diff options
Diffstat (limited to 'synapse/handlers')
| -rw-r--r-- | synapse/handlers/_base.py | 184 | ||||
| -rw-r--r-- | synapse/handlers/message.py | 18 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 7 | ||||
| -rw-r--r-- | synapse/handlers/search.py | 17 | ||||
| -rw-r--r-- | synapse/handlers/sync.py | 7 |
5 files changed, 29 insertions, 204 deletions
diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py index ac716a8118..c904c6c500 100644 --- a/synapse/handlers/_base.py +++ b/synapse/handlers/_base.py @@ -19,7 +19,6 @@ from synapse.api.errors import LimitExceededError from synapse.api.constants import Membership, EventTypes from synapse.types import UserID, Requester -from synapse.util.logcontext import preserve_fn import logging @@ -27,23 +26,6 @@ import logging logger = logging.getLogger(__name__) -VISIBILITY_PRIORITY = ( - "world_readable", - "shared", - "invited", - "joined", -) - - -MEMBERSHIP_PRIORITY = ( - Membership.JOIN, - Membership.INVITE, - Membership.KNOCK, - Membership.LEAVE, - Membership.BAN, -) - - class BaseHandler(object): """ Common base class for the event handlers. @@ -67,172 +49,6 @@ class BaseHandler(object): self.event_builder_factory = hs.get_event_builder_factory() - @defer.inlineCallbacks - def filter_events_for_clients(self, user_tuples, events, event_id_to_state): - """ Returns dict of user_id -> list of events that user is allowed to - see. - - Args: - user_tuples (str, bool): (user id, is_peeking) for each user to be - checked. is_peeking should be true if: - * the user is not currently a member of the room, and: - * the user has not been a member of the room since the - given events - events ([synapse.events.EventBase]): list of events to filter - """ - forgotten = yield defer.gatherResults([ - preserve_fn(self.store.who_forgot_in_room)( - room_id, - ) - for room_id in frozenset(e.room_id for e in events) - ], consumeErrors=True) - - # Set of membership event_ids that have been forgotten - event_id_forgotten = frozenset( - row["event_id"] for rows in forgotten for row in rows - ) - - ignore_dict_content = yield self.store.get_global_account_data_by_type_for_users( - "m.ignored_user_list", user_ids=[user_id for user_id, _ in user_tuples] - ) - - # FIXME: This will explode if people upload something incorrect. - ignore_dict = { - user_id: frozenset( - content.get("ignored_users", {}).keys() if content else [] - ) - for user_id, content in ignore_dict_content.items() - } - - def allowed(event, user_id, is_peeking, ignore_list): - """ - Args: - event (synapse.events.EventBase): event to check - user_id (str) - is_peeking (bool) - ignore_list (list): list of users to ignore - """ - if not event.is_state() and event.sender in ignore_list: - return False - - state = event_id_to_state[event.event_id] - - # get the room_visibility at the time of the event. - visibility_event = state.get((EventTypes.RoomHistoryVisibility, ""), None) - if visibility_event: - visibility = visibility_event.content.get("history_visibility", "shared") - else: - visibility = "shared" - - if visibility not in VISIBILITY_PRIORITY: - visibility = "shared" - - # if it was world_readable, it's easy: everyone can read it - if visibility == "world_readable": - return True - - # Always allow history visibility events on boundaries. This is done - # by setting the effective visibility to the least restrictive - # of the old vs new. - if event.type == EventTypes.RoomHistoryVisibility: - prev_content = event.unsigned.get("prev_content", {}) - prev_visibility = prev_content.get("history_visibility", None) - - if prev_visibility not in VISIBILITY_PRIORITY: - prev_visibility = "shared" - - new_priority = VISIBILITY_PRIORITY.index(visibility) - old_priority = VISIBILITY_PRIORITY.index(prev_visibility) - if old_priority < new_priority: - visibility = prev_visibility - - # likewise, if the event is the user's own membership event, use - # the 'most joined' membership - membership = None - if event.type == EventTypes.Member and event.state_key == user_id: - membership = event.content.get("membership", None) - if membership not in