diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/filtering.py | 109 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/filter.py | 2 | ||||
| -rw-r--r-- | synapse/storage/filtering.py | 4 |
3 files changed, 108 insertions, 7 deletions
diff --git a/synapse/api/filtering.py b/synapse/api/filtering.py index 20b6951d47..6c7a73b6d5 100644 --- a/synapse/api/filtering.py +++ b/synapse/api/filtering.py @@ -13,7 +13,8 @@ # See the License for the specific language governing permissions and # limitations under the License. -from twisted.internet import defer +from synapse.api.errors import SynapseError +from synapse.types import UserID, RoomID class Filtering(object): @@ -25,10 +26,110 @@ class Filtering(object): def get_user_filter(self, user_localpart, filter_id): return self.store.get_user_filter(user_localpart, filter_id) - def add_user_filter(self, user_localpart, definition): - # TODO(paul): implement sanity checking of the definition - return self.store.add_user_filter(user_localpart, definition) + def add_user_filter(self, user_localpart, user_filter): + self._check_valid_filter(user_filter) + return self.store.add_user_filter(user_localpart, user_filter) # TODO(paul): surely we should probably add a delete_user_filter or # replace_user_filter at some point? There's no REST API specified for # them however + + def _check_valid_filter(self, user_filter): + """Check if the provided filter is valid. + + This inspects all definitions contained within the filter. + + Args: + user_filter(dict): The filter + Raises: + SynapseError: If the filter is not valid. + """ + # NB: Filters are the complete json blobs. "Definitions" are an + # individual top-level key e.g. public_user_data. Filters are made of + # many definitions. + + top_level_definitions = [ + "public_user_data", "private_user_data", "server_data" + ] + + room_level_definitions = [ + "state", "events", "ephemeral" + ] + + for key in top_level_definitions: + if key in user_filter: + self._check_definition(user_filter[key]) + + if "room" in user_filter: + for key in room_level_definitions: + if key in user_filter["room"]: + self._check_definition(user_filter["room"][key]) + + + def _check_definition(self, definition): + """Check if the provided definition is valid. + + This inspects not only the types but also the values to make sure they + make sense. + + Args: + definition(dict): The filter definition + Raises: + SynapseError: If there was a problem with this definition. + """ + # NB: Filters are the complete json blobs. "Definitions" are an + # individual top-level key e.g. public_user_data. Filters are made of + # many definitions. + if type(definition) != dict: + raise SynapseError( + 400, "Expected JSON object, not %s" % (definition,) + ) + + # check rooms are valid room IDs + room_id_keys = ["rooms", "not_rooms"] + for key in room_id_keys: + if key in definition: + if type(definition[key]) != list: + raise SynapseError(400, "Expected %s to be a list." % key) + for room_id in definition[key]: + RoomID.from_string(room_id) + + # check senders are valid user IDs + user_id_keys = ["senders", "not_senders"] + for key in user_id_keys: + if key in definition: + if type(definition[key]) != list: + raise SynapseError(400, "Expected %s to be a list." % key) + for user_id in definition[key]: + UserID.from_string(user_id) + + # TODO: We don't limit event type values but we probably should... + # check types are valid event types + event_keys = ["types", "not_types"] + for key in event_keys: + if key in definition: + if type(definition[key]) != list: + raise SynapseError(400, "Expected %s to be a list." % key) + for event_type in definition[key]: + if not isinstance(event_type, basestring): + raise SynapseError(400, "Event type should be a string") + + try: + event_format = definition["format"] + if event_format not in ["federation", "events"]: + raise SynapseError(400, "Invalid format: %s" % (event_format,)) + except KeyError: + pass # format is optional + + try: + event_select_list = definition["select"] + for select_key in event_select_list: + if select_key not in ["event_id", "origin_server_ts", + "thread_id", "content", "content.body"]: + raise SynapseError(400, "Bad select: %s" % (select_key,)) + except KeyError: + pass # select is optional + + if ("bundle_updates" in definition and + type(definition["bundle_updates"]) != bool): + raise SynapseError(400, "Bad bundle_updates: expected bool.") diff --git a/synapse/rest/client/v2_alpha/filter.py b/synapse/rest/client/v2_alpha/filter.py index 09e44e8ae0..81a3e95155 100644 --- a/synapse/rest/client/v2_alpha/filter.py +++ b/synapse/rest/client/v2_alpha/filter.py @@ -93,7 +93,7 @@ class CreateFilterRestServlet(RestServlet): filter_id = yield self.filtering.add_user_filter( user_localpart=target_user.localpart, - definition=content, + user_filter=content, ) defer.returnValue((200, {"filter_id": str(filter_id)})) diff --git a/synapse/storage/filtering.py b/synapse/storage/filtering.py index e98eaf8032..bab68a9eef 100644 --- a/synapse/storage/filtering.py +++ b/synapse/storage/filtering.py @@ -39,8 +39,8 @@ class FilteringStore(SQLBaseStore): defer.returnValue(json.loads(def_json)) - def add_user_filter(self, user_localpart, definition): - def_json = json.dumps(definition) + def add_user_filter(self, user_localpart, user_filter): + def_json = json.dumps(user_filter) # Need an atomic transaction to SELECT the maximal ID so far then # INSERT a new one |