GROT 239: Re: [Tutor] Bug with fork / socket from CGI

[Lloyd Kvam]

 >>>         sock.close()
Looking at the source code, error 9 comes from a closedsocket object.
     class _closedsocket:
         def __getattr__(self, name):
             raise error(9, 'Bad file descriptor')

You can't close sock and then use it to make the connection.

Jonathan Hayward http://JonathansCorner.com wrote:

> Lloyd Kvam wrote:
> 
>> I did not attempt to figure out your problem,  the cgitb module with
>> its traceback facility usually helps a great deal with debugging an
>> errant cgi script.
> 
> 
> When I used cgitb, it gave errno 9, 'Bad file descriptor' to this line:
> 
>            sock.connect((configuration.get_search_server_ip(), \
>              configuration.get_search_server_port()))
> 
> Evaluated, that comes to:
> 
> sock.connect(("127.0.0.1", 1374))
> 
> Cgitb has helped me know what I need to be using right, but it won't 
> explain the socket concept I'm missing--that's why I e-mailed the list. 
> Do you or anyone else on the list know what needs to be changed about 
> the socket so the above line will be corrected?
> 
> TIA
> 
>>
>> However, wouldn't it be simpler to use fastCGI or an equivalent 
>> connection
>> between the web server and the persistent process?
> 
> 
> I looked in to it. That's great if I want to have my private server 
> running things, but I want to have something that people can install PnP 
> without repeating the extras I set up.
> 
>>
>>>     def get_page_from_oracle(self):
>>>         self.check_and_start_oracle()
>>>         sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>>>         sockIn = sock.makefile("r")
>>>         sockOut = sock.makefile("wb")
>>>         sock.close()
>>>         try:
>>>             sock.connect((configuration.get_search_server_ip(), \
>>>               configuration.get_search_server_port()))
>>>             for current_environment_key in os.environ.keys():
>>>                 sockOut.write("environmental_variable " + \
>>>                   current_environment_key + "\r\n")
>>>                 cPickle.dump(os.environ[current_environment_key], 
>>> sockOut)
>>>             for cgi_key in cgi.FieldStorage().keys():
>>>                 sockOut.write("cgi_value " + cgi_key + "\r\n")
>>>                 cPickle.dump(cgi.FieldStorage[cgi_key])
>>>             sockOut.write("\r\n")
>>>             result = cPickle.load(sockIn)
>>>             sockOut.close()
>>>             sockIn.close()
>>>         except socket.error, e:
>>>             return "Content-type: text/html\n\n<h1>There was an error 
>>> loading this page.</h1>" + str(e)
> 
> 

-- 
Lloyd Kvam
Venix Corp.
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Lebanon, NH 03766-1358

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