def _generate_headers(self):
lines = [' '.join((self.request.version, str(self._status_code), httplib.responses[self._status_code]))]
lines.extend(['{}: {}'.format(n, v) for n, v in self._headers.items()])
for cookie in self._cookies.values():
LOGGER.debug(to_str('Set-Cookie: ' + cookie.OutputString(None)))
lines.append(to_str('Set-Cookie: ' + cookie.OutputString(None)))
return '\r\n'.join(lines) + '\r\n\r\n'
def _generate_headers(self):
lines = [self.request.version + " " + str(self._status_code) + " " +
httplib.responses[self._status_code]]
lines.extend(['%s: %s' % (n, v) for n, v in self._headers.iteritems()])
for cookie in self._cookies.values():
LOGGER.debug(to_str("Set-Cookie: " + cookie.OutputString(None)))
lines.append(to_str("Set-Cookie: " + cookie.OutputString(None)))
return '\r\n'.join(lines) + '\r\n\r\n'
def redirect_to(url, permanent=False, response=None):
response = response or get_current_http_response()
if response.headers_written:
raise Exception("Cannot redirect after headers have been written")
response.status_code = httplib.MOVED_PERMANENTLY if permanent else httplib.FOUND
# Remove whitespace
url = re.sub(br"[\x00-\x20]+", "", to_str(url))
response.set_header("Location", urlparse.urljoin(to_str(response.request.uri), url))
end_http_request_processing()
def clear_header(self, name):
"""Clears an outgoing header, undoing a previous `set_header` call.
Note that this method does not apply to multi-valued headers
set by `add_header`.
"""
name = to_str(name)
if name in self._headers:
del self._headers[name]
def set_header(self, name, value):
if self.headers_written:
LOGGER.warn('setting header too late: header to set is %(name)s=%(value)s\n%(headers_written)s', {
'name': name,
'value': value,
'headers_written': self.headers_written
})
if isinstance(value, datetime):
t = calendar.timegm(value.utctimetuple())
value = email.utils.formatdate(t, localtime=False, usegmt=True)
elif isinstance(value, int) or isinstance(value, long):
value = str(value)
else:
value = to_str(value)
# If \n is allowed into the header, it is possible to inject
# additional headers or split the request. Also cap length to
# prevent obviously erroneous values.
if INVALID_HEADER_CHAR_RE.search(value):
raise ValueError('Unsafe header value %r', value)
self._headers[to_str(name)] = value
def write(self, chunk):
assert not self._finished
chunk = to_str(chunk)
self._write_buffer.append(chunk)
