Hi Cedric,
I ran into the same issue and patched libcloud.httplib_ssl. I’ve included the
code snippets below. The proxy I use doesn’t require authentication but
hopefully you can adapt to make it do what you need. I tested with Python 2.7
- may need tweaking for Python 3.
Cheers,
Phil
I modified the LibcloudHTTPSConnection.__init__ to pick up the proxy settings
from the environment:
class LibcloudHTTPSConnection(httplib.HTTPSConnection):
"""
LibcloudHTTPSConnection
Subclass of HTTPSConnection which verifies certificate names
if and only if CA certificates are available.
"""
verify = True # verify by default
ca_cert = None # no default CA Certificate
def __init__(self, *args, **kwargs):
"""
Constructor
"""
self._setup_verify()
httplib.HTTPSConnection.__init__(self, *args, **kwargs)
# Support for HTTPS Proxy
if 'https_proxy' in os.environ:
from urlparse import urlparse
self.set_tunnel(self.host, port=self.port)
proxy_host = urlparse(os.environ['https_proxy']).netloc
self._set_hostport(proxy_host, None)
.
.
.
And then modified the connect call to use the tunnel:
def connect(self):
"""
Connect
Checks if verification is toggled; if not, just call
httplib.HTTPSConnection's connect
"""
if not self.verify:
return httplib.HTTPSConnection.connect(self)
# otherwise, create a connection and verify the hostname
# use socket.create_connection (in 2.6+) if possible
if getattr(socket, 'create_connection', None):
sock = socket.create_connection((self.host, self.port),
self.timeout)
else:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((self.host, self.port))
# Support for HTTPS Proxy
if self._tunnel_host:
self.sock = sock
self._tunnel()
self.sock = ssl.wrap_socket(sock,
self.key_file,
self.cert_file,
cert_reqs=ssl.CERT_REQUIRED,
ca_certs=self.ca_cert,
ssl_version=ssl.PROTOCOL_TLSv1)
cert = self.sock.getpeercert()
if not self._verify_hostname(self.host, cert):
raise ssl.SSLError('Failed to verify hostname')
On 8 Jul 2014, at 07:23, Cedric Lebrun <[email protected]> wrote:
> Hi All,
>
> I try to use Libcloud to connect to EC2.
> My environments (CentOS 6.5 and Ubuntu 14.04) are behind a proxy server that
> requires authentication (MS ISA Proxy Server).
> I tried with defining environment variables HTTP_PROXY and HTTPS_PROXY, but
> still doesn't work.
> Is there a way to set a proxy and proxy credentials directly using Libcloud ?
> Or should I have to patch the http_lib to implement UrlLib2 ProxyHandler ?
>
> Thanks for your help,
> CL
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