lib/main.php

   1 <?php
   2 rcs_id('$Id: main.php,v 1.26 2002-01-21 06:55:47 dairiki Exp $');
   3
   4
   5 include "lib/config.php";
   6 include "lib/stdlib.php";
   7 require_once('lib/Request.php');
   8 require_once("lib/WikiUser.php");
   9 require_once('lib/WikiDB.php');
  10
  11 if (defined('THEME')) {
  12     include("themes/" . THEME . "/themeinfo.php");
  13 }
  14 if (empty($Theme)) {
  15     include("themes/default/themeinfo.php");
  16 }
  17 assert(!empty($Theme));
  18
  19
  20 function deduce_pagename ($request) {
  21     if ($request->getArg('pagename'))
  22         return $request->getArg('pagename');
  23
  24     if (USE_PATH_INFO) {
  25         $pathinfo = $request->get('PATH_INFO');
  26         if (ereg('^' . PATH_INFO_PREFIX . '(..*)$', $pathinfo, $m))
  27             return $m[1];
  28     }
  29
  30     $query_string = $request->get('QUERY_STRING');
  31     if (preg_match('/^[^&=]+$/', $query_string))
  32         return urldecode($query_string);
  33
  34     return _("HomePage");
  35 }
  36
  37 function is_safe_action ($action) {
  38     if (! ZIPDUMP_AUTH and ($action == 'zip' || $action == 'xmldump'))
  39         return true;
  40     return in_array ( $action, array('browse', 'info',
  41                                      'diff',   'search',
  42                                      'edit',   'save',
  43                                      'setprefs') );
  44 }
  45
  46 function authlevelForAction ($action) {
  47     if (is_safe_action($action))
  48         return WIKIAUTH_ANON;
  49     else
  50         return WIKIAUTH_ADMIN;
  51 }
  52
  53 function main ($request) {
  54
  55
  56     if (USE_PATH_INFO && ! $request->get('PATH_INFO')
  57         && ! preg_match(',/$,', $request->get('REDIRECT_URL'))) {
  58         $request->redirect(SERVER_URL
  59                            . preg_replace('/(\?|$)/', '/\1',
  60                                           $request->get('REQUEST_URI'),
  61                                           1));
  62         exit;
  63     }
  64
  65     $request->setArg('pagename', deduce_pagename($request));
  66     global $pagename;               // FIXME: can we make this non-global?
  67     $pagename = $request->getArg('pagename');
  68
  69     $action = $request->getArg('action');
  70     if (!$action) {
  71         $action = 'browse';
  72         $request->setArg('action', $action);
  73     }
  74
  75     global $user;               // FIXME: can we make this non-global?
  76     $user = new WikiUser($request);
  77     $user->requireAuth( authlevelForAction($action) );
  78
  79
  80     //FIXME:
  81     //if ($user->is_authenticated())
  82     //  $LogEntry->user = $user->getId();
  83
  84     // All requests require the database
  85     global $dbi;                // FIXME: can we keep this non-global?
  86     $dbi = WikiDB::open($GLOBALS['DBParams']);
  87
  88     // FIXME: need something more robust here...
  89     if ( $action == 'browse' && $request->getArg('pagename') == _("HomePage") ) {
  90         // if there is no HomePage, create a basic set of Wiki pages
  91         if ( ! $dbi->isWikiPage(_("HomePage")) ) {
  92             include_once("lib/loadsave.php");
  93             SetupWiki($dbi);
  94             ExitWiki();
  95         }
  96     }
  97
  98     // FIXME: I think this is redundant.
  99     //if (!is_safe_action($action))
 100     //    $user->must_be_admin($action);
 101
 102     // FIXME: this should be moved higher in the logic.
 103     if (isset($DisabledActions) && in_array($action, $DisabledActions))
 104         ExitWiki(sprintf(_("Action %s is disabled in this wiki."), $action));
 105
 106     // Enable the output of most of the warning messages.
 107     // The warnings will screw up zip files and setpref though.
 108     global $ErrorManager;
 109     if ($action != 'zip' && $action != 'setprefs') {
 110         $ErrorManager->setPostponedErrorMask(E_NOTICE|E_USER_NOTICE);
 111     }
 112
 113
 114     switch ($action) {
 115     case 'edit':
 116         $request->compress_output();
 117         include "lib/editpage.php";
 118         editPage($dbi, $request);
 119         break;
 120
 121     case 'search':
 122         // This is obsolete: reformulate URL and redirect.
