diff options
Diffstat (limited to 'synapse/handlers')
| -rw-r--r-- | synapse/handlers/__init__.py | 3 | ||||
| -rw-r--r-- | synapse/handlers/_base.py | 151 | ||||
| -rw-r--r-- | synapse/handlers/auth.py | 26 | ||||
| -rw-r--r-- | synapse/handlers/federation.py | 93 | ||||
| -rw-r--r-- | synapse/handlers/message.py | 16 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 620 | ||||
| -rw-r--r-- | synapse/handlers/room_member.py | 718 | ||||
| -rw-r--r-- | synapse/handlers/sync.py | 147 |
8 files changed, 951 insertions, 823 deletions
diff --git a/synapse/handlers/__init__.py b/synapse/handlers/__init__.py index 66d2c01123..f4dbf47c1d 100644 --- a/synapse/handlers/__init__.py +++ b/synapse/handlers/__init__.py @@ -17,8 +17,9 @@ from synapse.appservice.scheduler import AppServiceScheduler from synapse.appservice.api import ApplicationServiceApi from .register import RegistrationHandler from .room import ( - RoomCreationHandler, RoomMemberHandler, RoomListHandler, RoomContextHandler, + RoomCreationHandler, RoomListHandler, RoomContextHandler, ) +from .room_member import RoomMemberHandler from .message import MessageHandler from .events import EventStreamHandler, EventHandler from .federation import FederationHandler diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py index 90eabb6eb7..88d8b9ba54 100644 --- a/synapse/handlers/_base.py +++ b/synapse/handlers/_base.py @@ -37,12 +37,22 @@ VISIBILITY_PRIORITY = ( ) +MEMBERSHIP_PRIORITY = ( + Membership.JOIN, + Membership.INVITE, + Membership.KNOCK, + Membership.LEAVE, + Membership.BAN, +) + + class BaseHandler(object): """ Common base class for the event handlers. - :type store: synapse.storage.events.StateStore - :type state_handler: synapse.state.StateHandler + Attributes: + store (synapse.storage.events.StateStore): + state_handler (synapse.state.StateHandler): """ def __init__(self, hs): @@ -65,11 +75,13 @@ class BaseHandler(object): """ Returns dict of user_id -> list of events that user is allowed to see. - :param (str, bool) user_tuples: (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 + 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([ self.store.who_forgot_in_room( @@ -84,6 +96,12 @@ class BaseHandler(object): ) def allowed(event, user_id, is_peeking): + """ + Args: + event (synapse.events.EventBase): event to check + user_id (str) + is_peeking (bool) + """ state = event_id_to_state[event.event_id] # get the room_visibility at the time of the event. @@ -115,17 +133,30 @@ class BaseHandler(object): if old_priority < new_priority: visibility = prev_visibility - # get the user's membership at the time of the event. (or rather, - # just *after* the event. Which means that people can see their - # own join events, but not (currently) their own leave events.) - membership_event = state.get((EventTypes.Member, user_id), None) - if membership_event: - if membership_event.event_id in event_id_forgotten: - membership = None - else: - membership = membership_event.membership - else: - membership = None + # 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. @@ -165,13 +196,16 @@ class BaseHandler(object): """ Check which events a user is allowed to see - :param str user_id: user id to be checked - :param [synapse.events.EventBase] events: list of events to be checked - :param bool is_peeking should be True if: + 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 - :rtype [synapse.events.EventBase] + + Returns: + [synapse.events.EventBase] """ types = ( (EventTypes.RoomHistoryVisibility, ""), @@ -199,20 +233,25 @@ class BaseHandler(object): ) @defer.inlineCallbacks - def _create_new_client_event(self, builder): - latest_ret = yield self.store.get_latest_event_ids_and_hashes_in_room( - builder.room_id, - ) - - if latest_ret: - depth = max([d for _, _, d in latest_ret]) + 1 + def _create_new_client_event(self, builder, prev_event_ids=None): + if prev_event_ids: + prev_events = yield self.store.add_event_hashes(prev_event_ids) + prev_max_depth = yield self.store.get_max_depth_of_events(prev_event_ids) + depth = prev_max_depth + 1 else: - depth = 1 + latest_ret = yield self.store.get_latest_event_ids_and_hashes_in_room( + builder.room_id, + ) - prev_events = [ - (event_id, prev_hashes) - for event_id, prev_hashes, _ in latest_ret - ] + if latest_ret: + depth = max([d for _, _, d in latest_ret]) + 1 + else: + depth = 1 + + prev_events = [ + (event_id, prev_hashes) + for event_id, prev_hashes, _ in latest_ret + ] builder.prev_events = prev_events builder.depth = depth @@ -221,50 +260,6 @@ class BaseHandler(object): context = yield state_handler.compute_event_context(builder) - # If we've received an invite over federation, there are no latest - # events in the room, because we don't know enough about the graph - # fragment we received to treat it like a graph, so the above returned - # no relevant events. It may have returned some events (if we have - # joined and left the room), but not useful ones, like the invite. - if ( - not self.is_host_in_room(context.current_state) and - builder.type == EventTypes.Member - ): - prev_member_event = yield self.store.get_room_member( - builder.sender, builder.room_id - ) - - # The prev_member_event may already be in context.current_state, - # despite us not being present in the room; in particular, if - # inviting user, and all other local users, have already left. - # - # In that case, we have all the information we need, and we don't - # want to drop "context" - not least because we may need to handle - # the invite locally, which will require us to have the whole - # context (not just prev_member_event) to auth it. - # - context_event_ids = ( - e.event_id for e in context.current_state.values() - ) - - if ( - prev_member_event and - prev_member_event.event_id not in context_event_ids - ): - # The prev_member_event is missing from context, so it must - # have arrived over federation and is an outlier. We forcibly - # set our context to the invite we received over federation - builder.prev_events = ( - prev_member_event.event_id, - prev_member_event.prev_events - ) - - context = yield state_handler.compute_event_context( - builder, - old_state=(prev_member_event,), - outlier=True - ) - if builder.is_state(): builder.prev_state = yield self.store.add_event_hashes( context.prev_state_events diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index 82d458b424..d5d6faa85f 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -163,9 +163,13 @@ class AuthHandler(BaseHandler): def get_session_id(self, clientdict): """ Gets the session ID for a client given the client dictionary - :param clientdict: The dictionary sent by the client in the request - :return: The string session ID the client sent. If the client did not - send a session ID, returns None. + + Args: + clientdict: The dictionary sent by the client in the request + + Returns: + str|None: The string session ID the client sent. If the client did + not send a session ID, returns None. """ sid = None if clientdict and 'auth' in clientdict: @@ -179,9 +183,11 @@ class AuthHandler(BaseHandler): Store a key-value pair into the sessions data associated with this request. This data is stored server-side and cannot be modified by the client. - :param session_id: (string) The ID of this session as returned from check_auth - :param key: (string) The key to store the data under - :param value: (any) The data to store + + Args: + session_id (string): The ID of this session as returned from check_auth + key (string): The key to store the data under + value (any): The data to store """ sess = self._get_session_info(session_id) sess.setdefault('serverdict', {})[key] = value @@ -190,9 +196,11 @@ class AuthHandler(BaseHandler): def get_session_data(self, session_id, key, default=None): """ Retrieve data stored with set_session_data - :param session_id: (string) The ID of this session as returned from check_auth - :param key: (string) The key to store the data