Updating the translation templates.
[squirrelmail.git] / 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 FIXME: disabling this for now, because we now have $sm_debug_mode, but the problem with that is that we don't know what it will be until we have loaded the config file, a good 175 lines below after several important files have been included, etc. For now, we'll trust that developers have turned on E_ALL in php.ini anyway, but this can be uncommented if not.
18 */
19 //error_reporting(E_ALL);
20
21
22 /**
23 * Make sure we have a page name
24 *
25 */
26 if ( !defined('PAGE_NAME') ) define('PAGE_NAME', NULL);
27
28
29 /**
30 * If register_globals are on, unregister globals.
31 * Second test covers boolean set as string (php_value register_globals off).
32 */
33 if ((bool) ini_get('register_globals') &&
34 strtolower(ini_get('register_globals'))!='off') {
35 /**
36 * Remove all globals that are not reserved by PHP
37 * 'value' and 'key' are used by foreach. Don't unset them inside foreach.
38 */
39 foreach ($GLOBALS as $key => $value) {
40 switch($key) {
41 case 'HTTP_POST_VARS':
42 case '_POST':
43 case 'HTTP_GET_VARS':
44 case '_GET':
45 case 'HTTP_COOKIE_VARS':
46 case '_COOKIE':
47 case 'HTTP_SERVER_VARS':
48 case '_SERVER':
49 case 'HTTP_ENV_VARS':
50 case '_ENV':
51 case 'HTTP_POST_FILES':
52 case '_FILES':
53 case '_REQUEST':
54 case 'HTTP_SESSION_VARS':
55 case '_SESSION':
56 case 'GLOBALS':
57 case 'key':
58 case 'value':
59 break;
60 default:
61 unset($GLOBALS[$key]);
62 }
63 }
64 // Unset variables used in foreach
65 unset($GLOBALS['key']);
66 unset($GLOBALS['value']);
67 }
68
69 /**
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).
73 */
74 global $null;
75 $null = NULL;
76
77 /**
78 * The global $server_os variable will be "windows" if
79 * we are working in a Windows environment or "*nix"
80 * otherwise.
81 */
82 global $server_os;
83 if (DIRECTORY_SEPARATOR == '\\') $server_os = 'windows'; else $server_os = '*nix';
84
85 /**
86 * [#1518885] session.use_cookies = off breaks SquirrelMail
87 *
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.
91 */
92 if (!(bool)ini_get('session.use_cookies') ||
93 ini_get('session.use_cookies') == 'off') {
94 ini_set('session.use_cookies','1');
95 }
96
97 /**
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.
102 *
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
106 * execution.
107 */
108 $seed = microtime() . $_SERVER['REMOTE_PORT'] . $_SERVER['REMOTE_ADDR'] . getmypid();
109
110 if (function_exists('getrusage')) {
111 /* Avoid warnings with Win32 */
112 $dat = @getrusage();
113 if (isset($dat) && is_array($dat)) { $seed .= implode('', $dat); }
114 }
115
116 if(!empty($_SERVER['UNIQUE_ID'])) {
117 $seed .= $_SERVER['UNIQUE_ID'];
118 }
119
120 $seed .= uniqid(mt_rand(),TRUE);
121 $seed .= implode( '', stat( __FILE__) );
122
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
130 // 2,147,483,647
131 //
132 $seed = hexdec(substr(md5($seed), 0, 9));
133
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. */
136 mt_srand($seed);
137
138 /**
139 * calculate SM_PATH and calculate the base_uri
140 * assumptions made: init.php is only called from plugins or from the src dir.
141 * files in the plugin directory may not be part of a subdirectory called "src"
142 *
143 */
144 if (isset($_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']);
148 } else {
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.';
152 die($error);
153 }
154 $sSM_PATH = '';
155 for($i = count($a) -2; $i > -1; --$i) {
156 $sSM_PATH .= '../';
157 if ($a[$i] === 'src' || $a[$i] === 'plugins') {
158 break;
159 }
160 }
161
162 $base_uri = implode('/', array_slice($a, 0, $i)). '/';
163
164 define('SM_PATH',$sSM_PATH);
165 define('SM_BASE_URI', $base_uri);
166
167
168 /**
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
173 * in another file.
174 */
175 $bInit = true;
176
177 /**
178 * This theme as a failsafe if no themes were found, or if we error
179 * out before anything could be initialised.
180 */
181 $color = array();
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 */
199
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');
205
206 /* load default configuration */
207 require(SM_PATH . 'config/config_default.php');
208 /* reset arrays in default configuration */
209 $ldap_server = array();
210 $plugins = array();
211 $fontsets = array();
212 $aTemplateSet = array();
213 $aTemplateSet[0]['ID'] = 'default';
214 $aTemplateSet[0]['NAME'] = 'Default';
215
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');
221 }
222
223
224 /**
225 * Set PHP error reporting level based on the SquirrelMail debug mode
226 */
227 $error_level = 0;
228 if ($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);
236
237
238 /**
239 * Detect SSL connections
240 */
241 $is_secure_connection = is_ssl_secured_connection();
242
243
244 require(SM_PATH . 'functions/plugin.php');
245 require(SM_PATH . 'include/languages.php');
246 require(SM_PATH . 'class/template/Template.class.php');
247 require(SM_PATH . 'class/error.class.php');
248
249 /**
250 * If magic_quotes_runtime is on, SquirrelMail breaks in new and creative ways.
