mirror of
https://github.com/opencloud-eu/opencloud.git
synced 2026-03-18 23:47:05 -04:00
92 lines
2.2 KiB
Go
92 lines
2.2 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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"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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// The Identifier from the requested URL
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Identifier string
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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 = 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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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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