under - :param default: (any) Value to return if the key has not been set + + Args: + session_id (string): The ID of this session as returned from check_auth + key (string): The key to store the data under + default (any): Value to return if the key has not been set """ sess = self._get_session_info(session_id) return sess.setdefault('serverdict', {}).get(key, default) diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 267fedf114..eb02f0e000 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -102,8 +102,7 @@ class FederationHandler(BaseHandler): @log_function @defer.inlineCallbacks - def on_receive_pdu(self, origin, pdu, state=None, - auth_chain=None): + def on_receive_pdu(self, origin, pdu, state=None, auth_chain=None): """ Called by the ReplicationLayer when we have a new pdu. We need to do auth checks and put it through the StateHandler. """ @@ -174,11 +173,7 @@ class FederationHandler(BaseHandler): }) seen_ids.add(e.event_id) - yield self._handle_new_events( - origin, - event_infos, - outliers=True - ) + yield self._handle_new_events(origin, event_infos) try: context, event_stream_id, max_stream_id = yield self._handle_new_event( @@ -289,6 +284,9 @@ class FederationHandler(BaseHandler): def backfill(self, dest, room_id, limit, extremities=[]): """ Trigger a backfill request to `dest` for the given `room_id` """ + if dest == self.server_name: + raise SynapseError(400, "Can't backfill from self.") + if not extremities: extremities = yield self.store.get_oldest_events_in_room(room_id) @@ -455,7 +453,7 @@ class FederationHandler(BaseHandler): likely_domains = [ domain for domain, depth in curr_domains - if domain is not self.server_name + if domain != self.server_name ] @defer.inlineCallbacks @@ -761,6 +759,7 @@ class FederationHandler(BaseHandler): event = pdu event.internal_metadata.outlier = True + event.internal_metadata.invite_from_remote = True event.signatures.update( compute_event_signature( @@ -788,13 +787,19 @@ class FederationHandler(BaseHandler): @defer.inlineCallbacks def do_remotely_reject_invite(self, target_hosts, room_id, user_id): - origin, event = yield self._make_and_verify_event( - target_hosts, - room_id, - user_id, - "leave" - ) - signed_event = self._sign_event(event) + try: + origin, event = yield self._make_and_verify_event( + target_hosts, + room_id, + user_id, + "leave" + ) + signed_event = self._sign_event(event) + except SynapseError: + raise + except CodeMessageException as e: + logger.warn("Failed to reject invite: %s", e) + raise SynapseError(500, "Failed to reject invite") # Try the host we successfully got a response to /make_join/ # request first. @@ -804,10 +809,16 @@ class FederationHandler(BaseHandler): except ValueError: pass - yield self.replication_layer.send_leave( - target_hosts, - signed_event - ) + try: + yield self.replication_layer.send_leave( + target_hosts, + signed_event + ) + except SynapseError: + raise + except CodeMessageException as e: + logger.warn("Failed to reject invite: %s", e) + raise SynapseError(500, "Failed to reject invite") context = yield self.state_handler.compute_event_context(event) @@ -1069,9 +1080,6 @@ class FederationHandler(BaseHandler): @defer.inlineCallbacks @log_function def _handle_new_event(self, origin, event, state=None, auth_events=None): - - outlier = event.internal_metadata.is_outlier() - context = yield self._prep_event( origin, event, state=state, @@ -1087,14 +1095,12 @@ class FederationHandler(BaseHandler): event_stream_id, max_stream_id = yield self.store.persist_event( event, context=context, - is_new_state=not outlier, ) defer.returnValue((context, event_stream_id, max_stream_id)) @defer.inlineCallbacks - def _handle_new_events(self, origin, event_infos, backfilled=False, - outliers=False): + def _handle_new_events(self, origin, event_infos, backfilled=False): contexts = yield defer.gatherResults( [ self._prep_event( @@ -1113,7 +1119,6 @@ class FederationHandler(BaseHandler): for ev_info, context in itertools.izip(event_infos, contexts) ], backfilled=backfilled, - is_new_state=(not outliers and not backfilled), ) @defer.inlineCallbacks @@ -1128,11 +1133,9 @@ class FederationHandler(BaseHandler): """ events_to_context = {} for e in itertools.chain(auth_events, state): - ctx = yield self.state_handler.compute_event_context( - e, outlier=True, - ) - events_to_context[e.event_id] = ctx e.internal_metadata.outlier = True + ctx = yield self.state_handler.compute_event_context(e) + events_to_context[e.event_id] = ctx event_map = { e.event_id: e @@ -1176,16 +1179,14 @@ class FederationHandler(BaseHandler): (e, events_to_context[e.event_id]) for e in itertools.chain(auth_events, state) ], - is_new_state=False, ) new_event_context = yield self.state_handler.compute_event_context( - event, old_state=state, outlier=False, + event, old_state=state ) event_stream_id, max_stream_id = yield self.store.persist_event( event, new_event_context, - is_new_state=True, current_state=state, ) @@ -1193,10 +1194,9 @@ class FederationHandler(BaseHandler): @defer.inlineCallbacks def _prep_event(self, origin, event, state=None, auth_events=None): - outlier = event.internal_metadata.is_outlier() context = yield self.state_handler.compute_event_context( - event, old_state=state, outlier=outlier, + event, old_state=state, ) if not auth_events: @@ -1718,13 +1718,15 @@ class FederationHandler(BaseHandler): def _check_signature(self, event, auth_events): """ Checks that the signature in the event is consistent with its invite. - :param event (Event): The m.room.member event to check - :param auth_events (dict<(event type, state_key), event>) - :raises - AuthError if signature didn't match any keys, or key has been + Args: + event (Event): The m.room.member event to check + auth_events (dict<(event type, state_key), event>): + + Raises: + AuthError: if signature didn't match any keys, or key has been revoked, - SynapseError if a transient error meant a key couldn't be checked + SynapseError: if a transient error meant a key couldn't be checked for revocation. """ signed = event.content["third_party_invite"]["signed"] @@ -1766,12 +1768,13 @@ class FederationHandler(BaseHandler): """ Checks whether public_key has been revoked. - :param public_key (str): base-64 encoded public key. - :param url (str): Key revocation URL. + Args: + public_key (str): base-64 encoded public key. + url (str): Key revocation URL. - :raises - AuthError if they key has been revoked. - SynapseError if a transient error meant a key couldn't be checked + Raises: + AuthError: if they key has been revoked. + SynapseError: if a transient error meant a key couldn't be checked for revocation. """ try: diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 5c50c611ba..10608c0dd9 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -21,6 +21,7 @@ from synapse.streams.config import PaginationConfig from synapse.events.utils import serialize_event from synapse.events.validator import EventValidator from synapse.util import unwrapFirstError +from synapse.util.async import concurrently_execute from synapse.util.caches.snapshot_cache import SnapshotCache from synapse.types import UserID, RoomStreamToken, StreamToken @@ -175,7 +176,7 @@ class MessageHandler(BaseHandler): defer.returnValue(chunk) @defer.inlineCallbacks - def create_event(self, event_dict, token_id=None, txn_id=None): + def create_event(self, event_dict, token_id=None, txn_id=None, prev_event_ids=None): """ Given a dict from a client, create a new event. @@ -186,6 +187,9 @@ class MessageHandler(BaseHandler): Args: event_dict (dict): An entire event + token_id (str) + txn_id (str) + prev_event_ids (list): The prev event ids to use when creating the event Returns: Tuple of created event (FrozenEvent), Context @@ -224,6 +228,7 @@ class MessageHandler(BaseHandler): event, context = yield self._create_new_client_event( builder=builder, + prev_event_ids=prev_event_ids, ) defer.returnValue((event, context)) @@ -556,14 +561,7 @@ class MessageHandler(BaseHandler): except: logger.exception("Failed to get snapshot") - # Only do N rooms at once - n = 5 - d_list = [handle_room(e) for e in room_list] - for i in range(0, len(d_list), n): - yield defer.gatherResults( - d_list[i:i + n], - consumeErrors=True - ).addErrback(unwrapFirstError) + yield concurrently_execute(handle_room, room_list, 10) account_data_events = [] for account_data_type, content in account_data.items(): diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 71f7ab3d22..3e1d9282d7 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -18,20 +18,17 @@ from twisted.internet import defer from ._base import BaseHandler -from synapse.types import UserID, RoomAlias, RoomID, RoomStreamToken, Requester +from synapse.types import UserID, RoomAlias, RoomID, RoomStreamToken from synapse.api.constants import ( - EventTypes, Membership, JoinRules, RoomCreationPreset, + EventTypes, JoinRules, RoomCreationPreset, ) -from synapse.api.errors import AuthError, StoreError, SynapseError, Codes -from synapse.util import stringutils, unwrapFirstError +from synapse.api.errors import AuthError, StoreError, SynapseError +from synapse.util import stringutils +from synapse.util.async import concurrently_execute from synapse.util.logcontext import preserve_context_over_fn from synapse.util.caches.response_cache import ResponseCache -from signedjson.sign import verify_signed_json -from signedjson.key import decode_verify_key_bytes - from collections import OrderedDict -from unpaddedbase64 import decode_base64 import logging import math @@ -357,599 +354,6 @@ class RoomCreationHandler(BaseHandler): ) -class RoomMemberHandler(BaseHandler): - # TODO(paul): This handler currently contains a messy conflation of - # low-level API that works on UserID objects and so on, and REST-level - # API that takes ID strings and returns pagination chunks. These concerns - # ought to be separated out a lot better. - - def __init__(self, hs): - super(RoomMemberHandler, self).__init__(hs) - - self.clock = hs.get_clock() - - self.distributor = hs.get_distributor() - self.distributor.declare("user_joined_room") - self.distributor.declare("user_left_room") - - @defer.inlineCallbacks - def get_room_members(self, room_id): - users = yield self.store.get_users_in_room(room_id) - - defer.returnValue([UserID.from_string(u) for u in users]) - - @defer.inlineCallbacks - def fetch_room_distributions_into(self, room_id, localusers=None, - remotedomains=None, ignore_user=None): - """Fetch the distribution of a room, adding elements to either - 'localusers' or 'remotedomains', which should be a set() if supplied. - If ignore_user is set, ignore that user. - - This function returns nothing; its result is performed by the - side-effect on the two passed sets. This allows easy accumulation of - member lists of multiple rooms at once if required. - """ - members = yield self.get_room_members(room_id) - for member in members: - if ignore_user is not None and member == ignore_user: - continue - - if self.hs.is_mine(member): - if localusers is not None: - localusers.add(member) - else: - if remotedomains is not None: - remotedomains.add(member.domain) - - @defer.inlineCallbacks - def update_membership( - self, - requester, - target, - room_id, - action, - txn_id=None, - remote_room_hosts=None, - third_party_signed=None, - ratelimit=True, - ): - effective_membership_state = action - if action in ["kick", "unban"]: - effective_membership_state = "leave" - - if third_party_signed is not None: - replication = self.hs.get_replication_layer() - yield replication.exchange_third_party_invite( - third_party_signed["sender"], - target.to_string(), - room_id, - third_party_signed, - ) - - msg_handler = self.hs.get_handlers().message_handler - - content = {"membership": effective_membership_state} - if requester.is_guest: - content["kind"] = "guest" - - event, context = yield msg_handler.create_event( - { - "type": EventTypes.Member, - "content": content, - "room_id": room_id, - "sender": requester.user.to_string(), - "state_key": target.to_string(), - - # For backwards compatibility: - "membership": effective_membership_state, - }, - token_id=requester.access_token_id, - txn_id=txn_id, - ) - - old_state = context.current_state.get((EventTypes.Member, event.state_key)) - old_membership = old_state.content.get("membership") if old_state else None - if action == "unban" and old_membership != "ban": - raise SynapseError( - 403, - "Cannot unban user who was not banned (membership=%s)" % old_membership, - errcode=Codes.BAD_STATE - ) - if old_membership == "ban" and action != "unban": - raise SynapseError( - 403, - "Cannot %s user who was is banned" % (action,), - errcode=Codes.BAD_STATE - ) - - member_handler = self.hs.get_handlers().room_member_handler - yield member_handler.send_membership_event( - requester, - event, - context, - ratelimit=ratelimit, - remote_room_hosts=remote_room_hosts, - ) - - @defer.inlineCallbacks - def send_membership_event( - self, - requester, - event, - context, - remote_room_hosts=None, - ratelimit=True, - ): - """ - Change the membership status of a user in a room. - - Args: - requester (Requester): The local user who requested the membership - event. If None, certain checks, like whether this homeserver can - act as the sender, will be skipped. - event (SynapseEvent): The membership event. - context: The context of the event. - is_guest (bool): Whether the sender is a guest. - room_hosts ([str]): Homeservers which are likely to already be in - the room, and could be danced with in order to join this - homeserver for the first time. - ratelimit (bool): Whether to rate limit this request. - Raises: - SynapseError if there was a problem changing the membership. - """ - remote_room_hosts = remote_room_hosts or [] - - target_user = UserID.from_string(event.state_key) - room_id = event.room_id - - if requester is not None: - sender = UserID.from_string(event.sender) - assert sender == requester.user, ( - "Sender (%s) must be same as requester (%s)" % - (sender, requester.user) - ) - assert self.hs.is_mine(sender), "Sender must be our own: %s" % (sender,) - else: - requester = Requester(target_user, None, False) - - message_handler = self.hs.get_handlers().message_handler - prev_event = message_handler.deduplicate_state_event(event, context) - if prev_event is not None: - return - - action = "send" - - if event.membership == Membership.JOIN: - if requester.is_guest and not self._can_guest_join(context.current_state): - # This should be an auth check, but guests are a local concept, - # so don't really fit into the general auth process. - raise AuthError(403, "Guest access not allowed") - do_remote_join_dance, remote_room_hosts = self._should_do_dance( - context, - (self.get_inviter(event.state_key, context.current_state)), - remote_room_hosts, - ) - if do_remote_join_dance: - action = "remote_join" - elif event.membership == Membership.LEAVE: - is_host_in_room = self.is_host_in_room(context.current_state) - - if not is_host_in_room: - # perhaps we've been invited - inviter = self.get_inviter(target_user.to_string(), context.current_state) - if not inviter: - raise SynapseError(404, "Not a known room") - - if self.hs.is_mine(inviter): - # the inviter was on our server, but has now left. Carry on - # with the normal rejection codepath. - # - # This is a bit of a hack, because the room might still be - # active on other servers. - pass - else: - # send the rejection to the inviter's HS. - remote_room_hosts = remote_room_hosts + [inviter.domain] - action = "remote_reject" - - federation_handler = self.hs.get_handlers().federation_handler - - if action == "remote_join": - if len(remote_room_hosts) == 0: - raise SynapseError(404, "No known servers") - - # We don't do an auth check if we are doing an invite - # join dance for now, since we're kinda implicitly checking - # that we are allowed to join when