510 lines
17 KiB
Python
510 lines
17 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014, 2015 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 synapse.api.constants import EventTypes, Membership
|
|
from synapse.api.errors import RoomError, SynapseError
|
|
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.logcontext import PreserveLoggingContext
|
|
from synapse.types import UserID, RoomStreamToken
|
|
|
|
from ._base import BaseHandler
|
|
|
|
import logging
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class MessageHandler(BaseHandler):
|
|
|
|
def __init__(self, hs):
|
|
super(MessageHandler, self).__init__(hs)
|
|
self.hs = hs
|
|
self.state = hs.get_state_handler()
|
|
self.clock = hs.get_clock()
|
|
self.validator = EventValidator()
|
|
|
|
@defer.inlineCallbacks
|
|
def get_message(self, msg_id=None, room_id=None, sender_id=None,
|
|
user_id=None):
|
|
""" Retrieve a message.
|
|
|
|
Args:
|
|
msg_id (str): The message ID to obtain.
|
|
room_id (str): The room where the message resides.
|
|
sender_id (str): The user ID of the user who sent the message.
|
|
user_id (str): The user ID of the user making this request.
|
|
Returns:
|
|
The message, or None if no message exists.
|
|
Raises:
|
|
SynapseError if something went wrong.
|
|
"""
|
|
yield self.auth.check_joined_room(room_id, user_id)
|
|
|
|
# Pull out the message from the db
|
|
# msg = yield self.store.get_message(
|
|
# room_id=room_id,
|
|
# msg_id=msg_id,
|
|
# user_id=sender_id
|
|
# )
|
|
|
|
# TODO (erikj): Once we work out the correct c-s api we need to think
|
|
# on how to do this.
|
|
|
|
defer.returnValue(None)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_messages(self, user_id=None, room_id=None, pagin_config=None,
|
|
feedback=False, as_client_event=True):
|
|
"""Get messages in a room.
|
|
|
|
Args:
|
|
user_id (str): The user requesting messages.
|
|
room_id (str): The room they want messages from.
|
|
pagin_config (synapse.api.streams.PaginationConfig): The pagination
|
|
config rules to apply, if any.
|
|
feedback (bool): True to get compressed feedback with the messages
|
|
as_client_event (bool): True to get events in client-server format.
|
|
Returns:
|
|
dict: Pagination API results
|
|
"""
|
|
yield self.auth.check_joined_room(room_id, user_id)
|
|
|
|
data_source = self.hs.get_event_sources().sources["room"]
|
|
|
|
if not pagin_config.from_token:
|
|
pagin_config.from_token = (
|
|
yield self.hs.get_event_sources().get_current_token(
|
|
direction='b'
|
|
)
|
|
)
|
|
|
|
room_token = RoomStreamToken.parse(pagin_config.from_token.room_key)
|
|
if room_token.topological is None:
|
|
raise SynapseError(400, "Invalid token")
|
|
|
|
yield self.hs.get_handlers().federation_handler.maybe_backfill(
|
|
room_id, room_token.topological
|
|
)
|
|
|
|
user = UserID.from_string(user_id)
|
|
|
|
events, next_key = yield data_source.get_pagination_rows(
|
|
user, pagin_config.get_source_config("room"), room_id
|
|
)
|
|
|
|
next_token = pagin_config.from_token.copy_and_replace(
|
|
"room_key", next_key
|
|
)
|
|
|
|
if not events:
|
|
defer.returnValue({
|
|
"chunk": [],
|
|
"start": pagin_config.from_token.to_string(),
|
|
"end": next_token.to_string(),
|
|
})
|
|
|
|
events = yield self._filter_events_for_client(user_id, room_id, events)
|
|
|
|
time_now = self.clock.time_msec()
|
|
|
|
chunk = {
|
|
"chunk": [
|
|
serialize_event(e, time_now, as_client_event)
|
|
for e in events
|
|
],
|
|
"start": pagin_config.from_token.to_string(),
|
|
"end": next_token.to_string(),
|
|
}
|
|
|
|
defer.returnValue(chunk)
|
|
|
|
@defer.inlineCallbacks
|
|
def _filter_events_for_client(self, user_id, room_id, events):
|
|
states = yield self.store.get_state_for_events(
|
|
room_id, [e.event_id for e in events],
|
|
)
|
|
|
|
events_and_states = zip(events, states)
|
|
|
|
def allowed(event_and_state):
|
|
event, state = event_and_state
|
|
|
|
if event.type == EventTypes.RoomHistoryVisibility:
|
|
return True
|
|
|
|
membership_ev = state.get((EventTypes.Member, user_id), None)
|
|
if membership_ev:
|
|
membership = membership_ev.membership
|
|
else:
|
|
membership = Membership.LEAVE
|
|
|
|
if membership == Membership.JOIN:
|
|
return True
|
|
|
|
history = state.get((EventTypes.RoomHistoryVisibility, ''), None)
|
|
if history:
|
|
visibility = history.content.get("history_visibility", "shared")
|
|
else:
|
|
visibility = "shared"
|
|
|
|
if visibility == "public":
|
|
return True
|
|
elif visibility == "shared":
|
|
return True
|
|
elif visibility == "joined":
|
|
return membership == Membership.JOIN
|
|
elif visibility == "invited":
|
|
return membership == Membership.INVITE
|
|
|
|
return True
|
|
|
|
events_and_states = filter(allowed, events_and_states)
|
|
defer.returnValue([
|
|
ev
|
|
for ev, _ in events_and_states
|
|
])
|
|
|
|
@defer.inlineCallbacks
|
|
def create_and_send_event(self, event_dict, ratelimit=True,
|
|
client=None, txn_id=None):
|
|
""" Given a dict from a client, create and handle a new event.
|
|
|
|
Creates an FrozenEvent object, filling out auth_events, prev_events,
|
|
etc.
|
|
|
|
Adds display names to Join membership events.
|
|
|
|
Persists and notifies local clients and federation.
|
|
|
|
Args:
|
|
event_dict (dict): An entire event
|
|
"""
|
|
builder = self.event_builder_factory.new(event_dict)
|
|
|
|
self.validator.validate_new(builder)
|
|
|
|
if ratelimit:
|
|
self.ratelimit(builder.user_id)
|
|
# TODO(paul): Why does 'event' not have a 'user' object?
|
|
user = UserID.from_string(builder.user_id)
|
|
assert self.hs.is_mine(user), "User must be our own: %s" % (user,)
|
|
|
|
if builder.type == EventTypes.Member:
|
|
membership = builder.content.get("membership", None)
|
|
if membership == Membership.JOIN:
|
|
joinee = UserID.from_string(builder.state_key)
|
|
# If event doesn't include a display name, add one.
|
|
yield self.distributor.fire(
|
|
"collect_presencelike_data",
|
|
joinee,
|
|
builder.content
|
|
)
|
|
|
|
if client is not None:
|
|
if client.token_id is not None:
|
|
builder.internal_metadata.token_id = client.token_id
|
|
if client.device_id is not None:
|
|
builder.internal_metadata.device_id = client.device_id
|
|
|
|
if txn_id is not None:
|
|
builder.internal_metadata.txn_id = txn_id
|
|
|
|
event, context = yield self._create_new_client_event(
|
|
builder=builder,
|
|
)
|
|
|
|
if event.type == EventTypes.Member:
|
|
member_handler = self.hs.get_handlers().room_member_handler
|
|
yield member_handler.change_membership(event, context)
|
|
else:
|
|
yield self.handle_new_client_event(
|
|
event=event,
|
|
context=context,
|
|
)
|
|
|
|
if event.type == EventTypes.Message:
|
|
presence = self.hs.get_handlers().presence_handler
|
|
with PreserveLoggingContext():
|
|
presence.bump_presence_active_time(user)
|
|
|
|
defer.returnValue(event)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_room_data(self, user_id=None, room_id=None,
|
|
event_type=None, state_key=""):
|
|
""" Get data from a room.
|
|
|
|
Args:
|
|
event : The room path event
|
|
Returns:
|
|
The path data content.
|
|
Raises:
|
|
SynapseError if something went wrong.
|
|
"""
|
|
have_joined = yield self.auth.check_joined_room(room_id, user_id)
|
|
if not have_joined:
|
|
raise RoomError(403, "User not in room.")
