Set Token-Binding HTTP header

net/tools/testserver/testserver.py

 #!/usr/bin/env python
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """This is a simple HTTP/FTP/TCP/UDP/BASIC_AUTH_PROXY/WEBSOCKET server used for
 testing Chrome.
 
 It supports several test URLs, as specified by the handlers in TestPageHandler.
 By default, it listens on an ephemeral port and sends the port number back to
@@ skipping 322 matching lines @@
       self.AuthDigestHandler,
       self.SlowServerHandler,
       self.ChunkedServerHandler,
       self.NoContentHandler,
       self.ServerRedirectHandler,
       self.CrossSiteRedirectHandler,
       self.ClientRedirectHandler,
       self.GetSSLSessionCacheHandler,
       self.SSLManySmallRecords,
       self.GetChannelID,
+      self.GetTokenBindingEKM,
       self.GetClientCert,
       self.ClientCipherListHandler,
       self.CloseSocketHandler,
       self.RangeResetHandler,
       self.DefaultResponseHandler]
     post_handlers = [
       self.EchoTitleHandler,
       self.EchoHandler,
       self.PostOnlyFileHandler,
       self.EchoMultipartPostHandler] + get_handlers
@@ skipping 1157 matching lines @@
     if not self._ShouldHandleRequest('/channel-id'):
       return False
 
     self.send_response(200)
     self.send_header('Content-Type', 'text/plain')
     self.end_headers()
     channel_id = bytes(self.server.tlsConnection.channel_id)
     self.wfile.write(hashlib.sha256(channel_id).digest().encode('base64'))
     return True
 
+  def GetTokenBindingEKM(self):
+    """Send a reply containing the EKM value for token binding from the TLS
+    layer."""
+
+    if not self._ShouldHandleRequest('/tokbind-ekm'):
+      return False
+
+    ekm = self.server.tlsConnection.session.exportKeyingMaterial(
+        self.server.tlsConnection.version, "EXPORTER-Token-Binding", "",
+        False, 32)
+    self.send_response(200)
+    self.send_header('Content-Type', 'application/octet-stream')
+    self.end_headers()
+    self.wfile.write(ekm)
+    return True
+
   def GetClientCert(self):
     """Send a reply whether a client certificate was provided."""
 
     if not self._ShouldHandleRequest('/client-cert'):
       return False
 
     self.send_response(200)
     self.send_header('Content-Type', 'text/plain')
     self.end_headers()
 
@@ skipping 780 matching lines @@
                                   'an anonymous user.')
     self.option_parser.add_option('--disable-channel-id', action='store_true')
     self.option_parser.add_option('--disable-extended-master-secret',
                                   action='store_true')
     self.option_parser.add_option('--token-binding-params', action='append',
                                   default=[], type='int')
 
 
 if __name__ == '__main__':
   sys.exit(ServerRunner().main())