On 12/12/13 12:23, Amit Saha wrote:
----- Original Message -----
From: "Amit Saha" <as...@redhat.com>
To: "Twisted general discussion" <twisted-python@twistedmatrix.com>
Sent: Tuesday, December 10, 2013 11:59:27 AM
Subject: Re: [Twisted-Python] Queries about connecting to a XML-RPC server over
IPv6
----- Original Message -----
From: "Phil Mayers" <p.may...@imperial.ac.uk>
To: twisted-python@twistedmatrix.com
Sent: Monday, December 9, 2013 7:33:17 PM
Subject: Re: [Twisted-Python] Queries about connecting to a XML-RPC server
over IPv6
On 09/12/13 05:28, Amit Saha wrote:
proxy = Proxy('http://localhost6:8000')
proxy.callRemote('my_proxy_method').addCallbacks(printValue, printError)
When I run it, i get "No route to host: 101, Network is unreachable".
However, 'curl -6 localhost:8000' succeeds. What could be going on here?
The IPv6 support in Twisted is very new - check your version even *has*
it - and it's still a work in progress. You might find that you can't do
this. I'd have to read the code to be sure and I don't have time right
now, but my guess is that t.w.xmlrpc isn't "getaddrinfo"-ised so won't
connect to IPv6 names.
If your version of Twisted supports it, you could probably work around
this by sub-classing Proxy and calling reactor.connectTCP('::1', 8000)
to attach the protocol yourself.
Thanks for your reply, Phil. So, I basically modified twisted/web/xmlrpc.py
so that
when it was calling connectTCP(), i substituted '::1' in place of self.host
and yes the method is called successfully.
I will consider your other hints and see if there is an easy way to work
around this
in my particular use case.
I finally ended up doing this:
Just to point out this is obviously a pretty hackish way of doing it;
for starters, getaddrinfo() is blocking, so you should use deferToThread
at minimum.
You might want to look at:
http://twistedmatrix.com/trac/browser/tags/releases/twisted-13.2.0/twisted/internet/endpoints.py#L707
...for inspiration.
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