S3 gateway

No auth, no checksums. Integrated in the fstests.

go/build.py

@@ -41,6 +41,7 @@ else:
     # Otherwise go will try to create the cache in /.cache, which won't work
     # since we're not running as root.
     os.environ['GOCACHE'] = '/eggsfs/.cache'
+    os.environ['GOMODCACHE'] = '/eggsfs/.go-cache'
     if args.generate:
         subprocess.run(['go', 'generate', './...'], cwd=go_dir, check=True)
     else:

go/client/client.go

@@ -177,6 +177,7 @@ type metadataProcessorRequest struct {
 type metadataProcessorResponse struct {
 	requestId uint64
 	resp      any
+	extra     any
 	err       error
 }
 
@@ -308,6 +309,7 @@ func (cm *clientMetadata) processRequests(log *lib.Logger) {
 				req.respCh <- &metadataProcessorResponse{
 					requestId: req.requestId,
 					err:       err,
+					extra:     req.extra,
 					resp:      nil,
 				}
 			}
@@ -341,6 +343,7 @@ func (cm *clientMetadata) processRequests(log *lib.Logger) {
 				req.respCh <- &metadataProcessorResponse{
 					requestId: req.requestId,
 					err:       err,
+					extra:     req.extra,
 					resp:      nil,
 				}
 			}
@@ -398,6 +401,7 @@ func (cm *clientMetadata) parseResponse(log *lib.Logger, req *metadataProcessorR
 		req.respCh <- &metadataProcessorResponse{
 			requestId: req.requestId,
 			err:       err,
+			extra:     req.extra,
 			resp:      nil,
 		}
 	} else {
@@ -409,6 +413,7 @@ func (cm *clientMetadata) parseResponse(log *lib.Logger, req *metadataProcessorR
 				req.respCh <- &metadataProcessorResponse{
 					requestId: req.requestId,
 					err:       msgs.MALFORMED_RESPONSE,
+					extra:     req.extra,
 					resp:      nil,
 				}
 				return
@@ -420,6 +425,7 @@ func (cm *clientMetadata) parseResponse(log *lib.Logger, req *metadataProcessorR
 				req.respCh <- &metadataProcessorResponse{
 					requestId: req.requestId,
 					err:       msgs.MALFORMED_RESPONSE,
+					extra:     req.extra,
 					resp:      nil,
 				}
 				return
@@ -431,6 +437,7 @@ func (cm *clientMetadata) parseResponse(log *lib.Logger, req *metadataProcessorR
 			req.respCh <- &metadataProcessorResponse{
 				requestId: req.requestId,
 				err:       err,
+				extra:     req.extra,
 				resp:      nil,
 			}
 			return
@@ -440,6 +447,7 @@ func (cm *clientMetadata) parseResponse(log *lib.Logger, req *metadataProcessorR
 		req.respCh <- &metadataProcessorResponse{
 			requestId: req.requestId,
 			err:       nil,
+			extra:     req.extra,
 			resp:      req.resp,
 		}
 	}
@@ -477,6 +485,7 @@ func (cm *clientMetadata) processRawResponse(log *lib.Logger, rawResp *rawMetada
 				first.respCh <- &metadataProcessorResponse{
 					requestId: first.requestId,
 					err:       msgs.TIMEOUT,
+					extra:     first.extra,
 					resp:      nil,
 				}
 			}()

go/client/span.go

@@ -933,6 +933,7 @@ type fileReader struct {
 	log           *lib.Logger
 	bufPool       *lib.BufPool
 	fileId        msgs.InodeId
+	fileSize int64 // if -1, we haven't initialized this yet
 	blockServices []msgs.BlockService
 	spans         []msgs.FetchedSpan
 	currentStripe *FetchedStripe
@@ -963,11 +964,32 @@ func (f *fileReader) Read(p []byte) (int, error) {
 	return r, nil
 }
 
+func (f *fileReader) Seek(offset int64, whence int) (int64, error) {
+	switch whence {
+	case io.SeekStart:
+		f.cursor = uint64(offset)
+	case io.SeekCurrent:
+		f.cursor = uint64(int64(f.cursor) + offset)
+	case io.SeekEnd:
+		if f.fileSize < 0 {
+			resp := msgs.StatFileResp{}
+			if err := f.client.ShardRequest(f.log, f.fileId.Shard(), &msgs.StatFileReq{Id: f.fileId}, &resp); err != nil {
+				return 0, err
+			}
+			f.fileSize = int64(resp.Size)
+		}
+		f.cursor = uint64(f.fileSize + offset)
+	default:
+		return 0, fmt.Errorf("bad whence %v", whence)
+	}
+	return int64(f.cursor), nil
+}
+
 func (c *Client) ReadFile(
 	log *lib.Logger,
 	bufPool *lib.BufPool,
 	id msgs.InodeId,
-) (io.ReadCloser, error) {
+) (io.ReadSeekCloser, error) {
 	blockServices, spans, err := c.FetchSpans(log, id)
 	if err != nil {
 		return nil, err
@@ -977,6 +999,7 @@ func (c *Client) ReadFile(
 		log:           log,
 		bufPool:       bufPool,
 		fileId:        id,
+		fileSize:	   -1,
 		blockServices: blockServices,
 		spans:         spans,
 	}

go/eggss3/eggss3.go

@@ -0,0 +1,100 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"net/http"
+	"os"
+	"strings"
+	"xtx/eggsfs/client"
+	"xtx/eggsfs/lib"
+	"xtx/eggsfs/msgs"
+	"xtx/eggsfs/s3"
+)
+
+// bucketFlag is a custom flag type to handle multiple "-bucket" arguments.
+type bucketFlag []string
+
+func (b *bucketFlag) String() string {
+	return fmt.Sprintf("%v", *b)
+}
+
+func (b *bucketFlag) Set(value string) error {
+	*b = append(*b, value)
+	return nil
+}
+
+func main() {
+	var buckets bucketFlag
+	flag.Var(&buckets, "bucket", "Bucket mapping in format <bucket-name>:<root-path>. Can be repeated.")
+	virtualHost := flag.String("virtual", "", "Domain for virtual host-style requests, e.g., 's3.example.com'")
+	addr := flag.String("addr", ":8080", "Address and port to listen on")
+	eggsfsAddr := flag.String("eggsfs", "localhost:10001", "Address of the eggsfs metaserver")
+	verbose := flag.Bool("verbose", false, "")
+	trace := flag.Bool("trace", false, "")
+	flag.Parse()
+
+	level := lib.INFO
+	if *verbose {
+		level = lib.DEBUG
+	}
+	if *trace {
+		level = lib.TRACE
+	}
+
+	log := lib.NewLogger(os.Stdout, &lib.LoggerOptions{
+		Level:            level,
+		AppInstance:      "eggss3",
+		AppType:          "restech_eggsfs.daytime",
+		PrintQuietAlerts: true,
+	})
+
+	if len(buckets) == 0 {
+		fmt.Fprintf(os.Stderr, "At least one -bucket flag is required.")
+		os.Exit(2)
+	}
+
+	c, err := client.NewClient(
+		log,
+		nil,
+		*eggsfsAddr,
+		msgs.AddrsInfo{},
+	)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Failed to create eggsfs client: %v", err)
+		os.Exit(1)
+	}
+
+	bucketPaths := make(map[string]string)
+	for _, b := range buckets {
+		parts := strings.SplitN(b, ":", 2)
+		if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
+			fmt.Fprint(os.Stderr, "Invalid bucket format %q. Expected <bucket-name>:<root-path>", b)
+			os.Exit(2)
+		}
+		bucketName, rootPath := parts[0], parts[1]
+		log.Info("Mapping bucket %q to path %q", bucketName, rootPath)
+		bucketPaths[bucketName] = rootPath
+	}
+
+	s3Server := s3.NewS3Server(
+		log,
+		c,
+		lib.NewBufPool(),
+		client.NewDirInfoCache(),
+		bucketPaths,
+		*virtualHost,
+	)
+
+	server := &http.Server{
+		Addr:    *addr,
+		Handler: s3Server,
+	}
+	log.Info("Starting S3 gateway on %q", *addr)
+	if *virtualHost != "" {
+		log.Info("Virtual host routing enabled for domain: %q", *virtualHost)
+	}
+	if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+		panic(err)
+	}
+}

go/eggstests/eggstests.go

@@ -319,7 +319,7 @@ func (r *RunTests) run(
 		"direct fs",
 		fmt.Sprintf("%v dirs, %v files, %v depth", fsTestOpts.numDirs, fsTestOpts.numFiles, fsTestOpts.depth),
 		func(counters *client.ClientCounters) {
-			fsTest(log, r.shuckleAddress(), &fsTestOpts, counters, "")
+			fsTest(log, r.shuckleAddress(), &fsTestOpts, counters, apiHarness{})
 		},
 	)
 
@@ -328,7 +328,16 @@ func (r *RunTests) run(
 		"mounted fs",
 		fmt.Sprintf("%v dirs, %v files, %v depth", fsTestOpts.numDirs, fsTestOpts.numFiles, fsTestOpts.depth),
 		func(counters *client.ClientCounters) {
-			fsTest(log, r.shuckleAddress(), &fsTestOpts, counters, r.mountPoint)
+			fsTest(log, r.shuckleAddress(), &fsTestOpts, counters, posixHarness{r.mountPoint})
+		},
+	)
+
+	r.test(
+		log,
+		"s3 fs",
+		fmt.Sprintf("%v dirs, %v files, %v depth", fsTestOpts.numDirs, fsTestOpts.numFiles, fsTestOpts.depth),
+		func(counters *client.ClientCounters) {
+			fsTest(log, r.shuckleAddress(), &fsTestOpts, counters, s3Harness{})
 		},
 	)
 

go/eggstests/fstest.go

@@ -3,11 +3,16 @@ package main
 
 import (
 	"bytes"
+	"context"
 	"fmt"
 	"io"
 	"math"
+	"net"
+	"net/http"
+	"net/url"
 	"os"
 	"path"
+	"path/filepath"
 	"runtime/debug"
 	"sort"
 	"strconv"
@@ -19,8 +24,12 @@ import (
 	"xtx/eggsfs/client"
 	"xtx/eggsfs/lib"
 	"xtx/eggsfs/msgs"
+	eggss3 "xtx/eggsfs/s3"
 	"xtx/eggsfs/wyhash"
 
+	"github.com/aws/aws-sdk-go-v2/aws"
+	s3config "github.com/aws/aws-sdk-go-v2/config"
+	"github.com/aws/aws-sdk-go-v2/service/s3"
 	"golang.org/x/sys/unix"
 )
 
@@ -43,7 +52,7 @@ type fsTestOpts struct {
 
 type fsTestHarness[Id comparable] interface {
 	createDirectory(log *lib.Logger, owner Id, name string) (Id, msgs.EggsTime)
-	rename(log *lib.Logger, targetId Id, oldOwner Id, oldCreationTime msgs.EggsTime, oldName string, newOwner Id, newName string) (Id, msgs.EggsTime)
+	rename(log *lib.Logger, isDirectory bool, targetId Id, oldOwner Id, oldCreationTime msgs.EggsTime, oldName string, newOwner Id, newName string) (Id, msgs.EggsTime)
 	createFile(log *lib.Logger, owner Id, spanSize uint32, name string, size uint64, dataSeed uint64) (Id, msgs.EggsTime)
 	checkFileData(log *lib.Logger, id Id, size uint64, dataSeed uint64)
 	// files, directories
@@ -71,6 +80,7 @@ func (c *apiFsTestHarness) createDirectory(log *lib.Logger, owner msgs.InodeId,
 
 func (c *apiFsTestHarness) rename(
 	log *lib.Logger,
+	isDirectory bool,
 	targetId msgs.InodeId,
 	oldOwner msgs.InodeId,
 	oldCreationTime msgs.EggsTime,
@@ -78,6 +88,9 @@ func (c *apiFsTestHarness) rename(
 	newOwner msgs.InodeId,
 	newName string,
 ) (msgs.InodeId, msgs.EggsTime) {
+	if isDirectory != (targetId.Type() == msgs.DIRECTORY) {
+		panic("mismatching isDirectory")
+	}
 	if oldOwner == newOwner {
 		req := msgs.SameDirectoryRenameReq{
 			TargetId:        targetId,
@@ -199,6 +212,182 @@ func (c *apiFsTestHarness) removeDirectory(log *lib.Logger, ownerId msgs.InodeId
 
 var _ = (fsTestHarness[msgs.InodeId])((*apiFsTestHarness)(nil))
 
+type s3TestHarness struct {
+	client  *s3.Client
+	bucket  string
+	bufPool *lib.BufPool
+}
+
+func (c *s3TestHarness) createDirectory(log *lib.Logger, owner string, name string) (id string, creationTime msgs.EggsTime) {
+	fullPath := path.Join(owner, name) + "/"
+	_, err := c.client.PutObject(context.TODO(), &s3.PutObjectInput{
+		Bucket: aws.String(c.bucket),
+		Key:    aws.String(fullPath),
+		Body:   bytes.NewReader([]byte{}),
+	})
+	if err != nil {
+		panic(err)
+	}
+	return path.Join(owner, name), 0
+}
+
+func (c *s3TestHarness) rename(log *lib.Logger, isDirectory bool, targetFullPath string, oldDir string, oldCreationTime msgs.EggsTime, oldName string, newDir string, newName string) (string, msgs.EggsTime) {
+	if targetFullPath != path.Join(oldDir, oldName) {
+		panic(fmt.Errorf("mismatching %v and %v", targetFullPath, path.Join(oldDir, oldName)))
+	}
+	sourcePath := targetFullPath
+	if isDirectory {
+		sourcePath += "/"
+	}
+	sinkPath := path.Join(newDir, newName)
+	if isDirectory {
+		sinkPath += "/"
+	}
+	output, err := c.client.GetObject(context.TODO(), &s3.GetObjectInput{
+		Bucket: aws.String(c.bucket),
+		Key:    aws.String(sourcePath),
+	})
+	if err != nil {
+		panic(err)
+	}
+	defer output.Body.Close()
+	outputSize := *output.ContentLength
+	outputBuf := c.bufPool.Get(int(outputSize))
+	defer c.bufPool.Put(outputBuf)
+	if _, err := io.ReadFull(output.Body, outputBuf.Bytes()); err != nil {
+		panic(err)
+	}
+	_, err = c.client.PutObject(context.TODO(), &s3.PutObjectInput{
+		Bucket: aws.String(c.bucket),
+		Key:    aws.String(sinkPath),
+		Body:   bytes.NewReader(outputBuf.Bytes()),
+	})
+	if err != nil {
+		panic(err)
+	}
+	_, err = c.client.DeleteObject(context.TODO(), &s3.DeleteObjectInput{
+		Bucket: aws.String(c.bucket),
+		Key:    aws.String(sourcePath),
+	})
+	if err != nil {
+		panic(err)
+	}
+	return path.Join(newDir, newName), 0
+}
+
+func (c *s3TestHarness) createFile(log *lib.Logger, owner string, spanSize uint32, name string, size uint64, dataSeed uint64) (string, msgs.EggsTime) {
+	fullPath := path.Join(owner, name)
+	rand := wyhash.New(dataSeed)
+	bodyBuf := c.bufPool.Get(int(size))
+	defer c.bufPool.Put(bodyBuf)
+	body := bodyBuf.Bytes()
+	rand.Read(body)
+	_, err := c.client.PutObject(context.TODO(), &s3.PutObjectInput{
+		Bucket: aws.String(c.bucket),
+		Key:    aws.String(fullPath),
+		Body:   bytes.NewReader(body),
+	})
+	if err != nil {
+		panic(err)
+	}
+	return fullPath, 0
+}
+
+func (c *s3TestHarness) checkFileData(log *lib.Logger, filePath string, size uint64, dataSeed uint64) {
+	fullSize := int(size)
+	expectedData := c.bufPool.Get(fullSize)
+	defer c.bufPool.Put(expectedData)
+	rand := wyhash.New(dataSeed)
+	rand.Read(expectedData.Bytes())
+	actualData := c.bufPool.Get(fullSize)
+	defer c.bufPool.Put(actualData)
+
+	// First do some random reads, hopefully stimulating span caches in some interesting way
+	if fullSize > 1 {
+		for i := 0; i < 10; i++ {
+			func() {
+				offset := int(rand.Uint64() % uint64(fullSize-1))
+				size := 1 + int(rand.Uint64()%uint64(fullSize-offset-1))
+				log.Debug("reading from %v to %v in file of size %v", offset, offset+size, fullSize)
+				expectedPartialData := expectedData.Bytes()[offset : offset+size]
+				actualPartialData := actualData.Bytes()[offset : offset+size]
+				output, err := c.client.GetObject(context.TODO(), &s3.GetObjectInput{
+					Bucket: aws.String(c.bucket),
+					Key:    aws.String(filePath),
+					Range:  aws.String(fmt.Sprintf("bytes=%v-%v", offset, offset+size-1)),
+				})
+				if err != nil {
+					panic(err)
+				}
+				if _, err := io.ReadFull(output.Body, actualPartialData); err != nil {
+					panic(err)
+				}
+				checkFileData(filePath, offset, offset+size, actualPartialData, expectedPartialData)
+			}()
+		}
+	}
+	// Then we check the whole thing
+	output, err := c.client.GetObject(context.TODO(), &s3.GetObjectInput{
+		Bucket: aws.String(c.bucket),
+		Key:    aws.String(filePath),
+	})
+	if err != nil {
+		panic(err)
+	}
+	defer output.Body.Close()
+	if _, err := io.ReadFull(output.Body, actualData.Bytes()); err != nil {
+		panic(err)
+	}
+	checkFileData(filePath, 0, fullSize, actualData.Bytes(), expectedData.Bytes())
+}
+
+func (c *s3TestHarness) readDirectory(log *lib.Logger, dir string) (files []string, directories []string) {
+	files = []string{}
+	directories = []string{}
+
+	paginator := s3.NewListObjectsV2Paginator(c.client, &s3.ListObjectsV2Input{
+		Bucket: aws.String(c.bucket),
+		Prefix: aws.String(dir + "/"),
+	})
+
+	for paginator.HasMorePages() {
+		page, err := paginator.NextPage(context.TODO())
+		if err != nil {
+			panic(err)
+		}
+		for i := range page.Contents {
+			files = append(files, filepath.Base(*page.Contents[i].Key))
+		}
+		for i := range page.CommonPrefixes {
+			directories = append(directories, filepath.Base(*page.CommonPrefixes[i].Prefix))
+		}
+	}
+
+	return files, directories
+}
+
+func (c *s3TestHarness) removeFile(log *lib.Logger, dir string, name string) {
+	_, err := c.client.DeleteObject(context.TODO(), &s3.DeleteObjectInput{
+		Bucket: aws.String(c.bucket),
+		Key:    aws.String(path.Join(dir, name)),
+	})
+	if err != nil {
+		panic(err)
+	}
+}
+
+func (c *s3TestHarness) removeDirectory(log *lib.Logger, dir string, name string) {
+	_, err := c.client.DeleteObject(context.TODO(), &s3.DeleteObjectInput{
+		Bucket: aws.String(c.bucket),
+		Key:    aws.String(path.Join(dir, name) + "/"),
+	})
+	if err != nil {
+		panic(err)
+	}
+}
+
+var _ = (fsTestHarness[string])((*s3TestHarness)(nil))
+
 type posixFsTestHarness struct {
 	bufPool      *lib.BufPool
 	readWithMmap bool
@@ -215,6 +404,7 @@ func (*posixFsTestHarness) createDirectory(log *lib.Logger, owner string, name s
 
 func (*posixFsTestHarness) rename(
 	log *lib.Logger,
+	isDirectory bool,
 	targetFullPath string,
 	oldDir string,
 	oldCreationTime msgs.EggsTime,
@@ -489,7 +679,7 @@ func (state *fsTestState[Id]) makeDirFromTemp(log *lib.Logger, harness fsTestHar
 	}
 	state.incrementDirs(log, opts)
 	id, tmpCreationTime = harness.createDirectory(log, tmpParentId, "tmp")
-	newId, creationTime := harness.rename(log, id, tmpParentId, tmpCreationTime, "tmp", dir.id, strconv.Itoa(name))
+	newId, creationTime := harness.rename(log, true, id, tmpParentId, tmpCreationTime, "tmp", dir.id, strconv.Itoa(name))
 	dir.children.directories[name] = fsTestChild[fsTestDir[Id]]{
 		body:         *newFsTestDir(newId),
 		creationTime: creationTime,
@@ -565,7 +755,7 @@ func (state *fsTestState[Id]) makeFileFromTemp(log *lib.Logger, harness fsTestHa
 	id, creationTime := harness.createFile(
 		log, tmpParentId, uint32(opts.spanSize), "tmp", size, dataSeed,
 	)
-	newId, creationTime := harness.rename(log, id, tmpParentId, creationTime, "tmp", dir.id, strconv.Itoa(name))
+	newId, creationTime := harness.rename(log, false, id, tmpParentId, creationTime, "tmp", dir.id, strconv.Itoa(name))
 	dir.children.files[name] = fsTestChild[fsTestFile[Id]]{
 		body: fsTestFile[Id]{
 			id:       newId,
@@ -1016,12 +1206,64 @@ func fsTestInternal[Id comparable](
 	log.Info("cleaned files in %s", time.Since(t0))
 }
 
+// createS3ClientFromURL parses a path-style S3 URL and returns an S3 client.
+// The client is configured for anonymous access and uses the URL's host as the endpoint.
+func createS3ClientFromURL(s3URL string) (client *s3.Client, bucket string) {
+	// Parse the provided URL string.
+	parsedURL, err := url.Parse(s3URL)
+	if err != nil {
+		panic(err)
+	}
+
+	// The first segment of the path is the bucket name.
+	// We need to trim the leading slash.
+	bucket = strings.Split(strings.TrimPrefix(parsedURL.Path, "/"), "/")[0]
+	if bucket == "" {
+		panic(fmt.Errorf("could not determine bucket from URL path"))
+	}
+
+	// The endpoint is the scheme and host from the URL.
+	endpoint := fmt.Sprintf("%s://%s", parsedURL.Scheme, parsedURL.Host)
+
+	// Load AWS configuration, specifying no credentials for anonymous access.
+	cfg, err := s3config.LoadDefaultConfig(context.TODO(),
+		s3config.WithCredentialsProvider(aws.AnonymousCredentials{}),
+		s3config.WithRegion("us-east-1"), // A region is required, but not used for path-style requests.
+	)
+	if err != nil {
+		panic(err)
+	}
+
+	// Create the S3 client.
+	s3Client := s3.NewFromConfig(cfg, func(o *s3.Options) {
+		// Set the endpoint resolver to our custom endpoint.
+		o.BaseEndpoint = aws.String(endpoint)
+		// Force path-style addressing, which is crucial.
+		o.UsePathStyle = true
+	})
+
+	return s3Client, bucket
+}
+
+type posixHarness struct {
+	mountPoint string
+}
+type s3Harness struct {}
+type apiHarness struct {}
+
+type WhichHarness interface {
+	isHarness()
+}
+func (posixHarness) isHarness() {}
+func (s3Harness) isHarness() {}
+func (apiHarness) isHarness() {}
+
 func fsTest(
 	log *lib.Logger,
 	shuckleAddress string,
 	opts *fsTestOpts,
 	counters *client.ClientCounters,
-	realFs string, // if non-empty, will run the tests using this mountpoint
+	harnessType WhichHarness,
 ) {
 	c, err := client.NewClient(log, nil, shuckleAddress, msgs.AddrsInfo{})
 	if err != nil {
@@ -1030,7 +1272,18 @@ func fsTest(
 	c.SetFetchBlockServices()
 	defer c.Close()
 	c.SetCounters(counters)
-	if realFs == "" {
+	switch h := harnessType.(type) {
+	case posixHarness:
+		harness := &posixFsTestHarness{
+			bufPool:      lib.NewBufPool(),
+			readWithMmap: opts.readWithMmap,
+		}
+		state := fsTestState[string]{
+			totalDirs: 1, // root dir
+			rootDir:   *newFsTestDir(h.mountPoint),
+		}
+		fsTestInternal[string](log, c, &state, shuckleAddress, opts, counters, harness, h.mountPoint)
+	case apiHarness:
 		harness := &apiFsTestHarness{
 			client:       c,
 			dirInfoCache: client.NewDirInfoCache(),
@@ -1041,15 +1294,37 @@ func fsTest(
 			rootDir:   *newFsTestDir(msgs.ROOT_DIR_INODE_ID),
 		}
 		fsTestInternal[msgs.InodeId](log, c, &state, shuckleAddress, opts, counters, harness, msgs.ROOT_DIR_INODE_ID)
-	} else {
-		harness := &posixFsTestHarness{
-			bufPool:      lib.NewBufPool(),
-			readWithMmap: opts.readWithMmap,
+	case s3Harness:
+		listener, err := net.Listen("tcp", "127.0.0.1:0")
+		if err != nil {
+			panic(err)
+		}
+		port := listener.Addr().(*net.TCPAddr).Port
+		bufPool := lib.NewBufPool()
+		server := eggss3.NewS3Server(log, c, bufPool, client.NewDirInfoCache(), map[string]string{"bucket": "/"}, "")
+		go http.Serve(listener, server)
+		cfg, err := s3config.LoadDefaultConfig(context.TODO(),
+			s3config.WithCredentialsProvider(aws.AnonymousCredentials{}),
+			s3config.WithRegion("us-east-1"), // A region is required, but not used for path-style requests.
+		)
+		if err != nil {
+			panic(err)
+		}
+		s3Client := s3.NewFromConfig(cfg, func(o *s3.Options) {
+			o.BaseEndpoint = aws.String(fmt.Sprintf("http://127.0.0.1:%v", port))
+			o.UsePathStyle = true
+		})
+		harness := &s3TestHarness{
+			bucket: "bucket",
+			client: s3Client,
+			bufPool: bufPool,
 		}
 		state := fsTestState[string]{
 			totalDirs: 1, // root dir
-			rootDir:   *newFsTestDir(realFs),
+			rootDir:   *newFsTestDir("/"),
 		}
-		fsTestInternal[string](log, c, &state, shuckleAddress, opts, counters, harness, realFs)
+		fsTestInternal[string](log, c, &state, shuckleAddress, opts, counters, harness, "/")
+	default:
+		panic(fmt.Errorf("bad harness %T", harnessType))
 	}
 }

go/go.mod

@@ -3,8 +3,29 @@ module xtx/eggsfs
 go 1.22
 
 require (
+	github.com/aws/aws-sdk-go-v2 v1.36.4
+	github.com/aws/aws-sdk-go-v2/config v1.29.16
+	github.com/aws/aws-sdk-go-v2/service/s3 v1.80.2
 	github.com/hanwen/go-fuse/v2 v2.2.0
 	github.com/mattn/go-sqlite3 v1.14.16
-	golang.org/x/sync v0.7.0
+	golang.org/x/sync v0.11.0
 	golang.org/x/sys v0.16.0
 )
+
+require (
+	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.6.10 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.17.69 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.31 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.35 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.35 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/v4a v1.3.35 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.12.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.7.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.12.16 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.18.16 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.25.4 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.30.2 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.33.21 // indirect
+	github.com/aws/smithy-go v1.22.2 // indirect
+)

go/go.sum

@@ -1,3 +1,39 @@
+github.com/aws/aws-sdk-go-v2 v1.36.4 h1:GySzjhVvx0ERP6eyfAbAuAXLtAda5TEy19E5q5W8I9E=
+github.com/aws/aws-sdk-go-v2 v1.36.4/go.mod h1:LLXuLpgzEbD766Z5ECcRmi8AzSwfZItDtmABVkRLGzg=
+github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.6.10 h1:zAybnyUQXIZ5mok5Jqwlf58/TFE7uvd3IAsa1aF9cXs=
+github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.6.10/go.mod h1:qqvMj6gHLR/EXWZw4ZbqlPbQUyenf4h82UQUlKc+l14=
+github.com/aws/aws-sdk-go-v2/config v1.29.16 h1:XkruGnXX1nEZ+Nyo9v84TzsX+nj86icbFAeust6uo8A=
+github.com/aws/aws-sdk-go-v2/config v1.29.16/go.mod h1:uCW7PNjGwZ5cOGZ5jr8vCWrYkGIhPoTNV23Q/tpHKzg=
+github.com/aws/aws-sdk-go-v2/credentials v1.17.69 h1:8B8ZQboRc3uaIKjshve/XlvJ570R7BKNy3gftSbS178=
+github.com/aws/aws-sdk-go-v2/credentials v1.17.69/go.mod h1:gPME6I8grR1jCqBFEGthULiolzf/Sexq/Wy42ibKK9c=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.31 h1:oQWSGexYasNpYp4epLGZxxjsDo8BMBh6iNWkTXQvkwk=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.31/go.mod h1:nc332eGUU+djP3vrMI6blS0woaCfHTe3KiSQUVTMRq0=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.35 h1:o1v1VFfPcDVlK3ll1L5xHsaQAFdNtZ5GXnNR7SwueC4=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.35/go.mod h1:rZUQNYMNG+8uZxz9FOerQJ+FceCiodXvixpeRtdESrU=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.35 h1:R5b82ubO2NntENm3SAm0ADME+H630HomNJdgv+yZ3xw=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.35/go.mod h1:FuA+nmgMRfkzVKYDNEqQadvEMxtxl9+RLT9ribCwEMs=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3 h1:bIqFDwgGXXN1Kpp99pDOdKMTTb5d2KyU5X/BZxjOkRo=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3/go.mod h1:H5O/EsxDWyU+LP/V8i5sm8cxoZgc2fdNR9bxlOFrQTo=
+github.com/aws/aws-sdk-go-v2/internal/v4a v1.3.35 h1:th/m+Q18CkajTw1iqx2cKkLCij/uz8NMwJFPK91p2ug=
+github.com/aws/aws-sdk-go-v2/internal/v4a v1.3.35/go.mod h1:dkJuf0a1Bc8HAA0Zm2MoTGm/WDC18Td9vSbrQ1+VqE8=
+github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.12.3 h1:eAh2A4b5IzM/lum78bZ590jy36+d/aFLgKF/4Vd1xPE=
+github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.12.3/go.mod h1:0yKJC/kb8sAnmlYa6Zs3QVYqaC8ug2AbnNChv5Ox3uA=
+github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.7.3 h1:VHPZakq2L7w+RLzV54LmQavbvheFaR2u1NomJRSEfcU=
+github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.7.3/go.mod h1:DX1e/lkbsAt0MkY3NgLYuH4jQvRfw8MYxTe9feR7aXM=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.12.16 h1:/ldKrPPXTC421bTNWrUIpq3CxwHwRI/kpc+jPUTJocM=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.12.16/go.mod h1:5vkf/Ws0/wgIMJDQbjI4p2op86hNW6Hie5QtebrDgT8=
+github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.18.16 h1:2HuI7vWKhFWsBhIr2Zq8KfFZT6xqaId2XXnXZjkbEuc=
+github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.18.16/go.mod h1:BrwWnsfbFtFeRjdx0iM1ymvlqDX1Oz68JsQaibX/wG8=
+github.com/aws/aws-sdk-go-v2/service/s3 v1.80.2 h1:T6Wu+8E2LeTUqzqQ/Bh1EoFNj1u4jUyveMgmTlu9fDU=
+github.com/aws/aws-sdk-go-v2/service/s3 v1.80.2/go.mod h1:chSY8zfqmS0OnhZoO/hpPx/BHfAIL80m77HwhRLYScY=
+github.com/aws/aws-sdk-go-v2/service/sso v1.25.4 h1:EU58LP8ozQDVroOEyAfcq0cGc5R/FTZjVoYJ6tvby3w=
+github.com/aws/aws-sdk-go-v2/service/sso v1.25.4/go.mod h1:CrtOgCcysxMvrCoHnvNAD7PHWclmoFG78Q2xLK0KKcs=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.30.2 h1:XB4z0hbQtpmBnb1FQYvKaCM7UsS6Y/u8jVBwIUGeCTk=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.30.2/go.mod h1:hwRpqkRxnQ58J9blRDrB4IanlXCpcKmsC83EhG77upg=
+github.com/aws/aws-sdk-go-v2/service/sts v1.33.21 h1:nyLjs8sYJShFYj6aiyjCBI3EcLn1udWrQTjEF+SOXB0=
+github.com/aws/aws-sdk-go-v2/service/sts v1.33.21/go.mod h1:EhdxtZ+g84MSGrSrHzZiUm9PYiZkrADNja15wtRJSJo=
+github.com/aws/smithy-go v1.22.2 h1:6D9hW43xKFrRx/tXXfAlIZc4JI+yQe6snnWcQyxSyLQ=
+github.com/aws/smithy-go v1.22.2/go.mod h1:irrKGvNn1InZwb2d7fkIRNucdfwR8R+Ts3wxYa/cJHg=
 github.com/hanwen/go-fuse/v2 v2.2.0 h1:jo5QZYmBLNcl9ovypWaQ5yXMSSV+Ch68xoC3rtZvvBM=
 github.com/hanwen/go-fuse/v2 v2.2.0/go.mod h1:B1nGE/6RBFyBRC1RRnf23UpwCdyJ31eukw34oAKukAc=
 github.com/kylelemons/godebug v0.0.0-20170820004349-d65d576e9348 h1:MtvEpTB6LX3vkb4ax0b5D2DHbNAUsen0Gx5wZoq3lV4=
@@ -5,8 +41,8 @@ github.com/kylelemons/godebug v0.0.0-20170820004349-d65d576e9348/go.mod h1:B69LE
 github.com/mattn/go-sqlite3 v1.14.16 h1:yOQRA0RpS5PFz/oikGwBEqvAWhWg5ufRz4ETLjwpU1Y=
 github.com/mattn/go-sqlite3 v1.14.16/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
-golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.11.0 h1:GGz8+XQP4FvTTrjZPzNKTMFtSXH80RAzG+5ghFPgK9w=
+golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
 golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

