1 # DeGAL - A pretty simple web image gallery

     2 # Copyright (C) 2007 Tero Marttila

     3 # http://marttila.de/~terom/degal/

     4 #

     5 # This program is free software; you can redistribute it and/or modify

     6 # it under the terms of the GNU General Public License as published by

     7 # the Free Software Foundation; either version 2 of the License, or

     8 # (at your option) any later version.

     9 #

    10 # This program is distributed in the hope that it will be useful,

    11 # but WITHOUT ANY WARRANTY; without even the implied warranty of

    12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    13 # GNU General Public License for more details.

    14 #

    15 # You should have received a copy of the GNU General Public License

    16 # along with this program; if not, write to the

    17 # Free Software Foundation, Inc.,

    18 # 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

    19 #

    20 

    21 import cgi

    22 import Cookie

    23 import os

    24 

    25 vars = cgi.FieldStorage()

    26 

    27 # the cookie with the user's current series

    28 cookie = Cookie.SimpleCookie(os.environ.get('HTTP_COOKIE', None))

    29 

    30 class token (object) :

    31     pass

    32 

    33 REQUIRED_PARAM = token()

    34 

    35 def get_str (key, default=REQUIRED_PARAM) :

    36     if key in vars :

    37         return vars[key].value.decode('utf8', 'replace')

    38     elif default is REQUIRED_PARAM :

    39         raise ValueError("Required param %s" % key)

    40     else :

    41         return default

    42 

    43 def get_str_list (key, default=REQUIRED_PARAM) :

    44     if key in vars :

    45         return [val.decode('utf8', 'replace') for val in vars.getlist(key)]

    46     elif default is REQUIRED_PARAM :

    47         raise ValueError("Required param %s" % key)

    48     else :

    49         return default

    50 

    51 def get_int (key, default=REQUIRED_PARAM) :

    52     if key in vars :

    53         return int(vars[key].value)

    54     elif default is REQUIRED_PARAM :

    55         raise ValueError("Required param %s" % key)

    56     else :

    57         return default

    58 

    59 def get_int_list (key, default=REQUIRED_PARAM) :

    60     if key in vars :

    61       return [int(val) for val in vars.getlist(key)]

    62     elif default is REQUIRED_PARAM :

    63         raise ValueError("Required param %s" % key)

    64     else :

    65         return default