|
|
|
|
data = yield self.state_handler.get_current_state(
|
|
room_id, event_type, state_key
|
|
)
|
|
defer.returnValue(data)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_feedback(self, event_id):
|
|
# yield self.auth.check_joined_room(room_id, user_id)
|
|
|
|
# Pull out the feedback from the db
|
|
fb = yield self.store.get_feedback(event_id)
|
|
|
|
if fb:
|
|
defer.returnValue(fb)
|
|
defer.returnValue(None)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_state_events(self, user_id, room_id):
|
|
"""Retrieve all state events for a given room.
|
|
|
|
Args:
|
|
user_id(str): The user requesting state events.
|
|
room_id(str): The room ID to get all state events from.
|
|
Returns:
|
|
A list of dicts representing state events. [{}, {}, {}]
|
|
"""
|
|
yield self.auth.check_joined_room(room_id, user_id)
|
|
|
|
# TODO: This is duplicating logic from snapshot_all_rooms
|
|
current_state = yield self.state_handler.get_current_state(room_id)
|
|
now = self.clock.time_msec()
|
|
defer.returnValue(
|
|
[serialize_event(c, now) for c in current_state.values()]
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def snapshot_all_rooms(self, user_id=None, pagin_config=None,
|
|
feedback=False, as_client_event=True):
|
|
"""Retrieve a snapshot of all rooms the user is invited or has joined.
|
|
|
|
This snapshot may include messages for all rooms where the user is
|
|
joined, depending on the pagination config.
|
|
|
|
Args:
|
|
user_id (str): The ID of the user making the request.
|
|
pagin_config (synapse.api.streams.PaginationConfig): The pagination
|
|
config used to determine how many messages *PER ROOM* to return.
|
|
feedback (bool): True to get feedback along with these messages.
|
|
as_client_event (bool): True to get events in client-server format.
|
|
Returns:
|
|
A list of dicts with "room_id" and "membership" keys for all rooms
|
|
the user is currently invited or joined in on. Rooms where the user
|
|
is joined on, may return a "messages" key with messages, depending
|
|
on the specified PaginationConfig.
|
|
"""
|
|
room_list = yield self.store.get_rooms_for_user_where_membership_is(
|
|
user_id=user_id,
|
|
membership_list=[Membership.INVITE, Membership.JOIN]
|
|
)
|
|
|
|
user = UserID.from_string(user_id)
|
|
|
|
rooms_ret = []
|
|
|
|
now_token = yield self.hs.get_event_sources().get_current_token()
|
|
|
|
presence_stream = self.hs.get_event_sources().sources["presence"]
|
|
pagination_config = PaginationConfig(from_token=now_token)
|
|
presence, _ = yield presence_stream.get_pagination_rows(
|
|
user, pagination_config.get_source_config("presence"), None
|
|
)
|
|
|
|
receipt_stream = self.hs.get_event_sources().sources["receipt"]
|
|
receipt, _ = yield receipt_stream.get_pagination_rows(
|
|
user, pagination_config.get_source_config("receipt"), None
|
|
)
|
|
|
|
public_room_ids = yield self.store.get_public_room_ids()
|
|
|
|
limit = pagin_config.limit
|
|
if limit is None:
|
|
limit = 10
|
|
|
|
@defer.inlineCallbacks
|
|
def handle_room(event):
|
|
d = {
|
|
"room_id": event.room_id,
|
|
"membership": event.membership,
|
|
"visibility": (
|
|
"public" if event.room_id in public_room_ids
|
|
else "private"
|
|
),
|
|
}
|
|
|
|
if event.membership == Membership.INVITE:
|
|
d["inviter"] = event.sender
|
|
|
|
rooms_ret.append(d)
|
|
|
|
if event.membership != Membership.JOIN:
|
|
return
|
|
try:
|
|
(messages, token), current_state = yield defer.gatherResults(
|
|
[
|
|
self.store.get_recent_events_for_room(
|
|
event.room_id,
|
|
limit=limit,
|
|
end_token=now_token.room_key,
|
|
),
|
|
self.state_handler.get_current_state(
|
|
event.room_id
|
|
),
|
|
]
|
|
).addErrback(unwrapFirstError)
|
|
|
|
messages = yield self._filter_events_for_client(
|
|
user_id, event.room_id, messages
|
|
)
|
|
|
|
start_token = now_token.copy_and_replace("room_key", token[0])
|
|
end_token = now_token.copy_and_replace("room_key", token[1])
|
|
time_now = self.clock.time_msec()
|
|
|
|
d["messages"] = {
|
|
"chunk": [
|
|
serialize_event(m, time_now, as_client_event)
|
|
for m in messages
|
|
],
|
|
"start": start_token.to_string(),
|
|
"end": end_token.to_string(),
|
|
}
|
|
|
|
d["state"] = [
|
|
serialize_event(c, time_now, as_client_event)
|
|
for c in current_state.values()
|
|
]
|
|
except:
|
|
logger.exception("Failed to get snapshot")
|
|
|
|
yield defer.gatherResults(
|
|
[handle_room(e) for e in room_list],
|
|
consumeErrors=True
|
|
).addErrback(unwrapFirstError)
|
|
|
|
ret = {
|
|
"rooms": rooms_ret,
|
|
"presence": presence,
|
|
"receipts": receipt,
|
|
"end": now_token.to_string(),
|
|
}
|
|
|
|
defer.returnValue(ret)
|
|
|
|
@defer.inlineCallbacks
|
|
def room_initial_sync(self, user_id, room_id, pagin_config=None,
|
|
feedback=False):
|
|
current_state = yield self.state.get_current_state(
|
|
room_id=room_id,
|
|
)
|
|
|
|
yield self.auth.check_joined_room(
|
|
room_id, user_id,
|
|
current_state=current_state
|
|
)
|
|
|
|
# TODO(paul): I wish I was called with user objects not user_id
|
|
# strings...
|
|
auth_user = UserID.from_string(user_id)
|
|
|
|
# TODO: These concurrently
|
|
time_now = self.clock.time_msec()
|
|
state = [
|
|
serialize_event(x, time_now)
|
|
for x in current_state.values()
|
|
]
|
|
|
|
member_event = current_state.get((EventTypes.Member, user_id,))
|
|
|
|
now_token = yield self.hs.get_event_sources().get_current_token()
|
|
|
|
limit = pagin_config.limit if pagin_config else None
|
|
if limit is None:
|
|
limit = 10
|
|
|
|
room_members = [
|
|
m for m in current_state.values()
|
|
if m.type == EventTypes.Member
|
|
and m.content["membership"] == Membership.JOIN
|
|
]
|
|
|
|
presence_handler = self.hs.get_handlers().presence_handler
|
|
|
|
@defer.inlineCallbacks
|
|
def get_presence():
|
|
presence_defs = yield defer.DeferredList(
|
|
[
|
|
presence_handler.get_state(
|
|
target_user=UserID.from_string(m.user_id),
|
|
auth_user=auth_user,
|
|
as_event=True,
|
|
check_auth=False,
|
|
)
|
|
for m in room_members
|
|
],
|
|
consumeErrors=True,
|
|
)
|
|
|
|
defer.returnValue([p for success, p in presence_defs if success])
|
|
|
|
receipts_handler = self.hs.get_handlers().receipts_handler
|
|
|
|
presence, receipts, (messages, token) = yield defer.gatherResults(
|
|
[
|
|
get_presence(),
|
|
receipts_handler.get_receipts_for_room(room_id, now_token.receipt_key),
|
|
self.store.get_recent_events_for_room(
|
|
room_id,
|
|
limit=limit,
|
|
end_token=now_token.room_key,
|
|
)
|
|
],
|
|
consumeErrors=True,
|
|
).addErrback(unwrapFirstError)
|
|
|
|
messages = yield self._filter_events_for_client(
|
|
user_id, room_id, messages
|
|
)
|
|
|
|
start_token = now_token.copy_and_replace("room_key", token[0])
|
|
end_token = now_token.copy_and_replace("room_key", token[1])
|
|
|
|
time_now = self.clock.time_msec()
|
|
|
|
defer.returnValue({
|
|
"membership": member_event.membership,
|
|
"room_id": room_id,
|
|
"messages": {
|
|
"chunk": [serialize_event(m, time_now) for m in messages],
|
|
"start": start_token.to_string(),
|
|
"end": end_token.to_string(),
|
|
},
|
|
"state": state,
|
|
"presence": presence,
|
|
"receipts": receipts,
|
|
})
|