implement url translation for legacy urls

internal/http/services/owncloud/ocdav/ocdav.go

@@ -153,7 +153,7 @@ func (s *svc) Close() error {
 }
 
 func (s *svc) Unprotected() []string {
-	return []string{"/status.php", "/remote.php/dav/public-files/"}
+	return []string{"/status.php", "/remote.php/dav/public-files/", "/apps/files/", "/index.php/f/", "/index.php/s/"}
 }
 
 func (s *svc) Handler() http.Handler {
@@ -187,7 +187,21 @@ func (s *svc) Handler() http.Handler {
 
 			// yet, add it to baseURI
 			base = path.Join(base, "remote.php")
-
+		case "apps":
+			head, r.URL.Path = router.ShiftPath(r.URL.Path)
+			switch head {
+			case "files":
+				s.handleLegacyPath(w, r)
+				return
+			}
+		case "index.php":
+			head, r.URL.Path = router.ShiftPath(r.URL.Path)
+			if head == "s" {
+				token := r.URL.Path
+				url := s.c.PublicURL + path.Join("#", head, token)
+				http.Redirect(w, r, url, http.StatusMovedPermanently)
+				return
+			}
 		}
 		switch head {
 		// the old `/webdav` endpoint uses remote.php/webdav/$path

internal/http/services/owncloud/ocdav/redirect.go

@@ -0,0 +1,14 @@
+package ocdav
+
+import (
+	"net/http"
+	"net/url"
+	"path"
+)
+
+func (s *svc) handleLegacyPath(w http.ResponseWriter, r *http.Request) {
+	query := r.URL.Query()
+	dir := query.Get("dir")
+	url := s.c.PublicURL + path.Join("#", "/files/list/all", url.PathEscape(dir))
+	http.Redirect(w, r, url, http.StatusMovedPermanently)
+}