lib/main.php

   1 <?php
   2 rcs_id('$Id: main.php,v 1.13 2001-04-09 19:31:49 dairiki 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 ( $action == 'browse' && $pagename == gettext("HomePage") ) {
 100    // if there is no HomePage, create a basic set of Wiki pages
 101    if ( ! IsWikiPage($dbi, gettext("HomePage")) ) {
 102       include_once("lib/loadsave.php");
 103       SetupWiki($dbi);
 104       ExitWiki();
 105    }
 106 }
 107
 108 // FIXME: I think this is redundant.
 109 if (!IsSafeAction($action))
 110    $user->must_be_admin($action);
 111 if (isset($DisabledActions) && in_array($action, $DisabledActions))
 112    ExitWiki(gettext("Action $action is disabled in this wiki."));
 113
 114 // Enable the output of most of the warning messages.
 115 // The warnings will screw up zip files and setpref though.
 116 if ($action != 'zip' && $action != 'setprefs')
 117    PostponeErrorMessages(E_NOTICE);
 118
 119 switch ($action) {
 120    case 'edit':
 121       include "lib/editpage.php";
 122       break;
 123
 124    case 'search':
 125       if (isset($searchtype) && ($searchtype == 'full')) {
 126          include "lib/fullsearch.php";
 127       }
 128       else {
 129          include "lib/search.php";
 130       }
 131       break;
 132
 133    case 'save':
 134       include "lib/savepage.php";
 135       break;
 136    case 'info':
 137       include "lib/pageinfo.php";
 138       break;
 139    case 'diff':
 140       include "lib/diff.php";
 141       break;
 142
 143    case 'zip':
 144       include_once("lib/loadsave.php");
 145       MakeWikiZip($dbi, isset($include) && $include == 'all');
 146       // I don't think it hurts to add cruft at the end of the zip file.
 147       echo "\n========================================================\n";
 148       echo "PhpWiki " . PHPWIKI_VERSION . " source:\n$RCS_IDS\n";
 149       break;
 150
 151    case 'upload':
 152       include_once("lib/loadsave.php");
 153       LoadPostFile($dbi, 'file');
 154       break;
 155
 156    case 'dumpserial':
 157       if (empty($directory))
 158          ExitWiki(gettext("You must specify a directory to dump to"));
 159
 160       include_once("lib/loadsave.php");
 161       DumpToDir($dbi, fix_magic_quotes_gpc($directory));
 162       break;
 163
 164    case 'loadfile':
 165       if (empty($source))
 166          ExitWiki(gettext("You must specify a source to read from"));
 167
 168       include_once("lib/loadsave.php");
 169       LoadFileOrDir($dbi, fix_magic_quotes_gpc($source));
 170       break;
 171
 172    case 'remove':
 173       include 'admin/removepage.php';
 174       break;
 175
 176    case 'lock':
 177    case 'unlock':
 178       include "admin/lockpage.php";
 179       include "lib/display.php";
 180       break;
 181
 182    case 'setprefs':
 183       $prefs = $user->getPreferences($GLOBALS);
 184       if (!empty($edit_area_width))
 185          $prefs['edit_area.width'] = $edit_area_width;
 186       if (!empty($edit_area_height))
 187          $prefs['edit_area.height'] = $edit_area_height;
 188       $user->setPreferences($prefs);
 189
 190       PostponeErrorMessages(E_ALL & ~E_NOTICE);
 191
 192       include "lib/display.php";
 193       break;
 194
 195    case 'browse':
 196    case 'login':
 197    case 'logout':
 198       include "lib/display.php";
 199       break;
 200
 201    default:
 202       echo QElement('p', sprintf("Bad action: '%s'", urlencode($action)));
 203       break;
 204 }
 205
 206 ExitWiki();
 207
 208 // For emacs users
 209 // Local Variables:
 210 // mode: php
 211 // c-file-style: "ellemtel"
 212 // End:
 213 ?>