def __init__(self, code=None, headers=None, stream=None):
"""
@param code: The HTTP status code for this Response
@type code: C{int}
@param headers: Headers to be sent to the client.
@type headers: C{dict}, L{hack.web2.http_headers.Headers}, or
C{None}
@param stream: Content body to send to the HTTP client
@type stream: L{hack.web2.stream.IByteStream}
"""
if code is not None:
self.code = int(code)
if headers is not None:
if isinstance(headers, dict):
headers = http_headers.Headers(headers)
self.headers=headers
else:
self.headers = http_headers.Headers()
if stream is not None:
self.stream = IByteStream(stream)
def testParsedAndRaw(self):
def parse(raw):
return parsedvalue(raw)
def generate(parsed):
return parsed.raw
rawvalue = ("value1", "value2")
rawvalue2 = ("value3", "value4")
handler = HeaderHandler(parsers={'test': (parse, )},
generators={'test': (generate, )})
h = http_headers.Headers(handler=handler)
h.setRawHeaders("test", rawvalue)
self.assertEquals(h.getHeader("test"), parsedvalue(rawvalue))
h.setHeader("test", parsedvalue(rawvalue2))
self.assertEquals(h.getRawHeaders("test"), rawvalue2)
# Check the initializers
h = http_headers.Headers(rawHeaders={"test": rawvalue},
handler=handler)
self.assertEquals(h.getHeader("test"), parsedvalue(rawvalue))
h = http_headers.Headers({"test": parsedvalue(rawvalue2)},
handler=handler)
self.assertEquals(h.getRawHeaders("test"), rawvalue2)
def testIfMatch(self):
request = http.Request(None, "GET", "/", "HTTP/1.1", 0,
http_headers.Headers())
out_headers = http_headers.Headers()
response = http.Response(responsecode.OK, out_headers, None)
# Behavior with no ETag set, should be same as with an ETag
request.headers.setRawHeaders("If-Match", ('*', ))
self.checkPreconditions(request, response, True, responsecode.OK)
self.checkPreconditions(request,
response,
False,
responsecode.PRECONDITION_FAILED,
entityExists=False)
# Ask for tag, but no etag set.
request.headers.setRawHeaders("If-Match", ('"frob"', ))
self.checkPreconditions(request, response, False,
responsecode.PRECONDITION_FAILED)
## Actually set the ETag header
out_headers.setHeader("ETag", http_headers.ETag('foo'))
out_headers.setHeader("Last-Modified",
946771200) # Sun, 02 Jan 2000 00:00:00 GMT
# behavior of entityExists
request.headers.setRawHeaders("If-Match", ('*', ))
self.checkPreconditions(request, response, True, responsecode.OK)
self.checkPreconditions(request,
response,
False,
responsecode.PRECONDITION_FAILED,
entityExists=False)
# tag matches
request.headers.setRawHeaders("If-Match", ('"frob", "foo"', ))
self.checkPreconditions(request, response, True, responsecode.OK)
# none match
request.headers.setRawHeaders("If-Match", ('"baz", "bob"', ))
self.checkPreconditions(request, response, False,
responsecode.PRECONDITION_FAILED)
# But if we have an error code already, ignore this header
response.code = responsecode.INTERNAL_SERVER_ERROR
self.checkPreconditions(request, response, True,
responsecode.INTERNAL_SERVER_ERROR)
response.code = responsecode.OK
# Must only compare strong tags
out_headers.setHeader("ETag", http_headers.ETag('foo', weak=True))
request.headers.setRawHeaders("If-Match", ('W/"foo"', ))
self.checkPreconditions(request, response, False,
responsecode.PRECONDITION_FAILED)
def testIfModifiedSince(self):
if time.time() < 946771200:
self.fail(
RuntimeError("Your computer's clock is way wrong, "
"this test will be invalid."))
