lib/main.php

   1 <?php
   2 rcs_id('$Id: main.php,v 1.25 2002-01-19 07:21:58 dairiki Exp $');
   3
   4 include "lib/config.php";
   5 include "lib/stdlib.php";
   6 require_once('lib/Request.php');
   7 require_once("lib/WikiUser.php");
   8 require_once('lib/WikiDB.php');
   9
  10 if (defined('THEME')) {
  11     include("themes/" . THEME . "/themeinfo.php");
  12 }
  13 if (empty($Theme)) {
  14     include("themes/default/themeinfo.php");
  15 }
  16 assert(!empty($Theme));
  17
  18
  19 function deduce_pagename ($request) {
  20     if ($request->getArg('pagename'))
  21         return $request->getArg('pagename');
  22
  23     if (USE_PATH_INFO) {
  24         $pathinfo = $request->get('PATH_INFO');
  25         if (ereg('^' . PATH_INFO_PREFIX . '(..*)$', $pathinfo, $m))
  26             return $m[1];
  27     }
  28
  29     $query_string = $request->get('QUERY_STRING');
  30     if (preg_match('/^[^&=]+$/', $query_string))
  31         return urldecode($query_string);
  32
  33     return _("HomePage");
  34 }
  35
  36 function is_safe_action ($action) {
  37     if (! ZIPDUMP_AUTH and ($action == 'zip' || $action == 'xmldump'))
  38         return true;
  39     return in_array ( $action, array('browse', 'info',
  40                                      'diff',   'search',
  41                                      'edit',   'save',
  42                                      'setprefs') );
  43 }
  44
  45 function authlevelForAction ($action) {
  46     if (is_safe_action($action))
  47         return WIKIAUTH_ANON;
  48     else
  49         return WIKIAUTH_ADMIN;
  50 }
  51
  52 function main ($request) {
  53
  54
  55     if (USE_PATH_INFO && ! $request->get('PATH_INFO')
  56         && ! preg_match(',/$,', $request->get('REDIRECT_URL'))) {
  57         $request->redirect(SERVER_URL
  58                            . preg_replace('/(\?|$)/', '/\1',
  59                                           $request->get('REQUEST_URI'),
  60                                           1));
  61         exit;
  62     }
  63
  64     $request->setArg('pagename', deduce_pagename($request));
  65     global $pagename;               // FIXME: can we make this non-global?
  66     $pagename = $request->getArg('pagename');
  67
  68     $action = $request->getArg('action');
  69     if (!$action) {
  70         $action = 'browse';
  71         $request->setArg('action', $action);
  72     }
  73
  74     global $user;               // FIXME: can we make this non-global?
  75     $user = new WikiUser($request);
  76     $user->requireAuth( authlevelForAction($action) );
  77
  78
  79     //FIXME:
  80     //if ($user->is_authenticated())
  81     //  $LogEntry->user = $user->getId();
  82
  83     // All requests require the database
  84     global $dbi;                // FIXME: can we keep this non-global?
  85     $dbi = WikiDB::open($GLOBALS['DBParams']);
  86
  87     // FIXME: need something more robust here...
  88     if ( $action == 'browse' && $request->getArg('pagename') == _("HomePage") ) {
  89         // if there is no HomePage, create a basic set of Wiki pages
  90         if ( ! $dbi->isWikiPage(_("HomePage")) ) {
  91             include_once("lib/loadsave.php");
  92             SetupWiki($dbi);
  93             ExitWiki();
  94         }
  95     }
  96
  97     // FIXME: I think this is redundant.
  98     //if (!is_safe_action($action))
  99     //    $user->must_be_admin($action);
 100
 101     // FIXME: this should be moved higher in the logic.
 102     if (isset($DisabledActions) && in_array($action, $DisabledActions))
 103         ExitWiki(sprintf(_("Action %s is disabled in this wiki."), $action));
 104
 105     // Enable the output of most of the warning messages.
 106     // The warnings will screw up zip files and setpref though.
 107     global $ErrorManager;
 108     if ($action != 'zip' && $action != 'setprefs') {
 109         $ErrorManager->setPostponedErrorMask(E_NOTICE|E_USER_NOTICE);
 110     }
 111
 112
 113     switch ($action) {
 114     case 'edit':
 115         $request->compress_output();
 116         include "lib/editpage.php";
 117         editPage($dbi, $request);
 118         break;
 119
 120     case 'search':
 121         // This is obsolete: reformulate URL and redirect.
