anonymousland-synapse/synapse/handlers/profile.py

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# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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#
# 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.
import logging
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from twisted.internet import defer
import synapse.types
from synapse.api.errors import SynapseError, AuthError, CodeMessageException
from synapse.types import UserID
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from ._base import BaseHandler
logger = logging.getLogger(__name__)
class ProfileHandler(BaseHandler):
def __init__(self, hs):
super(ProfileHandler, self).__init__(hs)
self.federation = hs.get_replication_layer()
self.federation.register_query_handler(
"profile", self.on_profile_query
)
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@defer.inlineCallbacks
def get_displayname(self, target_user):
if self.hs.is_mine(target_user):
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displayname = yield self.store.get_profile_displayname(
target_user.localpart
)
defer.returnValue(displayname)
else:
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try:
result = yield self.federation.make_query(
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destination=target_user.domain,
query_type="profile",
args={
"user_id": target_user.to_string(),
"field": "displayname",
}
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)
except CodeMessageException as e:
if e.code != 404:
logger.exception("Failed to get displayname")
raise
except:
logger.exception("Failed to get displayname")
else:
defer.returnValue(result["displayname"])
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@defer.inlineCallbacks
def set_displayname(self, target_user, requester, new_displayname):
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"""target_user is the user whose displayname is to be changed;
auth_user is the user attempting to make this change."""
if not self.hs.is_mine(target_user):
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raise SynapseError(400, "User is not hosted on this Home Server")
if target_user != requester.user:
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raise AuthError(400, "Cannot set another user's displayname")
if new_displayname == '':
new_displayname = None
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yield self.store.set_profile_displayname(
target_user.localpart, new_displayname
)
yield self._update_join_states(requester)
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@defer.inlineCallbacks
def get_avatar_url(self, target_user):
if self.hs.is_mine(target_user):
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avatar_url = yield self.store.get_profile_avatar_url(
target_user.localpart
)
defer.returnValue(avatar_url)
else:
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try:
result = yield self.federation.make_query(
destination=target_user.domain,
query_type="profile",
args={
"user_id": target_user.to_string(),
"field": "avatar_url",
}
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)
except CodeMessageException as e:
if e.code != 404:
logger.exception("Failed to get avatar_url")
raise
except:
logger.exception("Failed to get avatar_url")
defer.returnValue(result["avatar_url"])
@defer.inlineCallbacks
def set_avatar_url(self, target_user, requester, new_avatar_url):
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"""target_user is the user whose avatar_url is to be changed;
auth_user is the user attempting to make this change."""
if not self.hs.is_mine(target_user):
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raise SynapseError(400, "User is not hosted on this Home Server")
if target_user != requester.user:
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raise AuthError(400, "Cannot set another user's avatar_url")
yield self.store.set_profile_avatar_url(
target_user.localpart, new_avatar_url
)
yield self._update_join_states(requester)
@defer.inlineCallbacks
def on_profile_query(self, args):
user = UserID.from_string(args["user_id"])
if not self.hs.is_mine(user):
raise SynapseError(400, "User is not hosted on this Home Server")
just_field = args.get("field", None)
response = {}
if just_field is None or just_field == "displayname":
response["displayname"] = yield self.store.get_profile_displayname(
user.localpart
)
if just_field is None or just_field == "avatar_url":
response["avatar_url"] = yield self.store.get_profile_avatar_url(
user.localpart
)
defer.returnValue(response)
@defer.inlineCallbacks
def _update_join_states(self, requester):
user = requester.user
if not self.hs.is_mine(user):
return
self.ratelimit(requester)
joins = yield self.store.get_rooms_for_user(
user.to_string(),
)
for j in joins:
handler = self.hs.get_handlers().room_member_handler
try:
# Assume the user isn't a guest because we don't let guests set
# profile or avatar data.
# XXX why are we recreating `requester` here for each room?
# what was wrong with the `requester` we were passed?
requester = synapse.types.create_requester(user)
yield handler.update_membership(
requester,
user,
j.room_id,
"join", # We treat a profile update like a join.
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ratelimit=False, # Try to hide that these events aren't atomic.
)
except Exception as e:
logger.warn(
"Failed to update join event for room %s - %s",
j.room_id, str(e.message)
)