# DeGAL - A pretty simple web image gallery
# Copyright (C) 2007 Tero Marttila
# http://marttila.de/~terom/degal/
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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.
#

import cgi
import Cookie
import os

vars = cgi.FieldStorage()

# the cookie with the user's current series
cookie = Cookie.SimpleCookie(os.environ.get('HTTP_COOKIE', None))

class token (object) :
    pass

REQUIRED_PARAM = token()

def get_str (key, default=REQUIRED_PARAM) :
    if key in vars :
        return vars[key].value.decode('utf8', 'replace')
    elif default is REQUIRED_PARAM :
        raise ValueError("Required param %s" % key)
    else :
        return default

def get_int (key, default=REQUIRED_PARAM) :
    if key in vars :
        return int(vars[key].value)
    elif default is REQUIRED_PARAM :
        raise ValueError("Required param %s" % key)
    else :
        return default