Packages update

libs/requests/packages/urllib3/response.py

@@ -1,5 +1,5 @@
 # urllib3/response.py
-# Copyright 2008-2011 Andrey Petrov and contributors (see CONTRIBUTORS.txt)
+# Copyright 2008-2012 Andrey Petrov and contributors (see CONTRIBUTORS.txt)
 #
 # This module is part of urllib3 and is released under
 # the MIT License: http://www.opensource.org/licenses/mit-license.php
@@ -8,21 +8,22 @@ import gzip
 import logging
 import zlib
 
-
-try:
-    from cStringIO import StringIO
-except ImportError:
-    from StringIO import StringIO # pylint: disable-msg=W0404
-
+from io import BytesIO
 
 from .exceptions import HTTPError
 
 
+try:
+    basestring = basestring
+except NameError: # Python 3
+    basestring = (str, bytes)
+
+
 log = logging.getLogger(__name__)
 
 
 def decode_gzip(data):
-    gzipper = gzip.GzipFile(fileobj=StringIO(data))
+    gzipper = gzip.GzipFile(fileobj=BytesIO(data))
     return gzipper.read()
 
 
@@ -71,7 +72,7 @@ class HTTPResponse(object):
         self.strict = strict
 
         self._decode_content = decode_content
-        self._body = None
+        self._body = body if body and isinstance(body, basestring) else None
         self._fp = None
         self._original_response = original_response
 
@@ -81,9 +82,22 @@ class HTTPResponse(object):
         if hasattr(body, 'read'):
             self._fp = body
 
-        if preload_content:
+        if preload_content and not self._body:
             self._body = self.read(decode_content=decode_content)
 
+    def get_redirect_location(self):
+        """
+        Should we redirect and where to?
+
+        :returns: Truthy redirect location string if we got a redirect status
+            code and valid location. ``None`` if redirect status and no
+            location. ``False`` if not a redirect status code.
+        """
+        if self.status in [301, 302, 303, 307]:
+            return self.headers.get('location')
+
+        return False
+
     def release_conn(self):
         if not self._pool or not self._connection:
             return
@@ -98,10 +112,9 @@ class HTTPResponse(object):
             return self._body
 
         if self._fp:
-            return self.read(decode_content=self._decode_content,
-                             cache_content=True)
+            return self.read(cache_content=True)
 
-    def read(self, amt=None, decode_content=True, cache_content=False):
+    def read(self, amt=None, decode_content=None, cache_content=False):
         """
         Similar to :meth:`httplib.HTTPResponse.read`, but with two additional
         parameters: ``decode_content`` and ``cache_content``.
@@ -124,22 +137,22 @@ class HTTPResponse(object):
         """
         content_encoding = self.headers.get('content-encoding')
         decoder = self.CONTENT_DECODERS.get(content_encoding)
+        if decode_content is None:
+            decode_content = self._decode_content
 
-        data = self._fp and self._fp.read(amt)
+        if self._fp is None:
+            return
 
         try:
-
-            if amt:
-                return data
-
-            if not decode_content or not decoder:
-                if cache_content:
-                    self._body = data
-
-                return data
+            if amt is None:
+                # cStringIO doesn't like amt=None
+                data = self._fp.read()
+            else:
+                return self._fp.read(amt)
 
             try:
-                data = decoder(data)
+                if decode_content and decoder:
+                    data = decoder(data)
             except IOError:
                 raise HTTPError("Received response with content-encoding: %s, but "
                                 "failed to decode it." % content_encoding)
@@ -150,12 +163,11 @@ class HTTPResponse(object):
             return data
 
         finally:
-
             if self._original_response and self._original_response.isclosed():
                 self.release_conn()
 
-    @staticmethod
-    def from_httplib(r, **response_kw):
+    @classmethod
+    def from_httplib(ResponseCls, r, **response_kw):
         """
         Given an :class:`httplib.HTTPResponse` instance ``r``, return a
         corresponding :class:`urllib3.response.HTTPResponse` object.
@@ -164,14 +176,17 @@ class HTTPResponse(object):
         with ``original_response=r``.
         """
 
-        return HTTPResponse(body=r,
-                            headers=dict(r.getheaders()),
-                            status=r.status,
-                            version=r.version,
-                            reason=r.reason,
-                            strict=r.strict,
-                            original_response=r,
-                            **response_kw)
+        # HTTPResponse objects in Python 3 don't have a .strict attribute
+        strict = getattr(r, 'strict', 0)
+        return ResponseCls(body=r,
+                           # In Python 3, the header keys are returned capitalised
+                           headers=dict((k.lower(), v) for k,v in r.getheaders()),
+                           status=r.status,
+                           version=r.version,
+                           reason=r.reason,
+                           strict=strict,
+                           original_response=r,
+                           **response_kw)
 
     # Backwards-compatibility methods for httplib.HTTPResponse
     def getheaders(self):