diff options
Diffstat (limited to 'synapse/handlers')
| -rw-r--r-- | synapse/handlers/__init__.py | 5 | ||||
| -rw-r--r-- | synapse/handlers/events.py | 5 | ||||
| -rw-r--r-- | synapse/handlers/federation.py | 8 | ||||
| -rw-r--r-- | synapse/handlers/message.py | 98 | ||||
| -rw-r--r-- | synapse/handlers/presence.py | 61 | ||||
| -rw-r--r-- | synapse/handlers/register.py | 14 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 28 | ||||
| -rw-r--r-- | synapse/handlers/room_member.py | 48 |
8 files changed, 192 insertions, 75 deletions
diff --git a/synapse/handlers/__init__.py b/synapse/handlers/__init__.py index 8f8fd82eb0..d358842b3e 100644 --- a/synapse/handlers/__init__.py +++ b/synapse/handlers/__init__.py @@ -14,9 +14,7 @@ # limitations under the License. from .register import RegistrationHandler -from .room import ( - RoomCreationHandler, RoomContextHandler, -) +from .room import RoomContextHandler from .message import MessageHandler from .federation import FederationHandler from .directory import DirectoryHandler @@ -47,7 +45,6 @@ class Handlers(object): def __init__(self, hs): self.registration_handler = RegistrationHandler(hs) self.message_handler = MessageHandler(hs) - self.room_creation_handler = RoomCreationHandler(hs) self.federation_handler = FederationHandler(hs) self.directory_handler = DirectoryHandler(hs) self.admin_handler = AdminHandler(hs) diff --git a/synapse/handlers/events.py b/synapse/handlers/events.py index d3685fb12a..8bc642675f 100644 --- a/synapse/handlers/events.py +++ b/synapse/handlers/events.py @@ -48,6 +48,7 @@ class EventStreamHandler(BaseHandler): self.notifier = hs.get_notifier() self.state = hs.get_state_handler() + self._server_notices_sender = hs.get_server_notices_sender() @defer.inlineCallbacks @log_function @@ -58,6 +59,10 @@ class EventStreamHandler(BaseHandler): If `only_keys` is not None, events from keys will be sent down. """ + + # send any outstanding server notices to the user. + yield self._server_notices_sender.on_user_syncing(auth_user_id) + auth_user = UserID.from_string(auth_user_id) presence_handler = self.hs.get_presence_handler() diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index f39233d846..ba3ede8024 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -81,6 +81,7 @@ class FederationHandler(BaseHandler): self.pusher_pool = hs.get_pusherpool() self.spam_checker = hs.get_spam_checker() self.event_creation_handler = hs.get_event_creation_handler() + self._server_notices_mxid = hs.config.server_notices_mxid # When joining a room we need to queue any events for that room up self.room_queues = {} @@ -1180,6 +1181,13 @@ class FederationHandler(BaseHandler): if not self.is_mine_id(event.state_key): raise SynapseError(400, "The invite event must be for this server") + # block any attempts to invite the server notices mxid + if event.state_key == self._server_notices_mxid: + raise SynapseError( + http_client.FORBIDDEN, + "Cannot invite this user", + ) + event.internal_metadata.outlier = True event.internal_metadata.invite_from_remote = True diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index b793fc4df7..c3adbc6c95 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -20,10 +20,15 @@ import sys from canonicaljson import encode_canonical_json import six from twisted.internet import defer, reactor +from twisted.internet.defer import succeed from twisted.python.failure import Failure from synapse.api.constants import EventTypes, Membership, MAX_DEPTH -from synapse.api.errors import AuthError, Codes, SynapseError +from synapse.api.errors import ( + AuthError, Codes, SynapseError, + ConsentNotGivenError, +) +from synapse.api.urls import ConsentURIBuilder from synapse.crypto.event_signing import add_hashes_and_signatures from synapse.events.utils import serialize_event from synapse.events.validator import EventValidator @@ -86,14 +91,14 @@ class MessageHandler(BaseHandler): # map from purge id to PurgeStatus self._purges_by_id = {} - def start_purge_history(self, room_id, topological_ordering, + def start_purge_history(self, room_id, token, delete_local_events=False): """Start off a history purge on a room. Args: room_id (str): The room to purge from - topological_ordering (int): minimum topo ordering to preserve + token (str): topological token to delete events before delete_local_events (bool): True to delete local events as well as remote ones @@ -115,19 +120,19 @@ class MessageHandler(BaseHandler): self._purges_by_id[purge_id] = PurgeStatus() run_in_background( self._purge_history, - purge_id, room_id, topological_ordering, delete_local_events, + purge_id, room_id, token, delete_local_events, ) return purge_id @defer.inlineCallbacks - def _purge_history(self, purge_id, room_id, topological_ordering, + def _purge_history(self, purge_id, room_id, token, delete_local_events): """Carry out a history purge on a room. Args: purge_id (str): The id for this purge room_id (str): The room to purge from - topological_ordering (int): minimum topo ordering to preserve + token (str): topological token to delete events before delete_local_events (bool): True to delete local events as well as remote ones @@ -138,7 +143,7 @@ class MessageHandler(BaseHandler): try: with (yield self.pagination_lock.write(room_id)): yield self.store.purge_history( - room_id, topological_ordering, delete_local_events, + room_id, token, delete_local_events, ) logger.info("[purge] complete") self._purges_by_id[purge_id].status = PurgeStatus.STATUS_COMPLETE @@ -431,6 +436,9 @@ class EventCreationHandler(object): self.spam_checker = hs.get_spam_checker() + if self.config.block_events_without_consent_error is not None: + self._consent_uri_builder = ConsentURIBuilder(self.config) + @defer.inlineCallbacks def create_event(self, requester, event_dict, token_id=None, txn_id=None, prev_events_and_hashes=None): @@ -482,6 +490,10 @@ class EventCreationHandler(object): target, e ) + is_exempt = yield self._is_exempt_from_privacy_policy(builder) + if not is_exempt: + yield self.assert_accepted_privacy_policy(requester) + if token_id is not None: builder.internal_metadata.token_id = token_id @@ -496,6 +508,78 @@ class EventCreationHandler(object): defer.returnValue((event, context)) + def _is_exempt_from_privacy_policy(self, builder): + """"Determine if an event to be sent is exempt from having to consent + to the privacy policy + + Args: + builder (synapse.events.builder.EventBuilder): event being created + + Returns: + Deferred[bool]: true if the event can be sent without the user + consenting + """ + # the only thing the user can do is join the server notices room. + if builder.type == EventTypes.Member: + membership = builder.content.get("membership", None) + if membership == Membership.JOIN: + return self._is_server_notices_room(builder.room_id) + return succeed(False) + + @defer.inlineCallbacks + def _is_server_notices_room(self, room_id): + if self.config.server_notices_mxid is None: + defer.returnValue(False) + user_ids = yield self.store.get_users_in_room(room_id) + defer.returnValue(self.config.server_notices_mxid in user_ids) + + @defer.inlineCallbacks + def assert_accepted_privacy_policy(self, requester): + """Check if a user has accepted the privacy policy + + Called when the given user is about to do something that requires + privacy consent. We see if the user is exempt and otherwise check that + they have given consent. If they have not, a ConsentNotGiven error is + raised. + + Args: + requester (synapse.types.Requester): + The user making the request + + Returns: + Deferred[None]: returns normally if the user has consented or is + exempt + + Raises: + ConsentNotGivenError: if the user has not given consent yet + """ + if self.config.block_events_without_consent_error is None: + return + + # exempt AS users from needing consent + if requester.app_service is not None: + return + + user_id = requester.user.to_string() + + # exempt the system notices user + if ( + self.config.server_notices_mxid is not None and + user_id == self.config.server_notices_mxid + ): + return + + u = yield self.store.get_user_by_id(user_id) + assert u is not None + if u["consent_version"] == self.config.user_consent_version: + return + + consent_uri = self._consent_uri_builder.build_user_consent_uri(user_id) + raise ConsentNotGivenError( + msg=self.config.block_events_without_consent_error, + consent_uri=consent_uri, + ) + @defer.inlineCallbacks def send_nonmember_event(self, requester, event, context, ratelimit=True): """ diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py index 06d937ef3a..aca822c46a 100644 --- a/synapse/handlers/presence.py +++ b/synapse/handlers/presence.py @@ -87,6 +87,11 @@ assert LAST_ACTIVE_GRANULARITY < IDLE_TIMER class PresenceHandler(object): def __init__(self, hs): + """ + + Args: + hs (synapse.server.HomeServer): + """ self.is_mine = hs.is_mine self.is_mine_id = hs.is_mine_id self.clock = hs.get_clock() @@ -94,7 +99,6 @@ class PresenceHandler(object): self.wheel_timer = WheelTimer() self.notifier = hs.get_notifier() self.federation = hs.get_federation_sender() - self.state = hs.get_state_handler() federation_registry = hs.get_federation_registry() @@ -464,61 +468,6 @@ class PresenceHandler(object): return syncing_user_ids @defer.inlineCallbacks - def update_external_syncs(self, process_id, syncing_user_ids): - """Update the syncing users for an external process - - Args: - process_id(str): An identifier for the process the users are - syncing against. This allows synapse to process updates - as user start and stop syncing against a given process. - syncing_user_ids(set(str)): The set of user_ids that are - currently syncing on that server. - """ - - # Grab the previous list of user_ids that were syncing on that process - prev_syncing_user_ids = ( - self.external_process_to_current_syncs.get(process_id, set()) - ) - # Grab the current presence state for both the users that are syncing - # now and the users that were syncing before this update. - prev_states = yield self.current_state_for_users( - syncing_user_ids | prev_syncing_user_ids - ) - updates = [] - time_now_ms = self.clock.time_msec() - - # For each new user that is syncing check if we need to mark them as - # being online. - for new_user_id in syncing_user_ids - prev_syncing_user_ids: - prev_state = prev_states[new_user_id] - if prev_state.state == PresenceState.OFFLINE: - updates.append(prev_state.copy_and_replace( - state=PresenceState.ONLINE, - last_active_ts=time_now_ms, - last_user_sync_ts=time_now_ms, - )) - else: - updates.append(prev_state.copy_and_replace( - last_user_sync_ts=time_now_ms, - )) - - # For each user that is still syncing or stopped syncing update the - # last sync time so that we will correctly apply the grace period when - # they stop syncing. - for old_user_id in prev_syncing_user_ids: - prev_state = prev_states[old_user_id] - updates.append(prev_state.copy_and_replace( - last_user_sync_ts=time_now_ms, - )) - - yield self._update_states(updates) - - # Update the last updated time for the process. We expire the entries - # if we don't receive an update in the given timeframe. - self.external_process_last_updated_ms[process_id] = self.clock.time_msec() - self.external_process_to_current_syncs[process_id] = syncing_user_ids - - @defer.inlineCallbacks def update_external_syncs_row(self, process_id, user_id, is_syncing, sync_time_msec): """Update the syncing users for an external process as a delta. diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index f83c6b3cf8..7e52adda3c 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -34,6 +34,11 @@ logger = logging.getLogger(__name__) class RegistrationHandler(BaseHandler): def __init__(self, hs): + """ + + Args: + hs (synapse.server.HomeServer): + """ super(RegistrationHandler, self).__init__(hs) self.auth = hs.get_auth() @@ -49,6 +54,7 @@ class RegistrationHandler(BaseHandler): self._generate_user_id_linearizer = Linearizer( name="_generate_user_id_linearizer", ) + self._server_notices_mxid = hs.config.server_notices_mxid @defer.inlineCallbacks def check_username(self, localpart, guest_access_token=None, @@ -338,6 +344,14 @@ class RegistrationHandler(BaseHandler): yield identity_handler.bind_threepid(c, user_id) def check_user_id_not_appservice_exclusive(self, user_id, allowed_appservice=None): + # don't allow people to register the server notices mxid + if self._server_notices_mxid is not None: + if user_id == self._server_notices_mxid: + raise SynapseError( + 400, "This user ID is reserved.", + errcode=Codes.EXCLUSIVE + ) + # valid user IDs must not clash with any user ID namespaces claimed by # application services. services = self.store.get_app_services() diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 8df8fcbbad..b5850db42f 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -68,14 +68,27 @@ class RoomCreationHandler(BaseHandler): self.event_creation_handler = hs.get_event_creation_handler() @defer.inlineCallbacks - def create_room(self, requester, config, ratelimit=True): + def create_room(self, requester, config, ratelimit=True, + creator_join_profile=None): """ Creates a new room. Args: - requester (Requester): The user who requested the room creation. + requester (synapse.types.Requester): + The