def __call__(self, request):
data = {}
response = []
def start_response(status, response_headers, exc_info=None):
data["status"] = status
data["headers"] = response_headers
return response.append
app_response = self.wsgi_application(
WSGIContainer.environ(request), start_response)
response.extend(app_response)
body = b("").join(response)
if hasattr(app_response, "close"):
app_response.close()
if not data: raise Exception("WSGI app did not call start_response")
status_code = int(data["status"].split()[0])
headers = data["headers"]
header_set = set(k.lower() for (k,v) in headers)
body = escape.utf8(body)
if "content-length" not in header_set:
headers.append(("Content-Length", str(len(body))))
if "content-type" not in header_set:
headers.append(("Content-Type", "text/html; charset=UTF-8"))
if "server" not in header_set:
headers.append(("Server", "TornadoServer/%s" % tornado.version))
parts = [escape.utf8("HTTP/1.1 " + data["status"] + "\r\n")]
for key, value in headers:
parts.append(escape.utf8(key) + b(": ") + escape.utf8(value) + b("\r\n"))
parts.append(b("\r\n"))
parts.append(body)
request.write(b("").join(parts))
request.finish()
self._log(status_code, request)
def deferred_result_available(result, key, ret, request):
logger.info('got result for key {key} of {result}', key=key, result=result)
ret[key] = result
ret = resolve_all_functions(ret, request)
if twserver.NOT_DONE_YET != ret:
# ok, finally done, let's return it
logger.info('writing HTTP result of {ret}', ret=ret)
request.write(json.dumps(ret).encode())
request.finish()
return
def render_GET(self, request):
self.info(f'render GET {request}')
request.setResponseCode(200)
if self.contentType is not None:
request.setHeader(b'Content-Type', self.contentType)
request.write(b'')
headers = request.getAllHeaders()
if ('connection' in headers and headers['connection'] == 'close'):
pass
self.start(request)
return server.NOT_DONE_YET
def render_GET(self, request):
self.info('render GET %r', request)
request.setResponseCode(200)
if hasattr(self, 'contentType'):
request.setHeader('Content-Type', self.contentType)
request.write('')
headers = request.getAllHeaders()
if ('connection' in headers and headers['connection'] == 'close'):
pass
self.start(request)
return server.NOT_DONE_YET
def got_streams(streams):
if self.stream_id not in streams:
self.warning("stream not found for %s@%s", self.url, self.stream_id)
request.setResponseCode(http.NOT_FOUND)
request.write('')
return
request.setHeader('Content-Type', self.content_type)
request.setResponseCode(http.OK)
if request.method == 'HEAD':
request.write('')
return
d_open_stream = threads.deferToThread(streams[self.stream_id].open)
d_open_stream.addCallback(stream_opened)
def got_streams(streams):
if self.stream_id not in streams:
self.warning(f'stream not found for '
f'{self.url}@{self.stream_id}')
request.setResponseCode(http.NOT_FOUND)
request.write(b'')
return
request.setHeader(b'Content-Type',
self.content_type.encode('ascii'))
request.setResponseCode(http.OK)
if request.method == b'HEAD':
request.write(b'')
return
d_open_stream = threads.deferToThread(streams[self.stream_id].open)
d_open_stream.addCallback(stream_opened)
def render_GET(self, request):
self.info(f'render GET {request}')
request.setResponseCode(200)
if hasattr(self, 'contentType'):
request.setHeader(b'Content-Type', self.contentType)
request.write(b'')
headers = request.getAllHeaders()
if ('connection' in headers and headers['connection'] == 'close'):
pass
if self.requests:
if self.streamheader:
self.debug('writing streamheader')
for h in self.streamheader:
request.write(h.data)
self.requests.append(request)
else:
self.parse_pipeline()
self.start(request)
return server.NOT_DONE_YET
def __call__(self, request):
data = {}
def start_response(status, response_headers):
data["status"] = status
data["headers"] = HTTPHeaders(response_headers)
body = "".join(self.wsgi_application(
WSGIContainer.environ(request), start_response))
if not data: raise Exception("WSGI app did not call start_response")
status_code = int(data["status"].split()[0])
headers = data["headers"]
body = escape.utf8(body)
headers["Content-Length"] = str(len(body))
headers.setdefault("Content-Type", "text/html; charset=UTF-8")
headers.setdefault("Server", "TornadoServer/0.1")
parts = ["HTTP/1.1 " + data["status"] + "\r\n"]
for key, value in headers.items():
parts.append(escape.utf8(key) + ": " + escape.utf8(value) + "\r\n")
parts.append("\r\n")
parts.append(body)
request.write("".join(parts))
request.finish()
self._log(status_code, request)
def deferred_result_error(failure, request):
logger.failure("Logging an uncaught exception", failure=failure)
request.setResponseCode(400)
request.write(json.dumps({'error': 'internal error'}).encode())
request.finish()
return
def render_HEAD(self, request):
self.info(f'render HEAD {request}')
request.setResponseCode(200)
request.setHeader(b'Content-Type', self.contentType)
request.write(b'')
def render_HEAD(self, request):
self.info('render HEAD %r', request)
request.setResponseCode(200)
request.setHeader('Content-Type', self.contentType)
request.write('')
def handle(self):
self.close_connection = 0
timeout = DEFAULT_TIMEOUT
while not self.close_connection:
if timeout == 0:
break
cancel = api.exc_after(timeout, Timeout)
try:
self.raw_requestline = self.rfile.readline(MAX_REQUEST_LINE)
if self.raw_requestline is not None:
if len(self.raw_requestline) == MAX_REQUEST_LINE:
# Someone sent a request line which is too
# large. Be helpful and tell them.
self.write_bad_request(414, 'Request-URI Too Long')
self.close_connection = True
continue
except socket.error as e:
if e[0] in CONNECTION_CLOSED:
self.close_connection = True
cancel.cancel()
continue
except Timeout:
self.close_connection = True
continue
except Exception as e:
try:
if e[0][0][0].startswith('SSL'):
print("SSL Error:", e[0][0])
self.close_connection = True
cancel.cancel()
continue
except Exception as f:
print("Exception in ssl test:", f)
pass
raise e
cancel.cancel()
if not self.raw_requestline or not self.parse_request():
self.close_connection = True
continue
self.set_response_code(None, 200, None)
request = Request(self, self.command, self.path, self.headers)
request.set_header('Server', self.version_string())
request.set_header('Date', self.date_time_string())
try:
timeout = int(request.get_header('keep-alive', timeout))
except TypeError as ValueError:
pass
try:
try:
try:
self.server.site.handle_request(request)
except ErrorResponse as err:
request.response(code=err.code,
reason_phrase=err.reason,
headers=err.headers,
body=err.body)
finally:
# clean up any timers that might have been left around by the handling code
#api.get_hub().cancel_timers(api.getcurrent())
pass
# throw an exception if it failed to write a body
if not request.response_written():
raise NotImplementedError(
"Handler failed to write response to request: %s" %
request)
if not hasattr(self, '_cached_body'):
try:
request.read_body() ## read & discard body
except:
pass
except socket.error as e:
# Broken pipe, connection reset by peer
if e[0] in CONNECTION_CLOSED:
#print "Remote host closed connection before response could be sent"
pass
else:
raise
except Exception as e:
self.server.log_message(
"Exception caught in HttpRequest.handle():\n")
self.server.log_exception(*sys.exc_info())
if not request.response_written():
request.response(500)
request.write('Internal Server Error')
self.close()
raise e # can't do a plain raise since exc_info might have been cleared
self.close()