request = http.Request(None, "GET", "/", "HTTP/1.1", 0,
http_headers.Headers())
out_headers = http_headers.Headers()
response = http.Response(responsecode.OK, out_headers, None)
# No Last-Modified => always succeed
request.headers.setRawHeaders("If-Modified-Since",
('Mon, 03 Jan 2000 00:00:00 GMT', ))
self.checkPreconditions(request, response, True, responsecode.OK)
# Set output headers
out_headers.setHeader("ETag", http_headers.ETag('foo'))
out_headers.setHeader("Last-Modified",
946771200) # Sun, 02 Jan 2000 00:00:00 GMT
request.headers.setRawHeaders("If-Modified-Since",
('Mon, 03 Jan 2000 00:00:00 GMT', ))
self.checkPreconditions(request, response, False,
responsecode.NOT_MODIFIED)
# With a non-GET method
request.method = "PUT"
self.checkPreconditions(request, response, False,
responsecode.PRECONDITION_FAILED)
request.method = "GET"
request.headers.setRawHeaders("If-Modified-Since",
('Sat, 01 Jan 2000 00:00:00 GMT', ))
self.checkPreconditions(request, response, True, responsecode.OK)
# But if we have an error code already, ignore this header
response.code = responsecode.INTERNAL_SERVER_ERROR
self.checkPreconditions(request, response, True,
responsecode.INTERNAL_SERVER_ERROR)
response.code = responsecode.OK
# invalid date => header ignored
request.headers.setRawHeaders("If-Modified-Since",
('alalalalalalalalalala', ))
self.checkPreconditions(request, response, True, responsecode.OK)
# date in the future => assume modified
request.headers.setHeader("If-Modified-Since", time.time() + 500)
self.checkPreconditions(request, response, True, responsecode.OK)
def __init__(self,
site,
method,
prepath,
uri,
length=None,
headers=None,
version=(1, 1),
content=None):
self.site = site
self.method = method
self.prepath = prepath
self.uri = uri
if headers is None:
headers = http_headers.Headers()
self.headers = headers
self.http_version = version
# Anything below here we do not pass as arguments
self.request = server.Request(self,
self.method,
self.uri,
self.http_version,
length,
self.headers,
site=self.site,
prepathuri=self.prepath)
if content is not None:
self.request.handleContentChunk(content)
self.request.handleContentComplete()
self.code = None
self.responseHeaders = None
self.data = ''
self.deferredFinish = defer.Deferred()
def getResponseFor(self,
root,
uri,
headers={},
method=None,
version=None,
prepath='',
content=None,
length=_unset):
if not isinstance(headers, http_headers.Headers):
headers = http_headers.Headers(headers)
if length is _unset:
if content is not None:
length = len(content)
else:
length = 0
if method is None:
method = self.method
if version is None:
version = self.version
cr = self.chanrequest(root, uri, length, headers, method, version,
prepath, content)
cr.request.process()
return cr.deferredFinish
def test_multipart(self):
"""
Test parsing data in multipart format: it should fill the C{files}
attribute.
"""
ctype = http_headers.MimeType('multipart', 'form-data',
(('boundary', '---weeboundary'), ))
content = """-----weeboundary\r
Content-Disposition: form-data; name="FileNameOne"; filename="myfilename"\r
Content-Type: text/html\r
\r
my great content wooo\r
-----weeboundary--\r
"""
root = resource.Resource()
request = SimpleRequest(server.Site(root), "GET", "/",
http_headers.Headers({'content-type': ctype}),
content)
def cb(ign):
self.assertEquals(request.args, {})
self.assertEquals(request.files.keys(), ['FileNameOne'])
self.assertEquals(
request.files.values()[0][0][:2],
('myfilename', http_headers.MimeType('text', 'html', {})))
f = request.files.values()[0][0][2]
self.assertEquals(f.read(), "my great content wooo")
return server.parsePOSTData(request).addCallback(cb)
def test_multipartMaxSize(self):
"""
Check that the C{maxSize} parameter makes the parsing raise an
exception if the data is too big.
"""
ctype = http_headers.MimeType('multipart', 'form-data',
(('boundary', '---weeboundary'), ))
content = """-----weeboundary\r
Content-Disposition: form-data; name="FileNameOne"; filename="myfilename"\r
Content-Type: text/html\r
\r
my great content wooo
and even more and more\r
-----weeboundary--\r
"""
root = resource.Resource()
request = SimpleRequest(server.Site(root), "GET", "/",
http_headers.Headers({'content-type': ctype}),
content)
def cb(res):
self.assertEquals(res.response.description,
"Maximum length of 10 bytes exceeded.")