we decide whether or not we - # need to do the invite/join dance. - yield federation_handler.do_invite_join( - remote_room_hosts, - event.room_id, - event.user_id, - event.content, - ) - elif action == "remote_reject": - yield federation_handler.do_remotely_reject_invite( - remote_room_hosts, - room_id, - event.user_id - ) - else: - yield self.handle_new_client_event( - requester, - event, - context, - extra_users=[target_user], - ratelimit=ratelimit, - ) - - prev_member_event = context.current_state.get( - (EventTypes.Member, target_user.to_string()), - None - ) - - if event.membership == Membership.JOIN: - if not prev_member_event or prev_member_event.membership != Membership.JOIN: - # Only fire user_joined_room if the user has acutally joined the - # room. Don't bother if the user is just changing their profile - # info. - yield user_joined_room(self.distributor, target_user, room_id) - elif event.membership == Membership.LEAVE: - if prev_member_event and prev_member_event.membership == Membership.JOIN: - user_left_room(self.distributor, target_user, room_id) - - def _can_guest_join(self, current_state): - """ - Returns whether a guest can join a room based on its current state. - """ - guest_access = current_state.get((EventTypes.GuestAccess, ""), None) - return ( - guest_access - and guest_access.content - and "guest_access" in guest_access.content - and guest_access.content["guest_access"] == "can_join" - ) - - def _should_do_dance(self, context, inviter, room_hosts=None): - # TODO: Shouldn't this be remote_room_host? - room_hosts = room_hosts or [] - - is_host_in_room = self.is_host_in_room(context.current_state) - if is_host_in_room: - return False, room_hosts - - if inviter and not self.hs.is_mine(inviter): - room_hosts.append(inviter.domain) - - return True, room_hosts - - @defer.inlineCallbacks - def lookup_room_alias(self, room_alias): - """ - Get the room ID associated with a room alias. - - Args: - room_alias (RoomAlias): The alias to look up. - Returns: - A tuple of: - The room ID as a RoomID object. - Hosts likely to be participating in the room ([str]). - Raises: - SynapseError if room alias could not be found. - """ - directory_handler = self.hs.get_handlers().directory_handler - mapping = yield directory_handler.get_association(room_alias) - - if not mapping: - raise SynapseError(404, "No such room alias") - - room_id = mapping["room_id"] - servers = mapping["servers"] - - defer.returnValue((RoomID.from_string(room_id), servers)) - - def get_inviter(self, user_id, current_state): - prev_state = current_state.get((EventTypes.Member, user_id)) - if prev_state and prev_state.membership == Membership.INVITE: - return UserID.from_string(prev_state.user_id) - return None - - @defer.inlineCallbacks - def get_joined_rooms_for_user(self, user): - """Returns a list of roomids that the user has any of the given - membership states in.""" - - rooms = yield self.store.get_rooms_for_user( - user.to_string(), - ) - - # For some reason the list of events contains duplicates - # TODO(paul): work out why because I really don't think it should - room_ids = set(r.room_id for r in rooms) - - defer.returnValue(room_ids) - - @defer.inlineCallbacks - def do_3pid_invite( - self, - room_id, - inviter, - medium, - address, - id_server, - requester, - txn_id - ): - invitee = yield self._lookup_3pid( - id_server, medium, address - ) - - if invitee: - handler = self.hs.get_handlers().room_member_handler - yield handler.update_membership( - requester, - UserID.from_string(invitee), - room_id, - "invite", - txn_id=txn_id, - ) - else: - yield self._make_and_store_3pid_invite( - requester, - id_server, - medium, - address, - room_id, - inviter, - txn_id=txn_id - ) - - @defer.inlineCallbacks - def _lookup_3pid(self, id_server, medium, address): - """Looks up a 3pid in the passed identity server. - - Args: - id_server (str): The server name (including port, if required) - of the identity server to use. - medium (str): The type of the third party identifier (e.g. "email"). - address (str): The third party identifier (e.g. "foo@example.com"). - - Returns: - (str) the matrix ID of the 3pid, or None if it is not recognized. - """ - try: - data = yield self.hs.get_simple_http_client().get_json( - "%s%s/_matrix/identity/api/v1/lookup" % (id_server_scheme, id_server,), - { - "medium": medium, - "address": address, - } - ) - - if "mxid" in data: - if "signatures" not in data: - raise AuthError(401, "No signatures on 3pid binding") - self.verify_any_signature(data, id_server) - defer.returnValue(data["mxid"]) - - except IOError as e: - logger.warn("Error from identity server lookup: %s" % (e,)) - defer.returnValue(None) - - @defer.inlineCallbacks - def verify_any_signature(self, data, server_hostname): - if server_hostname not in data["signatures"]: - raise AuthError(401, "No signature from server %s" % (server_hostname,)) - for key_name, signature in data["signatures"][server_hostname].items(): - key_data = yield self.hs.get_simple_http_client().get_json( - "%s%s/_matrix/identity/api/v1/pubkey/%s" % - (id_server_scheme, server_hostname, key_name,), - ) - if "public_key" not in key_data: - raise AuthError(401, "No public key named %s from %s" % - (key_name, server_hostname,)) - verify_signed_json( - data, - server_hostname, - decode_verify_key_bytes(key_name, decode_base64(key_data["public_key"])) - ) - return - - @defer.inlineCallbacks - def _make_and_store_3pid_invite( - self, - requester, - id_server, - medium, - address, - room_id, - user, - txn_id - ): - room_state = yield self.hs.get_state_handler().get_current_state(room_id) - - inviter_display_name = "" - inviter_avatar_url = "" - member_event = room_state.get((EventTypes.Member, user.to_string())) - if member_event: - inviter_display_name = member_event.content.get("displayname", "") - inviter_avatar_url = member_event.content.get("avatar_url", "") - - canonical_room_alias = "" - canonical_alias_event = room_state.get((EventTypes.CanonicalAlias, "")) - if canonical_alias_event: - canonical_room_alias = canonical_alias_event.content.get("alias", "") - - room_name = "" - room_name_event = room_state.get((EventTypes.Name, "")) - if room_name_event: - room_name = room_name_event.content.get("name", "") - - room_join_rules = "" - join_rules_event = room_state.get((EventTypes.JoinRules, "")) - if join_rules_event: - room_join_rules = join_rules_event.content.get("join_rule", "") - - room_avatar_url = "" - room_avatar_event = room_state.get((EventTypes.RoomAvatar, "")) - if room_avatar_event: - room_avatar_url = room_avatar_event.content.get("url", "") - - token, public_keys, fallback_public_key, display_name = ( - yield self._ask_id_server_for_third_party_invite( - id_server=id_server, - medium=medium, - address=address, - room_id=room_id, - inviter_user_id=user.to_string(), - room_alias=canonical_room_alias, - room_avatar_url=room_avatar_url, - room_join_rules=room_join_rules, - room_name=room_name, - inviter_display_name=inviter_display_name, - inviter_avatar_url=inviter_avatar_url - ) - ) - - msg_handler = self.hs.get_handlers().message_handler - yield msg_handler.create_and_send_nonmember_event( - requester, - { - "type": EventTypes.ThirdPartyInvite, - "content": { - "display_name": display_name, - "public_keys": public_keys, - - # For backwards compatibility: - "key_validity_url": fallback_public_key["key_validity_url"], - "public_key": fallback_public_key["public_key"], - }, - "room_id": room_id, - "sender": user.to_string(), - "state_key": token, - }, - txn_id=txn_id, - ) - - @defer.inlineCallbacks - def _ask_id_server_for_third_party_invite( - self, - id_server, - medium, - address, - room_id, - inviter_user_id, - room_alias, - room_avatar_url, - room_join_rules, - room_name, - inviter_display_name, - inviter_avatar_url - ): - """ - Asks an identity server for a third party invite. - - :param id_server (str): hostname + optional port for the identity