mirror of
https://mau.dev/maunium/synapse.git
synced 2024-10-01 01:36:05 -04:00
d04e2ff3a4
If a client didn't specify a from token when paginating backwards synapse would attempt to query the (global) maximum topological token. This a) doesn't make much sense since they're room specific and b) there are no indices that lets postgres do this efficiently.
495 lines
15 KiB
Python
495 lines
15 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014 - 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.
|
|
|
|
"""Contains functions for performing events on rooms."""
|
|
from twisted.internet import defer
|
|
|
|
from ._base import BaseHandler
|
|
|
|
from synapse.types import UserID, RoomAlias, RoomID, RoomStreamToken
|
|
from synapse.api.constants import (
|
|
EventTypes, JoinRules, RoomCreationPreset
|
|
)
|
|
from synapse.api.errors import AuthError, StoreError, SynapseError
|
|
from synapse.util import stringutils
|
|
from synapse.visibility import filter_events_for_client
|
|
|
|
from collections import OrderedDict
|
|
|
|
import logging
|
|
import math
|
|
import string
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
id_server_scheme = "https://"
|
|
|
|
|
|
class RoomCreationHandler(BaseHandler):
|
|
|
|
PRESETS_DICT = {
|
|
RoomCreationPreset.PRIVATE_CHAT: {
|
|
"join_rules": JoinRules.INVITE,
|
|
"history_visibility": "shared",
|
|
"original_invitees_have_ops": False,
|
|
},
|
|
RoomCreationPreset.TRUSTED_PRIVATE_CHAT: {
|
|
"join_rules": JoinRules.INVITE,
|
|
"history_visibility": "shared",
|
|
"original_invitees_have_ops": True,
|
|
},
|
|
RoomCreationPreset.PUBLIC_CHAT: {
|
|
"join_rules": JoinRules.PUBLIC,
|
|
"history_visibility": "shared",
|
|
"original_invitees_have_ops": False,
|
|
},
|
|
}
|
|
|
|
@defer.inlineCallbacks
|
|
def create_room(self, requester, config):
|
|
""" Creates a new room.
|
|
|
|
Args:
|
|
requester (Requester): The user who requested the room creation.
|
|
config (dict) : A dict of configuration options.
|
|
Returns:
|
|
The new room ID.
|
|
Raises:
|
|
SynapseError if the room ID couldn't be stored, or something went
|
|
horribly wrong.
|
|
"""
|
|
user_id = requester.user.to_string()
|
|
|
|
self.ratelimit(requester)
|
|
|
|
if "room_alias_name" in config:
|
|
for wchar in string.whitespace:
|
|
if wchar in config["room_alias_name"]:
|
|
raise SynapseError(400, "Invalid characters in room alias")
|
|
|
|
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,))
|
|
|
|
invite_3pid_list = config.get("invite_3pid", [])
|
|
|
|
visibility = config.get("visibility", None)
|
|
is_public = visibility == "public"
|
|
|
|
# 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],
|
|
)
|
|
|
|
preset_config = config.get(
|
|
"preset",
|
|
RoomCreationPreset.PRIVATE_CHAT
|
|
if visibility == "private"
|
|
else RoomCreationPreset.PUBLIC_CHAT
|
|
)
|
|
|
|
raw_initial_state = config.get("initial_state", [])
|
|
|
|
initial_state = OrderedDict()
|
|
for val in raw_initial_state:
|
|
initial_state[(val["type"], val.get("state_key", ""))] = val["content"]
|
|
|
|
creation_content = config.get("creation_content", {})
|
|
|
|
msg_handler = self.hs.get_handlers().message_handler
|
|
room_member_handler = self.hs.get_handlers().room_member_handler
|
|
|
|
yield self._send_events_for_new_room(
|
|
requester,
|
|
room_id,
|
|
msg_handler,
|
|
room_member_handler,
|
|
preset_config=preset_config,
|
|
invite_list=invite_list,
|
|
initial_state=initial_state,
|
|
creation_content=creation_content,
|
|
room_alias=room_alias,
|
|
)
|
|
|
|
if "name" in config:
|
|
name = config["name"]
|
|
yield msg_handler.create_and_send_nonmember_event(
|
|
requester,
|
|
{
|
|
"type": EventTypes.Name,
|
|
"room_id": room_id,
|
|
"sender": user_id,
|
|
"state_key": "",
|
|
"content": {"name": name},
|
|
},
|
|
ratelimit=False)
|
|
|
|
if "topic" in config:
|
|
topic = config["topic"]
|
|