return self.assertFailure(server.parsePOSTData(request, maxSize=10),
http.HTTPError).addCallback(cb)
def testImmutable(self):
h = http_headers.Headers(
handler=HeaderHandler(parsers={}, generators={}))
h.makeImmutable()
self.assertRaises(AttributeError, h.setRawHeaders, "test", [1])
self.assertRaises(AttributeError, h.setHeader, "test", 1)
self.assertRaises(AttributeError, h.removeHeader, "test")
def testWithoutHeaders(self):
request = http.Request(None, "GET", "/", "HTTP/1.1", 0,
http_headers.Headers())
out_headers = http_headers.Headers()
response = http.Response(responsecode.OK, out_headers, None)
self.checkPreconditions(request, response, True, responsecode.OK)
out_headers.setHeader("ETag", http_headers.ETag('foo'))
self.checkPreconditions(request, response, True, responsecode.OK)
out_headers.removeHeader("ETag")
out_headers.setHeader("Last-Modified",
946771200) # Sun, 02 Jan 2000 00:00:00 GMT
self.checkPreconditions(request, response, True, responsecode.OK)
out_headers.setHeader("ETag", http_headers.ETag('foo'))
self.checkPreconditions(request, response, True, responsecode.OK)
def _abortWithError(self, errorcode, text=''):
"""Handle low level protocol errors."""
headers = http_headers.Headers()
headers.setHeader('content-length', len(text) + 1)
self.abortConnection(closeWrite=False)
self.writeHeaders(errorcode, headers)
self.write(text)
self.write("\n")
self.finish()
raise AbortedException
def test_wrongContentType(self):
"""
Check that a content-type not handled raise a C{http.HTTPError}.
"""
ctype = http_headers.MimeType('application', 'foobar')
content = "key=value&multiple=two+words&multiple=more%20words"
root = resource.Resource()
request = SimpleRequest(server.Site(root), "GET", "/",
http_headers.Headers({'content-type': ctype}),
content)
return self.assertFailure(server.parsePOSTData(request),
http.HTTPError)
def testParsed(self):
parsed = parsedvalue(("value1", "value2"))
h = http_headers.Headers(
handler=HeaderHandler(parsers={}, generators={}))
h.setHeader("test", parsed)
self.assertEquals(h.hasHeader("test"), True)
self.assertEquals(h.getHeader("test"), parsed)
self.assertEquals(h.getHeader("foobar"), None)
h.removeHeader("test")
self.assertEquals(h.getHeader("test"), None)
def testRaw(self):
rawvalue = ("value1", "value2")
h = http_headers.Headers(
handler=HeaderHandler(parsers={}, generators={}))
h.setRawHeaders("test", rawvalue)
self.assertEquals(h.hasHeader("test"), True)
self.assertEquals(h.getRawHeaders("test"), rawvalue)
self.assertEquals(list(h.getAllRawHeaders()), [('Test', rawvalue)])
self.assertEquals(h.getRawHeaders("foobar"), None)
h.removeHeader("test")
self.assertEquals(h.getRawHeaders("test"), None)
def testIfRange(self):
request = http.Request(None, "GET", "/", "HTTP/1.1", 0,
http_headers.Headers())
response = TestResponse()
self.assertEquals(http.checkIfRange(request, response), True)
request.headers.setRawHeaders("If-Range", ('"foo"', ))
self.assertEquals(http.checkIfRange(request, response), False)
response.headers.setHeader("ETag", http_headers.ETag('foo'))
self.assertEquals(http.checkIfRange(request, response), True)
request.headers.setRawHeaders("If-Range", ('"bar"', ))
response.headers.setHeader("ETag", http_headers.ETag('foo'))
self.assertEquals(http.checkIfRange(request, response), False)
request.headers.setRawHeaders("If-Range", ('W/"foo"', ))
response.headers.setHeader("ETag", http_headers.ETag('foo', weak=True))
self.assertEquals(http.checkIfRange(request, response), False)
request.headers.setRawHeaders("If-Range", ('"foo"', ))
response.headers.removeHeader("ETag")
self.assertEquals(http.checkIfRange(request, response), False)
request.headers.setRawHeaders("If-Range",
('Sun, 02 Jan 2000 00:00:00 GMT', ))
response.headers.setHeader("Last-Modified",
946771200) # Sun, 02 Jan 2000 00:00:00 GMT
self.assertEquals(http.checkIfRange(request, response), True)
request.headers.setRawHeaders("If-Range",
('Sun, 02 Jan 2000 00:00:01 GMT', ))
response.headers.setHeader("Last-Modified",
946771200) # Sun, 02 Jan 2000 00:00:00 GMT
self.assertEquals(http.checkIfRange(request, response), False)
request.headers.setRawHeaders("If-Range",
('Sun, 01 Jan 2000 23:59:59 GMT', ))
response.headers.setHeader("Last-Modified",
946771200) # Sun, 02 Jan 2000 00:00:00 GMT
self.assertEquals(http.checkIfRange(request, response), False)
request.headers.setRawHeaders("If-Range",
('Sun, 01 Jan 2000 23:59:59 GMT', ))
response.headers.removeHeader("Last-Modified")
self.assertEquals(http.checkIfRange(request, response), False)
request.headers.setRawHeaders("If-Range", ('jwerlqjL#$Y*KJAN', ))
self.assertEquals(http.checkIfRange(request, response), False)
def NotModifiedResponse(oldResponse=None):
if oldResponse is not None:
headers=http_headers.Headers()
for header in (
# Required from sec 10.3.5:
'date', 'etag', 'content-location', 'expires',
'cache-control', 'vary',
# Others:
'server', 'proxy-authenticate', 'www-authenticate', 'warning'):
value = oldResponse.headers.getRawHeaders(header)
if value is not None:
headers.setRawHeaders(header, value)
else:
headers = None
return Response(code=responsecode.NOT_MODIFIED, headers=headers)
def testIfUnmodifiedSince(self):
request = http.Request(None, "GET", "/", "HTTP/1.1", 0,
http_headers.Headers())
out_headers = http_headers.Headers()
response = http.Response(responsecode.OK, out_headers, None)
