346 lines
12 KiB
Python
346 lines
12 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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import logging
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from twisted.internet import defer
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from synapse.api.errors import (
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AuthError,
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CodeMessageException,
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Codes,
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StoreError,
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SynapseError,
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)
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from synapse.metrics.background_process_metrics import run_as_background_process
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from synapse.types import UserID, get_domain_from_id
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from ._base import BaseHandler
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logger = logging.getLogger(__name__)
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class BaseProfileHandler(BaseHandler):
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"""Handles fetching and updating user profile information.
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BaseProfileHandler can be instantiated directly on workers and will
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delegate to master when necessary. The master process should use the
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subclass MasterProfileHandler
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"""
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def __init__(self, hs):
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super(BaseProfileHandler, self).__init__(hs)
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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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self.user_directory_handler = hs.get_user_directory_handler()
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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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try:
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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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except StoreError as e:
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if e.code == 404:
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raise SynapseError(404, "Profile was not found", Codes.NOT_FOUND)
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raise
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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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raise
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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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try:
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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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except StoreError as e:
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if e.code == 404:
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raise SynapseError(404, "Profile was not found", Codes.NOT_FOUND)
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raise
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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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@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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try:
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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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except StoreError as e:
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if e.code == 404:
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raise SynapseError(404, "Profile was not found", Codes.NOT_FOUND)
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raise
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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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raise
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defer.returnValue(result["displayname"])
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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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"""Set the displayname of a user
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Args:
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target_user (UserID): the user whose displayname is to be changed.
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requester (Requester): The user attempting to make this change.
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new_displayname (str): The displayname to give this user.
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by_admin (bool): Whether this change was made by an administrator.
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"""
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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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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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if new_displayname == '':
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new_displayname = None
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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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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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yield self._update_join_states(requester, target_user)
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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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try:
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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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except StoreError as e:
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if e.code == 404:
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raise SynapseError(404, "Profile was not found", Codes.NOT_FOUND)
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raise
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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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defer.returnValue(result["avatar_url"])
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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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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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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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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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yield self._update_join_states(requester, target_user)
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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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just_field = args.get("field", None)
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response = {}
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try:
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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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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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except StoreError as e:
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if e.code == 404:
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raise SynapseError(404, "Profile was not found", Codes.NOT_FOUND)
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raise
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defer.returnValue(response)
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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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yield self.ratelimit(requester)
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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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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)
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)
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class MasterProfileHandler(BaseProfileHandler):
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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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def __init__(self, hs):
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super(MasterProfileHandler, self).__init__(hs)
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assert hs.config.worker_app is None
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self.clock.looping_call(
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self._start_update_remote_profile_cache, self.PROFILE_UPDATE_MS,
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)
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def _start_update_remote_profile_cache(self):
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return run_as_background_process(
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"Update remote profile", self._update_remote_profile_cache,
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)
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@defer.inlineCallbacks
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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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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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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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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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new_name = profile.get("displayname")
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new_avatar = profile.get("avatar_url")
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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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