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Ensure response to HEAD request won't have message body

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Ensure that Gunicorn won't try to use chunked transfer-encoding for responses
to a HEAD request, so that `Response.close` will not write a terminating
chunk. Responses to a HEAD request MUST NOT have a message-body.

The application is still responsible for ensuring no message body is actually
generated in response to a HEAD request.
This commit is contained in:
Paul Aurich 2015-07-12 13:50:46 -07:00
parent 305f373dc6
commit 53329b19cc
1 changed files with 5 additions and 0 deletions
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5
gunicorn/http/wsgi.py
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@ -230,6 +230,8 @@ class Response(object):
return True
if self.response_length is not None or self.chunked:
return False
if self.req.method == 'HEAD':
return False
if self.status_code < 200 or self.status_code in (204, 304):
return False
return True
@ -287,6 +289,9 @@ class Response(object):
return False
elif self.req.version <= (1, 0):
return False
elif self.req.method == 'HEAD':
# Responses to a HEAD request MUST NOT contain a response body.
return False
elif self.status_code in (204, 304):
# Do not use chunked responses when the response is guaranteed to
# not have a response body.