586 lines
20 KiB
Python
586 lines
20 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.
|
|
|
|
"""Contains functions for performing events on rooms."""
|
|
from twisted.internet import defer
|
|
|
|
from synapse.types import UserID, RoomAlias, RoomID
|
|
from synapse.api.constants import EventTypes, Membership, JoinRules
|
|
from synapse.api.errors import StoreError, SynapseError
|
|
from synapse.util import stringutils
|
|
from synapse.util.async import run_on_reactor
|
|
from ._base import BaseHandler
|
|
|
|
import logging
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class RoomCreationHandler(BaseHandler):
|
|
|
|
@defer.inlineCallbacks
|
|
def create_room(self, user_id, room_id, config):
|
|
""" Creates a new room.
|
|
|
|
Args:
|
|
user_id (str): The ID of the user creating the new room.
|
|
room_id (str): The proposed ID for the new room. Can be None, in
|
|
which case one will be created for you.
|
|
config (dict) : A dict of configuration options.
|
|
Returns:
|
|
The new room ID.
|
|
Raises:
|
|
SynapseError if the room ID was taken, couldn't be stored, or
|
|
something went horribly wrong.
|
|
"""
|
|
self.ratelimit(user_id)
|
|
|
|
if "room_alias_name" in config:
|
|
room_alias = RoomAlias.create(
|
|
config["room_alias_name"],
|
|
self.hs.hostname,
|
|
)
|
|
mapping = yield self.store.get_association_from_room_alias(
|
|
room_alias
|
|
)
|
|
|
|
if mapping:
|
|
raise SynapseError(400, "Room alias already taken")
|
|
else:
|
|
room_alias = None
|
|
|
|
invite_list = config.get("invite", [])
|
|
for i in invite_list:
|
|
try:
|
|
UserID.from_string(i)
|
|
except:
|
|
raise SynapseError(400, "Invalid user_id: %s" % (i,))
|
|
|
|
is_public = config.get("visibility", None) == "public"
|
|
|
|
if room_id:
|
|
# Ensure room_id is the correct type
|
|
room_id_obj = RoomID.from_string(room_id)
|
|
if not self.hs.is_mine(room_id_obj):
|
|
raise SynapseError(400, "Room id must be local")
|
|
|
|
yield self.store.store_room(
|
|
room_id=room_id,
|
|
room_creator_user_id=user_id,
|
|
is_public=is_public
|
|
)
|
|
else:
|
|
# autogen room IDs and try to create it. We may clash, so just
|
|
# try a few times till one goes through, giving up eventually.
|
|
attempts = 0
|
|
room_id = None
|
|
while attempts < 5:
|
|
try:
|
|
random_string = stringutils.random_string(18)
|
|
gen_room_id = RoomID.create(
|
|
random_string,
|
|
self.hs.hostname,
|
|
)
|
|
yield self.store.store_room(
|
|
room_id=gen_room_id.to_string(),
|
|
room_creator_user_id=user_id,
|
|
is_public=is_public
|
|
)
|
|
room_id = gen_room_id.to_string()
|
|
break
|
|
except StoreError:
|
|
attempts += 1
|
|
if not room_id:
|
|
raise StoreError(500, "Couldn't generate a room ID.")