yield msg_handler.create_and_send_nonmember_event(
|
|
requester,
|
|
{
|
|
"type": EventTypes.Topic,
|
|
"room_id": room_id,
|
|
"sender": user_id,
|
|
"state_key": "",
|
|
"content": {"topic": topic},
|
|
},
|
|
ratelimit=False)
|
|
|
|
content = {}
|
|
is_direct = config.get("is_direct", None)
|
|
if is_direct:
|
|
content["is_direct"] = is_direct
|
|
|
|
for invitee in invite_list:
|
|
yield room_member_handler.update_membership(
|
|
requester,
|
|
UserID.from_string(invitee),
|
|
room_id,
|
|
"invite",
|
|
ratelimit=False,
|
|
content=content,
|
|
)
|
|
|
|
for invite_3pid in invite_3pid_list:
|
|
id_server = invite_3pid["id_server"]
|
|
address = invite_3pid["address"]
|
|
medium = invite_3pid["medium"]
|
|
yield self.hs.get_handlers().room_member_handler.do_3pid_invite(
|
|
room_id,
|
|
requester.user,
|
|
medium,
|
|
address,
|
|
id_server,
|
|
requester,
|
|
txn_id=None,
|
|
)
|
|
|
|
result = {"room_id": room_id}
|
|
|
|
if room_alias:
|
|
result["room_alias"] = room_alias.to_string()
|
|
yield directory_handler.send_room_alias_update_event(
|
|
requester, user_id, room_id
|
|
)
|
|
|
|
defer.returnValue(result)
|
|
|
|
@defer.inlineCallbacks
|
|
def _send_events_for_new_room(
|
|
self,
|
|
creator, # A Requester object.
|
|
room_id,
|
|
msg_handler,
|
|
room_member_handler,
|
|
preset_config,
|
|
invite_list,
|
|
initial_state,
|
|
creation_content,
|
|
room_alias
|
|
):
|
|
def create(etype, content, **kwargs):
|
|
e = {
|
|
"type": etype,
|
|
"content": content,
|
|
}
|
|
|
|
e.update(event_keys)
|
|
e.update(kwargs)
|
|
|
|
return e
|
|
|
|
@defer.inlineCallbacks
|
|
def send(etype, content, **kwargs):
|
|
event = create(etype, content, **kwargs)
|
|
yield msg_handler.create_and_send_nonmember_event(
|
|
creator,
|
|
event,
|
|
ratelimit=False
|
|
)
|
|
|
|
config = RoomCreationHandler.PRESETS_DICT[preset_config]
|
|
|
|
creator_id = creator.user.to_string()
|
|
|
|
event_keys = {
|
|
"room_id": room_id,
|
|
"sender": creator_id,
|
|
"state_key": "",
|
|
}
|
|
|
|
creation_content.update({"creator": creator_id})
|
|
yield send(
|
|
etype=EventTypes.Create,
|
|
content=creation_content,
|
|
)
|
|
|
|
yield room_member_handler.update_membership(
|
|
creator,
|
|
creator.user,
|
|
room_id,
|
|
"join",
|
|
ratelimit=False,
|
|
)
|
|
|
|
if (EventTypes.PowerLevels, '') not in initial_state:
|
|
power_level_content = {
|
|
"users": {
|
|
creator_id: 100,
|
|
},
|
|
"users_default": 0,
|
|
"events": {
|
|
EventTypes.Name: 50,
|
|
EventTypes.PowerLevels: 100,
|
|
EventTypes.RoomHistoryVisibility: 100,
|
|
EventTypes.CanonicalAlias: 50,
|
|
EventTypes.RoomAvatar: 50,
|
|
},
|
|
"events_default": 0,
|
|
"state_default": 50,
|
|
"ban": 50,
|
|
"kick": 50,
|
|
"redact": 50,
|
|
"invite": 0,
|
|
}
|
|
|
|
if config["original_invitees_have_ops"]:
|
|
for invitee in invite_list:
|
|
power_level_content["users"][invitee] = 100
|
|
|
|
yield send(
|
|
etype=EventTypes.PowerLevels,
|
|
content=power_level_content,
|
|
)
|
|
|
|
if room_alias and (EventTypes.CanonicalAlias, '') not in initial_state:
|
|
yield send(
|
|
etype=EventTypes.CanonicalAlias,
|
|
content={"alias": room_alias.to_string()},
|
|
)
|
|
|
|
if (EventTypes.JoinRules, '') not in initial_state:
|
|
yield send(
|
|
etype=EventTypes.JoinRules,
|
|
content={"join_rule": config["join_rules"]},
|
|
)
|
|
|
|
if (EventTypes.RoomHistoryVisibility, '') not in initial_state:
|
|
yield send(
|
|
etype=EventTypes.RoomHistoryVisibility,
|
|
content={"history_visibility": config["history_visibility"]}
|
|
)
|
|
|
|
for (etype, state_key), content in initial_state.items():
|
|
yield send(
|
|
etype=etype,
|
|
state_key=state_key,
|
|
content=content,
|
|
)
|
|
|
|
|
|
class RoomContextHandler(BaseHandler):
|
|
@defer.inlineCallbacks
|
|
def get_event_context(self, user, room_id, event_id, limit, is_guest):
|
|
"""Retrieves events, pagination tokens and state around a given event
|
|
in a room.
