72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 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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from synapse.api.errors import StoreError
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from synapse.util import stringutils
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from twisted.internet import defer
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from ._base import BaseHandler
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import logging
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logger = logging.getLogger(__name__)
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class DeviceHandler(BaseHandler):
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def __init__(self, hs):
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super(DeviceHandler, self).__init__(hs)
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@defer.inlineCallbacks
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def check_device_registered(self, user_id, device_id,
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initial_device_display_name):
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"""
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If the given device has not been registered, register it with the
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supplied display name.
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If no device_id is supplied, we make one up.
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Args:
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user_id (str): @user:id
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device_id (str | None): device id supplied by client
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initial_device_display_name (str | None): device display name from
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client
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Returns:
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str: device id (generated if none was supplied)
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"""
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if device_id is not None:
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yield self.store.store_device(
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user_id=user_id,
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device_id=device_id,
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initial_device_display_name=initial_device_display_name,
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ignore_if_known=True,
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)
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defer.returnValue(device_id)
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# if the device id is not specified, we'll autogen one, but loop a few
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# times in case of a clash.
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attempts = 0
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while attempts < 5:
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try:
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device_id = stringutils.random_string_with_symbols(16)
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yield self.store.store_device(
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user_id=user_id,
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device_id=device_id,
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initial_device_display_name=initial_device_display_name,
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ignore_if_known=False,
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)
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defer.returnValue(device_id)
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except StoreError:
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attempts += 1
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raise StoreError(500, "Couldn't generate a device ID.")
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