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97 lines
2.2 KiB
97 lines
2.2 KiB
package weed_server
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import (
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"context"
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"golang.org/x/net/webdav"
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"io/fs"
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"os"
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"strings"
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)
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type wrappedFs struct {
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subFolder string
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webdav.FileSystem
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}
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// NewWrappedFs returns a webdav.FileSystem identical to fs, except it
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// provides access to a sub-folder of fs that is denominated by subFolder.
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// It transparently handles renaming paths and filenames so that the outer part of the wrapped filesystem
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// does not leak out.
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func NewWrappedFs(fs webdav.FileSystem, subFolder string) webdav.FileSystem {
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return wrappedFs{
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subFolder: subFolder,
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FileSystem: fs,
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}
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}
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func (w wrappedFs) Mkdir(ctx context.Context, name string, perm os.FileMode) error {
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name = w.subFolder + name
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return w.FileSystem.Mkdir(ctx, name, perm)
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}
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func (w wrappedFs) OpenFile(ctx context.Context, name string, flag int, perm os.FileMode) (webdav.File, error) {
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name = w.subFolder + name
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file, err := w.FileSystem.OpenFile(ctx, name, flag, perm)
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file = wrappedFile{
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File: file,
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subFolder: &w.subFolder,
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}
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return file, err
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}
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func (w wrappedFs) RemoveAll(ctx context.Context, name string) error {
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name = w.subFolder + name
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return w.FileSystem.RemoveAll(ctx, name)
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}
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func (w wrappedFs) Rename(ctx context.Context, oldName, newName string) error {
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oldName = w.subFolder + oldName
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newName = w.subFolder + newName
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return w.FileSystem.Rename(ctx, oldName, newName)
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}
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func (w wrappedFs) Stat(ctx context.Context, name string) (os.FileInfo, error) {
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name = w.subFolder + name
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info, err := w.FileSystem.Stat(ctx, name)
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info = wrappedFileInfo{
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subFolder: &w.subFolder,
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FileInfo: info,
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}
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return info, err
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}
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type wrappedFile struct {
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webdav.File
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subFolder *string
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}
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func (w wrappedFile) Readdir(count int) ([]fs.FileInfo, error) {
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infos, err := w.File.Readdir(count)
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for i, info := range infos {
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infos[i] = wrappedFileInfo{
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subFolder: w.subFolder,
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FileInfo: info,
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}
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}
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return infos, err
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}
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func (w wrappedFile) Stat() (fs.FileInfo, error) {
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info, err := w.File.Stat()
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info = wrappedFileInfo{
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subFolder: w.subFolder,
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FileInfo: info,
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}
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return info, err
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}
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type wrappedFileInfo struct {
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subFolder *string
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fs.FileInfo
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}
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func (w wrappedFileInfo) Name() string {
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name := w.FileInfo.Name()
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return strings.TrimPrefix(name, *w.subFolder)
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}
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