|
|
|
|
if room_alias:
|
|
directory_handler = self.hs.get_handlers().directory_handler
|
|
yield directory_handler.create_association(
|
|
user_id=user_id,
|
|
room_id=room_id,
|
|
room_alias=room_alias,
|
|
servers=[self.hs.hostname],
|
|
)
|
|
|
|
user = UserID.from_string(user_id)
|
|
creation_events = self._create_events_for_new_room(
|
|
user, room_id, is_public=is_public
|
|
)
|
|
|
|
msg_handler = self.hs.get_handlers().message_handler
|
|
|
|
for event in creation_events:
|
|
yield msg_handler.create_and_send_event(event)
|
|
|
|
if "name" in config:
|
|
name = config["name"]
|
|
yield msg_handler.create_and_send_event({
|
|
"type": EventTypes.Name,
|
|
"room_id": room_id,
|
|
"sender": user_id,
|
|
"state_key": "",
|
|
"content": {"name": name},
|
|
})
|
|
|
|
if "topic" in config:
|
|
topic = config["topic"]
|
|
yield msg_handler.create_and_send_event({
|
|
"type": EventTypes.Topic,
|
|
"room_id": room_id,
|
|
"sender": user_id,
|
|
"state_key": "",
|
|
"content": {"topic": topic},
|
|
})
|
|
|
|
for invitee in invite_list:
|
|
yield msg_handler.create_and_send_event({
|
|
"type": EventTypes.Member,
|
|
"state_key": invitee,
|
|
"room_id": room_id,
|
|
"sender": user_id,
|
|
"content": {"membership": Membership.INVITE},
|
|
})
|
|
|
|
result = {"room_id": room_id}
|
|
|
|
if room_alias:
|
|
result["room_alias"] = room_alias.to_string()
|
|
yield directory_handler.send_room_alias_update_event(
|
|
user_id, room_id
|
|
)
|
|
|
|
defer.returnValue(result)
|
|
|
|
def _create_events_for_new_room(self, creator, room_id, is_public=False):
|
|
creator_id = creator.to_string()
|
|
|
|
event_keys = {
|
|
"room_id": room_id,
|
|
"sender": creator_id,
|
|
"state_key": "",
|
|
}
|
|
|
|
def create(etype, content, **kwargs):
|
|
e = {
|
|
"type": etype,
|
|
"content": content,
|
|
}
|
|
|
|
e.update(event_keys)
|
|
e.update(kwargs)
|
|
|
|
return e
|
|
|
|
creation_event = create(
|
|
etype=EventTypes.Create,
|
|
content={"creator": creator.to_string()},
|
|
)
|
|
|
|
join_event = create(
|
|
etype=EventTypes.Member,
|
|
state_key=creator_id,
|
|
content={
|
|
"membership": Membership.JOIN,
|
|
},
|
|
)
|
|
|
|
power_levels_event = create(
|
|
etype=EventTypes.PowerLevels,
|
|
content={
|
|
"users": {
|
|
creator.to_string(): 100,
|
|
},
|
|
"users_default": 0,
|
|
"events": {
|
|
EventTypes.Name: 100,
|
|
EventTypes.PowerLevels: 100,
|
|
},
|
|
"events_default": 0,
|
|
"state_default": 50,
|
|
"ban": 50,
|
|
"kick": 50,
|
|
"redact": 50
|
|
},
|
|
)
|
|
|
|
join_rule = JoinRules.PUBLIC if is_public else JoinRules.INVITE
|
|
join_rules_event = create(
|
|
etype=EventTypes.JoinRules,
|
|
content={"join_rule": join_rule},
|
|
)
|
|
|
|
return [
|
|
creation_event,
|
|
join_event,
|
|
power_levels_event,
|
|
join_rules_event,
|
|
]
|
|
|
|
|
|
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 get_room_members_as_pagination_chunk(self, room_id=None, user_id=None,
|
|
limit=0, start_tok=None,
|
|
end_tok=None):
|
|
"""Retrieve a list of room members in the room.
|
|
|
|
Args:
|
|
room_id (str): The room to get the member list for.
|
|
user_id (str): The ID of the user making the request.
|
|
limit (int): The max number of members to return.
|
|
start_tok (str): Optional. The start token if known.
|
|
end_tok (str): Optional. The end token if known.
|
|
Returns:
|
|
dict: A Pagination streamable dict.
|
|
Raises:
|
|
SynapseError if something goes wrong.
|
|
"""
|
|
yield self.auth.check_joined_room(room_id, user_id)
|
|
|
|
member_list = yield self.store.get_room_members(room_id=room_id)
|
|
event_list = [
|
|
self.hs.serialize_event(entry)
|
|
for entry in member_list
|
|
]
|
|
chunk_data = {
|
|
"start": "START", # FIXME (erikj): START is no longer valid
|
|
"end": "END",
|
|
"chunk": event_list
|
|
}
|
|
# TODO honor Pagination stream params
|
|
# TODO snapshot this list to return on subsequent requests when
|
|
# paginating
|
|
defer.returnValue(chunk_data)
|
|
|
|
@defer.inlineCallbacks
|
|
def get_room_member(self, room_id, member_user_id, auth_user_id):
|
|
"""Retrieve a room member from a room.
|
|
|
|
Args:
|
|
room_id : The room the member is in.
|
|
member_user_id : The member's user ID
|
|
auth_user_id : The user ID of the user making this request.
|
|
Returns:
|
|
The room member, or None if this member does not exist.
|
|
Raises:
|
|
SynapseError if something goes wrong.
