lib/main.php

   1 <?php
   2 rcs_id('$Id: main.php,v 1.18 2001-11-26 22:43:24 dairiki Exp $');
   3
   4 include "lib/config.php";
   5 include "lib/stdlib.php";
   6 //include "lib/logger.php";
   7 require_once('lib/Request.php');
   8 require_once("lib/WikiUser.php");
   9 require_once('lib/WikiDB.php');
  10
  11
  12 function deduce_pagename ($request) {
  13     if ($request->getArg('pagename'))
  14         return $request->getArg('pagename');
  15
  16     if (USE_PATH_INFO) {
  17         $pathinfo = $request->get('PATH_INFO');
  18         if (ereg('^' . PATH_INFO_PREFIX . '(..*)$', $pathinfo, $m))
  19             return $m[1];
  20     }
  21
  22     $query_string = $request->get('QUERY_STRING');
  23     if (preg_match('/^[^&=]+$/', $query_string))
  24         return urldecode($query_string);
  25
  26     return gettext("HomePage");
  27 }
  28
  29 function is_safe_action ($action) {
  30     if (! ZIPDUMP_AUTH and ($action == 'zip' || $action == 'xmldump'))
  31         return true;
  32     return in_array ( $action, array('browse',
  33                                      'info', 'diff', 'search',
  34                                      'edit', 'save',
  35                                      'login', 'logout',
  36                                      'setprefs') );
  37 }
  38
  39 function get_auth_mode ($action) {
  40     switch ($action) {
  41     case 'logout':
  42         return  'LOGOUT';
  43     case 'login':
  44         return 'LOGIN';
  45     default:
  46         if (is_safe_action($action))
  47             return 'ANON_OK';
  48         else
  49             return 'REQUIRE_AUTH';
  50     }
  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
  73     global $user;               // FIXME: can we make this non-global?
  74     $user = new WikiUser($request, get_auth_mode($action));
  75     //FIXME:
  76     //if ($user->is_authenticated())
  77     //  $LogEntry->user = $user->id();
  78
  79     // All requests require the database
  80     global $dbi;                // FIXME: can we keep this non-global?
  81     $dbi = WikiDB::open($GLOBALS['DBParams']);
  82
  83     if ( $action == 'browse' && $request->getArg('pagename') == gettext("HomePage") ) {
  84         // if there is no HomePage, create a basic set of Wiki pages
  85         if ( ! $dbi->isWikiPage(gettext("HomePage")) ) {
  86             include_once("lib/loadsave.php");
  87             SetupWiki($dbi);
  88             ExitWiki();
  89         }
  90     }
  91
  92     // FIXME: I think this is redundant.
  93     if (!is_safe_action($action))
  94         $user->must_be_admin($action);
  95
  96     if (isset($DisabledActions) && in_array($action, $DisabledActions))
  97         ExitWiki(sprintf(gettext("Action %s is disabled in this wiki."), $action));
  98
  99     // Enable the output of most of the warning messages.
 100     // The warnings will screw up zip files and setpref though.
 101     global $ErrorManager;
 102     if ($action != 'zip' && $action != 'setprefs') {
 103         $ErrorManager->setPostponedErrorMask(E_NOTICE|E_USER_NOTICE);
 104     }
 105
 106
 107     switch ($action) {
 108     case 'edit':
 109         $request->compress_output();
 110         include "lib/editpage.php";
 111         editPage($dbi, $request);
 112         break;
 113
 114     case 'search':
 115         // This is obsolete: reformulate URL and redirect.
 116         // FIXME: this whole section should probably be deleted.
 117         if ($request->getArg('searchtype') == 'full') {
 118             $search_page = gettext('FullTextSearch');
 119         }
 120         else {
 121             $search_page = gettext('TitleSearch');
 122         }
 123         $request->redirect(WikiURL($search_page,
 124                                    array('s' => $request->getArg('searchterm')),
 125                                    'absolute_url'));
 126         break;
 127
 128     case 'save':
 129         $request->compress_output();
 130         include "lib/savepage.php";
 131         savePage($dbi, $request);
 132         break;
 133     case 'info':
 134         $request->compress_output();
 135         include "lib/pageinfo.php";
 136         break;
 137     case 'diff':
 138         $request->compress_output();
 139         include_once "lib/diff.php";
 140         showDiff($dbi, $request);
 141         break;
 142
 143     case 'zip':
 144         include_once("lib/loadsave.php");
 145         MakeWikiZip($dbi, $request);
 146         // I don't think it hurts to add cruft at the end of the zip file.
 147         echo "\n========================================================\n";
 148         echo "PhpWiki " . PHPWIKI_VERSION . " source:\n$GLOBALS[RCS_IDS]\n";
 149         break;
 150
 151     /* Not yet implemented:
 152     case 'xmldump':
 153         // FIXME:
 154         $limit = 1;
 155         if ($request->getArg('include') == 'all')
 156             $limit = 0;
 157         require_once("lib/libxml.php");
 158         $xmlwriter = new WikiXmlWriter;
 159         $xmlwriter->begin();
 160         $xmlwriter->writeComment("PhpWiki " . PHPWIKI_VERSION . " source:\n$RCS_IDS\n");
 161         $xmlwriter->writeDatabase($dbi, $limit);
 162         $xmlwriter->end();
 163         break;
 164     */
 165
 166     case 'upload':
 167         include_once("lib/loadsave.php");
 168         LoadPostFile($dbi, $request);
 169         break;
 170
 171     case 'dumpserial':
 172         include_once("lib/loadsave.php");
 173         DumpToDir($dbi, $request);
 174         break;
 175
 176     case 'loadfile':
 177         include_once("lib/loadsave.php");
 178         LoadFileOrDir($dbi, $request);
 179         break;
 180
 181     case 'remove':
 182         include 'lib/removepage.php';
 183         break;
 184
 185     case 'lock':
 186     case 'unlock':
 187         $user->must_be_admin("lock or unlock pages");
 188         $page = $dbi->getPage($request->getArg('pagename'));
 189         $page->set('locked', $action == 'lock');
 190
 191         $request->compress_output();
 192         include_once("lib/display.php");
 193         displayPage($dbi, $request);
 194         break;
 195
 196     case 'setprefs':
 197         $prefs = $user->getPreferences();
 198         $edit_area_width = $request->getArg('edit_area_width');
 199         $edit_area_height = $request->getArg('edit_area_height');
 200         if ($edit_area_width)
 201             $prefs['edit_area.width'] = $edit_area_width;
 202         if ($edit_area_height)
 203             $prefs['edit_area.height'] = $edit_area_height;
 204         $user->setPreferences($prefs);
 205         $ErrorManager->setPostponedErrorMask(E_ALL & ~E_NOTICE);
 206
 207         $request->compress_output();
 208         include_once("lib/display.php");
 209         displayPage($dbi, $request);
 210         break;
 211
 212     case 'browse':
 213     case 'login':
 214     case 'logout':
 215         $request->compress_output();
 216         include_once("lib/display.php");
 217         displayPage($dbi, $request);
 218         break;
 219
 220     default:
 221         echo QElement('p', sprintf("Bad action: '%s'", urlencode($action)));
 222         break;
 223     }
 224     ExitWiki();
 225 }
 226
 227 $request = new Request;
 228 main($request);
 229
 230
 231 // Local Variables:
 232 // mode: php
 233 // tab-width: 8
 234 // c-basic-offset: 4
 235 // c-hanging-comment-ender-p: nil
 236 // indent-tabs-mode: nil
 237 // End:
 238 ?>