1 files changed, 0 insertions, 149 deletions
diff --git a/synapse/crypto/keyclient.py b/synapse/crypto/keyclient.py
deleted file mode 100644
index d40e4b8591..0000000000
--- a/synapse/crypto/keyclient.py
+++ /dev/null
@@ -1,149 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014-2016 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.
-
-import logging
-
-from six.moves import urllib
-
-from canonicaljson import json
-
-from twisted.internet import defer, reactor
-from twisted.internet.error import ConnectError
-from twisted.internet.protocol import Factory
-from twisted.names.error import DomainError
-from twisted.web.http import HTTPClient
-
-from synapse.http.endpoint import matrix_federation_endpoint
-from synapse.util import logcontext
-
-logger = logging.getLogger(__name__)
-
-KEY_API_V2 = "/_matrix/key/v2/server/%s"
-
-
-@defer.inlineCallbacks
-def fetch_server_key(server_name, tls_client_options_factory, key_id):
-    """Fetch the keys for a remote server."""
-
-    factory = SynapseKeyClientFactory()
-    factory.path = KEY_API_V2 % (urllib.parse.quote(key_id), )
-    factory.host = server_name
-    endpoint = matrix_federation_endpoint(
-        reactor, server_name, tls_client_options_factory, timeout=30
-    )
-
-    for i in range(5):
-        try:
-            with logcontext.PreserveLoggingContext():
-                protocol = yield endpoint.connect(factory)
-                server_response, server_certificate = yield protocol.remote_key
-                defer.returnValue((server_response, server_certificate))
-        except SynapseKeyClientError as e:
-            logger.warn("Error getting key for %r: %s", server_name, e)
-            if e.status.startswith(b"4"):
-                # Don't retry for 4xx responses.
-                raise IOError("Cannot get key for %r" % server_name)
-        except (ConnectError, DomainError) as e:
-            logger.warn("Error getting key for %r: %s", server_name, e)
-        except Exception:
-            logger.exception("Error getting key for %r", server_name)
-    raise IOError("Cannot get key for %r" % server_name)
-
-
-class SynapseKeyClientError(Exception):
-    """The key wasn't retrieved from the remote server."""
-    status = None
-    pass
-
-
-class SynapseKeyClientProtocol(HTTPClient):
-    """Low level HTTPS client which retrieves an application/json response from
-    the server and extracts the X.509 certificate for the remote peer from the
-    SSL connection."""
-
-    timeout = 30
-
-    def __init__(self):
-        self.remote_key = defer.Deferred()
-        self.host = None
-        self._peer = None
-
-    def connectionMade(self):
-        self._peer = self.transport.getPeer()
-        logger.debug("Connected to %s", self._peer)
-
-        if not isinstance(self.path, bytes):
-            self.path = self.path.encode('ascii')
-
-        if not isinstance(self.host, bytes):
-            self.host = self.host.encode('ascii')
-
-        self.sendCommand(b"GET", self.path)
-        if self.host:
-            self.sendHeader(b"Host", self.host)
-        self.endHeaders()
-        self.timer = reactor.callLater(
-            self.timeout,
-            self.on_timeout
-        )
-
-    def errback(self, error):
-        if not self.remote_key.called:
-            self.remote_key.errback(error)
-
-    def callback(self, result):
-        if not self.remote_key.called:
-            self.remote_key.callback(result)
-
-    def handleStatus(self, version, status, message):
-        if status != b"200":
-            # logger.info("Non-200 response from %s: %s %s",
-            #            self.transport.getHost(), status, message)
-            error = SynapseKeyClientError(
-                "Non-200 response %r from %r" % (status, self.host)
-            )
-            error.status = status
-            self.errback(error)
-            self.transport.abortConnection()
-
-    def handleResponse(self, response_body_bytes):
-        try:
-            json_response = json.loads(response_body_bytes)
-        except ValueError:
-            # logger.info("Invalid JSON response from %s",
-            #            self.transport.getHost())
-            self.transport.abortConnection()
-            return
-
-        certificate = self.transport.getPeerCertificate()
-        self.callback((json_response, certificate))
-        self.transport.abortConnection()
-        self.timer.cancel()
-
-    def on_timeout(self):
-        logger.debug(
-            "Timeout waiting for response from %s: %s",
-            self.host, self._peer,
-        )
-        self.errback(IOError("Timeout waiting for response"))
-        self.transport.abortConnection()
-
-
-class SynapseKeyClientFactory(Factory):
-    def protocol(self):
-        protocol = SynapseKeyClientProtocol()
-        protocol.path = self.path
-        protocol.host = self.host
-        return protocol