go/s3/s3.go

@@ -0,0 +1,893 @@
+package s3
+
+import (
+	"bytes"
+	"context"
+	"encoding/xml"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"runtime/debug"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+	"xtx/eggsfs/client"
+	"xtx/eggsfs/lib"
+	"xtx/eggsfs/msgs"
+
+	"golang.org/x/sync/errgroup"
+)
+
+// S3Error represents an error response compliant with the S3 API.
+type S3Error struct {
+	XMLName    xml.Name `xml:"Error"`
+	Code       string   `xml:"Code"`
+	Message    string   `xml:"Message"`
+	Resource   string   `xml:"Resource"`
+	BucketName string   `xml:"BucketName,omitempty"`
+	StatusCode int      `xml:"-"` // The HTTP status code to return.
+}
+
+func (e *S3Error) Error() string {
+	return e.Message
+}
+
+// --- S3 XML Response Structures ---
+
+type CommonPrefix struct {
+	Prefix string `xml:"Prefix"`
+}
+type ListBucketResultV2 struct {
+	XMLName               xml.Name       `xml:"ListBucketResult"`
+	Name                  string         `xml:"Name"`
+	Prefix                string         `xml:"Prefix"`
+	MaxKeys               int            `xml:"MaxKeys"`
+	Delimiter             string         `xml:"Delimiter,omitempty"`
+	Contents              []Object       `xml:"Contents"`
+	CommonPrefixes        []CommonPrefix `xml:"CommonPrefixes,omitempty"`
+	IsTruncated           bool           `xml:"IsTruncated"`
+	KeyCount              int            `xml:"KeyCount"`
+	ContinuationToken     string         `xml:"ContinuationToken,omitempty"`
+	NextContinuationToken string         `xml:"NextContinuationToken,omitempty"`
+}
+type Object struct {
+	Key          string    `xml:"Key"`
+	LastModified time.Time `xml:"LastModified"`
+	ETag         string    `xml:"ETag"`
+	Size         int64     `xml:"Size"`
+}
+type CreateMultipartUploadResult struct {
+	XMLName  xml.Name `xml:"InitiateMultipartUploadResult"`
+	Bucket   string   `xml:"Bucket"`
+	Key      string   `xml:"Key"`
+	UploadID string   `xml:"UploadId"`
+}
+type CompleteMultipartUploadResult struct {
+	XMLName  xml.Name `xml:"CompleteMultipartUploadResult"`
+	Location string   `xml:"Location"`
+	Bucket   string   `xml:"Bucket"`
+	Key      string   `xml:"Key"`
+	ETag     string   `xml:"ETag"`
+}
+type DeleteResult struct {
+	XMLName xml.Name        `xml:"DeleteResult"`
+	Deleted []DeletedObject `xml:"Deleted,omitempty"`
+	Error   []ErrorObject   `xml:"Error,omitempty"`
+}
+type DeletedObject struct {
+	Key string `xml:"Key"`
+}
+type ErrorObject struct {
+	Key     string `xml:"Key"`
+	Code    string `xml:"Code"`
+	Message string `xml:"Message"`
+}
+
+// --- S3 XML Request Structures ---
+type CompleteMultipartUpload struct {
+	XMLName xml.Name     `xml:"CompleteMultipartUpload"`
+	Parts   []UploadPart `xml:"Part"`
+}
+type UploadPart struct {
+	PartNumber int    `xml:"PartNumber"`
+	ETag       string `xml:"ETag"`
+}
+type Delete struct {
+	XMLName xml.Name         `xml:"Delete"`
+	Objects []ObjectToDelete `xml:"Object"`
+	Quiet   bool             `xml:"Quiet"`
+}
+type ObjectToDelete struct {
+	Key string `xml:"Key"`
+}
+
+type objectPath struct {
+	segments    []string
+	isDirectory bool
+}
+
+func (p *objectPath) String() string {
+	s := "/" + strings.Join(p.segments, "/")
+	if p.isDirectory && len(p.segments) > 0 {
+		s += "/"
+	}
+	return s
+}
+
+func (p *objectPath) basename() string {
+	if len(p.segments) == 0 {
+		return ""
+	}
+	return p.segments[len(p.segments)-1]
+}
+
+func (p *objectPath) dir() *objectPath {
+	d := &objectPath{
+		segments:    []string{},
+		isDirectory: true,
+	}
+	if len(p.segments) > 1 {
+		d.segments = p.segments[:len(p.segments)-1]
+	}
+	return d
+}
+
+func parseObjectPath(str string) *objectPath {
+	p := &objectPath{
+		segments:    []string{},
+		isDirectory: len(str) > 0 && str[len(str)-1] == '/',
+	}
+	// Trim leading/trailing slashes for splitting
+	for _, segment := range strings.Split(str, "/") {
+		if len(segment) > 0 {
+			p.segments = append(p.segments, segment)
+		}
+	}
+	return p
+}
+
+// --- Handler Implementation ---
+type S3Server struct {
+	log          *lib.Logger
+	c            *client.Client
+	bufPool      *lib.BufPool
+	dirInfoCache *client.DirInfoCache
+	bucketPaths  map[string]string
+	virtualHost  string
+}
+
+func NewS3Server(
+	log *lib.Logger,
+	client *client.Client,
+	bufPool *lib.BufPool,
+	dirInfoCache *client.DirInfoCache,
+	buckets map[string]string, // mapping from bucket to paths
+	virtualHost string, // if not present, path-style bucket resolution will be used
+) *S3Server {
+	return &S3Server{
+		log:          log,
+		c:            client,
+		bufPool:      bufPool,
+		dirInfoCache: dirInfoCache,
+		bucketPaths:  buckets,
+		virtualHost:  virtualHost,
+	}
+}
+
+// s3Handler defines the signature for all S3 operation handlers.
+type s3Handler func(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error
+
+var stacktraceLock sync.Mutex
+
+// recoverPanics is a middleware that recovers from panics in a handler,
+// logs the stack trace, and returns an error.
+func (s *S3Server) recoverPanics(handler s3Handler) s3Handler {
+	return func(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) (err error) {
+		defer func() {
+			if rec := recover(); rec != nil {
+				err = fmt.Errorf("internal server panic: %v", rec)
+				s.log.RaiseAlert(fmt.Sprintf("caught stray error: %v", rec))
+				stacktraceLock.Lock()
+				fmt.Fprintf(os.Stderr, "PANIC %v. Stacktrace:\n", rec)
+				for _, line := range strings.Split(string(debug.Stack()), "\n") {
+					fmt.Fprintln(os.Stderr, line)
+				}
+				stacktraceLock.Unlock()
+			}
+		}()
+		err = handler(ctx, w, r, bucket, rootId, path)
+		return
+	}
+}
+
+// FileEtag generates a consistent ETag for a given file ID.
+func FileEtag(id msgs.InodeId) string {
+	return fmt.Sprintf(`"%x"`, uint64(id))
+}
+
+// parseRange parses the HTTP Range header.
+func parseRange(rangeHeader string, totalSize int64) (start, length int64, err error) {
+	if !strings.HasPrefix(rangeHeader, "bytes=") {
+		return 0, 0, errors.New("invalid range header format")
+	}
+	rangeSpec := strings.TrimPrefix(rangeHeader, "bytes=")
+	parts := strings.Split(rangeSpec, "-")
+	if len(parts) != 2 {
+		return 0, 0, errors.New("invalid range specification")
+	}
+	startStr, endStr := parts[0], parts[1]
+	if startStr == "" && endStr == "" {
+		return 0, 0, errors.New("invalid range: both start and end are empty")
+	}
+	if startStr != "" {
+		start, err = strconv.ParseInt(startStr, 10, 64)
+		if err != nil || start < 0 {
+			return 0, 0, errors.New("invalid start range")
+		}
+	}
+	var end int64
+	if endStr != "" {
+		end, err = strconv.ParseInt(endStr, 10, 64)
+		if err != nil || end < 0 {
+			return 0, 0, errors.New("invalid end range")
+		}
+	} else {
+		end = totalSize - 1
+	}
+	if startStr == "" {
+		// This is a suffix range, e.g., "bytes=-500"
+		suffixLength, err := strconv.ParseInt(endStr, 10, 64)
+		if err != nil {
+			return 0, 0, errors.New("invalid suffix range")
+		}
+		start = totalSize - suffixLength
+		length = suffixLength
+	} else {
+		length = end - start + 1
+	}
+	if start > end || start >= totalSize || length <= 0 {
+		return 0, 0, errors.New("range not satisfiable")
+	}
+	return start, length, nil
+}
+
+// extractBucketAndPath determines the bucket and object path from the request.
+// It supports both virtual-host and path-style addressing.
+func (s *S3Server) extractBucketAndPath(r *http.Request) (bucketName string, path *objectPath, err error) {
+	fullPath := parseObjectPath(r.URL.Path)
+
+	// Virtual host-style routing
+	if s.virtualHost != "" {
+		host := r.Host
+		suffix := "." + s.virtualHost
+		if strings.HasSuffix(host, suffix) {
+			bucketName = strings.TrimSuffix(host, suffix)
+			path = fullPath
+			return bucketName, path, nil
+		}
+		// If virtual host is configured, we only accept virtual-host style requests.
+		return "", nil, &S3Error{
+			Code:       "InvalidRequest",
+			Message:    "Request does not comply with virtual host setup. When virtual host routing is configured, all requests must use virtual host-style addressing.",
+			StatusCode: http.StatusBadRequest,
+		}
+	}
+
+	// Path-style routing
+	if len(fullPath.segments) == 0 {
+		// For bucket/object operations, a bucket is always required in the path.
+		// This handles the case of a request to the root '/' which might be for
+		// service-level operations not implemented here.
+		return "", nil, &S3Error{
+			Code:       "InvalidRequest",
+			Message:    "Request URI does not contain a bucket name.",
+			StatusCode: http.StatusBadRequest,
+		}
+	}
+
+	bucketName = fullPath.segments[0]
+	path = &objectPath{
+		segments:    fullPath.segments[1:],
+		isDirectory: fullPath.isDirectory,
+	}
+	return bucketName, path, nil
+}
+
+// ServeHTTP is the main entry point for all S3 requests. It routes requests
+// to the appropriate handler and centralizes error handling.
+func (s *S3Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	var handler s3Handler
+	var handlerErr error
+	ctx := r.Context()
+
+	bucketName, path, err := s.extractBucketAndPath(r)
+	if err != nil {
+		s.log.Info("Failed to extract bucket and path: %v", err)
+		var s3Err *S3Error
+		if errors.As(err, &s3Err) {
+			if s3Err.Resource == "" {
+				s3Err.Resource = r.URL.Path
+			}
+			s.writeXML(w, s3Err.StatusCode, s3Err)
+		} else {
+			s.writeXML(w, http.StatusInternalServerError, &S3Error{Code: "InternalError", Message: err.Error(), Resource: r.URL.Path})
+		}
+		return
+	}
+
+	s.log.Debug("Received request: Method=%q Host=%q Path=%q Query=%v -> Bucket=%q Key=%q", r.Method, r.Host, r.URL.Path, r.URL.Query(), bucketName, path.String())
+
+	// Look up the bucket's root path string.
+	rootPath, ok := s.bucketPaths[bucketName]
+	if !ok {
+		s.writeXML(w, http.StatusNotFound, &S3Error{Code: "NoSuchBucket", Message: "The specified bucket does not exist", Resource: r.URL.Path, BucketName: bucketName, StatusCode: http.StatusNotFound})
+		return
+	}
+
+	// Resolve the path to an InodeId on every request.
+	rootId, err := lookupPath(ctx, s.log, s.c, parseObjectPath(rootPath))
+	if err != nil {
+		s.log.RaiseAlert("Could not resolve root path %q for configured bucket %q: %v", rootPath, bucketName, err)
+		s.writeXML(w, http.StatusInternalServerError, &S3Error{
+			Code:       "InternalError",
+			Message:    "The bucket's underlying storage is unavailable.",
+			Resource:   r.URL.Path,
+			BucketName: bucketName,
+		})
+		return
+	}
+
+	query := r.URL.Query()
+
+	// Route the request to the correct handler.
+	switch {
+	case query.Has("uploads"):
+		handler = s.handleCreateMultipartUpload
+	case query.Has("uploadId") && query.Has("partNumber"):
+		handler = s.handleUploadPart
+	case query.Has("uploadId"):
+		handler = s.handleCompleteMultipartUpload
+	case query.Has("attributes"):
+		handler = s.handleGetObjectAttributes
+	case query.Has("delete"):
+		handler = s.handleDeleteObjects
+	case query.Has("list-type") && query.Get("list-type") == "2":
+		handler = s.handleListObjectsV2
+	default:
+		switch r.Method {
+		case http.MethodGet, http.MethodHead:
+			handler = s.handleGetObject
+		case http.MethodPut:
+			handler = s.handlePutObject
+		case http.MethodDelete:
+			handler = s.handleDeleteObject
+		}
+	}
+
+	if handler != nil {
+		// Wrap the handler to recover from panics and call it.
+		handlerErr = s.recoverPanics(handler)(ctx, w, r, bucketName, rootId, path)
+	} else {
+		handlerErr = &S3Error{Code: "MethodNotAllowed", Message: "The specified method is not allowed against this resource.", StatusCode: http.StatusMethodNotAllowed}
+	}
+
+	// Centralized error handling.
+	if handlerErr != nil {
+		s.log.Debug("Request failed: %v", handlerErr)
+		var s3Err *S3Error
+		if errors.As(handlerErr, &s3Err) {
+			if s3Err.Resource == "" {
+				s3Err.Resource = r.URL.Path
+			}
+			s3Err.BucketName = bucketName
+			s.writeXML(w, s3Err.StatusCode, s3Err)
+		} else {
+			// Generic internal error for any other unhandled error type.
+			s.writeXML(w, http.StatusInternalServerError, &S3Error{
+				Code:       "InternalError",
+				Message:    handlerErr.Error(),
+				Resource:   r.URL.Path,
+				BucketName: bucketName,
+			})
+		}
+	}
+}
+
+// writeXML marshals data to XML and writes it to the response.
+func (s *S3Server) writeXML(w http.ResponseWriter, statusCode int, data interface{}) {
+	w.Header().Set("Content-Type", "application/xml; charset=utf-8")
+	w.WriteHeader(statusCode)
+	if err := xml.NewEncoder(w).Encode(data); err != nil {
+		s.log.Info("Error writing XML response: %v", err)
+	}
+}
+
+// lookupDir traverses a path to find the final directory's InodeId.
+func (s *S3Server) lookupDir(ctx context.Context, rootId msgs.InodeId, path *objectPath) (msgs.InodeId, error) {
+	s.log.Debug("lookupDir=%q in root %d", path.String(), rootId)
+	current := rootId
+
+	for _, segment := range path.segments {
+		lookupResp := &msgs.LookupResp{}
+		req := &msgs.LookupReq{DirId: current, Name: segment}
+		if err := s.c.ShardRequest(s.log, current.Shard(), req, lookupResp); err != nil {
+			if errors.Is(err, msgs.NAME_NOT_FOUND) {
+				return 0, &S3Error{Code: "NoSuchKey", Message: "The specified key does not exist.", StatusCode: http.StatusNotFound}
+			}
+			return 0, fmt.Errorf("lookup failed for segment '%s': %w", segment, err)
+		}
+		if lookupResp.TargetId.Type() != msgs.DIRECTORY {
+			return 0, &S3Error{Code: "InvalidRequest", Message: fmt.Sprintf("A component of the path is not a directory: %s", segment), StatusCode: http.StatusBadRequest}
+		}
+		current = lookupResp.TargetId
+	}
+	return current, nil
+}
+
+func (s *S3Server) lookupDirEntry(ctx context.Context, rootId msgs.InodeId, path *objectPath) (dirId msgs.InodeId, lookupResp *msgs.LookupResp, err error) {
+	if len(path.segments) == 0 {
+		return msgs.NULL_INODE_ID, &msgs.LookupResp{TargetId: rootId}, nil
+	}
+
+	dirId, err = s.lookupDir(ctx, rootId, path.dir())
+	if err != nil {
+		return 0, nil, err // Pass through S3Error from lookupDir
+	}
+
+	lookupResp = &msgs.LookupResp{}
+	req := &msgs.LookupReq{DirId: dirId, Name: path.basename()}
+	if err := s.c.ShardRequest(s.log, dirId.Shard(), req, lookupResp); err != nil {
+		if errors.Is(err, msgs.NAME_NOT_FOUND) {
+			return 0, nil, &S3Error{Code: "NoSuchKey", Message: "The specified key does not exist.", StatusCode: http.StatusNotFound}
+		}
+		return 0, nil, fmt.Errorf("dir entry lookup for %q failed: %w", path.String(), err)
+	}
+	return dirId, lookupResp, nil
+}
+
+func (s *S3Server) handleGetObject(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error {
+	s.log.Debug("GetObject: bucket=%s path=%s", bucket, path)
+	_, dentry, err := s.lookupDirEntry(ctx, rootId, path)
+	if err != nil {
+		return err // Returns S3Error or internal error
+	}
+
+	if dentry.TargetId.Type() == msgs.DIRECTORY && !path.isDirectory {
+		return &S3Error{Code: "NoSuchKey", Message: "The specified key does not exist.", StatusCode: http.StatusNotFound}
+	}
+
+	var lastModified msgs.EggsTime
+	var size uint64
+	var bodyReader io.ReadSeeker
+
+	if dentry.TargetId.Type() == msgs.DIRECTORY {
+		statResp := &msgs.StatDirectoryResp{}
+		if err := s.c.ShardRequest(s.log, dentry.TargetId.Shard(), &msgs.StatDirectoryReq{Id: dentry.TargetId}, statResp); err != nil {
+			return fmt.Errorf("stat failed for directory %q: %w", path.String(), err)
+		}
+		lastModified = statResp.Mtime
+		bodyReader = bytes.NewReader([]byte{})
+	} else {
+		statResp := &msgs.StatFileResp{}
+		if err := s.c.ShardRequest(s.log, dentry.TargetId.Shard(), &msgs.StatFileReq{Id: dentry.TargetId}, statResp); err != nil {
+			return fmt.Errorf("stat failed for file %q: %w", path.String(), err)
+		}
+		fileReader, err := s.c.ReadFile(s.log, s.bufPool, dentry.TargetId)
+		if err != nil {
+			return fmt.Errorf("failed to read contents of file id=%v: %w", dentry.TargetId, err)
+		}
+		defer fileReader.Close()
+		bodyReader = fileReader
+		size = statResp.Size
+		lastModified = statResp.Mtime
+	}
+
+	rangeHeader := r.Header.Get("Range")
+	w.Header().Set("ETag", FileEtag(dentry.TargetId))
+	w.Header().Set("Last-Modified", lastModified.Time().Format(http.TimeFormat))
+	w.Header().Set("Accept-Ranges", "bytes")
+	w.Header().Set("Content-Type", "application/octet-stream")
+
+	if rangeHeader == "" {
+		w.Header().Set("Content-Length", strconv.FormatInt(int64(size), 10))
+		w.WriteHeader(http.StatusOK)
+		if r.Method != http.MethodHead {
+			if _, err := io.Copy(w, bodyReader); err != nil {
+				s.log.Info("GetObject: Error writing full response body for object %s: %v", path, err)
+			}
+		}
+		return nil
+	}
+
+	start, length, err := parseRange(rangeHeader, int64(size))
+	if err != nil {
+		w.Header().Set("Content-Range", fmt.Sprintf("bytes */%d", size))
+		return &S3Error{Code: "InvalidRange", Message: "The requested range is not satisfiable", StatusCode: http.StatusRequestedRangeNotSatisfiable}
+	}
+	if _, err := bodyReader.Seek(start, io.SeekStart); err != nil {
+		return fmt.Errorf("failed to seek object: %w", err)
+	}
+
+	w.Header().Set("Content-Length", strconv.FormatInt(length, 10))
+	w.Header().Set("Content-Range", fmt.Sprintf("bytes %d-%d/%d", start, start+length-1, size))
+	w.WriteHeader(http.StatusPartialContent)
+	if r.Method != http.MethodHead {
+		if _, err := io.CopyN(w, bodyReader, length); err != nil {
+			s.log.Info("GetObject: Error writing partial response body for object %s: %v", path, err)
+		}
+	}
+	return nil
+}
+
+func (s *S3Server) handleGetObjectAttributes(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error {
+	if r.Method != http.MethodHead && r.Method != http.MethodGet {
+		return &S3Error{Code: "MethodNotAllowed", Message: "This resource only supports GET or HEAD.", StatusCode: http.StatusMethodNotAllowed}
+	}
+	s.log.Debug("GetObjectAttributes: path=%s", path)
+
+	_, dentry, err := s.lookupDirEntry(ctx, rootId, path)
+	if err != nil {
+		return err
+	}
+
+	inode := dentry.TargetId
+	var size uint64
+	var lastModified msgs.EggsTime
+
+	if inode.Type() == msgs.DIRECTORY {
+		statResp := &msgs.StatDirectoryResp{}
+		if err := s.c.ShardRequest(s.log, dentry.TargetId.Shard(), &msgs.StatDirectoryReq{Id: dentry.TargetId}, statResp); err != nil {
+			return fmt.Errorf("stat failed for directory %q: %w", path.String(), err)
+		}
+		lastModified = statResp.Mtime
+	} else {
+		statResp := &msgs.StatFileResp{}
+		if err := s.c.ShardRequest(s.log, dentry.TargetId.Shard(), &msgs.StatFileReq{Id: dentry.TargetId}, statResp); err != nil {
+			return fmt.Errorf("stat failed for file %q: %w", path.String(), err)
+		}
+		size = statResp.Size
+		lastModified = statResp.Mtime
+	}
+
+	w.Header().Set("x-amz-object-attributes-etag", FileEtag(dentry.TargetId))
+	w.Header().Set("x-amz-object-attributes-last-modified", lastModified.Time().UTC().Format(http.TimeFormat))
+	w.Header().Set("x-amz-object-attributes-object-size", strconv.FormatInt(int64(size), 10))
+	w.Header().Set("x-amz-storage-class", "STANDARD")
+	w.WriteHeader(http.StatusOK)
+	return nil
+}
+
+func (s *S3Server) handleListObjectsV2(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error {
+	if r.Method != http.MethodGet {
+		return &S3Error{Code: "MethodNotAllowed", Message: "This resource only supports GET.", StatusCode: http.StatusMethodNotAllowed}
+	}
+
+	query := r.URL.Query()
+	prefix := parseObjectPath(query.Get("prefix"))
+	prefixStr := prefix.String()
+	if !prefix.isDirectory {
+		return &S3Error{Code: "InvalidArgument", Message: "Only prefixes terminating with / (directories) are allowed", StatusCode: http.StatusBadRequest}
+	}
+	delimiter := query.Get("delimiter")
+	if delimiter == "" {
+		delimiter = "/"
+	}
+	if delimiter != "/" {
+		return &S3Error{Code: "InvalidArgument", Message: "Delimiter must be empty or '/'", StatusCode: http.StatusBadRequest}
+	}
+	maxKeys, _ := strconv.Atoi(query.Get("max-keys"))
+	if maxKeys <= 0 {
+		maxKeys = 1000
+	}
+	startHash, _ := strconv.ParseUint(query.Get("continuation-token"), 10, 64)
+
+	s.log.Debug("ListObjectsV2: bucket=%q prefix=%q", bucket, prefix.String())
+
+	dirId, err := s.lookupDir(ctx, rootId, prefix)
+	if err != nil {
+		// If the prefix itself doesn't exist, return an empty list.
+		var s3Err *S3Error
+		if errors.As(err, &s3Err) && s3Err.Code == "NoSuchKey" {
+			response := ListBucketResultV2{
+				Name:      bucket,
+				Prefix:    prefix.String(),
+				Delimiter: delimiter,
+				MaxKeys:   maxKeys,
+				KeyCount:  0,
+			}
+			s.writeXML(w, http.StatusOK, response)
+			return nil
+		}
+		return err
+	}
+
+	readDirResp := &msgs.ReadDirResp{}
+	req := &msgs.ReadDirReq{DirId: dirId, StartHash: msgs.NameHash(startHash)}
+	if err := s.c.ShardRequest(s.log, dirId.Shard(), req, readDirResp); err != nil {
+		return fmt.Errorf("could not read directory %q: %w", prefix, err)
+	}
+
+	response := ListBucketResultV2{
+		Name:              bucket,
+		Prefix:            prefix.String(),
+		Delimiter:         delimiter,
+		MaxKeys:           maxKeys,
+		Contents:          []Object{},
+		CommonPrefixes:    []CommonPrefix{},
+		ContinuationToken: query.Get("continuation-token"),
+	}
+
+	var filesToProcess []msgs.CurrentEdge
+	for i := range readDirResp.Results {
+		if len(response.Contents)+len(response.CommonPrefixes) >= maxKeys {
+			response.IsTruncated = true
+			response.NextContinuationToken = fmt.Sprintf("%d", uint64(readDirResp.Results[i].NameHash))
+			break
+		}
+		entry := &readDirResp.Results[i]
+		if entry.TargetId.Type() == msgs.DIRECTORY {
+			response.CommonPrefixes = append(response.CommonPrefixes, CommonPrefix{Prefix: prefixStr + entry.Name + "/"})
+		} else {
+			filesToProcess = append(filesToProcess, *entry)
+		}
+	}
+
+	if len(filesToProcess) > 0 {
+		g, _ := errgroup.WithContext(ctx)
+		response.Contents = make([]Object, len(filesToProcess))
+		for i, entry := range filesToProcess {
+			i, entry := i, entry // capture loop variables
+			g.Go(func() error {
+				s.log.Debug("Spawning request for details of object %s", entry.Name)
+				resp := &msgs.StatFileResp{}
+				if err := s.c.ShardRequest(s.log, entry.TargetId.Shard(), &msgs.StatFileReq{Id: entry.TargetId}, resp); err != nil {
+					return err
+				}
+				response.Contents[i] = Object{
+					Key:          prefixStr + entry.Name,
+					ETag:         FileEtag(entry.TargetId),
+					Size:         int64(resp.Size),
+					LastModified: resp.Mtime.Time(),
+				}
+				return nil
+			})
+		}
+		if err := g.Wait(); err != nil {
+			return err
+		}
+	}
+
+	if !response.IsTruncated && readDirResp.NextHash != 0 {
+		isTruncated := len(response.Contents)+len(response.CommonPrefixes) < len(readDirResp.Results)
+		if isTruncated || (readDirResp.NextHash != 0 && len(readDirResp.Results) > 0) {
+			response.IsTruncated = true
+			if response.NextContinuationToken == "" {
+				response.NextContinuationToken = fmt.Sprintf("%d", uint64(readDirResp.NextHash))
+			}
+		}
+	}
+	response.KeyCount = len(response.Contents) + len(response.CommonPrefixes)
+	s.writeXML(w, http.StatusOK, response)
+	return nil
+}
+
+func (s *S3Server) handlePutObject(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error {
+	s.log.Debug("PutObject: bucket=%q path=%q", bucket, path.String())
+
+	if len(path.segments) == 0 {
+		return &S3Error{Code: "MethodNotAllowed", Message: "PUT is not allowed on a bucket. To create a bucket, use the AWS CLI or other tools.", StatusCode: http.StatusMethodNotAllowed}
+	}
+
+	ownerId := rootId
+	var err error
+
+	// Create parent directories if they don't exist
+	for _, dirName := range path.dir().segments {
+		lookupResp := msgs.LookupResp{}
+		err = s.c.ShardRequest(s.log, ownerId.Shard(), &msgs.LookupReq{DirId: ownerId, Name: dirName}, &lookupResp)
+		if err != nil {
+			if errors.Is(err, msgs.NAME_NOT_FOUND) {
+				s.log.Debug("Directory %q in dir %d not found, creating it.", dirName, ownerId)
+				resp := &msgs.MakeDirectoryResp{}
+				if err = s.c.CDCRequest(s.log, &msgs.MakeDirectoryReq{OwnerId: ownerId, Name: dirName}, resp); err != nil {
+					return fmt.Errorf("failed to construct directory %q: %w", dirName, err)
+				}
+				ownerId = resp.Id
+			} else {
+				return fmt.Errorf("failed to lookup directory %q: %w", dirName, err)
+			}
+		} else {
+			if lookupResp.TargetId.Type() != msgs.DIRECTORY {
+				return &S3Error{Code: "InvalidRequest", Message: fmt.Sprintf("A component of the path is not a directory: %q", dirName), StatusCode: http.StatusBadRequest}
+			}
+			ownerId = lookupResp.TargetId
+		}
+	}
+
+	var inode msgs.InodeId
+	basename := path.basename()
+	if path.isDirectory {
+		resp := &msgs.MakeDirectoryResp{}
+		if err := s.c.CDCRequest(s.log, &msgs.MakeDirectoryReq{OwnerId: ownerId, Name: basename}, resp); err != nil {
+			return fmt.Errorf("failed to make directory: %w", err)
+		} else {
+			inode = resp.Id
+		}
+	} else {
+		fileResp := msgs.ConstructFileResp{}
+		if err := s.c.ShardRequest(s.log, ownerId.Shard(), &msgs.ConstructFileReq{Type: msgs.FILE}, &fileResp); err != nil {
+			return fmt.Errorf("failed to construct file: %w", err)
+		}
+		fileId := fileResp.Id
+		cookie := fileResp.Cookie
+		if err := s.c.WriteFile(s.log, s.bufPool, s.dirInfoCache, ownerId, fileId, cookie, r.Body); err != nil {
+			return fmt.Errorf("failed to write file data: %w", err)
+		}
+		linkReq := &msgs.LinkFileReq{FileId: fileId, Cookie: cookie, OwnerId: ownerId, Name: basename}
+		if err := s.c.ShardRequest(s.log, ownerId.Shard(), linkReq, &msgs.LinkFileResp{}); err != nil {
+			return fmt.Errorf("failed to link file %q: %w", path.String(), err)
+		}
+		inode = fileId
+	}
+
+	w.Header().Set("ETag", FileEtag(inode))
+	w.WriteHeader(http.StatusOK)
+	return nil
+}
+
+func (s *S3Server) handleCreateMultipartUpload(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error {
+	if r.Method != http.MethodPost {
+		return &S3Error{Code: "MethodNotAllowed", Message: "This resource only supports POST.", StatusCode: http.StatusMethodNotAllowed}
+	}
+	return &S3Error{Code: "NotImplemented", Message: "Multipart upload is not implemented.", StatusCode: http.StatusNotImplemented}
+}
+
+func (s *S3Server) handleUploadPart(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error {
+	if r.Method != http.MethodPut {
+		return &S3Error{Code: "MethodNotAllowed", Message: "This resource only supports PUT.", StatusCode: http.StatusMethodNotAllowed}
+	}
+	return &S3Error{Code: "NotImplemented", Message: "Multipart upload is not implemented.", StatusCode: http.StatusNotImplemented}
+}
+
+func (s *S3Server) handleCompleteMultipartUpload(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error {
+	if r.Method != http.MethodPost {
+		return &S3Error{Code: "MethodNotAllowed", Message: "This resource only supports POST.", StatusCode: http.StatusMethodNotAllowed}
+	}
+	var payload CompleteMultipartUpload
+	if err := xml.NewDecoder(r.Body).Decode(&payload); err != nil {
+		s.log.Info("Could not decode XML for CompleteMultipartUpload: %v", err)
+		return &S3Error{Code: "MalformedXML", Message: fmt.Sprintf("The XML you provided was not well-formed or did not validate against our published schema: %v", err), StatusCode: http.StatusBadRequest}
+	}
+	return &S3Error{Code: "NotImplemented", Message: "Multipart upload is not implemented.", StatusCode: http.StatusNotImplemented}
+}
+
+// deleteObjectLogic contains the core logic for deleting a single object.
+func (s *S3Server) deleteObjectLogic(ctx context.Context, rootId msgs.InodeId, path *objectPath) error {
+	if len(path.segments) == 0 {
+		return &S3Error{Code: "InvalidRequest", Message: "Cannot delete bucket root with object deletion API", StatusCode: http.StatusBadRequest}
+	}
+
+	dirId, dentry, err := s.lookupDirEntry(ctx, rootId, path)
+	if err != nil {
+		var s3Err *S3Error
+		if errors.As(err, &s3Err) && s3Err.Code == "NoSuchKey" {
+			s.log.Debug("deleteObjectLogic: Object %q not found, treating as success for deletion.", path.String())
+			return nil // Success from S3 perspective
+		}
+		return err
+	}
+
+	if dentry.TargetId.Type() == msgs.DIRECTORY {
+		req := &msgs.SoftUnlinkDirectoryReq{
+			OwnerId:      dirId,
+			TargetId:     dentry.TargetId,
+			Name:         path.basename(),
+			CreationTime: dentry.CreationTime,
+		}
+		if err := s.c.CDCRequest(s.log, req, &msgs.SoftUnlinkDirectoryResp{}); err != nil {
+			return fmt.Errorf("could not delete directory %q: %w", path.String(), err)
+		}
+	} else {
+		req := &msgs.SoftUnlinkFileReq{
+			OwnerId:      dirId,
+			FileId:       dentry.TargetId,
+			Name:         path.basename(),
+			CreationTime: dentry.CreationTime,
+		}
+		if err := s.c.ShardRequest(s.log, dirId.Shard(), req, &msgs.SoftUnlinkFileResp{}); err != nil {
+			return fmt.Errorf("could not delete file %q: %w", path.String(), err)
+		}
+	}
+
+	return nil
+}
+
+func (s *S3Server) handleDeleteObject(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error {
+	s.log.Debug("DeleteObject: path=%q", path.String())
+	if err := s.deleteObjectLogic(ctx, rootId, path); err != nil {
+		return err
+	}
+	w.WriteHeader(http.StatusNoContent)
+	return nil
+}
+
+// deleteResult holds the outcome of a single deletion operation.
+type deleteResult struct {
+	Key string
+	Err error
+}
+
+func (s *S3Server) handleDeleteObjects(ctx context.Context, w http.ResponseWriter, r *http.Request, bucket string, rootId msgs.InodeId, path *objectPath) error {
+	s.log.Debug("DeleteObjects in bucket %q", bucket)
+
+	if r.Method != http.MethodPost {
+		return &S3Error{Code: "MethodNotAllowed", Message: "This resource only supports POST.", StatusCode: http.StatusMethodNotAllowed}
+	}
+	if len(path.segments) != 0 {
+		return &S3Error{Code: "InvalidRequest", Message: "DeleteObjects should be called on a bucket, not an object"}
+	}
+	var payload Delete
+	if err := xml.NewDecoder(r.Body).Decode(&payload); err != nil {
+		return &S3Error{Code: "MalformedXML", Message: fmt.Sprintf("The XML you provided was not well-formed or did not validate against our published schema: %v", err), StatusCode: http.StatusBadRequest}
+	}
+
+	results := make([]deleteResult, len(payload.Objects))
+	g, gCtx := errgroup.WithContext(ctx)
+
+	for i, obj := range payload.Objects {
+		i, obj := i, obj // Capture loop variables to use in goroutine.
+		g.Go(func() error {
+			s.log.Debug("Batch deleting object: %q", obj.Key)
+			err := s.deleteObjectLogic(gCtx, rootId, parseObjectPath(obj.Key))
+			results[i] = deleteResult{Key: obj.Key, Err: err}
+			// Return nil so that one failed deletion doesn't cancel others.
+			return nil
+		})
+	}
+
+	if err := g.Wait(); err != nil {
+		return err // Likely a context cancellation
+	}
+
+	var deletedObjects []DeletedObject
+	var errorObjects []ErrorObject
+	for _, res := range results {
+		if res.Err != nil {
+			var s3Err *S3Error
+			code := "InternalError"
+			message := res.Err.Error()
+			if errors.As(res.Err, &s3Err) {
+				code = s3Err.Code
+				message = s3Err.Message
+			}
+			errorObjects = append(errorObjects, ErrorObject{Key: res.Key, Code: code, Message: message})
+		} else if !payload.Quiet {
+			deletedObjects = append(deletedObjects, DeletedObject{Key: res.Key})
+		}
+	}
+
+	response := DeleteResult{
+		Deleted: deletedObjects,
+		Error:   errorObjects,
+	}
+
+	s.writeXML(w, http.StatusOK, response)
+	return nil
+}
+
+// lookupPath is a helper to resolve a full path from the filesystem root to an InodeId.
+func lookupPath(ctx context.Context, log *lib.Logger, c *client.Client, path *objectPath) (msgs.InodeId, error) {
+	current := msgs.ROOT_DIR_INODE_ID
+	for _, segment := range path.segments {
+		lookupResp := &msgs.LookupResp{}
+		req := &msgs.LookupReq{DirId: current, Name: segment}
+		if err := c.ShardRequest(log, current.Shard(), req, lookupResp); err != nil {
+			return 0, fmt.Errorf("lookup failed for segment '%s': %w", segment, err)
+		}
+		current = lookupResp.TargetId
+	}
+	return current, nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/LICENSE.txt

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
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+
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+      other entities that control, are controlled by, or are under common
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      including but not limited to software source code, documentation
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+      transformation or translation of a Source form, including but
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+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
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+      (an example is provided in the Appendix below).
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+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
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+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

go/vendor/github.com/aws/aws-sdk-go-v2/NOTICE.txt

@@ -0,0 +1,3 @@
+AWS SDK for Go
+Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+Copyright 2014-2015 Stripe, Inc.

go/vendor/github.com/aws/aws-sdk-go-v2/aws/accountid_endpoint_mode.go

@@ -0,0 +1,18 @@
+package aws
+
+// AccountIDEndpointMode controls how a resolved AWS account ID is handled for endpoint routing.
+type AccountIDEndpointMode string
+
+const (
+	// AccountIDEndpointModeUnset indicates the AWS account ID will not be used for endpoint routing
+	AccountIDEndpointModeUnset AccountIDEndpointMode = ""
+
+	// AccountIDEndpointModePreferred indicates the AWS account ID will be used for endpoint routing if present
+	AccountIDEndpointModePreferred = "preferred"
+
+	// AccountIDEndpointModeRequired indicates an error will be returned if the AWS account ID is not resolved from identity
+	AccountIDEndpointModeRequired = "required"
+
+	// AccountIDEndpointModeDisabled indicates the AWS account ID will be ignored during endpoint routing
+	AccountIDEndpointModeDisabled = "disabled"
+)

go/vendor/github.com/aws/aws-sdk-go-v2/aws/arn/arn.go

@@ -0,0 +1,92 @@
+// Package arn provides a parser for interacting with Amazon Resource Names.
+package arn
+
+import (
+	"errors"
+	"strings"
+)
+
+const (
+	arnDelimiter = ":"
+	arnSections  = 6
+	arnPrefix    = "arn:"
+
+	// zero-indexed
+	sectionPartition = 1
+	sectionService   = 2
+	sectionRegion    = 3
+	sectionAccountID = 4
+	sectionResource  = 5
+
+	// errors
+	invalidPrefix   = "arn: invalid prefix"
+	invalidSections = "arn: not enough sections"
+)
+
+// ARN captures the individual fields of an Amazon Resource Name.
+// See http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html for more information.
+type ARN struct {
+	// The partition that the resource is in. For standard AWS regions, the partition is "aws". If you have resources in
+	// other partitions, the partition is "aws-partitionname". For example, the partition for resources in the China
+	// (Beijing) region is "aws-cn".
+	Partition string
+
+	// The service namespace that identifies the AWS product (for example, Amazon S3, IAM, or Amazon RDS). For a list of
+	// namespaces, see
+	// http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html#genref-aws-service-namespaces.
+	Service string
+
+	// The region the resource resides in. Note that the ARNs for some resources do not require a region, so this
+	// component might be omitted.
+	Region string
+
+	// The ID of the AWS account that owns the resource, without the hyphens. For example, 123456789012. Note that the
+	// ARNs for some resources don't require an account number, so this component might be omitted.
+	AccountID string
+
+	// The content of this part of the ARN varies by service. It often includes an indicator of the type of resource —
+	// for example, an IAM user or Amazon RDS database - followed by a slash (/) or a colon (:), followed by the
+	// resource name itself. Some services allows paths for resource names, as described in
+	// http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html#arns-paths.
+	Resource string
+}
+
+// Parse parses an ARN into its constituent parts.
+//
+// Some example ARNs:
+// arn:aws:elasticbeanstalk:us-east-1:123456789012:environment/My App/MyEnvironment
+// arn:aws:iam::123456789012:user/David
+// arn:aws:rds:eu-west-1:123456789012:db:mysql-db
+// arn:aws:s3:::my_corporate_bucket/exampleobject.png
+func Parse(arn string) (ARN, error) {
+	if !strings.HasPrefix(arn, arnPrefix) {
+		return ARN{}, errors.New(invalidPrefix)
+	}
+	sections := strings.SplitN(arn, arnDelimiter, arnSections)
+	if len(sections) != arnSections {
+		return ARN{}, errors.New(invalidSections)
+	}
+	return ARN{
+		Partition: sections[sectionPartition],
+		Service:   sections[sectionService],
+		Region:    sections[sectionRegion],
+		AccountID: sections[sectionAccountID],
+		Resource:  sections[sectionResource],
+	}, nil
+}
+
+// IsARN returns whether the given string is an arn
+// by looking for whether the string starts with arn:
+func IsARN(arn string) bool {
+	return strings.HasPrefix(arn, arnPrefix) && strings.Count(arn, ":") >= arnSections-1
+}
+
+// String returns the canonical representation of the ARN
+func (arn ARN) String() string {
+	return arnPrefix +
+		arn.Partition + arnDelimiter +
+		arn.Service + arnDelimiter +
+		arn.Region + arnDelimiter +
+		arn.AccountID + arnDelimiter +
+		arn.Resource
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/checksum.go

@@ -0,0 +1,33 @@
+package aws
+
+// RequestChecksumCalculation controls request checksum calculation workflow
+type RequestChecksumCalculation int
+
+const (
+	// RequestChecksumCalculationUnset is the unset value for RequestChecksumCalculation
+	RequestChecksumCalculationUnset RequestChecksumCalculation = iota
+
+	// RequestChecksumCalculationWhenSupported indicates request checksum will be calculated
+	// if the operation supports input checksums
+	RequestChecksumCalculationWhenSupported
+
+	// RequestChecksumCalculationWhenRequired indicates request checksum will be calculated
+	// if required by the operation or if user elects to set a checksum algorithm in request
+	RequestChecksumCalculationWhenRequired
+)
+
+// ResponseChecksumValidation controls response checksum validation workflow
+type ResponseChecksumValidation int
+
+const (
+	// ResponseChecksumValidationUnset is the unset value for ResponseChecksumValidation
+	ResponseChecksumValidationUnset ResponseChecksumValidation = iota
+
+	// ResponseChecksumValidationWhenSupported indicates response checksum will be validated
+	// if the operation supports output checksums
+	ResponseChecksumValidationWhenSupported
+
+	// ResponseChecksumValidationWhenRequired indicates response checksum will only
+	// be validated if the operation requires output checksum validation
+	ResponseChecksumValidationWhenRequired
+)

go/vendor/github.com/aws/aws-sdk-go-v2/aws/config.go

@@ -0,0 +1,238 @@
+package aws
+
+import (
+	"net/http"
+
+	smithybearer "github.com/aws/smithy-go/auth/bearer"
+	"github.com/aws/smithy-go/logging"
+	"github.com/aws/smithy-go/middleware"
+)
+
+// HTTPClient provides the interface to provide custom HTTPClients. Generally
+// *http.Client is sufficient for most use cases. The HTTPClient should not
+// follow 301 or 302 redirects.
+type HTTPClient interface {
+	Do(*http.Request) (*http.Response, error)
+}
+
+// A Config provides service configuration for service clients.
+type Config struct {
+	// The region to send requests to. This parameter is required and must
+	// be configured globally or on a per-client basis unless otherwise
+	// noted. A full list of regions is found in the "Regions and Endpoints"
+	// document.
+	//
+	// See http://docs.aws.amazon.com/general/latest/gr/rande.html for
+	// information on AWS regions.
+	Region string
+
+	// The credentials object to use when signing requests.
+	// Use the LoadDefaultConfig to load configuration from all the SDK's supported
+	// sources, and resolve credentials using the SDK's default credential chain.
+	Credentials CredentialsProvider
+
+	// The Bearer Authentication token provider to use for authenticating API
+	// operation calls with a Bearer Authentication token. The API clients and
+	// operation must support Bearer Authentication scheme in order for the
+	// token provider to be used. API clients created with NewFromConfig will
+	// automatically be configured with this option, if the API client support
+	// Bearer Authentication.
+	//
+	// The SDK's config.LoadDefaultConfig can automatically populate this
+	// option for external configuration options such as SSO session.
+	// https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-sso.html
+	BearerAuthTokenProvider smithybearer.TokenProvider
+
+	// The HTTP Client the SDK's API clients will use to invoke HTTP requests.
+	// The SDK defaults to a BuildableClient allowing API clients to create
+	// copies of the HTTP Client for service specific customizations.
+	//
+	// Use a (*http.Client) for custom behavior. Using a custom http.Client
+	// will prevent the SDK from modifying the HTTP client.
+	HTTPClient HTTPClient
+
+	// An endpoint resolver that can be used to provide or override an endpoint
+	// for the given service and region.
+	//
+	// See the `aws.EndpointResolver` documentation for additional usage
+	// information.
+	//
+	// Deprecated: See Config.EndpointResolverWithOptions
+	EndpointResolver EndpointResolver
+
+	// An endpoint resolver that can be used to provide or override an endpoint
+	// for the given service and region.
+	//
+	// When EndpointResolverWithOptions is specified, it will be used by a
+	// service client rather than using EndpointResolver if also specified.
+	//
+	// See the `aws.EndpointResolverWithOptions` documentation for additional
+	// usage information.
+	//
+	// Deprecated: with the release of endpoint resolution v2 in API clients,
+	// EndpointResolver and EndpointResolverWithOptions are deprecated.
+	// Providing a value for this field will likely prevent you from using
+	// newer endpoint-related service features. See API client options
+	// EndpointResolverV2 and BaseEndpoint.
+	EndpointResolverWithOptions EndpointResolverWithOptions
+
+	// RetryMaxAttempts specifies the maximum number attempts an API client
+	// will call an operation that fails with a retryable error.
+	//
+	// API Clients will only use this value to construct a retryer if the
+	// Config.Retryer member is not nil. This value will be ignored if
+	// Retryer is not nil.
+	RetryMaxAttempts int
+
+	// RetryMode specifies the retry model the API client will be created with.
+	//
+	// API Clients will only use this value to construct a retryer if the
+	// Config.Retryer member is not nil. This value will be ignored if
+	// Retryer is not nil.
+	RetryMode RetryMode
+
+	// Retryer is a function that provides a Retryer implementation. A Retryer
+	// guides how HTTP requests should be retried in case of recoverable
+	// failures. When nil the API client will use a default retryer.
+	//
+	// In general, the provider function should return a new instance of a
+	// Retryer if you are attempting to provide a consistent Retryer
+	// configuration across all clients. This will ensure that each client will
+	// be provided a new instance of the Retryer implementation, and will avoid
+	// issues such as sharing the same retry token bucket across services.
+	//
+	// If not nil, RetryMaxAttempts, and RetryMode will be ignored by API
+	// clients.
+	Retryer func() Retryer
+
+	// ConfigSources are the sources that were used to construct the Config.
+	// Allows for additional configuration to be loaded by clients.
+	ConfigSources []interface{}
+
+	// APIOptions provides the set of middleware mutations modify how the API
+	// client requests will be handled. This is useful for adding additional
+	// tracing data to a request, or changing behavior of the SDK's client.
+	APIOptions []func(*middleware.Stack) error
+
+	// The logger writer interface to write logging messages to. Defaults to
+	// standard error.
+	Logger logging.Logger
+
+	// Configures the events that will be sent to the configured logger. This
+	// can be used to configure the logging of signing, retries, request, and
+	// responses of the SDK clients.
+	//
+	// See the ClientLogMode type documentation for the complete set of logging
+	// modes and available configuration.
+	ClientLogMode ClientLogMode
+
+	// The configured DefaultsMode. If not specified, service clients will
+	// default to legacy.
+	//
+	// Supported modes are: auto, cross-region, in-region, legacy, mobile,
+	// standard
+	DefaultsMode DefaultsMode
+
+	// The RuntimeEnvironment configuration, only populated if the DefaultsMode
+	// is set to DefaultsModeAuto and is initialized by
+	// `config.LoadDefaultConfig`. You should not populate this structure
+	// programmatically, or rely on the values here within your applications.
+	RuntimeEnvironment RuntimeEnvironment
+
+	// AppId is an optional application specific identifier that can be set.
+	// When set it will be appended to the User-Agent header of every request
+	// in the form of App/{AppId}. This variable is sourced from environment
+	// variable AWS_SDK_UA_APP_ID or the shared config profile attribute sdk_ua_app_id.
+	// See https://docs.aws.amazon.com/sdkref/latest/guide/settings-reference.html for
+	// more information on environment variables and shared config settings.
+	AppID string
+
+	// BaseEndpoint is an intermediary transfer location to a service specific
+	// BaseEndpoint on a service's Options.
+	BaseEndpoint *string
+
+	// DisableRequestCompression toggles if an operation request could be
+	// compressed or not. Will be set to false by default. This variable is sourced from
+	// environment variable AWS_DISABLE_REQUEST_COMPRESSION or the shared config profile attribute
+	// disable_request_compression
+	DisableRequestCompression bool
+
+	// RequestMinCompressSizeBytes sets the inclusive min bytes of a request body that could be
+	// compressed. Will be set to 10240 by default and must be within 0 and 10485760 bytes inclusively.
+	// This variable is sourced from environment variable AWS_REQUEST_MIN_COMPRESSION_SIZE_BYTES or
+	// the shared config profile attribute request_min_compression_size_bytes
+	RequestMinCompressSizeBytes int64
+
+	// Controls how a resolved AWS account ID is handled for endpoint routing.
+	AccountIDEndpointMode AccountIDEndpointMode
+
+	// RequestChecksumCalculation determines when request checksum calculation is performed.
+	//
+	// There are two possible values for this setting:
+	//
+	// 1. RequestChecksumCalculationWhenSupported (default): The checksum is always calculated
+	//    if the operation supports it, regardless of whether the user sets an algorithm in the request.
+	//
+	// 2. RequestChecksumCalculationWhenRequired: The checksum is only calculated if the user
+	//    explicitly sets a checksum algorithm in the request.
+	//
+	// This setting is sourced from the environment variable AWS_REQUEST_CHECKSUM_CALCULATION
+	// or the shared config profile attribute "request_checksum_calculation".
+	RequestChecksumCalculation RequestChecksumCalculation
+
+	// ResponseChecksumValidation determines when response checksum validation is performed
+	//
+	// There are two possible values for this setting:
+	//
+	// 1. ResponseChecksumValidationWhenSupported (default): The checksum is always validated
+	//    if the operation supports it, regardless of whether the user sets the validation mode to ENABLED in request.
+	//
+	// 2. ResponseChecksumValidationWhenRequired: The checksum is only validated if the user
+	//    explicitly sets the validation mode to ENABLED in the request
+	// This variable is sourced from environment variable AWS_RESPONSE_CHECKSUM_VALIDATION or
+	// the shared config profile attribute "response_checksum_validation".
+	ResponseChecksumValidation ResponseChecksumValidation
+}
+
+// NewConfig returns a new Config pointer that can be chained with builder
+// methods to set multiple configuration values inline without using pointers.
+func NewConfig() *Config {
+	return &Config{}
+}
+
+// Copy will return a shallow copy of the Config object.
+func (c Config) Copy() Config {
+	cp := c
+	return cp
+}
+
+// EndpointDiscoveryEnableState indicates if endpoint discovery is
+// enabled, disabled, auto or unset state.
+//
+// Default behavior (Auto or Unset) indicates operations that require endpoint
+// discovery will use Endpoint Discovery by default. Operations that
+// optionally use Endpoint Discovery will not use Endpoint Discovery
+// unless EndpointDiscovery is explicitly enabled.
+type EndpointDiscoveryEnableState uint
+
+// Enumeration values for EndpointDiscoveryEnableState
+const (
+	// EndpointDiscoveryUnset represents EndpointDiscoveryEnableState is unset.
+	// Users do not need to use this value explicitly. The behavior for unset
+	// is the same as for EndpointDiscoveryAuto.
+	EndpointDiscoveryUnset EndpointDiscoveryEnableState = iota
+
+	// EndpointDiscoveryAuto represents an AUTO state that allows endpoint
+	// discovery only when required by the api. This is the default
+	// configuration resolved by the client if endpoint discovery is neither
+	// enabled or disabled.
+	EndpointDiscoveryAuto // default state
+
+	// EndpointDiscoveryDisabled indicates client MUST not perform endpoint
+	// discovery even when required.
+	EndpointDiscoveryDisabled
+
+	// EndpointDiscoveryEnabled indicates client MUST always perform endpoint
+	// discovery if supported for the operation.
+	EndpointDiscoveryEnabled
+)

go/vendor/github.com/aws/aws-sdk-go-v2/aws/context.go

@@ -0,0 +1,22 @@
+package aws
+
+import (
+	"context"
+	"time"
+)
+
+type suppressedContext struct {
+	context.Context
+}
+
+func (s *suppressedContext) Deadline() (deadline time.Time, ok bool) {
+	return time.Time{}, false
+}
+
+func (s *suppressedContext) Done() <-chan struct{} {
+	return nil
+}
+
+func (s *suppressedContext) Err() error {
+	return nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/credential_cache.go

@@ -0,0 +1,235 @@
+package aws
+
+import (
+	"context"
+	"fmt"
+	"sync/atomic"
+	"time"
+
+	sdkrand "github.com/aws/aws-sdk-go-v2/internal/rand"
+	"github.com/aws/aws-sdk-go-v2/internal/sync/singleflight"
+)
+
+// CredentialsCacheOptions are the options
+type CredentialsCacheOptions struct {
+
+	// ExpiryWindow will allow the credentials to trigger refreshing prior to
+	// the credentials actually expiring. This is beneficial so race conditions
+	// with expiring credentials do not cause request to fail unexpectedly
+	// due to ExpiredTokenException exceptions.
+	//
+	// An ExpiryWindow of 10s would cause calls to IsExpired() to return true
+	// 10 seconds before the credentials are actually expired. This can cause an
+	// increased number of requests to refresh the credentials to occur.
+	//
+	// If ExpiryWindow is 0 or less it will be ignored.
+	ExpiryWindow time.Duration
+
+	// ExpiryWindowJitterFrac provides a mechanism for randomizing the
+	// expiration of credentials within the configured ExpiryWindow by a random
+	// percentage. Valid values are between 0.0 and 1.0.
+	//
+	// As an example if ExpiryWindow is 60 seconds and ExpiryWindowJitterFrac
+	// is 0.5 then credentials will be set to expire between 30 to 60 seconds
+	// prior to their actual expiration time.
+	//
+	// If ExpiryWindow is 0 or less then ExpiryWindowJitterFrac is ignored.
+	// If ExpiryWindowJitterFrac is 0 then no randomization will be applied to the window.
+	// If ExpiryWindowJitterFrac < 0 the value will be treated as 0.
+	// If ExpiryWindowJitterFrac > 1 the value will be treated as 1.
+	ExpiryWindowJitterFrac float64
+}
+
+// CredentialsCache provides caching and concurrency safe credentials retrieval
+// via the provider's retrieve method.
+//
+// CredentialsCache will look for optional interfaces on the Provider to adjust
+// how the credential cache handles credentials caching.
+//
+//   - HandleFailRefreshCredentialsCacheStrategy - Allows provider to handle
+//     credential refresh failures. This could return an updated Credentials
+//     value, or attempt another means of retrieving credentials.
+//
+//   - AdjustExpiresByCredentialsCacheStrategy - Allows provider to adjust how
+//     credentials Expires is modified. This could modify how the Credentials
+//     Expires is adjusted based on the CredentialsCache ExpiryWindow option.
+//     Such as providing a floor not to reduce the Expires below.
+type CredentialsCache struct {
+	provider CredentialsProvider
+
+	options CredentialsCacheOptions
+	creds   atomic.Value
+	sf      singleflight.Group
+}
+
+// NewCredentialsCache returns a CredentialsCache that wraps provider. Provider
+// is expected to not be nil. A variadic list of one or more functions can be
+// provided to modify the CredentialsCache configuration. This allows for
+// configuration of credential expiry window and jitter.
+func NewCredentialsCache(provider CredentialsProvider, optFns ...func(options *CredentialsCacheOptions)) *CredentialsCache {
+	options := CredentialsCacheOptions{}
+
+	for _, fn := range optFns {
+		fn(&options)
+	}
+
+	if options.ExpiryWindow < 0 {
+		options.ExpiryWindow = 0
+	}
+
+	if options.ExpiryWindowJitterFrac < 0 {
+		options.ExpiryWindowJitterFrac = 0
+	} else if options.ExpiryWindowJitterFrac > 1 {
+		options.ExpiryWindowJitterFrac = 1
+	}
+
+	return &CredentialsCache{
+		provider: provider,
+		options:  options,
+	}
+}
+
+// Retrieve returns the credentials. If the credentials have already been
+// retrieved, and not expired the cached credentials will be returned. If the
+// credentials have not been retrieved yet, or expired the provider's Retrieve
+// method will be called.
+//
+// Returns and error if the provider's retrieve method returns an error.
+func (p *CredentialsCache) Retrieve(ctx context.Context) (Credentials, error) {
+	if creds, ok := p.getCreds(); ok && !creds.Expired() {
+		return creds, nil
+	}
+
+	resCh := p.sf.DoChan("", func() (interface{}, error) {
+		return p.singleRetrieve(&suppressedContext{ctx})
+	})
+	select {
+	case res := <-resCh:
+		return res.Val.(Credentials), res.Err
+	case <-ctx.Done():
+		return Credentials{}, &RequestCanceledError{Err: ctx.Err()}
+	}
+}
+
+func (p *CredentialsCache) singleRetrieve(ctx context.Context) (interface{}, error) {
+	currCreds, ok := p.getCreds()
+	if ok && !currCreds.Expired() {
+		return currCreds, nil
+	}
+
+	newCreds, err := p.provider.Retrieve(ctx)
+	if err != nil {
+		handleFailToRefresh := defaultHandleFailToRefresh
+		if cs, ok := p.provider.(HandleFailRefreshCredentialsCacheStrategy); ok {
+			handleFailToRefresh = cs.HandleFailToRefresh
+		}
+		newCreds, err = handleFailToRefresh(ctx, currCreds, err)
+		if err != nil {
+			return Credentials{}, fmt.Errorf("failed to refresh cached credentials, %w", err)
+		}
+	}
+
+	if newCreds.CanExpire && p.options.ExpiryWindow > 0 {
+		adjustExpiresBy := defaultAdjustExpiresBy
+		if cs, ok := p.provider.(AdjustExpiresByCredentialsCacheStrategy); ok {
+			adjustExpiresBy = cs.AdjustExpiresBy
+		}
+
+		randFloat64, err := sdkrand.CryptoRandFloat64()
+		if err != nil {
+			return Credentials{}, fmt.Errorf("failed to get random provider, %w", err)
+		}
+
+		var jitter time.Duration
+		if p.options.ExpiryWindowJitterFrac > 0 {
+			jitter = time.Duration(randFloat64 *
+				p.options.ExpiryWindowJitterFrac * float64(p.options.ExpiryWindow))
+		}
+
+		newCreds, err = adjustExpiresBy(newCreds, -(p.options.ExpiryWindow - jitter))
+		if err != nil {
+			return Credentials{}, fmt.Errorf("failed to adjust credentials expires, %w", err)
+		}
+	}
+
+	p.creds.Store(&newCreds)
+	return newCreds, nil
+}
+
+// getCreds returns the currently stored credentials and true. Returning false
+// if no credentials were stored.
+func (p *CredentialsCache) getCreds() (Credentials, bool) {
+	v := p.creds.Load()
+	if v == nil {
+		return Credentials{}, false
+	}
+
+	c := v.(*Credentials)
+	if c == nil || !c.HasKeys() {
+		return Credentials{}, false
+	}
+
+	return *c, true
+}
+
+// ProviderSources returns a list of where the underlying credential provider
+// has been sourced, if available. Returns empty if the provider doesn't implement
+// the interface
+func (p *CredentialsCache) ProviderSources() []CredentialSource {
+	asSource, ok := p.provider.(CredentialProviderSource)
+	if !ok {
+		return []CredentialSource{}
+	}
+	return asSource.ProviderSources()
+}
+
+// Invalidate will invalidate the cached credentials. The next call to Retrieve
+// will cause the provider's Retrieve method to be called.
+func (p *CredentialsCache) Invalidate() {
+	p.creds.Store((*Credentials)(nil))
+}
+
+// IsCredentialsProvider returns whether credential provider wrapped by CredentialsCache
+// matches the target provider type.
+func (p *CredentialsCache) IsCredentialsProvider(target CredentialsProvider) bool {
+	return IsCredentialsProvider(p.provider, target)
+}
+
+// HandleFailRefreshCredentialsCacheStrategy is an interface for
+// CredentialsCache to allow CredentialsProvider  how failed to refresh
+// credentials is handled.
+type HandleFailRefreshCredentialsCacheStrategy interface {
+	// Given the previously cached Credentials, if any, and refresh error, may
+	// returns new or modified set of Credentials, or error.
+	//
+	// Credential caches may use default implementation if nil.
+	HandleFailToRefresh(context.Context, Credentials, error) (Credentials, error)
+}
+
+// defaultHandleFailToRefresh returns the passed in error.
+func defaultHandleFailToRefresh(ctx context.Context, _ Credentials, err error) (Credentials, error) {
+	return Credentials{}, err
+}
+
+// AdjustExpiresByCredentialsCacheStrategy is an interface for CredentialCache
+// to allow CredentialsProvider to intercept adjustments to Credentials expiry
+// based on expectations and use cases of CredentialsProvider.
+//
+// Credential caches may use default implementation if nil.
+type AdjustExpiresByCredentialsCacheStrategy interface {
+	// Given a Credentials as input, applying any mutations and
+	// returning the potentially updated Credentials, or error.
+	AdjustExpiresBy(Credentials, time.Duration) (Credentials, error)
+}
+
+// defaultAdjustExpiresBy adds the duration to the passed in credentials Expires,
+// and returns the updated credentials value. If Credentials value's CanExpire
+// is false, the passed in credentials are returned unchanged.
+func defaultAdjustExpiresBy(creds Credentials, dur time.Duration) (Credentials, error) {
+	if !creds.CanExpire {
+		return creds, nil
+	}
+
+	creds.Expires = creds.Expires.Add(dur)
+	return creds, nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/credentials.go

@@ -0,0 +1,230 @@
+package aws
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/internal/sdk"
+)
+
+// AnonymousCredentials provides a sentinel CredentialsProvider that should be
+// used to instruct the SDK's signing middleware to not sign the request.
+//
+// Using `nil` credentials when configuring an API client will achieve the same
+// result. The AnonymousCredentials type allows you to configure the SDK's
+// external config loading to not attempt to source credentials from the shared
+// config or environment.
+//
+// For example you can use this CredentialsProvider with an API client's
+// Options to instruct the client not to sign a request for accessing public
+// S3 bucket objects.
+//
+// The following example demonstrates using the AnonymousCredentials to prevent
+// SDK's external config loading attempt to resolve credentials.
+//
+//	cfg, err := config.LoadDefaultConfig(context.TODO(),
+//	     config.WithCredentialsProvider(aws.AnonymousCredentials{}),
+//	)
+//	if err != nil {
+//	     log.Fatalf("failed to load config, %v", err)
+//	}
+//
+//	client := s3.NewFromConfig(cfg)
+//
+// Alternatively you can leave the API client Option's `Credential` member to
+// nil. If using the `NewFromConfig` constructor you'll need to explicitly set
+// the `Credentials` member to nil, if the external config resolved a
+// credential provider.
+//
+//	client := s3.New(s3.Options{
+//	     // Credentials defaults to a nil value.
+//	})
+//
+// This can also be configured for specific operations calls too.
+//
+//	cfg, err := config.LoadDefaultConfig(context.TODO())
+//	if err != nil {
+//	     log.Fatalf("failed to load config, %v", err)
+//	}
+//
+//	client := s3.NewFromConfig(config)
+//
+//	result, err := client.GetObject(context.TODO(), s3.GetObject{
+//	     Bucket: aws.String("example-bucket"),
+//	     Key: aws.String("example-key"),
+//	}, func(o *s3.Options) {
+//	     o.Credentials = nil
+//	     // Or
+//	     o.Credentials = aws.AnonymousCredentials{}
+//	})
+type AnonymousCredentials struct{}
+
+// Retrieve implements the CredentialsProvider interface, but will always
+// return error, and cannot be used to sign a request. The AnonymousCredentials
+// type is used as a sentinel type instructing the AWS request signing
+// middleware to not sign a request.
+func (AnonymousCredentials) Retrieve(context.Context) (Credentials, error) {
+	return Credentials{Source: "AnonymousCredentials"},
+		fmt.Errorf("the AnonymousCredentials is not a valid credential provider, and cannot be used to sign AWS requests with")
+}
+
+// CredentialSource is the source of the credential provider.
+// A provider can have multiple credential sources: For example, a provider that reads a profile, calls ECS to
+// get credentials and then assumes a role using STS will have all these as part of its provider chain.
+type CredentialSource int
+
+const (
+	// CredentialSourceUndefined is the sentinel zero value
+	CredentialSourceUndefined CredentialSource = iota
+	// CredentialSourceCode credentials resolved from code, cli parameters, session object, or client instance
+	CredentialSourceCode
+	// CredentialSourceEnvVars credentials resolved from environment variables
+	CredentialSourceEnvVars
+	// CredentialSourceEnvVarsSTSWebIDToken credentials resolved from environment variables for assuming a role with STS using a web identity token
+	CredentialSourceEnvVarsSTSWebIDToken
+	// CredentialSourceSTSAssumeRole credentials resolved from STS using AssumeRole
+	CredentialSourceSTSAssumeRole
+	// CredentialSourceSTSAssumeRoleSaml credentials resolved from STS using assume role with SAML
+	CredentialSourceSTSAssumeRoleSaml
+	// CredentialSourceSTSAssumeRoleWebID credentials resolved from STS using assume role with web identity
+	CredentialSourceSTSAssumeRoleWebID
+	// CredentialSourceSTSFederationToken credentials resolved from STS using a federation token
+	CredentialSourceSTSFederationToken
+	// CredentialSourceSTSSessionToken credentials resolved from STS using a session token 	S
+	CredentialSourceSTSSessionToken
+	// CredentialSourceProfile  credentials resolved from a config file(s) profile with static credentials
+	CredentialSourceProfile
+	// CredentialSourceProfileSourceProfile credentials resolved from a source profile in a config file(s) profile
+	CredentialSourceProfileSourceProfile
+	// CredentialSourceProfileNamedProvider credentials resolved from a named provider in a config file(s) profile (like EcsContainer)
+	CredentialSourceProfileNamedProvider
+	// CredentialSourceProfileSTSWebIDToken  credentials resolved from configuration for assuming a role with STS using web identity token in a config file(s) profile
+	CredentialSourceProfileSTSWebIDToken
+	// CredentialSourceProfileSSO credentials resolved from an SSO session in a config file(s) profile
+	CredentialSourceProfileSSO
+	// CredentialSourceSSO credentials resolved from an SSO session
+	CredentialSourceSSO
+	// CredentialSourceProfileSSOLegacy credentials resolved from an SSO session in a config file(s) profile using legacy format
+	CredentialSourceProfileSSOLegacy
+	// CredentialSourceSSOLegacy credentials resolved from an SSO session using legacy format
+	CredentialSourceSSOLegacy
+	// CredentialSourceProfileProcess credentials resolved from a process in a config file(s) profile
+	CredentialSourceProfileProcess
+	// CredentialSourceProcess credentials resolved from a process
+	CredentialSourceProcess
+	// CredentialSourceHTTP credentials resolved from an HTTP endpoint
+	CredentialSourceHTTP
+	// CredentialSourceIMDS credentials resolved from the instance metadata service (IMDS)
+	CredentialSourceIMDS
+)
+
+// A Credentials is the AWS credentials value for individual credential fields.
+type Credentials struct {
+	// AWS Access key ID
+	AccessKeyID string
+
+	// AWS Secret Access Key
+	SecretAccessKey string
+
+	// AWS Session Token
+	SessionToken string
+
+	// Source of the credentials
+	Source string
+
+	// States if the credentials can expire or not.
+	CanExpire bool
+
+	// The time the credentials will expire at. Should be ignored if CanExpire
+	// is false.
+	Expires time.Time
+
+	// The ID of the account for the credentials.
+	AccountID string
+}
+
+// Expired returns if the credentials have expired.
+func (v Credentials) Expired() bool {
+	if v.CanExpire {
+		// Calling Round(0) on the current time will truncate the monotonic
+		// reading only. Ensures credential expiry time is always based on
+		// reported wall-clock time.
+		return !v.Expires.After(sdk.NowTime().Round(0))
+	}
+
+	return false
+}
+
+// HasKeys returns if the credentials keys are set.
+func (v Credentials) HasKeys() bool {
+	return len(v.AccessKeyID) > 0 && len(v.SecretAccessKey) > 0
+}
+
+// A CredentialsProvider is the interface for any component which will provide
+// credentials Credentials. A CredentialsProvider is required to manage its own
+// Expired state, and what to be expired means.
+//
+// A credentials provider implementation can be wrapped with a CredentialCache
+// to cache the credential value retrieved. Without the cache the SDK will
+// attempt to retrieve the credentials for every request.
+type CredentialsProvider interface {
+	// Retrieve returns nil if it successfully retrieved the value.
+	// Error is returned if the value were not obtainable, or empty.
+	Retrieve(ctx context.Context) (Credentials, error)
+}
+
+// CredentialProviderSource allows any credential provider to track
+// all providers where a credential provider were sourced. For example, if the credentials came from a
+// call to a role specified in the profile, this method will give the whole breadcrumb trail
+type CredentialProviderSource interface {
+	ProviderSources() []CredentialSource
+}
+
+// CredentialsProviderFunc provides a helper wrapping a function value to
+// satisfy the CredentialsProvider interface.
+type CredentialsProviderFunc func(context.Context) (Credentials, error)
+
+// Retrieve delegates to the function value the CredentialsProviderFunc wraps.
+func (fn CredentialsProviderFunc) Retrieve(ctx context.Context) (Credentials, error) {
+	return fn(ctx)
+}
+
+type isCredentialsProvider interface {
+	IsCredentialsProvider(CredentialsProvider) bool
+}
+
+// IsCredentialsProvider returns whether the target CredentialProvider is the same type as provider when comparing the
+// implementation type.
+//
+// If provider has a method IsCredentialsProvider(CredentialsProvider) bool it will be responsible for validating
+// whether target matches the credential provider type.
+//
+// When comparing the CredentialProvider implementations provider and target for equality, the following rules are used:
+//
+//	If provider is of type T and target is of type V, true if type *T is the same as type *V, otherwise false
+//	If provider is of type *T and target is of type V, true if type *T is the same as type *V, otherwise false
+//	If provider is of type T and target is of type *V, true if type *T is the same as type *V, otherwise false
+//	If provider is of type *T and target is of type *V,true if type *T is the same as type *V, otherwise false
+func IsCredentialsProvider(provider, target CredentialsProvider) bool {
+	if target == nil || provider == nil {
+		return provider == target
+	}
+
+	if x, ok := provider.(isCredentialsProvider); ok {
+		return x.IsCredentialsProvider(target)
+	}
+
+	targetType := reflect.TypeOf(target)
+	if targetType.Kind() != reflect.Ptr {
+		targetType = reflect.PtrTo(targetType)
+	}
+
+	providerType := reflect.TypeOf(provider)
+	if providerType.Kind() != reflect.Ptr {
+		providerType = reflect.PtrTo(providerType)
+	}
+
+	return targetType.AssignableTo(providerType)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/defaults/auto.go

