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# -*- coding: utf-8 -*-
# Copyright 2017 Vector Creations 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.errors import SynapseError
import logging
logger = logging.getLogger(__name__)
# TODO: Validate attestations
# TODO: Allow users to "knock" or simpkly join depending on rules
# TODO: is_priveged flag to users and is_public to users and rooms
# TODO: Roles
# TODO: Audit log for admins (profile updates, membership changes, users who tried
# to join but were rejected, etc)
# TODO: Flairs
# TODO: Add group memebership /sync
def _create_rerouter(name):
def f(self, group_id, *args, **kwargs):
if self.is_mine_id(group_id):
return getattr(self.groups_server_handler, name)(
group_id, *args, **kwargs
)
repl_layer = self.hs.get_replication_layer()
return getattr(repl_layer, name)(group_id, *args, **kwargs)
return f
class GroupsLocalHandler(object):
def __init__(self, hs):
self.hs = hs
self.store = hs.get_datastore()
self.room_list_handler = hs.get_room_list_handler()
self.groups_server_handler = hs.get_groups_server_handler()
self.auth = hs.get_auth()
self.clock = hs.get_clock()
self.keyring = hs.get_keyring()
self.is_mine_id = hs.is_mine_id
self.signing_key = hs.config.signing_key[0]
self.server_name = hs.hostname
self.attestations = hs.get_groups_attestation_signing()
# Ensure attestations get renewed
hs.get_groups_attestation_renewer()
get_group_profile = _create_rerouter("get_group_profile")
get_rooms_in_group = _create_rerouter("get_rooms_in_group")
update_group_summary_room = _create_rerouter("update_group_summary_room")
delete_group_summary_room = _create_rerouter("delete_group_summary_room")
update_group_category = _create_rerouter("update_group_category")
delete_group_category = _create_rerouter("delete_group_category")
get_group_category = _create_rerouter("get_group_category")
get_group_categories = _create_rerouter("get_group_categories")
update_group_summary_user = _create_rerouter("update_group_summary_user")
delete_group_summary_user = _create_rerouter("delete_group_summary_user")
update_group_role = _create_rerouter("update_group_role")
delete_group_role = _create_rerouter("delete_group_role")
get_group_role = _create_rerouter("get_group_role")
get_group_roles = _create_rerouter("get_group_roles")
@defer.inlineCallbacks
def get_group_summary(self, group_id, requester_user_id):
if self.is_mine_id(group_id):
res = yield self.groups_server_handler.get_group_summary(
group_id, requester_user_id
)
defer.returnValue(res)
repl_layer = self.hs.get_replication_layer()
res = yield repl_layer.get_group_summary(group_id, requester_user_id)
chunk = res["users_section"]["users"]
valid_users = []
for entry in chunk:
g_user_id = entry["user_id"]
attestation = entry.pop("attestation")
try:
yield self.attestations.verify_attestation(
attestation,
group_id=group_id,
user_id=g_user_id,
)
valid_users.append(entry)
except Exception as e:
logger.info("Failed to verify user is in group: %s", e)
res["users_section"]["users"] = valid_users
res["users_section"]["users"].sort(key=lambda e: e.get("order", 0))
res["rooms_section"]["rooms"].sort(key=lambda e: e.get("order", 0))
defer.returnValue(res)
def create_group(self, group_id, user_id, content):
logger.info("Asking to create group with ID: %r", group_id)
if self.is_mine_id(group_id):
return self.groups_server_handler.create_group(
group_id, user_id, content
)
repl_layer = self.hs.get_replication_layer()
return repl_layer.create_group(group_id, user_id, content) # TODO
def add_room(self, group_id, user_id, room_id, content):
if self.is_mine_id(group_id):
return self.groups_server_handler.add_room(
group_id, user_id, room_id, content
)
repl_layer = self.hs.get_replication_layer()
return repl_layer.add_room_to_group(group_id, user_id, room_id, content) # TODO