# No Last-Modified => always fail.
request.headers.setRawHeaders("If-Unmodified-Since",
('Mon, 03 Jan 2000 00:00:00 GMT', ))
self.checkPreconditions(request, response, False,
responsecode.PRECONDITION_FAILED)
# Set output headers
out_headers.setHeader("ETag", http_headers.ETag('foo'))
out_headers.setHeader("Last-Modified",
946771200) # Sun, 02 Jan 2000 00:00:00 GMT
request.headers.setRawHeaders("If-Unmodified-Since",
('Mon, 03 Jan 2000 00:00:00 GMT', ))
self.checkPreconditions(request, response, True, responsecode.OK)
request.headers.setRawHeaders("If-Unmodified-Since",
('Sat, 01 Jan 2000 00:00:00 GMT', ))
self.checkPreconditions(request, response, False,
responsecode.PRECONDITION_FAILED)
# But if we have an error code already, ignore this header
response.code = responsecode.INTERNAL_SERVER_ERROR
self.checkPreconditions(request, response, True,
responsecode.INTERNAL_SERVER_ERROR)
response.code = responsecode.OK
# invalid date => header ignored
request.headers.setRawHeaders("If-Unmodified-Since",
('alalalalalalalalalala', ))
self.checkPreconditions(request, response, True, responsecode.OK)
def makeRequest(self, vars):
headers = http_headers.Headers()
http_vers = http.parseVersion(vars['SERVER_PROTOCOL'])
if http_vers[0] != 'http' or http_vers[1] > 1:
_abortWithError(
responsecode.INTERNAL_SERVER_ERROR,
"Twisted.web CGITransport: Unknown HTTP version: " %
vars['SERVER_PROTOCOL'])
secure = vars.get("HTTPS") in ("1", "on") # apache extension?
port = vars.get('SERVER_PORT') or 80
server_host = vars.get('SERVER_NAME') or vars.get(
'SERVER_ADDR') or 'localhost'
self.hostinfo = address.IPv4Address('TCP', server_host,
port), bool(secure)
self.remoteinfo = address.IPv4Address('TCP',
vars.get('REMOTE_ADDR', ''),
vars.get('REMOTE_PORT', 0))
uri = vars.get('REQUEST_URI') # apache extension?
if not uri:
qstr = vars.get('QUERY_STRING', '')
if qstr:
qstr = "?" + urllib.quote(qstr, safe="")
uri = urllib.quote(vars['SCRIPT_NAME']) + urllib.quote(
vars.get('PATH_INFO', '')) + qstr
for name, val in vars.iteritems():
if name.startswith('HTTP_'):
name = name[5:].replace('_', '-')
elif name == 'CONTENT_TYPE':
name = 'content-type'
else:
continue
headers.setRawHeaders(name, (val, ))
self._dataRemaining = int(vars.get('CONTENT_LENGTH', '0'))
self.request = self.requestFactory(self,
vars['REQUEST_METHOD'],
uri,
http_vers[1:3],
self._dataRemaining,
headers,
prepathuri=vars['SCRIPT_NAME'])
def __init__(self, site, method, uri, headers=None, content=None):
if not headers:
headers = http_headers.Headers(headers)
super(SimpleRequest, self).__init__(site=site,
chanRequest=None,
command=method,
path=uri,
version=self.clientproto,
contentLength=len(content or ''),
headers=headers)
self.stream = stream.MemoryStream(content or '')
self.remoteAddr = address.IPv4Address('TCP', '127.0.0.1', 0)
self._parseURL()
self.host = 'localhost'
self.port = 8080
def test_otherErrors(self):
"""
Test that errors durign parsing other than C{MimeFormatError} are
propagated.
