def echo(sock):
with closing(sock):
bufsize = sock.getsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF)
while True:
data = greennet.recv(sock, bufsize)
if not data:
break
greennet.sendall(sock, data)
def write(self, data):
if self.headers is None:
raise AssertionError('write() before start_response()')
elif not self.headers_sent:
self._write_headers()
self.bytes_sent += len(data)
if self.chunked:
data = '%x\r\n' % (len(data),) + data + '\r\n'
greennet.sendall(self.sock, data)
def _write_headers(self):
self.headers_sent = True
if self.environ['webskewer.http_version'] > (0,9):
missing = set(['server', 'date', 'content-length'])
headers = []
for header in self.headers:
lower = header[0].lower()
if lower in missing:
missing.remove(lower)
headers.append('%s: %s\r\n' % header)
add_headers = []
if 'content-length' in missing and not self.status.startswith('304'):
if self.environ['webskewer.http_version'] > (1,0):
add_headers.append('Transfer-Encoding: chunked\r\n')
self.chunked = True
else:
self.environ['HTTP_CONNECTION'] = 'close'
if 'date' in missing:
add_headers.append('Date: %s\r\n' % (now_1123(),))
if 'server' in missing:
add_headers.append('Server: webskewer/%d.%d\r\n' % __version__)
out = ''.join(['HTTP/1.1 %s\r\n' % (self.status,)] +
add_headers + headers + ['\r\n'])
greennet.sendall(self.sock, out)
def handle(self):
resp = None
try:
resp = self.application(self.environ, self.start_response)
for data in resp:
if data:
self.write(data)
if not self.headers_sent:
self._write_headers()
except Exception:
print >> sys.stderr, log_exc(self.environ['REMOTE_ADDR'])
if self.headers_sent:
return True # signal caller to close connection
self.application = ServerError()
return self.handle()
finally:
if hasattr(resp, 'close'):
resp.close()
if self.chunked:
greennet.sendall(self.sock, '0\r\n\r\n')
if not 'webskewer.bad_request' in self.environ:
print log_req(self.environ, self.status, self.headers, self.bytes_sent)
for _ in self.environ['wsgi.input']:
pass