def make_conditional(self, req):
"""
Make the response conditional to the HTTP headers in the CGI/WSGI `environ`.
Checks for ``If-none-match`` and ``If-modified-since`` headers and compares
to the etag and timestamp of this response. If the content was not modified
the repsonse will changed to HTTP 304 Not Modified.
"""
if req is None:
return
environ = req.environ
not_modified = False
if self.etag == environ.get('HTTP_IF_NONE_MATCH', -1):
not_modified = True
elif self._timestamp is not None:
date = environ.get('HTTP_IF_MODIFIED_SINCE', None)
timestamp = parse_httpdate(date)
if timestamp is not None and self._timestamp <= timestamp:
not_modified = True
if not_modified:
self.status = 304
self.response = []
if 'Content-type' in self.headers:
del self.headers['Content-type']
def test_parse_httpdate(self):
for date in (
"Fri, 13 Feb 2009 23:31:30 GMT",
"Friday, 13-Feb-09 23:31:30 GMT",
"Fri Feb 13 23:31:30 2009",
):
assert parse_httpdate(date) == 1234567890
def make_conditional(self, req):
"""
Make the response conditional to the HTTP headers in the CGI/WSGI `environ`.
Checks for ``If-none-match`` and ``If-modified-since`` headers and compares
to the etag and timestamp of this response. If the content was not modified
the repsonse will changed to HTTP 304 Not Modified.
"""
if req is None:
return
environ = req.environ
not_modified = False
if self.etag == environ.get('HTTP_IF_NONE_MATCH', -1):
not_modified = True
elif self._timestamp is not None:
date = environ.get('HTTP_IF_MODIFIED_SINCE', None)
timestamp = parse_httpdate(date)
if timestamp is not None and self._timestamp <= timestamp:
not_modified = True
if not_modified:
self.status = 304
self.response = []
if 'Content-type' in self.headers:
del self.headers['Content-type']
def test_parse_httpdate(self):
for date in (
'Fri, 13 Feb 2009 23:31:30 GMT',
'Friday, 13-Feb-09 23:31:30 GMT',
'Fri Feb 13 23:31:30 2009',
):
eq_(parse_httpdate(date), 1234567890)
def test_parse_httpdate(self):
for date in (
'Fri, 13 Feb 2009 23:31:30 GMT',
'Friday, 13-Feb-09 23:31:30 GMT',
'Fri Feb 13 23:31:30 2009',
):
eq_(parse_httpdate(date), 1234567890)
def test_parse_invalid(self):
for date in (
None,
'foobar',
'4823764923',
'Fri, 13 Foo 2009 23:31:30 GMT'
):
eq_(parse_httpdate(date), None)
def test_parse_invalid(self):
for date in (None, "foobar", "4823764923",
"Fri, 13 Foo 2009 23:31:30 GMT"):
assert parse_httpdate(date) == None
def test_parse_invalid(self):
for date in (None, 'foobar', '4823764923',
'Fri, 13 Foo 2009 23:31:30 GMT'):
eq_(parse_httpdate(date), None)