"""
ctype = http_headers.MimeType('multipart', 'form-data',
(('boundary', '---weeboundary'), ))
# XXX: maybe this is not a good example
# parseContentDispositionFormData could handle this problem
content = """-----weeboundary\r
Content-Disposition: form-data; name="FileNameOne"; filename="myfilename and invalid data \r
-----weeboundary--\r
"""
root = resource.Resource()
request = SimpleRequest(server.Site(root), "GET", "/",
http_headers.Headers({'content-type': ctype}),
content)
return self.assertFailure(server.parsePOSTData(request), ValueError)
def test_multipartWithNoBoundary(self):
"""
If the boundary type is not specified, parsing should fail with a
C{http.HTTPError}.
"""
ctype = http_headers.MimeType('multipart', 'form-data')
content = """-----weeboundary\r
Content-Disposition: form-data; name="FileNameOne"; filename="myfilename"\r
Content-Type: text/html\r
\r
my great content wooo\r
-----weeboundary--\r
"""
root = resource.Resource()
request = SimpleRequest(server.Site(root), "GET", "/",
http_headers.Headers({'content-type': ctype}),
content)
return self.assertFailure(server.parsePOSTData(request),
http.HTTPError)
def test_urlencoded(self):
"""
Test parsing data in urlencoded format: it should end in the C{args}
attribute.
"""
ctype = http_headers.MimeType('application', 'x-www-form-urlencoded')
content = "key=value&multiple=two+words&multiple=more%20words"
root = resource.Resource()
request = SimpleRequest(server.Site(root), "GET", "/",
http_headers.Headers({'content-type': ctype}),
content)
def cb(ign):
self.assertEquals(request.files, {})
self.assertEquals(request.args, {
'multiple': ['two words', 'more words'],
'key': ['value']
})
return server.parsePOSTData(request).addCallback(cb)
def test_mimeParsingError(self):
"""
A malformed content should result in a C{http.HTTPError}.
The tested content has an invalid closing boundary.
"""
ctype = http_headers.MimeType('multipart', 'form-data',
(('boundary', '---weeboundary'), ))
content = """-----weeboundary\r
Content-Disposition: form-data; name="FileNameOne"; filename="myfilename"\r
Content-Type: text/html\r
\r
my great content wooo\r
-----weeoundary--\r
"""
root = resource.Resource()
request = SimpleRequest(server.Site(root), "GET", "/",
http_headers.Headers({'content-type': ctype}),
content)
return self.assertFailure(server.parsePOSTData(request),
http.HTTPError)
def testNoResponse(self):
# Ensure that passing etag/lastModified arguments instead of response works.
request = http.Request(None, "GET", "/", "HTTP/1.1", 0,
http_headers.Headers())
request.method = "PUT"
request.headers.setRawHeaders("If-None-Match", ('"foo"', ))
self.checkPreconditions(request, None, True, responsecode.OK)
self.checkPreconditions(request,
None,
False,
responsecode.PRECONDITION_FAILED,
etag=http_headers.ETag('foo'),
lastModified=946771200)
# Make sure that, while you shoudn't do this, that it doesn't cause an error
request.method = "GET"
self.checkPreconditions(request,
None,
False,
responsecode.NOT_MODIFIED,
etag=http_headers.ETag('foo'))
def submitNext(_):
headers = http_headers.Headers(
headers={'Accept-Language': {
'en': 1.0
}},
rawHeaders={'X-My-Other-Header': ['socks']})
req = http.ClientRequest('GET', '/', headers, None)
cxn.server.data = ''
d = cxn.client.submitRequest(req, closeAfter=True)
self.assertReceived(cxn, 'GET / HTTP/1.1', [
'Connection: close', 'X-My-Other-Header: socks',
'Accept-Language: en'
])
self.writeLines(cxn, ('HTTP/1.1 200 OK', 'Content-Length: 0',
'Connection: close', '\r\n'))
return d
def test_maxFields(self):
"""
Check that the C{maxSize} parameter makes the parsing raise an
exception if the data contains too many fields.
