[Twisted-Python] https xmlrpc through proxy

[Grant Kelly]

Hello,

I just signed up for this list because I am having no success connecting 
to an https xmlrpc server through a proxy/firewall. The proxy can do 
both http and https for the web just fine. I have also been able to 
connect to an xmlrpc server with just http through the proxy.  I am 
using the ProxiedXMLRPC class from this page: 
http://twistedmatrix.com/pipermail/twisted-python/2004-December/009258.html
The author notes it isn't tested with https.

In order to connect to the xmlrpc server, a certificate and key need to 
be specified. I don't know where to specify these files.

I don't even know if this is technically possible. I am hoping that it is.

Any suggestions will be appreciated.
Grant

PS:  I'm going to include the python traceback in case it provides any 
more information:

Traceback (most recent call last):
  File "/usr/local/lib/python2.4/site-packages/twisted/python/log.py", 
line 41, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File 
"/usr/local/lib/python2.4/site-packages/twisted/python/context.py", line 
52, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File 
"/usr/local/lib/python2.4/site-packages/twisted/python/context.py", line 
31, in callWithContext
    return func(*args,**kw)
  File 
"/usr/local/lib/python2.4/site-packages/twisted/internet/selectreactor.py", 
line 139, in _doReadOrWrite
    why = getattr(selectable, method)()
--- <exception caught here> ---
  File "/usr/local/lib/python2.4/site-packages/twisted/internet/tcp.py", 
line 111, in doRead
    return Connection.doRead(self)
  File "/usr/local/lib/python2.4/site-packages/twisted/internet/tcp.py", 
line 343, in doRead
    data = self.socket.recv(self.bufferSize)
OpenSSL.SSL.Error: [('SSL routines', 'SSL3_READ_BYTES', 'ssl handshake 
failure')]
Traceback (most recent call last):
  File "testproxy.py", line 54, in ?
    reactor.run()
  File 
"/usr/local/lib/python2.4/site-packages/twisted/internet/posixbase.py", 
line 199, in run
    self.mainLoop()
  File 
"/usr/local/lib/python2.4/site-packages/twisted/internet/posixbase.py", 
line 210, in mainLoop
    self.doIteration(t)
  File 
"/usr/local/lib/python2.4/site-packages/twisted/internet/selectreactor.py", 
line 133, in doSelect
    _logrun(selectable, _drdw, selectable, method, dict)
--- <exception caught here> ---
  File "/usr/local/lib/python2.4/site-packages/twisted/python/log.py", 
line 56, in callWithLogger
    return callWithContext({"system": lp}, func, *args, **kw)
  File "/usr/local/lib/python2.4/site-packages/twisted/python/log.py", 
line 41, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File 
"/usr/local/lib/python2.4/site-packages/twisted/python/context.py", line 
52, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File 
"/usr/local/lib/python2.4/site-packages/twisted/python/context.py", line 
31, in callWithContext
    return func(*args,**kw)
  File 
"/usr/local/lib/python2.4/site-packages/twisted/internet/selectreactor.py", 
line 149, in _doReadOrWrite
    self._disconnectSelectable(selectable, why, method=="doRead")
  File 
"/usr/local/lib/python2.4/site-packages/twisted/internet/posixbase.py", 
line 234, in _disconnectSelectable
    selectable.connectionLost(f)
  File "/usr/local/lib/python2.4/site-packages/twisted/internet/tcp.py", 
line 556, in connectionLost
    Connection.connectionLost(self, reason)
  File "/usr/local/lib/python2.4/site-packages/twisted/internet/tcp.py", 
line 402, in connectionLost
    protocol.connectionLost(reason)
  File "/usr/local/lib/python2.4/site-packages/twisted/web/http.py", 
line 351, in connectionLost
    self.handleResponseEnd()
  File "/usr/local/lib/python2.4/site-packages/twisted/web/http.py", 
line 357, in handleResponseEnd
    self.handleResponse(b)
  File "/usr/local/lib/python2.4/site-packages/twisted/web/xmlrpc.py", 
line 259, in handleResponse
    self.factory.parseResponse(contents)
  File "/usr/local/lib/python2.4/site-packages/twisted/web/xmlrpc.py", 
line 284, in parseResponse
    response = xmlrpclib.loads(contents)
  File "/usr/local/lib/python2.4/xmlrpclib.py", line 1080, in loads
    p.close()
  File "/usr/local/lib/python2.4/xmlrpclib.py", line 530, in close
    self._parser.Parse("", 1) # end of data
xml.parsers.expat.ExpatError: no element found: line 1, column 0