Use full URI path from Glance endpoint in HTTP requests

Fixes bug 1052846

Now the connection uses host, port and path to connect to Glance. So proxied connections to Glance are allowed.

Change-Id: I53a890e6532adb8168961d1d09f938bf439e895c

glanceclient/common/http.py

@@ -57,7 +57,7 @@ class HTTPClient(object):
     def get_connection_params(endpoint, **kwargs):
         parts = urlparse.urlparse(endpoint)
 
-        _args = (parts.hostname, parts.port)
+        _args = (parts.hostname, parts.port, parts.path)
         _kwargs = {'timeout': float(kwargs.get('timeout', 600))}
 
         if parts.scheme == 'https':
@@ -134,7 +134,9 @@ class HTTPClient(object):
         conn = self.get_connection()
 
         try:
-            conn.request(method, url, **kwargs)
+            conn_params = self.connection_params[1][2]
+            conn_url = os.path.normpath('%s/%s' % (conn_params, url))
+            conn.request(method, conn_url, **kwargs)
             resp = conn.getresponse()
         except socket.gaierror as e:
             message = "Error finding address for %(url)s: %(e)s" % locals()