"""
ctype = http_headers.MimeType('multipart', 'form-data',
(('boundary', '---xyz'), ))
content = """-----xyz\r
Content-Disposition: form-data; name="foo"\r
\r
Foo Bar\r
-----xyz\r
Content-Disposition: form-data; name="foo"\r
\r
Baz\r
-----xyz\r
Content-Disposition: form-data; name="file"; filename="filename"\r
Content-Type: text/html\r
\r
blah\r
-----xyz\r
Content-Disposition: form-data; name="file"; filename="filename"\r
Content-Type: text/plain\r
\r
bleh\r
-----xyz--\r
"""
root = resource.Resource()
request = SimpleRequest(server.Site(root), "GET", "/",
http_headers.Headers({'content-type': ctype}),
content)
def cb(res):
self.assertEquals(res.response.description,
"Maximum number of fields 3 exceeded")
return self.assertFailure(server.parsePOSTData(request, maxFields=3),
http.HTTPError).addCallback(cb)
def __init__(self):
self.headers = http_headers.Headers()
self.stream = stream.ProducerStream()
def raw(d):
headers = http_headers.Headers()
for k, v in d.iteritems():
headers.setRawHeaders(k, [v])
return headers
def testIfNoneMatch(self):
request = http.Request(None, "GET", "/", "HTTP/1.1", 0,
http_headers.Headers())
out_headers = http_headers.Headers()
response = http.Response(responsecode.OK, out_headers, None)
request.headers.setRawHeaders("If-None-Match", ('"foo"', ))
self.checkPreconditions(request, response, True, responsecode.OK)
out_headers.setHeader("ETag", http_headers.ETag('foo'))
out_headers.setHeader("Last-Modified",
946771200) # Sun, 02 Jan 2000 00:00:00 GMT
# behavior of entityExists
request.headers.setRawHeaders("If-None-Match", ('*', ))
request.method = "PUT"
self.checkPreconditions(request, response, False,
responsecode.PRECONDITION_FAILED)
request.method = "GET"
self.checkPreconditions(request, response, False,
responsecode.NOT_MODIFIED)
self.checkPreconditions(request,
response,
True,
responsecode.OK,
entityExists=False)
# tag matches
request.headers.setRawHeaders("If-None-Match", ('"frob", "foo"', ))
request.method = "PUT"
self.checkPreconditions(request, response, False,
responsecode.PRECONDITION_FAILED)
request.method = "GET"
self.checkPreconditions(request, response, False,
responsecode.NOT_MODIFIED)
# now with IMS, also:
request.headers.setRawHeaders("If-Modified-Since",
('Mon, 03 Jan 2000 00:00:00 GMT', ))
request.method = "PUT"
self.checkPreconditions(request, response, False,
responsecode.PRECONDITION_FAILED)
request.method = "GET"
self.checkPreconditions(request, response, False,
responsecode.NOT_MODIFIED)
request.headers.setRawHeaders("If-Modified-Since",
('Sat, 01 Jan 2000 00:00:00 GMT', ))
self.checkPreconditions(request, response, True, responsecode.OK)
request.headers.removeHeader("If-Modified-Since")
# none match
request.headers.setRawHeaders("If-None-Match", ('"baz", "bob"', ))
self.checkPreconditions(request, response, True, responsecode.OK)
# now with IMS, also:
request.headers.setRawHeaders("If-Modified-Since",
('Mon, 03 Jan 2000 00:00:00 GMT', ))
self.checkPreconditions(request, response, True, responsecode.OK)
request.headers.setRawHeaders("If-Modified-Since",
('Sat, 01 Jan 2000 00:00:00 GMT', ))
self.checkPreconditions(request, response, True, responsecode.OK)
request.headers.removeHeader("If-Modified-Since")
# But if we have an error code already, ignore this header
response.code = responsecode.INTERNAL_SERVER_ERROR
self.checkPreconditions(request, response, True,
responsecode.INTERNAL_SERVER_ERROR)
response.code = responsecode.OK
# Weak tags okay for GET
out_headers.setHeader("ETag", http_headers.ETag('foo', weak=True))
request.headers.setRawHeaders("If-None-Match", ('W/"foo"', ))
self.checkPreconditions(request, response, False,
responsecode.NOT_MODIFIED)
# Weak tags not okay for other methods
request.method = "PUT"
out_headers.setHeader("ETag", http_headers.ETag('foo', weak=True))
request.headers.setRawHeaders("If-None-Match", ('W/"foo"', ))
self.checkPreconditions(request, response, True, responsecode.OK)
def generateHeader(name, val):
head = http_headers.Headers(handler=http_headers.DefaultHTTPHandler)
head.setHeader(name, val)
return head.getRawHeaders(name)
