include/wiki.inc.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2007 Polytechnique.org                              *
   4  *  http://opensource.polytechnique.org/                                   *
   5  *                                                                         *
   6  *  This program is free software; you can redistribute it and/or modify   *
   7  *  it under the terms of the GNU General Public License as published by   *
   8  *  the Free Software Foundation; either version 2 of the License, or      *
   9  *  (at your option) any later version.                                    *
  10  *                                                                         *
  11  *  This program is distributed in the hope that it will be useful,        *
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  14  *  GNU General Public License for more details.                           *
  15  *                                                                         *
  16  *  You should have received a copy of the GNU General Public License      *
  17  *  along with this program; if not, write to the Free Software            *
  18  *  Foundation, Inc.,                                                      *
  19  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
  20  ***************************************************************************/
  21
  22 function wiki_pagename()
  23 {
  24     if (!Get::v('n')) {
  25         return null;
  26     }
  27
  28     $words = explode('/', trim(Get::v('n'), '/'));
  29     if (count($words) == 2) {
  30         return join('.', $words);
  31     }
  32
  33     array_unshift($words, $words[0]);
  34     $b = array_pop($words);
  35     $a = array_pop($words);
  36
  37     pl_redirect($a.'/'.$b);
  38 }
  39
  40 function wiki_filename($s)
  41 {
  42     if (@iconv('utf-8', 'utf-8', $s) == $s) {
  43         return $s;
  44     }
  45     return utf8_encode($s);
  46 }
  47
  48 function wiki_work_dir()
  49 {
  50     global $globals;
  51     return $globals->spoolroot.'/spool/wiki.d';
  52 }
  53
  54 function wiki_clear_all_cache()
  55 {
  56     system('rm -f '.wiki_work_dir().'/cache_*');
  57 }
  58
  59 function wiki_perms_options() {
  60     return array('public' => 'Public', 'logged' => 'Connecté',
  61                   'mdp' => 'Authentifié', 'admin' => 'Admin');
  62 }
  63
  64 function wiki_get_perms($n)
  65 {
  66     $file  = wiki_work_dir().'/'.wiki_filename(str_replace('/', '.', $n));
  67     $lines = explode("\n", @file_get_contents($file));
  68     foreach ($lines as $line) {
  69         @list($k, $v) = explode('=', $line, 2);
  70         if ($k == 'platal_perms') {
  71             return explode(':', $v);
  72         }
  73     }
  74     return array('logged', 'admin');
  75 }
  76
  77 function wiki_putfile($f, $s)
  78 {
  79     $fp = fopen($f, 'w');
  80     fputs($fp, $s);
  81     fclose($fp);
  82 }
  83
  84 function wiki_set_perms($n, $pr, $pw)
  85 {
  86     $file  = wiki_work_dir().'/'.wiki_filename(str_replace('/', '.', $n));
  87     if (!file_exists($file)) {
  88         return false;
  89     }
  90
  91     $p = $pr . ':' . $pw;
  92
  93     $lines = explode("\n", file_get_contents($file));
  94     foreach ($lines as $i => $line) {
  95         list($k, $v) = explode('=', $line, 2);
  96         if ($k == 'platal_perms') {
  97             $lines[$i] = 'platal_perms='.$p;
  98             wiki_putfile($file, join("\n", $lines));
  99             return true;
 100         }
 101     }
 102
 103     array_splice($lines, 1, 0, array('platal_perms='.$p));
 104     wiki_putfile($file, join("\n", $lines));
 105     return true;
 106 }
 107
 108 function wiki_may_have_perms($perm) {
 109     switch ($perm) {
 110       case 'public': return true;
 111       case 'logged': return S::logged();
 112       case 'mdp':    return S::logged();
 113       default:       return S::has_perms();
 114     }
 115 }
 116
 117 function wiki_apply_perms($perm) {
 118     global $page, $platal, $globals;
 119
 120     switch ($perm) {
 121       case 'public':
 122         return;
 123
 124       case 'logged':
 125         if (!call_user_func(array($globals->session, 'doAuthCookie'))) {
 126             $platal =  empty($GLOBALS['IS_XNET_SITE']) ? new Platal() : new Xnet();
 127             $platal->force_login($page);
 128         }
 129         return;
 130
 131       default:
 132         if (!call_user_func(array($globals->session, 'doAuth'))) {
 133             $platal = empty($GLOBALS['IS_XNET_SITE']) ? new Platal() : new Xnet();
 134             $platal->force_login($page);
 135         }
 136         if ($perm == 'admin') {
 137             check_perms();
 138         }
 139         return;
 140     }
 141 }
 142
 143 function wiki_require_page($pagename)
 144 {
 145     global $globals;
 146     $pagename_slashes = str_replace('.','/',$pagename);
 147     $pagename_dots = str_replace('/','.',$pagename);
 148     if (is_file(wiki_work_dir().'/cache_'.$pagename_dots.'.tpl')) return;
 149     system('wget '.$globals->baseurl.'/'.$pagename_slashes.' -O /dev/null');
 150 }
 151
 152 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 153 ?>