@defer.inlineCallbacks
def get_users_in_group(self, group_id, requester_user_id):
if self.is_mine_id(group_id):
res = yield self.groups_server_handler.get_users_in_group(
group_id, requester_user_id
)
defer.returnValue(res)
repl_layer = self.hs.get_replication_layer()
res = yield repl_layer.get_users_in_group(group_id, requester_user_id) # TODO
chunk = res["chunk"]
valid_entries = []
for entry in chunk:
g_user_id = entry["user_id"]
attestation = entry.pop("attestation")
try:
yield self.attestations.verify_attestation(
attestation,
group_id=group_id,
user_id=g_user_id,
)
valid_entries.append(entry)
except Exception as e:
logger.info("Failed to verify user is in group: %s", e)
res["chunk"] = valid_entries
defer.returnValue(res)
@defer.inlineCallbacks
def join_group(self, group_id, user_id, content):
raise NotImplementedError() # TODO
@defer.inlineCallbacks
def accept_invite(self, group_id, user_id, content):
if self.is_mine_id(group_id):
yield self.groups_server_handler.accept_invite(
group_id, user_id, content
)
local_attestation = None
remote_attestation = None
else:
local_attestation = self.attestations.create_attestation(group_id, user_id)
content["attestation"] = local_attestation
repl_layer = self.hs.get_replication_layer()
res = yield repl_layer.accept_group_invite(group_id, user_id, content)
remote_attestation = res["attestation"]
yield self.attestations.verify_attestation(
remote_attestation,
group_id=group_id,
user_id=user_id,
)
yield self.store.register_user_group_membership(
group_id, user_id,
membership="join",
is_admin=False,
local_attestation=local_attestation,
remote_attestation=remote_attestation,
)
defer.returnValue({})
@defer.inlineCallbacks
def invite(self, group_id, user_id, requester_user_id, config):
content = {
"requester_user_id": requester_user_id,
"config": config,
}
if self.is_mine_id(group_id):
res = yield self.groups_server_handler.invite_to_group(
group_id, user_id, requester_user_id, content,
)
else:
repl_layer = self.hs.get_replication_layer()
res = yield repl_layer.invite_to_group(
group_id, user_id, content,
)
defer.returnValue(res)
@defer.inlineCallbacks
def on_invite(self, group_id, user_id, content):
# TODO: Support auto join and rejection
if not self.is_mine_id(user_id):
raise SynapseError(400, "User not on this server")
local_profile = {}
if "profile" in content:
if "name" in content["profile"]:
local_profile["name"] = content["profile"]["name"]
if "avatar_url" in content["profile"]:
local_profile["avatar_url"] = content["profile"]["avatar_url"]
yield self.store.register_user_group_membership(
group_id, user_id,
membership="invite",
content={"profile": local_profile, "inviter": content["inviter"]},
)
defer.returnValue({"state": "invite"})
@defer.inlineCallbacks
def remove_user_from_group(self, group_id, user_id, requester_user_id, content):
if user_id == requester_user_id:
yield self.store.register_user_group_membership(
group_id, user_id,
membership="leave",
)
# TODO: Should probably remember that we tried to leave so that we can
# retry if the group server is currently down.
if self.is_mine_id(group_id):
res = yield self.groups_server_handler.remove_user_from_group(
group_id, user_id, requester_user_id, content,
)
else:
content["requester_user_id"] = requester_user_id
repl_layer = self.hs.get_replication_layer()
res = yield repl_layer.remove_user_from_group(
group_id, user_id, content
) # TODO
defer.returnValue(res)
@defer.inlineCallbacks
def user_removed_from_group(self, group_id, user_id, content):
# TODO: Check if user in group
yield self.store.register_user_group_membership(
group_id, user_id,
membership="leave",
)
@defer.inlineCallbacks
def get_joined_groups(self, user_id):
group_ids = yield self.store.get_joined_groups(user_id)
defer.returnValue({"groups": group_ids})
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