4 * init.php -- initialisation file
6 * File should be loaded in every file in src/ or plugins that occupate an entire frame
8 * @copyright 2006-2012 The SquirrelMail Project Team
9 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
11 * @package squirrelmail
15 * This is a development version so in order to track programmer mistakes we
16 * set the error reporting to E_ALL
17 FIXME: disabling this for now, because we now have $sm_debug_mode, but the problem with that is that we don't know what it will be until we have loaded the config file, a good 175 lines below after several important files have been included, etc. For now, we'll trust that developers have turned on E_ALL in php.ini anyway, but this can be uncommented if not.
19 //error_reporting(E_ALL);
23 * Make sure we have a page name
26 if ( !defined('PAGE_NAME') ) define('PAGE_NAME', NULL);
30 * If register_globals are on, unregister globals.
31 * Second test covers boolean set as string (php_value register_globals off).
33 if ((bool) ini_get('register_globals') &&
34 strtolower(ini_get('register_globals'))!='off') {
36 * Remove all globals that are not reserved by PHP
37 * 'value' and 'key' are used by foreach. Don't unset them inside foreach.
39 foreach ($GLOBALS as $key => $value) {
41 case 'HTTP_POST_VARS':
45 case 'HTTP_COOKIE_VARS':
47 case 'HTTP_SERVER_VARS':
51 case 'HTTP_POST_FILES':
54 case 'HTTP_SESSION_VARS':
61 unset($GLOBALS[$key]);
64 // Unset variables used in foreach
65 unset($GLOBALS['key']);
66 unset($GLOBALS['value']);
70 * Used as a dummy value, e.g., for passing as an empty
71 * hook argument (where the value is passed by reference,
72 * and therefore NULL itself is not acceptable).
78 * The global $server_os variable will be "windows" if
79 * we are working in a Windows environment or "*nix"
83 if (DIRECTORY_SEPARATOR
== '\\') $server_os = 'windows'; else $server_os = '*nix';
86 * [#1518885] session.use_cookies = off breaks SquirrelMail
88 * When session cookies are not used, all http redirects, meta refreshes,
89 * src/download.php and javascript URLs are broken. Setting must be set
90 * before session is started.
92 if (!(bool)ini_get('session.use_cookies') ||
93 ini_get('session.use_cookies') == 'off') {
94 ini_set('session.use_cookies','1');
98 * Initialize seed of random number generator.
99 * We use a number of things to randomize input: current time in ms,
100 * info about the remote client, info about the current process, the
101 * randomness of uniqid and stat of the current file.
103 * We seed this here only once per init, not only to save cycles
104 * but also to make the result of mt_rand more random (it now also
105 * depends on the number of times mt_rand was called before in this
108 $seed = microtime() . $_SERVER['REMOTE_PORT'] . $_SERVER['REMOTE_ADDR'] . getmypid();
110 if (function_exists('getrusage')) {
111 /* Avoid warnings with Win32 */
113 if (isset($dat) && is_array($dat)) { $seed .= implode('', $dat); }
116 if(!empty($_SERVER['UNIQUE_ID'])) {
117 $seed .= $_SERVER['UNIQUE_ID'];
120 $seed .= uniqid(mt_rand(),TRUE);
121 $seed .= implode('', stat( __FILE__
));
123 // mt_srand() uses an integer to seed, so we need to distill our
124 // very large seed to something useful (without taking a sub-string,
125 // the integer conversion of such a large number is always 0 on
126 // many systems, but strangely, 9 hex numbers - even if larger
127 // than a signed 32 bit integer - seem to be an acceptable "integer"
128 // seed (perhaps it is used as unsigned?)...
129 // we may want to revisit this and always force it to be less than
132 $seed = hexdec(substr(md5($seed), 0, 9));
134 // PHP 4.2 and up don't require seeding, but their used seed algorithm
135 // is of questionable quality, so we keep doing it ourselves. */
139 * calculate SM_PATH and calculate the base_uri
140 * assumptions made: init.php is only called from plugins or from the src dir.
