mirror of
https://github.com/opencloud-eu/opencloud.git
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ff6674f97b
reva tries to avoid copying proto messages now. This changed some calls to take pointers now (mainly e.g. FormatResourceId())
107 lines
2.8 KiB
Go
107 lines
2.8 KiB
Go
package requests
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import (
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"fmt"
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"net/http"
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"net/url"
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"path/filepath"
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"strconv"
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providerv1beta1 "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
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"github.com/cs3org/reva/v2/pkg/storagespace"
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"github.com/cs3org/reva/v2/pkg/utils"
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"github.com/go-chi/chi/v5"
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"github.com/owncloud/ocis/v2/services/webdav/pkg/constants"
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)
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const (
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// DefaultWidth defines the default width of a thumbnail
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DefaultWidth = 32
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// DefaultHeight defines the default height of a thumbnail
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DefaultHeight = 32
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)
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// ThumbnailRequest combines all parameters provided when requesting a thumbnail
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type ThumbnailRequest struct {
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// The file path of the source file
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Filepath string
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// The file name of the source file including the extension
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Filename string
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// The file extension
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Extension string
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// The requested width of the thumbnail
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Width int32
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// The requested height of the thumbnail
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Height int32
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// In case of a public share the public link token.
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PublicLinkToken string
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// Indicates which image processor to use
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Processor string
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// The Identifier from the requested URL
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Identifier string
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}
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func addMissingStorageID(id string) string {
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rid := &providerv1beta1.ResourceId{}
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rid.StorageId, rid.SpaceId, rid.OpaqueId, _ = storagespace.SplitID(id)
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if rid.StorageId == "" && rid.SpaceId == utils.ShareStorageSpaceID {
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rid.StorageId = utils.ShareStorageProviderID
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}
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return storagespace.FormatResourceID(rid)
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}
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// ParseThumbnailRequest extracts all required parameters from a http request.
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func ParseThumbnailRequest(r *http.Request) (*ThumbnailRequest, error) {
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ctx := r.Context()
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fp := ctx.Value(constants.ContextKeyPath).(string)
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id := ""
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v := ctx.Value(constants.ContextKeyID)
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if v != nil {
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id = addMissingStorageID(v.(string))
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}
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q := r.URL.Query()
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width, height, err := parseDimensions(q)
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if err != nil {
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return nil, err
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}
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return &ThumbnailRequest{
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Filepath: fp,
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Filename: filepath.Base(fp),
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Extension: filepath.Ext(fp),
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Width: int32(width),
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Height: int32(height),
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Processor: q.Get("processor"),
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PublicLinkToken: chi.URLParam(r, "token"),
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Identifier: id,
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}, nil
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}
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func parseDimensions(q url.Values) (int64, int64, error) {
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width, err := parseDimension(q.Get("x"), "width", DefaultWidth)
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if err != nil {
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return 0, 0, err
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}
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height, err := parseDimension(q.Get("y"), "height", DefaultHeight)
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if err != nil {
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return 0, 0, err
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}
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return width, height, nil
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}
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func parseDimension(d, name string, defaultValue int64) (int64, error) {
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if d == "" {
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return defaultValue, nil
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}
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result, err := strconv.ParseInt(d, 10, 32)
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if err != nil || result < 1 {
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// The error message doesn't fit but for OC10 API compatibility reasons we have to set this.
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return 0, fmt.Errorf("Cannot set %s of 0 or smaller!", name)
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}
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return result, nil
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}
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