Prepare radicale patch.

mastus/radicale.nix

@@ -5,7 +5,9 @@ in
 {
   services.radicale = {
     enable = true;
-    package = pkgs.radicale3;
+    package = pkgs.radicale3.overrideDerivation (_: {
+      #patches = [ ./radicale1249.patch ];
+    });
     settings = {
       server = {
         hosts = "127.0.0.1:${toString radicalePort}";

mastus/radicale1249.patch

@@ -0,0 +1,43 @@
+diff -urN radicale/app/propfind.py radicale/app/propfind.py
+--- radicale/app/propfind.py	2022-04-20 17:57:41.000000000 +0200
++++ radicale/app/propfind.py	2022-06-01 07:33:33.000000000 +0200
+@@ -350,8 +350,8 @@
+                 permission = "r"
+                 status = "read"
+             else:
+-                permission = ""
+-                status = "NO"
++                permission = "r"
++                status = "read"
+             logger.debug(
+                 "%s has %s access to %s",
+                 repr(user) if user else "anonymous user", status, target)
+@@ -362,8 +362,8 @@
+                     path: str, user: str) -> types.WSGIResponse:
+         """Manage PROPFIND request."""
+         access = Access(self._rights, user, path)
+-        if not access.check("r"):
+-            return httputils.NOT_ALLOWED
++        #if not access.check("r"):
++        #    return httputils.NOT_ALLOWED
+         try:
+             xml_content = self._read_xml_request_body(environ)
+         except RuntimeError as e:
+@@ -380,8 +380,8 @@
+             item = next(items_iter, None)
+             if not item:
+                 return httputils.NOT_FOUND
+-            if not access.check("r", item):
+-                return httputils.NOT_ALLOWED
++            #if not access.check("r", item):
++            #    return httputils.NOT_ALLOWED
+             # put item back
+             items_iter = itertools.chain([item], items_iter)
+             allowed_items = self._collect_allowed_items(items_iter, user)
+@@ -390,5 +390,6 @@
+             xml_answer = xml_propfind(base_prefix, path, xml_content,
+                                       allowed_items, user, self._encoding)
+             if xml_answer is None:
++                logger.warning("xml_propfind returned no answer")
+                 return httputils.NOT_ALLOWED
+             return client.MULTI_STATUS, headers, self._xml_response(xml_answer)