add config for filesystem storage

pkg/config/config.go

@@ -33,11 +33,17 @@ type Tracing struct {
 
 // Config combines all available configuration parts.
 type Config struct {
-	File    string
-	Log     Log
-	Debug   Debug
-	HTTP    HTTP
-	Tracing Tracing
+	File              string
+	Log               Log
+	Debug             Debug
+	HTTP              HTTP
+	Tracing           Tracing
+	FilesystemStorage FilesystemStorage
+}
+
+// FilesystemStorage defines the available filesystem storage configuration.
+type FilesystemStorage struct {
+	RootDirectory string
 }
 
 // New initializes a new configuration with or without defaults.

pkg/flagset/flagset.go

@@ -134,5 +134,12 @@ func ServerWithConfig(cfg *config.Config) []cli.Flag {
 			EnvVars:     []string{"THUMBNAILS_HTTP_ROOT"},
 			Destination: &cfg.HTTP.Root,
 		},
+		&cli.StringFlag{
+			Name:        "filesystemstorage-root",
+			Value:       "/tmp/ocis-thumbnails/",
+			Usage:       "Root path of the filesystem storage directory",
+			EnvVars:     []string{"THUMBNAILS_FILESYSTEMSTORAGE_ROOT"},
+			Destination: &cfg.FilesystemStorage.RootDirectory,
+		},
 	}
 }

pkg/thumbnails/imgsource/webdav.go

@@ -24,7 +24,7 @@ func (s WebDav) Get(file string, ctx SourceContext) (image.Image, error) {
 	u.Path = path.Join(u.Path, file)
 	req, err := http.NewRequest(http.MethodGet, u.String(), nil)
 	if err != nil {
-		return nil, fmt.Errorf("could not get the file %s error: %s", file, err.Error())
+		return nil, fmt.Errorf("could not get the file \"%s\" error: %s", file, err.Error())
 	}
 
 	auth := ctx.GetString(WebDavAuth)
@@ -33,7 +33,7 @@ func (s WebDav) Get(file string, ctx SourceContext) (image.Image, error) {
 	client := &http.Client{}
 	resp, err := client.Do(req)
 	if err != nil {
-		return nil, fmt.Errorf("could not get the file %s error: %s", file, err.Error())
+		return nil, fmt.Errorf("could not get the file \"%s\" error: %s", file, err.Error())
 	}
 
 	img, _, _ := image.Decode(resp.Body)

pkg/thumbnails/storage/filesystem.go

@@ -7,15 +7,16 @@ import (
 	"os"
 	"path/filepath"
 	"strconv"
+
+	"github.com/owncloud/ocis-thumbnails/pkg/config"
 )
 
-const BasePath = "/home/corby/tmp/thumbnails/fs/"
-
 type FileSystem struct {
+	cfg config.FilesystemStorage
 }
 
 func (s FileSystem) Get(key string) []byte {
-	content, err := ioutil.ReadFile(BasePath + key)
+	content, err := ioutil.ReadFile(filepath.Join(s.cfg.RootDirectory, key))
 	if err != nil {
 		return nil
 	}
@@ -24,12 +25,13 @@ func (s FileSystem) Get(key string) []byte {
 }
 
 func (s FileSystem) Set(key string, img []byte) error {
-	folder := filepath.Dir(BasePath + key)
+	path := filepath.Join(s.cfg.RootDirectory, key)
+	folder := filepath.Dir(path)
 	if err := createFolderIfNotExists(folder); err != nil {
 		return fmt.Errorf("error while creating folder %s", folder)
 	}
 
-	f, err := os.Create(BasePath + key)
+	f, err := os.Create(path)
 	if err != nil {
 		fmt.Println(err.Error())
 		return err