@@ -0,0 +1,38 @@
+package defaults
+
+import (
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"runtime"
+	"strings"
+)
+
+var getGOOS = func() string {
+	return runtime.GOOS
+}
+
+// ResolveDefaultsModeAuto is used to determine the effective aws.DefaultsMode when the mode
+// is set to aws.DefaultsModeAuto.
+func ResolveDefaultsModeAuto(region string, environment aws.RuntimeEnvironment) aws.DefaultsMode {
+	goos := getGOOS()
+	if goos == "android" || goos == "ios" {
+		return aws.DefaultsModeMobile
+	}
+
+	var currentRegion string
+	if len(environment.EnvironmentIdentifier) > 0 {
+		currentRegion = environment.Region
+	}
+
+	if len(currentRegion) == 0 && len(environment.EC2InstanceMetadataRegion) > 0 {
+		currentRegion = environment.EC2InstanceMetadataRegion
+	}
+
+	if len(region) > 0 && len(currentRegion) > 0 {
+		if strings.EqualFold(region, currentRegion) {
+			return aws.DefaultsModeInRegion
+		}
+		return aws.DefaultsModeCrossRegion
+	}
+
+	return aws.DefaultsModeStandard
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/defaults/configuration.go

@@ -0,0 +1,43 @@
+package defaults
+
+import (
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+)
+
+// Configuration is the set of SDK configuration options that are determined based
+// on the configured DefaultsMode.
+type Configuration struct {
+	// RetryMode is the configuration's default retry mode API clients should
+	// use for constructing a Retryer.
+	RetryMode aws.RetryMode
+
+	// ConnectTimeout is the maximum amount of time a dial will wait for
+	// a connect to complete.
+	//
+	// See https://pkg.go.dev/net#Dialer.Timeout
+	ConnectTimeout *time.Duration
+
+	// TLSNegotiationTimeout specifies the maximum amount of time waiting to
+	// wait for a TLS handshake.
+	//
+	// See https://pkg.go.dev/net/http#Transport.TLSHandshakeTimeout
+	TLSNegotiationTimeout *time.Duration
+}
+
+// GetConnectTimeout returns the ConnectTimeout value, returns false if the value is not set.
+func (c *Configuration) GetConnectTimeout() (time.Duration, bool) {
+	if c.ConnectTimeout == nil {
+		return 0, false
+	}
+	return *c.ConnectTimeout, true
+}
+
+// GetTLSNegotiationTimeout returns the TLSNegotiationTimeout value, returns false if the value is not set.
+func (c *Configuration) GetTLSNegotiationTimeout() (time.Duration, bool) {
+	if c.TLSNegotiationTimeout == nil {
+		return 0, false
+	}
+	return *c.TLSNegotiationTimeout, true
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/defaults/defaults.go

@@ -0,0 +1,50 @@
+// Code generated by github.com/aws/aws-sdk-go-v2/internal/codegen/cmd/defaultsconfig. DO NOT EDIT.
+
+package defaults
+
+import (
+	"fmt"
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"time"
+)
+
+// GetModeConfiguration returns the default Configuration descriptor for the given mode.
+//
+// Supports the following modes: cross-region, in-region, mobile, standard
+func GetModeConfiguration(mode aws.DefaultsMode) (Configuration, error) {
+	var mv aws.DefaultsMode
+	mv.SetFromString(string(mode))
+
+	switch mv {
+	case aws.DefaultsModeCrossRegion:
+		settings := Configuration{
+			ConnectTimeout:        aws.Duration(3100 * time.Millisecond),
+			RetryMode:             aws.RetryMode("standard"),
+			TLSNegotiationTimeout: aws.Duration(3100 * time.Millisecond),
+		}
+		return settings, nil
+	case aws.DefaultsModeInRegion:
+		settings := Configuration{
+			ConnectTimeout:        aws.Duration(1100 * time.Millisecond),
+			RetryMode:             aws.RetryMode("standard"),
+			TLSNegotiationTimeout: aws.Duration(1100 * time.Millisecond),
+		}
+		return settings, nil
+	case aws.DefaultsModeMobile:
+		settings := Configuration{
+			ConnectTimeout:        aws.Duration(30000 * time.Millisecond),
+			RetryMode:             aws.RetryMode("standard"),
+			TLSNegotiationTimeout: aws.Duration(30000 * time.Millisecond),
+		}
+		return settings, nil
+	case aws.DefaultsModeStandard:
+		settings := Configuration{
+			ConnectTimeout:        aws.Duration(3100 * time.Millisecond),
+			RetryMode:             aws.RetryMode("standard"),
+			TLSNegotiationTimeout: aws.Duration(3100 * time.Millisecond),
+		}
+		return settings, nil
+	default:
+		return Configuration{}, fmt.Errorf("unsupported defaults mode: %v", mode)
+	}
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/defaults/doc.go

@@ -0,0 +1,2 @@
+// Package defaults provides recommended configuration values for AWS SDKs and CLIs.
+package defaults

go/vendor/github.com/aws/aws-sdk-go-v2/aws/defaultsmode.go

@@ -0,0 +1,95 @@
+// Code generated by github.com/aws/aws-sdk-go-v2/internal/codegen/cmd/defaultsmode. DO NOT EDIT.
+
+package aws
+
+import (
+	"strings"
+)
+
+// DefaultsMode is the SDK defaults mode setting.
+type DefaultsMode string
+
+// The DefaultsMode constants.
+const (
+	// DefaultsModeAuto is an experimental mode that builds on the standard mode.
+	// The SDK will attempt to discover the execution environment to determine the
+	// appropriate settings automatically.
+	//
+	// Note that the auto detection is heuristics-based and does not guarantee 100%
+	// accuracy. STANDARD mode will be used if the execution environment cannot
+	// be determined. The auto detection might query EC2 Instance Metadata service
+	// (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html),
+	// which might introduce latency. Therefore we recommend choosing an explicit
+	// defaults_mode instead if startup latency is critical to your application
+	DefaultsModeAuto DefaultsMode = "auto"
+
+	// DefaultsModeCrossRegion builds on the standard mode and includes optimization
+	// tailored for applications which call AWS services in a different region
+	//
+	// Note that the default values vended from this mode might change as best practices
+	// may evolve. As a result, it is encouraged to perform tests when upgrading
+	// the SDK
+	DefaultsModeCrossRegion DefaultsMode = "cross-region"
+
+	// DefaultsModeInRegion builds on the standard mode and includes optimization
+	// tailored for applications which call AWS services from within the same AWS
+	// region
+	//
+	// Note that the default values vended from this mode might change as best practices
+	// may evolve. As a result, it is encouraged to perform tests when upgrading
+	// the SDK
+	DefaultsModeInRegion DefaultsMode = "in-region"
+
+	// DefaultsModeLegacy provides default settings that vary per SDK and were used
+	// prior to establishment of defaults_mode
+	DefaultsModeLegacy DefaultsMode = "legacy"
+
+	// DefaultsModeMobile builds on the standard mode and includes optimization
+	// tailored for mobile applications
+	//
+	// Note that the default values vended from this mode might change as best practices
+	// may evolve. As a result, it is encouraged to perform tests when upgrading
+	// the SDK
+	DefaultsModeMobile DefaultsMode = "mobile"
+
+	// DefaultsModeStandard provides the latest recommended default values that
+	// should be safe to run in most scenarios
+	//
+	// Note that the default values vended from this mode might change as best practices
+	// may evolve. As a result, it is encouraged to perform tests when upgrading
+	// the SDK
+	DefaultsModeStandard DefaultsMode = "standard"
+)
+
+// SetFromString sets the DefaultsMode value to one of the pre-defined constants that matches
+// the provided string when compared using EqualFold. If the value does not match a known
+// constant it will be set to as-is and the function will return false. As a special case, if the
+// provided value is a zero-length string, the mode will be set to LegacyDefaultsMode.
+func (d *DefaultsMode) SetFromString(v string) (ok bool) {
+	switch {
+	case strings.EqualFold(v, string(DefaultsModeAuto)):
+		*d = DefaultsModeAuto
+		ok = true
+	case strings.EqualFold(v, string(DefaultsModeCrossRegion)):
+		*d = DefaultsModeCrossRegion
+		ok = true
+	case strings.EqualFold(v, string(DefaultsModeInRegion)):
+		*d = DefaultsModeInRegion
+		ok = true
+	case strings.EqualFold(v, string(DefaultsModeLegacy)):
+		*d = DefaultsModeLegacy
+		ok = true
+	case strings.EqualFold(v, string(DefaultsModeMobile)):
+		*d = DefaultsModeMobile
+		ok = true
+	case strings.EqualFold(v, string(DefaultsModeStandard)):
+		*d = DefaultsModeStandard
+		ok = true
+	case len(v) == 0:
+		*d = DefaultsModeLegacy
+		ok = true
+	default:
+		*d = DefaultsMode(v)
+	}
+	return ok
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/doc.go

@@ -0,0 +1,62 @@
+// Package aws provides the core SDK's utilities and shared types. Use this package's
+// utilities to simplify setting and reading API operations parameters.
+//
+// # Value and Pointer Conversion Utilities
+//
+// This package includes a helper conversion utility for each scalar type the SDK's
+// API use. These utilities make getting a pointer of the scalar, and dereferencing
+// a pointer easier.
+//
+// Each conversion utility comes in two forms. Value to Pointer and Pointer to Value.
+// The Pointer to value will safely dereference the pointer and return its value.
+// If the pointer was nil, the scalar's zero value will be returned.
+//
+// The value to pointer functions will be named after the scalar type. So get a
+// *string from a string value use the "String" function. This makes it easy to
+// to get pointer of a literal string value, because getting the address of a
+// literal requires assigning the value to a variable first.
+//
+//	var strPtr *string
+//
+//	// Without the SDK's conversion functions
+//	str := "my string"
+//	strPtr = &str
+//
+//	// With the SDK's conversion functions
+//	strPtr = aws.String("my string")
+//
+//	// Convert *string to string value
+//	str = aws.ToString(strPtr)
+//
+// In addition to scalars the aws package also includes conversion utilities for
+// map and slice for commonly types used in API parameters. The map and slice
+// conversion functions use similar naming pattern as the scalar conversion
+// functions.
+//
+//	var strPtrs []*string
+//	var strs []string = []string{"Go", "Gophers", "Go"}
+//
+//	// Convert []string to []*string
+//	strPtrs = aws.StringSlice(strs)
+//
+//	// Convert []*string to []string
+//	strs = aws.ToStringSlice(strPtrs)
+//
+// # SDK Default HTTP Client
+//
+// The SDK will use the http.DefaultClient if a HTTP client is not provided to
+// the SDK's Session, or service client constructor. This means that if the
+// http.DefaultClient is modified by other components of your application the
+// modifications will be picked up by the SDK as well.
+//
+// In some cases this might be intended, but it is a better practice to create
+// a custom HTTP Client to share explicitly through your application. You can
+// configure the SDK to use the custom HTTP Client by setting the HTTPClient
+// value of the SDK's Config type when creating a Session or service client.
+package aws
+
+// generate.go uses a build tag of "ignore", go run doesn't need to specify
+// this because go run ignores all build flags when running a go file directly.
+//go:generate go run -tags codegen generate.go
+//go:generate go run -tags codegen logging_generate.go
+//go:generate gofmt -w -s .

go/vendor/github.com/aws/aws-sdk-go-v2/aws/endpoints.go

@@ -0,0 +1,247 @@
+package aws
+
+import (
+	"fmt"
+)
+
+// DualStackEndpointState is a constant to describe the dual-stack endpoint resolution behavior.
+type DualStackEndpointState uint
+
+const (
+	// DualStackEndpointStateUnset is the default value behavior for dual-stack endpoint resolution.
+	DualStackEndpointStateUnset DualStackEndpointState = iota
+
+	// DualStackEndpointStateEnabled enables dual-stack endpoint resolution for service endpoints.
+	DualStackEndpointStateEnabled
+
+	// DualStackEndpointStateDisabled disables dual-stack endpoint resolution for endpoints.
+	DualStackEndpointStateDisabled
+)
+
+// GetUseDualStackEndpoint takes a service's EndpointResolverOptions and returns the UseDualStackEndpoint value.
+// Returns boolean false if the provided options does not have a method to retrieve the DualStackEndpointState.
+func GetUseDualStackEndpoint(options ...interface{}) (value DualStackEndpointState, found bool) {
+	type iface interface {
+		GetUseDualStackEndpoint() DualStackEndpointState
+	}
+	for _, option := range options {
+		if i, ok := option.(iface); ok {
+			value = i.GetUseDualStackEndpoint()
+			found = true
+			break
+		}
+	}
+	return value, found
+}
+
+// FIPSEndpointState is a constant to describe the FIPS endpoint resolution behavior.
+type FIPSEndpointState uint
+
+const (
+	// FIPSEndpointStateUnset is the default value behavior for FIPS endpoint resolution.
+	FIPSEndpointStateUnset FIPSEndpointState = iota
+
+	// FIPSEndpointStateEnabled enables FIPS endpoint resolution for service endpoints.
+	FIPSEndpointStateEnabled
+
+	// FIPSEndpointStateDisabled disables FIPS endpoint resolution for endpoints.
+	FIPSEndpointStateDisabled
+)
+
+// GetUseFIPSEndpoint takes a service's EndpointResolverOptions and returns the UseDualStackEndpoint value.
+// Returns boolean false if the provided options does not have a method to retrieve the DualStackEndpointState.
+func GetUseFIPSEndpoint(options ...interface{}) (value FIPSEndpointState, found bool) {
+	type iface interface {
+		GetUseFIPSEndpoint() FIPSEndpointState
+	}
+	for _, option := range options {
+		if i, ok := option.(iface); ok {
+			value = i.GetUseFIPSEndpoint()
+			found = true
+			break
+		}
+	}
+	return value, found
+}
+
+// Endpoint represents the endpoint a service client should make API operation
+// calls to.
+//
+// The SDK will automatically resolve these endpoints per API client using an
+// internal endpoint resolvers. If you'd like to provide custom endpoint
+// resolving behavior you can implement the EndpointResolver interface.
+//
+// Deprecated: This structure was used with the global [EndpointResolver]
+// interface, which has been deprecated in favor of service-specific endpoint
+// resolution. See the deprecation docs on that interface for more information.
+type Endpoint struct {
+	// The base URL endpoint the SDK API clients will use to make API calls to.
+	// The SDK will suffix URI path and query elements to this endpoint.
+	URL string
+
+	// Specifies if the endpoint's hostname can be modified by the SDK's API
+	// client.
+	//
+	// If the hostname is mutable the SDK API clients may modify any part of
+	// the hostname based on the requirements of the API, (e.g. adding, or
+	// removing content in the hostname). Such as, Amazon S3 API client
+	// prefixing "bucketname" to the hostname, or changing the
+	// hostname service name component from "s3." to "s3-accesspoint.dualstack."
+	// for the dualstack endpoint of an S3 Accesspoint resource.
+	//
+	// Care should be taken when providing a custom endpoint for an API. If the
+	// endpoint hostname is mutable, and the client cannot modify the endpoint
+	// correctly, the operation call will most likely fail, or have undefined
+	// behavior.
+	//
+	// If hostname is immutable, the SDK API clients will not modify the
+	// hostname of the URL. This may cause the API client not to function
+	// correctly if the API requires the operation specific hostname values
+	// to be used by the client.
+	//
+	// This flag does not modify the API client's behavior if this endpoint
+	// will be used instead of Endpoint Discovery, or if the endpoint will be
+	// used to perform Endpoint Discovery. That behavior is configured via the
+	// API Client's Options.
+	HostnameImmutable bool
+
+	// The AWS partition the endpoint belongs to.
+	PartitionID string
+
+	// The service name that should be used for signing the requests to the
+	// endpoint.
+	SigningName string
+
+	// The region that should be used for signing the request to the endpoint.
+	SigningRegion string
+
+	// The signing method that should be used for signing the requests to the
+	// endpoint.
+	SigningMethod string
+
+	// The source of the Endpoint. By default, this will be EndpointSourceServiceMetadata.
+	// When providing a custom endpoint, you should set the source as EndpointSourceCustom.
+	// If source is not provided when providing a custom endpoint, the SDK may not
+	// perform required host mutations correctly. Source should be used along with
+	// HostnameImmutable property as per the usage requirement.
+	Source EndpointSource
+}
+
+// EndpointSource is the endpoint source type.
+//
+// Deprecated: The global [Endpoint] structure is deprecated.
+type EndpointSource int
+
+const (
+	// EndpointSourceServiceMetadata denotes service modeled endpoint metadata is used as Endpoint Source.
+	EndpointSourceServiceMetadata EndpointSource = iota
+
+	// EndpointSourceCustom denotes endpoint is a custom endpoint. This source should be used when
+	// user provides a custom endpoint to be used by the SDK.
+	EndpointSourceCustom
+)
+
+// EndpointNotFoundError is a sentinel error to indicate that the
+// EndpointResolver implementation was unable to resolve an endpoint for the
+// given service and region. Resolvers should use this to indicate that an API
+// client should fallback and attempt to use it's internal default resolver to
+// resolve the endpoint.
+type EndpointNotFoundError struct {
+	Err error
+}
+
+// Error is the error message.
+func (e *EndpointNotFoundError) Error() string {
+	return fmt.Sprintf("endpoint not found, %v", e.Err)
+}
+
+// Unwrap returns the underlying error.
+func (e *EndpointNotFoundError) Unwrap() error {
+	return e.Err
+}
+
+// EndpointResolver is an endpoint resolver that can be used to provide or
+// override an endpoint for the given service and region. API clients will
+// attempt to use the EndpointResolver first to resolve an endpoint if
+// available. If the EndpointResolver returns an EndpointNotFoundError error,
+// API clients will fallback to attempting to resolve the endpoint using its
+// internal default endpoint resolver.
+//
+// Deprecated: The global endpoint resolution interface is deprecated. The API
+// for endpoint resolution is now unique to each service and is set via the
+// EndpointResolverV2 field on service client options. Setting a value for
+// EndpointResolver on aws.Config or service client options will prevent you
+// from using any endpoint-related service features released after the
+// introduction of EndpointResolverV2. You may also encounter broken or
+// unexpected behavior when using the old global interface with services that
+// use many endpoint-related customizations such as S3.
+type EndpointResolver interface {
+	ResolveEndpoint(service, region string) (Endpoint, error)
+}
+
+// EndpointResolverFunc wraps a function to satisfy the EndpointResolver interface.
+//
+// Deprecated: The global endpoint resolution interface is deprecated. See
+// deprecation docs on [EndpointResolver].
+type EndpointResolverFunc func(service, region string) (Endpoint, error)
+
+// ResolveEndpoint calls the wrapped function and returns the results.
+func (e EndpointResolverFunc) ResolveEndpoint(service, region string) (Endpoint, error) {
+	return e(service, region)
+}
+
+// EndpointResolverWithOptions is an endpoint resolver that can be used to provide or
+// override an endpoint for the given service, region, and the service client's EndpointOptions. API clients will
+// attempt to use the EndpointResolverWithOptions first to resolve an endpoint if
+// available. If the EndpointResolverWithOptions returns an EndpointNotFoundError error,
+// API clients will fallback to attempting to resolve the endpoint using its
+// internal default endpoint resolver.
+//
+// Deprecated: The global endpoint resolution interface is deprecated. See
+// deprecation docs on [EndpointResolver].
+type EndpointResolverWithOptions interface {
+	ResolveEndpoint(service, region string, options ...interface{}) (Endpoint, error)
+}
+
+// EndpointResolverWithOptionsFunc wraps a function to satisfy the EndpointResolverWithOptions interface.
+//
+// Deprecated: The global endpoint resolution interface is deprecated. See
+// deprecation docs on [EndpointResolver].
+type EndpointResolverWithOptionsFunc func(service, region string, options ...interface{}) (Endpoint, error)
+
+// ResolveEndpoint calls the wrapped function and returns the results.
+func (e EndpointResolverWithOptionsFunc) ResolveEndpoint(service, region string, options ...interface{}) (Endpoint, error) {
+	return e(service, region, options...)
+}
+
+// GetDisableHTTPS takes a service's EndpointResolverOptions and returns the DisableHTTPS value.
+// Returns boolean false if the provided options does not have a method to retrieve the DisableHTTPS.
+func GetDisableHTTPS(options ...interface{}) (value bool, found bool) {
+	type iface interface {
+		GetDisableHTTPS() bool
+	}
+	for _, option := range options {
+		if i, ok := option.(iface); ok {
+			value = i.GetDisableHTTPS()
+			found = true
+			break
+		}
+	}
+	return value, found
+}
+
+// GetResolvedRegion takes a service's EndpointResolverOptions and returns the ResolvedRegion value.
+// Returns boolean false if the provided options does not have a method to retrieve the ResolvedRegion.
+func GetResolvedRegion(options ...interface{}) (value string, found bool) {
+	type iface interface {
+		GetResolvedRegion() string
+	}
+	for _, option := range options {
+		if i, ok := option.(iface); ok {
+			value = i.GetResolvedRegion()
+			found = true
+			break
+		}
+	}
+	return value, found
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/errors.go

@@ -0,0 +1,9 @@
+package aws
+
+// MissingRegionError is an error that is returned if region configuration
+// value was not found.
+type MissingRegionError struct{}
+
+func (*MissingRegionError) Error() string {
+	return "an AWS region is required, but was not found"
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/from_ptr.go

@@ -0,0 +1,365 @@
+// Code generated by aws/generate.go DO NOT EDIT.
+
+package aws
+
+import (
+	"github.com/aws/smithy-go/ptr"
+	"time"
+)
+
+// ToBool returns bool value dereferenced if the passed
+// in pointer was not nil. Returns a bool zero value if the
+// pointer was nil.
+func ToBool(p *bool) (v bool) {
+	return ptr.ToBool(p)
+}
+
+// ToBoolSlice returns a slice of bool values, that are
+// dereferenced if the passed in pointer was not nil. Returns a bool
+// zero value if the pointer was nil.
+func ToBoolSlice(vs []*bool) []bool {
+	return ptr.ToBoolSlice(vs)
+}
+
+// ToBoolMap returns a map of bool values, that are
+// dereferenced if the passed in pointer was not nil. The bool
+// zero value is used if the pointer was nil.
+func ToBoolMap(vs map[string]*bool) map[string]bool {
+	return ptr.ToBoolMap(vs)
+}
+
+// ToByte returns byte value dereferenced if the passed
+// in pointer was not nil. Returns a byte zero value if the
+// pointer was nil.
+func ToByte(p *byte) (v byte) {
+	return ptr.ToByte(p)
+}
+
+// ToByteSlice returns a slice of byte values, that are
+// dereferenced if the passed in pointer was not nil. Returns a byte
+// zero value if the pointer was nil.
+func ToByteSlice(vs []*byte) []byte {
+	return ptr.ToByteSlice(vs)
+}
+
+// ToByteMap returns a map of byte values, that are
+// dereferenced if the passed in pointer was not nil. The byte
+// zero value is used if the pointer was nil.
+func ToByteMap(vs map[string]*byte) map[string]byte {
+	return ptr.ToByteMap(vs)
+}
+
+// ToString returns string value dereferenced if the passed
+// in pointer was not nil. Returns a string zero value if the
+// pointer was nil.
+func ToString(p *string) (v string) {
+	return ptr.ToString(p)
+}
+
+// ToStringSlice returns a slice of string values, that are
+// dereferenced if the passed in pointer was not nil. Returns a string
+// zero value if the pointer was nil.
+func ToStringSlice(vs []*string) []string {
+	return ptr.ToStringSlice(vs)
+}
+
+// ToStringMap returns a map of string values, that are
+// dereferenced if the passed in pointer was not nil. The string
+// zero value is used if the pointer was nil.
+func ToStringMap(vs map[string]*string) map[string]string {
+	return ptr.ToStringMap(vs)
+}
+
+// ToInt returns int value dereferenced if the passed
+// in pointer was not nil. Returns a int zero value if the
+// pointer was nil.
+func ToInt(p *int) (v int) {
+	return ptr.ToInt(p)
+}
+
+// ToIntSlice returns a slice of int values, that are
+// dereferenced if the passed in pointer was not nil. Returns a int
+// zero value if the pointer was nil.
+func ToIntSlice(vs []*int) []int {
+	return ptr.ToIntSlice(vs)
+}
+
+// ToIntMap returns a map of int values, that are
+// dereferenced if the passed in pointer was not nil. The int
+// zero value is used if the pointer was nil.
+func ToIntMap(vs map[string]*int) map[string]int {
+	return ptr.ToIntMap(vs)
+}
+
+// ToInt8 returns int8 value dereferenced if the passed
+// in pointer was not nil. Returns a int8 zero value if the
+// pointer was nil.
+func ToInt8(p *int8) (v int8) {
+	return ptr.ToInt8(p)
+}
+
+// ToInt8Slice returns a slice of int8 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a int8
+// zero value if the pointer was nil.
+func ToInt8Slice(vs []*int8) []int8 {
+	return ptr.ToInt8Slice(vs)
+}
+
+// ToInt8Map returns a map of int8 values, that are
+// dereferenced if the passed in pointer was not nil. The int8
+// zero value is used if the pointer was nil.
+func ToInt8Map(vs map[string]*int8) map[string]int8 {
+	return ptr.ToInt8Map(vs)
+}
+
+// ToInt16 returns int16 value dereferenced if the passed
+// in pointer was not nil. Returns a int16 zero value if the
+// pointer was nil.
+func ToInt16(p *int16) (v int16) {
+	return ptr.ToInt16(p)
+}
+
+// ToInt16Slice returns a slice of int16 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a int16
+// zero value if the pointer was nil.
+func ToInt16Slice(vs []*int16) []int16 {
+	return ptr.ToInt16Slice(vs)
+}
+
+// ToInt16Map returns a map of int16 values, that are
+// dereferenced if the passed in pointer was not nil. The int16
+// zero value is used if the pointer was nil.
+func ToInt16Map(vs map[string]*int16) map[string]int16 {
+	return ptr.ToInt16Map(vs)
+}
+
+// ToInt32 returns int32 value dereferenced if the passed
+// in pointer was not nil. Returns a int32 zero value if the
+// pointer was nil.
+func ToInt32(p *int32) (v int32) {
+	return ptr.ToInt32(p)
+}
+
+// ToInt32Slice returns a slice of int32 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a int32
+// zero value if the pointer was nil.
+func ToInt32Slice(vs []*int32) []int32 {
+	return ptr.ToInt32Slice(vs)
+}
+
+// ToInt32Map returns a map of int32 values, that are
+// dereferenced if the passed in pointer was not nil. The int32
+// zero value is used if the pointer was nil.
+func ToInt32Map(vs map[string]*int32) map[string]int32 {
+	return ptr.ToInt32Map(vs)
+}
+
+// ToInt64 returns int64 value dereferenced if the passed
+// in pointer was not nil. Returns a int64 zero value if the
+// pointer was nil.
+func ToInt64(p *int64) (v int64) {
+	return ptr.ToInt64(p)
+}
+
+// ToInt64Slice returns a slice of int64 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a int64
+// zero value if the pointer was nil.
+func ToInt64Slice(vs []*int64) []int64 {
+	return ptr.ToInt64Slice(vs)
+}
+
+// ToInt64Map returns a map of int64 values, that are
+// dereferenced if the passed in pointer was not nil. The int64
+// zero value is used if the pointer was nil.
+func ToInt64Map(vs map[string]*int64) map[string]int64 {
+	return ptr.ToInt64Map(vs)
+}
+
+// ToUint returns uint value dereferenced if the passed
+// in pointer was not nil. Returns a uint zero value if the
+// pointer was nil.
+func ToUint(p *uint) (v uint) {
+	return ptr.ToUint(p)
+}
+
+// ToUintSlice returns a slice of uint values, that are
+// dereferenced if the passed in pointer was not nil. Returns a uint
+// zero value if the pointer was nil.
+func ToUintSlice(vs []*uint) []uint {
+	return ptr.ToUintSlice(vs)
+}
+
+// ToUintMap returns a map of uint values, that are
+// dereferenced if the passed in pointer was not nil. The uint
+// zero value is used if the pointer was nil.
+func ToUintMap(vs map[string]*uint) map[string]uint {
+	return ptr.ToUintMap(vs)
+}
+
+// ToUint8 returns uint8 value dereferenced if the passed
+// in pointer was not nil. Returns a uint8 zero value if the
+// pointer was nil.
+func ToUint8(p *uint8) (v uint8) {
+	return ptr.ToUint8(p)
+}
+
+// ToUint8Slice returns a slice of uint8 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a uint8
+// zero value if the pointer was nil.
+func ToUint8Slice(vs []*uint8) []uint8 {
+	return ptr.ToUint8Slice(vs)
+}
+
+// ToUint8Map returns a map of uint8 values, that are
+// dereferenced if the passed in pointer was not nil. The uint8
+// zero value is used if the pointer was nil.
+func ToUint8Map(vs map[string]*uint8) map[string]uint8 {
+	return ptr.ToUint8Map(vs)
+}
+
+// ToUint16 returns uint16 value dereferenced if the passed
+// in pointer was not nil. Returns a uint16 zero value if the
+// pointer was nil.
+func ToUint16(p *uint16) (v uint16) {
+	return ptr.ToUint16(p)
+}
+
+// ToUint16Slice returns a slice of uint16 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a uint16
+// zero value if the pointer was nil.
+func ToUint16Slice(vs []*uint16) []uint16 {
+	return ptr.ToUint16Slice(vs)
+}
+
+// ToUint16Map returns a map of uint16 values, that are
+// dereferenced if the passed in pointer was not nil. The uint16
+// zero value is used if the pointer was nil.
+func ToUint16Map(vs map[string]*uint16) map[string]uint16 {
+	return ptr.ToUint16Map(vs)
+}
+
+// ToUint32 returns uint32 value dereferenced if the passed
+// in pointer was not nil. Returns a uint32 zero value if the
+// pointer was nil.
+func ToUint32(p *uint32) (v uint32) {
+	return ptr.ToUint32(p)
+}
+
+// ToUint32Slice returns a slice of uint32 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a uint32
+// zero value if the pointer was nil.
+func ToUint32Slice(vs []*uint32) []uint32 {
+	return ptr.ToUint32Slice(vs)
+}
+
+// ToUint32Map returns a map of uint32 values, that are
+// dereferenced if the passed in pointer was not nil. The uint32
+// zero value is used if the pointer was nil.
+func ToUint32Map(vs map[string]*uint32) map[string]uint32 {
+	return ptr.ToUint32Map(vs)
+}
+
+// ToUint64 returns uint64 value dereferenced if the passed
+// in pointer was not nil. Returns a uint64 zero value if the
+// pointer was nil.
+func ToUint64(p *uint64) (v uint64) {
+	return ptr.ToUint64(p)
+}
+
+// ToUint64Slice returns a slice of uint64 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a uint64
+// zero value if the pointer was nil.
+func ToUint64Slice(vs []*uint64) []uint64 {
+	return ptr.ToUint64Slice(vs)
+}
+
+// ToUint64Map returns a map of uint64 values, that are
+// dereferenced if the passed in pointer was not nil. The uint64
+// zero value is used if the pointer was nil.
+func ToUint64Map(vs map[string]*uint64) map[string]uint64 {
+	return ptr.ToUint64Map(vs)
+}
+
+// ToFloat32 returns float32 value dereferenced if the passed
+// in pointer was not nil. Returns a float32 zero value if the
+// pointer was nil.
+func ToFloat32(p *float32) (v float32) {
+	return ptr.ToFloat32(p)
+}
+
+// ToFloat32Slice returns a slice of float32 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a float32
+// zero value if the pointer was nil.
+func ToFloat32Slice(vs []*float32) []float32 {
+	return ptr.ToFloat32Slice(vs)
+}
+
+// ToFloat32Map returns a map of float32 values, that are
+// dereferenced if the passed in pointer was not nil. The float32
+// zero value is used if the pointer was nil.
+func ToFloat32Map(vs map[string]*float32) map[string]float32 {
+	return ptr.ToFloat32Map(vs)
+}
+
+// ToFloat64 returns float64 value dereferenced if the passed
+// in pointer was not nil. Returns a float64 zero value if the
+// pointer was nil.
+func ToFloat64(p *float64) (v float64) {
+	return ptr.ToFloat64(p)
+}
+
+// ToFloat64Slice returns a slice of float64 values, that are
+// dereferenced if the passed in pointer was not nil. Returns a float64
+// zero value if the pointer was nil.
+func ToFloat64Slice(vs []*float64) []float64 {
+	return ptr.ToFloat64Slice(vs)
+}
+
+// ToFloat64Map returns a map of float64 values, that are
+// dereferenced if the passed in pointer was not nil. The float64
+// zero value is used if the pointer was nil.
+func ToFloat64Map(vs map[string]*float64) map[string]float64 {
+	return ptr.ToFloat64Map(vs)
+}
+
+// ToTime returns time.Time value dereferenced if the passed
+// in pointer was not nil. Returns a time.Time zero value if the
+// pointer was nil.
+func ToTime(p *time.Time) (v time.Time) {
+	return ptr.ToTime(p)
+}
+
+// ToTimeSlice returns a slice of time.Time values, that are
+// dereferenced if the passed in pointer was not nil. Returns a time.Time
+// zero value if the pointer was nil.
+func ToTimeSlice(vs []*time.Time) []time.Time {
+	return ptr.ToTimeSlice(vs)
+}
+
+// ToTimeMap returns a map of time.Time values, that are
+// dereferenced if the passed in pointer was not nil. The time.Time
+// zero value is used if the pointer was nil.
+func ToTimeMap(vs map[string]*time.Time) map[string]time.Time {
+	return ptr.ToTimeMap(vs)
+}
+
+// ToDuration returns time.Duration value dereferenced if the passed
+// in pointer was not nil. Returns a time.Duration zero value if the
+// pointer was nil.
+func ToDuration(p *time.Duration) (v time.Duration) {
+	return ptr.ToDuration(p)
+}
+
+// ToDurationSlice returns a slice of time.Duration values, that are
+// dereferenced if the passed in pointer was not nil. Returns a time.Duration
+// zero value if the pointer was nil.
+func ToDurationSlice(vs []*time.Duration) []time.Duration {
+	return ptr.ToDurationSlice(vs)
+}
+
+// ToDurationMap returns a map of time.Duration values, that are
+// dereferenced if the passed in pointer was not nil. The time.Duration
+// zero value is used if the pointer was nil.
+func ToDurationMap(vs map[string]*time.Duration) map[string]time.Duration {
+	return ptr.ToDurationMap(vs)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/go_module_metadata.go

@@ -0,0 +1,6 @@
+// Code generated by internal/repotools/cmd/updatemodulemeta DO NOT EDIT.
+
+package aws
+
+// goModuleVersion is the tagged release for this module
+const goModuleVersion = "1.36.4"

go/vendor/github.com/aws/aws-sdk-go-v2/aws/logging.go

@@ -0,0 +1,119 @@
+// Code generated by aws/logging_generate.go DO NOT EDIT.
+
+package aws
+
+// ClientLogMode represents the logging mode of SDK clients. The client logging mode is a bit-field where
+// each bit is a flag that describes the logging behavior for one or more client components.
+// The entire 64-bit group is reserved for later expansion by the SDK.
+//
+// Example: Setting ClientLogMode to enable logging of retries and requests
+//
+//	clientLogMode := aws.LogRetries | aws.LogRequest
+//
+// Example: Adding an additional log mode to an existing ClientLogMode value
+//
+//	clientLogMode |= aws.LogResponse
+type ClientLogMode uint64
+
+// Supported ClientLogMode bits that can be configured to toggle logging of specific SDK events.
+const (
+	LogSigning ClientLogMode = 1 << (64 - 1 - iota)
+	LogRetries
+	LogRequest
+	LogRequestWithBody
+	LogResponse
+	LogResponseWithBody
+	LogDeprecatedUsage
+	LogRequestEventMessage
+	LogResponseEventMessage
+)
+
+// IsSigning returns whether the Signing logging mode bit is set
+func (m ClientLogMode) IsSigning() bool {
+	return m&LogSigning != 0
+}
+
+// IsRetries returns whether the Retries logging mode bit is set
+func (m ClientLogMode) IsRetries() bool {
+	return m&LogRetries != 0
+}
+
+// IsRequest returns whether the Request logging mode bit is set
+func (m ClientLogMode) IsRequest() bool {
+	return m&LogRequest != 0
+}
+
+// IsRequestWithBody returns whether the RequestWithBody logging mode bit is set
+func (m ClientLogMode) IsRequestWithBody() bool {
+	return m&LogRequestWithBody != 0
+}
+
+// IsResponse returns whether the Response logging mode bit is set
+func (m ClientLogMode) IsResponse() bool {
+	return m&LogResponse != 0
+}
+
+// IsResponseWithBody returns whether the ResponseWithBody logging mode bit is set
+func (m ClientLogMode) IsResponseWithBody() bool {
+	return m&LogResponseWithBody != 0
+}
+
+// IsDeprecatedUsage returns whether the DeprecatedUsage logging mode bit is set
+func (m ClientLogMode) IsDeprecatedUsage() bool {
+	return m&LogDeprecatedUsage != 0
+}
+
+// IsRequestEventMessage returns whether the RequestEventMessage logging mode bit is set
+func (m ClientLogMode) IsRequestEventMessage() bool {
+	return m&LogRequestEventMessage != 0
+}
+
+// IsResponseEventMessage returns whether the ResponseEventMessage logging mode bit is set
+func (m ClientLogMode) IsResponseEventMessage() bool {
+	return m&LogResponseEventMessage != 0
+}
+
+// ClearSigning clears the Signing logging mode bit
+func (m *ClientLogMode) ClearSigning() {
+	*m &^= LogSigning
+}
+
+// ClearRetries clears the Retries logging mode bit
+func (m *ClientLogMode) ClearRetries() {
+	*m &^= LogRetries
+}
+
+// ClearRequest clears the Request logging mode bit
+func (m *ClientLogMode) ClearRequest() {
+	*m &^= LogRequest
+}
+
+// ClearRequestWithBody clears the RequestWithBody logging mode bit
+func (m *ClientLogMode) ClearRequestWithBody() {
+	*m &^= LogRequestWithBody
+}
+
+// ClearResponse clears the Response logging mode bit
+func (m *ClientLogMode) ClearResponse() {
+	*m &^= LogResponse
+}
+
+// ClearResponseWithBody clears the ResponseWithBody logging mode bit
+func (m *ClientLogMode) ClearResponseWithBody() {
+	*m &^= LogResponseWithBody
+}
+
+// ClearDeprecatedUsage clears the DeprecatedUsage logging mode bit
+func (m *ClientLogMode) ClearDeprecatedUsage() {
+	*m &^= LogDeprecatedUsage
+}
+
+// ClearRequestEventMessage clears the RequestEventMessage logging mode bit
+func (m *ClientLogMode) ClearRequestEventMessage() {
+	*m &^= LogRequestEventMessage
+}
+
+// ClearResponseEventMessage clears the ResponseEventMessage logging mode bit
+func (m *ClientLogMode) ClearResponseEventMessage() {
+	*m &^= LogResponseEventMessage
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/logging_generate.go

@@ -0,0 +1,95 @@
+//go:build clientlogmode
+// +build clientlogmode
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"strings"
+	"text/template"
+)
+
+var config = struct {
+	ModeBits []string
+}{
+	// Items should be appended only to keep bit-flag positions stable
+	ModeBits: []string{
+		"Signing",
+		"Retries",
+		"Request",
+		"RequestWithBody",
+		"Response",
+		"ResponseWithBody",
+		"DeprecatedUsage",
+		"RequestEventMessage",
+		"ResponseEventMessage",
+	},
+}
+
+func bitName(name string) string {
+	return strings.ToUpper(name[:1]) + name[1:]
+}
+
+var tmpl = template.Must(template.New("ClientLogMode").Funcs(map[string]interface{}{
+	"symbolName": func(name string) string {
+		return "Log" + bitName(name)
+	},
+	"bitName": bitName,
+}).Parse(`// Code generated by aws/logging_generate.go DO NOT EDIT.
+
+package aws
+
+// ClientLogMode represents the logging mode of SDK clients. The client logging mode is a bit-field where
+// each bit is a flag that describes the logging behavior for one or more client components.
+// The entire 64-bit group is reserved for later expansion by the SDK.
+//
+// Example: Setting ClientLogMode to enable logging of retries and requests
+//  clientLogMode := aws.LogRetries | aws.LogRequest
+//
+// Example: Adding an additional log mode to an existing ClientLogMode value
+//  clientLogMode |= aws.LogResponse
+type ClientLogMode uint64
+
+// Supported ClientLogMode bits that can be configured to toggle logging of specific SDK events.
+const (
+{{- range $index, $field := .ModeBits }}
+	{{ (symbolName $field) }}{{- if (eq 0 $index) }} ClientLogMode = 1 << (64 - 1 - iota){{- end }}
+{{- end }}
+)
+{{ range $_, $field := .ModeBits }}
+// Is{{- bitName $field }} returns whether the {{ bitName $field }} logging mode bit is set
+func (m ClientLogMode) Is{{- bitName $field }}() bool {
+	return m&{{- (symbolName $field) }} != 0
+}
+{{ end }}
+{{- range $_, $field := .ModeBits }}
+// Clear{{- bitName $field }} clears the {{ bitName $field }} logging mode bit
+func (m *ClientLogMode) Clear{{- bitName $field }}() {
+	*m &^= {{ (symbolName $field) }}
+}
+{{ end -}}
+`))
+
+func main() {
+	uniqueBitFields := make(map[string]struct{})
+
+	for _, bitName := range config.ModeBits {
+		if _, ok := uniqueBitFields[strings.ToLower(bitName)]; ok {
+			panic(fmt.Sprintf("duplicate bit field: %s", bitName))
+		}
+		uniqueBitFields[bitName] = struct{}{}
+	}
+
+	file, err := os.Create("logging.go")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer file.Close()
+
+	err = tmpl.Execute(file, config)
+	if err != nil {
+		log.Fatal(err)
+	}
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/metadata.go

@@ -0,0 +1,213 @@
+package middleware
+
+import (
+	"context"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+
+	"github.com/aws/smithy-go/middleware"
+)
+
+// RegisterServiceMetadata registers metadata about the service and operation into the middleware context
+// so that it is available at runtime for other middleware to introspect.
+type RegisterServiceMetadata struct {
+	ServiceID     string
+	SigningName   string
+	Region        string
+	OperationName string
+}
+
+// ID returns the middleware identifier.
+func (s *RegisterServiceMetadata) ID() string {
+	return "RegisterServiceMetadata"
+}
+
+// HandleInitialize registers service metadata information into the middleware context, allowing for introspection.
+func (s RegisterServiceMetadata) HandleInitialize(
+	ctx context.Context, in middleware.InitializeInput, next middleware.InitializeHandler,
+) (out middleware.InitializeOutput, metadata middleware.Metadata, err error) {
+	if len(s.ServiceID) > 0 {
+		ctx = SetServiceID(ctx, s.ServiceID)
+	}
+	if len(s.SigningName) > 0 {
+		ctx = SetSigningName(ctx, s.SigningName)
+	}
+	if len(s.Region) > 0 {
+		ctx = setRegion(ctx, s.Region)
+	}
+	if len(s.OperationName) > 0 {
+		ctx = setOperationName(ctx, s.OperationName)
+	}
+	return next.HandleInitialize(ctx, in)
+}
+
+// service metadata keys for storing and lookup of runtime stack information.
+type (
+	serviceIDKey               struct{}
+	signingNameKey             struct{}
+	signingRegionKey           struct{}
+	regionKey                  struct{}
+	operationNameKey           struct{}
+	partitionIDKey             struct{}
+	requiresLegacyEndpointsKey struct{}
+)
+
+// GetServiceID retrieves the service id from the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func GetServiceID(ctx context.Context) (v string) {
+	v, _ = middleware.GetStackValue(ctx, serviceIDKey{}).(string)
+	return v
+}
+
+// GetSigningName retrieves the service signing name from the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+//
+// Deprecated: This value is unstable. The resolved signing name is available
+// in the signer properties object passed to the signer.
+func GetSigningName(ctx context.Context) (v string) {
+	v, _ = middleware.GetStackValue(ctx, signingNameKey{}).(string)
+	return v
+}
+
+// GetSigningRegion retrieves the region from the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+//
+// Deprecated: This value is unstable. The resolved signing region is available
+// in the signer properties object passed to the signer.
+func GetSigningRegion(ctx context.Context) (v string) {
+	v, _ = middleware.GetStackValue(ctx, signingRegionKey{}).(string)
+	return v
+}
+
+// GetRegion retrieves the endpoint region from the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func GetRegion(ctx context.Context) (v string) {
+	v, _ = middleware.GetStackValue(ctx, regionKey{}).(string)
+	return v
+}
+
+// GetOperationName retrieves the service operation metadata from the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func GetOperationName(ctx context.Context) (v string) {
+	v, _ = middleware.GetStackValue(ctx, operationNameKey{}).(string)
+	return v
+}
+
+// GetPartitionID retrieves the endpoint partition id from the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func GetPartitionID(ctx context.Context) string {
+	v, _ := middleware.GetStackValue(ctx, partitionIDKey{}).(string)
+	return v
+}
+
+// GetRequiresLegacyEndpoints the flag used to indicate if legacy endpoint
+// customizations need to be executed.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func GetRequiresLegacyEndpoints(ctx context.Context) bool {
+	v, _ := middleware.GetStackValue(ctx, requiresLegacyEndpointsKey{}).(bool)
+	return v
+}
+
+// SetRequiresLegacyEndpoints set or modifies the flag indicated that
+// legacy endpoint customizations are needed.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func SetRequiresLegacyEndpoints(ctx context.Context, value bool) context.Context {
+	return middleware.WithStackValue(ctx, requiresLegacyEndpointsKey{}, value)
+}
+
+// SetSigningName set or modifies the sigv4 or sigv4a signing name on the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+//
+// Deprecated: This value is unstable. Use WithSigV4SigningName client option
+// funcs instead.
+func SetSigningName(ctx context.Context, value string) context.Context {
+	return middleware.WithStackValue(ctx, signingNameKey{}, value)
+}
+
+// SetSigningRegion sets or modifies the region on the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+//
+// Deprecated: This value is unstable. Use WithSigV4SigningRegion client option
+// funcs instead.
+func SetSigningRegion(ctx context.Context, value string) context.Context {
+	return middleware.WithStackValue(ctx, signingRegionKey{}, value)
+}
+
+// SetServiceID sets the service id on the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func SetServiceID(ctx context.Context, value string) context.Context {
+	return middleware.WithStackValue(ctx, serviceIDKey{}, value)
+}
+
+// setRegion sets the endpoint region on the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func setRegion(ctx context.Context, value string) context.Context {
+	return middleware.WithStackValue(ctx, regionKey{}, value)
+}
+
+// setOperationName sets the service operation on the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func setOperationName(ctx context.Context, value string) context.Context {
+	return middleware.WithStackValue(ctx, operationNameKey{}, value)
+}
+
+// SetPartitionID sets the partition id of a resolved region on the context
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func SetPartitionID(ctx context.Context, value string) context.Context {
+	return middleware.WithStackValue(ctx, partitionIDKey{}, value)
+}
+
+// EndpointSource key
+type endpointSourceKey struct{}
+
+// GetEndpointSource returns an endpoint source if set on context
+func GetEndpointSource(ctx context.Context) (v aws.EndpointSource) {
+	v, _ = middleware.GetStackValue(ctx, endpointSourceKey{}).(aws.EndpointSource)
+	return v
+}
+
+// SetEndpointSource sets endpoint source on context
+func SetEndpointSource(ctx context.Context, value aws.EndpointSource) context.Context {
+	return middleware.WithStackValue(ctx, endpointSourceKey{}, value)
+}
+
+type signingCredentialsKey struct{}
+
+// GetSigningCredentials returns the credentials that were used for signing if set on context.
+func GetSigningCredentials(ctx context.Context) (v aws.Credentials) {
+	v, _ = middleware.GetStackValue(ctx, signingCredentialsKey{}).(aws.Credentials)
+	return v
+}
+
+// SetSigningCredentials sets the credentails used for signing on the context.
+func SetSigningCredentials(ctx context.Context, value aws.Credentials) context.Context {
+	return middleware.WithStackValue(ctx, signingCredentialsKey{}, value)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/middleware.go