|
|
"""
|
|
yield self.auth.check_joined_room(room_id, auth_user_id)
|
|
|
|
member = yield self.store.get_room_member(user_id=member_user_id,
|
|
room_id=room_id)
|
|
defer.returnValue(member)
|
|
|
|
@defer.inlineCallbacks
|
|
def change_membership(self, event, context, do_auth=True):
|
|
""" Change the membership status of a user in a room.
|
|
|
|
Args:
|
|
event (SynapseEvent): The membership event
|
|
Raises:
|
|
SynapseError if there was a problem changing the membership.
|
|
"""
|
|
target_user_id = event.state_key
|
|
|
|
prev_state = context.current_state.get(
|
|
(EventTypes.Member, target_user_id),
|
|
None
|
|
)
|
|
|
|
room_id = event.room_id
|
|
|
|
# If we're trying to join a room then we have to do this differently
|
|
# if this HS is not currently in the room, i.e. we have to do the
|
|
# invite/join dance.
|
|
if event.membership == Membership.JOIN:
|
|
yield self._do_join(event, context, do_auth=do_auth)
|
|
else:
|
|
# This is not a JOIN, so we can handle it normally.
|
|
|
|
# FIXME: This isn't idempotency.
|
|
if prev_state and prev_state.membership == event.membership:
|
|
# double same action, treat this event as a NOOP.
|
|
defer.returnValue({})
|
|
return
|
|
|
|
yield self._do_local_membership_update(
|
|
event,
|
|
membership=event.content["membership"],
|
|
context=context,
|
|
do_auth=do_auth,
|
|
)
|
|
|
|
if prev_state and prev_state.membership == Membership.JOIN:
|
|
user = UserID.from_string(event.user_id)
|
|
self.distributor.fire(
|
|
"user_left_room", user=user, room_id=event.room_id
|
|
)
|
|
|
|
defer.returnValue({"room_id": room_id})
|
|
|
|
@defer.inlineCallbacks
|
|
def join_room_alias(self, joinee, room_alias, do_auth=True, content={}):
|
|
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"]
|
|
hosts = mapping["servers"]
|
|
if not hosts:
|
|
raise SynapseError(404, "No known servers")
|
|
|
|
host = hosts[0]
|
|
|
|
# If event doesn't include a display name, add one.
|
|
yield self.distributor.fire(
|
|
"collect_presencelike_data", joinee, content
|
|
)
|
|
|
|
content.update({"membership": Membership.JOIN})
|
|
builder = self.event_builder_factory.new({
|
|
"type": EventTypes.Member,
|
|
"state_key": joinee.to_string(),
|
|
"room_id": room_id,
|
|
"sender": joinee.to_string(),
|
|
"membership": Membership.JOIN,
|
|
"content": content,
|
|
})
|
|
event, context = yield self._create_new_client_event(builder)
|
|
|
|
yield self._do_join(event, context, room_host=host, do_auth=True)
|
|
|
|
defer.returnValue({"room_id": room_id})
|
|
|
|
@defer.inlineCallbacks
|
|
def _do_join(self, event, context, room_host=None, do_auth=True):
|
|
joinee = UserID.from_string(event.state_key)
|
|
# room_id = RoomID.from_string(event.room_id, self.hs)
|
|
room_id = event.room_id
|
|
|
|
# XXX: 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.
|
|
|
|
is_host_in_room = yield self.auth.check_host_in_room(
|
|
event.room_id,
|
|
self.hs.hostname
|
|
)
|
|
if not is_host_in_room:
|
|
# is *anyone* in the room?
|
|
room_member_keys = [
|
|
v for (k, v) in context.current_state.keys() if (
|
|
k == "m.room.member"
|
|
)
|
|
]
|
|
if len(room_member_keys) == 0:
|
|
# has the room been created so we can join it?
|
|
create_event = context.current_state.get(("m.room.create", ""))
|
|
if create_event:
|
|
is_host_in_room = True
|
|
|
|
if is_host_in_room:
|
|
should_do_dance = False
|
|
elif room_host: # TODO: Shouldn't this be remote_room_host?
