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# -*- coding: utf-8 -*-
# Copyright 2014 matrix.org
#
# 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, AuthError
from synapse.api.errors import CodeMessageException
from ._base import BaseHandler
import logging
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
)
distributor = hs.get_distributor()
self.distributor = distributor
distributor.observe("registered_user", self.registered_user)
distributor.observe(
"collect_presencelike_data", self.collect_presencelike_data
)
def registered_user(self, user):
self.store.create_profile(user.localpart)
@defer.inlineCallbacks
def get_displayname(self, target_user):
if target_user.is_mine:
displayname = yield self.store.get_profile_displayname(
target_user.localpart
)
defer.returnValue(displayname)
else:
try:
result = yield self.federation.make_query(
destination=target_user.domain,
query_type="profile",
args={
"user_id": target_user.to_string(),
"field": "displayname",
}
)
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"])
@defer.inlineCallbacks
def set_displayname(self, target_user, auth_user, new_displayname):
"""target_user is the user whose displayname is to be changed;
auth_user is the user attempting to make this change."""
if not target_user.is_mine:
raise SynapseError(400, "User is not hosted on this Home Server")
if target_user != auth_user:
raise AuthError(400, "Cannot set another user's displayname")
yield self.store.set_profile_displayname(
target_user.localpart, new_displayname
)
yield self.distributor.fire(
"changed_presencelike_data", target_user, {
"displayname": new_displayname,
}
)
@defer.inlineCallbacks
def get_avatar_url(self, target_user):
if target_user.is_mine:
avatar_url = yield self.store.get_profile_avatar_url(
target_user.localpart
)
defer.returnValue(avatar_url)
else:
try:
result = yield self.federation.make_query(
destination=target_user.domain,
query_type="profile",
args={
"user_id": target_user.to_string(),
"field": "avatar_url",
}
)
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, auth_user, new_avatar_url):
"""target_user is the user whose avatar_url is to be changed;
auth_user is the user attempting to make this change."""
if not target_user.is_mine:
raise SynapseError(400, "User is not hosted on this Home Server")
if target_user != auth_user:
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.distributor.fire(
"changed_presencelike_data", target_user, {
"avatar_url": new_avatar_url,
}
)
@defer.inlineCallbacks
def collect_presencelike_data(self, user, state):
if not user.is_mine:
defer.returnValue(None)
(displayname, avatar_url) = yield defer.gatherResults([
self.store.get_profile_displayname(user.localpart),
self.store.get_profile_avatar_url(user.localpart),
])
state["displayname"] = displayname
state["avatar_url"] = avatar_url
defer.returnValue(None)
@defer.inlineCallbacks
def on_profile_query(self, args):
user = self.hs.parse_userid(args["user_id"])
if not user.is_mine:
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)
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