305 lines
10 KiB
Python
305 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014 matrix.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from twisted.internet import defer
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from synapse.api.constants import Membership
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from synapse.api.events.room import RoomTopicEvent
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from synapse.api.errors import RoomError
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from synapse.streams.config import PaginationConfig
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from ._base import BaseRoomHandler
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import logging
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logger = logging.getLogger(__name__)
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class MessageHandler(BaseRoomHandler):
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def __init__(self, hs):
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super(MessageHandler, self).__init__(hs)
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self.hs = hs
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self.clock = hs.get_clock()
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self.event_factory = hs.get_event_factory()
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@defer.inlineCallbacks
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def get_message(self, msg_id=None, room_id=None, sender_id=None,
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user_id=None):
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""" Retrieve a message.
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Args:
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msg_id (str): The message ID to obtain.
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room_id (str): The room where the message resides.
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sender_id (str): The user ID of the user who sent the message.
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user_id (str): The user ID of the user making this request.
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Returns:
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The message, or None if no message exists.
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Raises:
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SynapseError if something went wrong.
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"""
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yield self.auth.check_joined_room(room_id, user_id)
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# Pull out the message from the db
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# msg = yield self.store.get_message(
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# room_id=room_id,
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# msg_id=msg_id,
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# user_id=sender_id
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# )
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# TODO (erikj): Once we work out the correct c-s api we need to think on how to do this.
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defer.returnValue(None)
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@defer.inlineCallbacks
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def send_message(self, event=None, suppress_auth=False, stamp_event=True):
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""" Send a message.
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Args:
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event : The message event to store.
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suppress_auth (bool) : True to suppress auth for this message. This
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is primarily so the home server can inject messages into rooms at
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will.
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stamp_event (bool) : True to stamp event content with server keys.
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Raises:
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SynapseError if something went wrong.
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"""
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if stamp_event:
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event.content["hsob_ts"] = int(self.clock.time_msec())
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snapshot = yield self.store.snapshot_room(event.room_id, event.user_id)
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if not suppress_auth:
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yield self.auth.check(event, snapshot, raises=True)
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yield self._on_new_room_event(event, snapshot)
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@defer.inlineCallbacks
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def get_messages(self, user_id=None, room_id=None, pagin_config=None,
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feedback=False):
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"""Get messages in a room.
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Args:
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user_id (str): The user requesting messages.
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room_id (str): The room they want messages from.
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pagin_config (synapse.api.streams.PaginationConfig): The pagination
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config rules to apply, if any.
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feedback (bool): True to get compressed feedback with the messages
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Returns:
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dict: Pagination API results
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"""
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yield self.auth.check_joined_room(room_id, user_id)
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data_source = self.hs.get_event_sources().sources["room"]
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if not pagin_config.from_token:
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pagin_config.from_token = yield self.hs.get_event_sources().get_current_token()
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user = self.hs.parse_userid(user_id)
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events, next_token = yield data_source.get_pagination_rows(
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user, pagin_config, room_id
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)
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chunk = {
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"chunk": [e.get_dict() for e in events],
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"start": pagin_config.from_token.to_string(),
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"end": next_token.to_string(),
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}
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defer.returnValue(chunk)
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@defer.inlineCallbacks
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def store_room_data(self, event=None, stamp_event=True):
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""" Stores data for a room.
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Args:
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event : The room path event
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stamp_event (bool) : True to stamp event content with server keys.
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Raises:
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SynapseError if something went wrong.
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"""
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snapshot = yield self.store.snapshot_room(event.room_id, event.user_id)
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yield self.auth.check(event, snapshot, raises=True)
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if stamp_event:
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event.content["hsob_ts"] = int(self.clock.time_msec())
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yield self.state_handler.handle_new_event(event, snapshot)
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yield self._on_new_room_event(event, snapshot)
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@defer.inlineCallbacks
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def get_room_data(self, user_id=None, room_id=None,
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event_type=None, state_key="",
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public_room_rules=[],
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private_room_rules=["join"]):
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""" Get data from a room.
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Args:
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event : The room path event
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public_room_rules : A list of membership states the user can be in,
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in order to read this data IN A PUBLIC ROOM. An empty list means
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'any state'.
