#-*- coding: iso-8859-1 -*- # Copyright (C) 2006 Martin Glueck. All rights reserved # 351 Bienterra Trail, #2, Rockford, IL, 61107, martin.glueck@insightbb.com # **************************************************************************** # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Library General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Library General Public License for more details. # # You should have received a copy of the GNU Library General Public # License along with this library; if not, write to the Free # Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. # **************************************************************************** # #++ # Name # django.core.handlers.CGI # # Purpose # A CGI Handler for Django # # Revision Dates # 14-Jul-2006 (MG) Creation # ««revision-date»»··· #-- import django import sys from django import http from django.core.handlers.base import BaseHandler from django.core import signals from django.dispatch import dispatcher from django.utils import datastructures __all__ = ["CGI_Handler"] # See http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html STATUS_CODE_TEXT = \ { 100 : "CONTINUE" , 101 : "SWITCHING PROTOCOLS" , 200 : "OK" , 201 : "CREATED" , 202 : "ACCEPTED" , 203 : "NON-AUTHORITATIVE INFORMATION" , 204 : "NO CONTENT" , 205 : "RESET CONTENT" , 206 : "PARTIAL CONTENT" , 300 : "MULTIPLE CHOICES" , 301 : "MOVED PERMANENTLY" , 302 : "FOUND" , 303 : "SEE OTHER" , 304 : "NOT MODIFIED" , 305 : "USE PROXY" , 306 : "RESERVED" , 307 : "TEMPORARY REDIRECT" , 400 : "BAD REQUEST" , 401 : "UNAUTHORIZED" , 402 : "PAYMENT REQUIRED" , 403 : "FORBIDDEN" , 404 : "NOT FOUND" , 405 : "METHOD NOT ALLOWED" , 406 : "NOT ACCEPTABLE" , 407 : "PROXY AUTHENTICATION REQUIRED" , 408 : "REQUEST TIMEOUT" , 409 : "CONFLICT" , 410 : "GONE" , 411 : "LENGTH REQUIRED" , 412 : "PRECONDITION FAILED" , 413 : "REQUEST ENTITY TOO LARGE" , 414 : "REQUEST-URI TOO LONG" , 415 : "UNSUPPORTED MEDIA TYPE" , 416 : "REQUESTED RANGE NOT SATISFIABLE" , 417 : "EXPECTATION FAILED" , 500 : "INTERNAL SERVER ERROR" , 501 : "NOT IMPLEMENTED" , 502 : "BAD GATEWAY" , 503 : "SERVICE UNAVAILABLE" , 504 : "GATEWAY TIMEOUT" , 505 : "HTTP VERSION NOT SUPPORTED" } class CGI_Request (http.HttpRequest) : """A Request from a normal CGI interface.""" _request = None _get = None _post = None _cookies = None _files = None def __init__ (self, environ) : ### don't chain up, we set the dict's here as properties ### super (CGI_Request, self).__init__ (self, environ) self.environ = environ self.path = environ.get ("REDIRECT_URL", "/") self.META = environ self.method = environ.get ("REQUEST_METHOD", "GET").upper() # end def __init__ def __repr__(self): return "\n".join \ ( ( "<%s" % (self.__class__.__name__) , " GET: %r" % (self.GET) , " POST: %r" % (self.POST) , " COOKIES: %r" % (self.COOKIES) , " META: %r" % (self.META) , ">" ) ) # end def __repr__ def get_full_path(self): return '%s%s' % \ ( self.path , self.environ.get ("QUERY_STRING", "") and ("?" + self.environ ["QUERY_STRING"]) or '' ) # end def get_full_path def _load_post_and_files(self): # Populates self._post and self._files if self.method == "POST" : if self.environ.get ("CONTENT_TYPE", "").startswith ("multipart") : header_dict = dict\ ( [ (k, v) for k, v in self.environ.iteritems () if k.startswith('HTTP_') ] ) header_dict ["Content-Type"] = self.environ.get \ ("CONTENT_TYPE", "") (self._post, self._files ) = http.parse_file_upload (header_dict, self.raw_post_data) else : self._post = http.QueryDict (self.raw_post_data) self._files = datastructures.MultiValueDict () else: self._post = http.QueryDict ("") self._files = datastructures.MultiValueDict () # end def _load_post_and_files def _get_request(self): if self._request is None : self._request = datastructures.MergeDict (self.POST, self.GET) return self._request # end def _get_request def _get_get(self): if self._get is None : self._get = http.QueryDict (self.environ.get ("QUERY_STRING", "")) return self._get # end def _get_get def _set_get(self, get) : self._get = get # end def _set_get def _get_post(self): if self._post is None: self._load_post_and_files () return self._post # end def _get_post def _set_post(self, post): self._post = post # end def _set_post def _get_cookies(self): if self._cookies is None : self._cookies = http.parse_cookie \ (self.environ.get ("HTTP_COOKIE", "")) return self._cookies # end def _get_cookies def _set_cookies(self, cookies): self._cookies = cookies # end def _set_cookies def _get_files(self): if self._files is None : self._load_post_and_files () return self._files # end def _get_files def _get_raw_post_data(self): try: return self._raw_post_data except AttributeError: self._raw_post_data = sys.stdin.read \ (int (self.environ ["CONTENT_LENGTH"])) return self._raw_post_data # end def _get_raw_post_data GET = property (_get_get, _set_get) POST = property (_get_post, _set_post) COOKIES = property (_get_cookies, _set_cookies) FILES = property (_get_files) REQUEST = property (_get_request) raw_post_data = property (_get_raw_post_data) # end class CGI_Request class CGI_Handler (BaseHandler) : """The handler for a CGI request.""" def __call__ (self, environ, start_response) : from django.conf import settings # Set up middleware if needed. We couldn't do this earlier, because # settings weren't available. if self._request_middleware is None: self.load_middleware () dispatcher.send (signal = signals.request_started) try: request = CGI_Request (environ) response = self.get_response (request.path, request) # Apply response middleware for middleware_method in self._response_middleware: response = middleware_method (request, response) finally: dispatcher.send (signal = signals.request_finished) status_text = STATUS_CODE_TEXT.get \ (response.status_code, "UNKNOWN STATUS CODE") status = '%s %s' % (response.status_code, status_text) response_headers = response.headers.items () for c in response.cookies.values (): response_headers.append (('Set-Cookie', c.output(header=''))) start_response (status, response_headers) return response.iterator # end def __call__ # end class CGI_Handler ### __END__ django.core.handerls.CGI