Work around httplib2 tunnelling bug

[Mark McLoughlin]

I'm using novaclient to access an OpenStack install over a corporate squid proxy

It's a plain old HTTP connection, but httplib2 is insisting on doing CONNECT tunnelling

I'm getting a 403 Forbidden from the proxy because it's using the default squid config which rejects CONNECT to ports other than 443

More details here:

  http://code.google.com/p/httplib2/issues/detail?id=228

The upshot is we want to use PROXY_TYPE_HTTP_NO_TUNNEL for plain HTTP connections

We can hack a pretty simple workaround into novaclient to force this

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/13036

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/13036
Committed: http://github.com/openstack/python-novaclient/commit/aaa38ce0e54d97d744826e0b353ec79329cbaf91
Submitter: Jenkins
Branch: master

commit aaa38ce0e54d97d744826e0b353ec79329cbaf91
Author: Mark McLoughlin <email address hidden>
Date: Fri Sep 14 18:31:24 2012 +0100

    Work around httplib2 tunnelling bug

    Fixes bug #1051007

    httplib2 defaults to using HTTP CONNECT tunnelling even for plain HTTP
    connections. This is problematic with proxies configured to only allow
    tunnelling to port 443. This is the default configuration for squid.

    Hack around the problem by forcing httplib2 to use the HTTP_NO_TUNNEL
    proxy type which disables tunnelling except for port 443.

    Change-Id: I59cd95ed74a9bb795779fc38fbc0935266cc8b22