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, $wp->writePerms())) {
  46         Platal::page()->trigSuccess('Permissions mises à jour');
  47     }
  48 }
  49
  50 if ($p = Post::v('setwperms')) {
  51     $wp->applyPerms('admin');
  52     if ($wp->setPerms($wp->readPerms(), $p)) {
  53         Platal::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         $wp->removePageCache();
  63         $cache_exists = false;
  64     }
  65
  66     // we leave pmwiki do whatever it wants and store everything
  67     ob_start();
  68     require_once($globals->spoolroot . '/wiki/pmwiki.php');
  69
  70     $wikiAll = ob_get_clean();
  71     pl_clear_errors();
  72
  73     // the pmwiki skin we are using (almost empty) has these keywords:
  74     $i = strpos($wikiAll, "<!--/HeaderText-->");
  75     $j = strpos($wikiAll, "<!--/PageLeftFmt-->", $i);
  76 }
  77
  78 $wiki_exists = file_exists($wp->filename());
  79
  80 $page =& Platal::page();
  81 $page->coreTpl('wiki.tpl');
  82
  83 if ($feed) {
  84     $wikiAll = str_replace('dc:contributor', 'author', $wikiAll);
  85     $wikiAll = preg_replace('!<author>.*?\..*?\.(\d{4})\|(.*?)</author>!u', '<author>$2 (X$1)</author>', $wikiAll);
  86     $wikiAll = str_replace('<link>./', '<link>' . $globals->baseurl . '/' . $platal->ns, $wikiAll);
  87     echo $wikiAll;
  88     pl_clear_errors();
  89     exit;
  90 } elseif (Env::v('action')) {
  91     $page->assign('pl_extra_header', substr($wikiAll, 0, $i));
  92     $wikiAll = substr($wikiAll, $j);
  93 } else {
  94     if (!$cache_exists && $wiki_exists) {
  95         $wikiAll = substr($wikiAll, $j);
  96         file_put_contents($wiki_cache, $wikiAll);
  97     } elseif ($cache_exists) {
  98         $wikiAll = file_get_contents($wiki_cache);
  99     } elseif (S::has_perms()) {
 100         $wikiAll = "<p>La page de wiki $n n'existe pas. "
 101                  . "Il te suffit de <a href='" . str_replace('.', '/', $n) . "?action=edit'>l'éditer</a></p>";
 102     } else {
 103         global $platal;
 104         $platal->error404();
 105     }
 106 }
 107
 108 // Check user perms
 109 $wp->applyReadPerms();
 110
 111 $page->assign('perms', array($wp->readPerms(), $wp->writePerms()));
 112 $page->assign('perms_opts', PlWikiPage::permOptions());
 113
 114 $page->assign('canedit',    $wp->canWrite());
 115 $page->assign('has_perms',  S::has_perms());
 116
 117 $page->assign('wikipage', str_replace('.', '/', $n));
 118 if (!$feed && $wp->writePerms() == 'admin' && !Env::v('action') && $wiki_exists) {
 119     $page->assign('pmwiki_cache', $wiki_cache);
 120 } else {
 121     $page->assign('pmwiki',   $wikiAll);
 122     $page->assign('text', true);
 123 }
 124 $page->addCssLink('wiki.css');
 125 $page->addJsLink('wiki.js');
 126 if (!Env::v('action')) {
 127     $url = '/' . str_replace('.', '/', $n) . '?action=rss';
 128     if (S::logged()) {
 129         if (S::user()) {
 130             $url .= '&user=' . S::user()->login() . '&hash=' . S::v('core_rss_hash');
 131         } else {
 132             // TODO(vzanotti): trash that code when forlife support will be gone.
 133             $url .= '&user=' . S::v('forlife') . '&hash=' . S::v('core_rss_hash');
 134         }
 135     }
 136     $page->setRssLink($n, $url);
 137 }
 138
 139 $page->run();
 140
 141 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 142 ?>