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Viewing changes to MoinMoin/request/request_cgi.py

  • Committer: Bazaar Package Importer
  • Author(s): Jonas Smedegaard
  • Date: 2008-06-22 21:17:13 UTC
  • mto: This revision was merged to the branch mainline in revision 18.
  • Revision ID: james.westby@ubuntu.com-20080622211713-inlv5k4eifxckelr
Import upstream version 1.7.0

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MoinMoin/request/request_cgi.py
 
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# -*- coding: iso-8859-1 -*-
 
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"""
 
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    MoinMoin - CGI Request Implementation for std. CGI web servers
 
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    like Apache or IIS or others.
 
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    @copyright: 2001-2003 by Juergen Hermann <jh@web.de>,
 
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                2003-2006 MoinMoin:ThomasWaldmann
 
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    @license: GNU GPL, see COPYING for details.
 
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"""
 
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import sys, os, cgi
 
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from MoinMoin import log
 
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logging = log.getLogger(__name__)
 
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from MoinMoin.request import RequestBase, RemoteClosedConnection
 
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class Request(RequestBase):
 
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    """ specialized on CGI requests """
 
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    def __init__(self, properties={}):
 
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        try:
 
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            # force input/output to binary
 
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            if sys.platform == "win32":
 
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                import msvcrt
 
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                msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
 
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                msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
 
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            self._setup_vars_from_std_env(os.environ)
 
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            RequestBase.__init__(self, properties)
 
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        except Exception, err:
 
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            self.fail(err)
 
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    def _setup_args_from_cgi_form(self):
 
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        """ Override to create cgi form """
 
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        form = cgi.FieldStorage(keep_blank_values=1)
 
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        return RequestBase._setup_args_from_cgi_form(self, form)
 
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    def read(self, n):
 
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        """ Read from input stream. """
 
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        if n is None:
 
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            logging.warning("calling request.read(None) might block")
 
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            return sys.stdin.read()
 
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        else:
 
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            return sys.stdin.read(n)
 
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    def write(self, *data):
 
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        """ Write to output stream. """
 
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        data = self.encode(data)
 
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        try:
 
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            sys.stdout.write(data)
 
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        except Exception:
 
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            raise RemoteClosedConnection()
 
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    def flush(self):
 
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        sys.stdout.flush()
 
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    def finish(self):
 
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        RequestBase.finish(self)
 
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        # flush the output, ignore errors caused by the user closing the socket
 
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        try:
 
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            sys.stdout.flush()
 
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        except IOError, ex:
 
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            import errno
 
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            if ex.errno != errno.EPIPE:
 
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                raise
 
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    def _emit_http_headers(self, headers):
 
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        """ private method to send out preprocessed list of HTTP headers """
 
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        for header in headers:
 
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            self.write("%s\r\n" % header)
 
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        self.write("\r\n")
 
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