 122         // FIXME: this whole section should probably be deleted.
 123         if ($request->getArg('searchtype') == 'full') {
 124             $search_page = _("FullTextSearch");
 125         }
 126         else {
 127             $search_page = _("TitleSearch");
 128         }
 129         $request->redirect(WikiURL($search_page,
 130                                    array('s' => $request->getArg('searchterm')),
 131                                    'absolute_url'));
 132         break;
 133
 134     case 'save':
 135         $request->compress_output();
 136         include "lib/savepage.php";
 137         savePage($dbi, $request);
 138         break;
 139     case 'diff':
 140         $request->compress_output();
 141         include_once "lib/diff.php";
 142         showDiff($dbi, $request);
 143         break;
 144
 145     case 'zip':
 146         include_once("lib/loadsave.php");
 147         MakeWikiZip($dbi, $request);
 148         // I don't think it hurts to add cruft at the end of the zip file.
 149         echo "\n========================================================\n";
 150         echo "PhpWiki " . PHPWIKI_VERSION . " source:\n$GLOBALS[RCS_IDS]\n";
 151         break;
 152
 153     /* Not yet implemented:
 154     case 'xmldump':
 155         // FIXME:
 156         $limit = 1;
 157         if ($request->getArg('include') == 'all')
 158             $limit = 0;
 159         require_once("lib/libxml.php");
 160         $xmlwriter = new WikiXmlWriter;
 161         $xmlwriter->begin();
 162         $xmlwriter->writeComment("PhpWiki " . PHPWIKI_VERSION
 163                                  . " source:\n$RCS_IDS\n");
 164         $xmlwriter->writeDatabase($dbi, $limit);
 165         $xmlwriter->end();
 166         break;
 167     */
 168
 169     case 'upload':
 170         include_once("lib/loadsave.php");
 171         LoadPostFile($dbi, $request);
 172         break;
 173
 174     case 'dumpserial':
 175         include_once("lib/loadsave.php");
 176         DumpToDir($dbi, $request);
 177         break;
 178
 179     case 'loadfile':
 180         include_once("lib/loadsave.php");
 181         LoadFileOrDir($dbi, $request);
 182         break;
 183
 184     case 'remove':
 185         include 'lib/removepage.php';
 186         break;
 187
 188     case 'lock':
 189     case 'unlock':
 190         // FIXME: This check is redundant.
 191         $user->requireAuth(WIKIAUTH_ADMIN);
 192         $page = $dbi->getPage($request->getArg('pagename'));
 193         $page->set('locked', $action == 'lock');
 194
 195         $request->compress_output();
 196         include_once("lib/display.php");
 197         displayPage($dbi, $request);
 198         break;
 199
 200     case 'setprefs':
 201         $prefs = $user->getPreferences();
 202         $edit_area_width = $request->getArg('edit_area_width');
 203         $edit_area_height = $request->getArg('edit_area_height');
 204         if ($edit_area_width)
 205             $prefs['edit_area.width'] = $edit_area_width;
 206         if ($edit_area_height)
 207             $prefs['edit_area.height'] = $edit_area_height;
 208         $user->setPreferences($prefs);
 209         $ErrorManager->setPostponedErrorMask(E_ALL & ~E_NOTICE);
 210
 211         $request->compress_output();
 212         include_once("lib/display.php");
 213         displayPage($dbi, $request);
 214         break;
 215
 216     case 'browse':
 217     case 'login':
 218     case 'logout':
 219
 220         $request->compress_output();
 221         include_once("lib/display.php");
 222         displayPage($dbi, $request);
 223         break;
 224
 225     default:
 226         echo QElement('p', sprintf(_("Bad action: '%s'"), urlencode($action)));
 227         break;
 228     }
 229     ExitWiki();
 230 }
 231
 232 $request = new Request;
 233 main($request);
 234
 235
 236 // Local Variables:
 237 // mode: php
 238 // tab-width: 8
 239 // c-basic-offset: 4
 240 // c-hanging-comment-ender-p: nil
 241 // indent-tabs-mode: nil
 242 // End:
 243 ?>