@@ -0,0 +1,168 @@
+package middleware
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/internal/rand"
+	"github.com/aws/aws-sdk-go-v2/internal/sdk"
+	"github.com/aws/smithy-go/logging"
+	"github.com/aws/smithy-go/middleware"
+	smithyrand "github.com/aws/smithy-go/rand"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+)
+
+// ClientRequestID is a Smithy BuildMiddleware that will generate a unique ID for logical API operation
+// invocation.
+type ClientRequestID struct{}
+
+// ID the identifier for the ClientRequestID
+func (r *ClientRequestID) ID() string {
+	return "ClientRequestID"
+}
+
+// HandleBuild attaches a unique operation invocation id for the operation to the request
+func (r ClientRequestID) HandleBuild(ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler) (
+	out middleware.BuildOutput, metadata middleware.Metadata, err error,
+) {
+	req, ok := in.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, fmt.Errorf("unknown transport type %T", req)
+	}
+
+	invocationID, err := smithyrand.NewUUID(rand.Reader).GetUUID()
+	if err != nil {
+		return out, metadata, err
+	}
+
+	const invocationIDHeader = "Amz-Sdk-Invocation-Id"
+	req.Header[invocationIDHeader] = append(req.Header[invocationIDHeader][:0], invocationID)
+
+	return next.HandleBuild(ctx, in)
+}
+
+// RecordResponseTiming records the response timing for the SDK client requests.
+type RecordResponseTiming struct{}
+
+// ID is the middleware identifier
+func (a *RecordResponseTiming) ID() string {
+	return "RecordResponseTiming"
+}
+
+// HandleDeserialize calculates response metadata and clock skew
+func (a RecordResponseTiming) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
+	out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
+) {
+	out, metadata, err = next.HandleDeserialize(ctx, in)
+	responseAt := sdk.NowTime()
+	setResponseAt(&metadata, responseAt)
+
+	var serverTime time.Time
+
+	switch resp := out.RawResponse.(type) {
+	case *smithyhttp.Response:
+		respDateHeader := resp.Header.Get("Date")
+		if len(respDateHeader) == 0 {
+			break
+		}
+		var parseErr error
+		serverTime, parseErr = smithyhttp.ParseTime(respDateHeader)
+		if parseErr != nil {
+			logger := middleware.GetLogger(ctx)
+			logger.Logf(logging.Warn, "failed to parse response Date header value, got %v",
+				parseErr.Error())
+			break
+		}
+		setServerTime(&metadata, serverTime)
+	}
+
+	if !serverTime.IsZero() {
+		attemptSkew := serverTime.Sub(responseAt)
+		setAttemptSkew(&metadata, attemptSkew)
+	}
+
+	return out, metadata, err
+}
+
+type responseAtKey struct{}
+
+// GetResponseAt returns the time response was received at.
+func GetResponseAt(metadata middleware.Metadata) (v time.Time, ok bool) {
+	v, ok = metadata.Get(responseAtKey{}).(time.Time)
+	return v, ok
+}
+
+// setResponseAt sets the response time on the metadata.
+func setResponseAt(metadata *middleware.Metadata, v time.Time) {
+	metadata.Set(responseAtKey{}, v)
+}
+
+type serverTimeKey struct{}
+
+// GetServerTime returns the server time for response.
+func GetServerTime(metadata middleware.Metadata) (v time.Time, ok bool) {
+	v, ok = metadata.Get(serverTimeKey{}).(time.Time)
+	return v, ok
+}
+
+// setServerTime sets the server time on the metadata.
+func setServerTime(metadata *middleware.Metadata, v time.Time) {
+	metadata.Set(serverTimeKey{}, v)
+}
+
+type attemptSkewKey struct{}
+
+// GetAttemptSkew returns Attempt clock skew for response from metadata.
+func GetAttemptSkew(metadata middleware.Metadata) (v time.Duration, ok bool) {
+	v, ok = metadata.Get(attemptSkewKey{}).(time.Duration)
+	return v, ok
+}
+
+// setAttemptSkew sets the attempt clock skew on the metadata.
+func setAttemptSkew(metadata *middleware.Metadata, v time.Duration) {
+	metadata.Set(attemptSkewKey{}, v)
+}
+
+// AddClientRequestIDMiddleware adds ClientRequestID to the middleware stack
+func AddClientRequestIDMiddleware(stack *middleware.Stack) error {
+	return stack.Build.Add(&ClientRequestID{}, middleware.After)
+}
+
+// AddRecordResponseTiming adds RecordResponseTiming middleware to the
+// middleware stack.
+func AddRecordResponseTiming(stack *middleware.Stack) error {
+	return stack.Deserialize.Add(&RecordResponseTiming{}, middleware.After)
+}
+
+// rawResponseKey is the accessor key used to store and access the
+// raw response within the response metadata.
+type rawResponseKey struct{}
+
+// AddRawResponse middleware adds raw response on to the metadata
+type AddRawResponse struct{}
+
+// ID the identifier for the ClientRequestID
+func (m *AddRawResponse) ID() string {
+	return "AddRawResponseToMetadata"
+}
+
+// HandleDeserialize adds raw response on the middleware metadata
+func (m AddRawResponse) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
+	out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
+) {
+	out, metadata, err = next.HandleDeserialize(ctx, in)
+	metadata.Set(rawResponseKey{}, out.RawResponse)
+	return out, metadata, err
+}
+
+// AddRawResponseToMetadata adds middleware to the middleware stack that
+// store raw response on to the metadata.
+func AddRawResponseToMetadata(stack *middleware.Stack) error {
+	return stack.Deserialize.Add(&AddRawResponse{}, middleware.Before)
+}
+
+// GetRawResponse returns raw response set on metadata
+func GetRawResponse(metadata middleware.Metadata) interface{} {
+	return metadata.Get(rawResponseKey{})
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/osname.go

@@ -0,0 +1,24 @@
+//go:build go1.16
+// +build go1.16
+
+package middleware
+
+import "runtime"
+
+func getNormalizedOSName() (os string) {
+	switch runtime.GOOS {
+	case "android":
+		os = "android"
+	case "linux":
+		os = "linux"
+	case "windows":
+		os = "windows"
+	case "darwin":
+		os = "macos"
+	case "ios":
+		os = "ios"
+	default:
+		os = "other"
+	}
+	return os
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/osname_go115.go

@@ -0,0 +1,24 @@
+//go:build !go1.16
+// +build !go1.16
+
+package middleware
+
+import "runtime"
+
+func getNormalizedOSName() (os string) {
+	switch runtime.GOOS {
+	case "android":
+		os = "android"
+	case "linux":
+		os = "linux"
+	case "windows":
+		os = "windows"
+	case "darwin":
+		// Due to Apple M1 we can't distinguish between macOS and iOS when GOOS/GOARCH is darwin/amd64
+		// For now declare this as "other" until we have a better detection mechanism.
+		fallthrough
+	default:
+		os = "other"
+	}
+	return os
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/recursion_detection.go

@@ -0,0 +1,94 @@
+package middleware
+
+import (
+	"context"
+	"fmt"
+	"github.com/aws/smithy-go/middleware"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+	"os"
+)
+
+const envAwsLambdaFunctionName = "AWS_LAMBDA_FUNCTION_NAME"
+const envAmznTraceID = "_X_AMZN_TRACE_ID"
+const amznTraceIDHeader = "X-Amzn-Trace-Id"
+
+// AddRecursionDetection adds recursionDetection to the middleware stack
+func AddRecursionDetection(stack *middleware.Stack) error {
+	return stack.Build.Add(&RecursionDetection{}, middleware.After)
+}
+
+// RecursionDetection detects Lambda environment and sets its X-Ray trace ID to request header if absent
+// to avoid recursion invocation in Lambda
+type RecursionDetection struct{}
+
+// ID returns the middleware identifier
+func (m *RecursionDetection) ID() string {
+	return "RecursionDetection"
+}
+
+// HandleBuild detects Lambda environment and adds its trace ID to request header if absent
+func (m *RecursionDetection) HandleBuild(
+	ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler,
+) (
+	out middleware.BuildOutput, metadata middleware.Metadata, err error,
+) {
+	req, ok := in.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, fmt.Errorf("unknown request type %T", req)
+	}
+
+	_, hasLambdaEnv := os.LookupEnv(envAwsLambdaFunctionName)
+	xAmznTraceID, hasTraceID := os.LookupEnv(envAmznTraceID)
+	value := req.Header.Get(amznTraceIDHeader)
+	// only set the X-Amzn-Trace-Id header when it is not set initially, the
+	// current environment is Lambda and the _X_AMZN_TRACE_ID env variable exists
+	if value != "" || !hasLambdaEnv || !hasTraceID {
+		return next.HandleBuild(ctx, in)
+	}
+
+	req.Header.Set(amznTraceIDHeader, percentEncode(xAmznTraceID))
+	return next.HandleBuild(ctx, in)
+}
+
+func percentEncode(s string) string {
+	upperhex := "0123456789ABCDEF"
+	hexCount := 0
+	for i := 0; i < len(s); i++ {
+		c := s[i]
+		if shouldEncode(c) {
+			hexCount++
+		}
+	}
+
+	if hexCount == 0 {
+		return s
+	}
+
+	required := len(s) + 2*hexCount
+	t := make([]byte, required)
+	j := 0
+	for i := 0; i < len(s); i++ {
+		if c := s[i]; shouldEncode(c) {
+			t[j] = '%'
+			t[j+1] = upperhex[c>>4]
+			t[j+2] = upperhex[c&15]
+			j += 3
+		} else {
+			t[j] = c
+			j++
+		}
+	}
+	return string(t)
+}
+
+func shouldEncode(c byte) bool {
+	if 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || '0' <= c && c <= '9' {
+		return false
+	}
+	switch c {
+	case '-', '=', ';', ':', '+', '&', '[', ']', '{', '}', '"', '\'', ',':
+		return false
+	default:
+		return true
+	}
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/request_id.go

@@ -0,0 +1,27 @@
+package middleware
+
+import (
+	"github.com/aws/smithy-go/middleware"
+)
+
+// requestIDKey is used to retrieve request id from response metadata
+type requestIDKey struct{}
+
+// SetRequestIDMetadata sets the provided request id over middleware metadata
+func SetRequestIDMetadata(metadata *middleware.Metadata, id string) {
+	metadata.Set(requestIDKey{}, id)
+}
+
+// GetRequestIDMetadata retrieves the request id from middleware metadata
+// returns string and bool indicating value of request id, whether request id was set.
+func GetRequestIDMetadata(metadata middleware.Metadata) (string, bool) {
+	if !metadata.Has(requestIDKey{}) {
+		return "", false
+	}
+
+	v, ok := metadata.Get(requestIDKey{}).(string)
+	if !ok {
+		return "", true
+	}
+	return v, true
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/request_id_retriever.go

@@ -0,0 +1,57 @@
+package middleware
+
+import (
+	"context"
+
+	"github.com/aws/smithy-go/middleware"
+	"github.com/aws/smithy-go/tracing"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+)
+
+// AddRequestIDRetrieverMiddleware adds request id retriever middleware
+func AddRequestIDRetrieverMiddleware(stack *middleware.Stack) error {
+	// add error wrapper middleware before operation deserializers so that it can wrap the error response
+	// returned by operation deserializers
+	return stack.Deserialize.Insert(&RequestIDRetriever{}, "OperationDeserializer", middleware.Before)
+}
+
+// RequestIDRetriever middleware captures the AWS service request ID from the
+// raw response.
+type RequestIDRetriever struct {
+}
+
+// ID returns the middleware identifier
+func (m *RequestIDRetriever) ID() string {
+	return "RequestIDRetriever"
+}
+
+// HandleDeserialize pulls the AWS request ID from the response, storing it in
+// operation metadata.
+func (m *RequestIDRetriever) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
+	out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
+) {
+	out, metadata, err = next.HandleDeserialize(ctx, in)
+
+	resp, ok := out.RawResponse.(*smithyhttp.Response)
+	if !ok {
+		// No raw response to wrap with.
+		return out, metadata, err
+	}
+
+	// Different header which can map to request id
+	requestIDHeaderList := []string{"X-Amzn-Requestid", "X-Amz-RequestId"}
+
+	for _, h := range requestIDHeaderList {
+		// check for headers known to contain Request id
+		if v := resp.Header.Get(h); len(v) != 0 {
+			// set reqID on metadata for successful responses.
+			SetRequestIDMetadata(&metadata, v)
+
+			span, _ := tracing.GetSpan(ctx)
+			span.SetProperty("aws.request_id", v)
+			break
+		}
+	}
+
+	return out, metadata, err
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/user_agent.go

@@ -0,0 +1,391 @@
+package middleware
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"runtime"
+	"sort"
+	"strings"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/smithy-go/middleware"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+)
+
+var languageVersion = strings.TrimPrefix(runtime.Version(), "go")
+
+// SDKAgentKeyType is the metadata type to add to the SDK agent string
+type SDKAgentKeyType int
+
+// The set of valid SDKAgentKeyType constants. If an unknown value is assigned for SDKAgentKeyType it will
+// be mapped to AdditionalMetadata.
+const (
+	_ SDKAgentKeyType = iota
+	APIMetadata
+	OperatingSystemMetadata
+	LanguageMetadata
+	EnvironmentMetadata
+	FeatureMetadata
+	ConfigMetadata
+	FrameworkMetadata
+	AdditionalMetadata
+	ApplicationIdentifier
+	FeatureMetadata2
+)
+
+// Hardcoded value to specify which version of the user agent we're using
+const uaMetadata = "ua/2.1"
+
+func (k SDKAgentKeyType) string() string {
+	switch k {
+	case APIMetadata:
+		return "api"
+	case OperatingSystemMetadata:
+		return "os"
+	case LanguageMetadata:
+		return "lang"
+	case EnvironmentMetadata:
+		return "exec-env"
+	case FeatureMetadata:
+		return "ft"
+	case ConfigMetadata:
+		return "cfg"
+	case FrameworkMetadata:
+		return "lib"
+	case ApplicationIdentifier:
+		return "app"
+	case FeatureMetadata2:
+		return "m"
+	case AdditionalMetadata:
+		fallthrough
+	default:
+		return "md"
+	}
+}
+
+const execEnvVar = `AWS_EXECUTION_ENV`
+
+var validChars = map[rune]bool{
+	'!': true, '#': true, '$': true, '%': true, '&': true, '\'': true, '*': true, '+': true,
+	'-': true, '.': true, '^': true, '_': true, '`': true, '|': true, '~': true,
+}
+
+// UserAgentFeature enumerates tracked SDK features.
+type UserAgentFeature string
+
+// Enumerates UserAgentFeature.
+const (
+	UserAgentFeatureResourceModel UserAgentFeature = "A" // n/a (we don't generate separate resource types)
+
+	UserAgentFeatureWaiter    = "B"
+	UserAgentFeaturePaginator = "C"
+
+	UserAgentFeatureRetryModeLegacy   = "D" // n/a (equivalent to standard)
+	UserAgentFeatureRetryModeStandard = "E"
+	UserAgentFeatureRetryModeAdaptive = "F"
+
+	UserAgentFeatureS3Transfer      = "G"
+	UserAgentFeatureS3CryptoV1N     = "H" // n/a (crypto client is external)
+	UserAgentFeatureS3CryptoV2      = "I" // n/a
+	UserAgentFeatureS3ExpressBucket = "J"
+	UserAgentFeatureS3AccessGrants  = "K" // not yet implemented
+
+	UserAgentFeatureGZIPRequestCompression = "L"
+
+	UserAgentFeatureProtocolRPCV2CBOR = "M"
+
+	UserAgentFeatureAccountIDEndpoint      = "O" // DO NOT IMPLEMENT: rules output is not currently defined. SDKs should not parse endpoints for feature information.
+	UserAgentFeatureAccountIDModePreferred = "P"
+	UserAgentFeatureAccountIDModeDisabled  = "Q"
+	UserAgentFeatureAccountIDModeRequired  = "R"
+
+	UserAgentFeatureRequestChecksumCRC32          = "U"
+	UserAgentFeatureRequestChecksumCRC32C         = "V"
+	UserAgentFeatureRequestChecksumCRC64          = "W"
+	UserAgentFeatureRequestChecksumSHA1           = "X"
+	UserAgentFeatureRequestChecksumSHA256         = "Y"
+	UserAgentFeatureRequestChecksumWhenSupported  = "Z"
+	UserAgentFeatureRequestChecksumWhenRequired   = "a"
+	UserAgentFeatureResponseChecksumWhenSupported = "b"
+	UserAgentFeatureResponseChecksumWhenRequired  = "c"
+
+	UserAgentFeatureDynamoDBUserAgent = "d" // not yet implemented
+
+	UserAgentFeatureCredentialsCode                 = "e"
+	UserAgentFeatureCredentialsJvmSystemProperties  = "f" // n/a (this is not a JVM sdk)
+	UserAgentFeatureCredentialsEnvVars              = "g"
+	UserAgentFeatureCredentialsEnvVarsStsWebIDToken = "h"
+	UserAgentFeatureCredentialsStsAssumeRole        = "i"
+	UserAgentFeatureCredentialsStsAssumeRoleSaml    = "j" // not yet implemented
+	UserAgentFeatureCredentialsStsAssumeRoleWebID   = "k"
+	UserAgentFeatureCredentialsStsFederationToken   = "l" // not yet implemented
+	UserAgentFeatureCredentialsStsSessionToken      = "m" // not yet implemented
+	UserAgentFeatureCredentialsProfile              = "n"
+	UserAgentFeatureCredentialsProfileSourceProfile = "o"
+	UserAgentFeatureCredentialsProfileNamedProvider = "p"
+	UserAgentFeatureCredentialsProfileStsWebIDToken = "q"
+	UserAgentFeatureCredentialsProfileSso           = "r"
+	UserAgentFeatureCredentialsSso                  = "s"
+	UserAgentFeatureCredentialsProfileSsoLegacy     = "t"
+	UserAgentFeatureCredentialsSsoLegacy            = "u"
+	UserAgentFeatureCredentialsProfileProcess       = "v"
+	UserAgentFeatureCredentialsProcess              = "w"
+	UserAgentFeatureCredentialsBoto2ConfigFile      = "x" // n/a (this is not boto/Python)
+	UserAgentFeatureCredentialsAwsSdkStore          = "y" // n/a (this is used by .NET based sdk)
+	UserAgentFeatureCredentialsHTTP                 = "z"
+	UserAgentFeatureCredentialsIMDS                 = "0"
+)
+
+var credentialSourceToFeature = map[aws.CredentialSource]UserAgentFeature{
+	aws.CredentialSourceCode:                 UserAgentFeatureCredentialsCode,
+	aws.CredentialSourceEnvVars:              UserAgentFeatureCredentialsEnvVars,
+	aws.CredentialSourceEnvVarsSTSWebIDToken: UserAgentFeatureCredentialsEnvVarsStsWebIDToken,
+	aws.CredentialSourceSTSAssumeRole:        UserAgentFeatureCredentialsStsAssumeRole,
+	aws.CredentialSourceSTSAssumeRoleSaml:    UserAgentFeatureCredentialsStsAssumeRoleSaml,
+	aws.CredentialSourceSTSAssumeRoleWebID:   UserAgentFeatureCredentialsStsAssumeRoleWebID,
+	aws.CredentialSourceSTSFederationToken:   UserAgentFeatureCredentialsStsFederationToken,
+	aws.CredentialSourceSTSSessionToken:      UserAgentFeatureCredentialsStsSessionToken,
+	aws.CredentialSourceProfile:              UserAgentFeatureCredentialsProfile,
+	aws.CredentialSourceProfileSourceProfile: UserAgentFeatureCredentialsProfileSourceProfile,
+	aws.CredentialSourceProfileNamedProvider: UserAgentFeatureCredentialsProfileNamedProvider,
+	aws.CredentialSourceProfileSTSWebIDToken: UserAgentFeatureCredentialsProfileStsWebIDToken,
+	aws.CredentialSourceProfileSSO:           UserAgentFeatureCredentialsProfileSso,
+	aws.CredentialSourceSSO:                  UserAgentFeatureCredentialsSso,
+	aws.CredentialSourceProfileSSOLegacy:     UserAgentFeatureCredentialsProfileSsoLegacy,
+	aws.CredentialSourceSSOLegacy:            UserAgentFeatureCredentialsSsoLegacy,
+	aws.CredentialSourceProfileProcess:       UserAgentFeatureCredentialsProfileProcess,
+	aws.CredentialSourceProcess:              UserAgentFeatureCredentialsProcess,
+	aws.CredentialSourceHTTP:                 UserAgentFeatureCredentialsHTTP,
+	aws.CredentialSourceIMDS:                 UserAgentFeatureCredentialsIMDS,
+}
+
+// RequestUserAgent is a build middleware that set the User-Agent for the request.
+type RequestUserAgent struct {
+	sdkAgent, userAgent *smithyhttp.UserAgentBuilder
+	features            map[UserAgentFeature]struct{}
+}
+
+// NewRequestUserAgent returns a new requestUserAgent which will set the User-Agent and X-Amz-User-Agent for the
+// request.
+//
+// User-Agent example:
+//
+//	aws-sdk-go-v2/1.2.3
+//
+// X-Amz-User-Agent example:
+//
+//	aws-sdk-go-v2/1.2.3 md/GOOS/linux md/GOARCH/amd64 lang/go/1.15
+func NewRequestUserAgent() *RequestUserAgent {
+	userAgent, sdkAgent := smithyhttp.NewUserAgentBuilder(), smithyhttp.NewUserAgentBuilder()
+	addProductName(userAgent)
+	addUserAgentMetadata(userAgent)
+	addProductName(sdkAgent)
+
+	r := &RequestUserAgent{
+		sdkAgent:  sdkAgent,
+		userAgent: userAgent,
+		features:  map[UserAgentFeature]struct{}{},
+	}
+
+	addSDKMetadata(r)
+
+	return r
+}
+
+func addSDKMetadata(r *RequestUserAgent) {
+	r.AddSDKAgentKey(OperatingSystemMetadata, getNormalizedOSName())
+	r.AddSDKAgentKeyValue(LanguageMetadata, "go", languageVersion)
+	r.AddSDKAgentKeyValue(AdditionalMetadata, "GOOS", runtime.GOOS)
+	r.AddSDKAgentKeyValue(AdditionalMetadata, "GOARCH", runtime.GOARCH)
+	if ev := os.Getenv(execEnvVar); len(ev) > 0 {
+		r.AddSDKAgentKey(EnvironmentMetadata, ev)
+	}
+}
+
+func addProductName(builder *smithyhttp.UserAgentBuilder) {
+	builder.AddKeyValue(aws.SDKName, aws.SDKVersion)
+}
+
+func addUserAgentMetadata(builder *smithyhttp.UserAgentBuilder) {
+	builder.AddKey(uaMetadata)
+}
+
+// AddUserAgentKey retrieves a requestUserAgent from the provided stack, or initializes one.
+func AddUserAgentKey(key string) func(*middleware.Stack) error {
+	return func(stack *middleware.Stack) error {
+		requestUserAgent, err := getOrAddRequestUserAgent(stack)
+		if err != nil {
+			return err
+		}
+		requestUserAgent.AddUserAgentKey(key)
+		return nil
+	}
+}
+
+// AddUserAgentKeyValue retrieves a requestUserAgent from the provided stack, or initializes one.
+func AddUserAgentKeyValue(key, value string) func(*middleware.Stack) error {
+	return func(stack *middleware.Stack) error {
+		requestUserAgent, err := getOrAddRequestUserAgent(stack)
+		if err != nil {
+			return err
+		}
+		requestUserAgent.AddUserAgentKeyValue(key, value)
+		return nil
+	}
+}
+
+// AddSDKAgentKey retrieves a requestUserAgent from the provided stack, or initializes one.
+func AddSDKAgentKey(keyType SDKAgentKeyType, key string) func(*middleware.Stack) error {
+	return func(stack *middleware.Stack) error {
+		requestUserAgent, err := getOrAddRequestUserAgent(stack)
+		if err != nil {
+			return err
+		}
+		requestUserAgent.AddSDKAgentKey(keyType, key)
+		return nil
+	}
+}
+
+// AddSDKAgentKeyValue retrieves a requestUserAgent from the provided stack, or initializes one.
+func AddSDKAgentKeyValue(keyType SDKAgentKeyType, key, value string) func(*middleware.Stack) error {
+	return func(stack *middleware.Stack) error {
+		requestUserAgent, err := getOrAddRequestUserAgent(stack)
+		if err != nil {
+			return err
+		}
+		requestUserAgent.AddSDKAgentKeyValue(keyType, key, value)
+		return nil
+	}
+}
+
+// AddRequestUserAgentMiddleware registers a requestUserAgent middleware on the stack if not present.
+func AddRequestUserAgentMiddleware(stack *middleware.Stack) error {
+	_, err := getOrAddRequestUserAgent(stack)
+	return err
+}
+
+func getOrAddRequestUserAgent(stack *middleware.Stack) (*RequestUserAgent, error) {
+	id := (*RequestUserAgent)(nil).ID()
+	bm, ok := stack.Build.Get(id)
+	if !ok {
+		bm = NewRequestUserAgent()
+		err := stack.Build.Add(bm, middleware.After)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	requestUserAgent, ok := bm.(*RequestUserAgent)
+	if !ok {
+		return nil, fmt.Errorf("%T for %s middleware did not match expected type", bm, id)
+	}
+
+	return requestUserAgent, nil
+}
+
+// AddUserAgentKey adds the component identified by name to the User-Agent string.
+func (u *RequestUserAgent) AddUserAgentKey(key string) {
+	u.userAgent.AddKey(strings.Map(rules, key))
+}
+
+// AddUserAgentKeyValue adds the key identified by the given name and value to the User-Agent string.
+func (u *RequestUserAgent) AddUserAgentKeyValue(key, value string) {
+	u.userAgent.AddKeyValue(strings.Map(rules, key), strings.Map(rules, value))
+}
+
+// AddUserAgentFeature adds the feature ID to the tracking list to be emitted
+// in the final User-Agent string.
+func (u *RequestUserAgent) AddUserAgentFeature(feature UserAgentFeature) {
+	u.features[feature] = struct{}{}
+}
+
+// AddSDKAgentKey adds the component identified by name to the User-Agent string.
+func (u *RequestUserAgent) AddSDKAgentKey(keyType SDKAgentKeyType, key string) {
+	// TODO: should target sdkAgent
+	u.userAgent.AddKey(keyType.string() + "/" + strings.Map(rules, key))
+}
+
+// AddSDKAgentKeyValue adds the key identified by the given name and value to the User-Agent string.
+func (u *RequestUserAgent) AddSDKAgentKeyValue(keyType SDKAgentKeyType, key, value string) {
+	// TODO: should target sdkAgent
+	u.userAgent.AddKeyValue(keyType.string(), strings.Map(rules, key)+"#"+strings.Map(rules, value))
+}
+
+// AddCredentialsSource adds the credential source as a feature on the User-Agent string
+func (u *RequestUserAgent) AddCredentialsSource(source aws.CredentialSource) {
+	x, ok := credentialSourceToFeature[source]
+	if ok {
+		u.AddUserAgentFeature(x)
+	}
+}
+
+// ID the name of the middleware.
+func (u *RequestUserAgent) ID() string {
+	return "UserAgent"
+}
+
+// HandleBuild adds or appends the constructed user agent to the request.
+func (u *RequestUserAgent) HandleBuild(ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler) (
+	out middleware.BuildOutput, metadata middleware.Metadata, err error,
+) {
+	switch req := in.Request.(type) {
+	case *smithyhttp.Request:
+		u.addHTTPUserAgent(req)
+		// TODO: To be re-enabled
+		// u.addHTTPSDKAgent(req)
+	default:
+		return out, metadata, fmt.Errorf("unknown transport type %T", in)
+	}
+
+	return next.HandleBuild(ctx, in)
+}
+
+func (u *RequestUserAgent) addHTTPUserAgent(request *smithyhttp.Request) {
+	const userAgent = "User-Agent"
+	if len(u.features) > 0 {
+		updateHTTPHeader(request, userAgent, buildFeatureMetrics(u.features))
+	}
+	updateHTTPHeader(request, userAgent, u.userAgent.Build())
+}
+
+func (u *RequestUserAgent) addHTTPSDKAgent(request *smithyhttp.Request) {
+	const sdkAgent = "X-Amz-User-Agent"
+	updateHTTPHeader(request, sdkAgent, u.sdkAgent.Build())
+}
+
+func updateHTTPHeader(request *smithyhttp.Request, header string, value string) {
+	var current string
+	if v := request.Header[header]; len(v) > 0 {
+		current = v[0]
+	}
+	if len(current) > 0 {
+		current = value + " " + current
+	} else {
+		current = value
+	}
+	request.Header[header] = append(request.Header[header][:0], current)
+}
+
+func rules(r rune) rune {
+	switch {
+	case r >= '0' && r <= '9':
+		return r
+	case r >= 'A' && r <= 'Z' || r >= 'a' && r <= 'z':
+		return r
+	case validChars[r]:
+		return r
+	default:
+		return '-'
+	}
+}
+
+func buildFeatureMetrics(features map[UserAgentFeature]struct{}) string {
+	fs := make([]string, 0, len(features))
+	for f := range features {
+		fs = append(fs, string(f))
+	}
+
+	sort.Strings(fs)
+	return fmt.Sprintf("%s/%s", FeatureMetadata2.string(), strings.Join(fs, ","))
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/CHANGELOG.md

@@ -0,0 +1,142 @@
+# v1.6.10 (2025-02-18)
+
+* **Bug Fix**: Bump go version to 1.22
+
+# v1.6.9 (2025-02-14)
+
+* **Bug Fix**: Remove max limit on event stream messages
+
+# v1.6.8 (2025-01-24)
+
+* **Dependency Update**: Upgrade to smithy-go v1.22.2.
+
+# v1.6.7 (2024-11-18)
+
+* **Dependency Update**: Update to smithy-go v1.22.1.
+
+# v1.6.6 (2024-10-04)
+
+* No change notes available for this release.
+
+# v1.6.5 (2024-09-20)
+
+* No change notes available for this release.
+
+# v1.6.4 (2024-08-15)
+
+* **Dependency Update**: Bump minimum Go version to 1.21.
+
+# v1.6.3 (2024-06-28)
+
+* No change notes available for this release.
+
+# v1.6.2 (2024-03-29)
+
+* No change notes available for this release.
+
+# v1.6.1 (2024-02-21)
+
+* No change notes available for this release.
+
+# v1.6.0 (2024-02-13)
+
+* **Feature**: Bump minimum Go version to 1.20 per our language support policy.
+
+# v1.5.4 (2023-12-07)
+
+* No change notes available for this release.
+
+# v1.5.3 (2023-11-30)
+
+* No change notes available for this release.
+
+# v1.5.2 (2023-11-29)
+
+* No change notes available for this release.
+
+# v1.5.1 (2023-11-15)
+
+* No change notes available for this release.
+
+# v1.5.0 (2023-10-31)
+
+* **Feature**: **BREAKING CHANGE**: Bump minimum go version to 1.19 per the revised [go version support policy](https://aws.amazon.com/blogs/developer/aws-sdk-for-go-aligns-with-go-release-policy-on-supported-runtimes/).
+
+# v1.4.14 (2023-10-06)
+
+* No change notes available for this release.
+
+# v1.4.13 (2023-08-18)
+
+* No change notes available for this release.
+
+# v1.4.12 (2023-08-07)
+
+* No change notes available for this release.
+
+# v1.4.11 (2023-07-31)
+
+* No change notes available for this release.
+
+# v1.4.10 (2022-12-02)
+
+* No change notes available for this release.
+
+# v1.4.9 (2022-10-24)
+
+* No change notes available for this release.
+
+# v1.4.8 (2022-09-14)
+
+* No change notes available for this release.
+
+# v1.4.7 (2022-09-02)
+
+* No change notes available for this release.
+
+# v1.4.6 (2022-08-31)
+
+* No change notes available for this release.
+
+# v1.4.5 (2022-08-29)
+
+* No change notes available for this release.
+
+# v1.4.4 (2022-08-09)
+
+* No change notes available for this release.
+
+# v1.4.3 (2022-06-29)
+
+* No change notes available for this release.
+
+# v1.4.2 (2022-06-07)
+
+* No change notes available for this release.
+
+# v1.4.1 (2022-03-24)
+
+* No change notes available for this release.
+
+# v1.4.0 (2022-03-08)
+
+* **Feature**: Updated `github.com/aws/smithy-go` to latest version
+
+# v1.3.0 (2022-02-24)
+
+* **Feature**: Updated `github.com/aws/smithy-go` to latest version
+
+# v1.2.0 (2022-01-14)
+
+* **Feature**: Updated `github.com/aws/smithy-go` to latest version
+
+# v1.1.0 (2022-01-07)
+
+* **Feature**: Updated `github.com/aws/smithy-go` to latest version
+
+# v1.0.0 (2021-11-06)
+
+* **Announcement**: Support has been added for AWS EventStream APIs for Kinesis, S3, and Transcribe Streaming. Support for the Lex Runtime V2 EventStream API will be added in a future release.
+* **Release**: Protocol support has been added for AWS event stream.
+* **Feature**: Updated `github.com/aws/smithy-go` to latest version
+

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/LICENSE.txt

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
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+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
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+      where such license applies only to those patent claims licensable
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+      Contribution(s) alone or by combination of their Contribution(s)
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+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
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+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
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+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/debug.go

@@ -0,0 +1,144 @@
+package eventstream
+
+import (
+	"bytes"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"strconv"
+)
+
+type decodedMessage struct {
+	rawMessage
+	Headers decodedHeaders `json:"headers"`
+}
+type jsonMessage struct {
+	Length     json.Number    `json:"total_length"`
+	HeadersLen json.Number    `json:"headers_length"`
+	PreludeCRC json.Number    `json:"prelude_crc"`
+	Headers    decodedHeaders `json:"headers"`
+	Payload    []byte         `json:"payload"`
+	CRC        json.Number    `json:"message_crc"`
+}
+
+func (d *decodedMessage) UnmarshalJSON(b []byte) (err error) {
+	var jsonMsg jsonMessage
+	if err = json.Unmarshal(b, &jsonMsg); err != nil {
+		return err
+	}
+
+	d.Length, err = numAsUint32(jsonMsg.Length)
+	if err != nil {
+		return err
+	}
+	d.HeadersLen, err = numAsUint32(jsonMsg.HeadersLen)
+	if err != nil {
+		return err
+	}
+	d.PreludeCRC, err = numAsUint32(jsonMsg.PreludeCRC)
+	if err != nil {
+		return err
+	}
+	d.Headers = jsonMsg.Headers
+	d.Payload = jsonMsg.Payload
+	d.CRC, err = numAsUint32(jsonMsg.CRC)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (d *decodedMessage) MarshalJSON() ([]byte, error) {
+	jsonMsg := jsonMessage{
+		Length:     json.Number(strconv.Itoa(int(d.Length))),
+		HeadersLen: json.Number(strconv.Itoa(int(d.HeadersLen))),
+		PreludeCRC: json.Number(strconv.Itoa(int(d.PreludeCRC))),
+		Headers:    d.Headers,
+		Payload:    d.Payload,
+		CRC:        json.Number(strconv.Itoa(int(d.CRC))),
+	}
+
+	return json.Marshal(jsonMsg)
+}
+
+func numAsUint32(n json.Number) (uint32, error) {
+	v, err := n.Int64()
+	if err != nil {
+		return 0, fmt.Errorf("failed to get int64 json number, %v", err)
+	}
+
+	return uint32(v), nil
+}
+
+func (d decodedMessage) Message() Message {
+	return Message{
+		Headers: Headers(d.Headers),
+		Payload: d.Payload,
+	}
+}
+
+type decodedHeaders Headers
+
+func (hs *decodedHeaders) UnmarshalJSON(b []byte) error {
+	var jsonHeaders []struct {
+		Name  string      `json:"name"`
+		Type  valueType   `json:"type"`
+		Value interface{} `json:"value"`
+	}
+
+	decoder := json.NewDecoder(bytes.NewReader(b))
+	decoder.UseNumber()
+	if err := decoder.Decode(&jsonHeaders); err != nil {
+		return err
+	}
+
+	var headers Headers
+	for _, h := range jsonHeaders {
+		value, err := valueFromType(h.Type, h.Value)
+		if err != nil {
+			return err
+		}
+		headers.Set(h.Name, value)
+	}
+	*hs = decodedHeaders(headers)
+
+	return nil
+}
+
+func valueFromType(typ valueType, val interface{}) (Value, error) {
+	switch typ {
+	case trueValueType:
+		return BoolValue(true), nil
+	case falseValueType:
+		return BoolValue(false), nil
+	case int8ValueType:
+		v, err := val.(json.Number).Int64()
+		return Int8Value(int8(v)), err
+	case int16ValueType:
+		v, err := val.(json.Number).Int64()
+		return Int16Value(int16(v)), err
+	case int32ValueType:
+		v, err := val.(json.Number).Int64()
+		return Int32Value(int32(v)), err
+	case int64ValueType:
+		v, err := val.(json.Number).Int64()
+		return Int64Value(v), err
+	case bytesValueType:
+		v, err := base64.StdEncoding.DecodeString(val.(string))
+		return BytesValue(v), err
+	case stringValueType:
+		v, err := base64.StdEncoding.DecodeString(val.(string))
+		return StringValue(string(v)), err
+	case timestampValueType:
+		v, err := val.(json.Number).Int64()
+		return TimestampValue(timeFromEpochMilli(v)), err
+	case uuidValueType:
+		v, err := base64.StdEncoding.DecodeString(val.(string))
+		var tv UUIDValue
+		copy(tv[:], v)
+		return tv, err
+	default:
+		panic(fmt.Sprintf("unknown type, %s, %T", typ.String(), val))
+	}
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/decode.go

@@ -0,0 +1,218 @@
+package eventstream
+
+import (
+	"bytes"
+	"encoding/binary"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"github.com/aws/smithy-go/logging"
+	"hash"
+	"hash/crc32"
+	"io"
+)
+
+// DecoderOptions is the Decoder configuration options.
+type DecoderOptions struct {
+	Logger      logging.Logger
+	LogMessages bool
+}
+
+// Decoder provides decoding of an Event Stream messages.
+type Decoder struct {
+	options DecoderOptions
+}
+
+// NewDecoder initializes and returns a Decoder for decoding event
+// stream messages from the reader provided.
+func NewDecoder(optFns ...func(*DecoderOptions)) *Decoder {
+	options := DecoderOptions{}
+
+	for _, fn := range optFns {
+		fn(&options)
+	}
+
+	return &Decoder{
+		options: options,
+	}
+}
+
+// Decode attempts to decode a single message from the event stream reader.
+// Will return the event stream message, or error if decodeMessage fails to read
+// the message from the stream.
+//
+// payloadBuf is a byte slice that will be used in the returned Message.Payload. Callers
+// must ensure that the Message.Payload from a previous decode has been consumed before passing in the same underlying
+// payloadBuf byte slice.
+func (d *Decoder) Decode(reader io.Reader, payloadBuf []byte) (m Message, err error) {
+	if d.options.Logger != nil && d.options.LogMessages {
+		debugMsgBuf := bytes.NewBuffer(nil)
+		reader = io.TeeReader(reader, debugMsgBuf)
+		defer func() {
+			logMessageDecode(d.options.Logger, debugMsgBuf, m, err)
+		}()
+	}
+
+	m, err = decodeMessage(reader, payloadBuf)
+
+	return m, err
+}
+
+// decodeMessage attempts to decode a single message from the event stream reader.
+// Will return the event stream message, or error if decodeMessage fails to read
+// the message from the reader.
+func decodeMessage(reader io.Reader, payloadBuf []byte) (m Message, err error) {
+	crc := crc32.New(crc32IEEETable)
+	hashReader := io.TeeReader(reader, crc)
+
+	prelude, err := decodePrelude(hashReader, crc)
+	if err != nil {
+		return Message{}, err
+	}
+
+	if prelude.HeadersLen > 0 {
+		lr := io.LimitReader(hashReader, int64(prelude.HeadersLen))
+		m.Headers, err = decodeHeaders(lr)
+		if err != nil {
+			return Message{}, err
+		}
+	}
+
+	if payloadLen := prelude.PayloadLen(); payloadLen > 0 {
+		buf, err := decodePayload(payloadBuf, io.LimitReader(hashReader, int64(payloadLen)))
+		if err != nil {
+			return Message{}, err
+		}
+		m.Payload = buf
+	}
+
+	msgCRC := crc.Sum32()
+	if err := validateCRC(reader, msgCRC); err != nil {
+		return Message{}, err
+	}
+
+	return m, nil
+}
+
+func logMessageDecode(logger logging.Logger, msgBuf *bytes.Buffer, msg Message, decodeErr error) {
+	w := bytes.NewBuffer(nil)
+	defer func() { logger.Logf(logging.Debug, w.String()) }()
+
+	fmt.Fprintf(w, "Raw message:\n%s\n",
+		hex.Dump(msgBuf.Bytes()))
+
+	if decodeErr != nil {
+		fmt.Fprintf(w, "decodeMessage error: %v\n", decodeErr)
+		return
+	}
+
+	rawMsg, err := msg.rawMessage()
+	if err != nil {
+		fmt.Fprintf(w, "failed to create raw message, %v\n", err)
+		return
+	}
+
+	decodedMsg := decodedMessage{
+		rawMessage: rawMsg,
+		Headers:    decodedHeaders(msg.Headers),
+	}
+
+	fmt.Fprintf(w, "Decoded message:\n")
+	encoder := json.NewEncoder(w)
+	if err := encoder.Encode(decodedMsg); err != nil {
+		fmt.Fprintf(w, "failed to generate decoded message, %v\n", err)
+	}
+}
+
+func decodePrelude(r io.Reader, crc hash.Hash32) (messagePrelude, error) {
+	var p messagePrelude
+
+	var err error
+	p.Length, err = decodeUint32(r)
+	if err != nil {
+		return messagePrelude{}, err
+	}
+
+	p.HeadersLen, err = decodeUint32(r)
+	if err != nil {
+		return messagePrelude{}, err
+	}
+
+	if err := p.ValidateLens(); err != nil {
+		return messagePrelude{}, err
+	}
+
+	preludeCRC := crc.Sum32()
+	if err := validateCRC(r, preludeCRC); err != nil {
+		return messagePrelude{}, err
+	}
+
+	p.PreludeCRC = preludeCRC
+
+	return p, nil
+}
+
+func decodePayload(buf []byte, r io.Reader) ([]byte, error) {
+	w := bytes.NewBuffer(buf[0:0])
+
+	_, err := io.Copy(w, r)
+	return w.Bytes(), err
+}
+
+func decodeUint8(r io.Reader) (uint8, error) {
+	type byteReader interface {
+		ReadByte() (byte, error)
+	}
+
+	if br, ok := r.(byteReader); ok {
+		v, err := br.ReadByte()
+		return v, err
+	}
+
+	var b [1]byte
+	_, err := io.ReadFull(r, b[:])
+	return b[0], err
+}
+
+func decodeUint16(r io.Reader) (uint16, error) {
+	var b [2]byte
+	bs := b[:]
+	_, err := io.ReadFull(r, bs)
+	if err != nil {
+		return 0, err
+	}
+	return binary.BigEndian.Uint16(bs), nil
+}
+
+func decodeUint32(r io.Reader) (uint32, error) {
+	var b [4]byte
+	bs := b[:]
+	_, err := io.ReadFull(r, bs)
+	if err != nil {
+		return 0, err
+	}
+	return binary.BigEndian.Uint32(bs), nil
+}
+
+func decodeUint64(r io.Reader) (uint64, error) {
+	var b [8]byte
+	bs := b[:]
+	_, err := io.ReadFull(r, bs)
+	if err != nil {
+		return 0, err
+	}
+	return binary.BigEndian.Uint64(bs), nil
+}
+
+func validateCRC(r io.Reader, expect uint32) error {
+	msgCRC, err := decodeUint32(r)
+	if err != nil {
+		return err
+	}
+
+	if msgCRC != expect {
+		return ChecksumError{}
+	}
+
+	return nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/encode.go

@@ -0,0 +1,167 @@
+package eventstream
+
+import (
+	"bytes"
+	"encoding/binary"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"github.com/aws/smithy-go/logging"
+	"hash"
+	"hash/crc32"
+	"io"
+)
+
+// EncoderOptions is the configuration options for Encoder.
+type EncoderOptions struct {
+	Logger      logging.Logger
+	LogMessages bool
+}
+
+// Encoder provides EventStream message encoding.
+type Encoder struct {
+	options EncoderOptions
+
+	headersBuf *bytes.Buffer
+	messageBuf *bytes.Buffer
+}
+
+// NewEncoder initializes and returns an Encoder to encode Event Stream
+// messages.
+func NewEncoder(optFns ...func(*EncoderOptions)) *Encoder {
+	o := EncoderOptions{}
+
+	for _, fn := range optFns {
+		fn(&o)
+	}
+
+	return &Encoder{
+		options:    o,
+		headersBuf: bytes.NewBuffer(nil),
+		messageBuf: bytes.NewBuffer(nil),
+	}
+}
+
+// Encode encodes a single EventStream message to the io.Writer the Encoder
+// was created with. An error is returned if writing the message fails.
+func (e *Encoder) Encode(w io.Writer, msg Message) (err error) {
+	e.headersBuf.Reset()
+	e.messageBuf.Reset()
+
+	var writer io.Writer = e.messageBuf
+	if e.options.Logger != nil && e.options.LogMessages {
+		encodeMsgBuf := bytes.NewBuffer(nil)
+		writer = io.MultiWriter(writer, encodeMsgBuf)
+		defer func() {
+			logMessageEncode(e.options.Logger, encodeMsgBuf, msg, err)
+		}()
+	}
+
+	if err = EncodeHeaders(e.headersBuf, msg.Headers); err != nil {
+		return err
+	}
+
+	crc := crc32.New(crc32IEEETable)
+	hashWriter := io.MultiWriter(writer, crc)
+
+	headersLen := uint32(e.headersBuf.Len())
+	payloadLen := uint32(len(msg.Payload))
+
+	if err = encodePrelude(hashWriter, crc, headersLen, payloadLen); err != nil {
+		return err
+	}
+
+	if headersLen > 0 {
+		if _, err = io.Copy(hashWriter, e.headersBuf); err != nil {
+			return err
+		}
+	}
+
+	if payloadLen > 0 {
+		if _, err = hashWriter.Write(msg.Payload); err != nil {
+			return err
+		}
+	}
+
+	msgCRC := crc.Sum32()
+	if err := binary.Write(writer, binary.BigEndian, msgCRC); err != nil {
+		return err
+	}
+
+	_, err = io.Copy(w, e.messageBuf)
+
+	return err
+}
+
+func logMessageEncode(logger logging.Logger, msgBuf *bytes.Buffer, msg Message, encodeErr error) {
+	w := bytes.NewBuffer(nil)
+	defer func() { logger.Logf(logging.Debug, w.String()) }()
+
+	fmt.Fprintf(w, "Message to encode:\n")
+	encoder := json.NewEncoder(w)
+	if err := encoder.Encode(msg); err != nil {
+		fmt.Fprintf(w, "Failed to get encoded message, %v\n", err)
+	}
+
+	if encodeErr != nil {
+		fmt.Fprintf(w, "Encode error: %v\n", encodeErr)
+		return
+	}
+
+	fmt.Fprintf(w, "Raw message:\n%s\n", hex.Dump(msgBuf.Bytes()))
+}
+
+func encodePrelude(w io.Writer, crc hash.Hash32, headersLen, payloadLen uint32) error {
+	p := messagePrelude{
+		Length:     minMsgLen + headersLen + payloadLen,
+		HeadersLen: headersLen,
+	}
+	if err := p.ValidateLens(); err != nil {
+		return err
+	}
+
+	err := binaryWriteFields(w, binary.BigEndian,
+		p.Length,
+		p.HeadersLen,
+	)
+	if err != nil {
+		return err
+	}
+
+	p.PreludeCRC = crc.Sum32()
+	err = binary.Write(w, binary.BigEndian, p.PreludeCRC)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// EncodeHeaders writes the header values to the writer encoded in the event
+// stream format. Returns an error if a header fails to encode.
+func EncodeHeaders(w io.Writer, headers Headers) error {
+	for _, h := range headers {
+		hn := headerName{
+			Len: uint8(len(h.Name)),
+		}
+		copy(hn.Name[:hn.Len], h.Name)
+		if err := hn.encode(w); err != nil {
+			return err
+		}
+
+		if err := h.Value.encode(w); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func binaryWriteFields(w io.Writer, order binary.ByteOrder, vs ...interface{}) error {
+	for _, v := range vs {
+		if err := binary.Write(w, order, v); err != nil {
+			return err
+		}
+	}
+	return nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/error.go

@@ -0,0 +1,23 @@
+package eventstream
+
+import "fmt"
+
+// LengthError provides the error for items being larger than a maximum length.
+type LengthError struct {
+	Part  string
+	Want  int
+	Have  int
+	Value interface{}
+}
+
+func (e LengthError) Error() string {
+	return fmt.Sprintf("%s length invalid, %d/%d, %v",
+		e.Part, e.Want, e.Have, e.Value)
+}
+
+// ChecksumError provides the error for message checksum invalidation errors.
+type ChecksumError struct{}
+
+func (e ChecksumError) Error() string {
+	return "message checksum mismatch"
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/eventstreamapi/headers.go

@@ -0,0 +1,24 @@
+package eventstreamapi
+
+// EventStream headers with specific meaning to async API functionality.
+const (
+	ChunkSignatureHeader = `:chunk-signature` // chunk signature for message
+	DateHeader           = `:date`            // Date header for signature
+	ContentTypeHeader    = ":content-type"    // message payload content-type
+
+	// Message header and values
+	MessageTypeHeader    = `:message-type` // Identifies type of message.
+	EventMessageType     = `event`
+	ErrorMessageType     = `error`
+	ExceptionMessageType = `exception`
+
+	// Message Events
+	EventTypeHeader = `:event-type` // Identifies message event type e.g. "Stats".
+
+	// Message Error
+	ErrorCodeHeader    = `:error-code`
+	ErrorMessageHeader = `:error-message`
+
+	// Message Exception
+	ExceptionTypeHeader = `:exception-type`
+)

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/eventstreamapi/middleware.go

@@ -0,0 +1,71 @@
+package eventstreamapi
+
+import (
+	"context"
+	"fmt"
+	"github.com/aws/smithy-go/middleware"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+	"io"
+)
+
+type eventStreamWriterKey struct{}
+
+// GetInputStreamWriter returns EventTypeHeader io.PipeWriter used for the operation's input event stream.
+func GetInputStreamWriter(ctx context.Context) io.WriteCloser {
+	writeCloser, _ := middleware.GetStackValue(ctx, eventStreamWriterKey{}).(io.WriteCloser)
+	return writeCloser
+}
+
+func setInputStreamWriter(ctx context.Context, writeCloser io.WriteCloser) context.Context {
+	return middleware.WithStackValue(ctx, eventStreamWriterKey{}, writeCloser)
+}
+
+// InitializeStreamWriter is a Finalize middleware initializes an in-memory pipe for sending event stream messages
+// via the HTTP request body.
+type InitializeStreamWriter struct{}
+
+// AddInitializeStreamWriter adds the InitializeStreamWriter middleware to the provided stack.
+func AddInitializeStreamWriter(stack *middleware.Stack) error {
+	return stack.Finalize.Add(&InitializeStreamWriter{}, middleware.After)
+}
+
+// ID returns the identifier for the middleware.
+func (i *InitializeStreamWriter) ID() string {
+	return "InitializeStreamWriter"
+}
+
+// HandleFinalize is the middleware implementation.
+func (i *InitializeStreamWriter) HandleFinalize(
+	ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler,
+) (
+	out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
+) {
+	request, ok := in.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, fmt.Errorf("unknown transport type: %T", in.Request)
+	}
+
+	inputReader, inputWriter := io.Pipe()
+	defer func() {
+		if err == nil {
+			return
+		}
+		_ = inputReader.Close()
+		_ = inputWriter.Close()
+	}()
+
+	request, err = request.SetStream(inputReader)
+	if err != nil {
+		return out, metadata, err
+	}
+	in.Request = request
+
+	ctx = setInputStreamWriter(ctx, inputWriter)
+
+	out, metadata, err = next.HandleFinalize(ctx, in)
+	if err != nil {
+		return out, metadata, err
+	}
+
+	return out, metadata, err
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/eventstreamapi/transport.go

@@ -0,0 +1,13 @@
+//go:build go1.18
+// +build go1.18
+
+package eventstreamapi
+
+import smithyhttp "github.com/aws/smithy-go/transport/http"
+
+// ApplyHTTPTransportFixes applies fixes to the HTTP request for proper event stream functionality.
+//
+// This operation is a no-op for Go 1.18 and above.
+func ApplyHTTPTransportFixes(r *smithyhttp.Request) error {
+	return nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/eventstreamapi/transport_go117.go

@@ -0,0 +1,12 @@
+//go:build !go1.18
+// +build !go1.18
+
+package eventstreamapi
+
+import smithyhttp "github.com/aws/smithy-go/transport/http"
+
+// ApplyHTTPTransportFixes applies fixes to the HTTP request for proper event stream functionality.
+func ApplyHTTPTransportFixes(r *smithyhttp.Request) error {
+	r.Header.Set("Expect", "100-continue")
+	return nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/go_module_metadata.go

@@ -0,0 +1,6 @@
+// Code generated by internal/repotools/cmd/updatemodulemeta DO NOT EDIT.
+
+package eventstream
+
+// goModuleVersion is the tagged release for this module
+const goModuleVersion = "1.6.10"

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/header.go

@@ -0,0 +1,175 @@
+package eventstream
+
+import (
+	"encoding/binary"
+	"fmt"
+	"io"
+)
+
+// Headers are a collection of EventStream header values.
+type Headers []Header
+
+// Header is a single EventStream Key Value header pair.
+type Header struct {
+	Name  string
+	Value Value
+}
+
+// Set associates the name with a value. If the header name already exists in
+// the Headers the value will be replaced with the new one.
+func (hs *Headers) Set(name string, value Value) {
+	var i int
+	for ; i < len(*hs); i++ {
+		if (*hs)[i].Name == name {
+			(*hs)[i].Value = value
+			return
+		}
+	}
+
+	*hs = append(*hs, Header{
+		Name: name, Value: value,
+	})
+}
+
+// Get returns the Value associated with the header. Nil is returned if the
+// value does not exist.
+func (hs Headers) Get(name string) Value {
+	for i := 0; i < len(hs); i++ {
+		if h := hs[i]; h.Name == name {
+			return h.Value
+		}
+	}
+	return nil
+}
+
+// Del deletes the value in the Headers if it exists.
+func (hs *Headers) Del(name string) {
+	for i := 0; i < len(*hs); i++ {
+		if (*hs)[i].Name == name {
+			copy((*hs)[i:], (*hs)[i+1:])
+			(*hs) = (*hs)[:len(*hs)-1]
+		}
+	}
+}
+
+// Clone returns a deep copy of the headers
+func (hs Headers) Clone() Headers {
+	o := make(Headers, 0, len(hs))
+	for _, h := range hs {
+		o.Set(h.Name, h.Value)
+	}
+	return o
+}
+
+func decodeHeaders(r io.Reader) (Headers, error) {
+	hs := Headers{}
+
+	for {
+		name, err := decodeHeaderName(r)
+		if err != nil {
+			if err == io.EOF {
+				// EOF while getting header name means no more headers
+				break
+			}
+			return nil, err
+		}
+
+		value, err := decodeHeaderValue(r)
+		if err != nil {
+			return nil, err
+		}
+
+		hs.Set(name, value)
+	}
+
+	return hs, nil
+}
+
+func decodeHeaderName(r io.Reader) (string, error) {
+	var n headerName
+
+	var err error
+	n.Len, err = decodeUint8(r)
+	if err != nil {
+		return "", err
+	}
+
+	name := n.Name[:n.Len]
+	if _, err := io.ReadFull(r, name); err != nil {
+		return "", err
+	}
+
+	return string(name), nil
+}
+
+func decodeHeaderValue(r io.Reader) (Value, error) {
+	var raw rawValue
+
+	typ, err := decodeUint8(r)
+	if err != nil {
+		return nil, err
+	}
+	raw.Type = valueType(typ)
+
+	var v Value
+
+	switch raw.Type {
+	case trueValueType:
+		v = BoolValue(true)
+	case falseValueType:
+		v = BoolValue(false)
+	case int8ValueType:
+		var tv Int8Value
+		err = tv.decode(r)
+		v = tv
+	case int16ValueType:
+		var tv Int16Value
+		err = tv.decode(r)
+		v = tv
+	case int32ValueType:
+		var tv Int32Value
+		err = tv.decode(r)
+		v = tv
+	case int64ValueType:
+		var tv Int64Value
+		err = tv.decode(r)
+		v = tv
+	case bytesValueType:
+		var tv BytesValue
+		err = tv.decode(r)
+		v = tv
+	case stringValueType:
+		var tv StringValue
+		err = tv.decode(r)
+		v = tv
+	case timestampValueType:
+		var tv TimestampValue
+		err = tv.decode(r)
+		v = tv
+	case uuidValueType:
+		var tv UUIDValue
+		err = tv.decode(r)
+		v = tv
+	default:
+		panic(fmt.Sprintf("unknown value type %d", raw.Type))
+	}
+
+	// Error could be EOF, let caller deal with it
+	return v, err
+}
+
+const maxHeaderNameLen = 255
+
+type headerName struct {
+	Len  uint8
+	Name [maxHeaderNameLen]byte
+}
+
+func (v headerName) encode(w io.Writer) error {
+	if err := binary.Write(w, binary.BigEndian, v.Len); err != nil {
+		return err
+	}
+
+	_, err := w.Write(v.Name[:v.Len])
+	return err
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/header_value.go

@@ -0,0 +1,521 @@
+package eventstream
+
+import (
+	"encoding/base64"
+	"encoding/binary"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"strconv"
+	"time"
+)
+
+const maxHeaderValueLen = 1<<15 - 1 // 2^15-1 or 32KB - 1
+
+// valueType is the EventStream header value type.
+type valueType uint8
+
+// Header value types
+const (
+	trueValueType valueType = iota
+	falseValueType
+	int8ValueType  // Byte
+	int16ValueType // Short
+	int32ValueType // Integer
+	int64ValueType // Long
+	bytesValueType
+	stringValueType
+	timestampValueType
+	uuidValueType
+)
+
+func (t valueType) String() string {
+	switch t {
+	case trueValueType:
+		return "bool"
+	case falseValueType:
+		return "bool"
+	case int8ValueType:
+		return "int8"
+	case int16ValueType:
+		return "int16"
+	case int32ValueType:
+		return "int32"
+	case int64ValueType:
+		return "int64"
+	case bytesValueType:
+		return "byte_array"
+	case stringValueType:
+		return "string"
+	case timestampValueType:
+		return "timestamp"
+	case uuidValueType:
+		return "uuid"
+	default:
+		return fmt.Sprintf("unknown value type %d", uint8(t))
+	}
+}
+
+type rawValue struct {
+	Type  valueType
+	Len   uint16 // Only set for variable length slices
+	Value []byte // byte representation of value, BigEndian encoding.
+}
+
+func (r rawValue) encodeScalar(w io.Writer, v interface{}) error {
+	return binaryWriteFields(w, binary.BigEndian,
+		r.Type,
+		v,
+	)
+}
+
+func (r rawValue) encodeFixedSlice(w io.Writer, v []byte) error {
+	binary.Write(w, binary.BigEndian, r.Type)
+
+	_, err := w.Write(v)
+	return err
+}
+
+func (r rawValue) encodeBytes(w io.Writer, v []byte) error {
+	if len(v) > maxHeaderValueLen {
+		return LengthError{
+			Part: "header value",
+			Want: maxHeaderValueLen, Have: len(v),
+			Value: v,
+		}
+	}
+	r.Len = uint16(len(v))
+
+	err := binaryWriteFields(w, binary.BigEndian,
+		r.Type,
+		r.Len,
+	)
+	if err != nil {
+		return err
+	}
+
+	_, err = w.Write(v)
+	return err
+}
+
+func (r rawValue) encodeString(w io.Writer, v string) error {
+	if len(v) > maxHeaderValueLen {
+		return LengthError{
+			Part: "header value",
+			Want: maxHeaderValueLen, Have: len(v),
+			Value: v,
+		}
+	}
+	r.Len = uint16(len(v))
+
+	type stringWriter interface {
+		WriteString(string) (int, error)
+	}
+
+	err := binaryWriteFields(w, binary.BigEndian,
+		r.Type,
+		r.Len,
+	)
+	if err != nil {
+		return err
+	}
+
+	if sw, ok := w.(stringWriter); ok {
+		_, err = sw.WriteString(v)
+	} else {
+		_, err = w.Write([]byte(v))
+	}
+
+	return err
+}
+
+func decodeFixedBytesValue(r io.Reader, buf []byte) error {
+	_, err := io.ReadFull(r, buf)
+	return err
+}
+
+func decodeBytesValue(r io.Reader) ([]byte, error) {
+	var raw rawValue
+	var err error
+	raw.Len, err = decodeUint16(r)
+	if err != nil {
+		return nil, err
+	}
+
+	buf := make([]byte, raw.Len)
+	_, err = io.ReadFull(r, buf)
+	if err != nil {
+		return nil, err
+	}
+
+	return buf, nil
+}
+
+func decodeStringValue(r io.Reader) (string, error) {
+	v, err := decodeBytesValue(r)
+	return string(v), err
+}
+
+// Value represents the abstract header value.
+type Value interface {
+	Get() interface{}
+	String() string
+	valueType() valueType
+	encode(io.Writer) error
+}
+
+// An BoolValue provides eventstream encoding, and representation
+// of a Go bool value.
+type BoolValue bool
+
+// Get returns the underlying type
+func (v BoolValue) Get() interface{} {
+	return bool(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (v BoolValue) valueType() valueType {
+	if v {
+		return trueValueType
+	}
+	return falseValueType
+}
+
+func (v BoolValue) String() string {
+	return strconv.FormatBool(bool(v))
+}
+
+// encode encodes the BoolValue into an eventstream binary value
+// representation.
+func (v BoolValue) encode(w io.Writer) error {
+	return binary.Write(w, binary.BigEndian, v.valueType())
+}
+
+// An Int8Value provides eventstream encoding, and representation of a Go
+// int8 value.
+type Int8Value int8
+
+// Get returns the underlying value.
+func (v Int8Value) Get() interface{} {
+	return int8(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (Int8Value) valueType() valueType {
+	return int8ValueType
+}
+
+func (v Int8Value) String() string {
+	return fmt.Sprintf("0x%02x", int8(v))
+}
+
+// encode encodes the Int8Value into an eventstream binary value
+// representation.
+func (v Int8Value) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	return raw.encodeScalar(w, v)
+}
+
+func (v *Int8Value) decode(r io.Reader) error {
+	n, err := decodeUint8(r)
+	if err != nil {
+		return err
+	}
+
+	*v = Int8Value(n)
+	return nil
+}
+
+// An Int16Value provides eventstream encoding, and representation of a Go
+// int16 value.
+type Int16Value int16
+
+// Get returns the underlying value.
+func (v Int16Value) Get() interface{} {
+	return int16(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (Int16Value) valueType() valueType {
+	return int16ValueType
+}
+
+func (v Int16Value) String() string {
+	return fmt.Sprintf("0x%04x", int16(v))
+}
+
+// encode encodes the Int16Value into an eventstream binary value
+// representation.
+func (v Int16Value) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+	return raw.encodeScalar(w, v)
+}
+
+func (v *Int16Value) decode(r io.Reader) error {
+	n, err := decodeUint16(r)
+	if err != nil {
+		return err
+	}
+
+	*v = Int16Value(n)
+	return nil
+}
+
+// An Int32Value provides eventstream encoding, and representation of a Go
+// int32 value.
+type Int32Value int32
+
+// Get returns the underlying value.
+func (v Int32Value) Get() interface{} {
+	return int32(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (Int32Value) valueType() valueType {
+	return int32ValueType
+}
+
+func (v Int32Value) String() string {
+	return fmt.Sprintf("0x%08x", int32(v))
+}
+
+// encode encodes the Int32Value into an eventstream binary value
+// representation.
+func (v Int32Value) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+	return raw.encodeScalar(w, v)
+}
+
+func (v *Int32Value) decode(r io.Reader) error {
+	n, err := decodeUint32(r)
+	if err != nil {
+		return err
+	}
+
+	*v = Int32Value(n)
+	return nil
+}
+
+// An Int64Value provides eventstream encoding, and representation of a Go
+// int64 value.
+type Int64Value int64
+
+// Get returns the underlying value.
+func (v Int64Value) Get() interface{} {
+	return int64(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (Int64Value) valueType() valueType {
+	return int64ValueType
+}
+
+func (v Int64Value) String() string {
+	return fmt.Sprintf("0x%016x", int64(v))
+}
+
+// encode encodes the Int64Value into an eventstream binary value
+// representation.
+func (v Int64Value) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+	return raw.encodeScalar(w, v)
+}
+
+func (v *Int64Value) decode(r io.Reader) error {
+	n, err := decodeUint64(r)
+	if err != nil {
+		return err
+	}
+
+	*v = Int64Value(n)
+	return nil
+}
+
+// An BytesValue provides eventstream encoding, and representation of a Go
+// byte slice.
+type BytesValue []byte
+
+// Get returns the underlying value.
+func (v BytesValue) Get() interface{} {
+	return []byte(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (BytesValue) valueType() valueType {
+	return bytesValueType
+}
+
+func (v BytesValue) String() string {
+	return base64.StdEncoding.EncodeToString([]byte(v))
+}
+
+// encode encodes the BytesValue into an eventstream binary value
+// representation.
+func (v BytesValue) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	return raw.encodeBytes(w, []byte(v))
+}
+
+func (v *BytesValue) decode(r io.Reader) error {
+	buf, err := decodeBytesValue(r)
+	if err != nil {
+		return err
+	}
+
+	*v = BytesValue(buf)
+	return nil
+}
+
+// An StringValue provides eventstream encoding, and representation of a Go
+// string.
+type StringValue string
+
+// Get returns the underlying value.
+func (v StringValue) Get() interface{} {
+	return string(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (StringValue) valueType() valueType {
+	return stringValueType
+}
+
+func (v StringValue) String() string {
+	return string(v)
+}
+
+// encode encodes the StringValue into an eventstream binary value
+// representation.
+func (v StringValue) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	return raw.encodeString(w, string(v))
+}
+
+func (v *StringValue) decode(r io.Reader) error {
+	s, err := decodeStringValue(r)
+	if err != nil {
+		return err
+	}
+
+	*v = StringValue(s)
+	return nil
+}
+
+// An TimestampValue provides eventstream encoding, and representation of a Go
+// timestamp.
+type TimestampValue time.Time
+
+// Get returns the underlying value.
+func (v TimestampValue) Get() interface{} {
+	return time.Time(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (TimestampValue) valueType() valueType {
+	return timestampValueType
+}
+
+func (v TimestampValue) epochMilli() int64 {
+	nano := time.Time(v).UnixNano()
+	msec := nano / int64(time.Millisecond)
+	return msec
+}
+
+func (v TimestampValue) String() string {
+	msec := v.epochMilli()
+	return strconv.FormatInt(msec, 10)
+}
+
+// encode encodes the TimestampValue into an eventstream binary value
+// representation.
+func (v TimestampValue) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	msec := v.epochMilli()
+	return raw.encodeScalar(w, msec)
+}
+
+func (v *TimestampValue) decode(r io.Reader) error {
+	n, err := decodeUint64(r)
+	if err != nil {
+		return err
+	}
+
+	*v = TimestampValue(timeFromEpochMilli(int64(n)))
+	return nil
+}
+
+// MarshalJSON implements the json.Marshaler interface
+func (v TimestampValue) MarshalJSON() ([]byte, error) {
+	return []byte(v.String()), nil
+}
+
+func timeFromEpochMilli(t int64) time.Time {
+	secs := t / 1e3
+	msec := t % 1e3
+	return time.Unix(secs, msec*int64(time.Millisecond)).UTC()
+}
+
+// An UUIDValue provides eventstream encoding, and representation of a UUID
+// value.
+type UUIDValue [16]byte
+
+// Get returns the underlying value.
+func (v UUIDValue) Get() interface{} {
+	return v[:]
+}
+
+// valueType returns the EventStream header value type value.
+func (UUIDValue) valueType() valueType {
+	return uuidValueType
+}
+
+func (v UUIDValue) String() string {
+	var scratch [36]byte
+
+	const dash = '-'
+
+	hex.Encode(scratch[:8], v[0:4])
+	scratch[8] = dash
+	hex.Encode(scratch[9:13], v[4:6])
+	scratch[13] = dash
+	hex.Encode(scratch[14:18], v[6:8])
+	scratch[18] = dash
+	hex.Encode(scratch[19:23], v[8:10])
+	scratch[23] = dash
+	hex.Encode(scratch[24:], v[10:])
+
+	return string(scratch[:])
+}
+
+// encode encodes the UUIDValue into an eventstream binary value
+// representation.
+func (v UUIDValue) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	return raw.encodeFixedSlice(w, v[:])
+}
+
+func (v *UUIDValue) decode(r io.Reader) error {
+	tv := (*v)[:]
+	return decodeFixedBytesValue(r, tv)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream/message.go

@@ -0,0 +1,99 @@
+package eventstream
+
+import (
+	"bytes"
+	"encoding/binary"
+	"hash/crc32"
+)
+
+const preludeLen = 8
+const preludeCRCLen = 4
+const msgCRCLen = 4
+const minMsgLen = preludeLen + preludeCRCLen + msgCRCLen
+
+var crc32IEEETable = crc32.MakeTable(crc32.IEEE)
+
+// A Message provides the eventstream message representation.
+type Message struct {
+	Headers Headers
+	Payload []byte
+}
+
+func (m *Message) rawMessage() (rawMessage, error) {
+	var raw rawMessage
+
+	if len(m.Headers) > 0 {
+		var headers bytes.Buffer
+		if err := EncodeHeaders(&headers, m.Headers); err != nil {
+			return rawMessage{}, err
+		}
+		raw.Headers = headers.Bytes()
+		raw.HeadersLen = uint32(len(raw.Headers))
+	}
+
+	raw.Length = raw.HeadersLen + uint32(len(m.Payload)) + minMsgLen
+
+	hash := crc32.New(crc32IEEETable)
+	binaryWriteFields(hash, binary.BigEndian, raw.Length, raw.HeadersLen)
+	raw.PreludeCRC = hash.Sum32()
+
+	binaryWriteFields(hash, binary.BigEndian, raw.PreludeCRC)
+
+	if raw.HeadersLen > 0 {
+		hash.Write(raw.Headers)
+	}
+
+	// Read payload bytes and update hash for it as well.
+	if len(m.Payload) > 0 {
+		raw.Payload = m.Payload
+		hash.Write(raw.Payload)
+	}
+
+	raw.CRC = hash.Sum32()
+
+	return raw, nil
+}
+
+// Clone returns a deep copy of the message.
+func (m Message) Clone() Message {
+	var payload []byte
+	if m.Payload != nil {
+		payload = make([]byte, len(m.Payload))
+		copy(payload, m.Payload)
+	}
+
+	return Message{
+		Headers: m.Headers.Clone(),
+		Payload: payload,
+	}
+}
+
+type messagePrelude struct {
+	Length     uint32
+	HeadersLen uint32
+	PreludeCRC uint32
+}
+
+func (p messagePrelude) PayloadLen() uint32 {
+	return p.Length - p.HeadersLen - minMsgLen
+}
+
+func (p messagePrelude) ValidateLens() error {
+	if p.Length == 0 {
+		return LengthError{
+			Part: "message prelude",
+			Want: minMsgLen,
+			Have: int(p.Length),
+		}
+	}
+	return nil
+}
+
+type rawMessage struct {
+	messagePrelude
+
+	Headers []byte
+	Payload []byte
+
+	CRC uint32
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/array.go

@@ -0,0 +1,61 @@
+package query
+
+import (
+	"net/url"
+	"strconv"
+)
+
+// Array represents the encoding of Query lists and sets. A Query array is a
+// representation of a list of values of a fixed type. A serialized array might
+// look like the following:
+//
+//	ListName.member.1=foo
+//	&ListName.member.2=bar
+//	&Listname.member.3=baz
+type Array struct {
+	// The query values to add the array to.
+	values url.Values
+	// The array's prefix, which includes the names of all parent structures
+	// and ends with the name of the list. For example, the prefix might be
+	// "ParentStructure.ListName". This prefix will be used to form the full
+	// keys for each element in the list. For example, an entry might have the
+	// key "ParentStructure.ListName.member.MemberName.1".
+	//
+	// When the array is not flat the prefix will contain the memberName otherwise the memberName is ignored
+	prefix string
+	// Elements are stored in values, so we keep track of the list size here.
+	size int32
+	// Empty lists are encoded as "<prefix>=", if we add a value later we will
+	// remove this encoding
+	emptyValue Value
+}
+
+func newArray(values url.Values, prefix string, flat bool, memberName string) *Array {
+	emptyValue := newValue(values, prefix, flat)
+	emptyValue.String("")
+
+	if !flat {
+		// This uses string concatenation in place of fmt.Sprintf as fmt.Sprintf has a much higher resource overhead
+		prefix = prefix + keySeparator + memberName
+	}
+
+	return &Array{
+		values:     values,
+		prefix:     prefix,
+		emptyValue: emptyValue,
+	}
+}
+
+// Value adds a new element to the Query Array. Returns a Value type used to
+// encode the array element.
+func (a *Array) Value() Value {
+	if a.size == 0 {
+		delete(a.values, a.emptyValue.key)
+	}
+
+	// Query lists start a 1, so adjust the size first
+	a.size++
+	// Lists can't have flat members
+	// This uses string concatenation in place of fmt.Sprintf as fmt.Sprintf has a much higher resource overhead
+	return newValue(a.values, a.prefix+keySeparator+strconv.FormatInt(int64(a.size), 10), false)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/encoder.go

@@ -0,0 +1,80 @@
+package query
+
+import (
+	"io"
+	"net/url"
+	"sort"
+)
+
+// Encoder is a Query encoder that supports construction of Query body
+// values using methods.
+type Encoder struct {
+	// The query values that will be built up to manage encoding.
+	values url.Values
+	// The writer that the encoded body will be written to.
+	writer io.Writer
+	Value
+}
+
+// NewEncoder returns a new Query body encoder
+func NewEncoder(writer io.Writer) *Encoder {
+	values := url.Values{}
+	return &Encoder{
+		values: values,
+		writer: writer,
+		Value:  newBaseValue(values),
+	}
+}
+
+// Encode returns the []byte slice representing the current
+// state of the Query encoder.
+func (e Encoder) Encode() error {
+	ws, ok := e.writer.(interface{ WriteString(string) (int, error) })
+	if !ok {
+		// Fall back to less optimal byte slice casting if WriteString isn't available.
+		ws = &wrapWriteString{writer: e.writer}
+	}
+
+	// Get the keys and sort them to have a stable output
+	keys := make([]string, 0, len(e.values))
+	for k := range e.values {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	isFirstEntry := true
+	for _, key := range keys {
+		queryValues := e.values[key]
+		escapedKey := url.QueryEscape(key)
+		for _, value := range queryValues {
+			if !isFirstEntry {
+				if _, err := ws.WriteString(`&`); err != nil {
+					return err
+				}
+			} else {
+				isFirstEntry = false
+			}
+			if _, err := ws.WriteString(escapedKey); err != nil {
+				return err
+			}
+			if _, err := ws.WriteString(`=`); err != nil {
+				return err
+			}
+			if _, err := ws.WriteString(url.QueryEscape(value)); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// wrapWriteString wraps an io.Writer to provide a WriteString method
+// where one is not available.
+type wrapWriteString struct {
+	writer io.Writer
+}
+
+// WriteString writes a string to the wrapped writer by casting it to
+// a byte array first.
+func (w wrapWriteString) WriteString(v string) (int, error) {
+	return w.writer.Write([]byte(v))
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/map.go

@@ -0,0 +1,78 @@
+package query
+
+import (
+	"fmt"
+	"net/url"
+)
+
+// Map represents the encoding of Query maps. A Query map is a representation
+// of a mapping of arbitrary string keys to arbitrary values of a fixed type.
+// A Map differs from an Object in that the set of keys is not fixed, in that
+// the values must all be of the same type, and that map entries are ordered.
+// A serialized map might look like the following:
+//
+//	MapName.entry.1.key=Foo
+//	&MapName.entry.1.value=spam
+//	&MapName.entry.2.key=Bar
+//	&MapName.entry.2.value=eggs
+type Map struct {
+	// The query values to add the map to.
+	values url.Values
+	// The map's prefix, which includes the names of all parent structures
+	// and ends with the name of the object. For example, the prefix might be
+	// "ParentStructure.MapName". This prefix will be used to form the full
+	// keys for each key-value pair of the map. For example, a value might have
+	// the key "ParentStructure.MapName.1.value".
+	//
+	// While this is currently represented as a string that gets added to, it
+	// could also be represented as a stack that only gets condensed into a
+	// string when a finalized key is created. This could potentially reduce
+	// allocations.
+	prefix string
+	// Whether the map is flat or not. A map that is not flat will produce the
+	// following entries to the url.Values for a given key-value pair:
+	//     MapName.entry.1.KeyLocationName=mykey
+	//     MapName.entry.1.ValueLocationName=myvalue
+	// A map that is flat will produce the following:
+	//     MapName.1.KeyLocationName=mykey
+	//     MapName.1.ValueLocationName=myvalue
+	flat bool
+	// The location name of the key. In most cases this should be "key".
+	keyLocationName string
+	// The location name of the value. In most cases this should be "value".
+	valueLocationName string
+	// Elements are stored in values, so we keep track of the list size here.
+	size int32
+}
+
+func newMap(values url.Values, prefix string, flat bool, keyLocationName string, valueLocationName string) *Map {
+	return &Map{
+		values:            values,
+		prefix:            prefix,
+		flat:              flat,
+		keyLocationName:   keyLocationName,
+		valueLocationName: valueLocationName,
+	}
+}
+
+// Key adds the given named key to the Query map.
+// Returns a Value encoder that should be used to encode a Query value type.
+func (m *Map) Key(name string) Value {
+	// Query lists start a 1, so adjust the size first
+	m.size++
+	var key string
+	var value string
+	if m.flat {
+		key = fmt.Sprintf("%s.%d.%s", m.prefix, m.size, m.keyLocationName)
+		value = fmt.Sprintf("%s.%d.%s", m.prefix, m.size, m.valueLocationName)
+	} else {
+		key = fmt.Sprintf("%s.entry.%d.%s", m.prefix, m.size, m.keyLocationName)
+		value = fmt.Sprintf("%s.entry.%d.%s", m.prefix, m.size, m.valueLocationName)
+	}
+
+	// The key can only be a string, so we just go ahead and set it here
+	newValue(m.values, key, false).String(name)
+
+	// Maps can't have flat members
+	return newValue(m.values, value, false)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/middleware.go

@@ -0,0 +1,62 @@
+package query
+
+import (
+	"context"
+	"fmt"
+	"io/ioutil"
+
+	"github.com/aws/smithy-go/middleware"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+)
+
+// AddAsGetRequestMiddleware adds a middleware to the Serialize stack after the
+// operation serializer that will convert the query request body to a GET
+// operation with the query message in the HTTP request querystring.
+func AddAsGetRequestMiddleware(stack *middleware.Stack) error {
+	return stack.Serialize.Insert(&asGetRequest{}, "OperationSerializer", middleware.After)
+}
+
+type asGetRequest struct{}
+
+func (*asGetRequest) ID() string { return "Query:AsGetRequest" }
+
+func (m *asGetRequest) HandleSerialize(
+	ctx context.Context, input middleware.SerializeInput, next middleware.SerializeHandler,
+) (
+	out middleware.SerializeOutput, metadata middleware.Metadata, err error,
+) {
+	req, ok := input.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, fmt.Errorf("expect smithy HTTP Request, got %T", input.Request)
+	}
+
+	req.Method = "GET"
+
+	// If the stream is not set, nothing else to do.
+	stream := req.GetStream()
+	if stream == nil {
+		return next.HandleSerialize(ctx, input)
+	}
+
+	// Clear the stream since there will not be any body.
+	req.Header.Del("Content-Type")
+	req, err = req.SetStream(nil)
+	if err != nil {
+		return out, metadata, fmt.Errorf("unable update request body %w", err)
+	}
+	input.Request = req
+
+	// Update request query with the body's query string value.
+	delim := ""
+	if len(req.URL.RawQuery) != 0 {
+		delim = "&"
+	}
+
+	b, err := ioutil.ReadAll(stream)
+	if err != nil {
+		return out, metadata, fmt.Errorf("unable to get request body %w", err)
+	}
+	req.URL.RawQuery += delim + string(b)
+
+	return next.HandleSerialize(ctx, input)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/object.go

@@ -0,0 +1,68 @@
+package query
+
+import "net/url"
+
+// Object represents the encoding of Query structures and unions. A Query
+// object is a representation of a mapping of string keys to arbitrary
+// values where there is a fixed set of keys whose values each have their
+// own known type. A serialized object might look like the following:
+//
+//	ObjectName.Foo=value
+//	&ObjectName.Bar=5
+type Object struct {
+	// The query values to add the object to.
+	values url.Values
+	// The object's prefix, which includes the names of all parent structures
+	// and ends with the name of the object. For example, the prefix might be
+	// "ParentStructure.ObjectName". This prefix will be used to form the full
+	// keys for each member of the object. For example, a member might have the
+	// key "ParentStructure.ObjectName.MemberName".
+	//
+	// While this is currently represented as a string that gets added to, it
+	// could also be represented as a stack that only gets condensed into a
+	// string when a finalized key is created. This could potentially reduce
+	// allocations.
+	prefix string
+}
+
+func newObject(values url.Values, prefix string) *Object {
+	return &Object{
+		values: values,
+		prefix: prefix,
+	}
+}
+
+// Key adds the given named key to the Query object.
+// Returns a Value encoder that should be used to encode a Query value type.
+func (o *Object) Key(name string) Value {
+	return o.key(name, false)
+}
+
+// KeyWithValues adds the given named key to the Query object.
+// Returns a Value encoder that should be used to encode a Query list of values.
+func (o *Object) KeyWithValues(name string) Value {
+	return o.keyWithValues(name, false)
+}
+
+// FlatKey adds the given named key to the Query object.
+// Returns a Value encoder that should be used to encode a Query value type. The
+// value will be flattened if it is a map or array.
+func (o *Object) FlatKey(name string) Value {
+	return o.key(name, true)
+}
+
+func (o *Object) key(name string, flatValue bool) Value {
+	if o.prefix != "" {
+		// This uses string concatenation in place of fmt.Sprintf as fmt.Sprintf has a much higher resource overhead
+		return newValue(o.values, o.prefix+keySeparator+name, flatValue)
+	}
+	return newValue(o.values, name, flatValue)
+}
+
+func (o *Object) keyWithValues(name string, flatValue bool) Value {
+	if o.prefix != "" {
+		// This uses string concatenation in place of fmt.Sprintf as fmt.Sprintf has a much higher resource overhead
+		return newAppendValue(o.values, o.prefix+keySeparator+name, flatValue)
+	}
+	return newAppendValue(o.values, name, flatValue)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/value.go

@@ -0,0 +1,117 @@
+package query
+
+import (
+	"math/big"
+	"net/url"
+
+	"github.com/aws/smithy-go/encoding/httpbinding"
+)
+
+const keySeparator = "."
+
+// Value represents a Query Value type.
+type Value struct {
+	// The query values to add the value to.
+	values url.Values
+	// The value's key, which will form the prefix for complex types.
+	key string
+	// Whether the value should be flattened or not if it's a flattenable type.
+	flat       bool
+	queryValue httpbinding.QueryValue
+}
+
+func newValue(values url.Values, key string, flat bool) Value {
+	return Value{
+		values:     values,
+		key:        key,
+		flat:       flat,
+		queryValue: httpbinding.NewQueryValue(values, key, false),
+	}
+}
+
+func newAppendValue(values url.Values, key string, flat bool) Value {
+	return Value{
+		values:     values,
+		key:        key,
+		flat:       flat,
+		queryValue: httpbinding.NewQueryValue(values, key, true),
+	}
+}
+
+func newBaseValue(values url.Values) Value {
+	return Value{
+		values:     values,
+		queryValue: httpbinding.NewQueryValue(nil, "", false),
+	}
+}
+
+// Array returns a new Array encoder.
+func (qv Value) Array(locationName string) *Array {
+	return newArray(qv.values, qv.key, qv.flat, locationName)
+}
+
+// Object returns a new Object encoder.
+func (qv Value) Object() *Object {
+	return newObject(qv.values, qv.key)
+}
+
+// Map returns a new Map encoder.
+func (qv Value) Map(keyLocationName string, valueLocationName string) *Map {
+	return newMap(qv.values, qv.key, qv.flat, keyLocationName, valueLocationName)
+}
+
+// Base64EncodeBytes encodes v as a base64 query string value.
+// This is intended to enable compatibility with the JSON encoder.
+func (qv Value) Base64EncodeBytes(v []byte) {
+	qv.queryValue.Blob(v)
+}
+
+// Boolean encodes v as a query string value
+func (qv Value) Boolean(v bool) {
+	qv.queryValue.Boolean(v)
+}
+
+// String encodes v as a query string value
+func (qv Value) String(v string) {
+	qv.queryValue.String(v)
+}
+
+// Byte encodes v as a query string value
+func (qv Value) Byte(v int8) {
+	qv.queryValue.Byte(v)
+}
+
+// Short encodes v as a query string value
+func (qv Value) Short(v int16) {
+	qv.queryValue.Short(v)
+}
+
+// Integer encodes v as a query string value
+func (qv Value) Integer(v int32) {
+	qv.queryValue.Integer(v)
+}
+
+// Long encodes v as a query string value
+func (qv Value) Long(v int64) {
+	qv.queryValue.Long(v)
+}
+
+// Float encodes v as a query string value
+func (qv Value) Float(v float32) {
+	qv.queryValue.Float(v)
+}
+
+// Double encodes v as a query string value
+func (qv Value) Double(v float64) {
+	qv.queryValue.Double(v)
+}
+
+// BigInteger encodes v as a query string value
+func (qv Value) BigInteger(v *big.Int) {
+	qv.queryValue.BigInteger(v)
+}
+
+// BigDecimal encodes v as a query string value
+func (qv Value) BigDecimal(v *big.Float) {
+	qv.queryValue.BigDecimal(v)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/restjson/decoder_util.go

@@ -0,0 +1,85 @@
+package restjson
+
+import (
+	"encoding/json"
+	"io"
+	"strings"
+
+	"github.com/aws/smithy-go"
+)
+
+// GetErrorInfo util looks for code, __type, and message members in the
+// json body. These members are optionally available, and the function
+// returns the value of member if it is available. This function is useful to
+// identify the error code, msg in a REST JSON error response.
+func GetErrorInfo(decoder *json.Decoder) (errorType string, message string, err error) {
+	var errInfo struct {
+		Code    string
+		Type    string `json:"__type"`
+		Message string
+	}
+
+	err = decoder.Decode(&errInfo)
+	if err != nil {
+		if err == io.EOF {
+			return errorType, message, nil
+		}
+		return errorType, message, err
+	}
+
+	// assign error type
+	if len(errInfo.Code) != 0 {
+		errorType = errInfo.Code
+	} else if len(errInfo.Type) != 0 {
+		errorType = errInfo.Type
+	}
+
+	// assign error message
+	if len(errInfo.Message) != 0 {
+		message = errInfo.Message
+	}
+
+	// sanitize error
+	if len(errorType) != 0 {
+		errorType = SanitizeErrorCode(errorType)
+	}
+
+	return errorType, message, nil
+}
+
+// SanitizeErrorCode sanitizes the errorCode string .
+// The rule for sanitizing is if a `:` character is present, then take only the
+// contents before the first : character in the value.
+// If a # character is present, then take only the contents after the
+// first # character in the value.
+func SanitizeErrorCode(errorCode string) string {
+	if strings.ContainsAny(errorCode, ":") {
+		errorCode = strings.SplitN(errorCode, ":", 2)[0]
+	}
+
+	if strings.ContainsAny(errorCode, "#") {
+		errorCode = strings.SplitN(errorCode, "#", 2)[1]
+	}
+
+	return errorCode
+}
+
+// GetSmithyGenericAPIError returns smithy generic api error and an error interface.
+// Takes in json decoder, and error Code string as args. The function retrieves error message
+// and error code from the decoder body. If errorCode of length greater than 0 is passed in as
+// an argument, it is used instead.
+func GetSmithyGenericAPIError(decoder *json.Decoder, errorCode string) (*smithy.GenericAPIError, error) {
+	errorType, message, err := GetErrorInfo(decoder)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(errorCode) == 0 {
+		errorCode = errorType
+	}
+
+	return &smithy.GenericAPIError{
+		Code:    errorCode,
+		Message: message,
+	}, nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/xml/error_utils.go

@@ -0,0 +1,48 @@
+package xml
+
+import (
+	"encoding/xml"
+	"fmt"
+	"io"
+)
+
+// ErrorComponents represents the error response fields
+// that will be deserialized from an xml error response body
+type ErrorComponents struct {
+	Code      string
+	Message   string
+	RequestID string
+}
+
+// GetErrorResponseComponents returns the error fields from an xml error response body
+func GetErrorResponseComponents(r io.Reader, noErrorWrapping bool) (ErrorComponents, error) {
+	if noErrorWrapping {
+		var errResponse noWrappedErrorResponse
+		if err := xml.NewDecoder(r).Decode(&errResponse); err != nil && err != io.EOF {
+			return ErrorComponents{}, fmt.Errorf("error while deserializing xml error response: %w", err)
+		}
+		return ErrorComponents(errResponse), nil
+	}
+
+	var errResponse wrappedErrorResponse
+	if err := xml.NewDecoder(r).Decode(&errResponse); err != nil && err != io.EOF {
+		return ErrorComponents{}, fmt.Errorf("error while deserializing xml error response: %w", err)
+	}
+	return ErrorComponents(errResponse), nil
+}
+
+// noWrappedErrorResponse represents the error response body with
+// no internal Error wrapping
+type noWrappedErrorResponse struct {
+	Code      string `xml:"Code"`
+	Message   string `xml:"Message"`
+	RequestID string `xml:"RequestId"`
+}
+
+// wrappedErrorResponse represents the error response body
+// wrapped within Error
+type wrappedErrorResponse struct {
+	Code      string `xml:"Error>Code"`
+	Message   string `xml:"Error>Message"`
+	RequestID string `xml:"RequestId"`
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/ratelimit/none.go

@@ -0,0 +1,20 @@
+package ratelimit
+
+import "context"
+
+// None implements a no-op rate limiter which effectively disables client-side
+// rate limiting (also known as "retry quotas").
+//
+// GetToken does nothing and always returns a nil error. The returned
+// token-release function does nothing, and always returns a nil error.
+//
+// AddTokens does nothing and always returns a nil error.
+var None = &none{}
+
+type none struct{}
+
+func (*none) GetToken(ctx context.Context, cost uint) (func() error, error) {
+	return func() error { return nil }, nil
+}
+
+func (*none) AddTokens(v uint) error { return nil }

go/vendor/github.com/aws/aws-sdk-go-v2/aws/ratelimit/token_bucket.go

@@ -0,0 +1,96 @@
+package ratelimit
+
+import (
+	"sync"
+)
+
+// TokenBucket provides a concurrency safe utility for adding and removing
+// tokens from the available token bucket.
+type TokenBucket struct {
+	remainingTokens uint
+	maxCapacity     uint
+	minCapacity     uint
+	mu              sync.Mutex
+}
+
+// NewTokenBucket returns an initialized TokenBucket with the capacity
+// specified.
+func NewTokenBucket(i uint) *TokenBucket {
+	return &TokenBucket{
+		remainingTokens: i,
+		maxCapacity:     i,
+		minCapacity:     1,
+	}
+}
+
+// Retrieve attempts to reduce the available tokens by the amount requested. If
+// there are tokens available true will be returned along with the number of
+// available tokens remaining. If amount requested is larger than the available
+// capacity, false will be returned along with the available capacity. If the
+// amount is less than the available capacity, the capacity will be reduced by
+// that amount, and the remaining capacity and true will be returned.
+func (t *TokenBucket) Retrieve(amount uint) (available uint, retrieved bool) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	if amount > t.remainingTokens {
+		return t.remainingTokens, false
+	}
+
+	t.remainingTokens -= amount
+	return t.remainingTokens, true
+}
+
+// Refund returns the amount of tokens back to the available token bucket, up
+// to the initial capacity.
+func (t *TokenBucket) Refund(amount uint) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	// Capacity cannot exceed max capacity.
+	t.remainingTokens = uintMin(t.remainingTokens+amount, t.maxCapacity)
+}
+
+// Capacity returns the maximum capacity of tokens that the bucket could
+// contain.
+func (t *TokenBucket) Capacity() uint {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	return t.maxCapacity
+}
+
+// Remaining returns the number of tokens that remaining in the bucket.
+func (t *TokenBucket) Remaining() uint {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	return t.remainingTokens
+}
+
+// Resize adjusts the size of the token bucket. Returns the capacity remaining.
+func (t *TokenBucket) Resize(size uint) uint {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	t.maxCapacity = uintMax(size, t.minCapacity)
+
+	// Capacity needs to be capped at max capacity, if max size reduced.
+	t.remainingTokens = uintMin(t.remainingTokens, t.maxCapacity)
+
+	return t.remainingTokens
+}
+
+func uintMin(a, b uint) uint {
+	if a < b {
+		return a
+	}
+	return b
+}
+
+func uintMax(a, b uint) uint {
+	if a > b {
+		return a
+	}
+	return b
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/ratelimit/token_rate_limit.go

@@ -0,0 +1,83 @@
+package ratelimit
+
+import (
+	"context"
+	"fmt"
+)
+
+type rateToken struct {
+	tokenCost uint
+	bucket    *TokenBucket
+}
+
+func (t rateToken) release() error {
+	t.bucket.Refund(t.tokenCost)
+	return nil
+}
+
+// TokenRateLimit provides a Token Bucket RateLimiter implementation
+// that limits the overall number of retry attempts that can be made across
+// operation invocations.
+type TokenRateLimit struct {
+	bucket *TokenBucket
+}
+
+// NewTokenRateLimit returns an TokenRateLimit with default values.
+// Functional options can configure the retry rate limiter.
+func NewTokenRateLimit(tokens uint) *TokenRateLimit {
+	return &TokenRateLimit{
+		bucket: NewTokenBucket(tokens),
+	}
+}
+
+type canceledError struct {
+	Err error
+}
+
+func (c canceledError) CanceledError() bool { return true }
+func (c canceledError) Unwrap() error       { return c.Err }
+func (c canceledError) Error() string {
+	return fmt.Sprintf("canceled, %v", c.Err)
+}
+
+// GetToken may cause a available pool of retry quota to be
+// decremented. Will return an error if the decremented value can not be
+// reduced from the retry quota.
+func (l *TokenRateLimit) GetToken(ctx context.Context, cost uint) (func() error, error) {
+	select {
+	case <-ctx.Done():
+		return nil, canceledError{Err: ctx.Err()}
+	default:
+	}
+	if avail, ok := l.bucket.Retrieve(cost); !ok {
+		return nil, QuotaExceededError{Available: avail, Requested: cost}
+	}
+
+	return rateToken{
+		tokenCost: cost,
+		bucket:    l.bucket,
+	}.release, nil
+}
+
+// AddTokens increments the token bucket by a fixed amount.
+func (l *TokenRateLimit) AddTokens(v uint) error {
+	l.bucket.Refund(v)
+	return nil
+}
+
+// Remaining returns the number of remaining tokens in the bucket.
+func (l *TokenRateLimit) Remaining() uint {
+	return l.bucket.Remaining()
+}
+
+// QuotaExceededError provides the SDK error when the retries for a given
+// token bucket have been exhausted.
+type QuotaExceededError struct {
+	Available uint
+	Requested uint
+}
+
+func (e QuotaExceededError) Error() string {
+	return fmt.Sprintf("retry quota exceeded, %d available, %d requested",
+		e.Available, e.Requested)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/request.go

@@ -0,0 +1,25 @@
+package aws
+
+import (
+	"fmt"
+)
+
+// TODO remove replace with smithy.CanceledError
+
+// RequestCanceledError is the error that will be returned by an API request
+// that was canceled. Requests given a Context may return this error when
+// canceled.
+type RequestCanceledError struct {
+	Err error
+}
+
+// CanceledError returns true to satisfy interfaces checking for canceled errors.
+func (*RequestCanceledError) CanceledError() bool { return true }
+
+// Unwrap returns the underlying error, if there was one.
+func (e *RequestCanceledError) Unwrap() error {
+	return e.Err
+}
+func (e *RequestCanceledError) Error() string {
+	return fmt.Sprintf("request canceled, %v", e.Err)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/adaptive.go