MEMBERSHIP_PRIORITY: - membership = "leave" - - prev_content = event.unsigned.get("prev_content", {}) - prev_membership = prev_content.get("membership", None) - if prev_membership not in MEMBERSHIP_PRIORITY: - prev_membership = "leave" - - new_priority = MEMBERSHIP_PRIORITY.index(membership) - old_priority = MEMBERSHIP_PRIORITY.index(prev_membership) - if old_priority < new_priority: - membership = prev_membership - - # otherwise, get the user's membership at the time of the event. - if membership is None: - membership_event = state.get((EventTypes.Member, user_id), None) - if membership_event: - if membership_event.event_id not in event_id_forgotten: - membership = membership_event.membership - - # if the user was a member of the room at the time of the event, - # they can see it. - if membership == Membership.JOIN: - return True - - if visibility == "joined": - # we weren't a member at the time of the event, so we can't - # see this event. - return False - - elif visibility == "invited": - # user can also see the event if they were *invited* at the time - # of the event. - return membership == Membership.INVITE - - else: - # visibility is shared: user can also see the event if they have - # become a member since the event - # - # XXX: if the user has subsequently joined and then left again, - # ideally we would share history up to the point they left. But - # we don't know when they left. - return not is_peeking - - defer.returnValue({ - user_id: [ - event - for event in events - if allowed(event, user_id, is_peeking, ignore_dict.get(user_id, [])) - ] - for user_id, is_peeking in user_tuples - }) - - @defer.inlineCallbacks - def filter_events_for_client(self, user_id, events, is_peeking=False): - """ - Check which events a user is allowed to see - - Args: - user_id(str): user id to be checked - events([synapse.events.EventBase]): list of events to be checked - is_peeking(bool): should be True if: - * the user is not currently a member of the room, and: - * the user has not been a member of the room since the given - events - - Returns: - [synapse.events.EventBase] - """ - types = ( - (EventTypes.RoomHistoryVisibility, ""), - (EventTypes.Member, user_id), - ) - event_id_to_state = yield self.store.get_state_for_events( - frozenset(e.event_id for e in events), - types=types - ) - res = yield self.filter_events_for_clients( - [(user_id, is_peeking)], events, event_id_to_state - ) - defer.returnValue(res.get(user_id, [])) - def ratelimit(self, requester): time_now = self.clock.time() allowed, time_allowed = self.ratelimiter.send_message( diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index f9e2c98f3f..13154edb78 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -29,6 +29,7 @@ from synapse.util import unwrapFirstError from synapse.util.async import concurrently_execute from synapse.util.caches.snapshot_cache import SnapshotCache from synapse.util.logcontext import PreserveLoggingContext, preserve_fn +from synapse.visibility import filter_events_for_client from ._base import BaseHandler @@ -128,7 +129,8 @@ class MessageHandler(BaseHandler): "end": next_token.to_string(), }) - events = yield self.filter_events_for_client( + events = yield filter_events_for_client( + self.store, user_id, events, is_peeking=(member_event_id is None), @@ -488,8 +490,8 @@ class MessageHandler(BaseHandler): ] ).addErrback(unwrapFirstError) - messages = yield self.filter_events_for_client( - user_id, messages + messages = yield filter_events_for_client( + self.store, user_id, messages ) start_token = now_token.copy_and_replace("room_key", token[0]) @@ -624,8 +626,8 @@ class MessageHandler(BaseHandler): end_token=stream_token ) - messages = yield self.filter_events_for_client( - user_id, messages, is_peeking=is_peeking + messages = yield filter_events_for_client( + self.store, user_id, messages, is_peeking=is_peeking ) start_token = StreamToken.START.copy_and_replace("room_key", token[0]) @@ -705,8 +707,8 @@ class MessageHandler(BaseHandler): consumeErrors=True, ).addErrback(unwrapFirstError) - messages = yield