Check collection properties

radicale/__init__.py

@@ -621,6 +621,7 @@ class Application:
             # TODO: use this?
             # timezone = props.get("C:calendar-timezone")
             try:
+                storage.check_and_sanitize_props(props)
                 self.Collection.create_collection(path, props=props)
             except ValueError as e:
                 self.logger.warning(
@@ -647,6 +648,7 @@ class Application:
                 return WEBDAV_PRECONDITION_FAILED
             props = xmlutils.props_from_request(xml_content)
             try:
+                storage.check_and_sanitize_props(props)
                 self.Collection.create_collection(path, props=props)
             except ValueError as e:
                 self.logger.warning(
@@ -764,8 +766,13 @@ class Application:
                 return WEBDAV_PRECONDITION_FAILED
             headers = {"DAV": DAV_HEADERS,
                        "Content-Type": "text/xml; charset=%s" % self.encoding}
+            try:
                 xml_answer = xmlutils.proppatch(base_prefix, path, xml_content,
                                                 item)
+            except ValueError as e:
+                self.logger.warning(
+                    "Bad PROPPATCH request on %r: %s", path, e, exc_info=True)
+                return BAD_REQUEST
             return (client.MULTI_STATUS, headers,
                     self._write_xml_content(xml_answer))
 
@@ -841,18 +848,23 @@ class Application:
                 return BAD_REQUEST
 
             if write_whole_collection:
+                props = {"tag": tag} if tag else {}
                 try:
+                    storage.check_and_sanitize_props(props)
                     new_item = self.Collection.create_collection(
-                        path, items, {"tag": tag} if tag else None)
+                        path, items, props)
                 except ValueError as e:
                     self.logger.warning(
                         "Bad PUT request on %r: %s", path, e, exc_info=True)
                     return BAD_REQUEST
             else:
-                if tag and not parent_item.get_meta("tag"):
-                    parent_item.set_meta({"tag": tag})
                 href = posixpath.basename(path.strip("/"))
                 try:
+                    if tag and not parent_item.get_meta("tag"):
+                        new_props = parent_item.get_meta()
+                        new_props["tag"] = tag
+                        storage.check_and_sanitize_props(new_props)
+                        parent_item.set_meta_all(new_props)
                     new_item = parent_item.upload(href, items[0])
                 except ValueError as e:
                     self.logger.warning(

radicale/storage.py

@@ -178,6 +178,13 @@ def check_and_sanitize_item(vobject_item, is_collection=False, uid=None,
                          (vobject_item.name, repr(tag) if tag else "generic"))
 
 
+def check_and_sanitize_props(props):
+    """Check collection properties for common errors."""
+    tag = props.get("tag")
+    if tag and tag not in ("VCALENDAR", "VADDRESSBOOK"):
+        raise ValueError("Unsupported collection tag: %r" % tag)
+
+
 def random_uuid4():
     """Generate a pseudo-random UUID"""
     r = "%016x" % getrandbits(128)
@@ -589,9 +596,24 @@ class BaseCollection:
         ``props`` a dict with updates for properties. If a value is empty, the
         property must be deleted.
 
+        DEPRECATED: use ``set_meta_all`` instead
+
         """
         raise NotImplementedError
 
+    def set_meta_all(self, props):
+        """Set metadata values for collection.
+
+        ``props`` a dict with values for properties.
+
+        """
+        delta_props = self.get_meta()
+        for key in delta_props.keys():
+            if key not in props:
+                delta_props[key] = ""
+        delta_props.update(props)
+        self.set_meta(self, delta_props)
+
     @property
     def last_modified(self):
         """Get the HTTP-datetime of when the collection was modified."""
@@ -850,7 +872,7 @@ class Collection(BaseCollection):
             tmp_filesystem_path = os.path.join(tmp_dir, "collection")
             os.makedirs(tmp_filesystem_path)
             self = cls("/", folder=tmp_filesystem_path)
-            self.set_meta(props)
+            self.set_meta_all(props)
 
             if collection:
                 if props.get("tag") == "VCALENDAR":
@@ -1291,24 +1313,21 @@ class Collection(BaseCollection):
     def get_meta(self, key=None):
         # reuse cached value if the storage is read-only
         if self._writer or self._meta_cache is None:
+            try:
                 try:
                     with open(self._props_path, encoding=self.encoding) as f:
                         self._meta_cache = json.load(f)
                 except FileNotFoundError:
                     self._meta_cache = {}
+                check_and_sanitize_props(self._meta_cache)
             except ValueError as e:
-                raise RuntimeError("Failed to load properties of collect"
-                                   "ion %r: %s" % (self.path, e)) from e
+                raise RuntimeError("Failed to load properties of collection "
+                                   "%r: %s" % (self.path, e)) from e
         return self._meta_cache.get(key) if key else self._meta_cache
 
-    def set_meta(self, props):
-        new_props = self.get_meta()
-        new_props.update(props)
-        for key in tuple(new_props.keys()):
-            if not new_props[key]:
-                del new_props[key]
+    def set_meta_all(self, props):
         with self._atomic_write(self._props_path, "w") as f:
-            json.dump(new_props, f)
+            json.dump(props, f)
 
     @property
     def last_modified(self):

radicale/xmlutils.py

@@ -998,12 +998,18 @@ def proppatch(base_prefix, path, xml_request, collection):
     href.text = _href(base_prefix, path)
     response.append(href)
 
-    for short_name in props_to_remove:
-        props_to_set[short_name] = ""
-    collection.set_meta(props_to_set)
-
-    for short_name in props_to_set:
+    new_props = collection.get_meta()
+    for short_name, value in props_to_set.items():
+        new_props[short_name] = value
         _add_propstat_to(response, short_name, 200)
+    for short_name in props_to_remove:
+        try:
+            del new_props[short_name]
+        except KeyError:
+            pass
+        _add_propstat_to(response, short_name, 200)
+    storage.check_and_sanitize_props(new_props)
+    collection.set_meta_all(new_props)
 
     return multistatus