@@ -0,0 +1,156 @@
+package retry
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/internal/sdk"
+)
+
+const (
+	// DefaultRequestCost is the cost of a single request from the adaptive
+	// rate limited token bucket.
+	DefaultRequestCost uint = 1
+)
+
+// DefaultThrottles provides the set of errors considered throttle errors that
+// are checked by default.
+var DefaultThrottles = []IsErrorThrottle{
+	ThrottleErrorCode{
+		Codes: DefaultThrottleErrorCodes,
+	},
+}
+
+// AdaptiveModeOptions provides the functional options for configuring the
+// adaptive retry mode, and delay behavior.
+type AdaptiveModeOptions struct {
+	// If the adaptive token bucket is empty, when an attempt will be made
+	// AdaptiveMode will sleep until a token is available. This can occur when
+	// attempts fail with throttle errors. Use this option to disable the sleep
+	// until token is available, and return error immediately.
+	FailOnNoAttemptTokens bool
+
+	// The cost of an attempt from the AdaptiveMode's adaptive token bucket.
+	RequestCost uint
+
+	// Set of strategies to determine if the attempt failed due to a throttle
+	// error.
+	//
+	// It is safe to append to this list in NewAdaptiveMode's functional options.
+	Throttles []IsErrorThrottle
+
+	// Set of options for standard retry mode that AdaptiveMode is built on top
+	// of. AdaptiveMode may apply its own defaults to Standard retry mode that
+	// are different than the defaults of NewStandard. Use these options to
+	// override the default options.
+	StandardOptions []func(*StandardOptions)
+}
+
+// AdaptiveMode provides an experimental retry strategy that expands on the
+// Standard retry strategy, adding client attempt rate limits. The attempt rate
+// limit is initially unrestricted, but becomes restricted when the attempt
+// fails with for a throttle error. When restricted AdaptiveMode may need to
+// sleep before an attempt is made, if too many throttles have been received.
+// AdaptiveMode's sleep can be canceled with context cancel. Set
+// AdaptiveModeOptions FailOnNoAttemptTokens to change the behavior from sleep,
+// to fail fast.
+//
+// Eventually unrestricted attempt rate limit will be restored once attempts no
+// longer are failing due to throttle errors.
+type AdaptiveMode struct {
+	options   AdaptiveModeOptions
+	throttles IsErrorThrottles
+
+	retryer   aws.RetryerV2
+	rateLimit *adaptiveRateLimit
+}
+
+// NewAdaptiveMode returns an initialized AdaptiveMode retry strategy.
+func NewAdaptiveMode(optFns ...func(*AdaptiveModeOptions)) *AdaptiveMode {
+	o := AdaptiveModeOptions{
+		RequestCost: DefaultRequestCost,
+		Throttles:   append([]IsErrorThrottle{}, DefaultThrottles...),
+	}
+	for _, fn := range optFns {
+		fn(&o)
+	}
+
+	return &AdaptiveMode{
+		options:   o,
+		throttles: IsErrorThrottles(o.Throttles),
+		retryer:   NewStandard(o.StandardOptions...),
+		rateLimit: newAdaptiveRateLimit(),
+	}
+}
+
+// IsErrorRetryable returns if the failed attempt is retryable. This check
+// should determine if the error can be retried, or if the error is
+// terminal.
+func (a *AdaptiveMode) IsErrorRetryable(err error) bool {
+	return a.retryer.IsErrorRetryable(err)
+}
+
+// MaxAttempts returns the maximum number of attempts that can be made for
+// an attempt before failing. A value of 0 implies that the attempt should
+// be retried until it succeeds if the errors are retryable.
+func (a *AdaptiveMode) MaxAttempts() int {
+	return a.retryer.MaxAttempts()
+}
+
+// RetryDelay returns the delay that should be used before retrying the
+// attempt. Will return error if the if the delay could not be determined.
+func (a *AdaptiveMode) RetryDelay(attempt int, opErr error) (
+	time.Duration, error,
+) {
+	return a.retryer.RetryDelay(attempt, opErr)
+}
+
+// GetRetryToken attempts to deduct the retry cost from the retry token pool.
+// Returning the token release function, or error.
+func (a *AdaptiveMode) GetRetryToken(ctx context.Context, opErr error) (
+	releaseToken func(error) error, err error,
+) {
+	return a.retryer.GetRetryToken(ctx, opErr)
+}
+
+// GetInitialToken returns the initial attempt token that can increment the
+// retry token pool if the attempt is successful.
+//
+// Deprecated: This method does not provide a way to block using Context,
+// nor can it return an error. Use RetryerV2, and GetAttemptToken instead. Only
+// present to implement Retryer interface.
+func (a *AdaptiveMode) GetInitialToken() (releaseToken func(error) error) {
+	return nopRelease
+}
+
+// GetAttemptToken returns the attempt token that can be used to rate limit
+// attempt calls. Will be used by the SDK's retry package's Attempt
+// middleware to get an attempt token prior to calling the temp and releasing
+// the attempt token after the attempt has been made.
+func (a *AdaptiveMode) GetAttemptToken(ctx context.Context) (func(error) error, error) {
+	for {
+		acquiredToken, waitTryAgain := a.rateLimit.AcquireToken(a.options.RequestCost)
+		if acquiredToken {
+			break
+		}
+		if a.options.FailOnNoAttemptTokens {
+			return nil, fmt.Errorf(
+				"unable to get attempt token, and FailOnNoAttemptTokens enables")
+		}
+
+		if err := sdk.SleepWithContext(ctx, waitTryAgain); err != nil {
+			return nil, fmt.Errorf("failed to wait for token to be available, %w", err)
+		}
+	}
+
+	return a.handleResponse, nil
+}
+
+func (a *AdaptiveMode) handleResponse(opErr error) error {
+	throttled := a.throttles.IsErrorThrottle(opErr).Bool()
+
+	a.rateLimit.Update(throttled)
+	return nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/adaptive_ratelimit.go

@@ -0,0 +1,158 @@
+package retry
+
+import (
+	"math"
+	"sync"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/internal/sdk"
+)
+
+type adaptiveRateLimit struct {
+	tokenBucketEnabled bool
+
+	smooth        float64
+	beta          float64
+	scaleConstant float64
+	minFillRate   float64
+
+	fillRate         float64
+	calculatedRate   float64
+	lastRefilled     time.Time
+	measuredTxRate   float64
+	lastTxRateBucket float64
+	requestCount     int64
+	lastMaxRate      float64
+	lastThrottleTime time.Time
+	timeWindow       float64
+
+	tokenBucket *adaptiveTokenBucket
+
+	mu sync.Mutex
+}
+
+func newAdaptiveRateLimit() *adaptiveRateLimit {
+	now := sdk.NowTime()
+	return &adaptiveRateLimit{
+		smooth:        0.8,
+		beta:          0.7,
+		scaleConstant: 0.4,
+
+		minFillRate: 0.5,
+
+		lastTxRateBucket: math.Floor(timeFloat64Seconds(now)),
+		lastThrottleTime: now,
+
+		tokenBucket: newAdaptiveTokenBucket(0),
+	}
+}
+
+func (a *adaptiveRateLimit) Enable(v bool) {
+	a.mu.Lock()
+	defer a.mu.Unlock()
+
+	a.tokenBucketEnabled = v
+}
+
+func (a *adaptiveRateLimit) AcquireToken(amount uint) (
+	tokenAcquired bool, waitTryAgain time.Duration,
+) {
+	a.mu.Lock()
+	defer a.mu.Unlock()
+
+	if !a.tokenBucketEnabled {
+		return true, 0
+	}
+
+	a.tokenBucketRefill()
+
+	available, ok := a.tokenBucket.Retrieve(float64(amount))
+	if !ok {
+		waitDur := float64Seconds((float64(amount) - available) / a.fillRate)
+		return false, waitDur
+	}
+
+	return true, 0
+}
+
+func (a *adaptiveRateLimit) Update(throttled bool) {
+	a.mu.Lock()
+	defer a.mu.Unlock()
+
+	a.updateMeasuredRate()
+
+	if throttled {
+		rateToUse := a.measuredTxRate
+		if a.tokenBucketEnabled {
+			rateToUse = math.Min(a.measuredTxRate, a.fillRate)
+		}
+
+		a.lastMaxRate = rateToUse
+		a.calculateTimeWindow()
+		a.lastThrottleTime = sdk.NowTime()
+		a.calculatedRate = a.cubicThrottle(rateToUse)
+		a.tokenBucketEnabled = true
+	} else {
+		a.calculateTimeWindow()
+		a.calculatedRate = a.cubicSuccess(sdk.NowTime())
+	}
+
+	newRate := math.Min(a.calculatedRate, 2*a.measuredTxRate)
+	a.tokenBucketUpdateRate(newRate)
+}
+
+func (a *adaptiveRateLimit) cubicSuccess(t time.Time) float64 {
+	dt := secondsFloat64(t.Sub(a.lastThrottleTime))
+	return (a.scaleConstant * math.Pow(dt-a.timeWindow, 3)) + a.lastMaxRate
+}
+
+func (a *adaptiveRateLimit) cubicThrottle(rateToUse float64) float64 {
+	return rateToUse * a.beta
+}
+
+func (a *adaptiveRateLimit) calculateTimeWindow() {
+	a.timeWindow = math.Pow((a.lastMaxRate*(1.-a.beta))/a.scaleConstant, 1./3.)
+}
+
+func (a *adaptiveRateLimit) tokenBucketUpdateRate(newRPS float64) {
+	a.tokenBucketRefill()
+	a.fillRate = math.Max(newRPS, a.minFillRate)
+	a.tokenBucket.Resize(newRPS)
+}
+
+func (a *adaptiveRateLimit) updateMeasuredRate() {
+	now := sdk.NowTime()
+	timeBucket := math.Floor(timeFloat64Seconds(now)*2.) / 2.
+	a.requestCount++
+
+	if timeBucket > a.lastTxRateBucket {
+		currentRate := float64(a.requestCount) / (timeBucket - a.lastTxRateBucket)
+		a.measuredTxRate = (currentRate * a.smooth) + (a.measuredTxRate * (1. - a.smooth))
+		a.requestCount = 0
+		a.lastTxRateBucket = timeBucket
+	}
+}
+
+func (a *adaptiveRateLimit) tokenBucketRefill() {
+	now := sdk.NowTime()
+	if a.lastRefilled.IsZero() {
+		a.lastRefilled = now
+		return
+	}
+
+	fillAmount := secondsFloat64(now.Sub(a.lastRefilled)) * a.fillRate
+	a.tokenBucket.Refund(fillAmount)
+	a.lastRefilled = now
+}
+
+func float64Seconds(v float64) time.Duration {
+	return time.Duration(v * float64(time.Second))
+}
+
+func secondsFloat64(v time.Duration) float64 {
+	return float64(v) / float64(time.Second)
+}
+
+func timeFloat64Seconds(v time.Time) float64 {
+	return float64(v.UnixNano()) / float64(time.Second)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/adaptive_token_bucket.go

@@ -0,0 +1,83 @@
+package retry
+
+import (
+	"math"
+	"sync"
+)
+
+// adaptiveTokenBucket provides a concurrency safe utility for adding and
+// removing tokens from the available token bucket.
+type adaptiveTokenBucket struct {
+	remainingTokens float64
+	maxCapacity     float64
+	minCapacity     float64
+	mu              sync.Mutex
+}
+
+// newAdaptiveTokenBucket returns an initialized adaptiveTokenBucket with the
+// capacity specified.
+func newAdaptiveTokenBucket(i float64) *adaptiveTokenBucket {
+	return &adaptiveTokenBucket{
+		remainingTokens: i,
+		maxCapacity:     i,
+		minCapacity:     1,
+	}
+}
+
+// Retrieve attempts to reduce the available tokens by the amount requested. If
+// there are tokens available true will be returned along with the number of
+// available tokens remaining. If amount requested is larger than the available
+// capacity, false will be returned along with the available capacity. If the
+// amount is less than the available capacity, the capacity will be reduced by
+// that amount, and the remaining capacity and true will be returned.
+func (t *adaptiveTokenBucket) Retrieve(amount float64) (available float64, retrieved bool) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	if amount > t.remainingTokens {
+		return t.remainingTokens, false
+	}
+
+	t.remainingTokens -= amount
+	return t.remainingTokens, true
+}
+
+// Refund returns the amount of tokens back to the available token bucket, up
+// to the initial capacity.
+func (t *adaptiveTokenBucket) Refund(amount float64) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	// Capacity cannot exceed max capacity.
+	t.remainingTokens = math.Min(t.remainingTokens+amount, t.maxCapacity)
+}
+
+// Capacity returns the maximum capacity of tokens that the bucket could
+// contain.
+func (t *adaptiveTokenBucket) Capacity() float64 {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	return t.maxCapacity
+}
+
+// Remaining returns the number of tokens that remaining in the bucket.
+func (t *adaptiveTokenBucket) Remaining() float64 {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	return t.remainingTokens
+}
+
+// Resize adjusts the size of the token bucket. Returns the capacity remaining.
+func (t *adaptiveTokenBucket) Resize(size float64) float64 {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+
+	t.maxCapacity = math.Max(size, t.minCapacity)
+
+	// Capacity needs to be capped at max capacity, if max size reduced.
+	t.remainingTokens = math.Min(t.remainingTokens, t.maxCapacity)
+
+	return t.remainingTokens
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/attempt_metrics.go

@@ -0,0 +1,51 @@
+package retry
+
+import (
+	"context"
+
+	"github.com/aws/smithy-go/metrics"
+	"github.com/aws/smithy-go/middleware"
+)
+
+type attemptMetrics struct {
+	Attempts metrics.Int64Counter
+	Errors   metrics.Int64Counter
+
+	AttemptDuration metrics.Float64Histogram
+}
+
+func newAttemptMetrics(meter metrics.Meter) (*attemptMetrics, error) {
+	m := &attemptMetrics{}
+	var err error
+
+	m.Attempts, err = meter.Int64Counter("client.call.attempts", func(o *metrics.InstrumentOptions) {
+		o.UnitLabel = "{attempt}"
+		o.Description = "The number of attempts for an individual operation"
+	})
+	if err != nil {
+		return nil, err
+	}
+	m.Errors, err = meter.Int64Counter("client.call.errors", func(o *metrics.InstrumentOptions) {
+		o.UnitLabel = "{error}"
+		o.Description = "The number of errors for an operation"
+	})
+	if err != nil {
+		return nil, err
+	}
+	m.AttemptDuration, err = meter.Float64Histogram("client.call.attempt_duration", func(o *metrics.InstrumentOptions) {
+		o.UnitLabel = "s"
+		o.Description = "The time it takes to connect to the service, send the request, and get back HTTP status code and headers (including time queued waiting to be sent)"
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return m, nil
+}
+
+func withOperationMetadata(ctx context.Context) metrics.RecordMetricOption {
+	return func(o *metrics.RecordMetricOptions) {
+		o.Properties.Set("rpc.service", middleware.GetServiceID(ctx))
+		o.Properties.Set("rpc.method", middleware.GetOperationName(ctx))
+	}
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/doc.go

@@ -0,0 +1,80 @@
+// Package retry provides interfaces and implementations for SDK request retry behavior.
+//
+// # Retryer Interface and Implementations
+//
+// This package defines Retryer interface that is used to either implement custom retry behavior
+// or to extend the existing retry implementations provided by the SDK. This package provides a single
+// retry implementation: Standard.
+//
+// # Standard
+//
+// Standard is the default retryer implementation used by service clients. The standard retryer is a rate limited
+// retryer that has a configurable max attempts to limit the number of retry attempts when a retryable error occurs.
+// In addition, the retryer uses a configurable token bucket to rate limit the retry attempts across the client,
+// and uses an additional delay policy to limit the time between a requests subsequent attempts.
+//
+// By default the standard retryer uses the DefaultRetryables slice of IsErrorRetryable types to determine whether
+// a given error is retryable. By default this list of retryables includes the following:
+//   - Retrying errors that implement the RetryableError method, and return true.
+//   - Connection Errors
+//   - Errors that implement a ConnectionError, Temporary, or Timeout method that return true.
+//   - Connection Reset Errors.
+//   - net.OpErr types that are dialing errors or are temporary.
+//   - HTTP Status Codes: 500, 502, 503, and 504.
+//   - API Error Codes
+//   - RequestTimeout, RequestTimeoutException
+//   - Throttling, ThrottlingException, ThrottledException, RequestThrottledException, TooManyRequestsException,
+//     RequestThrottled, SlowDown, EC2ThrottledException
+//   - ProvisionedThroughputExceededException, RequestLimitExceeded, BandwidthLimitExceeded, LimitExceededException
+//   - TransactionInProgressException, PriorRequestNotComplete
+//
+// The standard retryer will not retry a request in the event if the context associated with the request
+// has been cancelled. Applications must handle this case explicitly if they wish to retry with a different context
+// value.
+//
+// You can configure the standard retryer implementation to fit your applications by constructing a standard retryer
+// using the NewStandard function, and providing one more functional argument that mutate the StandardOptions
+// structure. StandardOptions provides the ability to modify the token bucket rate limiter, retryable error conditions,
+// and the retry delay policy.
+//
+// For example to modify the default retry attempts for the standard retryer:
+//
+//	// configure the custom retryer
+//	customRetry := retry.NewStandard(func(o *retry.StandardOptions) {
+//	    o.MaxAttempts = 5
+//	})
+//
+//	// create a service client with the retryer
+//	s3.NewFromConfig(cfg, func(o *s3.Options) {
+//	    o.Retryer = customRetry
+//	})
+//
+// # Utilities
+//
+// A number of package functions have been provided to easily wrap retryer implementations in an implementation agnostic
+// way. These are:
+//
+//	AddWithErrorCodes      - Provides the ability to add additional API error codes that should be considered retryable
+//	                        in addition to those considered retryable by the provided retryer.
+//
+//	AddWithMaxAttempts     - Provides the ability to set the max number of attempts for retrying a request by wrapping
+//	                         a retryer implementation.
+//
+//	AddWithMaxBackoffDelay - Provides the ability to set the max back off delay that can occur before retrying a
+//	                         request by wrapping a retryer implementation.
+//
+// The following package functions have been provided to easily satisfy different retry interfaces to further customize
+// a given retryer's behavior:
+//
+//	BackoffDelayerFunc   - Can be used to wrap a function to satisfy the BackoffDelayer interface. For example,
+//	                       you can use this method to easily create custom back off policies to be used with the
+//	                       standard retryer.
+//
+//	IsErrorRetryableFunc - Can be used to wrap a function to satisfy the IsErrorRetryable interface. For example,
+//	                       this can be used to extend the standard retryer to add additional logic to determine if an
+//	                       error should be retried.
+//
+//	IsErrorTimeoutFunc   - Can be used to wrap a function to satisfy IsErrorTimeout interface. For example,
+//	                       this can be used to extend the standard retryer to add additional logic to determine if an
+//	                        error should be considered a timeout.
+package retry

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/errors.go

@@ -0,0 +1,20 @@
+package retry
+
+import "fmt"
+
+// MaxAttemptsError provides the error when the maximum number of attempts have
+// been exceeded.
+type MaxAttemptsError struct {
+	Attempt int
+	Err     error
+}
+
+func (e *MaxAttemptsError) Error() string {
+	return fmt.Sprintf("exceeded maximum number of attempts, %d, %v", e.Attempt, e.Err)
+}
+
+// Unwrap returns the nested error causing the max attempts error. Provides the
+// implementation for errors.Is and errors.As to unwrap nested errors.
+func (e *MaxAttemptsError) Unwrap() error {
+	return e.Err
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/jitter_backoff.go

@@ -0,0 +1,49 @@
+package retry
+
+import (
+	"math"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/internal/rand"
+	"github.com/aws/aws-sdk-go-v2/internal/timeconv"
+)
+
+// ExponentialJitterBackoff provides backoff delays with jitter based on the
+// number of attempts.
+type ExponentialJitterBackoff struct {
+	maxBackoff time.Duration
+	// precomputed number of attempts needed to reach max backoff.
+	maxBackoffAttempts float64
+
+	randFloat64 func() (float64, error)
+}
+
+// NewExponentialJitterBackoff returns an ExponentialJitterBackoff configured
+// for the max backoff.
+func NewExponentialJitterBackoff(maxBackoff time.Duration) *ExponentialJitterBackoff {
+	return &ExponentialJitterBackoff{
+		maxBackoff: maxBackoff,
+		maxBackoffAttempts: math.Log2(
+			float64(maxBackoff) / float64(time.Second)),
+		randFloat64: rand.CryptoRandFloat64,
+	}
+}
+
+// BackoffDelay returns the duration to wait before the next attempt should be
+// made. Returns an error if unable get a duration.
+func (j *ExponentialJitterBackoff) BackoffDelay(attempt int, err error) (time.Duration, error) {
+	if attempt > int(j.maxBackoffAttempts) {
+		return j.maxBackoff, nil
+	}
+
+	b, err := j.randFloat64()
+	if err != nil {
+		return 0, err
+	}
+
+	// [0.0, 1.0) * 2 ^ attempts
+	ri := int64(1 << uint64(attempt))
+	delaySeconds := b * float64(ri)
+
+	return timeconv.FloatSecondsDur(delaySeconds), nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/metadata.go

@@ -0,0 +1,52 @@
+package retry
+
+import (
+	awsmiddle "github.com/aws/aws-sdk-go-v2/aws/middleware"
+	"github.com/aws/smithy-go/middleware"
+)
+
+// attemptResultsKey is a metadata accessor key to retrieve metadata
+// for all request attempts.
+type attemptResultsKey struct {
+}
+
+// GetAttemptResults retrieves attempts results from middleware metadata.
+func GetAttemptResults(metadata middleware.Metadata) (AttemptResults, bool) {
+	m, ok := metadata.Get(attemptResultsKey{}).(AttemptResults)
+	return m, ok
+}
+
+// AttemptResults represents struct containing metadata returned by all request attempts.
+type AttemptResults struct {
+
+	// Results is a slice consisting attempt result from all request attempts.
+	// Results are stored in order request attempt is made.
+	Results []AttemptResult
+}
+
+// AttemptResult represents attempt result returned by a single request attempt.
+type AttemptResult struct {
+
+	// Err is the error if received for the request attempt.
+	Err error
+
+	// Retryable denotes if request may be retried. This states if an
+	// error is considered retryable.
+	Retryable bool
+
+	// Retried indicates if this request was retried.
+	Retried bool
+
+	// ResponseMetadata is any existing metadata passed via the response middlewares.
+	ResponseMetadata middleware.Metadata
+}
+
+// addAttemptResults adds attempt results to middleware metadata
+func addAttemptResults(metadata *middleware.Metadata, v AttemptResults) {
+	metadata.Set(attemptResultsKey{}, v)
+}
+
+// GetRawResponse returns raw response recorded for the attempt result
+func (a AttemptResult) GetRawResponse() interface{} {
+	return awsmiddle.GetRawResponse(a.ResponseMetadata)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/middleware.go

@@ -0,0 +1,418 @@
+package retry
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	internalcontext "github.com/aws/aws-sdk-go-v2/internal/context"
+	"github.com/aws/smithy-go"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	awsmiddle "github.com/aws/aws-sdk-go-v2/aws/middleware"
+	"github.com/aws/aws-sdk-go-v2/internal/sdk"
+	"github.com/aws/smithy-go/logging"
+	"github.com/aws/smithy-go/metrics"
+	smithymiddle "github.com/aws/smithy-go/middleware"
+	"github.com/aws/smithy-go/tracing"
+	"github.com/aws/smithy-go/transport/http"
+)
+
+// RequestCloner is a function that can take an input request type and clone
+// the request for use in a subsequent retry attempt.
+type RequestCloner func(interface{}) interface{}
+
+type retryMetadata struct {
+	AttemptNum       int
+	AttemptTime      time.Time
+	MaxAttempts      int
+	AttemptClockSkew time.Duration
+}
+
+// Attempt is a Smithy Finalize middleware that handles retry attempts using
+// the provided Retryer implementation.
+type Attempt struct {
+	// Enable the logging of retry attempts performed by the SDK. This will
+	// include logging retry attempts, unretryable errors, and when max
+	// attempts are reached.
+	LogAttempts bool
+
+	// A Meter instance for recording retry-related metrics.
+	OperationMeter metrics.Meter
+
+	retryer       aws.RetryerV2
+	requestCloner RequestCloner
+}
+
+// define the threshold at which we will consider certain kind of errors to be probably
+// caused by clock skew
+const skewThreshold = 4 * time.Minute
+
+// NewAttemptMiddleware returns a new Attempt retry middleware.
+func NewAttemptMiddleware(retryer aws.Retryer, requestCloner RequestCloner, optFns ...func(*Attempt)) *Attempt {
+	m := &Attempt{
+		retryer:       wrapAsRetryerV2(retryer),
+		requestCloner: requestCloner,
+	}
+	for _, fn := range optFns {
+		fn(m)
+	}
+	if m.OperationMeter == nil {
+		m.OperationMeter = metrics.NopMeterProvider{}.Meter("")
+	}
+
+	return m
+}
+
+// ID returns the middleware identifier
+func (r *Attempt) ID() string { return "Retry" }
+
+func (r Attempt) logf(logger logging.Logger, classification logging.Classification, format string, v ...interface{}) {
+	if !r.LogAttempts {
+		return
+	}
+	logger.Logf(classification, format, v...)
+}
+
+// HandleFinalize utilizes the provider Retryer implementation to attempt
+// retries over the next handler
+func (r *Attempt) HandleFinalize(ctx context.Context, in smithymiddle.FinalizeInput, next smithymiddle.FinalizeHandler) (
+	out smithymiddle.FinalizeOutput, metadata smithymiddle.Metadata, err error,
+) {
+	var attemptNum int
+	var attemptClockSkew time.Duration
+	var attemptResults AttemptResults
+
+	maxAttempts := r.retryer.MaxAttempts()
+	releaseRetryToken := nopRelease
+
+	retryMetrics, err := newAttemptMetrics(r.OperationMeter)
+	if err != nil {
+		return out, metadata, err
+	}
+
+	for {
+		attemptNum++
+		attemptInput := in
+		attemptInput.Request = r.requestCloner(attemptInput.Request)
+
+		// Record the metadata for the for attempt being started.
+		attemptCtx := setRetryMetadata(ctx, retryMetadata{
+			AttemptNum:       attemptNum,
+			AttemptTime:      sdk.NowTime().UTC(),
+			MaxAttempts:      maxAttempts,
+			AttemptClockSkew: attemptClockSkew,
+		})
+
+		// Setting clock skew to be used on other context (like signing)
+		ctx = internalcontext.SetAttemptSkewContext(ctx, attemptClockSkew)
+
+		var attemptResult AttemptResult
+
+		attemptCtx, span := tracing.StartSpan(attemptCtx, "Attempt", func(o *tracing.SpanOptions) {
+			o.Properties.Set("operation.attempt", attemptNum)
+		})
+		retryMetrics.Attempts.Add(ctx, 1, withOperationMetadata(ctx))
+
+		start := sdk.NowTime()
+		out, attemptResult, releaseRetryToken, err = r.handleAttempt(attemptCtx, attemptInput, releaseRetryToken, next)
+		elapsed := sdk.NowTime().Sub(start)
+
+		retryMetrics.AttemptDuration.Record(ctx, float64(elapsed)/1e9, withOperationMetadata(ctx))
+		if err != nil {
+			retryMetrics.Errors.Add(ctx, 1, withOperationMetadata(ctx), func(o *metrics.RecordMetricOptions) {
+				o.Properties.Set("exception.type", errorType(err))
+			})
+		}
+
+		span.End()
+
+		attemptClockSkew, _ = awsmiddle.GetAttemptSkew(attemptResult.ResponseMetadata)
+
+		// AttemptResult Retried states that the attempt was not successful, and
+		// should be retried.
+		shouldRetry := attemptResult.Retried
+
+		// Add attempt metadata to list of all attempt metadata
+		attemptResults.Results = append(attemptResults.Results, attemptResult)
+
+		if !shouldRetry {
+			// Ensure the last response's metadata is used as the bases for result
+			// metadata returned by the stack. The Slice of attempt results
+			// will be added to this cloned metadata.
+			metadata = attemptResult.ResponseMetadata.Clone()
+
+			break
+		}
+	}
+
+	addAttemptResults(&metadata, attemptResults)
+	return out, metadata, err
+}
+
+// handleAttempt handles an individual request attempt.
+func (r *Attempt) handleAttempt(
+	ctx context.Context, in smithymiddle.FinalizeInput, releaseRetryToken func(error) error, next smithymiddle.FinalizeHandler,
+) (
+	out smithymiddle.FinalizeOutput, attemptResult AttemptResult, _ func(error) error, err error,
+) {
+	defer func() {
+		attemptResult.Err = err
+	}()
+
+	// Short circuit if this attempt never can succeed because the context is
+	// canceled. This reduces the chance of token pools being modified for
+	// attempts that will not be made
+	select {
+	case <-ctx.Done():
+		return out, attemptResult, nopRelease, ctx.Err()
+	default:
+	}
+
+	//------------------------------
+	// Get Attempt Token
+	//------------------------------
+	releaseAttemptToken, err := r.retryer.GetAttemptToken(ctx)
+	if err != nil {
+		return out, attemptResult, nopRelease, fmt.Errorf(
+			"failed to get retry Send token, %w", err)
+	}
+
+	//------------------------------
+	// Send Attempt
+	//------------------------------
+	logger := smithymiddle.GetLogger(ctx)
+	service, operation := awsmiddle.GetServiceID(ctx), awsmiddle.GetOperationName(ctx)
+	retryMetadata, _ := getRetryMetadata(ctx)
+	attemptNum := retryMetadata.AttemptNum
+	maxAttempts := retryMetadata.MaxAttempts
+
+	// Following attempts must ensure the request payload stream starts in a
+	// rewound state.
+	if attemptNum > 1 {
+		if rewindable, ok := in.Request.(interface{ RewindStream() error }); ok {
+			if rewindErr := rewindable.RewindStream(); rewindErr != nil {
+				return out, attemptResult, nopRelease, fmt.Errorf(
+					"failed to rewind transport stream for retry, %w", rewindErr)
+			}
+		}
+
+		r.logf(logger, logging.Debug, "retrying request %s/%s, attempt %d",
+			service, operation, attemptNum)
+	}
+
+	var metadata smithymiddle.Metadata
+	out, metadata, err = next.HandleFinalize(ctx, in)
+	attemptResult.ResponseMetadata = metadata
+
+	//------------------------------
+	// Bookkeeping
+	//------------------------------
+	// Release the retry token based on the state of the attempt's error (if any).
+	if releaseError := releaseRetryToken(err); releaseError != nil && err != nil {
+		return out, attemptResult, nopRelease, fmt.Errorf(
+			"failed to release retry token after request error, %w", err)
+	}
+	// Release the attempt token based on the state of the attempt's error (if any).
+	if releaseError := releaseAttemptToken(err); releaseError != nil && err != nil {
+		return out, attemptResult, nopRelease, fmt.Errorf(
+			"failed to release initial token after request error, %w", err)
+	}
+	// If there was no error making the attempt, nothing further to do. There
+	// will be nothing to retry.
+	if err == nil {
+		return out, attemptResult, nopRelease, err
+	}
+
+	err = wrapAsClockSkew(ctx, err)
+
+	//------------------------------
+	// Is Retryable and Should Retry
+	//------------------------------
+	// If the attempt failed with an unretryable error, nothing further to do
+	// but return, and inform the caller about the terminal failure.
+	retryable := r.retryer.IsErrorRetryable(err)
+	if !retryable {
+		r.logf(logger, logging.Debug, "request failed with unretryable error %v", err)
+		return out, attemptResult, nopRelease, err
+	}
+
+	// set retryable to true
+	attemptResult.Retryable = true
+
+	// Once the maximum number of attempts have been exhausted there is nothing
+	// further to do other than inform the caller about the terminal failure.
+	if maxAttempts > 0 && attemptNum >= maxAttempts {
+		r.logf(logger, logging.Debug, "max retry attempts exhausted, max %d", maxAttempts)
+		err = &MaxAttemptsError{
+			Attempt: attemptNum,
+			Err:     err,
+		}
+		return out, attemptResult, nopRelease, err
+	}
+
+	//------------------------------
+	// Get Retry (aka Retry Quota) Token
+	//------------------------------
+	// Get a retry token that will be released after the
+	releaseRetryToken, retryTokenErr := r.retryer.GetRetryToken(ctx, err)
+	if retryTokenErr != nil {
+		return out, attemptResult, nopRelease, retryTokenErr
+	}
+
+	//------------------------------
+	// Retry Delay and Sleep
+	//------------------------------
+	// Get the retry delay before another attempt can be made, and sleep for
+	// that time. Potentially early exist if the sleep is canceled via the
+	// context.
+	retryDelay, reqErr := r.retryer.RetryDelay(attemptNum, err)
+	if reqErr != nil {
+		return out, attemptResult, releaseRetryToken, reqErr
+	}
+	if reqErr = sdk.SleepWithContext(ctx, retryDelay); reqErr != nil {
+		err = &aws.RequestCanceledError{Err: reqErr}
+		return out, attemptResult, releaseRetryToken, err
+	}
+
+	// The request should be re-attempted.
+	attemptResult.Retried = true
+
+	return out, attemptResult, releaseRetryToken, err
+}
+
+// errors that, if detected when we know there's a clock skew,
+// can be retried and have a high chance of success
+var possibleSkewCodes = map[string]struct{}{
+	"InvalidSignatureException": {},
+	"SignatureDoesNotMatch":     {},
+	"AuthFailure":               {},
+}
+
+var definiteSkewCodes = map[string]struct{}{
+	"RequestExpired":       {},
+	"RequestInTheFuture":   {},
+	"RequestTimeTooSkewed": {},
+}
+
+// wrapAsClockSkew checks if this error could be related to a clock skew
+// error and if so, wrap the error.
+func wrapAsClockSkew(ctx context.Context, err error) error {
+	var v interface{ ErrorCode() string }
+	if !errors.As(err, &v) {
+		return err
+	}
+	if _, ok := definiteSkewCodes[v.ErrorCode()]; ok {
+		return &retryableClockSkewError{Err: err}
+	}
+	_, isPossibleSkewCode := possibleSkewCodes[v.ErrorCode()]
+	if skew := internalcontext.GetAttemptSkewContext(ctx); skew > skewThreshold && isPossibleSkewCode {
+		return &retryableClockSkewError{Err: err}
+	}
+	return err
+}
+
+// MetricsHeader attaches SDK request metric header for retries to the transport
+type MetricsHeader struct{}
+
+// ID returns the middleware identifier
+func (r *MetricsHeader) ID() string {
+	return "RetryMetricsHeader"
+}
+
+// HandleFinalize attaches the SDK request metric header to the transport layer
+func (r MetricsHeader) HandleFinalize(ctx context.Context, in smithymiddle.FinalizeInput, next smithymiddle.FinalizeHandler) (
+	out smithymiddle.FinalizeOutput, metadata smithymiddle.Metadata, err error,
+) {
+	retryMetadata, _ := getRetryMetadata(ctx)
+
+	const retryMetricHeader = "Amz-Sdk-Request"
+	var parts []string
+
+	parts = append(parts, "attempt="+strconv.Itoa(retryMetadata.AttemptNum))
+	if retryMetadata.MaxAttempts != 0 {
+		parts = append(parts, "max="+strconv.Itoa(retryMetadata.MaxAttempts))
+	}
+
+	var ttl time.Time
+	if deadline, ok := ctx.Deadline(); ok {
+		ttl = deadline
+	}
+
+	// Only append the TTL if it can be determined.
+	if !ttl.IsZero() && retryMetadata.AttemptClockSkew > 0 {
+		const unixTimeFormat = "20060102T150405Z"
+		ttl = ttl.Add(retryMetadata.AttemptClockSkew)
+		parts = append(parts, "ttl="+ttl.Format(unixTimeFormat))
+	}
+
+	switch req := in.Request.(type) {
+	case *http.Request:
+		req.Header[retryMetricHeader] = append(req.Header[retryMetricHeader][:0], strings.Join(parts, "; "))
+	default:
+		return out, metadata, fmt.Errorf("unknown transport type %T", req)
+	}
+
+	return next.HandleFinalize(ctx, in)
+}
+
+type retryMetadataKey struct{}
+
+// getRetryMetadata retrieves retryMetadata from the context and a bool
+// indicating if it was set.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func getRetryMetadata(ctx context.Context) (metadata retryMetadata, ok bool) {
+	metadata, ok = smithymiddle.GetStackValue(ctx, retryMetadataKey{}).(retryMetadata)
+	return metadata, ok
+}
+
+// setRetryMetadata sets the retryMetadata on the context.
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func setRetryMetadata(ctx context.Context, metadata retryMetadata) context.Context {
+	return smithymiddle.WithStackValue(ctx, retryMetadataKey{}, metadata)
+}
+
+// AddRetryMiddlewaresOptions is the set of options that can be passed to
+// AddRetryMiddlewares for configuring retry associated middleware.
+type AddRetryMiddlewaresOptions struct {
+	Retryer aws.Retryer
+
+	// Enable the logging of retry attempts performed by the SDK. This will
+	// include logging retry attempts, unretryable errors, and when max
+	// attempts are reached.
+	LogRetryAttempts bool
+}
+
+// AddRetryMiddlewares adds retry middleware to operation middleware stack
+func AddRetryMiddlewares(stack *smithymiddle.Stack, options AddRetryMiddlewaresOptions) error {
+	attempt := NewAttemptMiddleware(options.Retryer, http.RequestCloner, func(middleware *Attempt) {
+		middleware.LogAttempts = options.LogRetryAttempts
+	})
+
+	// index retry to before signing, if signing exists
+	if err := stack.Finalize.Insert(attempt, "Signing", smithymiddle.Before); err != nil {
+		return err
+	}
+
+	if err := stack.Finalize.Insert(&MetricsHeader{}, attempt.ID(), smithymiddle.After); err != nil {
+		return err
+	}
+	return nil
+}
+
+// Determines the value of exception.type for metrics purposes. We prefer an
+// API-specific error code, otherwise it's just the Go type for the value.
+func errorType(err error) string {
+	var terr smithy.APIError
+	if errors.As(err, &terr) {
+		return terr.ErrorCode()
+	}
+	return fmt.Sprintf("%T", err)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/retry.go

@@ -0,0 +1,90 @@
+package retry
+
+import (
+	"context"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+)
+
+// AddWithErrorCodes returns a Retryer with additional error codes considered
+// for determining if the error should be retried.
+func AddWithErrorCodes(r aws.Retryer, codes ...string) aws.Retryer {
+	retryable := &RetryableErrorCode{
+		Codes: map[string]struct{}{},
+	}
+	for _, c := range codes {
+		retryable.Codes[c] = struct{}{}
+	}
+
+	return &withIsErrorRetryable{
+		RetryerV2: wrapAsRetryerV2(r),
+		Retryable: retryable,
+	}
+}
+
+type withIsErrorRetryable struct {
+	aws.RetryerV2
+	Retryable IsErrorRetryable
+}
+
+func (r *withIsErrorRetryable) IsErrorRetryable(err error) bool {
+	if v := r.Retryable.IsErrorRetryable(err); v != aws.UnknownTernary {
+		return v.Bool()
+	}
+	return r.RetryerV2.IsErrorRetryable(err)
+}
+
+// AddWithMaxAttempts returns a Retryer with MaxAttempts set to the value
+// specified.
+func AddWithMaxAttempts(r aws.Retryer, max int) aws.Retryer {
+	return &withMaxAttempts{
+		RetryerV2: wrapAsRetryerV2(r),
+		Max:       max,
+	}
+}
+
+type withMaxAttempts struct {
+	aws.RetryerV2
+	Max int
+}
+
+func (w *withMaxAttempts) MaxAttempts() int {
+	return w.Max
+}
+
+// AddWithMaxBackoffDelay returns a retryer wrapping the passed in retryer
+// overriding the RetryDelay behavior for a alternate minimum initial backoff
+// delay.
+func AddWithMaxBackoffDelay(r aws.Retryer, delay time.Duration) aws.Retryer {
+	return &withMaxBackoffDelay{
+		RetryerV2: wrapAsRetryerV2(r),
+		backoff:   NewExponentialJitterBackoff(delay),
+	}
+}
+
+type withMaxBackoffDelay struct {
+	aws.RetryerV2
+	backoff *ExponentialJitterBackoff
+}
+
+func (r *withMaxBackoffDelay) RetryDelay(attempt int, err error) (time.Duration, error) {
+	return r.backoff.BackoffDelay(attempt, err)
+}
+
+type wrappedAsRetryerV2 struct {
+	aws.Retryer
+}
+
+func wrapAsRetryerV2(r aws.Retryer) aws.RetryerV2 {
+	v, ok := r.(aws.RetryerV2)
+	if !ok {
+		v = wrappedAsRetryerV2{Retryer: r}
+	}
+
+	return v
+}
+
+func (w wrappedAsRetryerV2) GetAttemptToken(context.Context) (func(error) error, error) {
+	return w.Retryer.GetInitialToken(), nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/retryable_error.go

@@ -0,0 +1,228 @@
+package retry
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"net/url"
+	"strings"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+)
+
+// IsErrorRetryable provides the interface of an implementation to determine if
+// a error as the result of an operation is retryable.
+type IsErrorRetryable interface {
+	IsErrorRetryable(error) aws.Ternary
+}
+
+// IsErrorRetryables is a collection of checks to determine of the error is
+// retryable.  Iterates through the checks and returns the state of retryable
+// if any check returns something other than unknown.
+type IsErrorRetryables []IsErrorRetryable
+
+// IsErrorRetryable returns if the error is retryable if any of the checks in
+// the list return a value other than unknown.
+func (r IsErrorRetryables) IsErrorRetryable(err error) aws.Ternary {
+	for _, re := range r {
+		if v := re.IsErrorRetryable(err); v != aws.UnknownTernary {
+			return v
+		}
+	}
+	return aws.UnknownTernary
+}
+
+// IsErrorRetryableFunc wraps a function with the IsErrorRetryable interface.
+type IsErrorRetryableFunc func(error) aws.Ternary
+
+// IsErrorRetryable returns if the error is retryable.
+func (fn IsErrorRetryableFunc) IsErrorRetryable(err error) aws.Ternary {
+	return fn(err)
+}
+
+// RetryableError is an IsErrorRetryable implementation which uses the
+// optional interface Retryable on the error value to determine if the error is
+// retryable.
+type RetryableError struct{}
+
+// IsErrorRetryable returns if the error is retryable if it satisfies the
+// Retryable interface, and returns if the attempt should be retried.
+func (RetryableError) IsErrorRetryable(err error) aws.Ternary {
+	var v interface{ RetryableError() bool }
+
+	if !errors.As(err, &v) {
+		return aws.UnknownTernary
+	}
+
+	return aws.BoolTernary(v.RetryableError())
+}
+
+// NoRetryCanceledError detects if the error was an request canceled error and
+// returns if so.
+type NoRetryCanceledError struct{}
+
+// IsErrorRetryable returns the error is not retryable if the request was
+// canceled.
+func (NoRetryCanceledError) IsErrorRetryable(err error) aws.Ternary {
+	var v interface{ CanceledError() bool }
+
+	if !errors.As(err, &v) {
+		return aws.UnknownTernary
+	}
+
+	if v.CanceledError() {
+		return aws.FalseTernary
+	}
+	return aws.UnknownTernary
+}
+
+// RetryableConnectionError determines if the underlying error is an HTTP
+// connection and returns if it should be retried.
+//
+// Includes errors such as connection reset, connection refused, net dial,
+// temporary, and timeout errors.
+type RetryableConnectionError struct{}
+
+// IsErrorRetryable returns if the error is caused by and HTTP connection
+// error, and should be retried.
+func (r RetryableConnectionError) IsErrorRetryable(err error) aws.Ternary {
+	if err == nil {
+		return aws.UnknownTernary
+	}
+	var retryable bool
+
+	var conErr interface{ ConnectionError() bool }
+	var tempErr interface{ Temporary() bool }
+	var timeoutErr interface{ Timeout() bool }
+	var urlErr *url.Error
+	var netOpErr *net.OpError
+	var dnsError *net.DNSError
+
+	if errors.As(err, &dnsError) {
+		// NXDOMAIN errors should not be retried
+		if dnsError.IsNotFound {
+			return aws.BoolTernary(false)
+		}
+
+		// if !dnsError.Temporary(), error may or may not be temporary,
+		// (i.e. !Temporary() =/=> !retryable) so we should fall through to
+		// remaining checks
+		if dnsError.Temporary() {
+			return aws.BoolTernary(true)
+		}
+	}
+
+	switch {
+	case errors.As(err, &conErr) && conErr.ConnectionError():
+		retryable = true
+
+	case strings.Contains(err.Error(), "use of closed network connection"):
+		fallthrough
+	case strings.Contains(err.Error(), "connection reset"):
+		// The errors "connection reset" and "use of closed network connection"
+		// are effectively the same. It appears to be the difference between
+		// sync and async read of TCP RST in the stdlib's net.Conn read loop.
+		// see #2737
+		retryable = true
+
+	case errors.As(err, &urlErr):
+		// Refused connections should be retried as the service may not yet be
+		// running on the port. Go TCP dial considers refused connections as
+		// not temporary.
+		if strings.Contains(urlErr.Error(), "connection refused") {
+			retryable = true
+		} else {
+			return r.IsErrorRetryable(errors.Unwrap(urlErr))
+		}
+
+	case errors.As(err, &netOpErr):
+		// Network dial, or temporary network errors are always retryable.
+		if strings.EqualFold(netOpErr.Op, "dial") || netOpErr.Temporary() {
+			retryable = true
+		} else {
+			return r.IsErrorRetryable(errors.Unwrap(netOpErr))
+		}
+
+	case errors.As(err, &tempErr) && tempErr.Temporary():
+		// Fallback to the generic temporary check, with temporary errors
+		// retryable.
+		retryable = true
+
+	case errors.As(err, &timeoutErr) && timeoutErr.Timeout():
+		// Fallback to the generic timeout check, with timeout errors
+		// retryable.
+		retryable = true
+
+	default:
+		return aws.UnknownTernary
+	}
+
+	return aws.BoolTernary(retryable)
+
+}
+
+// RetryableHTTPStatusCode provides a IsErrorRetryable based on HTTP status
+// codes.
+type RetryableHTTPStatusCode struct {
+	Codes map[int]struct{}
+}
+
+// IsErrorRetryable return if the passed in error is retryable based on the
+// HTTP status code.
+func (r RetryableHTTPStatusCode) IsErrorRetryable(err error) aws.Ternary {
+	var v interface{ HTTPStatusCode() int }
+
+	if !errors.As(err, &v) {
+		return aws.UnknownTernary
+	}
+
+	_, ok := r.Codes[v.HTTPStatusCode()]
+	if !ok {
+		return aws.UnknownTernary
+	}
+
+	return aws.TrueTernary
+}
+
+// RetryableErrorCode determines if an attempt should be retried based on the
+// API error code.
+type RetryableErrorCode struct {
+	Codes map[string]struct{}
+}
+
+// IsErrorRetryable return if the error is retryable based on the error codes.
+// Returns unknown if the error doesn't have a code or it is unknown.
+func (r RetryableErrorCode) IsErrorRetryable(err error) aws.Ternary {
+	var v interface{ ErrorCode() string }
+
+	if !errors.As(err, &v) {
+		return aws.UnknownTernary
+	}
+
+	_, ok := r.Codes[v.ErrorCode()]
+	if !ok {
+		return aws.UnknownTernary
+	}
+
+	return aws.TrueTernary
+}
+
+// retryableClockSkewError marks errors that can be caused by clock skew
+// (difference between server time and client time).
+// This is returned when there's certain confidence that adjusting the client time
+// could allow a retry to succeed
+type retryableClockSkewError struct{ Err error }
+
+func (e *retryableClockSkewError) Error() string {
+	return fmt.Sprintf("Probable clock skew error: %v", e.Err)
+}
+
+// Unwrap returns the wrapped error.
+func (e *retryableClockSkewError) Unwrap() error {
+	return e.Err
+}
+
+// RetryableError allows the retryer to retry this request
+func (e *retryableClockSkewError) RetryableError() bool {
+	return true
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/standard.go

