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# -*- coding: utf-8 -*-
# Copyright 2016 OpenMarket 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 synapse.api import errors
from synapse.util import stringutils
from twisted.internet import defer
from ._base import BaseHandler
import logging
logger = logging.getLogger(__name__)
class DeviceHandler(BaseHandler):
def __init__(self, hs):
super(DeviceHandler, self).__init__(hs)
@defer.inlineCallbacks
def check_device_registered(self, user_id, device_id,
initial_device_display_name):
"""
If the given device has not been registered, register it with the
supplied display name.
If no device_id is supplied, we make one up.
Args:
user_id (str): @user:id
device_id (str | None): device id supplied by client
initial_device_display_name (str | None): device display name from
client
Returns:
str: device id (generated if none was supplied)
"""
if device_id is not None:
yield self.store.store_device(
user_id=user_id,
device_id=device_id,
initial_device_display_name=initial_device_display_name,
ignore_if_known=True,
)
defer.returnValue(device_id)
# if the device id is not specified, we'll autogen one, but loop a few
# times in case of a clash.
attempts = 0
while attempts < 5:
try:
device_id = stringutils.random_string_with_symbols(16)
yield self.store.store_device(
user_id=user_id,
device_id=device_id,
initial_device_display_name=initial_device_display_name,
ignore_if_known=False,
)
defer.returnValue(device_id)
except errors.StoreError:
attempts += 1
raise errors.StoreError(500, "Couldn't generate a device ID.")
@defer.inlineCallbacks
def get_devices_by_user(self, user_id):
"""
Retrieve the given user's devices
Args:
user_id (str):
Returns:
defer.Deferred: dict[str, dict[str, X]]: map from device_id to
info on the device
"""
devices = yield self.store.get_devices_by_user(user_id)
ips = yield self.store.get_last_client_ip_by_device(
devices=((user_id, device_id) for device_id in devices.keys())
)
for device in devices.values():
_update_device_from_client_ips(device, ips)
defer.returnValue(devices)
@defer.inlineCallbacks
def get_device(self, user_id, device_id):
""" Retrieve the given device
Args:
user_id (str):
device_id (str)
Returns:
defer.Deferred: dict[str, X]: info on the device
Raises:
errors.NotFoundError: if the device was not found
"""
try:
device = yield self.store.get_device(user_id, device_id)
except errors.StoreError:
raise errors.NotFoundError
ips = yield self.store.get_last_client_ip_by_device(
devices=((user_id, device_id),)
)
_update_device_from_client_ips(device, ips)
defer.returnValue(device)
def _update_device_from_client_ips(device, client_ips):
ip = client_ips.get((device["user_id"], device["device_id"]), {})
device.update({
"last_seen_ts": ip.get("last_seen"),
"last_seen_ip": ip.get("ip"),
})
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