lib/main.php

   1 <?php
   2 rcs_id('$Id: main.php,v 1.11 2001-04-06 18:21:37 wainstead Exp $');
   3 include "lib/config.php";
   4 include "lib/stdlib.php";
   5 include "lib/userauth.php";
   6 include "lib/logger.php";
   7
   8 if (ACCESS_LOG)
   9 {
  10    $LogEntry = new AccessLogEntry;
  11
  12    function _write_log () { $GLOBALS['LogEntry']->write(ACCESS_LOG); }
  13    register_shutdown_function('_write_log');
  14 }
  15
  16 if (USE_PATH_INFO && !isset($PATH_INFO)
  17     && (!isset($REDIRECT_URL) || !preg_match(',/$,', $REDIRECT_URL)))
  18 {
  19    $LogEntry->status = 302;     // "302 Found"
  20    header("Location: " . SERVER_URL . preg_replace('/(\?|$)/', '/\1', $REQUEST_URI, 1));
  21    exit;
  22 }
  23
  24 function DeducePagename ()
  25 {
  26    global $pagename, $PATH_INFO, $QUERY_STRING;
  27
  28    if (isset($pagename))
  29       return fix_magic_quotes_gpc($pagename);
  30
  31    if (USE_PATH_INFO && isset($PATH_INFO))
  32    {
  33       fix_magic_quotes_gpc($PATH_INFO);
  34       if (ereg('^' . PATH_INFO_PREFIX . '(..*)$', $PATH_INFO, $m))
  35          return $m[1];
  36    }
  37
  38    if (isset($QUERY_STRING) && preg_match('/^[^&=]+$/', $QUERY_STRING))
  39       return urldecode(fix_magic_quotes_gpc($QUERY_STRING));
  40
  41    return gettext("HomePage");
  42 }
  43
  44 $pagename = DeducePagename();
  45
  46 if (!empty($action))
  47 {
  48    $action = trim(fix_magic_quotes_gpc($action));
  49 }
  50 else if (isset($diff))
  51 {
  52    // Fix for compatibility with very old diff links in RecentChanges.
  53    // (The [phpwiki:?diff=PageName] style links are fixed elsewhere.)
  54    $action = 'diff';
  55    $pagename = fix_magic_quotes_gpc($diff);
  56    unset($diff);
  57 }
  58 else
  59 {
  60    $action = 'browse';
  61 }
  62
  63 function IsSafeAction ($action)
  64 {
  65    if (! ZIPDUMP_AUTH and $action == 'zip')
  66       return true;
  67    return in_array ( $action, array('browse',
  68                                     'info', 'diff', 'search',
  69                                     'edit', 'save',
  70                                     'login', 'logout',
  71                                     'setprefs') );
  72 }
  73
  74 function get_auth_mode ($action)
  75 {
  76    switch ($action) {
  77       case 'logout':
  78          return  'LOGOUT';
  79       case 'login':
  80          return 'LOGIN';
  81       default:
  82          if (IsSafeAction($action))
  83             return 'ANON_OK';
  84          else
  85             return 'REQUIRE_AUTH';
  86    }
  87 }
  88
  89
  90 $user = new WikiUser(get_auth_mode($action));
  91 if ($user->is_authenticated())
  92    $LogEntry->user = $user->id();
  93
  94
  95
  96 // All requests require the database
  97 $dbi = OpenDataBase($WikiPageStore);
  98
  99 // if there is no HomePage, create a basic set of Wiki pages
 100 if ( ! IsWikiPage($dbi, gettext("HomePage")) )
 101 {
 102    include_once("lib/loadsave.php");
 103    SetupWiki($dbi);
 104    ExitWiki();
 105 }
 106
 107 // FIXME: I think this is redundant.
 108 if (!IsSafeAction($action))
 109    $user->must_be_admin($action);
 110 if (isset($DisabledActions) && in_array($action, $DisabledActions))
 111    ExitWiki(gettext("Action $action is disabled in this wiki."));
 112
 113 // Enable the output of most of the warning messages.
 114 // The warnings will screw up zip files and setpref though.
 115 if ($action != 'zip' && $action != 'setprefs')
 116    PostponeErrorMessages(E_NOTICE);
 117
 118 switch ($action) {
 119    case 'edit':
 120       include "lib/editpage.php";
 121       break;
 122
 123    case 'search':
 124       if (isset($searchtype) && ($searchtype == 'full')) {
 125          include "lib/fullsearch.php";
 126       }
 127       else {
 128          include "lib/search.php";
 129       }
 130       break;
 131
 132    case 'save':
 133       include "lib/savepage.php";
 134       break;
 135    case 'info':
 136       include "lib/pageinfo.php";
 137       break;
 138    case 'diff':
 139       include "lib/diff.php";
 140       break;
 141
 142    case 'zip':
 143       include_once("lib/loadsave.php");
 144       MakeWikiZip($dbi, isset($include) && $include == 'all');
 145       // I don't think it hurts to add cruft at the end of the zip file.
 146       echo "\n========================================================\n";
 147       echo "PhpWiki " . PHPWIKI_VERSION . " source:\n$RCS_IDS\n";
 148       break;
 149
 150    case 'upload':
 151       include_once("lib/loadsave.php");
 152       LoadPostFile($dbi, 'file');
 153       break;
 154
 155    case 'dumpserial':
 156       if (empty($directory))
 157          ExitWiki(gettext("You must specify a directory to dump to"));
 158
 159       include_once("lib/loadsave.php");
 160       DumpToDir($dbi, fix_magic_quotes_gpc($directory));
 161       break;
 162
 163    case 'loadfile':
 164       if (empty($source))
 165          ExitWiki(gettext("You must specify a source to read from"));
 166
 167       include_once("lib/loadsave.php");
 168       LoadFileOrDir($dbi, fix_magic_quotes_gpc($source));
 169       break;
 170
 171    case 'remove':
 172       include 'admin/removepage.php';
 173       break;
 174
 175    case 'lock':
 176    case 'unlock':
 177       include "admin/lockpage.php";
 178       include "lib/display.php";
 179       break;
 180
 181    case 'setprefs':
 182       $prefs = $user->getPreferences($GLOBALS);
 183       if (!empty($edit_area_width))
 184          $prefs['edit_area.width'] = $edit_area_width;
 185       if (!empty($edit_area_height))
 186          $prefs['edit_area.height'] = $edit_area_height;
 187       $user->setPreferences($prefs);
 188
 189       PostponeErrorMessages(E_ALL & ~E_NOTICE);
 190
 191       include "lib/display.php";
 192       break;
 193
 194    case 'browse':
 195    case 'login':
 196    case 'logout':
 197       include "lib/display.php";
 198       break;
 199
 200    default:
 201       echo QElement('p', sprintf("Bad action: '%s'", urlencode($action)));
 202       break;
 203 }
 204
 205 ExitWiki();
 206
 207 // For emacs users
 208 // Local Variables:
 209 // mode: php
 210 // c-file-style: "ellemtel"
 211 // End:
 212 ?>