2020-01-15 17:21:27 +00:00
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package webdav
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import (
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2020-01-21 20:19:44 +00:00
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"io"
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2020-01-21 21:43:13 +00:00
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"mime"
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2020-01-15 17:21:27 +00:00
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"net/http"
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"os"
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"path"
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"path/filepath"
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"strings"
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2020-01-17 10:30:42 +00:00
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"github.com/emersion/go-webdav/internal"
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2020-01-15 17:21:27 +00:00
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)
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type LocalFileSystem string
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func (fs LocalFileSystem) path(name string) (string, error) {
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if (filepath.Separator != '/' && strings.IndexRune(name, filepath.Separator) >= 0) || strings.Contains(name, "\x00") {
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return "", internal.HTTPErrorf(http.StatusBadRequest, "webdav: invalid character in path")
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}
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name = path.Clean(name)
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if !path.IsAbs(name) {
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return "", internal.HTTPErrorf(http.StatusBadRequest, "webdav: expected absolute path")
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2020-01-15 17:21:27 +00:00
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}
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return filepath.Join(string(fs), filepath.FromSlash(name)), nil
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}
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2020-01-22 09:41:20 +00:00
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func (fs LocalFileSystem) href(path string) (string, error) {
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rel, err := filepath.Rel(string(fs), path)
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if err != nil {
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return "", err
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}
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href := "/" + filepath.ToSlash(rel)
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return href, nil
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}
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2020-01-21 21:19:34 +00:00
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func (fs LocalFileSystem) Open(name string) (io.ReadCloser, error) {
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2020-01-15 17:21:27 +00:00
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p, err := fs.path(name)
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if err != nil {
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return nil, err
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}
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return os.Open(p)
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}
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2020-01-21 21:36:42 +00:00
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func fileInfoFromOS(href string, fi os.FileInfo) *FileInfo {
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return &FileInfo{
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Href: href,
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Size: fi.Size(),
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ModTime: fi.ModTime(),
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IsDir: fi.IsDir(),
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// TODO: fallback to http.DetectContentType?
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MIMEType: mime.TypeByExtension(path.Ext(href)),
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}
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}
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func (fs LocalFileSystem) Stat(name string) (*FileInfo, error) {
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2020-01-21 18:55:02 +00:00
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p, err := fs.path(name)
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if err != nil {
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return nil, err
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}
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fi, err := os.Stat(p)
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if err != nil {
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return nil, err
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}
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return fileInfoFromOS(name, fi), nil
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2020-01-21 18:55:02 +00:00
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}
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2020-01-22 09:41:20 +00:00
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func (fs LocalFileSystem) Readdir(name string, recursive bool) ([]FileInfo, error) {
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2020-01-21 18:59:09 +00:00
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p, err := fs.path(name)
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if err != nil {
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return nil, err
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}
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2020-01-21 21:36:42 +00:00
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2020-01-22 09:41:20 +00:00
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var l []FileInfo
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err = filepath.Walk(p, func(p string, fi os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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href, err := fs.href(p)
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if err != nil {
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return err
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}
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l = append(l, *fileInfoFromOS(href, fi))
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if !recursive && fi.IsDir() {
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return filepath.SkipDir
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}
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return nil
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})
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return l, err
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2020-01-21 18:59:09 +00:00
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}
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2020-01-21 20:19:44 +00:00
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func (fs LocalFileSystem) Create(name string) (io.WriteCloser, error) {
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p, err := fs.path(name)
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if err != nil {
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return nil, err
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}
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return os.Create(p)
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}
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2020-01-21 20:46:01 +00:00
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func (fs LocalFileSystem) RemoveAll(name string) error {
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p, err := fs.path(name)
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if err != nil {
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return err
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}
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2020-01-21 20:49:54 +00:00
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// WebDAV semantics are that it should return a "404 Not Found" error in
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// case the resource doesn't exist. We need to Stat before RemoveAll.
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if _, err = os.Stat(p); err != nil {
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return err
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}
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2020-01-21 20:46:01 +00:00
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return os.RemoveAll(p)
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}
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2020-01-21 21:05:59 +00:00
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func (fs LocalFileSystem) Mkdir(name string) error {
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p, err := fs.path(name)
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if err != nil {
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return err
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}
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return os.Mkdir(p, 0755)
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}
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2020-01-15 17:21:27 +00:00
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var _ FileSystem = LocalFileSystem("")
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