user who requested the room creation. config (dict) : A dict of configuration options. + ratelimit (bool): set to False to disable the rate limiter + + creator_join_profile (dict|None): + Set to override the displayname and avatar for the creating + user in this room. If unset, displayname and avatar will be + derived from the user's profile. If set, should contain the + values to go in the body of the 'join' event (typically + `avatar_url` and/or `displayname`. + Returns: - The new room ID. + Deferred[dict]: + a dict containing the keys `room_id` and, if an alias was + requested, `room_alias`. Raises: SynapseError if the room ID couldn't be stored, or something went horribly wrong. @@ -113,6 +126,10 @@ class RoomCreationHandler(BaseHandler): except Exception: raise SynapseError(400, "Invalid user_id: %s" % (i,)) + yield self.event_creation_handler.assert_accepted_privacy_policy( + requester, + ) + invite_3pid_list = config.get("invite_3pid", []) visibility = config.get("visibility", None) @@ -176,7 +193,8 @@ class RoomCreationHandler(BaseHandler): initial_state=initial_state, creation_content=creation_content, room_alias=room_alias, - power_level_content_override=config.get("power_level_content_override", {}) + power_level_content_override=config.get("power_level_content_override", {}), + creator_join_profile=creator_join_profile, ) if "name" in config: @@ -256,6 +274,7 @@ class RoomCreationHandler(BaseHandler): creation_content, room_alias, power_level_content_override, + creator_join_profile, ): def create(etype, content, **kwargs): e = { @@ -299,6 +318,7 @@ class RoomCreationHandler(BaseHandler): room_id, "join", ratelimit=False, + content=creator_join_profile, ) # We treat the power levels override specially as this needs to be one diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py index 714583f1d5..5263f09aaa 100644 --- a/synapse/handlers/room_member.py +++ b/synapse/handlers/room_member.py @@ -17,11 +17,14 @@ import abc import logging +from six.moves import http_client + from signedjson.key import decode_verify_key_bytes from signedjson.sign import verify_signed_json from twisted.internet import defer from unpaddedbase64 import decode_base64 +import synapse.server import synapse.types from synapse.api.constants import ( EventTypes, Membership, @@ -46,6 +49,11 @@ class RoomMemberHandler(object): __metaclass__ = abc.ABCMeta def __init__(self, hs): + """ + + Args: + hs (synapse.server.HomeServer): + """ self.hs = hs self.store = hs.get_datastore() self.auth = hs.get_auth() @@ -63,6 +71,7 @@ class RoomMemberHandler(object): self.clock = hs.get_clock() self.spam_checker = hs.get_spam_checker() + self._server_notices_mxid = self.config.server_notices_mxid @abc.abstractmethod def _remote_join(self, requester, remote_room_hosts, room_id, user, content): @@ -289,12 +298,36 @@ class RoomMemberHandler(object): is_blocked = yield self.store.is_room_blocked(room_id) if is_blocked: raise SynapseError(403, "This room has been blocked on this server") + else: + # we don't allow people to reject invites to, or leave, the + # server notice room. + is_blocked = yield self._is_server_notice_room(room_id) + if is_blocked: + raise SynapseError( + http_client.FORBIDDEN, + "You cannot leave this room", + ) + + if effective_membership_state == Membership.INVITE: + # block any attempts to invite the server notices mxid + if target.to_string() == self._server_notices_mxid: + raise SynapseError( + http_client.FORBIDDEN, + "Cannot invite this user", + ) - if effective_membership_state == "invite": block_invite = False - is_requester_admin = yield self.auth.is_server_admin( - requester.user, - ) + + if (self._server_notices_mxid is not None and + requester.user.to_string() == self._server_notices_mxid): + # allow the server notices mxid to send invites + is_requester_admin = True + + else: + is_requester_admin = yield self.auth.is_server_admin( + requester.user, + ) + if not is_requester_admin: if self.config.block_non_admin_invites: logger.info( @@ -844,6 +877,13 @@ class RoomMemberHandler(object): defer.returnValue(False) + @defer.inlineCallbacks + def _is_server_notice_room(self, room_id): + if self._server_notices_mxid is None: + defer.returnValue(False) + user_ids = yield self.store.get_users_in_room(room_id) + defer.returnValue(self._server_notices_mxid in user_ids) + class RoomMemberMasterHandler(RoomMemberHandler): def __init__(self, hs): |