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