148 lines
4.1 KiB
Go
148 lines
4.1 KiB
Go
package webdav
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// FIXME need to fix directory listings reading each file - make an
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// override for getcontenttype property?
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import (
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"net/http"
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"os"
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"github.com/ncw/rclone/cmd"
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"github.com/ncw/rclone/cmd/serve/httplib"
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"github.com/ncw/rclone/cmd/serve/httplib/httpflags"
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"github.com/ncw/rclone/fs"
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"github.com/ncw/rclone/fs/log"
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"github.com/ncw/rclone/vfs"
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"github.com/ncw/rclone/vfs/vfsflags"
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"github.com/spf13/cobra"
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"golang.org/x/net/context"
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"golang.org/x/net/webdav"
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)
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func init() {
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httpflags.AddFlags(Command.Flags())
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vfsflags.AddFlags(Command.Flags())
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}
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// Command definition for cobra
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var Command = &cobra.Command{
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Use: "webdav remote:path",
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Short: `Serve remote:path over webdav.`,
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Long: `
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rclone serve webdav implements a basic webdav server to serve the
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remote over HTTP via the webdav protocol. This can be viewed with a
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webdav client or you can make a remote of type webdav to read and
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write it.
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NB at the moment each directory listing reads the start of each file
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which is undesirable: see https://github.com/golang/go/issues/22577
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` + httplib.Help + vfs.Help,
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Run: func(command *cobra.Command, args []string) {
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cmd.CheckArgs(1, 1, command, args)
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f := cmd.NewFsSrc(args)
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cmd.Run(false, false, command, func() error {
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w := newWebDAV(f, &httpflags.Opt)
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w.serve()
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return nil
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})
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},
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}
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// WebDAV is a webdav.FileSystem interface
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//
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// A FileSystem implements access to a collection of named files. The elements
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// in a file path are separated by slash ('/', U+002F) characters, regardless
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// of host operating system convention.
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//
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// Each method has the same semantics as the os package's function of the same
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// name.
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//
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// Note that the os.Rename documentation says that "OS-specific restrictions
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// might apply". In particular, whether or not renaming a file or directory
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// overwriting another existing file or directory is an error is OS-dependent.
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type WebDAV struct {
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f fs.Fs
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vfs *vfs.VFS
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srv *httplib.Server
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}
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// check interface
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var _ webdav.FileSystem = (*WebDAV)(nil)
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// Make a new WebDAV to serve the remote
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func newWebDAV(f fs.Fs, opt *httplib.Options) *WebDAV {
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w := &WebDAV{
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f: f,
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vfs: vfs.New(f, &vfsflags.Opt),
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}
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handler := &webdav.Handler{
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FileSystem: w,
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LockSystem: webdav.NewMemLS(),
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Logger: w.logRequest, // FIXME
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}
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w.srv = httplib.NewServer(handler, opt)
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return w
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}
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// serve runs the http server - doesn't return
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func (w *WebDAV) serve() {
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err := w.srv.Serve()
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if err != nil {
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fs.Errorf(w.f, "Opening listener: %v", err)
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}
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fs.Logf(w.f, "WebDav Server started on %s", w.srv.URL())
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w.srv.Wait()
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}
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// logRequest is called by the webdav module on every request
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func (w *WebDAV) logRequest(r *http.Request, err error) {
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fs.Infof(r.URL.Path, "%s from %s", r.Method, r.RemoteAddr)
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}
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// Mkdir creates a directory
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func (w *WebDAV) Mkdir(ctx context.Context, name string, perm os.FileMode) (err error) {
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defer log.Trace(name, "perm=%v", perm)("err = %v", &err)
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dir, leaf, err := w.vfs.StatParent(name)
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if err != nil {
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return err
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}
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_, err = dir.Mkdir(leaf)
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return err
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}
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// OpenFile opens a file or a directory
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func (w *WebDAV) OpenFile(ctx context.Context, name string, flags int, perm os.FileMode) (file webdav.File, err error) {
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defer log.Trace(name, "flags=%v, perm=%v", flags, perm)("err = %v", &err)
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return w.vfs.OpenFile(name, flags, perm)
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}
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// RemoveAll removes a file or a directory and its contents
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func (w *WebDAV) RemoveAll(ctx context.Context, name string) (err error) {
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defer log.Trace(name, "")("err = %v", &err)
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node, err := w.vfs.Stat(name)
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if err != nil {
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return err
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}
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err = node.RemoveAll()
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if err != nil {
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return err
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}
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return nil
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}
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// Rename a file or a directory
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func (w *WebDAV) Rename(ctx context.Context, oldName, newName string) (err error) {
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defer log.Trace(oldName, "newName=%q", newName)("err = %v", &err)
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return w.vfs.Rename(oldName, newName)
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}
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// Stat returns info about the file or directory
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func (w *WebDAV) Stat(ctx context.Context, name string) (fi os.FileInfo, err error) {
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defer log.Trace(name, "")("fi=%+v, err = %v", &fi, &err)
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return w.vfs.Stat(name)
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}
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// check interface
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var _ os.FileInfo = vfs.Node(nil)
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