using HTTPHandler cause Django server side shows http 400 and Invalid HTTP_HOST header message

[iMath]

On Tuesday, April 11, 2017 at 12:00:27 AM UTC+8, iMath wrote:
> > Are you sure you posted the code you are actually using? Because the 
> > error message suggests a difference.
> > 
> I am sure !
> 
> As I have tested: If I pass the IP address of my web server to the host parameter of HTTPHandler, the server side would show http 400 and Invalid HTTP_HOST header message , 
>  

Besides the http 400 and Invalid HTTP_HOST header message , there are also following exceptions 


Invalid HTTP_HOST header: '112.74.98.187:8001,112.74.98.187'. The domain name pr                                                                             ovided is not valid according to RFC 1034/1035.
[10/Apr/2017 15:38:04] "GET /VideoParser/lYYDownloaderClientLog/?funcName=%3Cmod                                                                             ule%3E&lineno=26&levelname=ERROR&name=__main__&stack_info=None&args=%28%29&modul                                                                             e=a&pathname=C%3A%5CUsers%5Ci%5CDocuments%5CTencent+Files%5C2281570025%5CFileRec                                                                             v%5Ca.py&process=6636&thread=6972&created=1491838715.9931207&msecs=993.120670318                                                                             6035&msg=testing+remote+logging&exc_info=None&relativeCreated=64.00370597839355&                                                                             filename=a.py&threadName=MainThread&processName=MainProcess&levelno=40&exc_text=                                                                             None HTTP/1.1" 400 66752
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 138, in run
    self.finish_response()
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 180, in finish_respo                                                                             nse
    self.write(data)
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 279, in write
    self._write(data)
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 453, in _write
    result = self.stdout.write(data)
  File "/usr/local/lib/python3.6/socketserver.py", line 775, in write
    self._sock.sendall(b)
ConnectionResetError: [Errno 104] Connection reset by peer
[10/Apr/2017 15:38:04] "GET /VideoParser/lYYDownloaderClientLog/?funcName=%3Cmod                                                                             ule%3E&lineno=26&levelname=ERROR&name=__main__&stack_info=None&args=%28%29&modul                                                                             e=a&pathname=C%3A%5CUsers%5Ci%5CDocuments%5CTencent+Files%5C2281570025%5CFileRec                                                                             v%5Ca.py&process=6636&thread=6972&created=1491838715.9931207&msecs=993.120670318                                                                             6035&msg=testing+remote+logging&exc_info=None&relativeCreated=64.00370597839355&                                                                             filename=a.py&threadName=MainThread&processName=MainProcess&levelno=40&exc_text=                                                                             None HTTP/1.1" 500 59
----------------------------------------
Exception happened during processing of request from ('117.136.84.223', 49862)
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 138, in run
    self.finish_response()
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 180, in finish_respo                                                                             nse
    self.write(data)
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 279, in write
    self._write(data)
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 453, in _write
    result = self.stdout.write(data)
  File "/usr/local/lib/python3.6/socketserver.py", line 775, in write
    self._sock.sendall(b)
ConnectionResetError: [Errno 104] Connection reset by peer

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 141, in run
    self.handle_error()
  File "/usr/local/lib/python3.6/site-packages/django/core/servers/basehttp.py",                                                                              line 95, in handle_error
    super(ServerHandler, self).handle_error()
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 368, in handle_error
    self.finish_response()
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 180, in finish_respo                                                                             nse
    self.write(data)
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 274, in write
    self.send_headers()
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 331, in send_headers
    if not self.origin_server or self.client_is_modern():
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 344, in client_is_mo                                                                             dern
    return self.environ['SERVER_PROTOCOL'].upper() != 'HTTP/0.9'
TypeError: 'NoneType' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/socketserver.py", line 639, in process_request_                                                                             thread
    self.finish_request(request, client_address)
  File "/usr/local/lib/python3.6/socketserver.py", line 361, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/local/lib/python3.6/socketserver.py", line 696, in __init__
    self.handle()
  File "/usr/local/lib/python3.6/site-packages/django/core/servers/basehttp.py",                                                                              line 174, in handle
    handler.run(self.server.get_app())
  File "/usr/local/lib/python3.6/wsgiref/handlers.py", line 144, in run
    self.close()
  File "/usr/local/lib/python3.6/wsgiref/simple_server.py", line 35, in close
    self.status.split(' ',1)[0], self.bytes_sent
AttributeError: 'NoneType' object has no attribute 'split'
----------------------------------------