server. - :param medium (str): The literal string "email". - :param address (str): The third party address being invited. - :param room_id (str): The ID of the room to which the user is invited. - :param inviter_user_id (str): The user ID of the inviter. - :param room_alias (str): An alias for the room, for cosmetic - notifications. - :param room_avatar_url (str): The URL of the room's avatar, for cosmetic - notifications. - :param room_join_rules (str): The join rules of the email - (e.g. "public"). - :param room_name (str): The m.room.name of the room. - :param inviter_display_name (str): The current display name of the - inviter. - :param inviter_avatar_url (str): The URL of the inviter's avatar. - - :return: A deferred tuple containing: - token (str): The token which must be signed to prove authenticity. - public_keys ([{"public_key": str, "key_validity_url": str}]): - public_key is a base64-encoded ed25519 public key. - fallback_public_key: One element from public_keys. - display_name (str): A user-friendly name to represent the invited - user. - """ - - is_url = "%s%s/_matrix/identity/api/v1/store-invite" % ( - id_server_scheme, id_server, - ) - - invite_config = { - "medium": medium, - "address": address, - "room_id": room_id, - "room_alias": room_alias, - "room_avatar_url": room_avatar_url, - "room_join_rules": room_join_rules, - "room_name": room_name, - "sender": inviter_user_id, - "sender_display_name": inviter_display_name, - "sender_avatar_url": inviter_avatar_url, - } - - if self.hs.config.invite_3pid_guest: - registration_handler = self.hs.get_handlers().registration_handler - guest_access_token = yield registration_handler.guest_access_token_for( - medium=medium, - address=address, - inviter_user_id=inviter_user_id, - ) - - guest_user_info = yield self.hs.get_auth().get_user_by_access_token( - guest_access_token - ) - - invite_config.update({ - "guest_access_token": guest_access_token, - "guest_user_id": guest_user_info["user"].to_string(), - }) - - data = yield self.hs.get_simple_http_client().post_urlencoded_get_json( - is_url, - invite_config - ) - # TODO: Check for success - token = data["token"] - public_keys = data.get("public_keys", []) - if "public_key" in data: - fallback_public_key = { - "public_key": data["public_key"], - "key_validity_url": "%s%s/_matrix/identity/api/v1/pubkey/isvalid" % ( - id_server_scheme, id_server, - ), - } - else: - fallback_public_key = public_keys[0] - - if not public_keys: - public_keys.append(fallback_public_key) - display_name = data["display_name"] - defer.returnValue((token, public_keys, fallback_public_key, display_name)) - - @defer.inlineCallbacks - def forget(self, user, room_id): - user_id = user.to_string() - - member = yield self.state_handler.get_current_state( - room_id=room_id, - event_type=EventTypes.Member, - state_key=user_id - ) - membership = member.membership if member else None - - if membership is not None and membership != Membership.LEAVE: - raise SynapseError(400, "User %s in room %s" % ( - user_id, room_id - )) - - if membership: - yield self.store.forget(user_id, room_id) - - class RoomListHandler(BaseHandler): def __init__(self, hs): super(RoomListHandler, self).__init__(hs) @@ -965,6 +369,8 @@ class RoomListHandler(BaseHandler): def _get_public_room_list(self): room_ids = yield self.store.get_public_room_ids() + results = [] + @defer.inlineCallbacks def handle_room(room_id): aliases = yield self.store.get_aliases_for_room(room_id) @@ -1025,18 +431,12 @@ class RoomListHandler(BaseHandler): joined_users = yield self.store.get_users_in_room(room_id) result["num_joined_members"] = len(joined_users) - defer.returnValue(result) + results.append(result) - result = [] - for chunk in (room_ids[i:i + 10] for i in xrange(0, len(room_ids), 10)): - chunk_result = yield defer.gatherResults([ - handle_room(room_id) - for room_id in chunk - ], consumeErrors=True).addErrback(unwrapFirstError) - result.extend(v for v in chunk_result if v) + yield concurrently_execute(handle_room, room_ids, 10) # FIXME (erikj): START is no longer a valid value - defer.returnValue({"start": "START", "end": "END", "chunk": result}) + defer.returnValue({"start": "START", "end": "END", "chunk": results}) class RoomContextHandler(BaseHandler): diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py new file mode 100644 index 0000000000..8c41cb6f3c --- /dev/null +++ b/synapse/handlers/room_member.py @@ -0,0 +1,718 @@ +# -*- coding: utf-8 -*- +# Copyright 2016 OpenMarket Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +from twisted.internet import defer + +from ._base import BaseHandler + +from synapse.types import UserID, RoomID, Requester +from synapse.api.constants import ( + EventTypes, Membership, +) +from synapse.api.errors import AuthError, SynapseError, Codes +from synapse.util.logcontext import preserve_context_over_fn + +from signedjson.sign import verify_signed_json +from signedjson.key import decode_verify_key_bytes + +from unpaddedbase64 import decode_base64 + +import logging + +logger = logging.getLogger(__name__) + +id_server_scheme = "https://" + + +def user_left_room(distributor, user, room_id): + return preserve_context_over_fn( + distributor.fire, + "user_left_room", user=user, room_id=room_id + ) + + +def user_joined_room(distributor, user, room_id): + return preserve_context_over_fn( + distributor.fire, + "user_joined_room", user=user, room_id=room_id + ) + + +class RoomMemberHandler(BaseHandler): + # TODO(paul): This handler currently contains a messy conflation of + # low-level API that works on UserID objects and so on, and REST-level + # API that takes ID strings and returns pagination chunks. These concerns + # ought to be separated out a lot better. + + def __init__(self, hs): + super(RoomMemberHandler, self).__init__(hs) + + self.clock = hs.get_clock() + + self.distributor = hs.get_distributor() + self.distributor.declare("user_joined_room") + self.distributor.declare("user_left_room") + + @defer.inlineCallbacks + def get_room_members(self, room_id): + users = yield self.store.get_users_in_room(room_id) + + defer.returnValue([UserID.from_string(u) for u in users]) + + @defer.inlineCallbacks + def fetch_room_distributions_into(self, room_id, localusers=None, + remotedomains=None, ignore_user=None): + """Fetch the distribution of a room, adding elements to either + 'localusers' or 'remotedomains', which should be a set() if supplied. + If ignore_user is set, ignore that user. + + This function returns nothing; its result is performed by the + side-effect on the two passed sets. This allows easy accumulation of + member lists of multiple rooms at once if required. + """ + members = yield self.get_room_members(room_id) + for member in members: + if ignore_user is not None and member == ignore_user: + continue + + if self.hs.is_mine(member): + if localusers is not None: + localusers.add(member) + else: + if remotedomains is not None: + remotedomains.add(member.domain) + + @defer.inlineCallbacks + def _local_membership_update( + self, requester, target, room_id, membership, + prev_event_ids, + txn_id=None, + ratelimit=True, + ): + msg_handler = self.hs.get_handlers().message_handler + + content = {"membership": membership} + if requester.is_guest: + content["kind"] = "guest" + + event, context = yield msg_handler.create_event( + { + "type": EventTypes.Member, + "content": content, + "room_id": room_id, + "sender": requester.user.to_string(), + "state_key": target.to_string(), + + # For backwards compatibility: + "membership": membership, + }, + token_id=requester.access_token_id, + txn_id=txn_id, + prev_event_ids=prev_event_ids, + ) + + yield self.handle_new_client_event( + requester, + event, + context, + extra_users=[target], + ratelimit=ratelimit, + ) + + prev_member_event = context.current_state.get( + (EventTypes.Member, target.to_string()), + None + ) + + if event.membership == Membership.JOIN: + if not prev_member_event or