@@ -0,0 +1,269 @@
+package retry
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws/ratelimit"
+)
+
+// BackoffDelayer provides the interface for determining the delay to before
+// another request attempt, that previously failed.
+type BackoffDelayer interface {
+	BackoffDelay(attempt int, err error) (time.Duration, error)
+}
+
+// BackoffDelayerFunc provides a wrapper around a function to determine the
+// backoff delay of an attempt retry.
+type BackoffDelayerFunc func(int, error) (time.Duration, error)
+
+// BackoffDelay returns the delay before attempt to retry a request.
+func (fn BackoffDelayerFunc) BackoffDelay(attempt int, err error) (time.Duration, error) {
+	return fn(attempt, err)
+}
+
+const (
+	// DefaultMaxAttempts is the maximum of attempts for an API request
+	DefaultMaxAttempts int = 3
+
+	// DefaultMaxBackoff is the maximum back off delay between attempts
+	DefaultMaxBackoff time.Duration = 20 * time.Second
+)
+
+// Default retry token quota values.
+const (
+	DefaultRetryRateTokens  uint = 500
+	DefaultRetryCost        uint = 5
+	DefaultRetryTimeoutCost uint = 10
+	DefaultNoRetryIncrement uint = 1
+)
+
+// DefaultRetryableHTTPStatusCodes is the default set of HTTP status codes the SDK
+// should consider as retryable errors.
+var DefaultRetryableHTTPStatusCodes = map[int]struct{}{
+	500: {},
+	502: {},
+	503: {},
+	504: {},
+}
+
+// DefaultRetryableErrorCodes provides the set of API error codes that should
+// be retried.
+var DefaultRetryableErrorCodes = map[string]struct{}{
+	"RequestTimeout":          {},
+	"RequestTimeoutException": {},
+}
+
+// DefaultThrottleErrorCodes provides the set of API error codes that are
+// considered throttle errors.
+var DefaultThrottleErrorCodes = map[string]struct{}{
+	"Throttling":                             {},
+	"ThrottlingException":                    {},
+	"ThrottledException":                     {},
+	"RequestThrottledException":              {},
+	"TooManyRequestsException":               {},
+	"ProvisionedThroughputExceededException": {},
+	"TransactionInProgressException":         {},
+	"RequestLimitExceeded":                   {},
+	"BandwidthLimitExceeded":                 {},
+	"LimitExceededException":                 {},
+	"RequestThrottled":                       {},
+	"SlowDown":                               {},
+	"PriorRequestNotComplete":                {},
+	"EC2ThrottledException":                  {},
+}
+
+// DefaultRetryables provides the set of retryable checks that are used by
+// default.
+var DefaultRetryables = []IsErrorRetryable{
+	NoRetryCanceledError{},
+	RetryableError{},
+	RetryableConnectionError{},
+	RetryableHTTPStatusCode{
+		Codes: DefaultRetryableHTTPStatusCodes,
+	},
+	RetryableErrorCode{
+		Codes: DefaultRetryableErrorCodes,
+	},
+	RetryableErrorCode{
+		Codes: DefaultThrottleErrorCodes,
+	},
+}
+
+// DefaultTimeouts provides the set of timeout checks that are used by default.
+var DefaultTimeouts = []IsErrorTimeout{
+	TimeouterError{},
+}
+
+// StandardOptions provides the functional options for configuring the standard
+// retryable, and delay behavior.
+type StandardOptions struct {
+	// Maximum number of attempts that should be made.
+	MaxAttempts int
+
+	// MaxBackoff duration between retried attempts.
+	MaxBackoff time.Duration
+
+	// Provides the backoff strategy the retryer will use to determine the
+	// delay between retry attempts.
+	Backoff BackoffDelayer
+
+	// Set of strategies to determine if the attempt should be retried based on
+	// the error response received.
+	//
+	// It is safe to append to this list in NewStandard's functional options.
+	Retryables []IsErrorRetryable
+
+	// Set of strategies to determine if the attempt failed due to a timeout
+	// error.
+	//
+	// It is safe to append to this list in NewStandard's functional options.
+	Timeouts []IsErrorTimeout
+
+	// Provides the rate limiting strategy for rate limiting attempt retries
+	// across all attempts the retryer is being used with.
+	//
+	// A RateLimiter operates as a token bucket with a set capacity, where
+	// attempt failures events consume tokens. A retry attempt that attempts to
+	// consume more tokens than what's available results in operation failure.
+	// The default implementation is parameterized as follows:
+	//   - a capacity of 500 (DefaultRetryRateTokens)
+	//   - a retry caused by a timeout costs 10 tokens (DefaultRetryCost)
+	//   - a retry caused by other errors costs 5 tokens (DefaultRetryTimeoutCost)
+	//   - an operation that succeeds on the 1st attempt adds 1 token (DefaultNoRetryIncrement)
+	//
+	// You can disable rate limiting by setting this field to ratelimit.None.
+	RateLimiter RateLimiter
+
+	// The cost to deduct from the RateLimiter's token bucket per retry.
+	RetryCost uint
+
+	// The cost to deduct from the RateLimiter's token bucket per retry caused
+	// by timeout error.
+	RetryTimeoutCost uint
+
+	// The cost to payback to the RateLimiter's token bucket for successful
+	// attempts.
+	NoRetryIncrement uint
+}
+
+// RateLimiter provides the interface for limiting the rate of attempt retries
+// allowed by the retryer.
+type RateLimiter interface {
+	GetToken(ctx context.Context, cost uint) (releaseToken func() error, err error)
+	AddTokens(uint) error
+}
+
+// Standard is the standard retry pattern for the SDK. It uses a set of
+// retryable checks to determine of the failed attempt should be retried, and
+// what retry delay should be used.
+type Standard struct {
+	options StandardOptions
+
+	timeout   IsErrorTimeout
+	retryable IsErrorRetryable
+	backoff   BackoffDelayer
+}
+
+// NewStandard initializes a standard retry behavior with defaults that can be
+// overridden via functional options.
+func NewStandard(fnOpts ...func(*StandardOptions)) *Standard {
+	o := StandardOptions{
+		MaxAttempts: DefaultMaxAttempts,
+		MaxBackoff:  DefaultMaxBackoff,
+		Retryables:  append([]IsErrorRetryable{}, DefaultRetryables...),
+		Timeouts:    append([]IsErrorTimeout{}, DefaultTimeouts...),
+
+		RateLimiter:      ratelimit.NewTokenRateLimit(DefaultRetryRateTokens),
+		RetryCost:        DefaultRetryCost,
+		RetryTimeoutCost: DefaultRetryTimeoutCost,
+		NoRetryIncrement: DefaultNoRetryIncrement,
+	}
+	for _, fn := range fnOpts {
+		fn(&o)
+	}
+	if o.MaxAttempts <= 0 {
+		o.MaxAttempts = DefaultMaxAttempts
+	}
+
+	backoff := o.Backoff
+	if backoff == nil {
+		backoff = NewExponentialJitterBackoff(o.MaxBackoff)
+	}
+
+	return &Standard{
+		options:   o,
+		backoff:   backoff,
+		retryable: IsErrorRetryables(o.Retryables),
+		timeout:   IsErrorTimeouts(o.Timeouts),
+	}
+}
+
+// MaxAttempts returns the maximum number of attempts that can be made for a
+// request before failing.
+func (s *Standard) MaxAttempts() int {
+	return s.options.MaxAttempts
+}
+
+// IsErrorRetryable returns if the error is can be retried or not. Should not
+// consider the number of attempts made.
+func (s *Standard) IsErrorRetryable(err error) bool {
+	return s.retryable.IsErrorRetryable(err).Bool()
+}
+
+// RetryDelay returns the delay to use before another request attempt is made.
+func (s *Standard) RetryDelay(attempt int, err error) (time.Duration, error) {
+	return s.backoff.BackoffDelay(attempt, err)
+}
+
+// GetAttemptToken returns the token to be released after then attempt completes.
+// The release token will add NoRetryIncrement to the RateLimiter token pool if
+// the attempt was successful. If the attempt failed, nothing will be done.
+func (s *Standard) GetAttemptToken(context.Context) (func(error) error, error) {
+	return s.GetInitialToken(), nil
+}
+
+// GetInitialToken returns a token for adding the NoRetryIncrement to the
+// RateLimiter token if the attempt completed successfully without error.
+//
+// InitialToken applies to result of the each attempt, including the first.
+// Whereas the RetryToken applies to the result of subsequent attempts.
+//
+// Deprecated: use GetAttemptToken instead.
+func (s *Standard) GetInitialToken() func(error) error {
+	return releaseToken(s.noRetryIncrement).release
+}
+
+func (s *Standard) noRetryIncrement() error {
+	return s.options.RateLimiter.AddTokens(s.options.NoRetryIncrement)
+}
+
+// GetRetryToken attempts to deduct the retry cost from the retry token pool.
+// Returning the token release function, or error.
+func (s *Standard) GetRetryToken(ctx context.Context, opErr error) (func(error) error, error) {
+	cost := s.options.RetryCost
+
+	if s.timeout.IsErrorTimeout(opErr).Bool() {
+		cost = s.options.RetryTimeoutCost
+	}
+
+	fn, err := s.options.RateLimiter.GetToken(ctx, cost)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get rate limit token, %w", err)
+	}
+
+	return releaseToken(fn).release, nil
+}
+
+func nopRelease(error) error { return nil }
+
+type releaseToken func() error
+
+func (f releaseToken) release(err error) error {
+	if err != nil {
+		return nil
+	}
+
+	return f()
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/throttle_error.go

@@ -0,0 +1,60 @@
+package retry
+
+import (
+	"errors"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+)
+
+// IsErrorThrottle provides the interface of an implementation to determine if
+// a error response from an operation is a throttling error.
+type IsErrorThrottle interface {
+	IsErrorThrottle(error) aws.Ternary
+}
+
+// IsErrorThrottles is a collection of checks to determine of the error a
+// throttle error. Iterates through the checks and returns the state of
+// throttle if any check returns something other than unknown.
+type IsErrorThrottles []IsErrorThrottle
+
+// IsErrorThrottle returns if the error is a throttle error if any of the
+// checks in the list return a value other than unknown.
+func (r IsErrorThrottles) IsErrorThrottle(err error) aws.Ternary {
+	for _, re := range r {
+		if v := re.IsErrorThrottle(err); v != aws.UnknownTernary {
+			return v
+		}
+	}
+	return aws.UnknownTernary
+}
+
+// IsErrorThrottleFunc wraps a function with the IsErrorThrottle interface.
+type IsErrorThrottleFunc func(error) aws.Ternary
+
+// IsErrorThrottle returns if the error is a throttle error.
+func (fn IsErrorThrottleFunc) IsErrorThrottle(err error) aws.Ternary {
+	return fn(err)
+}
+
+// ThrottleErrorCode determines if an attempt should be retried based on the
+// API error code.
+type ThrottleErrorCode struct {
+	Codes map[string]struct{}
+}
+
+// IsErrorThrottle return if the error is a throttle error based on the error
+// codes. Returns unknown if the error doesn't have a code or it is unknown.
+func (r ThrottleErrorCode) IsErrorThrottle(err error) aws.Ternary {
+	var v interface{ ErrorCode() string }
+
+	if !errors.As(err, &v) {
+		return aws.UnknownTernary
+	}
+
+	_, ok := r.Codes[v.ErrorCode()]
+	if !ok {
+		return aws.UnknownTernary
+	}
+
+	return aws.TrueTernary
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retry/timeout_error.go

@@ -0,0 +1,52 @@
+package retry
+
+import (
+	"errors"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+)
+
+// IsErrorTimeout provides the interface of an implementation to determine if
+// a error matches.
+type IsErrorTimeout interface {
+	IsErrorTimeout(err error) aws.Ternary
+}
+
+// IsErrorTimeouts is a collection of checks to determine of the error is
+// retryable. Iterates through the checks and returns the state of retryable
+// if any check returns something other than unknown.
+type IsErrorTimeouts []IsErrorTimeout
+
+// IsErrorTimeout returns if the error is retryable if any of the checks in
+// the list return a value other than unknown.
+func (ts IsErrorTimeouts) IsErrorTimeout(err error) aws.Ternary {
+	for _, t := range ts {
+		if v := t.IsErrorTimeout(err); v != aws.UnknownTernary {
+			return v
+		}
+	}
+	return aws.UnknownTernary
+}
+
+// IsErrorTimeoutFunc wraps a function with the IsErrorTimeout interface.
+type IsErrorTimeoutFunc func(error) aws.Ternary
+
+// IsErrorTimeout returns if the error is retryable.
+func (fn IsErrorTimeoutFunc) IsErrorTimeout(err error) aws.Ternary {
+	return fn(err)
+}
+
+// TimeouterError provides the IsErrorTimeout implementation for determining if
+// an error is a timeout based on type with the Timeout method.
+type TimeouterError struct{}
+
+// IsErrorTimeout returns if the error is a timeout error.
+func (t TimeouterError) IsErrorTimeout(err error) aws.Ternary {
+	var v interface{ Timeout() bool }
+
+	if !errors.As(err, &v) {
+		return aws.UnknownTernary
+	}
+
+	return aws.BoolTernary(v.Timeout())
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/retryer.go

@@ -0,0 +1,127 @@
+package aws
+
+import (
+	"context"
+	"fmt"
+	"time"
+)
+
+// RetryMode provides the mode the API client will use to create a retryer
+// based on.
+type RetryMode string
+
+const (
+	// RetryModeStandard model provides rate limited retry attempts with
+	// exponential backoff delay.
+	RetryModeStandard RetryMode = "standard"
+
+	// RetryModeAdaptive model provides attempt send rate limiting on throttle
+	// responses in addition to standard mode's retry rate limiting.
+	//
+	// Adaptive retry mode is experimental and is subject to change in the
+	// future.
+	RetryModeAdaptive RetryMode = "adaptive"
+)
+
+// ParseRetryMode attempts to parse a RetryMode from the given string.
+// Returning error if the value is not a known RetryMode.
+func ParseRetryMode(v string) (mode RetryMode, err error) {
+	switch v {
+	case "standard":
+		return RetryModeStandard, nil
+	case "adaptive":
+		return RetryModeAdaptive, nil
+	default:
+		return mode, fmt.Errorf("unknown RetryMode, %v", v)
+	}
+}
+
+func (m RetryMode) String() string { return string(m) }
+
+// Retryer is an interface to determine if a given error from a
+// attempt should be retried, and if so what backoff delay to apply. The
+// default implementation used by most services is the retry package's Standard
+// type. Which contains basic retry logic using exponential backoff.
+type Retryer interface {
+	// IsErrorRetryable returns if the failed attempt is retryable. This check
+	// should determine if the error can be retried, or if the error is
+	// terminal.
+	IsErrorRetryable(error) bool
+
+	// MaxAttempts returns the maximum number of attempts that can be made for
+	// an attempt before failing. A value of 0 implies that the attempt should
+	// be retried until it succeeds if the errors are retryable.
+	MaxAttempts() int
+
+	// RetryDelay returns the delay that should be used before retrying the
+	// attempt. Will return error if the delay could not be determined.
+	RetryDelay(attempt int, opErr error) (time.Duration, error)
+
+	// GetRetryToken attempts to deduct the retry cost from the retry token pool.
+	// Returning the token release function, or error.
+	GetRetryToken(ctx context.Context, opErr error) (releaseToken func(error) error, err error)
+
+	// GetInitialToken returns the initial attempt token that can increment the
+	// retry token pool if the attempt is successful.
+	GetInitialToken() (releaseToken func(error) error)
+}
+
+// RetryerV2 is an interface to determine if a given error from an attempt
+// should be retried, and if so what backoff delay to apply. The default
+// implementation used by most services is the retry package's Standard type.
+// Which contains basic retry logic using exponential backoff.
+//
+// RetryerV2 replaces the Retryer interface, deprecating the GetInitialToken
+// method in favor of GetAttemptToken which takes a context, and can return an error.
+//
+// The SDK's retry package's Attempt middleware, and utilities will always
+// wrap a Retryer as a RetryerV2. Delegating to GetInitialToken, only if
+// GetAttemptToken is not implemented.
+type RetryerV2 interface {
+	Retryer
+
+	// GetInitialToken returns the initial attempt token that can increment the
+	// retry token pool if the attempt is successful.
+	//
+	// Deprecated: This method does not provide a way to block using Context,
+	// nor can it return an error. Use RetryerV2, and GetAttemptToken instead.
+	GetInitialToken() (releaseToken func(error) error)
+
+	// GetAttemptToken returns the send token that can be used to rate limit
+	// attempt calls. Will be used by the SDK's retry package's Attempt
+	// middleware to get a send token prior to calling the temp and releasing
+	// the send token after the attempt has been made.
+	GetAttemptToken(context.Context) (func(error) error, error)
+}
+
+// NopRetryer provides a RequestRetryDecider implementation that will flag
+// all attempt errors as not retryable, with a max attempts of 1.
+type NopRetryer struct{}
+
+// IsErrorRetryable returns false for all error values.
+func (NopRetryer) IsErrorRetryable(error) bool { return false }
+
+// MaxAttempts always returns 1 for the original attempt.
+func (NopRetryer) MaxAttempts() int { return 1 }
+
+// RetryDelay is not valid for the NopRetryer. Will always return error.
+func (NopRetryer) RetryDelay(int, error) (time.Duration, error) {
+	return 0, fmt.Errorf("not retrying any attempt errors")
+}
+
+// GetRetryToken returns a stub function that does nothing.
+func (NopRetryer) GetRetryToken(context.Context, error) (func(error) error, error) {
+	return nopReleaseToken, nil
+}
+
+// GetInitialToken returns a stub function that does nothing.
+func (NopRetryer) GetInitialToken() func(error) error {
+	return nopReleaseToken
+}
+
+// GetAttemptToken returns a stub function that does nothing.
+func (NopRetryer) GetAttemptToken(context.Context) (func(error) error, error) {
+	return nopReleaseToken, nil
+}
+
+func nopReleaseToken(error) error { return nil }

go/vendor/github.com/aws/aws-sdk-go-v2/aws/runtime.go

@@ -0,0 +1,14 @@
+package aws
+
+// ExecutionEnvironmentID is the AWS execution environment runtime identifier.
+type ExecutionEnvironmentID string
+
+// RuntimeEnvironment is a collection of values that are determined at runtime
+// based on the environment that the SDK is executing in. Some of these values
+// may or may not be present based on the executing environment and certain SDK
+// configuration properties that drive whether these values are populated..
+type RuntimeEnvironment struct {
+	EnvironmentIdentifier     ExecutionEnvironmentID
+	Region                    string
+	EC2InstanceMetadataRegion string
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/cache.go

@@ -0,0 +1,115 @@
+package v4
+
+import (
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+)
+
+func lookupKey(service, region string) string {
+	var s strings.Builder
+	s.Grow(len(region) + len(service) + 3)
+	s.WriteString(region)
+	s.WriteRune('/')
+	s.WriteString(service)
+	return s.String()
+}
+
+type derivedKey struct {
+	AccessKey  string
+	Date       time.Time
+	Credential []byte
+}
+
+type derivedKeyCache struct {
+	values map[string]derivedKey
+	mutex  sync.RWMutex
+}
+
+func newDerivedKeyCache() derivedKeyCache {
+	return derivedKeyCache{
+		values: make(map[string]derivedKey),
+	}
+}
+
+func (s *derivedKeyCache) Get(credentials aws.Credentials, service, region string, signingTime SigningTime) []byte {
+	key := lookupKey(service, region)
+	s.mutex.RLock()
+	if cred, ok := s.get(key, credentials, signingTime.Time); ok {
+		s.mutex.RUnlock()
+		return cred
+	}
+	s.mutex.RUnlock()
+
+	s.mutex.Lock()
+	if cred, ok := s.get(key, credentials, signingTime.Time); ok {
+		s.mutex.Unlock()
+		return cred
+	}
+	cred := deriveKey(credentials.SecretAccessKey, service, region, signingTime)
+	entry := derivedKey{
+		AccessKey:  credentials.AccessKeyID,
+		Date:       signingTime.Time,
+		Credential: cred,
+	}
+	s.values[key] = entry
+	s.mutex.Unlock()
+
+	return cred
+}
+
+func (s *derivedKeyCache) get(key string, credentials aws.Credentials, signingTime time.Time) ([]byte, bool) {
+	cacheEntry, ok := s.retrieveFromCache(key)
+	if ok && cacheEntry.AccessKey == credentials.AccessKeyID && isSameDay(signingTime, cacheEntry.Date) {
+		return cacheEntry.Credential, true
+	}
+	return nil, false
+}
+
+func (s *derivedKeyCache) retrieveFromCache(key string) (derivedKey, bool) {
+	if v, ok := s.values[key]; ok {
+		return v, true
+	}
+	return derivedKey{}, false
+}
+
+// SigningKeyDeriver derives a signing key from a set of credentials
+type SigningKeyDeriver struct {
+	cache derivedKeyCache
+}
+
+// NewSigningKeyDeriver returns a new SigningKeyDeriver
+func NewSigningKeyDeriver() *SigningKeyDeriver {
+	return &SigningKeyDeriver{
+		cache: newDerivedKeyCache(),
+	}
+}
+
+// DeriveKey returns a derived signing key from the given credentials to be used with SigV4 signing.
+func (k *SigningKeyDeriver) DeriveKey(credential aws.Credentials, service, region string, signingTime SigningTime) []byte {
+	return k.cache.Get(credential, service, region, signingTime)
+}
+
+func deriveKey(secret, service, region string, t SigningTime) []byte {
+	hmacDate := HMACSHA256([]byte("AWS4"+secret), []byte(t.ShortTimeFormat()))
+	hmacRegion := HMACSHA256(hmacDate, []byte(region))
+	hmacService := HMACSHA256(hmacRegion, []byte(service))
+	return HMACSHA256(hmacService, []byte("aws4_request"))
+}
+
+func isSameDay(x, y time.Time) bool {
+	xYear, xMonth, xDay := x.Date()
+	yYear, yMonth, yDay := y.Date()
+
+	if xYear != yYear {
+		return false
+	}
+
+	if xMonth != yMonth {
+		return false
+	}
+
+	return xDay == yDay
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/const.go

@@ -0,0 +1,40 @@
+package v4
+
+// Signature Version 4 (SigV4) Constants
+const (
+	// EmptyStringSHA256 is the hex encoded sha256 value of an empty string
+	EmptyStringSHA256 = `e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855`
+
+	// UnsignedPayload indicates that the request payload body is unsigned
+	UnsignedPayload = "UNSIGNED-PAYLOAD"
+
+	// AmzAlgorithmKey indicates the signing algorithm
+	AmzAlgorithmKey = "X-Amz-Algorithm"
+
+	// AmzSecurityTokenKey indicates the security token to be used with temporary credentials
+	AmzSecurityTokenKey = "X-Amz-Security-Token"
+
+	// AmzDateKey is the UTC timestamp for the request in the format YYYYMMDD'T'HHMMSS'Z'
+	AmzDateKey = "X-Amz-Date"
+
+	// AmzCredentialKey is the access key ID and credential scope
+	AmzCredentialKey = "X-Amz-Credential"
+
+	// AmzSignedHeadersKey is the set of headers signed for the request
+	AmzSignedHeadersKey = "X-Amz-SignedHeaders"
+
+	// AmzSignatureKey is the query parameter to store the SigV4 signature
+	AmzSignatureKey = "X-Amz-Signature"
+
+	// TimeFormat is the time format to be used in the X-Amz-Date header or query parameter
+	TimeFormat = "20060102T150405Z"
+
+	// ShortTimeFormat is the shorten time format used in the credential scope
+	ShortTimeFormat = "20060102"
+
+	// ContentSHAKey is the SHA256 of request body
+	ContentSHAKey = "X-Amz-Content-Sha256"
+
+	// StreamingEventsPayload indicates that the request payload body is a signed event stream.
+	StreamingEventsPayload = "STREAMING-AWS4-HMAC-SHA256-EVENTS"
+)

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/header_rules.go

@@ -0,0 +1,82 @@
+package v4
+
+import (
+	sdkstrings "github.com/aws/aws-sdk-go-v2/internal/strings"
+)
+
+// Rules houses a set of Rule needed for validation of a
+// string value
+type Rules []Rule
+
+// Rule interface allows for more flexible rules and just simply
+// checks whether or not a value adheres to that Rule
+type Rule interface {
+	IsValid(value string) bool
+}
+
+// IsValid will iterate through all rules and see if any rules
+// apply to the value and supports nested rules
+func (r Rules) IsValid(value string) bool {
+	for _, rule := range r {
+		if rule.IsValid(value) {
+			return true
+		}
+	}
+	return false
+}
+
+// MapRule generic Rule for maps
+type MapRule map[string]struct{}
+
+// IsValid for the map Rule satisfies whether it exists in the map
+func (m MapRule) IsValid(value string) bool {
+	_, ok := m[value]
+	return ok
+}
+
+// AllowList is a generic Rule for include listing
+type AllowList struct {
+	Rule
+}
+
+// IsValid for AllowList checks if the value is within the AllowList
+func (w AllowList) IsValid(value string) bool {
+	return w.Rule.IsValid(value)
+}
+
+// ExcludeList is a generic Rule for exclude listing
+type ExcludeList struct {
+	Rule
+}
+
+// IsValid for AllowList checks if the value is within the AllowList
+func (b ExcludeList) IsValid(value string) bool {
+	return !b.Rule.IsValid(value)
+}
+
+// Patterns is a list of strings to match against
+type Patterns []string
+
+// IsValid for Patterns checks each pattern and returns if a match has
+// been found
+func (p Patterns) IsValid(value string) bool {
+	for _, pattern := range p {
+		if sdkstrings.HasPrefixFold(value, pattern) {
+			return true
+		}
+	}
+	return false
+}
+
+// InclusiveRules rules allow for rules to depend on one another
+type InclusiveRules []Rule
+
+// IsValid will return true if all rules are true
+func (r InclusiveRules) IsValid(value string) bool {
+	for _, rule := range r {
+		if !rule.IsValid(value) {
+			return false
+		}
+	}
+	return true
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/headers.go

@@ -0,0 +1,70 @@
+package v4
+
+// IgnoredHeaders is a list of headers that are ignored during signing
+var IgnoredHeaders = Rules{
+	ExcludeList{
+		MapRule{
+			"Authorization":     struct{}{},
+			"User-Agent":        struct{}{},
+			"X-Amzn-Trace-Id":   struct{}{},
+			"Expect":            struct{}{},
+			"Transfer-Encoding": struct{}{},
+		},
+	},
+}
+
+// RequiredSignedHeaders is a allow list for Build canonical headers.
+var RequiredSignedHeaders = Rules{
+	AllowList{
+		MapRule{
+			"Cache-Control":                         struct{}{},
+			"Content-Disposition":                   struct{}{},
+			"Content-Encoding":                      struct{}{},
+			"Content-Language":                      struct{}{},
+			"Content-Md5":                           struct{}{},
+			"Content-Type":                          struct{}{},
+			"Expires":                               struct{}{},
+			"If-Match":                              struct{}{},
+			"If-Modified-Since":                     struct{}{},
+			"If-None-Match":                         struct{}{},
+			"If-Unmodified-Since":                   struct{}{},
+			"Range":                                 struct{}{},
+			"X-Amz-Acl":                             struct{}{},
+			"X-Amz-Copy-Source":                     struct{}{},
+			"X-Amz-Copy-Source-If-Match":            struct{}{},
+			"X-Amz-Copy-Source-If-Modified-Since":   struct{}{},
+			"X-Amz-Copy-Source-If-None-Match":       struct{}{},
+			"X-Amz-Copy-Source-If-Unmodified-Since": struct{}{},
+			"X-Amz-Copy-Source-Range":               struct{}{},
+			"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": struct{}{},
+			"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key":       struct{}{},
+			"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5":   struct{}{},
+			"X-Amz-Grant-Full-control":                                    struct{}{},
+			"X-Amz-Grant-Read":                                            struct{}{},
+			"X-Amz-Grant-Read-Acp":                                        struct{}{},
+			"X-Amz-Grant-Write":                                           struct{}{},
+			"X-Amz-Grant-Write-Acp":                                       struct{}{},
+			"X-Amz-Metadata-Directive":                                    struct{}{},
+			"X-Amz-Mfa":                                                   struct{}{},
+			"X-Amz-Server-Side-Encryption":                                struct{}{},
+			"X-Amz-Server-Side-Encryption-Aws-Kms-Key-Id":                 struct{}{},
+			"X-Amz-Server-Side-Encryption-Context":                        struct{}{},
+			"X-Amz-Server-Side-Encryption-Customer-Algorithm":             struct{}{},
+			"X-Amz-Server-Side-Encryption-Customer-Key":                   struct{}{},
+			"X-Amz-Server-Side-Encryption-Customer-Key-Md5":               struct{}{},
+			"X-Amz-Storage-Class":                                         struct{}{},
+			"X-Amz-Website-Redirect-Location":                             struct{}{},
+			"X-Amz-Content-Sha256":                                        struct{}{},
+			"X-Amz-Tagging":                                               struct{}{},
+		},
+	},
+	Patterns{"X-Amz-Object-Lock-"},
+	Patterns{"X-Amz-Meta-"},
+}
+
+// AllowedQueryHoisting is a allowed list for Build query headers. The boolean value
+// represents whether or not it is a pattern.
+var AllowedQueryHoisting = InclusiveRules{
+	ExcludeList{RequiredSignedHeaders},
+	Patterns{"X-Amz-"},
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/hmac.go

@@ -0,0 +1,13 @@
+package v4
+
+import (
+	"crypto/hmac"
+	"crypto/sha256"
+)
+
+// HMACSHA256 computes a HMAC-SHA256 of data given the provided key.
+func HMACSHA256(key []byte, data []byte) []byte {
+	hash := hmac.New(sha256.New, key)
+	hash.Write(data)
+	return hash.Sum(nil)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/host.go

@@ -0,0 +1,75 @@
+package v4
+
+import (
+	"net/http"
+	"strings"
+)
+
+// SanitizeHostForHeader removes default port from host and updates request.Host
+func SanitizeHostForHeader(r *http.Request) {
+	host := getHost(r)
+	port := portOnly(host)
+	if port != "" && isDefaultPort(r.URL.Scheme, port) {
+		r.Host = stripPort(host)
+	}
+}
+
+// Returns host from request
+func getHost(r *http.Request) string {
+	if r.Host != "" {
+		return r.Host
+	}
+
+	return r.URL.Host
+}
+
+// Hostname returns u.Host, without any port number.
+//
+// If Host is an IPv6 literal with a port number, Hostname returns the
+// IPv6 literal without the square brackets. IPv6 literals may include
+// a zone identifier.
+//
+// Copied from the Go 1.8 standard library (net/url)
+func stripPort(hostport string) string {
+	colon := strings.IndexByte(hostport, ':')
+	if colon == -1 {
+		return hostport
+	}
+	if i := strings.IndexByte(hostport, ']'); i != -1 {
+		return strings.TrimPrefix(hostport[:i], "[")
+	}
+	return hostport[:colon]
+}
+
+// Port returns the port part of u.Host, without the leading colon.
+// If u.Host doesn't contain a port, Port returns an empty string.
+//
+// Copied from the Go 1.8 standard library (net/url)
+func portOnly(hostport string) string {
+	colon := strings.IndexByte(hostport, ':')
+	if colon == -1 {
+		return ""
+	}
+	if i := strings.Index(hostport, "]:"); i != -1 {
+		return hostport[i+len("]:"):]
+	}
+	if strings.Contains(hostport, "]") {
+		return ""
+	}
+	return hostport[colon+len(":"):]
+}
+
+// Returns true if the specified URI is using the standard port
+// (i.e. port 80 for HTTP URIs or 443 for HTTPS URIs)
+func isDefaultPort(scheme, port string) bool {
+	if port == "" {
+		return true
+	}
+
+	lowerCaseScheme := strings.ToLower(scheme)
+	if (lowerCaseScheme == "http" && port == "80") || (lowerCaseScheme == "https" && port == "443") {
+		return true
+	}
+
+	return false
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/scope.go

@@ -0,0 +1,13 @@
+package v4
+
+import "strings"
+
+// BuildCredentialScope builds the Signature Version 4 (SigV4) signing scope
+func BuildCredentialScope(signingTime SigningTime, region, service string) string {
+	return strings.Join([]string{
+		signingTime.ShortTimeFormat(),
+		region,
+		service,
+		"aws4_request",
+	}, "/")
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/time.go

@@ -0,0 +1,36 @@
+package v4
+
+import "time"
+
+// SigningTime provides a wrapper around a time.Time which provides cached values for SigV4 signing.
+type SigningTime struct {
+	time.Time
+	timeFormat      string
+	shortTimeFormat string
+}
+
+// NewSigningTime creates a new SigningTime given a time.Time
+func NewSigningTime(t time.Time) SigningTime {
+	return SigningTime{
+		Time: t,
+	}
+}
+
+// TimeFormat provides a time formatted in the X-Amz-Date format.
+func (m *SigningTime) TimeFormat() string {
+	return m.format(&m.timeFormat, TimeFormat)
+}
+
+// ShortTimeFormat provides a time formatted of 20060102.
+func (m *SigningTime) ShortTimeFormat() string {
+	return m.format(&m.shortTimeFormat, ShortTimeFormat)
+}
+
+func (m *SigningTime) format(target *string, format string) string {
+	if len(*target) > 0 {
+		return *target
+	}
+	v := m.Time.Format(format)
+	*target = v
+	return v
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/util.go

@@ -0,0 +1,80 @@
+package v4
+
+import (
+	"net/url"
+	"strings"
+)
+
+const doubleSpace = "  "
+
+// StripExcessSpaces will rewrite the passed in slice's string values to not
+// contain multiple side-by-side spaces.
+func StripExcessSpaces(str string) string {
+	var j, k, l, m, spaces int
+	// Trim trailing spaces
+	for j = len(str) - 1; j >= 0 && str[j] == ' '; j-- {
+	}
+
+	// Trim leading spaces
+	for k = 0; k < j && str[k] == ' '; k++ {
+	}
+	str = str[k : j+1]
+
+	// Strip multiple spaces.
+	j = strings.Index(str, doubleSpace)
+	if j < 0 {
+		return str
+	}
+
+	buf := []byte(str)
+	for k, m, l = j, j, len(buf); k < l; k++ {
+		if buf[k] == ' ' {
+			if spaces == 0 {
+				// First space.
+				buf[m] = buf[k]
+				m++
+			}
+			spaces++
+		} else {
+			// End of multiple spaces.
+			spaces = 0
+			buf[m] = buf[k]
+			m++
+		}
+	}
+
+	return string(buf[:m])
+}
+
+// GetURIPath returns the escaped URI component from the provided URL.
+func GetURIPath(u *url.URL) string {
+	var uriPath string
+
+	if len(u.Opaque) > 0 {
+		const schemeSep, pathSep, queryStart = "//", "/", "?"
+
+		opaque := u.Opaque
+		// Cut off the query string if present.
+		if idx := strings.Index(opaque, queryStart); idx >= 0 {
+			opaque = opaque[:idx]
+		}
+
+		// Cutout the scheme separator if present.
+		if strings.Index(opaque, schemeSep) == 0 {
+			opaque = opaque[len(schemeSep):]
+		}
+
+		// capture URI path starting with first path separator.
+		if idx := strings.Index(opaque, pathSep); idx >= 0 {
+			uriPath = opaque[idx:]
+		}
+	} else {
+		uriPath = u.EscapedPath()
+	}
+
+	if len(uriPath) == 0 {
+		uriPath = "/"
+	}
+
+	return uriPath
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/v4/middleware.go

@@ -0,0 +1,420 @@
+package v4
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
+	v4Internal "github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4"
+	internalauth "github.com/aws/aws-sdk-go-v2/internal/auth"
+	"github.com/aws/aws-sdk-go-v2/internal/sdk"
+	"github.com/aws/smithy-go/middleware"
+	"github.com/aws/smithy-go/tracing"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+)
+
+const computePayloadHashMiddlewareID = "ComputePayloadHash"
+
+// HashComputationError indicates an error occurred while computing the signing hash
+type HashComputationError struct {
+	Err error
+}
+
+// Error is the error message
+func (e *HashComputationError) Error() string {
+	return fmt.Sprintf("failed to compute payload hash: %v", e.Err)
+}
+
+// Unwrap returns the underlying error if one is set
+func (e *HashComputationError) Unwrap() error {
+	return e.Err
+}
+
+// SigningError indicates an error condition occurred while performing SigV4 signing
+type SigningError struct {
+	Err error
+}
+
+func (e *SigningError) Error() string {
+	return fmt.Sprintf("failed to sign request: %v", e.Err)
+}
+
+// Unwrap returns the underlying error cause
+func (e *SigningError) Unwrap() error {
+	return e.Err
+}
+
+// UseDynamicPayloadSigningMiddleware swaps the compute payload sha256 middleware with a resolver middleware that
+// switches between unsigned and signed payload based on TLS state for request.
+// This middleware should not be used for AWS APIs that do not support unsigned payload signing auth.
+// By default, SDK uses this middleware for known AWS APIs that support such TLS based auth selection .
+//
+// Usage example -
+// S3 PutObject API allows unsigned payload signing auth usage when TLS is enabled, and uses this middleware to
+// dynamically switch between unsigned and signed payload based on TLS state for request.
+func UseDynamicPayloadSigningMiddleware(stack *middleware.Stack) error {
+	_, err := stack.Finalize.Swap(computePayloadHashMiddlewareID, &dynamicPayloadSigningMiddleware{})
+	return err
+}
+
+// dynamicPayloadSigningMiddleware dynamically resolves the middleware that computes and set payload sha256 middleware.
+type dynamicPayloadSigningMiddleware struct {
+}
+
+// ID returns the resolver identifier
+func (m *dynamicPayloadSigningMiddleware) ID() string {
+	return computePayloadHashMiddlewareID
+}
+
+// HandleFinalize delegates SHA256 computation according to whether the request
+// is TLS-enabled.
+func (m *dynamicPayloadSigningMiddleware) HandleFinalize(
+	ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler,
+) (
+	out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
+) {
+	req, ok := in.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, fmt.Errorf("unknown transport type %T", in.Request)
+	}
+
+	if req.IsHTTPS() {
+		return (&UnsignedPayload{}).HandleFinalize(ctx, in, next)
+	}
+	return (&ComputePayloadSHA256{}).HandleFinalize(ctx, in, next)
+}
+
+// UnsignedPayload sets the SigV4 request payload hash to unsigned.
+//
+// Will not set the Unsigned Payload magic SHA value, if a SHA has already been
+// stored in the context. (e.g. application pre-computed SHA256 before making
+// API call).
+//
+// This middleware does not check the X-Amz-Content-Sha256 header, if that
+// header is serialized a middleware must translate it into the context.
+type UnsignedPayload struct{}
+
+// AddUnsignedPayloadMiddleware adds unsignedPayload to the operation
+// middleware stack
+func AddUnsignedPayloadMiddleware(stack *middleware.Stack) error {
+	return stack.Finalize.Insert(&UnsignedPayload{}, "ResolveEndpointV2", middleware.After)
+}
+
+// ID returns the unsignedPayload identifier
+func (m *UnsignedPayload) ID() string {
+	return computePayloadHashMiddlewareID
+}
+
+// HandleFinalize sets the payload hash magic value to the unsigned sentinel.
+func (m *UnsignedPayload) HandleFinalize(
+	ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler,
+) (
+	out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
+) {
+	if GetPayloadHash(ctx) == "" {
+		ctx = SetPayloadHash(ctx, v4Internal.UnsignedPayload)
+	}
+	return next.HandleFinalize(ctx, in)
+}
+
+// ComputePayloadSHA256 computes SHA256 payload hash to sign.
+//
+// Will not set the Unsigned Payload magic SHA value, if a SHA has already been
+// stored in the context. (e.g. application pre-computed SHA256 before making
+// API call).
+//
+// This middleware does not check the X-Amz-Content-Sha256 header, if that
+// header is serialized a middleware must translate it into the context.
+type ComputePayloadSHA256 struct{}
+
+// AddComputePayloadSHA256Middleware adds computePayloadSHA256 to the
+// operation middleware stack
+func AddComputePayloadSHA256Middleware(stack *middleware.Stack) error {
+	return stack.Finalize.Insert(&ComputePayloadSHA256{}, "ResolveEndpointV2", middleware.After)
+}
+
+// RemoveComputePayloadSHA256Middleware removes computePayloadSHA256 from the
+// operation middleware stack
+func RemoveComputePayloadSHA256Middleware(stack *middleware.Stack) error {
+	_, err := stack.Finalize.Remove(computePayloadHashMiddlewareID)
+	return err
+}
+
+// ID is the middleware name
+func (m *ComputePayloadSHA256) ID() string {
+	return computePayloadHashMiddlewareID
+}
+
+// HandleFinalize computes the payload hash for the request, storing it to the
+// context. This is a no-op if a caller has previously set that value.
+func (m *ComputePayloadSHA256) HandleFinalize(
+	ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler,
+) (
+	out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
+) {
+	if GetPayloadHash(ctx) != "" {
+		return next.HandleFinalize(ctx, in)
+	}
+
+	_, span := tracing.StartSpan(ctx, "ComputePayloadSHA256")
+	defer span.End()
+
+	req, ok := in.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, &HashComputationError{
+			Err: fmt.Errorf("unexpected request middleware type %T", in.Request),
+		}
+	}
+
+	hash := sha256.New()
+	if stream := req.GetStream(); stream != nil {
+		_, err = io.Copy(hash, stream)
+		if err != nil {
+			return out, metadata, &HashComputationError{
+				Err: fmt.Errorf("failed to compute payload hash, %w", err),
+			}
+		}
+
+		if err := req.RewindStream(); err != nil {
+			return out, metadata, &HashComputationError{
+				Err: fmt.Errorf("failed to seek body to start, %w", err),
+			}
+		}
+	}
+
+	ctx = SetPayloadHash(ctx, hex.EncodeToString(hash.Sum(nil)))
+
+	span.End()
+	return next.HandleFinalize(ctx, in)
+}
+
+// SwapComputePayloadSHA256ForUnsignedPayloadMiddleware replaces the
+// ComputePayloadSHA256 middleware with the UnsignedPayload middleware.
+//
+// Use this to disable computing the Payload SHA256 checksum and instead use
+// UNSIGNED-PAYLOAD for the SHA256 value.
+func SwapComputePayloadSHA256ForUnsignedPayloadMiddleware(stack *middleware.Stack) error {
+	_, err := stack.Finalize.Swap(computePayloadHashMiddlewareID, &UnsignedPayload{})
+	return err
+}
+
+// ContentSHA256Header sets the X-Amz-Content-Sha256 header value to
+// the Payload hash stored in the context.
+type ContentSHA256Header struct{}
+
+// AddContentSHA256HeaderMiddleware adds ContentSHA256Header to the
+// operation middleware stack
+func AddContentSHA256HeaderMiddleware(stack *middleware.Stack) error {
+	return stack.Finalize.Insert(&ContentSHA256Header{}, computePayloadHashMiddlewareID, middleware.After)
+}
+
+// RemoveContentSHA256HeaderMiddleware removes contentSHA256Header middleware
+// from the operation middleware stack
+func RemoveContentSHA256HeaderMiddleware(stack *middleware.Stack) error {
+	_, err := stack.Finalize.Remove((*ContentSHA256Header)(nil).ID())
+	return err
+}
+
+// ID returns the ContentSHA256HeaderMiddleware identifier
+func (m *ContentSHA256Header) ID() string {
+	return "SigV4ContentSHA256Header"
+}
+
+// HandleFinalize sets the X-Amz-Content-Sha256 header value to the Payload hash
+// stored in the context.
+func (m *ContentSHA256Header) HandleFinalize(
+	ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler,
+) (
+	out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
+) {
+	req, ok := in.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, &HashComputationError{Err: fmt.Errorf("unexpected request middleware type %T", in.Request)}
+	}
+
+	req.Header.Set(v4Internal.ContentSHAKey, GetPayloadHash(ctx))
+	return next.HandleFinalize(ctx, in)
+}
+
+// SignHTTPRequestMiddlewareOptions is the configuration options for
+// [SignHTTPRequestMiddleware].
+//
+// Deprecated: [SignHTTPRequestMiddleware] is deprecated.
+type SignHTTPRequestMiddlewareOptions struct {
+	CredentialsProvider aws.CredentialsProvider
+	Signer              HTTPSigner
+	LogSigning          bool
+}
+
+// SignHTTPRequestMiddleware is a `FinalizeMiddleware` implementation for SigV4
+// HTTP Signing.
+//
+// Deprecated: AWS service clients no longer use this middleware. Signing as an
+// SDK operation is now performed through an internal per-service middleware
+// which opaquely selects and uses the signer from the resolved auth scheme.
+type SignHTTPRequestMiddleware struct {
+	credentialsProvider aws.CredentialsProvider
+	signer              HTTPSigner
+	logSigning          bool
+}
+
+// NewSignHTTPRequestMiddleware constructs a [SignHTTPRequestMiddleware] using
+// the given [Signer] for signing requests.
+//
+// Deprecated: SignHTTPRequestMiddleware is deprecated.
+func NewSignHTTPRequestMiddleware(options SignHTTPRequestMiddlewareOptions) *SignHTTPRequestMiddleware {
+	return &SignHTTPRequestMiddleware{
+		credentialsProvider: options.CredentialsProvider,
+		signer:              options.Signer,
+		logSigning:          options.LogSigning,
+	}
+}
+
+// ID is the SignHTTPRequestMiddleware identifier.
+//
+// Deprecated: SignHTTPRequestMiddleware is deprecated.
+func (s *SignHTTPRequestMiddleware) ID() string {
+	return "Signing"
+}
+
+// HandleFinalize will take the provided input and sign the request using the
+// SigV4 authentication scheme.
+//
+// Deprecated: SignHTTPRequestMiddleware is deprecated.
+func (s *SignHTTPRequestMiddleware) HandleFinalize(ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler) (
+	out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
+) {
+	if !haveCredentialProvider(s.credentialsProvider) {
+		return next.HandleFinalize(ctx, in)
+	}
+
+	req, ok := in.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, &SigningError{Err: fmt.Errorf("unexpected request middleware type %T", in.Request)}
+	}
+
+	signingName, signingRegion := awsmiddleware.GetSigningName(ctx), awsmiddleware.GetSigningRegion(ctx)
+	payloadHash := GetPayloadHash(ctx)
+	if len(payloadHash) == 0 {
+		return out, metadata, &SigningError{Err: fmt.Errorf("computed payload hash missing from context")}
+	}
+
+	credentials, err := s.credentialsProvider.Retrieve(ctx)
+	if err != nil {
+		return out, metadata, &SigningError{Err: fmt.Errorf("failed to retrieve credentials: %w", err)}
+	}
+
+	signerOptions := []func(o *SignerOptions){
+		func(o *SignerOptions) {
+			o.Logger = middleware.GetLogger(ctx)
+			o.LogSigning = s.logSigning
+		},
+	}
+
+	// existing DisableURIPathEscaping is equivalent in purpose
+	// to authentication scheme property DisableDoubleEncoding
+	disableDoubleEncoding, overridden := internalauth.GetDisableDoubleEncoding(ctx)
+	if overridden {
+		signerOptions = append(signerOptions, func(o *SignerOptions) {
+			o.DisableURIPathEscaping = disableDoubleEncoding
+		})
+	}
+
+	err = s.signer.SignHTTP(ctx, credentials, req.Request, payloadHash, signingName, signingRegion, sdk.NowTime(), signerOptions...)
+	if err != nil {
+		return out, metadata, &SigningError{Err: fmt.Errorf("failed to sign http request, %w", err)}
+	}
+
+	ctx = awsmiddleware.SetSigningCredentials(ctx, credentials)
+
+	return next.HandleFinalize(ctx, in)
+}
+
+// StreamingEventsPayload signs input event stream messages.
+type StreamingEventsPayload struct{}
+
+// AddStreamingEventsPayload adds the streamingEventsPayload middleware to the stack.
+func AddStreamingEventsPayload(stack *middleware.Stack) error {
+	return stack.Finalize.Add(&StreamingEventsPayload{}, middleware.Before)
+}
+
+// ID identifies the middleware.
+func (s *StreamingEventsPayload) ID() string {
+	return computePayloadHashMiddlewareID
+}
+
+// HandleFinalize marks the input stream to be signed with SigV4.
+func (s *StreamingEventsPayload) HandleFinalize(
+	ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler,
+) (
+	out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
+) {
+	contentSHA := GetPayloadHash(ctx)
+	if len(contentSHA) == 0 {
+		contentSHA = v4Internal.StreamingEventsPayload
+	}
+
+	ctx = SetPayloadHash(ctx, contentSHA)
+
+	return next.HandleFinalize(ctx, in)
+}
+
+// GetSignedRequestSignature attempts to extract the signature of the request.
+// Returning an error if the request is unsigned, or unable to extract the
+// signature.
+func GetSignedRequestSignature(r *http.Request) ([]byte, error) {
+	const authHeaderSignatureElem = "Signature="
+
+	if auth := r.Header.Get(authorizationHeader); len(auth) != 0 {
+		ps := strings.Split(auth, ",")
+		for _, p := range ps {
+			p = strings.TrimSpace(p)
+			if idx := strings.Index(p, authHeaderSignatureElem); idx >= 0 {
+				sig := p[len(authHeaderSignatureElem):]
+				if len(sig) == 0 {
+					return nil, fmt.Errorf("invalid request signature authorization header")
+				}
+				return hex.DecodeString(sig)
+			}
+		}
+	}
+
+	if sig := r.URL.Query().Get("X-Amz-Signature"); len(sig) != 0 {
+		return hex.DecodeString(sig)
+	}
+
+	return nil, fmt.Errorf("request not signed")
+}
+
+func haveCredentialProvider(p aws.CredentialsProvider) bool {
+	if p == nil {
+		return false
+	}
+
+	return !aws.IsCredentialsProvider(p, (*aws.AnonymousCredentials)(nil))
+}
+
+type payloadHashKey struct{}
+
+// GetPayloadHash retrieves the payload hash to use for signing
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func GetPayloadHash(ctx context.Context) (v string) {
+	v, _ = middleware.GetStackValue(ctx, payloadHashKey{}).(string)
+	return v
+}
+
+// SetPayloadHash sets the payload hash to be used for signing the request
+//
+// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
+// to clear all stack values.
+func SetPayloadHash(ctx context.Context, hash string) context.Context {
+	return middleware.WithStackValue(ctx, payloadHashKey{}, hash)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/v4/presign_middleware.go

@@ -0,0 +1,127 @@
+package v4
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
+	"github.com/aws/aws-sdk-go-v2/internal/sdk"
+	"github.com/aws/smithy-go/middleware"
+	smithyHTTP "github.com/aws/smithy-go/transport/http"
+)
+
+// HTTPPresigner is an interface to a SigV4 signer that can sign create a
+// presigned URL for a HTTP requests.
+type HTTPPresigner interface {
+	PresignHTTP(
+		ctx context.Context, credentials aws.Credentials, r *http.Request,
+		payloadHash string, service string, region string, signingTime time.Time,
+		optFns ...func(*SignerOptions),
+	) (url string, signedHeader http.Header, err error)
+}
+
+// PresignedHTTPRequest provides the URL and signed headers that are included
+// in the presigned URL.
+type PresignedHTTPRequest struct {
+	URL          string
+	Method       string
+	SignedHeader http.Header
+}
+
+// PresignHTTPRequestMiddlewareOptions is the options for the PresignHTTPRequestMiddleware middleware.
+type PresignHTTPRequestMiddlewareOptions struct {
+	CredentialsProvider aws.CredentialsProvider
+	Presigner           HTTPPresigner
+	LogSigning          bool
+}
+
+// PresignHTTPRequestMiddleware provides the Finalize middleware for creating a
+// presigned URL for an HTTP request.
+//
+// Will short circuit the middleware stack and not forward onto the next
+// Finalize handler.
+type PresignHTTPRequestMiddleware struct {
+	credentialsProvider aws.CredentialsProvider
+	presigner           HTTPPresigner
+	logSigning          bool
+}
+
+// NewPresignHTTPRequestMiddleware returns a new PresignHTTPRequestMiddleware
+// initialized with the presigner.
+func NewPresignHTTPRequestMiddleware(options PresignHTTPRequestMiddlewareOptions) *PresignHTTPRequestMiddleware {
+	return &PresignHTTPRequestMiddleware{
+		credentialsProvider: options.CredentialsProvider,
+		presigner:           options.Presigner,
+		logSigning:          options.LogSigning,
+	}
+}
+
+// ID provides the middleware ID.
+func (*PresignHTTPRequestMiddleware) ID() string { return "PresignHTTPRequest" }
+
+// HandleFinalize will take the provided input and create a presigned url for
+// the http request using the SigV4 presign authentication scheme.
+//
+// Since the signed request is not a valid HTTP request
+func (s *PresignHTTPRequestMiddleware) HandleFinalize(
+	ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler,
+) (
+	out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
+) {
+	req, ok := in.Request.(*smithyHTTP.Request)
+	if !ok {
+		return out, metadata, &SigningError{
+			Err: fmt.Errorf("unexpected request middleware type %T", in.Request),
+		}
+	}
+
+	httpReq := req.Build(ctx)
+	if !haveCredentialProvider(s.credentialsProvider) {
+		out.Result = &PresignedHTTPRequest{
+			URL:          httpReq.URL.String(),
+			Method:       httpReq.Method,
+			SignedHeader: http.Header{},
+		}
+
+		return out, metadata, nil
+	}
+
+	signingName := awsmiddleware.GetSigningName(ctx)
+	signingRegion := awsmiddleware.GetSigningRegion(ctx)
+	payloadHash := GetPayloadHash(ctx)
+	if len(payloadHash) == 0 {
+		return out, metadata, &SigningError{
+			Err: fmt.Errorf("computed payload hash missing from context"),
+		}
+	}
+
+	credentials, err := s.credentialsProvider.Retrieve(ctx)
+	if err != nil {
+		return out, metadata, &SigningError{
+			Err: fmt.Errorf("failed to retrieve credentials: %w", err),
+		}
+	}
+
+	u, h, err := s.presigner.PresignHTTP(ctx, credentials,
+		httpReq, payloadHash, signingName, signingRegion, sdk.NowTime(),
+		func(o *SignerOptions) {
+			o.Logger = middleware.GetLogger(ctx)
+			o.LogSigning = s.logSigning
+		})
+	if err != nil {
+		return out, metadata, &SigningError{
+			Err: fmt.Errorf("failed to sign http request, %w", err),
+		}
+	}
+
+	out.Result = &PresignedHTTPRequest{
+		URL:          u,
+		Method:       httpReq.Method,
+		SignedHeader: h,
+	}
+
+	return out, metadata, nil
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/v4/stream.go

