94 lines
2.9 KiB
Python
94 lines
2.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014, 2015 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 twisted.web.resource import Resource
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from synapse.http.server import respond_with_json_bytes
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from syutil.crypto.jsonsign import sign_json
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from syutil.base64util import encode_base64
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from syutil.jsonutil import encode_canonical_json
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from OpenSSL import crypto
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import logging
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logger = logging.getLogger(__name__)
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class LocalKey(Resource):
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"""HTTP resource containing encoding the TLS X.509 certificate and NACL
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signature verification keys for this server::
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GET /key HTTP/1.1
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HTTP/1.1 200 OK
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Content-Type: application/json
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{
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"server_name": "this.server.example.com"
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"verify_keys": {
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"algorithm:version": # base64 encoded NACL verification key.
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},
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"tls_certificate": # base64 ASN.1 DER encoded X.509 tls cert.
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"signatures": {
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"this.server.example.com": {
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"algorithm:version": # NACL signature for this server.
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}
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}
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}
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"""
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def __init__(self, hs):
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self.hs = hs
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self.version_string = hs.version_string
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self.response_body = encode_canonical_json(
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self.response_json_object(hs.config)
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)
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Resource.__init__(self)
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@staticmethod
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def response_json_object(server_config):
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verify_keys = {}
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for key in server_config.signing_key:
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verify_key_bytes = key.verify_key.encode()
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key_id = "%s:%s" % (key.alg, key.version)
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verify_keys[key_id] = encode_base64(verify_key_bytes)
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x509_certificate_bytes = crypto.dump_certificate(
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crypto.FILETYPE_ASN1,
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server_config.tls_certificate
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)
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json_object = {
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u"server_name": server_config.server_name,
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u"verify_keys": verify_keys,
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u"tls_certificate": encode_base64(x509_certificate_bytes)
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}
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for key in server_config.signing_key:
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json_object = sign_json(
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json_object,
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server_config.server_name,
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key,
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)
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return json_object
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def render_GET(self, request):
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return respond_with_json_bytes(
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request, 200, self.response_body,
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version_string=self.version_string
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)
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def getChild(self, name, request):
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if name == '':
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return self
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