include/wiki/engine.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2008 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 require_once 'wiki.inc.php';
  23
  24 $n    = wiki_pagename();
  25 if (!$n) {
  26     pl_redirect('');
  27 }
  28
  29 new_skinned_page('core/wiki.tpl');
  30 $perms = wiki_get_perms($n);
  31 $feed  = false;
  32
  33 // Check user perms
  34 switch (Env::v('action')) {
  35   case 'rss': case 'atom': case 'sdf': case 'dc':
  36     wiki_apply_feed_perms($perms[0]);
  37     $feed = true;
  38   case '': case 'search':
  39     break;
  40
  41   case 'edit':
  42     wiki_apply_perms($perms[1]);
  43     break;
  44
  45   default:
  46     wiki_apply_perms('admin');
  47     break;
  48 }
  49
  50 if ($p = Post::v('setrperms')) {
  51     wiki_apply_perms('admin');
  52     if (wiki_set_perms($n, $p, $perms[1])) {
  53         $perms = wiki_get_perms($n);
  54         $page->trigSuccess('Permissions mises à jour');
  55     }
  56 }
  57
  58 if ($p = Post::v('setwperms')) {
  59     wiki_apply_perms('admin');
  60     if (wiki_set_perms($n, $perms[0], $p)) {
  61         $perms = wiki_get_perms($n);
  62         $page->trigSuccess('Permissions mises à jour');
  63     }
  64 }
  65
  66 // Generate cache even if we don't have access rights
  67 $wiki_cache   = wiki_work_dir().'/cache_'.wiki_filename($n).'.tpl';
  68 $cache_exists = file_exists($wiki_cache);
  69 if (Env::v('action') || !$cache_exists) {
  70     if ($cache_exists && !$feed) {
  71         unlink($wiki_cache);
  72         $files = glob($globals->spoolroot . '/spool/templates_c/*cache_' . wiki_filename($n) . '.tpl*');
  73         foreach ($files as $file) {
  74             unlink($file);
  75         }
  76     }
  77
  78     // we leave pmwiki do whatever it wants and store everything
  79     ob_start();
  80     require_once($globals->spoolroot.'/wiki/pmwiki.php');
  81
  82     $wikiAll = ob_get_clean();
  83     pl_clear_errors();
  84
  85     // the pmwiki skin we are using (almost empty) has these keywords:
  86     $i = strpos($wikiAll, "<!--/HeaderText-->");
  87     $j = strpos($wikiAll, "<!--/PageLeftFmt-->", $i);
  88 }
  89
  90 $wiki_exists = file_exists(wiki_work_dir() . '/' . wiki_filename($n));
  91
  92 if ($feed) {
  93     $wikiAll = str_replace('dc:contributor', 'author', $wikiAll);
  94     $wikiAll = preg_replace('!<author>.*?\..*?\.(\d{4})\|(.*?)</author>!u', '<author>$2 (X$1)</author>', $wikiAll);
  95     $wikiAll = str_replace('<link>./', '<link>' . $globals->baseurl . '/' . $platal->ns, $wikiAll);
  96     echo $wikiAll;
  97     pl_clear_errors();
  98     exit;
  99 } elseif (Env::v('action')) {
 100     $page->assign('pl_extra_header', substr($wikiAll, 0, $i));
 101     $wikiAll = substr($wikiAll, $j);
 102 } else {
 103     if (!$cache_exists && $wiki_exists) {
 104         $wikiAll = substr($wikiAll, $j);
 105         wiki_putfile($wiki_cache, $wikiAll);
 106     } elseif ($cache_exists) {
 107         $wikiAll = file_get_contents($wiki_cache);
 108     } elseif (S::has_perms()) {
 109         $wikiAll = "<p>La page de wiki $n n'existe pas. "
 110                  . "Il te suffit de <a href='" . str_replace('.', '/', $n) . "?action=edit'>l'éditer</a></p>";
 111     } else {
 112         $page->changeTpl('core/404.tpl');
 113     }
 114 }
 115
 116 // Check user perms
 117 wiki_apply_perms($perms[0]);
 118
 119 $page->assign('perms', $perms);
 120 $page->assign('perms_opts', wiki_perms_options());
 121
 122 $page->assign('canedit',    wiki_may_have_perms($perms[1]));
 123 $page->assign('has_perms',  wiki_may_have_perms('admin'));
 124
 125 $page->assign('wikipage', str_replace('.', '/', $n));
 126 if (!$feed && $perms[1] == 'admin' && !Env::v('action') && $wiki_exists) {
 127     $page->assign('pmwiki_cache', $wiki_cache);
 128 } else {
 129     $page->assign('pmwiki',   $wikiAll);
 130     $page->assign('text', true);
 131 }
 132 $page->addCssLink('wiki.css');
 133 $page->addJsLink('wiki.js');
 134 if (!Env::v('action')) {
 135     $url = '/' . str_replace('.', '/', $n) . '?action=rss';
 136     if (S::logged()) {
 137         $url .= '&user=' . S::v('forlife') . '&hash=' . S::v('core_rss_hash');
 138     }
 139     $page->setRssLink($n, $url);
 140 }
 141
 142 $page->run();
 143
 144 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 145 ?>