@@ -0,0 +1,86 @@
+package v4
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"github.com/aws/aws-sdk-go-v2/aws"
+	v4Internal "github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4"
+	"strings"
+	"time"
+)
+
+// EventStreamSigner is an AWS EventStream protocol signer.
+type EventStreamSigner interface {
+	GetSignature(ctx context.Context, headers, payload []byte, signingTime time.Time, optFns ...func(*StreamSignerOptions)) ([]byte, error)
+}
+
+// StreamSignerOptions is the configuration options for StreamSigner.
+type StreamSignerOptions struct{}
+
+// StreamSigner implements Signature Version 4 (SigV4) signing of event stream encoded payloads.
+type StreamSigner struct {
+	options StreamSignerOptions
+
+	credentials aws.Credentials
+	service     string
+	region      string
+
+	prevSignature []byte
+
+	signingKeyDeriver *v4Internal.SigningKeyDeriver
+}
+
+// NewStreamSigner returns a new AWS EventStream protocol signer.
+func NewStreamSigner(credentials aws.Credentials, service, region string, seedSignature []byte, optFns ...func(*StreamSignerOptions)) *StreamSigner {
+	o := StreamSignerOptions{}
+
+	for _, fn := range optFns {
+		fn(&o)
+	}
+
+	return &StreamSigner{
+		options:           o,
+		credentials:       credentials,
+		service:           service,
+		region:            region,
+		signingKeyDeriver: v4Internal.NewSigningKeyDeriver(),
+		prevSignature:     seedSignature,
+	}
+}
+
+// GetSignature signs the provided header and payload bytes.
+func (s *StreamSigner) GetSignature(ctx context.Context, headers, payload []byte, signingTime time.Time, optFns ...func(*StreamSignerOptions)) ([]byte, error) {
+	options := s.options
+
+	for _, fn := range optFns {
+		fn(&options)
+	}
+
+	prevSignature := s.prevSignature
+
+	st := v4Internal.NewSigningTime(signingTime.UTC())
+
+	sigKey := s.signingKeyDeriver.DeriveKey(s.credentials, s.service, s.region, st)
+
+	scope := v4Internal.BuildCredentialScope(st, s.region, s.service)
+
+	stringToSign := s.buildEventStreamStringToSign(headers, payload, prevSignature, scope, &st)
+
+	signature := v4Internal.HMACSHA256(sigKey, []byte(stringToSign))
+	s.prevSignature = signature
+
+	return signature, nil
+}
+
+func (s *StreamSigner) buildEventStreamStringToSign(headers, payload, previousSignature []byte, credentialScope string, signingTime *v4Internal.SigningTime) string {
+	hash := sha256.New()
+	return strings.Join([]string{
+		"AWS4-HMAC-SHA256-PAYLOAD",
+		signingTime.TimeFormat(),
+		credentialScope,
+		hex.EncodeToString(previousSignature),
+		hex.EncodeToString(makeHash(hash, headers)),
+		hex.EncodeToString(makeHash(hash, payload)),
+	}, "\n")
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/signer/v4/v4.go

@@ -0,0 +1,564 @@
+// Package v4 implements the AWS signature version 4 algorithm (commonly known
+// as SigV4).
+//
+// For more information about SigV4, see [Signing AWS API requests] in the IAM
+// user guide.
+//
+// While this implementation CAN work in an external context, it is developed
+// primarily for SDK use and you may encounter fringe behaviors around header
+// canonicalization.
+//
+// # Pre-escaping a request URI
+//
+// AWS v4 signature validation requires that the canonical string's URI path
+// component must be the escaped form of the HTTP request's path.
+//
+// The Go HTTP client will perform escaping automatically on the HTTP request.
+// This may cause signature validation errors because the request differs from
+// the URI path or query from which the signature was generated.
+//
+// Because of this, we recommend that you explicitly escape the request when
+// using this signer outside of the SDK to prevent possible signature mismatch.
+// This can be done by setting URL.Opaque on the request. The signer will
+// prefer that value, falling back to the return of URL.EscapedPath if unset.
+//
+// When setting URL.Opaque you must do so in the form of:
+//
+//	"//<hostname>/<path>"
+//
+//	// e.g.
+//	"//example.com/some/path"
+//
+// The leading "//" and hostname are required or the escaping will not work
+// correctly.
+//
+// The TestStandaloneSign unit test provides a complete example of using the
+// signer outside of the SDK and pre-escaping the URI path.
+//
+// [Signing AWS API requests]: https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_aws-signing.html
+package v4
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"hash"
+	"net/http"
+	"net/textproto"
+	"net/url"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	v4Internal "github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4"
+	"github.com/aws/smithy-go/encoding/httpbinding"
+	"github.com/aws/smithy-go/logging"
+)
+
+const (
+	signingAlgorithm    = "AWS4-HMAC-SHA256"
+	authorizationHeader = "Authorization"
+
+	// Version of signing v4
+	Version = "SigV4"
+)
+
+// HTTPSigner is an interface to a SigV4 signer that can sign HTTP requests
+type HTTPSigner interface {
+	SignHTTP(ctx context.Context, credentials aws.Credentials, r *http.Request, payloadHash string, service string, region string, signingTime time.Time, optFns ...func(*SignerOptions)) error
+}
+
+type keyDerivator interface {
+	DeriveKey(credential aws.Credentials, service, region string, signingTime v4Internal.SigningTime) []byte
+}
+
+// SignerOptions is the SigV4 Signer options.
+type SignerOptions struct {
+	// Disables the Signer's moving HTTP header key/value pairs from the HTTP
+	// request header to the request's query string. This is most commonly used
+	// with pre-signed requests preventing headers from being added to the
+	// request's query string.
+	DisableHeaderHoisting bool
+
+	// Disables the automatic escaping of the URI path of the request for the
+	// siganture's canonical string's path. For services that do not need additional
+	// escaping then use this to disable the signer escaping the path.
+	//
+	// S3 is an example of a service that does not need additional escaping.
+	//
+	// http://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html
+	DisableURIPathEscaping bool
+
+	// The logger to send log messages to.
+	Logger logging.Logger
+
+	// Enable logging of signed requests.
+	// This will enable logging of the canonical request, the string to sign, and for presigning the subsequent
+	// presigned URL.
+	LogSigning bool
+
+	// Disables setting the session token on the request as part of signing
+	// through X-Amz-Security-Token. This is needed for variations of v4 that
+	// present the token elsewhere.
+	DisableSessionToken bool
+}
+
+// Signer applies AWS v4 signing to given request. Use this to sign requests
+// that need to be signed with AWS V4 Signatures.
+type Signer struct {
+	options      SignerOptions
+	keyDerivator keyDerivator
+}
+
+// NewSigner returns a new SigV4 Signer
+func NewSigner(optFns ...func(signer *SignerOptions)) *Signer {
+	options := SignerOptions{}
+
+	for _, fn := range optFns {
+		fn(&options)
+	}
+
+	return &Signer{options: options, keyDerivator: v4Internal.NewSigningKeyDeriver()}
+}
+
+type httpSigner struct {
+	Request      *http.Request
+	ServiceName  string
+	Region       string
+	Time         v4Internal.SigningTime
+	Credentials  aws.Credentials
+	KeyDerivator keyDerivator
+	IsPreSign    bool
+
+	PayloadHash string
+
+	DisableHeaderHoisting  bool
+	DisableURIPathEscaping bool
+	DisableSessionToken    bool
+}
+
+func (s *httpSigner) Build() (signedRequest, error) {
+	req := s.Request
+
+	query := req.URL.Query()
+	headers := req.Header
+
+	s.setRequiredSigningFields(headers, query)
+
+	// Sort Each Query Key's Values
+	for key := range query {
+		sort.Strings(query[key])
+	}
+
+	v4Internal.SanitizeHostForHeader(req)
+
+	credentialScope := s.buildCredentialScope()
+	credentialStr := s.Credentials.AccessKeyID + "/" + credentialScope
+	if s.IsPreSign {
+		query.Set(v4Internal.AmzCredentialKey, credentialStr)
+	}
+
+	unsignedHeaders := headers
+	if s.IsPreSign && !s.DisableHeaderHoisting {
+		var urlValues url.Values
+		urlValues, unsignedHeaders = buildQuery(v4Internal.AllowedQueryHoisting, headers)
+		for k := range urlValues {
+			query[k] = urlValues[k]
+		}
+	}
+
+	host := req.URL.Host
+	if len(req.Host) > 0 {
+		host = req.Host
+	}
+
+	signedHeaders, signedHeadersStr, canonicalHeaderStr := s.buildCanonicalHeaders(host, v4Internal.IgnoredHeaders, unsignedHeaders, s.Request.ContentLength)
+
+	if s.IsPreSign {
+		query.Set(v4Internal.AmzSignedHeadersKey, signedHeadersStr)
+	}
+
+	var rawQuery strings.Builder
+	rawQuery.WriteString(strings.Replace(query.Encode(), "+", "%20", -1))
+
+	canonicalURI := v4Internal.GetURIPath(req.URL)
+	if !s.DisableURIPathEscaping {
+		canonicalURI = httpbinding.EscapePath(canonicalURI, false)
+	}
+
+	canonicalString := s.buildCanonicalString(
+		req.Method,
+		canonicalURI,
+		rawQuery.String(),
+		signedHeadersStr,
+		canonicalHeaderStr,
+	)
+
+	strToSign := s.buildStringToSign(credentialScope, canonicalString)
+	signingSignature, err := s.buildSignature(strToSign)
+	if err != nil {
+		return signedRequest{}, err
+	}
+
+	if s.IsPreSign {
+		rawQuery.WriteString("&X-Amz-Signature=")
+		rawQuery.WriteString(signingSignature)
+	} else {
+		headers[authorizationHeader] = append(headers[authorizationHeader][:0], buildAuthorizationHeader(credentialStr, signedHeadersStr, signingSignature))
+	}
+
+	req.URL.RawQuery = rawQuery.String()
+
+	return signedRequest{
+		Request:         req,
+		SignedHeaders:   signedHeaders,
+		CanonicalString: canonicalString,
+		StringToSign:    strToSign,
+		PreSigned:       s.IsPreSign,
+	}, nil
+}
+
+func buildAuthorizationHeader(credentialStr, signedHeadersStr, signingSignature string) string {
+	const credential = "Credential="
+	const signedHeaders = "SignedHeaders="
+	const signature = "Signature="
+	const commaSpace = ", "
+
+	var parts strings.Builder
+	parts.Grow(len(signingAlgorithm) + 1 +
+		len(credential) + len(credentialStr) + 2 +
+		len(signedHeaders) + len(signedHeadersStr) + 2 +
+		len(signature) + len(signingSignature),
+	)
+	parts.WriteString(signingAlgorithm)
+	parts.WriteRune(' ')
+	parts.WriteString(credential)
+	parts.WriteString(credentialStr)
+	parts.WriteString(commaSpace)
+	parts.WriteString(signedHeaders)
+	parts.WriteString(signedHeadersStr)
+	parts.WriteString(commaSpace)
+	parts.WriteString(signature)
+	parts.WriteString(signingSignature)
+	return parts.String()
+}
+
+// SignHTTP signs AWS v4 requests with the provided payload hash, service name, region the
+// request is made to, and time the request is signed at. The signTime allows
+// you to specify that a request is signed for the future, and cannot be
+// used until then.
+//
+// The payloadHash is the hex encoded SHA-256 hash of the request payload, and
+// must be provided. Even if the request has no payload (aka body). If the
+// request has no payload you should use the hex encoded SHA-256 of an empty
+// string as the payloadHash value.
+//
+//	"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+//
+// Some services such as Amazon S3 accept alternative values for the payload
+// hash, such as "UNSIGNED-PAYLOAD" for requests where the body will not be
+// included in the request signature.
+//
+// https://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-header-based-auth.html
+//
+// Sign differs from Presign in that it will sign the request using HTTP
+// header values. This type of signing is intended for http.Request values that
+// will not be shared, or are shared in a way the header values on the request
+// will not be lost.
+//
+// The passed in request will be modified in place.
+func (s Signer) SignHTTP(ctx context.Context, credentials aws.Credentials, r *http.Request, payloadHash string, service string, region string, signingTime time.Time, optFns ...func(options *SignerOptions)) error {
+	options := s.options
+
+	for _, fn := range optFns {
+		fn(&options)
+	}
+
+	signer := &httpSigner{
+		Request:                r,
+		PayloadHash:            payloadHash,
+		ServiceName:            service,
+		Region:                 region,
+		Credentials:            credentials,
+		Time:                   v4Internal.NewSigningTime(signingTime.UTC()),
+		DisableHeaderHoisting:  options.DisableHeaderHoisting,
+		DisableURIPathEscaping: options.DisableURIPathEscaping,
+		DisableSessionToken:    options.DisableSessionToken,
+		KeyDerivator:           s.keyDerivator,
+	}
+
+	signedRequest, err := signer.Build()
+	if err != nil {
+		return err
+	}
+
+	logSigningInfo(ctx, options, &signedRequest, false)
+
+	return nil
+}
+
+// PresignHTTP signs AWS v4 requests with the payload hash, service name, region
+// the request is made to, and time the request is signed at. The signTime
+// allows you to specify that a request is signed for the future, and cannot
+// be used until then.
+//
+// Returns the signed URL and the map of HTTP headers that were included in the
+// signature or an error if signing the request failed. For presigned requests
+// these headers and their values must be included on the HTTP request when it
+// is made. This is helpful to know what header values need to be shared with
+// the party the presigned request will be distributed to.
+//
+// The payloadHash is the hex encoded SHA-256 hash of the request payload, and
+// must be provided. Even if the request has no payload (aka body). If the
+// request has no payload you should use the hex encoded SHA-256 of an empty
+// string as the payloadHash value.
+//
+//	"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+//
+// Some services such as Amazon S3 accept alternative values for the payload
+// hash, such as "UNSIGNED-PAYLOAD" for requests where the body will not be
+// included in the request signature.
+//
+// https://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-header-based-auth.html
+//
+// PresignHTTP differs from SignHTTP in that it will sign the request using
+// query string instead of header values. This allows you to share the
+// Presigned Request's URL with third parties, or distribute it throughout your
+// system with minimal dependencies.
+//
+// PresignHTTP will not set the expires time of the presigned request
+// automatically. To specify the expire duration for a request add the
+// "X-Amz-Expires" query parameter on the request with the value as the
+// duration in seconds the presigned URL should be considered valid for. This
+// parameter is not used by all AWS services, and is most notable used by
+// Amazon S3 APIs.
+//
+//	expires := 20 * time.Minute
+//	query := req.URL.Query()
+//	query.Set("X-Amz-Expires", strconv.FormatInt(int64(expires/time.Second), 10))
+//	req.URL.RawQuery = query.Encode()
+//
+// This method does not modify the provided request.
+func (s *Signer) PresignHTTP(
+	ctx context.Context, credentials aws.Credentials, r *http.Request,
+	payloadHash string, service string, region string, signingTime time.Time,
+	optFns ...func(*SignerOptions),
+) (signedURI string, signedHeaders http.Header, err error) {
+	options := s.options
+
+	for _, fn := range optFns {
+		fn(&options)
+	}
+
+	signer := &httpSigner{
+		Request:                r.Clone(r.Context()),
+		PayloadHash:            payloadHash,
+		ServiceName:            service,
+		Region:                 region,
+		Credentials:            credentials,
+		Time:                   v4Internal.NewSigningTime(signingTime.UTC()),
+		IsPreSign:              true,
+		DisableHeaderHoisting:  options.DisableHeaderHoisting,
+		DisableURIPathEscaping: options.DisableURIPathEscaping,
+		DisableSessionToken:    options.DisableSessionToken,
+		KeyDerivator:           s.keyDerivator,
+	}
+
+	signedRequest, err := signer.Build()
+	if err != nil {
+		return "", nil, err
+	}
+
+	logSigningInfo(ctx, options, &signedRequest, true)
+
+	signedHeaders = make(http.Header)
+
+	// For the signed headers we canonicalize the header keys in the returned map.
+	// This avoids situations where can standard library double headers like host header. For example the standard
+	// library will set the Host header, even if it is present in lower-case form.
+	for k, v := range signedRequest.SignedHeaders {
+		key := textproto.CanonicalMIMEHeaderKey(k)
+		signedHeaders[key] = append(signedHeaders[key], v...)
+	}
+
+	return signedRequest.Request.URL.String(), signedHeaders, nil
+}
+
+func (s *httpSigner) buildCredentialScope() string {
+	return v4Internal.BuildCredentialScope(s.Time, s.Region, s.ServiceName)
+}
+
+func buildQuery(r v4Internal.Rule, header http.Header) (url.Values, http.Header) {
+	query := url.Values{}
+	unsignedHeaders := http.Header{}
+
+	// A list of headers to be converted to lower case to mitigate a limitation from S3
+	lowerCaseHeaders := map[string]string{
+		"X-Amz-Expected-Bucket-Owner": "x-amz-expected-bucket-owner", // see #2508
+		"X-Amz-Request-Payer":         "x-amz-request-payer",         // see #2764
+	}
+
+	for k, h := range header {
+		if newKey, ok := lowerCaseHeaders[k]; ok {
+			k = newKey
+		}
+
+		if r.IsValid(k) {
+			query[k] = h
+		} else {
+			unsignedHeaders[k] = h
+		}
+	}
+
+	return query, unsignedHeaders
+}
+
+func (s *httpSigner) buildCanonicalHeaders(host string, rule v4Internal.Rule, header http.Header, length int64) (signed http.Header, signedHeaders, canonicalHeadersStr string) {
+	signed = make(http.Header)
+
+	var headers []string
+	const hostHeader = "host"
+	headers = append(headers, hostHeader)
+	signed[hostHeader] = append(signed[hostHeader], host)
+
+	const contentLengthHeader = "content-length"
+	if length > 0 {
+		headers = append(headers, contentLengthHeader)
+		signed[contentLengthHeader] = append(signed[contentLengthHeader], strconv.FormatInt(length, 10))
+	}
+
+	for k, v := range header {
+		if !rule.IsValid(k) {
+			continue // ignored header
+		}
+		if strings.EqualFold(k, contentLengthHeader) {
+			// prevent signing already handled content-length header.
+			continue
+		}
+
+		lowerCaseKey := strings.ToLower(k)
+		if _, ok := signed[lowerCaseKey]; ok {
+			// include additional values
+			signed[lowerCaseKey] = append(signed[lowerCaseKey], v...)
+			continue
+		}
+
+		headers = append(headers, lowerCaseKey)
+		signed[lowerCaseKey] = v
+	}
+	sort.Strings(headers)
+
+	signedHeaders = strings.Join(headers, ";")
+
+	var canonicalHeaders strings.Builder
+	n := len(headers)
+	const colon = ':'
+	for i := 0; i < n; i++ {
+		if headers[i] == hostHeader {
+			canonicalHeaders.WriteString(hostHeader)
+			canonicalHeaders.WriteRune(colon)
+			canonicalHeaders.WriteString(v4Internal.StripExcessSpaces(host))
+		} else {
+			canonicalHeaders.WriteString(headers[i])
+			canonicalHeaders.WriteRune(colon)
+			// Trim out leading, trailing, and dedup inner spaces from signed header values.
+			values := signed[headers[i]]
+			for j, v := range values {
+				cleanedValue := strings.TrimSpace(v4Internal.StripExcessSpaces(v))
+				canonicalHeaders.WriteString(cleanedValue)
+				if j < len(values)-1 {
+					canonicalHeaders.WriteRune(',')
+				}
+			}
+		}
+		canonicalHeaders.WriteRune('\n')
+	}
+	canonicalHeadersStr = canonicalHeaders.String()
+
+	return signed, signedHeaders, canonicalHeadersStr
+}
+
+func (s *httpSigner) buildCanonicalString(method, uri, query, signedHeaders, canonicalHeaders string) string {
+	return strings.Join([]string{
+		method,
+		uri,
+		query,
+		canonicalHeaders,
+		signedHeaders,
+		s.PayloadHash,
+	}, "\n")
+}
+
+func (s *httpSigner) buildStringToSign(credentialScope, canonicalRequestString string) string {
+	return strings.Join([]string{
+		signingAlgorithm,
+		s.Time.TimeFormat(),
+		credentialScope,
+		hex.EncodeToString(makeHash(sha256.New(), []byte(canonicalRequestString))),
+	}, "\n")
+}
+
+func makeHash(hash hash.Hash, b []byte) []byte {
+	hash.Reset()
+	hash.Write(b)
+	return hash.Sum(nil)
+}
+
+func (s *httpSigner) buildSignature(strToSign string) (string, error) {
+	key := s.KeyDerivator.DeriveKey(s.Credentials, s.ServiceName, s.Region, s.Time)
+	return hex.EncodeToString(v4Internal.HMACSHA256(key, []byte(strToSign))), nil
+}
+
+func (s *httpSigner) setRequiredSigningFields(headers http.Header, query url.Values) {
+	amzDate := s.Time.TimeFormat()
+
+	if s.IsPreSign {
+		query.Set(v4Internal.AmzAlgorithmKey, signingAlgorithm)
+		sessionToken := s.Credentials.SessionToken
+		if !s.DisableSessionToken && len(sessionToken) > 0 {
+			query.Set("X-Amz-Security-Token", sessionToken)
+		}
+
+		query.Set(v4Internal.AmzDateKey, amzDate)
+		return
+	}
+
+	headers[v4Internal.AmzDateKey] = append(headers[v4Internal.AmzDateKey][:0], amzDate)
+
+	if !s.DisableSessionToken && len(s.Credentials.SessionToken) > 0 {
+		headers[v4Internal.AmzSecurityTokenKey] = append(headers[v4Internal.AmzSecurityTokenKey][:0], s.Credentials.SessionToken)
+	}
+}
+
+func logSigningInfo(ctx context.Context, options SignerOptions, request *signedRequest, isPresign bool) {
+	if !options.LogSigning {
+		return
+	}
+	signedURLMsg := ""
+	if isPresign {
+		signedURLMsg = fmt.Sprintf(logSignedURLMsg, request.Request.URL.String())
+	}
+	logger := logging.WithContext(ctx, options.Logger)
+	logger.Logf(logging.Debug, logSignInfoMsg, request.CanonicalString, request.StringToSign, signedURLMsg)
+}
+
+type signedRequest struct {
+	Request         *http.Request
+	SignedHeaders   http.Header
+	CanonicalString string
+	StringToSign    string
+	PreSigned       bool
+}
+
+const logSignInfoMsg = `Request Signature:
+---[ CANONICAL STRING  ]-----------------------------
+%s
+---[ STRING TO SIGN ]--------------------------------
+%s%s
+-----------------------------------------------------`
+const logSignedURLMsg = `
+---[ SIGNED URL ]------------------------------------
+%s`

go/vendor/github.com/aws/aws-sdk-go-v2/aws/to_ptr.go

@@ -0,0 +1,297 @@
+// Code generated by aws/generate.go DO NOT EDIT.
+
+package aws
+
+import (
+	"github.com/aws/smithy-go/ptr"
+	"time"
+)
+
+// Bool returns a pointer value for the bool value passed in.
+func Bool(v bool) *bool {
+	return ptr.Bool(v)
+}
+
+// BoolSlice returns a slice of bool pointers from the values
+// passed in.
+func BoolSlice(vs []bool) []*bool {
+	return ptr.BoolSlice(vs)
+}
+
+// BoolMap returns a map of bool pointers from the values
+// passed in.
+func BoolMap(vs map[string]bool) map[string]*bool {
+	return ptr.BoolMap(vs)
+}
+
+// Byte returns a pointer value for the byte value passed in.
+func Byte(v byte) *byte {
+	return ptr.Byte(v)
+}
+
+// ByteSlice returns a slice of byte pointers from the values
+// passed in.
+func ByteSlice(vs []byte) []*byte {
+	return ptr.ByteSlice(vs)
+}
+
+// ByteMap returns a map of byte pointers from the values
+// passed in.
+func ByteMap(vs map[string]byte) map[string]*byte {
+	return ptr.ByteMap(vs)
+}
+
+// String returns a pointer value for the string value passed in.
+func String(v string) *string {
+	return ptr.String(v)
+}
+
+// StringSlice returns a slice of string pointers from the values
+// passed in.
+func StringSlice(vs []string) []*string {
+	return ptr.StringSlice(vs)
+}
+
+// StringMap returns a map of string pointers from the values
+// passed in.
+func StringMap(vs map[string]string) map[string]*string {
+	return ptr.StringMap(vs)
+}
+
+// Int returns a pointer value for the int value passed in.
+func Int(v int) *int {
+	return ptr.Int(v)
+}
+
+// IntSlice returns a slice of int pointers from the values
+// passed in.
+func IntSlice(vs []int) []*int {
+	return ptr.IntSlice(vs)
+}
+
+// IntMap returns a map of int pointers from the values
+// passed in.
+func IntMap(vs map[string]int) map[string]*int {
+	return ptr.IntMap(vs)
+}
+
+// Int8 returns a pointer value for the int8 value passed in.
+func Int8(v int8) *int8 {
+	return ptr.Int8(v)
+}
+
+// Int8Slice returns a slice of int8 pointers from the values
+// passed in.
+func Int8Slice(vs []int8) []*int8 {
+	return ptr.Int8Slice(vs)
+}
+
+// Int8Map returns a map of int8 pointers from the values
+// passed in.
+func Int8Map(vs map[string]int8) map[string]*int8 {
+	return ptr.Int8Map(vs)
+}
+
+// Int16 returns a pointer value for the int16 value passed in.
+func Int16(v int16) *int16 {
+	return ptr.Int16(v)
+}
+
+// Int16Slice returns a slice of int16 pointers from the values
+// passed in.
+func Int16Slice(vs []int16) []*int16 {
+	return ptr.Int16Slice(vs)
+}
+
+// Int16Map returns a map of int16 pointers from the values
+// passed in.
+func Int16Map(vs map[string]int16) map[string]*int16 {
+	return ptr.Int16Map(vs)
+}
+
+// Int32 returns a pointer value for the int32 value passed in.
+func Int32(v int32) *int32 {
+	return ptr.Int32(v)
+}
+
+// Int32Slice returns a slice of int32 pointers from the values
+// passed in.
+func Int32Slice(vs []int32) []*int32 {
+	return ptr.Int32Slice(vs)
+}
+
+// Int32Map returns a map of int32 pointers from the values
+// passed in.
+func Int32Map(vs map[string]int32) map[string]*int32 {
+	return ptr.Int32Map(vs)
+}
+
+// Int64 returns a pointer value for the int64 value passed in.
+func Int64(v int64) *int64 {
+	return ptr.Int64(v)
+}
+
+// Int64Slice returns a slice of int64 pointers from the values
+// passed in.
+func Int64Slice(vs []int64) []*int64 {
+	return ptr.Int64Slice(vs)
+}
+
+// Int64Map returns a map of int64 pointers from the values
+// passed in.
+func Int64Map(vs map[string]int64) map[string]*int64 {
+	return ptr.Int64Map(vs)
+}
+
+// Uint returns a pointer value for the uint value passed in.
+func Uint(v uint) *uint {
+	return ptr.Uint(v)
+}
+
+// UintSlice returns a slice of uint pointers from the values
+// passed in.
+func UintSlice(vs []uint) []*uint {
+	return ptr.UintSlice(vs)
+}
+
+// UintMap returns a map of uint pointers from the values
+// passed in.
+func UintMap(vs map[string]uint) map[string]*uint {
+	return ptr.UintMap(vs)
+}
+
+// Uint8 returns a pointer value for the uint8 value passed in.
+func Uint8(v uint8) *uint8 {
+	return ptr.Uint8(v)
+}
+
+// Uint8Slice returns a slice of uint8 pointers from the values
+// passed in.
+func Uint8Slice(vs []uint8) []*uint8 {
+	return ptr.Uint8Slice(vs)
+}
+
+// Uint8Map returns a map of uint8 pointers from the values
+// passed in.
+func Uint8Map(vs map[string]uint8) map[string]*uint8 {
+	return ptr.Uint8Map(vs)
+}
+
+// Uint16 returns a pointer value for the uint16 value passed in.
+func Uint16(v uint16) *uint16 {
+	return ptr.Uint16(v)
+}
+
+// Uint16Slice returns a slice of uint16 pointers from the values
+// passed in.
+func Uint16Slice(vs []uint16) []*uint16 {
+	return ptr.Uint16Slice(vs)
+}
+
+// Uint16Map returns a map of uint16 pointers from the values
+// passed in.
+func Uint16Map(vs map[string]uint16) map[string]*uint16 {
+	return ptr.Uint16Map(vs)
+}
+
+// Uint32 returns a pointer value for the uint32 value passed in.
+func Uint32(v uint32) *uint32 {
+	return ptr.Uint32(v)
+}
+
+// Uint32Slice returns a slice of uint32 pointers from the values
+// passed in.
+func Uint32Slice(vs []uint32) []*uint32 {
+	return ptr.Uint32Slice(vs)
+}
+
+// Uint32Map returns a map of uint32 pointers from the values
+// passed in.
+func Uint32Map(vs map[string]uint32) map[string]*uint32 {
+	return ptr.Uint32Map(vs)
+}
+
+// Uint64 returns a pointer value for the uint64 value passed in.
+func Uint64(v uint64) *uint64 {
+	return ptr.Uint64(v)
+}
+
+// Uint64Slice returns a slice of uint64 pointers from the values
+// passed in.
+func Uint64Slice(vs []uint64) []*uint64 {
+	return ptr.Uint64Slice(vs)
+}
+
+// Uint64Map returns a map of uint64 pointers from the values
+// passed in.
+func Uint64Map(vs map[string]uint64) map[string]*uint64 {
+	return ptr.Uint64Map(vs)
+}
+
+// Float32 returns a pointer value for the float32 value passed in.
+func Float32(v float32) *float32 {
+	return ptr.Float32(v)
+}
+
+// Float32Slice returns a slice of float32 pointers from the values
+// passed in.
+func Float32Slice(vs []float32) []*float32 {
+	return ptr.Float32Slice(vs)
+}
+
+// Float32Map returns a map of float32 pointers from the values
+// passed in.
+func Float32Map(vs map[string]float32) map[string]*float32 {
+	return ptr.Float32Map(vs)
+}
+
+// Float64 returns a pointer value for the float64 value passed in.
+func Float64(v float64) *float64 {
+	return ptr.Float64(v)
+}
+
+// Float64Slice returns a slice of float64 pointers from the values
+// passed in.
+func Float64Slice(vs []float64) []*float64 {
+	return ptr.Float64Slice(vs)
+}
+
+// Float64Map returns a map of float64 pointers from the values
+// passed in.
+func Float64Map(vs map[string]float64) map[string]*float64 {
+	return ptr.Float64Map(vs)
+}
+
+// Time returns a pointer value for the time.Time value passed in.
+func Time(v time.Time) *time.Time {
+	return ptr.Time(v)
+}
+
+// TimeSlice returns a slice of time.Time pointers from the values
+// passed in.
+func TimeSlice(vs []time.Time) []*time.Time {
+	return ptr.TimeSlice(vs)
+}
+
+// TimeMap returns a map of time.Time pointers from the values
+// passed in.
+func TimeMap(vs map[string]time.Time) map[string]*time.Time {
+	return ptr.TimeMap(vs)
+}
+
+// Duration returns a pointer value for the time.Duration value passed in.
+func Duration(v time.Duration) *time.Duration {
+	return ptr.Duration(v)
+}
+
+// DurationSlice returns a slice of time.Duration pointers from the values
+// passed in.
+func DurationSlice(vs []time.Duration) []*time.Duration {
+	return ptr.DurationSlice(vs)
+}
+
+// DurationMap returns a map of time.Duration pointers from the values
+// passed in.
+func DurationMap(vs map[string]time.Duration) map[string]*time.Duration {
+	return ptr.DurationMap(vs)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/client.go

@@ -0,0 +1,342 @@
+package http
+
+import (
+	"context"
+	"crypto/tls"
+	"net"
+	"net/http"
+	"reflect"
+	"sync"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/smithy-go/tracing"
+)
+
+// Defaults for the HTTPTransportBuilder.
+var (
+	// Default connection pool options
+	DefaultHTTPTransportMaxIdleConns        = 100
+	DefaultHTTPTransportMaxIdleConnsPerHost = 10
+
+	// Default connection timeouts
+	DefaultHTTPTransportIdleConnTimeout       = 90 * time.Second
+	DefaultHTTPTransportTLSHandleshakeTimeout = 10 * time.Second
+	DefaultHTTPTransportExpectContinueTimeout = 1 * time.Second
+
+	// Default to TLS 1.2 for all HTTPS requests.
+	DefaultHTTPTransportTLSMinVersion uint16 = tls.VersionTLS12
+)
+
+// Timeouts for net.Dialer's network connection.
+var (
+	DefaultDialConnectTimeout   = 30 * time.Second
+	DefaultDialKeepAliveTimeout = 30 * time.Second
+)
+
+// BuildableClient provides a HTTPClient implementation with options to
+// create copies of the HTTPClient when additional configuration is provided.
+//
+// The client's methods will not share the http.Transport value between copies
+// of the BuildableClient. Only exported member values of the Transport and
+// optional Dialer will be copied between copies of BuildableClient.
+type BuildableClient struct {
+	transport *http.Transport
+	dialer    *net.Dialer
+
+	initOnce sync.Once
+
+	clientTimeout time.Duration
+	client        *http.Client
+}
+
+// NewBuildableClient returns an initialized client for invoking HTTP
+// requests.
+func NewBuildableClient() *BuildableClient {
+	return &BuildableClient{}
+}
+
+// Do implements the HTTPClient interface's Do method to invoke a HTTP request,
+// and receive the response. Uses the BuildableClient's current
+// configuration to invoke the http.Request.
+//
+// If connection pooling is enabled (aka HTTP KeepAlive) the client will only
+// share pooled connections with its own instance. Copies of the
+// BuildableClient will have their own connection pools.
+//
+// Redirect (3xx) responses will not be followed, the HTTP response received
+// will returned instead.
+func (b *BuildableClient) Do(req *http.Request) (*http.Response, error) {
+	b.initOnce.Do(b.build)
+
+	return b.client.Do(req)
+}
+
+// Freeze returns a frozen aws.HTTPClient implementation that is no longer a BuildableClient.
+// Use this to prevent the SDK from applying DefaultMode configuration values to a buildable client.
+func (b *BuildableClient) Freeze() aws.HTTPClient {
+	cpy := b.clone()
+	cpy.build()
+	return cpy.client
+}
+
+func (b *BuildableClient) build() {
+	b.client = wrapWithLimitedRedirect(&http.Client{
+		Timeout:   b.clientTimeout,
+		Transport: b.GetTransport(),
+	})
+}
+
+func (b *BuildableClient) clone() *BuildableClient {
+	cpy := NewBuildableClient()
+	cpy.transport = b.GetTransport()
+	cpy.dialer = b.GetDialer()
+	cpy.clientTimeout = b.clientTimeout
+
+	return cpy
+}
+
+// WithTransportOptions copies the BuildableClient and returns it with the
+// http.Transport options applied.
+//
+// If a non (*http.Transport) was set as the round tripper, the round tripper
+// will be replaced with a default Transport value before invoking the option
+// functions.
+func (b *BuildableClient) WithTransportOptions(opts ...func(*http.Transport)) *BuildableClient {
+	cpy := b.clone()
+
+	tr := cpy.GetTransport()
+	for _, opt := range opts {
+		opt(tr)
+	}
+	cpy.transport = tr
+
+	return cpy
+}
+
+// WithDialerOptions copies the BuildableClient and returns it with the
+// net.Dialer options applied. Will set the client's http.Transport DialContext
+// member.
+func (b *BuildableClient) WithDialerOptions(opts ...func(*net.Dialer)) *BuildableClient {
+	cpy := b.clone()
+
+	dialer := cpy.GetDialer()
+	for _, opt := range opts {
+		opt(dialer)
+	}
+	cpy.dialer = dialer
+
+	tr := cpy.GetTransport()
+	tr.DialContext = cpy.dialer.DialContext
+	cpy.transport = tr
+
+	return cpy
+}
+
+// WithTimeout Sets the timeout used by the client for all requests.
+func (b *BuildableClient) WithTimeout(timeout time.Duration) *BuildableClient {
+	cpy := b.clone()
+	cpy.clientTimeout = timeout
+	return cpy
+}
+
+// GetTransport returns a copy of the client's HTTP Transport.
+func (b *BuildableClient) GetTransport() *http.Transport {
+	var tr *http.Transport
+	if b.transport != nil {
+		tr = b.transport.Clone()
+	} else {
+		tr = defaultHTTPTransport()
+	}
+
+	return tr
+}
+
+// GetDialer returns a copy of the client's network dialer.
+func (b *BuildableClient) GetDialer() *net.Dialer {
+	var dialer *net.Dialer
+	if b.dialer != nil {
+		dialer = shallowCopyStruct(b.dialer).(*net.Dialer)
+	} else {
+		dialer = defaultDialer()
+	}
+
+	return dialer
+}
+
+// GetTimeout returns a copy of the client's timeout to cancel requests with.
+func (b *BuildableClient) GetTimeout() time.Duration {
+	return b.clientTimeout
+}
+
+func defaultDialer() *net.Dialer {
+	return &net.Dialer{
+		Timeout:   DefaultDialConnectTimeout,
+		KeepAlive: DefaultDialKeepAliveTimeout,
+		DualStack: true,
+	}
+}
+
+func defaultHTTPTransport() *http.Transport {
+	dialer := defaultDialer()
+
+	tr := &http.Transport{
+		Proxy:                 http.ProxyFromEnvironment,
+		DialContext:           traceDialContext(dialer.DialContext),
+		TLSHandshakeTimeout:   DefaultHTTPTransportTLSHandleshakeTimeout,
+		MaxIdleConns:          DefaultHTTPTransportMaxIdleConns,
+		MaxIdleConnsPerHost:   DefaultHTTPTransportMaxIdleConnsPerHost,
+		IdleConnTimeout:       DefaultHTTPTransportIdleConnTimeout,
+		ExpectContinueTimeout: DefaultHTTPTransportExpectContinueTimeout,
+		ForceAttemptHTTP2:     true,
+		TLSClientConfig: &tls.Config{
+			MinVersion: DefaultHTTPTransportTLSMinVersion,
+		},
+	}
+
+	return tr
+}
+
+type dialContext func(ctx context.Context, network, addr string) (net.Conn, error)
+
+func traceDialContext(dc dialContext) dialContext {
+	return func(ctx context.Context, network, addr string) (net.Conn, error) {
+		span, _ := tracing.GetSpan(ctx)
+		span.SetProperty("net.peer.name", addr)
+
+		conn, err := dc(ctx, network, addr)
+		if err != nil {
+			return conn, err
+		}
+
+		raddr := conn.RemoteAddr()
+		if raddr == nil {
+			return conn, err
+		}
+
+		host, port, err := net.SplitHostPort(raddr.String())
+		if err != nil { // don't blow up just because we couldn't parse
+			span.SetProperty("net.peer.addr", raddr.String())
+		} else {
+			span.SetProperty("net.peer.host", host)
+			span.SetProperty("net.peer.port", port)
+		}
+
+		return conn, err
+	}
+}
+
+// shallowCopyStruct creates a shallow copy of the passed in source struct, and
+// returns that copy of the same struct type.
+func shallowCopyStruct(src interface{}) interface{} {
+	srcVal := reflect.ValueOf(src)
+	srcValType := srcVal.Type()
+
+	var returnAsPtr bool
+	if srcValType.Kind() == reflect.Ptr {
+		srcVal = srcVal.Elem()
+		srcValType = srcValType.Elem()
+		returnAsPtr = true
+	}
+	dstVal := reflect.New(srcValType).Elem()
+
+	for i := 0; i < srcValType.NumField(); i++ {
+		ft := srcValType.Field(i)
+		if len(ft.PkgPath) != 0 {
+			// unexported fields have a PkgPath
+			continue
+		}
+
+		dstVal.Field(i).Set(srcVal.Field(i))
+	}
+
+	if returnAsPtr {
+		dstVal = dstVal.Addr()
+	}
+
+	return dstVal.Interface()
+}
+
+// wrapWithLimitedRedirect updates the Client's Transport and CheckRedirect to
+// not follow any redirect other than 307 and 308. No other redirect will be
+// followed.
+//
+// If the client does not have a Transport defined will use a new SDK default
+// http.Transport configuration.
+func wrapWithLimitedRedirect(c *http.Client) *http.Client {
+	tr := c.Transport
+	if tr == nil {
+		tr = defaultHTTPTransport()
+	}
+
+	cc := *c
+	cc.CheckRedirect = limitedRedirect
+	cc.Transport = suppressBadHTTPRedirectTransport{
+		tr: tr,
+	}
+
+	return &cc
+}
+
+// limitedRedirect is a CheckRedirect that prevents the client from following
+// any non 307/308 HTTP status code redirects.
+//
+// The 307 and 308 redirects are allowed because the client must use the
+// original HTTP method for the redirected to location. Whereas 301 and 302
+// allow the client to switch to GET for the redirect.
+//
+// Suppresses all redirect requests with a URL of badHTTPRedirectLocation.
+func limitedRedirect(r *http.Request, via []*http.Request) error {
+	// Request.Response, in CheckRedirect is the response that is triggering
+	// the redirect.
+	resp := r.Response
+	if r.URL.String() == badHTTPRedirectLocation {
+		resp.Header.Del(badHTTPRedirectLocation)
+		return http.ErrUseLastResponse
+	}
+
+	switch resp.StatusCode {
+	case 307, 308:
+		// Only allow 307 and 308 redirects as they preserve the method.
+		return nil
+	}
+
+	return http.ErrUseLastResponse
+}
+
+// suppressBadHTTPRedirectTransport provides an http.RoundTripper
+// implementation that wraps another http.RoundTripper to prevent HTTP client
+// receiving 301 and 302 HTTP responses redirects without the required location
+// header.
+//
+// Clients using this utility must have a CheckRedirect, e.g. limitedRedirect,
+// that check for responses with having a URL of baseHTTPRedirectLocation, and
+// suppress the redirect.
+type suppressBadHTTPRedirectTransport struct {
+	tr http.RoundTripper
+}
+
+const badHTTPRedirectLocation = `https://amazonaws.com/badhttpredirectlocation`
+
+// RoundTrip backfills a stub location when a 301/302 response is received
+// without a location. This stub location is used by limitedRedirect to prevent
+// the HTTP client from failing attempting to use follow a redirect without a
+// location value.
+func (t suppressBadHTTPRedirectTransport) RoundTrip(r *http.Request) (*http.Response, error) {
+	resp, err := t.tr.RoundTrip(r)
+	if err != nil {
+		return resp, err
+	}
+
+	// S3 is the only known service to return 301 without location header.
+	// The Go standard library HTTP client will return an opaque error if it
+	// tries to follow a 301/302 response missing the location header.
+	switch resp.StatusCode {
+	case 301, 302:
+		if v := resp.Header.Get("Location"); len(v) == 0 {
+			resp.Header.Set("Location", badHTTPRedirectLocation)
+		}
+	}
+
+	return resp, err
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/content_type.go

@@ -0,0 +1,42 @@
+package http
+
+import (
+	"context"
+	"fmt"
+	"github.com/aws/smithy-go/middleware"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+)
+
+// removeContentTypeHeader is a build middleware that removes
+// content type header if content-length header is unset or
+// is set to zero,
+type removeContentTypeHeader struct {
+}
+
+// ID the name of the middleware.
+func (m *removeContentTypeHeader) ID() string {
+	return "RemoveContentTypeHeader"
+}
+
+// HandleBuild adds or appends the constructed user agent to the request.
+func (m *removeContentTypeHeader) HandleBuild(ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler) (
+	out middleware.BuildOutput, metadata middleware.Metadata, err error,
+) {
+	req, ok := in.Request.(*smithyhttp.Request)
+	if !ok {
+		return out, metadata, fmt.Errorf("unknown transport type %T", in)
+	}
+
+	// remove contentTypeHeader when content-length is zero
+	if req.ContentLength == 0 {
+		req.Header.Del("content-type")
+	}
+
+	return next.HandleBuild(ctx, in)
+}
+
+// RemoveContentTypeHeader removes content-type header if
+// content length is unset or equal to zero.
+func RemoveContentTypeHeader(stack *middleware.Stack) error {
+	return stack.Build.Add(&removeContentTypeHeader{}, middleware.After)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/response_error.go

@@ -0,0 +1,33 @@
+package http
+
+import (
+	"errors"
+	"fmt"
+
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+)
+
+// ResponseError provides the HTTP centric error type wrapping the underlying error
+// with the HTTP response value and the deserialized RequestID.
+type ResponseError struct {
+	*smithyhttp.ResponseError
+
+	// RequestID associated with response error
+	RequestID string
+}
+
+// ServiceRequestID returns the request id associated with Response Error
+func (e *ResponseError) ServiceRequestID() string { return e.RequestID }
+
+// Error returns the formatted error
+func (e *ResponseError) Error() string {
+	return fmt.Sprintf(
+		"https response error StatusCode: %d, RequestID: %s, %v",
+		e.Response.StatusCode, e.RequestID, e.Err)
+}
+
+// As populates target and returns true if the type of target is a error type that
+// the ResponseError embeds, (e.g.AWS HTTP ResponseError)
+func (e *ResponseError) As(target interface{}) bool {
+	return errors.As(e.ResponseError, target)
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/response_error_middleware.go

@@ -0,0 +1,56 @@
+package http
+
+import (
+	"context"
+
+	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
+	"github.com/aws/smithy-go/middleware"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+)
+
+// AddResponseErrorMiddleware adds response error wrapper middleware
+func AddResponseErrorMiddleware(stack *middleware.Stack) error {
+	// add error wrapper middleware before request id retriever middleware so that it can wrap the error response
+	// returned by operation deserializers
+	return stack.Deserialize.Insert(&ResponseErrorWrapper{}, "RequestIDRetriever", middleware.Before)
+}
+
+// ResponseErrorWrapper wraps operation errors with ResponseError.
+type ResponseErrorWrapper struct {
+}
+
+// ID returns the middleware identifier
+func (m *ResponseErrorWrapper) ID() string {
+	return "ResponseErrorWrapper"
+}
+
+// HandleDeserialize wraps the stack error with smithyhttp.ResponseError.
+func (m *ResponseErrorWrapper) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
+	out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
+) {
+	out, metadata, err = next.HandleDeserialize(ctx, in)
+	if err == nil {
+		// Nothing to do when there is no error.
+		return out, metadata, err
+	}
+
+	resp, ok := out.RawResponse.(*smithyhttp.Response)
+	if !ok {
+		// No raw response to wrap with.
+		return out, metadata, err
+	}
+
+	// look for request id in metadata
+	reqID, _ := awsmiddleware.GetRequestIDMetadata(metadata)
+
+	// Wrap the returned smithy error with the request id retrieved from the metadata
+	err = &ResponseError{
+		ResponseError: &smithyhttp.ResponseError{
+			Response: resp,
+			Err:      err,
+		},
+		RequestID: reqID,
+	}
+
+	return out, metadata, err
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/timeout_read_closer.go

@@ -0,0 +1,104 @@
+package http
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"time"
+
+	"github.com/aws/smithy-go"
+	"github.com/aws/smithy-go/middleware"
+	smithyhttp "github.com/aws/smithy-go/transport/http"
+)
+
+type readResult struct {
+	n   int
+	err error
+}
+
+// ResponseTimeoutError is an error when the reads from the response are
+// delayed longer than the timeout the read was configured for.
+type ResponseTimeoutError struct {
+	TimeoutDur time.Duration
+}
+
+// Timeout returns that the error is was caused by a timeout, and can be
+// retried.
+func (*ResponseTimeoutError) Timeout() bool { return true }
+
+func (e *ResponseTimeoutError) Error() string {
+	return fmt.Sprintf("read on body reach timeout limit, %v", e.TimeoutDur)
+}
+
+// timeoutReadCloser will handle body reads that take too long.
+// We will return a ErrReadTimeout error if a timeout occurs.
+type timeoutReadCloser struct {
+	reader   io.ReadCloser
+	duration time.Duration
+}
+
+// Read will spin off a goroutine to call the reader's Read method. We will
+// select on the timer's channel or the read's channel. Whoever completes first
+// will be returned.
+func (r *timeoutReadCloser) Read(b []byte) (int, error) {
+	timer := time.NewTimer(r.duration)
+	c := make(chan readResult, 1)
+
+	go func() {
+		n, err := r.reader.Read(b)
+		timer.Stop()
+		c <- readResult{n: n, err: err}
+	}()
+
+	select {
+	case data := <-c:
+		return data.n, data.err
+	case <-timer.C:
+		return 0, &ResponseTimeoutError{TimeoutDur: r.duration}
+	}
+}
+
+func (r *timeoutReadCloser) Close() error {
+	return r.reader.Close()
+}
+
+// AddResponseReadTimeoutMiddleware adds a middleware to the stack that wraps the
+// response body so that a read that takes too long will return an error.
+func AddResponseReadTimeoutMiddleware(stack *middleware.Stack, duration time.Duration) error {
+	return stack.Deserialize.Add(&readTimeout{duration: duration}, middleware.After)
+}
+
+// readTimeout wraps the response body with a timeoutReadCloser
+type readTimeout struct {
+	duration time.Duration
+}
+
+// ID returns the id of the middleware
+func (*readTimeout) ID() string {
+	return "ReadResponseTimeout"
+}
+
+// HandleDeserialize implements the DeserializeMiddleware interface
+func (m *readTimeout) HandleDeserialize(
+	ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler,
+) (
+	out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
+) {
+	out, metadata, err = next.HandleDeserialize(ctx, in)
+	if err != nil {
+		return out, metadata, err
+	}
+
+	response, ok := out.RawResponse.(*smithyhttp.Response)
+	if !ok {
+		return out, metadata, &smithy.DeserializationError{Err: fmt.Errorf("unknown transport type %T", out.RawResponse)}
+	}
+
+	response.Body = &timeoutReadCloser{
+		reader:   response.Body,
+		duration: m.duration,
+	}
+	out.RawResponse = response
+
+	return out, metadata, err
+}

go/vendor/github.com/aws/aws-sdk-go-v2/aws/types.go

@@ -0,0 +1,42 @@
+package aws
+
+import (
+	"fmt"
+)
+
+// Ternary is an enum allowing an unknown or none state in addition to a bool's
+// true and false.
+type Ternary int
+
+func (t Ternary) String() string {
+	switch t {
+	case UnknownTernary:
+		return "unknown"
+	case FalseTernary:
+		return "false"
+	case TrueTernary:
+		return "true"
+	default:
+		return fmt.Sprintf("unknown value, %d", int(t))
+	}
+}
+
+// Bool returns true if the value is TrueTernary, false otherwise.
+func (t Ternary) Bool() bool {
+	return t == TrueTernary
+}
+
+// Enumerations for the values of the Ternary type.
+const (
+	UnknownTernary Ternary = iota
+	FalseTernary
+	TrueTernary
+)
+
+// BoolTernary returns a true or false Ternary value for the bool provided.
+func BoolTernary(v bool) Ternary {
+	if v {
+		return TrueTernary
+	}
+	return FalseTernary
+}