When reading from an SSL socket, attempt to fully fill the caller's buffer

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 247 matching lines @@
       self.AuthDigestHandler,
       self.SlowServerHandler,
       self.ChunkedServerHandler,
       self.ContentTypeHandler,
       self.NoContentHandler,
       self.ServerRedirectHandler,
       self.ClientRedirectHandler,
       self.MultipartHandler,
       self.MultipartSlowHandler,
       self.GetSSLSessionCacheHandler,
+      self.SSLManySmallRecords,
       self.CloseSocketHandler,
       self.RangeResetHandler,
       self.DefaultResponseHandler]
     post_handlers = [
       self.EchoTitleHandler,
       self.EchoHandler,
       self.DeviceManagementHandler,
       self.PostOnlyFileHandler] + get_handlers
     put_handlers = [
       self.EchoTitleHandler,
@@ skipping 1123 matching lines @@
     self.send_header('Content-Type', 'text/plain')
     self.end_headers()
     try:
       for (action, sessionID) in self.server.session_cache.log:
         self.wfile.write('%s\t%s\n' % (action, sessionID.encode('hex')))
     except AttributeError:
       self.wfile.write('Pass --https-record-resume in order to use' +
                        ' this request')
     return True
 
+  def SSLManySmallRecords(self):
+    """Sends a reply consisting of a variety of small writes. These will be
+    translated into a series of small SSL records when used over an HTTPS
+    server."""
+
+    if not self._ShouldHandleRequest('/ssl-many-small-records'):
+      return False
+
+    self.send_response(200)
+    self.send_header('Content-Type', 'text/plain')
+    self.end_headers()
+
+    # Write ~26K of data, in 1350 byte chunks
+    for i in xrange(20):
+      self.wfile.write('*' * 1350)
+      self.wfile.flush()
+    return True
+
   def CloseSocketHandler(self):
     """Closes the socket without sending anything."""
 
     if not self._ShouldHandleRequest('/close-socket'):
       return False
 
     self.wfile.close()
     return True
 
   def RangeResetHandler(self):
@@ skipping 623 matching lines @@
                                   'load multipe keys into the server. If the '
                                   'server has multiple keys, it will rotate '
                                   'through them in at each request a '
                                   'round-robin fashion. The server will '
                                   'generate a random key if none is specified '
                                   'on the command line.')
 
 
 if __name__ == '__main__':
   sys.exit(ServerRunner().main())