prev_member_event.membership != Membership.JOIN: + # Only fire user_joined_room if the user has acutally joined the + # room. Don't bother if the user is just changing their profile + # info. + yield user_joined_room(self.distributor, target, room_id) + elif event.membership == Membership.LEAVE: + if prev_member_event and prev_member_event.membership == Membership.JOIN: + user_left_room(self.distributor, target, room_id) + + @defer.inlineCallbacks + def remote_join(self, remote_room_hosts, room_id, user, content): + if len(remote_room_hosts) == 0: + raise SynapseError(404, "No known servers") + + # We don't do an auth check if we are doing an invite + # join dance for now, since we're kinda implicitly checking + # that we are allowed to join when we decide whether or not we + # need to do the invite/join dance. + yield self.hs.get_handlers().federation_handler.do_invite_join( + remote_room_hosts, + room_id, + user.to_string(), + content, + ) + yield user_joined_room(self.distributor, user, room_id) + + def reject_remote_invite(self, user_id, room_id, remote_room_hosts): + return self.hs.get_handlers().federation_handler.do_remotely_reject_invite( + remote_room_hosts, + room_id, + user_id + ) + + @defer.inlineCallbacks + def update_membership( + self, + requester, + target, + room_id, + action, + txn_id=None, + remote_room_hosts=None, + third_party_signed=None, + ratelimit=True, + ): + effective_membership_state = action + if action in ["kick", "unban"]: + effective_membership_state = "leave" + + if third_party_signed is not None: + replication = self.hs.get_replication_layer() + yield replication.exchange_third_party_invite( + third_party_signed["sender"], + target.to_string(), + room_id, + third_party_signed, + ) + + if not remote_room_hosts: + remote_room_hosts = [] + + latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id) + current_state = yield self.state_handler.get_current_state( + room_id, latest_event_ids=latest_event_ids, + ) + + old_state = current_state.get((EventTypes.Member, target.to_string())) + old_membership = old_state.content.get("membership") if old_state else None + if action == "unban" and old_membership != "ban": + raise SynapseError( + 403, + "Cannot unban user who was not banned (membership=%s)" % old_membership, + errcode=Codes.BAD_STATE + ) + if old_membership == "ban" and action != "unban": + raise SynapseError( + 403, + "Cannot %s user who was is banned" % (action,), + errcode=Codes.BAD_STATE + ) + + is_host_in_room = self.is_host_in_room(current_state) + + if effective_membership_state == Membership.JOIN: + if requester.is_guest and not self._can_guest_join(current_state): + # This should be an auth check, but guests are a local concept, + # so don't really fit into the general auth process. + raise AuthError(403, "Guest access not allowed") + + if not is_host_in_room: + inviter = yield self.get_inviter(target.to_string(), room_id) + if inviter and not self.hs.is_mine(inviter): + remote_room_hosts.append(inviter.domain) + + content = {"membership": Membership.JOIN} + + profile = self.hs.get_handlers().profile_handler + content["displayname"] = yield profile.get_displayname(target) + content["avatar_url"] = yield profile.get_avatar_url(target) + + if requester.is_guest: + content["kind"] = "guest" + + ret = yield self.remote_join( + remote_room_hosts, room_id, target, content + ) + defer.returnValue(ret) + + elif effective_membership_state == Membership.LEAVE: + if not is_host_in_room: + # perhaps we've been invited + inviter = yield self.get_inviter(target.to_string(), room_id) + if not inviter: + raise SynapseError(404, "Not a known room") + + if self.hs.is_mine(inviter): + # the inviter was on our server, but has now left. Carry on + # with the normal rejection codepath. + # + # This is a bit of a hack, because the room might still be + # active on other servers. + pass + else: + # send the rejection to the inviter's HS. + remote_room_hosts = remote_room_hosts + [inviter.domain] + + try: + ret = yield self.reject_remote_invite( + target.to_string(), room_id, remote_room_hosts + ) + defer.returnValue(ret) + except SynapseError as e: + logger.warn("Failed to reject invite: %s", e) + + yield self.store.locally_reject_invite( + target.to_string(), room_id + ) + + defer.returnValue({}) + + yield self._local_membership_update( + requester=requester, + target=target, + room_id=room_id, + membership=effective_membership_state, + txn_id=txn_id, + ratelimit=ratelimit, + prev_event_ids=latest_event_ids, + ) + + @defer.inlineCallbacks + def send_membership_event( + self, + requester, + event, + context, + remote_room_hosts=None, + ratelimit=True, + ): + """ + Change the membership status of a user in a room. + + Args: + requester (Requester): The local user who requested the membership + event. If None, certain checks, like whether this homeserver can + act as the sender, will be skipped. + event (SynapseEvent): The membership event. + context: The context of the event. + is_guest (bool): Whether the sender is a guest. + room_hosts ([str]): Homeservers which are likely to already be in + the room, and could be danced with in order to join this + homeserver for the first time. + ratelimit (bool): Whether to rate limit this request. + Raises: + SynapseError if there was a problem changing the membership. + """ + remote_room_hosts = remote_room_hosts or [] + + target_user = UserID.from_string(event.state_key) + room_id = event.room_id + + if requester is not None: + sender = UserID.from_string(event.sender) + assert sender == requester.user, ( + "Sender (%s) must be same as requester (%s)" % + (sender, requester.user) + ) + assert self.hs.is_mine(sender), "Sender must be our own: %s" % (sender,) + else: + requester = Requester(target_user, None, False) + + message_handler = self.hs.get_handlers().message_handler + prev_event = message_handler.deduplicate_state_event(event, context) + if prev_event is not None: + return + + if event.membership == Membership.JOIN: + if requester.is_guest and not self._can_guest_join(context.current_state): + # This should be an auth check, but guests are a local concept, + # so don't really fit into the general auth process. + raise AuthError(403, "Guest access not allowed") + + yield self.handle_new_client_event( + requester, + event, + context, + extra_users=[target_user], + ratelimit=ratelimit, + ) + + prev_member_event = context.current_state.get( + (EventTypes.Member, target_user.to_string()), + None + ) + + if event.membership == Membership.JOIN: + if not prev_member_event or prev_member_event.membership != Membership.JOIN: + # Only fire user_joined_room if the user has acutally joined the + # room. Don't bother if the user is just changing their profile + # info. + yield user_joined_room(self.distributor, target_user, room_id) + elif event.membership == Membership.LEAVE: + if prev_member_event and prev_member_event.membership == Membership.JOIN: + user_left_room(self.distributor, target_user, room_id) + + def _can_guest_join(self, current_state): + """ + Returns whether a guest can join a room based on its current state. + """ + guest_access = current_state.get((EventTypes.GuestAccess, ""), None) + return ( + guest_access + and guest_access.content + and "guest_access" in guest_access.content + and guest_access.content["guest_access"] == "can_join" + ) + + def _should_do_dance(self, current_state, inviter, room_hosts=None): + # TODO: Shouldn't this be remote_room_host? + room_hosts = room_hosts or [] + + is_host_in_room = self.is_host_in_room(current_state) + if is_host_in_room: + return False, room_hosts + + if inviter and not self.hs.is_mine(inviter): + room_hosts.append(inviter.domain) + + return True, room_hosts + + @defer.inlineCallbacks + def lookup_room_alias(self, room_alias): + """ + Get the room ID associated with a room alias. + + Args: + room_alias (RoomAlias): The alias to look up. + Returns: + A tuple of: + The room