self.filter_events_for_client( - user_id, messages, is_peeking=is_peeking, + messages = yield filter_events_for_client( + self.store, user_id, messages, is_peeking=is_peeking, ) start_token = now_token.copy_and_replace("room_key", token[0]) @@ -882,7 +884,7 @@ class MessageHandler(BaseHandler): action_generator = ActionGenerator(self.hs) yield action_generator.handle_push_actions_for_event( - event, context, self + event, context ) (event_stream_id, max_stream_id) = yield self.store.persist_event( diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index fdebc9c438..3d63b3c513 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -26,6 +26,7 @@ from synapse.api.errors import AuthError, StoreError, SynapseError from synapse.util import stringutils from synapse.util.async import concurrently_execute from synapse.util.caches.response_cache import ResponseCache +from synapse.visibility import filter_events_for_client from collections import OrderedDict @@ -449,10 +450,12 @@ class RoomContextHandler(BaseHandler): now_token = yield self.hs.get_event_sources().get_current_token() def filter_evts(events): - return self.filter_events_for_client( + return filter_events_for_client( + self.store, user.to_string(), events, - is_peeking=is_guest) + is_peeking=is_guest + ) event = yield self.store.get_event(event_id, get_prev_content=True, allow_none=True) diff --git a/synapse/handlers/search.py b/synapse/handlers/search.py index a937e87408..df75d70fac 100644 --- a/synapse/handlers/search.py +++ b/synapse/handlers/search.py @@ -21,6 +21,7 @@ from synapse.api.constants import Membership, EventTypes from synapse.api.filtering import Filter from synapse.api.errors import SynapseError from synapse.events.utils import serialize_event +from synapse.visibility import filter_events_for_client from unpaddedbase64 import decode_base64, encode_base64 @@ -172,8 +173,8 @@ class SearchHandler(BaseHandler): filtered_events = search_filter.filter([r["event"] for r in results]) - events = yield self.filter_events_for_client( - user.to_string(), filtered_events + events = yield filter_events_for_client( + self.store, user.to_string(), filtered_events ) events.sort(key=lambda e: -rank_map[e.event_id]) @@ -223,8 +224,8 @@ class SearchHandler(BaseHandler): r["event"] for r in results ]) - events = yield self.filter_events_for_client( - user.to_string(), filtered_events + events = yield filter_events_for_client( + self.store, user.to_string(), filtered_events ) room_events.extend(events) @@ -281,12 +282,12 @@ class SearchHandler(BaseHandler): event.room_id, event.event_id, before_limit, after_limit ) - res["events_before"] = yield self.filter_events_for_client( - user.to_string(), res["events_before"] + res["events_before"] = yield filter_events_for_client( + self.store, user.to_string(), res["events_before"] ) - res["events_after"] = yield self.filter_events_for_client( - user.to_string(), res["events_after"] + res["events_after"] = yield filter_events_for_client( + self.store, user.to_string(), res["events_after"] ) res["start"] = now_token.copy_and_replace( diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index b7dcbc6b1b..921215469f 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -22,6 +22,7 @@ from synapse.util.logcontext import LoggingContext from synapse.util.metrics import Measure from synapse.util.caches.response_cache import ResponseCache from synapse.push.clientformat import format_push_rules_for_user +from synapse.visibility import filter_events_for_client from twisted.internet import defer @@ -697,7 +698,8 @@ class SyncHandler(BaseHandler): if recents is not None: recents = sync_config.filter_collection.filter_room_timeline(recents) - recents = yield self.filter_events_for_client( + recents = yield filter_events_for_client( + self.store, sync_config.user.to_string(), recents, ) @@ -718,7 +720,8 @@ class SyncHandler(BaseHandler): loaded_recents = sync_config.filter_collection.filter_room_timeline( events ) - loaded_recents = yield self.filter_events_for_client( + loaded_recents = yield filter_events_for_client( + self.store, sync_config.user.to_string(), loaded_recents, ) |