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pylonsfckeditor / pylonsfckeditor / lib / fckeditor / fckconnector.py

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#!/usr/bin/env python

"""
FCKeditor - The text editor for Internet - http://www.fckeditor.net
Copyright (C) 2003-2009 Frederico Caldeira Knabben

== BEGIN LICENSE ==

Licensed under the terms of any of the following licenses at your
choice:

- GNU General Public License Version 2 or later (the "GPL")
http://www.gnu.org/licenses/gpl.html

- GNU Lesser General Public License Version 2.1 or later (the "LGPL")
http://www.gnu.org/licenses/lgpl.html

- Mozilla Public License Version 1.1 or later (the "MPL")
http://www.mozilla.org/MPL/MPL-1.1.html

== END LICENSE ==

Base Connector for Python (CGI and WSGI).

See config.py for configuration settings

"""
import cgi, os

from fckutil import *
from fckcommands import *     # default command's implementation
from fckoutput import *     # base http, xml and html output mixins
import config as Config

class FCKeditorConnectorBase( object ):
    "The base connector class. Subclass it to extend functionality (see Zope example)"

    def __init__(self, environ=None):
        "Constructor: Here you should parse request fields, initialize variables, etc."
        self.request = FCKeditorRequest(environ) # Parse request
        self.headers = []                        # Clean Headers
        if environ:
            self.environ = environ
        else:
            self.environ = os.environ

    # local functions

    def setHeader(self, key, value):
        self.headers.append ((key, value))
        return

class FCKeditorRequest(object):
    "A wrapper around the request object"
    def __init__(self, environ):
        if environ: # WSGI
            if 'webob._parsed_post_vars' in environ:
                self.request = environ['webob._parsed_post_vars'][0]
            else:
                self.request = cgi.FieldStorage(fp=environ['wsgi.input'], environ=environ, keep_blank_values=1)
            self.environ = environ
        else: # plain old cgi
            self.environ = os.environ
            self.request = cgi.FieldStorage()
        if 'REQUEST_METHOD' in self.environ and 'QUERY_STRING' in self.environ:
            if self.environ['REQUEST_METHOD'].upper()=='POST':
                # we are in a POST, but GET query_string exists
                # cgi parses by default POST data, so parse GET QUERY_STRING too
                self.get_request = cgi.FieldStorage(fp=None,
                            environ={
                            'REQUEST_METHOD':'GET',
                            'QUERY_STRING':self.environ['QUERY_STRING'],
                            },
                            )
        else:
            self.get_request={}

    def has_key(self, key):
        return self.request.has_key(key) or self.get_request.has_key(key)

    def get(self, key, default=None):
        if key in self.request.keys():
            field = self.request[key]
        elif key in self.get_request.keys():
            field = self.get_request[key]
        else:
            return default
        if hasattr(field,"filename") and field.filename: #file upload, do not convert return value
            return field
        else:
            return field.value