297 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			297 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Python
		
	
	
| # -*- coding: utf-8 -*-
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| # Copyright 2014-2016 OpenMarket Ltd
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| #
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| # Licensed under the Apache License, Version 2.0 (the "License");
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| # you may not use this file except in compliance with the License.
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| # You may obtain a copy of the License at
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| #
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| #     http://www.apache.org/licenses/LICENSE-2.0
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| #
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| # Unless required by applicable law or agreed to in writing, software
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| # distributed under the License is distributed on an "AS IS" BASIS,
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| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| # See the License for the specific language governing permissions and
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| # limitations under the License.
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| 
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| import logging
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| 
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| from twisted.internet import defer
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| 
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| from synapse.api.errors import AuthError, CodeMessageException, SynapseError
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| from synapse.types import UserID, get_domain_from_id
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| 
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| from ._base import BaseHandler
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| 
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| logger = logging.getLogger(__name__)
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| 
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| 
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| class ProfileHandler(BaseHandler):
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|     PROFILE_UPDATE_MS = 60 * 1000
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|     PROFILE_UPDATE_EVERY_MS = 24 * 60 * 60 * 1000
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| 
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|     def __init__(self, hs):
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|         super(ProfileHandler, self).__init__(hs)
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| 
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|         self.federation = hs.get_federation_client()
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|         hs.get_federation_registry().register_query_handler(
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|             "profile", self.on_profile_query
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|         )
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| 
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|         self.user_directory_handler = hs.get_user_directory_handler()
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| 
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|         if hs.config.worker_app is None:
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|             self.clock.looping_call(
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|                 self._update_remote_profile_cache, self.PROFILE_UPDATE_MS,
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|             )
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| 
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|     @defer.inlineCallbacks
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|     def get_profile(self, user_id):
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|         target_user = UserID.from_string(user_id)
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|         if self.hs.is_mine(target_user):
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|             displayname = yield self.store.get_profile_displayname(
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|                 target_user.localpart
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|             )
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|             avatar_url = yield self.store.get_profile_avatar_url(
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|                 target_user.localpart
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|             )
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| 
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|             defer.returnValue({
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|                 "displayname": displayname,
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|                 "avatar_url": avatar_url,
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|             })
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|         else:
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|             try:
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|                 result = yield self.federation.make_query(
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|                     destination=target_user.domain,
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|                     query_type="profile",
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|                     args={
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|                         "user_id": user_id,
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|                     },
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|                     ignore_backoff=True,
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|                 )
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|                 defer.returnValue(result)
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|             except CodeMessageException as e:
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|                 if e.code != 404:
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|                     logger.exception("Failed to get displayname")
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| 
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|                 raise
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| 
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|     @defer.inlineCallbacks
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|     def get_profile_from_cache(self, user_id):
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|         """Get the profile information from our local cache. If the user is
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|         ours then the profile information will always be corect. Otherwise,
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|         it may be out of date/missing.
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|         """
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|         target_user = UserID.from_string(user_id)
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|         if self.hs.is_mine(target_user):
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|             displayname = yield self.store.get_profile_displayname(
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|                 target_user.localpart
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|             )
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|             avatar_url = yield self.store.get_profile_avatar_url(
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|                 target_user.localpart
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|             )
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| 
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|             defer.returnValue({
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|                 "displayname": displayname,
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|                 "avatar_url": avatar_url,
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|             })
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|         else:
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|             profile = yield self.store.get_from_remote_profile_cache(user_id)
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|             defer.returnValue(profile or {})
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| 
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|     @defer.inlineCallbacks
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|     def get_displayname(self, target_user):
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|         if self.hs.is_mine(target_user):
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|             displayname = yield self.store.get_profile_displayname(
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|                 target_user.localpart
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|             )
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| 
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|             defer.returnValue(displayname)
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|         else:
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|             try:
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|                 result = yield self.federation.make_query(
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|                     destination=target_user.domain,
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|                     query_type="profile",
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|                     args={
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|                         "user_id": target_user.to_string(),
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|                         "field": "displayname",
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|                     },
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|                     ignore_backoff=True,
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|                 )
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|             except CodeMessageException as e:
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|                 if e.code != 404:
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|                     logger.exception("Failed to get displayname")
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| 
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|                 raise
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|             except Exception:
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|                 logger.exception("Failed to get displayname")
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|             else:
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|                 defer.returnValue(result["displayname"])
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| 
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|     @defer.inlineCallbacks
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|     def set_displayname(self, target_user, requester, new_displayname, by_admin=False):
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|         """target_user is the user whose displayname is to be changed;
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|         auth_user is the user attempting to make this change."""
