Merged revisions 61034-61036,61038-61048 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r61034 | georg.brandl | 2008-02-24 01:03:22 +0100 (Sun, 24 Feb 2008) | 4 lines

  #900744: If an invalid chunked-encoding header is sent by a server,
  httplib will now raise IncompleteRead and close the connection instead
  of raising ValueError.
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  r61035 | georg.brandl | 2008-02-24 01:14:24 +0100 (Sun, 24 Feb 2008) | 2 lines

  #1627: httplib now ignores negative Content-Length headers.
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  r61039 | andrew.kuchling | 2008-02-24 03:39:15 +0100 (Sun, 24 Feb 2008) | 1 line

  Remove stray word
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  r61040 | neal.norwitz | 2008-02-24 03:40:58 +0100 (Sun, 24 Feb 2008) | 3 lines

  Add a little info to the 3k deprecation warnings about what to use instead.
  Suggested by Raymond Hettinger.
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  r61041 | facundo.batista | 2008-02-24 04:17:21 +0100 (Sun, 24 Feb 2008) | 4 lines


  Issue 1742669. Now %d accepts very big float numbers.
  Thanks Gabriel Genellina.
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  r61046 | neal.norwitz | 2008-02-24 08:21:56 +0100 (Sun, 24 Feb 2008) | 5 lines

  Get ctypes working on the Alpha (Tru64).  The problem was that there
  were two module_methods and the one used depended on the order the
  modules were loaded.  By making the test module_methods static,
  it is not exported and the correct version is picked up.
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  r61048 | neal.norwitz | 2008-02-24 09:27:49 +0100 (Sun, 24 Feb 2008) | 1 line

  Fix typo of hexidecimal
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1 files changed, 13 insertions, 2 deletions

diff --git a/Lib/httplib.py b/Lib/httplib.py
index 638a92b039..de27c17b4c 100644
--- a/Lib/httplib.py
+++ b/Lib/httplib.py
@@ -448,7 +448,12 @@ class HTTPResponse:
             try:
                 self.length = int(length)
             except ValueError:
-                pass
+                self.length = None
+            else:
+                if self.length < 0:  # ignore nonsensical negative lengths
+                    self.length = None
+        else:
+            self.length = None
 
         # does the body have a fixed length? (of zero)
         if (status == NO_CONTENT or status == NOT_MODIFIED or
@@ -569,7 +574,13 @@ class HTTPResponse:
                 i = line.find(b";")
                 if i >= 0:
                     line = line[:i] # strip chunk-extensions
-                chunk_left = int(line, 16)
+                try:
+                    chunk_left = int(line, 16)
+                except ValueError:
+                    # close the connection as protocol synchronisation is
+                    # probably lost
+                    self.close()
+                    raise IncompleteRead(value)
                 if chunk_left == 0:
                     break
             if amt is None: