include/init.php

   1 <?php
   2
   3 /**
   4  * init.php -- initialisation file
   5  *
   6  * File should be loaded in every file in src/ or plugins that occupate an entire frame
   7  *
   8  * @copyright &copy; 2006 The SquirrelMail Project Team
   9  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  10  * @version $Id$
  11  * @package squirrelmail
  12  */
  13
  14 /**
  15  * This is a development version so in order to track programmer mistakes we
  16  * set the error reporting to E_ALL
  17  */
  18 error_reporting(E_ALL);
  19
  20
  21 /**
  22  * Make sure we have a page name
  23  *
  24  */
  25 if ( !defined('PAGE_NAME') ) define('PAGE_NAME', NULL);
  26
  27
  28 /**
  29  * If register_globals are on, unregister globals.
  30  * Second test covers boolean set as string (php_value register_globals off).
  31  */
  32 if ((bool) ini_get('register_globals') &&
  33     strtolower(ini_get('register_globals'))!='off') {
  34     /**
  35      * Remove all globals that are not reserved by PHP
  36      * 'value' and 'key' are used by foreach. Don't unset them inside foreach.
  37      */
  38     foreach ($GLOBALS as $key => $value) {
  39         switch($key) {
  40         case 'HTTP_POST_VARS':
  41         case '_POST':
  42         case 'HTTP_GET_VARS':
  43         case '_GET':
  44         case 'HTTP_COOKIE_VARS':
  45         case '_COOKIE':
  46         case 'HTTP_SERVER_VARS':
  47         case '_SERVER':
  48         case 'HTTP_ENV_VARS':
  49         case '_ENV':
  50         case 'HTTP_POST_FILES':
  51         case '_FILES':
  52         case '_REQUEST':
  53         case 'HTTP_SESSION_VARS':
  54         case '_SESSION':
  55         case 'GLOBALS':
  56         case 'key':
  57         case 'value':
  58             break;
  59         default:
  60             unset($GLOBALS[$key]);
  61         }
  62     }
  63     // Unset variables used in foreach
  64     unset($GLOBALS['key']);
  65     unset($GLOBALS['value']);
  66 }
  67
  68 /**
  69  * Used as a dummy value, e.g., for passing as an empty
  70  * hook argument (where the value is passed by reference,
  71  * and therefore NULL itself is not acceptable).
  72  */
  73 global $null;
  74 $null = NULL;
  75
  76 /**
  77  * [#1518885] session.use_cookies = off breaks SquirrelMail
  78  *
  79  * When session cookies are not used, all http redirects, meta refreshes,
  80  * src/download.php and javascript URLs are broken. Setting must be set
  81  * before session is started.
  82  */
  83 if (!(bool)ini_get('session.use_cookies') ||
  84     ini_get('session.use_cookies') == 'off') {
  85     ini_set('session.use_cookies','1');
  86 }
  87
  88 /**
  89  * calculate SM_PATH and calculate the base_uri
  90  * assumptions made: init.php is only called from plugins or from the src dir.
  91  * files in the plugin directory may not be part of a subdirectory called "src"
  92  *
  93  */
  94 if (isset($_SERVER['SCRIPT_NAME'])) {
  95     $a = explode('/',$_SERVER['SCRIPT_NAME']);
  96 } elseif (isset($HTTP_SERVER_VARS['SCRIPT_NAME'])) {
  97     $a = explode('/',$HTTP_SERVER_VARS['SCRIPT_NAME']);
  98 } else {
  99     $error = 'Unable to detect script environment. '
 100         .'Please test your PHP settings and send PHP core config, $_SERVER '
 101         .'and $HTTP_SERVER_VARS to SquirrelMail developers.';
 102     die($error);
 103 }
 104 $sSM_PATH = '';
 105 for($i = count($a) -2;$i > -1; --$i) {
 106     $sSM_PATH .= '../';
 107     if ($a[$i] === 'src' || $a[$i] === 'plugins') {
 108         break;
 109     }
 110 }
 111
 112 $base_uri = implode('/',array_slice($a,0,$i)). '/';
 113
 114 define('SM_PATH',$sSM_PATH);
 115 define('SM_BASE_URI', $base_uri);
 116 /**
 117  * global var $bInit is used to check if initialisation took place.
 118  * At this moment it's a workarounf for the include of addrbook_search_html
 119  * inside compose.php. If we found a better way then remove this. Do only use
 120  * this var if you know for sure a page can be called stand alone and be included
 121  * in another file.
 122  */
 123 $bInit = true;
 124
 125 /**
 126  * This theme as a failsafe if no themes were found, or if we error
 127  * out before anything could be initialised.
 128  */
 129 $color = array();
 130 $color[0]  = '#DCDCDC';  /* light gray    TitleBar               */
 131 $color[1]  = '#800000';  /* red                                  */
 132 $color[2]  = '#CC0000';  /* light red     Warning/Error Messages */
 133 $color[3]  = '#A0B8C8';  /* green-blue    Left Bar Background    */
 134 $color[4]  = '#FFFFFF';  /* white         Normal Background      */
 135 $color[5]  = '#FFFFCC';  /* light yellow  Table Headers          */
 136 $color[6]  = '#000000';  /* black         Text on left bar       */
 137 $color[7]  = '#0000CC';  /* blue          Links                  */
 138 $color[8]  = '#000000';  /* black         Normal text            */
 139 $color[9]  = '#ABABAB';  /* mid-gray      Darker version of #0   */
 140 $color[10] = '#666666';  /* dark gray     Darker version of #9   */
 141 $color[11] = '#770000';  /* dark red      Special Folders color  */
 142 $color[12] = '#EDEDED';
 143 $color[13] = '#800000';  /* (dark red)    Color for quoted text -- > 1 quote */
 144 $color[14] = '#ff0000';  /* (red)         Color for quoted text -- >> 2 or more */
 145 $color[15] = '#002266';  /* (dark blue)   Unselectable folders */
 146 $color[16] = '#ff9933';  /* (orange)      Highlight color */
 147
 148 require(SM_PATH . 'functions/global.php');
 149 require(SM_PATH . 'functions/strings.php');
 150 require(SM_PATH . 'functions/arrays.php');
 151
 152 /* load default configuration */
 153 require(SM_PATH . 'config/config_default.php');
 154 /* reset arrays in default configuration */
 155 $ldap_server = array();
 156 $plugins = array();
 157 $fontsets = array();
 158 $aTemplateSet = array();
 159 $aTemplateSet[0]['ID'] = 'default';
 160 $aTemplateSet[0]['NAME'] = 'Default';
 161
 162 /* load site configuration */
 163 require(SM_PATH . 'config/config.php');
 164 /* load local configuration overrides */
 165 if (file_exists(SM_PATH . 'config/config_local.php')) {
 166     require(SM_PATH . 'config/config_local.php');
 167 }
 168
 169 require(SM_PATH . 'functions/plugin.php');
 170 require(SM_PATH . 'include/constants.php');
 171 require(SM_PATH . 'include/languages.php');
 172 require(SM_PATH . 'class/template/Template.class.php');
 173 require(SM_PATH . 'class/error.class.php');
 174
 175 /**
 176  * If magic_quotes_runtime is on, SquirrelMail breaks in new and creative ways.
 177  * Force magic_quotes_runtime off.
 178  * tassium@squirrelmail.org - I put it here in the hopes that all SM code includes this.
 179  * If there's a better place, please let me know.
 180  */
 181 ini_set('magic_quotes_runtime','0');
 182
 183
 184 /* if running with magic_quotes_gpc then strip the slashes
 185    from POST and GET global arrays */
 186 if (get_magic_quotes_gpc()) {
 187     sqstripslashes($_GET);
 188     sqstripslashes($_POST);
 189 }
 190
 191
 192 /* strip any tags added to the url from PHP_SELF.