141 * files in the plugin directory may not be part of a subdirectory called "src"
144 if (isset($_SERVER['SCRIPT_NAME'])) {
145 $a = explode('/', $_SERVER['SCRIPT_NAME']);
146 } elseif (isset($HTTP_SERVER_VARS['SCRIPT_NAME'])) {
147 $a = explode('/', $HTTP_SERVER_VARS['SCRIPT_NAME']);
149 $error = 'Unable to detect script environment. Please test your PHP '
150 . 'settings and send your PHP core configuration, $_SERVER and '
151 . '$HTTP_SERVER_VARS contents to the SquirrelMail developers.';
155 for($i = count($a) -2; $i > -1; --$i) {
157 if ($a[$i] === 'src' ||
$a[$i] === 'plugins') {
162 $base_uri = implode('/', array_slice($a, 0, $i)). '/';
164 define('SM_PATH',$sSM_PATH);
165 define('SM_BASE_URI', $base_uri);
169 * global var $bInit is used to check if initialisation took place.
170 * At this moment it's a workarounf for the include of addrbook_search_html
171 * inside compose.php. If we found a better way then remove this. Do only use
172 * this var if you know for sure a page can be called stand alone and be included
178 * This theme as a failsafe if no themes were found, or if we error
179 * out before anything could be initialised.
182 $color[0] = '#DCDCDC'; /* light gray TitleBar */
183 $color[1] = '#800000'; /* red */
184 $color[2] = '#CC0000'; /* light red Warning/Error Messages */
185 $color[3] = '#A0B8C8'; /* green-blue Left Bar Background */
186 $color[4] = '#FFFFFF'; /* white Normal Background */
187 $color[5] = '#FFFFCC'; /* light yellow Table Headers */
188 $color[6] = '#000000'; /* black Text on left bar */
189 $color[7] = '#0000CC'; /* blue Links */
190 $color[8] = '#000000'; /* black Normal text */
191 $color[9] = '#ABABAB'; /* mid-gray Darker version of #0 */
192 $color[10] = '#666666'; /* dark gray Darker version of #9 */
193 $color[11] = '#770000'; /* dark red Special Folders color */
194 $color[12] = '#EDEDED';
195 $color[13] = '#800000'; /* (dark red) Color for quoted text -- > 1 quote */
196 $color[14] = '#ff0000'; /* (red) Color for quoted text -- >> 2 or more */
197 $color[15] = '#002266'; /* (dark blue) Unselectable folders */
198 $color[16] = '#ff9933'; /* (orange) Highlight color */
200 require(SM_PATH
. 'include/constants.php');
201 require(SM_PATH
. 'functions/global.php');
202 require(SM_PATH
. 'functions/strings.php');
203 require(SM_PATH
. 'functions/arrays.php');
204 require(SM_PATH
. 'functions/files.php');
206 /* load default configuration */
207 require(SM_PATH
. 'config/config_default.php');
208 /* reset arrays in default configuration */
209 $ldap_server = array();
212 $aTemplateSet = array();
213 $aTemplateSet[0]['ID'] = 'default';
214 $aTemplateSet[0]['NAME'] = 'Default';
216 /* load site configuration */
217 require(SM_PATH
. 'config/config.php');
218 /* load local configuration overrides */
219 if (file_exists(SM_PATH
. 'config/config_local.php')) {
220 require(SM_PATH
. 'config/config_local.php');
225 * Set PHP error reporting level based on the SquirrelMail debug mode
228 if ($sm_debug_mode & SM_DEBUG_MODE_SIMPLE
)
229 $error_level |
= E_ERROR
;
230 if ($sm_debug_mode & SM_DEBUG_MODE_MODERATE
231 ||
$sm_debug_mode & SM_DEBUG_MODE_ADVANCED
)
232 $error_level |
= E_ALL
;
233 if ($sm_debug_mode & SM_DEBUG_MODE_STRICT
)
234 $error_level |
= E_STRICT
;
235 error_reporting($error_level);
239 * Detect SSL connections
241 $is_secure_connection = is_ssl_secured_connection();
244 require(SM_PATH
. 'functions/plugin.php');
245 require(SM_PATH
. 'include/languages.php');
246 require(SM_PATH
. 'class/template/Template.class.php');
247 require(SM_PATH
. 'class/error.class.php');
250 * If magic_quotes_runtime is on, SquirrelMail breaks in new and creative ways.
251 * Force magic_quotes_runtime off.
252 * tassium@squirrelmail.org - I put it here in the hopes that all SM code includes this.
253 * If there's a better place, please let me know.
255 ini_set('magic_quotes_runtime','0');
258 /* if running with magic_quotes_gpc then strip the slashes
259 from POST and GET global arrays */
260 if (function_exists('get_magic_quotes_gpc') && @get_magic_quotes_gpc
()) {
261 sqstripslashes($_GET);
262 sqstripslashes($_POST);
267 * Strip any tags added to the url from PHP_SELF.
268 * This fixes hand crafted url XXS expoits for any
269 * page that uses PHP_SELF as the FORM action
270 * Update: strip_tags() won't catch something like
271 * src/right_main.php?sort=0&startMessage=1&mailbox=INBOX&xxx="><script>window.open("http://example.com")</script>
273 * contrib/decrypt_headers.php/%22%20onmouseover=%22alert(%27hello%20world%27)%22%3E
274 * because it doesn't bother with broken tags.
275 * htmlspecialchars() is the preferred method.
276 * QUERY_STRING also needs the same treatment since it is
277 * used in php_self().
278 * Update again: the encoding of ampersands that occurs
279 * using htmlspecialchars() corrupts the query strings
280 * in normal URIs, so we have to let those through.
281 FIXME: will the de-sanitizing of ampersands create any security/XSS problems?
283 if (isset($_SERVER['REQUEST_URI']))
284 $_SERVER['REQUEST_URI'] = str_replace('&', '&', htmlspecialchars($_SERVER['REQUEST_URI']));
285 if (isset($_SERVER['PHP_SELF']))
286 $_SERVER['PHP_SELF'] = str_replace('&', '&', htmlspecialchars($_SERVER['PHP_SELF']));
287 if (isset($_SERVER['QUERY_STRING']))
288 $_SERVER['QUERY_STRING'] = str_replace('&', '&', htmlspecialchars($_SERVER['QUERY_STRING']));
290 $PHP_SELF = php_self();
293 * Initialize the session
296 /** set the name of the session cookie */
297 if (!isset($session_name) ||
!$session_name) {
298 $session_name = 'SQMSESSID';
302 * When session.auto_start is On we want to destroy/close the session
304 $sSessionAutostartName = session_name();
305 $sSessionAutostartID = session_id();
306 if (!empty($sSessionAutostartID) && $sSessionAutostartName !== $session_name) {
307 $sCookiePath = ini_get('session.cookie_path');
308 $sCookieDomain = ini_get('session.cookie_domain');
310 sqsetcookie($sSessionAutostartName,'',1,$sCookiePath,$sCookieDomain);
312 session_write_close();
316 * includes from classes stored in the session
318 require(SM_PATH
. 'class/mime.class.php');
320 ini_set('session.name' , $session_name);
321 session_set_cookie_params (0, $base_uri);
322 sqsession_is_active();
325 * When on login page, have to reset the user session, making
326 * sure to save session restore data first
328 if (PAGE_NAME
== 'login') {
329 if (!sqGetGlobalVar('session_expired_post', $sep, SQ_SESSION
))
331 if (!sqGetGlobalVar('session_expired_location', $sel, SQ_SESSION
))
334 session_write_close();
337 * in some rare instances, the session seems to stick
338 * around even after destroying it (!!), so if it does,
339 * we'll manually flatten the $_SESSION data
341 if (!empty($_SESSION))
345 * Allow administrators to define custom session handlers
346 * for SquirrelMail without needing to change anything in
347 * php.ini (application-level).
349 * In config_local.php, admin needs to put:
351 * $custom_session_handlers = array(
353 * 'my_close_handler',
355 * 'my_write_handler',
356 * 'my_destroy_handler',
359 * session_module_name('user');
360 * session_set_save_handler(
361 * $custom_session_handlers[0],
362 * $custom_session_handlers[1],
363 * $custom_session_handlers[2],
364 * $custom_session_handlers[3],
365 * $custom_session_handlers[4],
366 * $custom_session_handlers[5]
369 * We need to replicate that code once here because PHP has
370 * long had a bug that resets the session handler mechanism
371 * when the session data is also destroyed. Because of this
372 * bug, even administrators who define custom session handlers
373 * via a PHP pre-load defined in php.ini (auto_prepend_file)
374 * will still need to define the $custom_session_handlers array
375 * in config_local.php.
377 global $custom_session_handlers;
378 if (!empty($custom_session_handlers)) {
379 $open = $custom_session_handlers[0];
380 $close = $custom_session_handlers[1];
381 $read = $custom_session_handlers[2];
382 $write = $custom_session_handlers[3];
383 $destroy = $custom_session_handlers[4];
384 $gc = $custom_session_handlers[5];
385 session_module_name('user');
386 session_set_save_handler($open, $close, $read, $write, $destroy, $gc);
389 sqsession_is_active();
390 session_regenerate_id();
392 // put session restore data back into session if necessary
394 sqsession_register($sel, 'session_expired_location');
396 sqsession_register($sep, 'session_expired_post');
401 * SquirrelMail internal version number -- DO NOT CHANGE
402 * $sm_internal_version = array (release, major, minor)
404 $SQM_INTERNAL_VERSION = explode('.', SM_VERSION
, 3);
405 $SQM_INTERNAL_VERSION[2] = intval($SQM_INTERNAL_VERSION[2]);
408 /* load prefs system; even when user not logged in, should be OK to do this here */
409 require(SM_PATH
. 'functions/prefs.php');
412 /* if plugins are disabled only for one user and
413 * the current user is NOT that user, turn them
416 sqgetGlobalVar('username', $username, SQ_SESSION
);
417 if ($disable_plugins && !empty($disable_plugins_user)
418 && $username != $disable_plugins_user) {
419 $disable_plugins = false;
423 /* remove all plugins if they are disabled */
424 if ($disable_plugins) {
430 * Include Compatibility plugin if available.
432 if (!$disable_plugins && file_exists(SM_PATH
. 'plugins/compatibility/functions.php'))
433 include_once(SM_PATH
. 'plugins/compatibility/functions.php');
437 * MAIN PLUGIN LOADING CODE HERE
438 * On init, we no longer need to load all plugin setup files.
439 * Now, we load the statically generated hook registrations here
440 * and let the hook calls include only the plugins needed.
442 $squirrelmail_plugin_hooks = array();
443 if (!$disable_plugins && file_exists(SM_PATH
. 'config/plugin_hooks.php')) {
444 //FIXME: if we keep the plugin hooks array static like this, it seems like we should also keep the template files list in a static file too (when a new user session is started or the template set is changed, the code will dynamically iterate through the directory heirarchy of the template directory and catalog all the template files therein (and store the "catalog" in PHP session) -- instead, we could do that once at config-time and keep that static so SM can just include the file just like the line below)
445 require(SM_PATH
. 'config/plugin_hooks.php');
450 * Plugin authors note that the "config_override" hook used to be
451 * executed here, but please adapt your plugin to use this "prefs_backend"
452 * hook instead, making sure that it does NOT return anything, since
453 * doing so will interfere with proper prefs system functionality.
454 * Of course, otherwise, this hook may be used to do any configuration
455 * overrides as needed, as well as set up a custom preferences backend.
457 $prefs_backend = do_hook('prefs_backend', $null);
458 if (isset($prefs_backend) && !empty($prefs_backend) && file_exists(SM_PATH
. $prefs_backend)) {
459 require(SM_PATH
. $prefs_backend);
460 } elseif (isset($prefs_dsn) && !empty($prefs_dsn)) {
461 require(SM_PATH
. 'functions/db_prefs.php');
463 require(SM_PATH
. 'functions/file_prefs.php');
470 * Remove globalized session data in rg=on setups
472 * Code can be utilized when session is started, but data is not loaded.
473 * We have already loaded configuration and other important vars. Can't
474 * clean session globals here, beside, the cleanout of globals at the
475 * top of this file will have removed anything this code would find anyway.
476 if ((bool) @ini_get('register_globals') &&
477 strtolower(ini_get('register_globals'))!='off') {
478 foreach ($_SESSION as $key => $value) {
479 unset($GLOBALS[$key]);
484 sqsession_register(SM_BASE_URI
,'base_uri');
487 * Retrieve the language cookie
489 if (! sqgetGlobalVar('squirrelmail_language',$squirrelmail_language,SQ_COOKIE
)) {
490 $squirrelmail_language = '';
495 * In some cases, buffering all output allows more complex functionality,
496 * especially for plugins that want to add headers on hooks that are beyond
497 * the point of output having been sent to the browser otherwise.
499 * Note that we don't turn this on any earlier since we want to allow plugins
500 * to turn it on themselves via a configuration override on the prefs_backend
504 if ($buffer_output) ob_start(!empty($buffered_output_handler) ?
$buffered_output_handler : NULL);
508 * Do something special for some pages. This is based on the PAGE_NAME constant
509 * set at the top of every page.
511 $set_up_langage_after_template_setup = FALSE;
515 // need to get the right template set up
517 sqGetGlobalVar('templateid', $templateid, SQ_GET
);
519 // sanitize just in case...
521 $templateid = preg_replace('/(\.\.\/){1,}/', '', $templateid);
523 // make sure given template actually is available
525 $found_templateset = false;
526 for ($i = 0; $i < count($aTemplateSet); ++
$i) {
527 if ($aTemplateSet[$i]['ID'] == $templateid) {
528 $found_templateset = true;
533 // FIXME: do we need/want to check here for actual (physical) presence of template sets?
534 // selected template not available, fall back to default template
536 if (!$found_templateset) {
537 $sTemplateID = Template
::get_default_template_set();
539 $sTemplateID = $templateid;
542 session_write_close();
550 require(SM_PATH
. 'functions/auth.php');
554 require(SM_PATH
. 'functions/display_messages.php' );
555 require(SM_PATH
. 'functions/page_header.php');
556 require(SM_PATH
. 'functions/html.php');
558 // reset template file cache
560 $sTemplateID = Template
::get_default_template_set();
561 Template
::cache_template_file_hierarchy($sTemplateID, TRUE);
564 * Make sure icon variables are setup for the login page.
566 $icon_theme = $icon_themes[$icon_theme_def]['PATH'];
568 * NOTE: The $icon_theme_path var should contain the path to the icon
569 * theme to use. If the admin has disabled icons, or the user has
570 * set the icon theme to "None," no icons will be used.
572 $icon_theme_path = (!$use_icons ||
$icon_theme=='none') ?
NULL : ($icon_theme == 'template' ? SM_PATH
. Template
::calculate_template_images_directory($sTemplateID) : $icon_theme);
576 require(SM_PATH
. 'functions/display_messages.php' );
577 require(SM_PATH
. 'functions/page_header.php');
578 require(SM_PATH
. 'functions/html.php');
582 * Check if we are logged in and does optional referrer check
584 require(SM_PATH
. 'functions/auth.php');
586 global $check_referrer, $domain;
587 if (!sqgetGlobalVar('HTTP_REFERER', $referrer, SQ_SERVER
)) $referrer = '';
588 if ($check_referrer == '###DOMAIN###') $check_referrer = $domain;
589 if (!empty($check_referrer)) {
590 $ssl_check_referrer = 'https://' . $check_referrer;
591 $check_referrer = 'http://' . $check_referrer;
593 if (!sqsession_is_registered('user_is_logged_in')
594 ||
($check_referrer && !empty($referrer)
595 && strpos(strtolower($referrer), strtolower($check_referrer)) !== 0
596 && strpos(strtolower($referrer), strtolower($ssl_check_referrer)) !== 0)) {
598 // use $message to indicate what logout text the user
599 // will see... if 0, typical "You must be logged in"
600 // if 1, information that the user session was saved
601 // and will be resumed after (re)login, if 2, there
602 // seems to have been a XSS or phishing attack (bad
607 // First we store some information in the new session to prevent
610 $session_expired_post = $_POST;
611 $session_expired_location = PAGE_NAME
;
612 if (!sqsession_is_registered('session_expired_post')) {
613 sqsession_register($session_expired_post,'session_expired_post');
615 if (!sqsession_is_registered('session_expired_location')) {
616 sqsession_register($session_expired_location,'session_expired_location');
617 if ($session_expired_location == 'compose')
621 // was bad referrer the reason we were rejected?
623 if (sqsession_is_registered('user_is_logged_in')
624 && $check_referrer && !empty($referrer))
627 // signout page will deal with users who aren't logged
628 // in on its own; don't show error here
630 if ( PAGE_NAME
== 'signout' ) {
635 * Initialize the template object (logout_error uses it)
638 * $sTemplateID is not initialized when a user is not logged in, so we
639 * will use the config file defaults here. If the neccesary variables
640 * are not set, force a default value.
642 if (PAGE_NAME
== 'squirrelmail_rpc') {
643 $sTemplateID = Template
::get_rpc_template_set();
645 $sTemplateID = Template
::get_default_template_set();
647 $oTemplate = Template
::construct_template($sTemplateID);
649 set_up_language($squirrelmail_language, true);
651 logout_error( _("You must be logged in to access this page.") );
652 else if ($message == 1)
653 logout_error( _("Your session has expired, but will be resumed after logging in again.") );
654 else if ($message == 2)
655 logout_error( _("The current page request appears to have originated from an unrecognized source.") );
659 sqgetGlobalVar('authz',$authz,SQ_SESSION
);
662 * Setting the prefs backend
664 sqgetGlobalVar('prefs_cache', $prefs_cache, SQ_SESSION
);
665 sqgetGlobalVar('prefs_are_cached', $prefs_are_cached, SQ_SESSION
);
667 if ( !sqsession_is_registered('prefs_are_cached') ||
668 !isset( $prefs_cache) ||
669 !is_array( $prefs_cache)) {
670 $prefs_are_cached = false;
671 $prefs_cache = false; //array();
675 * initializing user settings
677 require(SM_PATH
. 'include/load_prefs.php');
680 * We'll need this to later have a noframes version
682 * Check if the user has a language preference, but no cookie.
683 * Send him a cookie with his language preference, if there is
686 $my_language = getPref($data_dir, $username, 'language');
687 if ($my_language != $squirrelmail_language) {
688 sqsetcookie('squirrelmail_language', $my_language, time()+
2592000, $base_uri);
691 $set_up_langage_after_template_setup = TRUE;
693 $timeZone = getPref($data_dir, $username, 'timezone');
695 /* Check to see if we are allowed to set the TZ environment variable.
696 * We are able to do this if ...
697 * safe_mode is disabled OR
698 * safe_mode_allowed_env_vars is empty (you are allowed to set any) OR
699 * safe_mode_allowed_env_vars contains TZ
701 $tzChangeAllowed = (!ini_get('safe_mode')) ||
702 !strcmp(ini_get('safe_mode_allowed_env_vars'),'') ||
703 preg_match('/^([\w_]+,)*TZ/', ini_get('safe_mode_allowed_env_vars'));
705 if ( $timeZone != SMPREF_NONE
&& ($timeZone != "")
706 && $tzChangeAllowed ) {
708 // get time zone key, if strict or custom strict timezones are used
709 if (isset($time_zone_type) &&
710 ($time_zone_type == 1 ||
$time_zone_type == 3)) {
711 /* load time zone functions */
712 require(SM_PATH
. 'include/timezones.php');
713 $realTimeZone = sq_get_tz_key($timeZone);
715 $realTimeZone = $timeZone;
720 putenv("TZ=".$realTimeZone);
725 * php 5.1.0 added time zone functions. Set time zone with them in order
726 * to prevent E_STRICT notices and allow time zone modifications in safe_mode.
728 if (function_exists('date_default_timezone_set')) {
729 if ($timeZone != SMPREF_NONE
&& $timeZone != "") {
730 date_default_timezone_set($timeZone);
732 // interface runs on server's time zone. Remove php E_STRICT complains
733 $default_timezone = @date_default_timezone_get
();
734 date_default_timezone_set($default_timezone);
741 * $sTemplateID is not initialized when a user is not logged in, so we
742 * will use the config file defaults here. If the neccesary variables
743 * are not set, force a default value.
745 * If the user is logged in, $sTemplateID will be set in load_prefs.php,
746 * so we shouldn't change it here.
748 if (!isset($sTemplateID)) {
749 if (PAGE_NAME
== 'squirrelmail_rpc') {
750 $sTemplateID = Template
::get_rpc_template_set();
752 $sTemplateID = Template
::get_default_template_set();
754 $icon_theme_path = !$use_icons ?
NULL : Template
::calculate_template_images_directory($sTemplateID);
757 // template object may have already been constructed in load_prefs.php
759 if (empty($oTemplate)) {
760 $oTemplate = Template
::construct_template($sTemplateID);
763 // We want some variables to always be available to the template
765 $oTemplate->assign('javascript_on',
766 (sqGetGlobalVar('user_is_logged_in', $user_is_logged_in, SQ_SESSION
)
767 ?
checkForJavascript() : 0));
768 $oTemplate->assign('base_uri', sqm_baseuri());
769 $always_include = array('sTemplateID', 'icon_theme_path');
770 foreach ($always_include as $var) {
771 $oTemplate->assign($var, (isset($
$var) ? $
$var : NULL));
774 // A few output elements are used often, so just get them once here
776 $nbsp = $oTemplate->fetch('non_breaking_space.tpl');
777 $br = $oTemplate->fetch('line_break.tpl');
781 * Set up the language.
783 * This code block corresponds to the *default* block of the switch
784 * statement above, but the language cannot be set up until after the
785 * template is instantiated, so we set $set_up_langage_after_template_setup
786 * above and do the linguistic stuff now.
788 if ($set_up_langage_after_template_setup) {
789 $err=set_up_language(getPref($data_dir, $username, 'language'));
791 // Japanese translation used without mbstring support
793 $sError = "<p>Your administrator needs to have PHP installed with the multibyte string extension enabled (using configure option --enable-mbstring).</p>\n"
794 . "<p>This system has assumed that you accidently switched to Japanese and has reverted your language preference to English.</p>\n"
795 . "<p>Please refresh this page in order to continue using your webmail.</p>\n";
802 * Initialize our custom error handler object
804 $oErrorHandler = new ErrorHandler($oTemplate,'error_message.tpl');
808 * Activate custom error handling
810 if (version_compare(PHP_VERSION
, "4.3.0", ">=")) {
811 $oldErrorHandler = set_error_handler(array($oErrorHandler, 'SquirrelMailErrorhandler'));
813 $oldErrorHandler = set_error_handler('SquirrelMailErrorhandler');
817 // ============================================================================
818 // ================= End of Live Code, Beginning of Functions =================
819 // ============================================================================
823 * Javascript support detection function
824 * @param boolean $reset recheck javascript support if set to true.
825 * @return integer SMPREF_JS_ON or SMPREF_JS_OFF ({@see include/constants.php})
828 function checkForJavascript($reset = FALSE) {
829 global $data_dir, $username, $javascript_on, $javascript_setting;
831 if ( !$reset && sqGetGlobalVar('javascript_on', $javascript_on, SQ_SESSION
) )
832 return $javascript_on;
834 //FIXME: this isn't used anywhere else in this function; can we remove it? why is it here?
835 $user_is_logged_in = FALSE;
836 if ( $reset ||
!isset($javascript_setting) )
837 $javascript_setting = getPref($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT
);
839 if ( !sqGetGlobalVar('new_js_autodetect_results', $js_autodetect_results) &&
840 !sqGetGlobalVar('js_autodetect_results', $js_autodetect_results) )
841 $js_autodetect_results = SMPREF_JS_OFF
;
843 if ( $javascript_setting == SMPREF_JS_AUTODETECT
)
844 $javascript_on = $js_autodetect_results;
846 $javascript_on = $javascript_setting;
848 sqsession_register($javascript_on, 'javascript_on');
849 return $javascript_on;
852 function sqm_baseuri() {