should fix _ensure_length in tee. while I'm here fix chunked response.

gunicorn/http/parser.py

@@ -37,13 +37,12 @@ class Parser(object):
         with new headers.
         """
 
-        ld = len("\r\n\r\n")
         s = "".join(buf)
         i = s.find("\r\n\r\n")
         if i != -1:
             if i > 0:
                 r = s[:i]
-            pos = i+ld
+            pos = i+4
             return self.finalize_headers(headers, r, pos)
         return -1
         
@@ -119,8 +118,7 @@ class Parser(object):
     @property
     def is_chunked(self):
         """ is TE: chunked ?"""
-        transfert_encoding = self.headers_dict.get('Transfer-Encoding', False)
+        return (self.headers_dict.get('Transfer-Encoding') == "chunked")
-        return (transfert_encoding == "chunked")
         
     @property
     def content_len(self):

gunicorn/http/response.py

@@ -3,7 +3,7 @@
 # This file is part of gunicorn released under the MIT license. 
 # See the NOTICE for more information.
 
-from gunicorn.util import http_date, write, close
+from gunicorn.util import  close, http_date, write, write_chunk
 
 class Response(object):
     

gunicorn/http/tee.py

@@ -155,7 +155,9 @@ class TeeInput(object):
     def _ensure_length(self, buf, length):
         if not buf or not self._len:
             return buf
-        while len(buf) < length and self.len != self.tmp.tell():
+        while True:
+            if len(buf) >= length: 
+                break
             data = self._tee(length - len(buf))
             if not data: break
             buf += data