|
|
should_do_dance = True
|
|
else:
|
|
# TODO(markjh): get prev_state from snapshot
|
|
prev_state = yield self.store.get_room_member(
|
|
joinee.to_string(), room_id
|
|
)
|
|
|
|
if prev_state and prev_state.membership == Membership.INVITE:
|
|
inviter = UserID.from_string(prev_state.user_id)
|
|
|
|
should_do_dance = not self.hs.is_mine(inviter)
|
|
room_host = inviter.domain
|
|
else:
|
|
# return the same error as join_room_alias does
|
|
raise SynapseError(404, "No known servers")
|
|
|
|
if should_do_dance:
|
|
handler = self.hs.get_handlers().federation_handler
|
|
yield handler.do_invite_join(
|
|
room_host,
|
|
room_id,
|
|
event.user_id,
|
|
event.get_dict()["content"], # FIXME To get a non-frozen dict
|
|
context
|
|
)
|
|
else:
|
|
logger.debug("Doing normal join")
|
|
|
|
yield self._do_local_membership_update(
|
|
event,
|
|
membership=event.content["membership"],
|
|
context=context,
|
|
do_auth=do_auth,
|
|
)
|
|
|
|
user = UserID.from_string(event.user_id)
|
|
yield self.distributor.fire(
|
|
"user_joined_room", user=user, room_id=room_id
|
|
)
|
|
|
|
@defer.inlineCallbacks
|
|
def _should_invite_join(self, room_id, prev_state, do_auth):
|
|
logger.debug("_should_invite_join: room_id: %s", room_id)
|
|
|
|
# XXX: 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.
|
|
|
|
# Only do an invite join dance if a) we were invited,
|
|
# b) the person inviting was from a differnt HS and c) we are
|
|
# not currently in the room
|
|
room_host = None
|
|
if prev_state and prev_state.membership == Membership.INVITE:
|
|
room = yield self.store.get_room(room_id)
|
|
inviter = UserID.from_string(
|
|
prev_state.sender
|
|
)
|
|
|
|
is_remote_invite_join = not self.hs.is_mine(inviter) and not room
|
|
room_host = inviter.domain
|
|
else:
|
|
is_remote_invite_join = False
|
|
|
|
defer.returnValue((is_remote_invite_join, room_host))
|
|
|
|
@defer.inlineCallbacks
|
|
def get_rooms_for_user(self, user, membership_list=[Membership.JOIN]):
|
|
"""Returns a list of roomids that the user has any of the given
|
|
membership states in."""
|
|
rooms = yield self.store.get_rooms_for_user_where_membership_is(
|
|
user_id=user.to_string(), membership_list=membership_list
|
|
)
|
|
|
|
# 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_local_membership_update(self, event, membership, context,
|
|
do_auth):
|
|
yield run_on_reactor()
|
|
|
|
target_user = UserID.from_string(event.state_key)
|
|
|
|
yield self.handle_new_client_event(
|
|
event,
|
|
context,
|
|
extra_users=[target_user],
|
|
suppress_auth=(not do_auth),
|
|
)
|
|
|
|
|
|
class RoomListHandler(BaseHandler):
|
|
|
|
@defer.inlineCallbacks
|
|
def get_public_room_list(self):
|
|
chunk = yield self.store.get_rooms(is_public=True)
|
|
for room in chunk:
|
|
joined_users = yield self.store.get_users_in_room(
|
|
room_id=room["room_id"],
|
|
)
|
|
room["num_joined_members"] = len(joined_users)
|
|
# FIXME (erikj): START is no longer a valid value
|
|
defer.returnValue({"start": "START", "end": "END", "chunk": chunk})
|
|
|
|
|
|
class RoomEventSource(object):
|
|
def __init__(self, hs):
|
|
self.store = hs.get_datastore()
|
|
|
|
@defer.inlineCallbacks
|
|
def get_new_events_for_user(self, user, from_key, limit):
|
|
# We just ignore the key for now.
|
|
|
|
to_key = yield self.get_current_key()
|
|
|
|
events, end_key = yield self.store.get_room_events_stream(
|
|
user_id=user.to_string(),
|
|
from_key=from_key,
|
|
to_key=to_key,
|
|
room_id=None,
|
|
limit=limit,
|
|
)
|
|
|
|
defer.returnValue((events, end_key))
|
|
|
|
def get_current_key(self):
|
|
return self.store.get_room_events_max_id()
|
|
|
|
@defer.inlineCallbacks
|
|
def get_pagination_rows(self, user, config, key):
|
|
events, next_key = yield self.store.paginate_room_events(
|
|
room_id=key,
|
|
from_key=config.from_key,
|
|
to_key=config.to_key,
|
|
direction=config.direction,
|
|
limit=config.limit,
|
|
with_feedback=True
|
|
)
|
|
|
|
defer.returnValue((events, next_key))
|