Redirecting

# cgiutils.py # # Copyright 2001,2002 Wichert Akkerman # # This file is free software; you can redistribute it and/or modify it # under the terms of version 2 of the GNU General Public License as # published by the Free Software Foundation. # # This program 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 # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # Calculate shared library dependencies """Utility functions to make writing CGI scripts in python easier. """ __docformat__ = "epytext en" # Import all system packages we need import os, sys, types, cgi, re, Cookie def setcookie(key, value): """Output HTTP header to store a cookie @param key: cookie name @type key: string @param value: data to store in the cookie @type value: string """ c=Cookie.SimpleCookie() c[key]=value print c def extractcookies(dict): """Extract HTTP cookies. Extract all http cookies that the browser passed to use and merge them in a dictionary. @param dict: dictionary to store cookies in @type dict: dictionary""" return dict.update(GetCookies()) def extractcgiparams(dict): """Extract form parameters Extract all CGI parameters that the browser passed to use and merge them in a dictionary. @param dict: dictionary to store CGI PUT/POST parameters in @type dict: dictionary. """ dict.update(GetParameters()) def GetCookies(): """Extract HTTP cookies. Extract all http cookies that the browser passed to use and return them as a dictionary. @return: cookies @rtype: dictionary """ dict={} if os.environ.has_key("HTTP_COOKIE"): c=Cookie.SimpleCookie(os.environ.get("HTTP_COOKIE")) for key in c.keys(): dict[key]=c[key].value return dict def GetParameters(): """Extract CGI parameters. Extract all CGI parameters that the browser passed to use and return them as a dictionary. @return: CGI parameters @rtype: dictionary """ dict={} form=cgi.FieldStorage() for frm in form.keys(): if type(form[frm]) is types.ListType: dict[frm]=map(lambda x: x.value, form[frm]) else: dict[frm]=form[frm].value return dict def scriptname(script): """Return a link to another CGI script in the same directory. The SCRIPT_NAME environment variable is used to determine the location of the current CGI. @param script: name of CGI script to link to @type script: string @return: relative URL to CGI @rtype: string """ if os.environ.has_key("SCRIPT_NAME"): base=re.sub("[^/]*$", script, os.environ["SCRIPT_NAME"]) else: base=script return base def redirect(url): """Output redirector. Generate HTTP headers and a XHTML page to redirect a browser to another URL. @param url: URL to redirect to @type url: string """ print "Content-Type: text/html" print "Location: %s" % url print "Status: 302\n" print ''' Redirecting

Redirecting. If this does not work automatically please go to %s manually.

''' % (url, url) def getsessionkey(Parameters): """Extract a session key. This function should not exist. """ if Parameters.has_key("SESSION"): return Parameters["SESSION"] redirect("/nocookies.xhtml") sys.exit(0) class Request: """CGI request object. This class extracts all the available information about a CGI requests and stores that in its instance. """ def __init__(self): self.params=GetParameters() self.cookies=GetCookies() for key in [ "SERVER_PROTOCOL", "SERVER_PORT", "REQUEST_URI", "REQUEST_METHOD", "PATH_INFO", "PATH_TRANSLATED", "SCRIPT_NAME", "QUERY_STRING", "REMOTE_HOST", "REMOTE_ADDR", "AUTH_TYPE", "REMOTE_USER", "REMOTE_IDENT", "CONTENT_TYPE", "CONTENT_LENGTH" ] : if os.environ.has_key(key): setattr(self, key.lower(), os.environ[key]) self.headers={} for key in filter(lambda x: x.startswith("HTTP_"), os.environ.keys()): self.headers[key[5:].lower().replace("_", "-")]=os.environ[key]