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private_room_rules : A list of membership states the user can be
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in, in order to read this data IN A PRIVATE ROOM. An empty list
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means 'any state'.
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Returns:
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The path data content.
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Raises:
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SynapseError if something went wrong.
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"""
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if event_type == RoomTopicEvent.TYPE:
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# anyone invited/joined can read the topic
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private_room_rules = ["invite", "join"]
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# does this room exist
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room = yield self.store.get_room(room_id)
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if not room:
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raise RoomError(403, "Room does not exist.")
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# does this user exist in this room
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member = yield self.store.get_room_member(
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room_id=room_id,
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user_id="" if not user_id else user_id)
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member_state = member.membership if member else None
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if room.is_public and public_room_rules:
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# make sure the user meets public room rules
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if member_state not in public_room_rules:
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raise RoomError(403, "Member does not meet public room rules.")
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elif not room.is_public and private_room_rules:
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# make sure the user meets private room rules
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if member_state not in private_room_rules:
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raise RoomError(
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403, "Member does not meet private room rules.")
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data = yield self.store.get_current_state(
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room_id, event_type, state_key
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)
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defer.returnValue(data)
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@defer.inlineCallbacks
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def get_feedback(self, event_id):
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# yield self.auth.check_joined_room(room_id, user_id)
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# Pull out the feedback from the db
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fb = yield self.store.get_feedback(event_id)
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if fb:
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defer.returnValue(fb)
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defer.returnValue(None)
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@defer.inlineCallbacks
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def send_feedback(self, event, stamp_event=True):
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if stamp_event:
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event.content["hsob_ts"] = int(self.clock.time_msec())
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snapshot = yield self.store.snapshot_room(event.room_id, event.user_id)
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yield self.auth.check(event, snapshot, raises=True)
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# store message in db
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yield self._on_new_room_event(event, snapshot)
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@defer.inlineCallbacks
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def snapshot_all_rooms(self, user_id=None, pagin_config=None,
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feedback=False):
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"""Retrieve a snapshot of all rooms the user is invited or has joined.
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This snapshot may include messages for all rooms where the user is
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joined, depending on the pagination config.
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Args:
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user_id (str): The ID of the user making the request.
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pagin_config (synapse.api.streams.PaginationConfig): The pagination
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config used to determine how many messages *PER ROOM* to return.
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feedback (bool): True to get feedback along with these messages.
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Returns:
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A list of dicts with "room_id" and "membership" keys for all rooms
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the user is currently invited or joined in on. Rooms where the user
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is joined on, may return a "messages" key with messages, depending
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on the specified PaginationConfig.
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"""
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room_list = yield self.store.get_rooms_for_user_where_membership_is(
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user_id=user_id,
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membership_list=[Membership.INVITE, Membership.JOIN]
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)
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user = self.hs.parse_userid(user_id)
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rooms_ret = []
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now_token = yield self.hs.get_event_sources().get_current_token()
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presence_stream = self.hs.get_event_sources().sources["presence"]
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pagination_config = PaginationConfig(from_token=now_token)
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presence, _ = yield presence_stream.get_pagination_rows(
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user, pagination_config, None
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)
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limit = pagin_config.limit
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if not limit:
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limit = 10
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for event in room_list:
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d = {
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"room_id": event.room_id,
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"membership": event.membership,
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}
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if event.membership == Membership.INVITE:
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d["inviter"] = event.user_id
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rooms_ret.append(d)
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if event.membership != Membership.JOIN:
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continue
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try:
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messages, token = yield self.store.get_recent_events_for_room(
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event.room_id,
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limit=limit,
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end_token=now_token.room_key,
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)
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start_token = now_token.copy_and_replace("room_key", token[0])
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end_token = now_token.copy_and_replace("room_key", token[1])
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d["messages"] = {
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"chunk": [m.get_dict() for m in messages],
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"start": start_token.to_string(),
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"end": end_token.to_string(),
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}
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current_state = yield self.store.get_current_state(
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event.room_id
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)
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d["state"] = [c.get_dict() for c in current_state]
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except:
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logger.exception("Failed to get snapshot")
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ret = {
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"rooms": rooms_ret,
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"presence": presence,
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"end": now_token.to_string()
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}
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defer.returnValue(ret)
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