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|         if not self.hs.is_mine(target_user):
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|             raise SynapseError(400, "User is not hosted on this Home Server")
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| 
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|         if not by_admin and target_user != requester.user:
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|             raise AuthError(400, "Cannot set another user's displayname")
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| 
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|         if new_displayname == '':
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|             new_displayname = None
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| 
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|         yield self.store.set_profile_displayname(
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|             target_user.localpart, new_displayname
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|         )
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| 
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|         if self.hs.config.user_directory_search_all_users:
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|             profile = yield self.store.get_profileinfo(target_user.localpart)
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|             yield self.user_directory_handler.handle_local_profile_change(
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|                 target_user.to_string(), profile
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|             )
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| 
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|         yield self._update_join_states(requester, target_user)
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| 
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|     @defer.inlineCallbacks
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|     def get_avatar_url(self, target_user):
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|         if self.hs.is_mine(target_user):
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|             avatar_url = yield self.store.get_profile_avatar_url(
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|                 target_user.localpart
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|             )
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| 
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|             defer.returnValue(avatar_url)
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|         else:
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|             try:
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|                 result = yield self.federation.make_query(
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|                     destination=target_user.domain,
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|                     query_type="profile",
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|                     args={
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|                         "user_id": target_user.to_string(),
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|                         "field": "avatar_url",
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|                     },
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|                     ignore_backoff=True,
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|                 )
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|             except CodeMessageException as e:
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|                 if e.code != 404:
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|                     logger.exception("Failed to get avatar_url")
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|                 raise
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|             except Exception:
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|                 logger.exception("Failed to get avatar_url")
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| 
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|             defer.returnValue(result["avatar_url"])
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| 
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|     @defer.inlineCallbacks
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|     def set_avatar_url(self, target_user, requester, new_avatar_url, by_admin=False):
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|         """target_user is the user whose avatar_url is to be changed;
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|         auth_user is the user attempting to make this change."""
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|         if not self.hs.is_mine(target_user):
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|             raise SynapseError(400, "User is not hosted on this Home Server")
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| 
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|         if not by_admin and target_user != requester.user:
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|             raise AuthError(400, "Cannot set another user's avatar_url")
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| 
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|         yield self.store.set_profile_avatar_url(
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|             target_user.localpart, new_avatar_url
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|         )
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| 
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|         if self.hs.config.user_directory_search_all_users:
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|             profile = yield self.store.get_profileinfo(target_user.localpart)
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|             yield self.user_directory_handler.handle_local_profile_change(
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|                 target_user.to_string(), profile
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|             )
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| 
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|         yield self._update_join_states(requester, target_user)
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| 
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|     @defer.inlineCallbacks
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|     def on_profile_query(self, args):
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|         user = UserID.from_string(args["user_id"])
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|         if not self.hs.is_mine(user):
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|             raise SynapseError(400, "User is not hosted on this Home Server")
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| 
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|         just_field = args.get("field", None)
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| 
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|         response = {}
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| 
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|         if just_field is None or just_field == "displayname":
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|             response["displayname"] = yield self.store.get_profile_displayname(
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|                 user.localpart
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|             )
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| 
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|         if just_field is None or just_field == "avatar_url":
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|             response["avatar_url"] = yield self.store.get_profile_avatar_url(
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|                 user.localpart
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|             )
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| 
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|         defer.returnValue(response)
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| 
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|     @defer.inlineCallbacks
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|     def _update_join_states(self, requester, target_user):
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|         if not self.hs.is_mine(target_user):
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|             return
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| 
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|         yield self.ratelimit(requester)
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| 
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|         room_ids = yield self.store.get_rooms_for_user(
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|             target_user.to_string(),
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|         )
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| 
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|         for room_id in room_ids:
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|             handler = self.hs.get_room_member_handler()
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|             try:
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|                 # Assume the target_user isn't a guest,
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|                 # because we don't let guests set profile or avatar data.
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|                 yield handler.update_membership(
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|                     requester,
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|                     target_user,
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|                     room_id,
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|                     "join",  # We treat a profile update like a join.
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|                     ratelimit=False,  # Try to hide that these events aren't atomic.
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|                 )
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|             except Exception as e:
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|                 logger.warn(
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|                     "Failed to update join event for room %s - %s",
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|                     room_id, str(e.message)
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|                 )
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| 
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|     def _update_remote_profile_cache(self):
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|         """Called periodically to check profiles of remote users we haven't
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|         checked in a while.
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|         """
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|         entries = yield self.store.get_remote_profile_cache_entries_that_expire(
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|             last_checked=self.clock.time_msec() - self.PROFILE_UPDATE_EVERY_MS
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|         )
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| 
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|         for user_id, displayname, avatar_url in entries:
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|             is_subscribed = yield self.store.is_subscribed_remote_profile_for_user(
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|                 user_id,
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|             )
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|             if not is_subscribed:
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|                 yield self.store.maybe_delete_remote_profile_cache(user_id)
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|                 continue
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| 
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|             try:
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|                 profile = yield self.federation.make_query(
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|                     destination=get_domain_from_id(user_id),
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|                     query_type="profile",
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|                     args={
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|                         "user_id": user_id,
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|                     },
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|                     ignore_backoff=True,
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|                 )
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|             except Exception:
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|                 logger.exception("Failed to get avatar_url")
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| 
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|                 yield self.store.update_remote_profile_cache(
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|                     user_id, displayname, avatar_url
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|                 )
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|                 continue
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| 
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|             new_name = profile.get("displayname")
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|             new_avatar = profile.get("avatar_url")
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| 
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|             # We always hit update to update the last_check timestamp
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|             yield self.store.update_remote_profile_cache(
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|                 user_id, new_name, new_avatar
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|             )
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