ID as a RoomID object. + Hosts likely to be participating in the room ([str]). + Raises: + SynapseError if room alias could not be found. + """ + directory_handler = self.hs.get_handlers().directory_handler + mapping = yield directory_handler.get_association(room_alias) + + if not mapping: + raise SynapseError(404, "No such room alias") + + room_id = mapping["room_id"] + servers = mapping["servers"] + + defer.returnValue((RoomID.from_string(room_id), servers)) + + @defer.inlineCallbacks + def get_inviter(self, user_id, room_id): + invite = yield self.store.get_invite_for_user_in_room( + user_id=user_id, + room_id=room_id, + ) + if invite: + defer.returnValue(UserID.from_string(invite.sender)) + + @defer.inlineCallbacks + def get_joined_rooms_for_user(self, user): + """Returns a list of roomids that the user has any of the given + membership states in.""" + + rooms = yield self.store.get_rooms_for_user( + user.to_string(), + ) + + # For some reason the list of events contains duplicates + # TODO(paul): work out why because I really don't think it should + room_ids = set(r.room_id for r in rooms) + + defer.returnValue(room_ids) + + @defer.inlineCallbacks + def do_3pid_invite( + self, + room_id, + inviter, + medium, + address, + id_server, + requester, + txn_id + ): + invitee = yield self._lookup_3pid( + id_server, medium, address + ) + + if invitee: + handler = self.hs.get_handlers().room_member_handler + yield handler.update_membership( + requester, + UserID.from_string(invitee), + room_id, + "invite", + txn_id=txn_id, + ) + else: + yield self._make_and_store_3pid_invite( + requester, + id_server, + medium, + address, + room_id, + inviter, + txn_id=txn_id + ) + + @defer.inlineCallbacks + def _lookup_3pid(self, id_server, medium, address): + """Looks up a 3pid in the passed identity server. + + Args: + id_server (str): The server name (including port, if required) + of the identity server to use. + medium (str): The type of the third party identifier (e.g. "email"). + address (str): The third party identifier (e.g. "foo@example.com"). + + Returns: + str: the matrix ID of the 3pid, or None if it is not recognized. + """ + try: + data = yield self.hs.get_simple_http_client().get_json( + "%s%s/_matrix/identity/api/v1/lookup" % (id_server_scheme, id_server,), + { + "medium": medium, + "address": address, + } + ) + + if "mxid" in data: + if "signatures" not in data: + raise AuthError(401, "No signatures on 3pid binding") + self.verify_any_signature(data, id_server) + defer.returnValue(data["mxid"]) + + except IOError as e: + logger.warn("Error from identity server lookup: %s" % (e,)) + defer.returnValue(None) + + @defer.inlineCallbacks + def verify_any_signature(self, data, server_hostname): + if server_hostname not in data["signatures"]: + raise AuthError(401, "No signature from server %s" % (server_hostname,)) + for key_name, signature in data["signatures"][server_hostname].items(): + key_data = yield self.hs.get_simple_http_client().get_json( + "%s%s/_matrix/identity/api/v1/pubkey/%s" % + (id_server_scheme, server_hostname, key_name,), + ) + if "public_key" not in key_data: + raise AuthError(401, "No public key named %s from %s" % + (key_name, server_hostname,)) + verify_signed_json( + data, + server_hostname, + decode_verify_key_bytes(key_name, decode_base64(key_data["public_key"])) + ) + return + + @defer.inlineCallbacks + def _make_and_store_3pid_invite( + self, + requester, + id_server, + medium, + address, + room_id, + user, + txn_id + ): + room_state = yield self.hs.get_state_handler().get_current_state(room_id) + + inviter_display_name = "" + inviter_avatar_url = "" + member_event = room_state.get((EventTypes.Member, user.to_string())) + if member_event: + inviter_display_name = member_event.content.get("displayname", "") + inviter_avatar_url = member_event.content.get("avatar_url", "") + + canonical_room_alias = "" + canonical_alias_event = room_state.get((EventTypes.CanonicalAlias, "")) + if canonical_alias_event: + canonical_room_alias = canonical_alias_event.content.get("alias", "") + + room_name = "" + room_name_event = room_state.get((EventTypes.Name, "")) + if room_name_event: + room_name = room_name_event.content.get("name", "") + + room_join_rules = "" + join_rules_event = room_state.get((EventTypes.JoinRules, "")) + if join_rules_event: + room_join_rules = join_rules_event.content.get("join_rule", "") + + room_avatar_url = "" + room_avatar_event = room_state.get((EventTypes.RoomAvatar, "")) + if room_avatar_event: + room_avatar_url = room_avatar_event.content.get("url", "") + + token, public_keys, fallback_public_key, display_name = ( + yield self._ask_id_server_for_third_party_invite( + id_server=id_server, + medium=medium, + address=address, + room_id=room_id, + inviter_user_id=user.to_string(), + room_alias=canonical_room_alias, + room_avatar_url=room_avatar_url, + room_join_rules=room_join_rules, + room_name=room_name, + inviter_display_name=inviter_display_name, + inviter_avatar_url=inviter_avatar_url + ) + ) + + msg_handler = self.hs.get_handlers().message_handler + yield msg_handler.create_and_send_nonmember_event( + requester, + { + "type": EventTypes.ThirdPartyInvite, + "content": { + "display_name": display_name, + "public_keys": public_keys, + + # For backwards compatibility: + "key_validity_url": fallback_public_key["key_validity_url"], + "public_key": fallback_public_key["public_key"], + }, + "room_id": room_id, + "sender": user.to_string(), + "state_key": token, + }, + txn_id=txn_id, + ) + + @defer.inlineCallbacks + def _ask_id_server_for_third_party_invite( + self, + id_server, + medium, + address, + room_id, + inviter_user_id, + room_alias, + room_avatar_url, + room_join_rules, + room_name, + inviter_display_name, + inviter_avatar_url + ): + """ + Asks an identity server for a third party invite. + + Args: + id_server (str): hostname + optional port for the identity server. + medium (str): The literal string "email". + address (str): The third party address being invited. + room_id (str): The ID of the room to which the user is invited. + inviter_user_id (str): The user ID of the inviter. + room_alias (str): An alias for the room, for cosmetic notifications. + room_avatar_url (str): The URL of the room's avatar, for cosmetic + notifications. + room_join_rules (str): The join rules of the email (e.g. "public"). + room_name (str): The m.room.name of the room. + inviter_display_name (str): The current display name of the + inviter. + inviter_avatar_url (str): The URL of the inviter's avatar. + + Returns: + A deferred tuple containing: + token (str): The token which must be signed to prove authenticity. + public_keys ([{"public_key": str, "key_validity_url": str}]): + public_key is a base64-encoded ed25519 public key. + fallback_public_key: One element from public_keys. + display_name (str): A user-friendly name to represent the invited + user. + """ + + is_url = "%s%s/_matrix/identity/api/v1/store-invite" % ( + id_server_scheme, id_server, + ) + + invite_config = { + "medium": medium, + "address": address, + "room_id": room_id, + "room_alias": room_alias, + "room_avatar_url": room_avatar_url, + "room_join_rules": room_join_rules, + "room_name": room_name, + "sender": inviter_user_id, + "sender_display_name": inviter_display_name, + "sender_avatar_url": inviter_avatar_url, + } + + if self.hs.config.invite_3pid_guest: + registration_handler = self.hs.get_handlers().registration_handler + guest_access_token = yield registration_handler.guest_access_token_for( + medium=medium, + address=address, + inviter_user_id=inviter_user_id, + ) + + guest_user_info = yield self.hs.get_auth().get_user_by_access_token( + guest_access_token + ) + + invite_config.update({ + "guest_access_token": guest_access_token, + "guest_user_id": guest_user_info["user"].to_string(), + }) + + data = yield self.hs.get_simple_http_client().post_urlencoded_get_json( + is_url, + invite_config + ) + # TODO: Check for success + token = data["token"] + public_keys = data.get("public_keys", []) + if "public_key" in data: + fallback_public_key = { + "public_key": data["public_key"], + "key_validity_url": "%s%s/_matrix/identity/api/v1/pubkey/isvalid" % ( + id_server_scheme, id_server, + ), + } + else: + fallback_public_key = public_keys[0] + + if not public_keys: + public_keys.append(fallback_public_key) + display_name = data["display_name"] + defer.returnValue((token, public_keys, fallback_public_key, display_name)) + + @defer.inlineCallbacks + def forget(self, user, room_id): + user_id = user.to_string() + + member = yield self.state_handler.get_current_state( + room_id=room_id, + event_type=EventTypes.Member, + state_key=user_id + ) + membership = member.membership if member else None + + if membership is not None and membership != Membership.LEAVE: + raise SynapseError(400, "User %s in room %s" % ( + user_id, room_id + )) + + if membership: + yield self.store.forget(user_id, room_id) diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index 48ab5707e1..231140b655 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -17,8 +17,8 @@ from ._base import BaseHandler from synapse.streams.config import PaginationConfig from synapse.api.constants import Membership, EventTypes -from synapse.util import unwrapFirstError -from synapse.util.logcontext import LoggingContext, preserve_fn +from synapse.util.async import concurrently_execute +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 @@ -250,58 +250,50 @@ class SyncHandler(BaseHandler): joined = [] invited = [] archived = [] - deferreds = [] - - room_list_chunks = [room_list[i:i + 10] for i in xrange(0, len(room_list), 10)] - for room_list_chunk in room_list_chunks: - for event in room_list_chunk: - if event.membership == Membership.JOIN: - room_sync_deferred = preserve_fn( - self.full_state_sync_for_joined_room - )( - room_id=event.room_id, - sync_config=sync_config, - now_token=now_token, - timeline_since_token=timeline_since_token, - ephemeral_by_room=ephemeral_by_room, - tags_by_room=tags_by_room, - account_data_by_room=account_data_by_room, - ) - room_sync_deferred.addCallback(joined.append) - deferreds.append(room_sync_deferred) - elif event.membership == Membership.INVITE: - invite = yield self.store.get_event(event.event_id) - invited.append(InvitedSyncResult( - room_id=event.room_id, - invite=invite, - )) - elif event.membership in (Membership.LEAVE, Membership.BAN): - # Always send down rooms we were banned or kicked from. - if not sync_config.filter_collection.include_leave: - if event.membership == Membership.LEAVE: - if sync_config.user.to_string() == event.sender: - continue - - leave_token = now_token.copy_and_replace( - "room_key", "s%d" % (event.stream_ordering,) - ) - room_sync_deferred = preserve_fn( - self.full_state_sync_for_archived_room - )( - sync_config=sync_config, - room_id=event.room_id, - leave_event_id=event.event_id, - leave_token=leave_token, - timeline_since_token=timeline_since_token, - tags_by_room=tags_by_room, - account_data_by_room=account_data_by_room, - ) - room_sync_deferred.addCallback(archived.append) - deferreds.append(room_sync_deferred) - yield defer.gatherResults( - deferreds, consumeErrors=True - ).addErrback(unwrapFirstError) + user_id = sync_config.user.to_string() + + @defer.inlineCallbacks + def _generate_room_entry(event): + if event.membership == Membership.JOIN: + room_result = yield self.full_state_sync_for_joined_room( + room_id=event.room_id, + sync_config=sync_config, + now_token=now_token, + timeline_since_token=timeline_since_token, + ephemeral_by_room=ephemeral_by_room, + tags_by_room=tags_by_room, + account_data_by_room=account_data_by_room, + ) + joined.append(room_result) + elif event.membership == Membership.INVITE: + invite = yield self.store.get_event(event.event_id) + invited.append(InvitedSyncResult( + room_id=event.room_id, + invite=invite, + )) + elif event.membership in (Membership.LEAVE, Membership.BAN): + # Always send down rooms we were banned or kicked from. + if not sync_config.filter_collection.include_leave: + if event.membership == Membership.LEAVE: + if user_id == event.sender: + return + + leave_token = now_token.copy_and_replace( + "room_key", "s%d" % (event.stream_ordering,) + ) + room_result = yield self.full_state_sync_for_archived_room( + sync_config=sync_config, + room_id=event.room_id, + leave_event_id=event.event_id, + leave_token=leave_token, + timeline_since_token=timeline_since_token, + tags_by_room=tags_by_room, + account_data_by_room=account_data_by_room, + ) + archived.append(room_result) + + yield concurrently_execute(_generate_room_entry, room_list, 10) account_data_for_user = sync_config.filter_collection.filter_account_data( self.account_data_for_user(account_data) @@ -671,7 +663,8 @@ class SyncHandler(BaseHandler): def load_filtered_recents(self, room_id, sync_config, now_token, since_token=None, recents=None, newly_joined_room=False): """ - :returns a Deferred TimelineBatch + Returns: + a Deferred TimelineBatch """ with Measure(self.clock, "load_filtered_recents"): filtering_factor = 2 @@ -838,8 +831,11 @@ class SyncHandler(BaseHandler): """ Get the room state after the given event - :param synapse.events.EventBase event: event of interest - :return: A Deferred map from ((type, state_key)->Event) + Args: + event(synapse.events.EventBase): event of interest + + Returns: + A Deferred map from ((type, state_key)->Event) """ state = yield self.store.get_state_for_event(event.event_id) if event.is_state(): @@ -850,9 +846,13 @@ class SyncHandler(BaseHandler): @defer.inlineCallbacks def get_state_at(self, room_id, stream_position): """ Get the room state at a particular stream position - :param str room_id: room for which to get state - :param StreamToken stream_position: point at which to get state - :returns: A Deferred map from ((type, state_key)->Event) + + Args: + room_id(str): room for which to get state + stream_position(StreamToken): point at which to get state + + Returns: + A Deferred map from ((type, state_key)->Event) """ last_events, token = yield self.store.get_recent_events_for_room( room_id, end_token=stream_position.room_key, limit=1, @@ -873,15 +873,18 @@ class SyncHandler(BaseHandler): """ Works out the differnce in state between the start of the timeline and the previous sync. - :param str room_id - :param TimelineBatch batch: The timeline batch for the room that will - be sent to the user. - :param sync_config - :param str since_token: Token of the end of the previous batch. May be None. - :param str now_token: Token of the end of the current batch. - :param bool full_state: Whether to force returning the full state. + Args: + room_id(str): + batch(synapse.handlers.sync.TimelineBatch): The timeline batch for + the room that will be sent to the user. + sync_config(synapse.handlers.sync.SyncConfig): + since_token(str|None): Token of the end of the previous batch. May + be None. + now_token(str): Token of the end of the current batch. + full_state(bool): Whether to force returning the full state. - :returns A new event dictionary + Returns: + A deferred new event dictionary """ # TODO(mjark) Check if the state events were received by the server # after the previous sync, since we need to include those state @@ -953,11 +956,13 @@ class SyncHandler(BaseHandler): Check if the user has just joined the given room (so should be given the full state) - :param sync_config: - :param dict[(str,str), synapse.events.FrozenEvent] state_delta: the - difference in state since the last sync + Args: + sync_config(synapse.handlers.sync.SyncConfig): + state_delta(dict[(str,str), synapse.events.FrozenEvent]): the + difference in state since the last sync - :returns A deferred Tuple (state_delta, limited) + Returns: + A deferred Tuple (state_delta, limited) """ join_event = state_delta.get(( EventTypes.Member, sync_config.user.to_string()), None) |