 193 This fixes hand crafted url XXS expoits for any
 194    page that uses PHP_SELF as the FORM action */
 195 $_SERVER['PHP_SELF'] = strip_tags($_SERVER['PHP_SELF']);
 196
 197 $PHP_SELF = php_self();
 198
 199 /**
 200  * Initialize the session
 201  */
 202
 203 /** set the name of the session cookie */
 204 if (!isset($session_name) || !$session_name) {
 205     $session_name = 'SQMSESSID';
 206 }
 207
 208 /**
 209  * When session.auto_start is On we want to destroy/close the session
 210  */
 211 $sSessionAutostartName = session_name();
 212 $sCookiePath = null;
 213 if (isset($sSessionAutostartName) && $sSessionAutostartName !== $session_name) {
 214     $sCookiePath = ini_get('session.cookie_path');
 215     $sCookieDomain = ini_get('session.cookie_domain');
 216     // reset the cookie
 217     setcookie($sSessionAutostartName,'',time() - 604800,$sCookiePath,$sCookieDomain);
 218     @session_destroy();
 219     session_write_close();
 220 }
 221
 222 /**
 223  * includes from classes stored in the session
 224  */
 225 require(SM_PATH . 'class/mime.class.php');
 226
 227 ini_set('session.name' , $session_name);
 228 session_set_cookie_params (0, $base_uri);
 229 sqsession_is_active();
 230
 231 /**
 232  * When on login page, have to reset the user session, making
 233  * sure to save session restore data first
 234  */
 235 if (PAGE_NAME == 'login') {
 236     if (!sqGetGlobalVar('session_expired_post', $sep, SQ_SESSION))
 237         $sep = '';
 238     if (!sqGetGlobalVar('session_expired_location', $sel, SQ_SESSION))
 239         $sel = '';
 240     sqsession_destroy();
 241     session_write_close();
 242
 243     /**
 244      * in some rare instances, the session seems to stick
 245      * around even after destroying it (!!), so if it does,
 246      * we'll manually flatten the $_SESSION data
 247      */
 248     if (!empty($_SESSION))
 249         $_SESSION = array();
 250
 251     sqsession_is_active();
 252     session_regenerate_id();
 253 }
 254
 255 /**
 256  * SquirrelMail internal version number -- DO NOT CHANGE
 257  * $sm_internal_version = array (release, major, minor)
 258  */
 259 $SQM_INTERNAL_VERSION = explode('.', SM_VERSION, 3);
 260 $SQM_INTERNAL_VERSION[2] = intval($SQM_INTERNAL_VERSION[2]);
 261
 262
 263 /* load prefs system; even when user not logged in, should be OK to do this here */
 264 require(SM_PATH . 'functions/prefs.php');
 265
 266 $prefs_backend = do_hook('prefs_backend', $null);
 267 if (isset($prefs_backend) && !empty($prefs_backend) && file_exists(SM_PATH . $prefs_backend)) {
 268     require(SM_PATH . $prefs_backend);
 269 } elseif (isset($prefs_dsn) && !empty($prefs_dsn)) {
 270     require(SM_PATH . 'functions/db_prefs.php');
 271 } else {
 272     require(SM_PATH . 'functions/file_prefs.php');
 273 }
 274
 275
 276 /* if plugins are disabled only for one user and
 277  * the current user is NOT that user, turn them
 278  * back on
 279  */
 280 sqgetGlobalVar('username',$username,SQ_SESSION);
 281 if ($disable_plugins && !empty($disable_plugins_user)
 282  && $username != $disable_plugins_user) {
 283     $disable_plugins = false;
 284 }
 285
 286 /* remove all plugins if they are disabled */
 287 if ($disable_plugins) {
 288    $plugins = array();
 289 }
 290
 291
 292 /**
 293  * Include Compatibility plugin if available.
 294  */
 295 if (!$disable_plugins && file_exists(SM_PATH . 'plugins/compatibility/functions.php'))
 296     include_once(SM_PATH . 'plugins/compatibility/functions.php');
 297
 298 /**
 299  * MAIN PLUGIN LOADING CODE HERE
 300  * On init, we no longer need to load all plugin setup files.
 301  * Now, we load the statically generated hook registrations here
 302  * and let the hook calls include only the plugins needed.
 303  */
 304 $squirrelmail_plugin_hooks = array();
 305 if (!$disable_plugins && file_exists(SM_PATH . 'config/plugin_hooks.php')) {
 306     require(SM_PATH . 'config/plugin_hooks.php');
 307 }
 308
 309 /**
 310  * allow plugins to override main configuration; hook is placed
 311  * here to allow plugins to use session information to do their work
 312  */
 313 do_hook('config_override', $null);
 314
 315 /**
 316  * DISABLED.
 317  * Remove globalized session data in rg=on setups
 318  *
 319  * Code can be utilized when session is started, but data is not loaded.
 320  * We have already loaded configuration and other important vars. Can't
 321  * clean session globals here.
