include/wiki.inc.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2006 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     if (!Get::get('n')) {
  24         return null;
  25     }
  26
  27     $words = explode('/', trim(Get::get('n'), '/'));
  28     if (count($words) == 2) {
  29         return join('.', $words);
  30     }
  31
  32     array_unshift($words, $words[0]);
  33     $b = array_pop($words);
  34     $a = array_pop($words);
  35
  36     pl_redirect($a.'/'.$b);
  37 }
  38
  39 function wiki_work_dir() {
  40     global $globals;
  41     return $globals->spoolroot.'/spool/wiki.d';
  42 }
  43
  44 function wiki_clear_all_cache()
  45 {
  46     system('rm -f '.wiki_work_dir().'/cache_*');
  47 }
  48
  49 function wiki_get_perms($n)
  50 {
  51     $file  = wiki_work_dir().'/'.str_replace('/', '.', $n);
  52     $lines = explode("\n", @file_get_contents($file));
  53     foreach ($lines as $line) {
  54         list($k, $v) = explode('=', $line, 2);
  55         if ($k == 'platal_perms') {
  56             return explode(':', $v);
  57         }
  58     }
  59     return array('logged', 'admin');
  60 }
  61
  62 function wiki_putfile($f, $s)
  63 {
  64     $fp = fopen($f, 'w');
  65     fputs($fp, $s);
  66     fclose($fp);
  67 }
  68
  69 function wiki_set_perms($n, $pr, $pw)
  70 {
  71     $file  = wiki_work_dir().'/'.str_replace('/', '.', $n);
  72     if (!file_exists($file))
  73         return false;
  74
  75     $p = $pr . ':' . $pw;
  76
  77     $lines = explode("\n", file_get_contents($file));
  78     foreach ($lines as $i => $line) {
  79         list($k, $v) = explode('=', $line, 2);
  80         if ($k == 'platal_perms') {
  81             $lines[$i] = 'platal_perms='.$p;
  82             wiki_putfile($file, join("\n", $lines));
  83             return true;
  84         }
  85     }
  86
  87     array_splice($lines, 1, 0, array('platal_perms='.$p));
  88     wiki_putfile($file, join("\n", $lines));
  89     return true;
  90 }
  91
  92 function wiki_may_have_perms($perm) {
  93     switch ($perm) {
  94       case 'public': return true;
  95       case 'logged': return S::logged();
  96       case 'mdp':    return S::logged();
  97       default:       return S::has_perms();
  98     }
  99 }
 100
 101 function wiki_apply_perms($perm) {
 102     global $page, $platal;
 103
 104     switch ($perm) {
 105       case 'public':
 106         return;
 107
 108       case 'logged':
 109         if (!XorgSession::doAuthCookie()) {
 110             $platal = new Platal();
 111             $platal->force_login($page);
 112         }
 113         return;
 114
 115       default:
 116         if (!XorgSession::doAuth()) {
 117             $platal = new Platal();
 118             $platal->force_login($page);
 119         }
 120         if ($perm == 'admin') {
 121             check_perms();
 122         }
 123         return;
 124     }
 125 }
 126
 127 ?>