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![Erik Johnston](/assets/img/avatar_default.png)
During the migration the automated script to update the copyright headers accidentally got rid of some of the existing copyright lines. Reinstate them.
110 lines
3.4 KiB
Python
110 lines
3.4 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2015, 2016 OpenMarket Ltd
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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import logging
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from typing import TYPE_CHECKING, Tuple
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from synapse.api.errors import AuthError
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from synapse.http.server import HttpServer
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from synapse.http.servlet import RestServlet, parse_json_object_from_request
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from synapse.http.site import SynapseRequest
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from synapse.types import JsonDict
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from synapse.util.stringutils import random_string
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from ._base import client_patterns
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if TYPE_CHECKING:
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from synapse.server import HomeServer
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logger = logging.getLogger(__name__)
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class IdTokenServlet(RestServlet):
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"""
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Get a bearer token that may be passed to a third party to confirm ownership
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of a matrix user id.
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The format of the response could be made compatible with the format given
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in http://openid.net/specs/openid-connect-core-1_0.html#TokenResponse
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But instead of returning a signed "id_token" the response contains the
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name of the issuing matrix homeserver. This means that for now the third
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party will need to check the validity of the "id_token" against the
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federation /openid/userinfo endpoint of the homeserver.
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Request:
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POST /user/{user_id}/openid/request_token?access_token=... HTTP/1.1
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{}
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Response:
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HTTP/1.1 200 OK
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{
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"access_token": "ABDEFGH",
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"token_type": "Bearer",
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"matrix_server_name": "example.com",
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"expires_in": 3600,
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}
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"""
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PATTERNS = client_patterns("/user/(?P<user_id>[^/]*)/openid/request_token")
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EXPIRES_MS = 3600 * 1000
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def __init__(self, hs: "HomeServer"):
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super().__init__()
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self.auth = hs.get_auth()
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self.store = hs.get_datastores().main
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self.clock = hs.get_clock()
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self.server_name = hs.config.server.server_name
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async def on_POST(
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self, request: SynapseRequest, user_id: str
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) -> Tuple[int, JsonDict]:
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requester = await self.auth.get_user_by_req(request)
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if user_id != requester.user.to_string():
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raise AuthError(403, "Cannot request tokens for other users.")
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# Parse the request body to make sure it's JSON, but ignore the contents
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# for now.
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parse_json_object_from_request(request)
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token = random_string(24)
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ts_valid_until_ms = self.clock.time_msec() + self.EXPIRES_MS
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await self.store.insert_open_id_token(token, ts_valid_until_ms, user_id)
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return (
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200,
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{
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"access_token": token,
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"token_type": "Bearer",
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"matrix_server_name": self.server_name,
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"expires_in": self.EXPIRES_MS // 1000,
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},
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)
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def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
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IdTokenServlet(hs).register(http_server)
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