 322 if ((bool) @ini_get('register_globals') &&
 323     strtolower(ini_get('register_globals'))!='off') {
 324     foreach ($_SESSION as $key => $value) {
 325         unset($GLOBALS[$key]);
 326     }
 327 }
 328 */
 329
 330 sqsession_register(SM_BASE_URI,'base_uri');
 331
 332 /**
 333  * Retrieve the language cookie
 334  */
 335 if (! sqgetGlobalVar('squirrelmail_language',$squirrelmail_language,SQ_COOKIE)) {
 336     $squirrelmail_language = '';
 337 }
 338
 339
 340 /**
 341  * Do something special for some pages. This is based on the PAGE_NAME constand
 342  * set at the top of every page.
 343  */
 344 switch (PAGE_NAME) {
 345     case 'style':
 346
 347         // need to get the right template set up
 348         //
 349         sqGetGlobalVar('templateid', $templateid, SQ_GET);
 350
 351         // sanitize just in case...
 352         //
 353         $templateid = preg_replace('/(\.\.\/){1,}/', '', $templateid);
 354
 355         // make sure given template actually is available
 356         //
 357         $found_templateset = false;
 358         for ($i = 0; $i < count($aTemplateSet); ++$i) {
 359             if ($aTemplateSet[$i]['ID'] == $templateid) {
 360                 $found_templateset = true;
 361                 break;
 362             }
 363         }
 364
 365 // FIXME: do we need/want to check here for actual (physical) presence of template sets?
 366         // selected template not available, fall back to default template
 367         //
 368         if (!$found_templateset) {
 369             $sTemplateID = Template::get_default_template_set();
 370         } else {
 371             $sTemplateID = $templateid;
 372         }
 373
 374         session_write_close();
 375         break;
 376
 377     case 'redirect':
 378         require(SM_PATH . 'functions/auth.php');
 379         //nobreak;
 380
 381     case 'login':
 382         require(SM_PATH . 'functions/display_messages.php' );
 383         require(SM_PATH . 'functions/page_header.php');
 384         require(SM_PATH . 'functions/html.php');
 385
 386         // put session restore data back into session if necessary
 387         if (!empty($sel)) {
 388             sqsession_register($sel, 'session_expired_location');
 389             if (!empty($sep))
 390                 sqsession_register($sep, 'session_expired_post');
 391         }
 392
 393         // reset template file cache
 394         //
 395         $sTemplateID = Template::get_default_template_set();
 396         Template::cache_template_file_hierarchy(TRUE);
 397
 398         /**
 399          * Make sure icon variables are setup for the login page.
 400          */
 401         $icon_theme = $icon_themes[$icon_theme_def]['PATH'];
 402         /*
 403          * NOTE: The $icon_theme_path var should contain the path to the icon
 404          *       theme to use.  If the admin has disabled icons, or the user has
 405          *       set the icon theme to "None," no icons will be used.
 406          */
 407         $icon_theme_path = (!$use_icons || $icon_theme=='none') ? NULL : ($icon_theme == 'template' ? SM_PATH . Template::calculate_template_images_directory($sTemplateID) : $icon_theme);
 408
 409         /**
 410          * cleanup old cookies with a cookie path the same as the standard php.ini
 411          * cookie path. All previous SquirrelMail version used the standard php.ini
 412          * cookie path for storing the session name. That behaviour changed.
 413          */
 414         if ($sCookiePath !== SM_BASE_URI) {
 415             /**
 416              * do not delete the standard sessions with session.name is i.e. PHPSESSID
 417              * because they probably belong to other php apps
 418              */
 419             if (ini_get('session.name') !== $sSessionAutostartName) {
 420                 //  This does not work. Sometimes the cookie with SQSESSID=deleted and path /
 421                 // is picked up in webmail.php => login will fail
 422                 //sqsetcookie(ini_get('session.name'),'',0,$sCookiePath);
 423             }
 424         }
 425         break;
 426     default:
 427         require(SM_PATH . 'functions/display_messages.php' );
 428         require(SM_PATH . 'functions/page_header.php');
 429         require(SM_PATH . 'functions/html.php');
 430
 431
 432         /**
 433          * Check if we are logged in
 434          */
 435         require(SM_PATH . 'functions/auth.php');
 436
 437         if ( !sqsession_is_registered('user_is_logged_in') ) {
 438
 439             // use $message to indicate what logout text the user
 440             // will see... if 0, typical "You must be logged in"
 441             // if 1, information that the user session was saved
 442             // and will be resumed after (re)login
 443             //
 444             $message = 0;
 445
 446             //  First we store some information in the new session to prevent
 447             //  information-loss.