 123         // FIXME: this whole section should probably be deleted.
 124         if ($request->getArg('searchtype') == 'full') {
 125             $search_page = _("FullTextSearch");
 126         }
 127         else {
 128             $search_page = _("TitleSearch");
 129         }
 130         $request->redirect(WikiURL($search_page,
 131                                    array('s' => $request->getArg('searchterm')),
 132                                    'absolute_url'));
 133         break;
 134
 135     case 'save':
 136         $request->compress_output();
 137         include "lib/savepage.php";
 138         savePage($dbi, $request);
 139         break;
 140     case 'diff':
 141         $request->compress_output();
 142         include_once "lib/diff.php";
 143         showDiff($dbi, $request);
 144         break;
 145
 146     case 'zip':
 147         include_once("lib/loadsave.php");
 148         MakeWikiZip($dbi, $request);
 149         // I don't think it hurts to add cruft at the end of the zip file.
 150         echo "\n========================================================\n";
 151         echo "PhpWiki " . PHPWIKI_VERSION . " source:\n$GLOBALS[RCS_IDS]\n";
 152         break;
 153
 154     /* Not yet implemented:
 155     case 'xmldump':
 156         // FIXME:
 157         $limit = 1;
 158         if ($request->getArg('include') == 'all')
 159             $limit = 0;
 160         require_once("lib/libxml.php");
 161         $xmlwriter = new WikiXmlWriter;
 162         $xmlwriter->begin();
 163         $xmlwriter->writeComment("PhpWiki " . PHPWIKI_VERSION
 164                                  . " source:\n$RCS_IDS\n");
 165         $xmlwriter->writeDatabase($dbi, $limit);
 166         $xmlwriter->end();
 167         break;
 168     */
 169
 170     case 'upload':
 171         include_once("lib/loadsave.php");
 172         LoadPostFile($dbi, $request);
 173         break;
 174
 175     case 'dumpserial':
 176         include_once("lib/loadsave.php");
 177         DumpToDir($dbi, $request);
 178         break;
 179
 180     case 'loadfile':
 181         include_once("lib/loadsave.php");
 182         LoadFileOrDir($dbi, $request);
 183         break;
 184
 185     case 'remove':
 186         include 'lib/removepage.php';
 187         break;
 188
 189     case 'lock':
 190     case 'unlock':
 191         // FIXME: This check is redundant.
 192         $user->requireAuth(WIKIAUTH_ADMIN);
 193         $page = $dbi->getPage($request->getArg('pagename'));
 194         $page->set('locked', $action == 'lock');
 195
 196         $request->compress_output();
 197         include_once("lib/display.php");
 198         displayPage($dbi, $request);
 199         break;
 200
 201     case 'setprefs':
 202         $prefs = $user->getPreferences();
 203         $edit_area_width = $request->getArg('edit_area_width');
 204         $edit_area_height = $request->getArg('edit_area_height');
 205         if ($edit_area_width)
 206             $prefs['edit_area.width'] = $edit_area_width;
 207         if ($edit_area_height)
 208             $prefs['edit_area.height'] = $edit_area_height;
 209         $user->setPreferences($prefs);
 210         $ErrorManager->setPostponedErrorMask(E_ALL & ~E_NOTICE);
 211
 212         $request->compress_output();
 213         include_once("lib/display.php");
 214         displayPage($dbi, $request);
 215         break;
 216
 217     case 'browse':
 218     case 'login':
 219     case 'logout':
 220
 221         $request->compress_output();
 222         include_once("lib/display.php");
 223         displayPage($dbi, $request);
 224         break;
 225
 226     default:
 227         echo QElement('p', sprintf(_("Bad action: '%s'"), urlencode($action)));
 228         break;
 229     }
 230     ExitWiki();
 231 }
 232
 233 $request = new Request;
 234 main($request);
 235
 236
 237 // Local Variables:
 238 // mode: php
 239 // tab-width: 8
 240 // c-basic-offset: 4
 241 // c-hanging-comment-ender-p: nil
 242 // indent-tabs-mode: nil
 243 // End:
 244 ?>