Add webdav using the fuse implementation

cmd/restic/cmd_webdav.go

@@ -0,0 +1,98 @@
+package main
+
+import (
+	"log"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/spf13/cobra"
+
+	"github.com/restic/restic/internal/errors"
+	"github.com/restic/restic/internal/fuse"
+	"github.com/restic/restic/internal/restic"
+	"github.com/restic/restic/internal/webdav"
+)
+
+var cmdWebDAV = &cobra.Command{
+	Use:   "webdav [flags]",
+	Short: "runs a WebDAV server for the repository",
+	Long: `
+The webdav command runs a WebDAV server for the reposiotry that you can then access via a WebDAV client.
+`,
+	DisableAutoGenTag: true,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return runWebDAV(webdavOptions, globalOptions, args)
+	},
+}
+
+// WebDAVOptions collects all options for the webdav command.
+type WebDAVOptions struct {
+	Listen string
+
+	Hosts            []string
+	Tags             restic.TagLists
+	Paths            []string
+	SnapshotTemplate string
+}
+
+var webdavOptions WebDAVOptions
+
+func init() {
+	cmdRoot.AddCommand(cmdWebDAV)
+
+	webdavFlags := cmdWebDAV.Flags()
+	webdavFlags.StringVarP(&webdavOptions.Listen, "listen", "l", "localhost:3080", "set the listen host name and `address`")
+
+	webdavFlags.StringArrayVarP(&webdavOptions.Hosts, "host", "H", nil, `only consider snapshots for this host (can be specified multiple times)`)
+	webdavFlags.Var(&webdavOptions.Tags, "tag", "only consider snapshots which include this `taglist`")
+	webdavFlags.StringArrayVar(&webdavOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path`")
+	webdavFlags.StringVar(&webdavOptions.SnapshotTemplate, "snapshot-template", time.RFC3339, "set `template` to use for snapshot dirs")
+}
+
+func runWebDAV(opts WebDAVOptions, gopts GlobalOptions, args []string) error {
+	if len(args) > 0 {
+		return errors.Fatal("this command does not accept additional arguments")
+	}
+
+	repo, err := OpenRepository(gopts)
+	if err != nil {
+		return err
+	}
+
+	lock, err := lockRepo(repo)
+	defer unlockRepo(lock)
+	if err != nil {
+		return err
+	}
+
+	err = repo.LoadIndex(gopts.ctx)
+	if err != nil {
+		return err
+	}
+
+	errorLogger := log.New(os.Stderr, "error log: ", log.Flags())
+
+	cfg := fuse.Config{
+		Hosts:            opts.Hosts,
+		Tags:             opts.Tags,
+		Paths:            opts.Paths,
+		SnapshotTemplate: opts.SnapshotTemplate,
+	}
+	root := fuse.NewRoot(repo, cfg)
+
+	h, err := webdav.NewWebDAV(gopts.ctx, root)
+	if err != nil {
+		return err
+	}
+
+	srv := &http.Server{
+		ReadTimeout:  60 * time.Second,
+		WriteTimeout: 60 * time.Second,
+		Addr:         opts.Listen,
+		Handler:      h,
+		ErrorLog:     errorLogger,
+	}
+
+	return srv.ListenAndServe()
+}