 448             //
 449             $session_expired_post = $_POST;
 450             $session_expired_location = PAGE_NAME;
 451             if (!sqsession_is_registered('session_expired_post')) {
 452                 sqsession_register($session_expired_post,'session_expired_post');
 453             }
 454             if (!sqsession_is_registered('session_expired_location')) {
 455                 sqsession_register($session_expired_location,'session_expired_location');
 456                 if ($session_expired_location == 'compose')
 457                     $message = 1;
 458             }
 459             // signout page will deal with users who aren't logged
 460             // in on its own; don't show error here
 461             //
 462             if ( PAGE_NAME == 'signout' ) {
 463                 return;
 464             }
 465
 466             /**
 467              * Initialize the template object (logout_error uses it)
 468              */
 469             /*
 470              * $sTemplateID is not initialized when a user is not logged in, so we
 471              * will use the config file defaults here.  If the neccesary variables
 472              * are net set, force a default value.
 473              */
 474             $sTemplateID = Template::get_default_template_set();
 475             $oTemplate = Template::construct_template($sTemplateID);
 476
 477             set_up_language($squirrelmail_language, true);
 478             if (!$message)
 479                 logout_error( _("You must be logged in to access this page.") );
 480             else
 481                 logout_error( _("Your session has expired, but will be resumed after logging in again.") );
 482             exit;
 483         }
 484
 485 //FIXME: remove next line if the placement of the copy of this line above does not prove to be problematic
 486         sqgetGlobalVar('username',$username,SQ_SESSION);
 487         sqgetGlobalVar('authz',$authz,SQ_SESSION);
 488
 489         /**
 490          * Setting the prefs backend
 491          */
 492         sqgetGlobalVar('prefs_cache', $prefs_cache, SQ_SESSION );
 493         sqgetGlobalVar('prefs_are_cached', $prefs_are_cached, SQ_SESSION );
 494
 495         if ( !sqsession_is_registered('prefs_are_cached') ||
 496             !isset( $prefs_cache) ||
 497             !is_array( $prefs_cache)) {
 498             $prefs_are_cached = false;
 499             $prefs_cache = false; //array();
 500         }
 501
 502         /**
 503          * initializing user settings
 504          */
 505         require(SM_PATH . 'include/load_prefs.php');
 506
 507 // i do not understand the frames language cookie story
 508         /**
 509          * We'll need this to later have a noframes version
 510          *
 511          * Check if the user has a language preference, but no cookie.
 512          * Send him a cookie with his language preference, if there is
 513          * such discrepancy.
 514          */
 515          $my_language = getPref($data_dir, $username, 'language');
 516          if ($my_language != $squirrelmail_language) {
 517              sqsetcookie('squirrelmail_language', $my_language, time()+2592000, $base_uri);
 518          }
 519 // /dont understand
 520
 521         /**
 522          * Set up the language.
 523          */
 524         $err=set_up_language(getPref($data_dir, $username, 'language'));
 525
 526         // Japanese translation used without mbstring support
 527         if ($err==2) {
 528             $sError =
 529                 "<p>You need to have PHP installed with the multibyte string function \n".
 530                 "enabled (using configure option --enable-mbstring).</p>\n".
 531                 "<p>System assumed that you accidently switched to Japanese translation \n".
 532                 "and reverted your language preference to English.</p>\n".
 533                 "<p>Please refresh this page in order to use webmail.</p>\n";
 534             error_box($sError);
 535         }
 536
 537         $timeZone = getPref($data_dir, $username, 'timezone');
 538
 539         /* Check to see if we are allowed to set the TZ environment variable.
 540          * We are able to do this if ...
 541          *   safe_mode is disabled OR
 542          *   safe_mode_allowed_env_vars is empty (you are allowed to set any) OR
 543          *   safe_mode_allowed_env_vars contains TZ
 544          */
 545         $tzChangeAllowed = (!ini_get('safe_mode')) ||
 546                             !strcmp(ini_get('safe_mode_allowed_env_vars'),'') ||
 547                             preg_match('/^([\w_]+,)*TZ/', ini_get('safe_mode_allowed_env_vars'));
 548
 549         if ( $timeZone != SMPREF_NONE && ($timeZone != "")
 550             && $tzChangeAllowed ) {
 551
 552             // get time zone key, if strict or custom strict timezones are used
 553             if (isset($time_zone_type) &&
 554                 ($time_zone_type == 1 || $time_zone_type == 3)) {
 555                 /* load time zone functions */
 556                 require(SM_PATH . 'include/timezones.php');
 557                 $realTimeZone = sq_get_tz_key($timeZone);
 558             } else {
 559                 $realTimeZone = $timeZone;
 560             }
 561
 562             // set time zone
 563             if ($realTimeZone) {
 564                 putenv("TZ=".$realTimeZone);
 565             }
 566         }
 567
 568         /**
 569          * php 5.1.0 added time zone functions. Set time zone with them in order
 570          * to prevent E_STRICT notices and allow time zone modifications in safe_mode.