|
|
|
|
Args:
|
|
user (UserID)
|
|
room_id (str)
|
|
event_id (str)
|
|
limit (int): The maximum number of events to return in total
|
|
(excluding state).
|
|
|
|
Returns:
|
|
dict, or None if the event isn't found
|
|
"""
|
|
before_limit = math.floor(limit / 2.)
|
|
after_limit = limit - before_limit
|
|
|
|
now_token = yield self.hs.get_event_sources().get_current_token()
|
|
|
|
def filter_evts(events):
|
|
return filter_events_for_client(
|
|
self.store,
|
|
user.to_string(),
|
|
events,
|
|
is_peeking=is_guest
|
|
)
|
|
|
|
event = yield self.store.get_event(event_id, get_prev_content=True,
|
|
allow_none=True)
|
|
if not event:
|
|
defer.returnValue(None)
|
|
return
|
|
|
|
filtered = yield(filter_evts([event]))
|
|
if not filtered:
|
|
raise AuthError(
|
|
403,
|
|
"You don't have permission to access that event."
|
|
)
|
|
|
|
results = yield self.store.get_events_around(
|
|
room_id, event_id, before_limit, after_limit
|
|
)
|
|
|
|
results["events_before"] = yield filter_evts(results["events_before"])
|
|
results["events_after"] = yield filter_evts(results["events_after"])
|
|
results["event"] = event
|
|
|
|
if results["events_after"]:
|
|
last_event_id = results["events_after"][-1].event_id
|
|
else:
|
|
last_event_id = event_id
|
|
|
|
state = yield self.store.get_state_for_events(
|
|
[last_event_id], None
|
|
)
|
|
results["state"] = state[last_event_id].values()
|
|
|
|
results["start"] = now_token.copy_and_replace(
|
|
"room_key", results["start"]
|
|
).to_string()
|
|
|
|
results["end"] = now_token.copy_and_replace(
|
|
"room_key", results["end"]
|
|
).to_string()
|
|
|
|
defer.returnValue(results)
|
|
|
|
|
|
class RoomEventSource(object):
|
|
def __init__(self, hs):
|
|
self.store = hs.get_datastore()
|
|
|
|
@defer.inlineCallbacks
|
|
def get_new_events(
|
|
self,
|
|
user,
|
|
from_key,
|
|
limit,
|
|
room_ids,
|
|
is_guest,
|
|
):
|
|
# We just ignore the key for now.
|
|
|
|
to_key = yield self.get_current_key()
|
|
|
|
from_token = RoomStreamToken.parse(from_key)
|
|
if from_token.topological:
|
|
logger.warn("Stream has topological part!!!! %r", from_key)
|
|
from_key = "s%s" % (from_token.stream,)
|
|
|
|
app_service = self.store.get_app_service_by_user_id(
|
|
user.to_string()
|
|
)
|
|
if app_service:
|
|
events, end_key = yield self.store.get_appservice_room_stream(
|
|
service=app_service,
|
|
from_key=from_key,
|
|
to_key=to_key,
|
|
limit=limit,
|
|
)
|
|
else:
|
|
room_events = yield self.store.get_membership_changes_for_user(
|
|
user.to_string(), from_key, to_key
|
|
)
|
|
|
|
room_to_events = yield self.store.get_room_events_stream_for_rooms(
|
|
room_ids=room_ids,
|
|
from_key=from_key,
|
|
to_key=to_key,
|
|
limit=limit or 10,
|
|
order='ASC',
|
|
)
|
|
|
|
events = list(room_events)
|
|
events.extend(e for evs, _ in room_to_events.values() for e in evs)
|
|
|
|
events.sort(key=lambda e: e.internal_metadata.order)
|
|
|
|
if limit:
|
|
events[:] = events[:limit]
|
|
|
|
if events:
|
|
end_key = events[-1].internal_metadata.after
|
|
else:
|
|
end_key = to_key
|
|
|
|
defer.returnValue((events, end_key))
|
|
|
|
def get_current_key(self):
|
|
return self.store.get_room_events_max_id()
|
|
|
|
def get_current_key_for_room(self, room_id):
|
|
return self.store.get_room_events_max_id(room_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,
|
|
)
|
|
|
|
defer.returnValue((events, next_key))
|