 571          */
 572         if (function_exists('date_default_timezone_set')) {
 573             if ($timeZone != SMPREF_NONE && $timeZone != "") {
 574                 date_default_timezone_set($timeZone);
 575             } else {
 576                 // interface runs on server's time zone. Remove php E_STRICT complains
 577                 $default_timezone = @date_default_timezone_get();
 578                 date_default_timezone_set($default_timezone);
 579             }
 580         }
 581         break;
 582 }
 583
 584 /*
 585  * $sTemplateID is not initialized when a user is not logged in, so we
 586  * will use the config file defaults here.  If the neccesary variables
 587  * are not set, force a default value.
 588  *
 589  * If the user is logged in, $sTemplateID will be set in load_prefs.php,
 590  * so we shouldn't change it here.
 591  */
 592 if (!isset($sTemplateID)) {
 593     $sTemplateID = Template::get_default_template_set();
 594     $icon_theme_path = !$use_icons ? NULL : Template::calculate_template_images_directory($sTemplateID);
 595 }
 596
 597 // template object may have already been constructed in load_prefs.php
 598 //
 599 if (empty($oTemplate)) {
 600     $oTemplate = Template::construct_template($sTemplateID);
 601 }
 602
 603 // We want some variables to always be available to the template
 604 $oTemplate->assign('javascript_on',
 605     (sqGetGlobalVar('user_is_logged_in', $user_is_logged_in, SQ_SESSION)
 606      ?  checkForJavascript() : 0));
 607 $oTemplate->assign('base_uri', sqm_baseuri());
 608 $always_include = array('sTemplateID', 'icon_theme_path');
 609 foreach ($always_include as $var) {
 610     $oTemplate->assign($var, (isset($$var) ? $$var : NULL));
 611 }
 612
 613 /**
 614  * Initialize our custom error handler object
 615  */
 616 $oErrorHandler = new ErrorHandler($oTemplate,'error_message.tpl');
 617
 618 /**
 619  * Activate custom error handling
 620  */
 621 if (version_compare(PHP_VERSION, "4.3.0", ">=")) {
 622     $oldErrorHandler = set_error_handler(array($oErrorHandler, 'SquirrelMailErrorhandler'));
 623 } else {
 624     $oldErrorHandler = set_error_handler('SquirrelMailErrorhandler');
 625 }
 626
 627 /**
 628  * Javascript support detection function
 629  * @param boolean $reset recheck javascript support if set to true.
 630  * @return integer SMPREF_JS_ON or SMPREF_JS_OFF ({@see include/constants.php})
 631  * @since 1.5.1
 632  */
 633 function checkForJavascript($reset = FALSE) {
 634   global $data_dir, $username, $javascript_on, $javascript_setting;
 635
 636   if ( !$reset && sqGetGlobalVar('javascript_on', $javascript_on, SQ_SESSION) )
 637     return $javascript_on;
 638
 639   $user_is_logged_in = FALSE;
 640   if ( $reset || !isset($javascript_setting) )
 641     $javascript_setting = getPref($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
 642
 643   if ( !sqGetGlobalVar('new_js_autodetect_results', $js_autodetect_results) &&
 644        !sqGetGlobalVar('js_autodetect_results', $js_autodetect_results) )
 645     $js_autodetect_results = SMPREF_JS_OFF;
 646
 647   if ( $javascript_setting == SMPREF_JS_AUTODETECT )
 648     $javascript_on = $js_autodetect_results;
 649   else
 650     $javascript_on = $javascript_setting;
 651
 652   sqsession_register($javascript_on, 'javascript_on');
 653   return $javascript_on;
 654 }
 655
 656 function sqm_baseuri() {
 657     global $base_uri;
 658     return $base_uri;
 659 }