251 * Force magic_quotes_runtime off.
252 * tassium@squirrelmail.org - I put it here in the hopes that all SM code includes this.
253 * If there's a better place, please let me know.
254 */
255 ini_set('magic_quotes_runtime','0');
256
257
258 /* if running with magic_quotes_gpc then strip the slashes
259 from POST and GET global arrays */
260 if (function_exists('get_magic_quotes_gpc') && @get_magic_quotes_gpc()) {
261 sqstripslashes($_GET);
262 sqstripslashes($_POST);
263 }
264
265
266 /* strip any tags added to the url from PHP_SELF.
267 This fixes hand crafted url XXS expoits for any
268 page that uses PHP_SELF as the FORM action */
269 $_SERVER['PHP_SELF'] = strip_tags($_SERVER['PHP_SELF']);
270
271 $PHP_SELF = php_self();
272
273 /**
274 * Initialize the session
275 */
276
277 /** set the name of the session cookie */
278 if (!isset($session_name) || !$session_name) {
279 $session_name = 'SQMSESSID';
280 }
281
282 /**
283 * When session.auto_start is On we want to destroy/close the session
284 */
285 $sSessionAutostartName = session_name();
286 $sSessionAutostartID = session_id();
287 if (!empty($sSessionAutostartID) && $sSessionAutostartName !== $session_name) {
288 $sCookiePath = ini_get('session.cookie_path');
289 $sCookieDomain = ini_get('session.cookie_domain');
290 // reset the cookie
291 sqsetcookie($sSessionAutostartName,'',1,$sCookiePath,$sCookieDomain);
292 @session_destroy();
293 session_write_close();
294 }
295
296 /**
297 * includes from classes stored in the session
298 */
299 require(SM_PATH . 'class/mime.class.php');
300
301 ini_set('session.name' , $session_name);
302 session_set_cookie_params (0, $base_uri);
303 sqsession_is_active();
304
305 /**
306 * When on login page, have to reset the user session, making
307 * sure to save session restore data first
308 */
309 if (PAGE_NAME == 'login') {
310 if (!sqGetGlobalVar('session_expired_post', $sep, SQ_SESSION))
311 $sep = '';
312 if (!sqGetGlobalVar('session_expired_location', $sel, SQ_SESSION))
313 $sel = '';
314 sqsession_destroy();
315 session_write_close();
316
317 /**
318 * in some rare instances, the session seems to stick
319 * around even after destroying it (!!), so if it does,
320 * we'll manually flatten the $_SESSION data
321 */
322 if (!empty($_SESSION))
323 $_SESSION = array();
324
325 /**
326 * Allow administrators to define custom session handlers
327 * for SquirrelMail without needing to change anything in
328 * php.ini (application-level).
329 *
330 * In config_local.php, admin needs to put:
331 *
332 * $custom_session_handlers = array(
333 * 'my_open_handler',
334 * 'my_close_handler',
335 * 'my_read_handler',
336 * 'my_write_handler',
337 * 'my_destroy_handler',
338 * 'my_gc_handler',
339 * );
340 * session_module_name('user');
341 * session_set_save_handler(
342 * $custom_session_handlers[0],
343 * $custom_session_handlers[1],
344 * $custom_session_handlers[2],
345 * $custom_session_handlers[3],
346 * $custom_session_handlers[4],
347 * $custom_session_handlers[5]
348 * );
349 *
350 * We need to replicate that code once here because PHP has
351 * long had a bug that resets the session handler mechanism
352 * when the session data is also destroyed. Because of this
353 * bug, even administrators who define custom session handlers
354 * via a PHP pre-load defined in php.ini (auto_prepend_file)
355 * will still need to define the $custom_session_handlers array
356 * in config_local.php.
357 */
358 global $custom_session_handlers;
359 if (!empty($custom_session_handlers)) {
360 $open = $custom_session_handlers[0];
361 $close = $custom_session_handlers[1];
362 $read = $custom_session_handlers[2];
363 $write = $custom_session_handlers[3];
364 $destroy = $custom_session_handlers[4];
365 $gc = $custom_session_handlers[5];
366 session_module_name('user');
367 session_set_save_handler($open, $close, $read, $write, $destroy, $gc);
368 }
369
370 sqsession_is_active();
371 session_regenerate_id();
372
373 // put session restore data back into session if necessary
374 if (!empty($sel)) {
375 sqsession_register($sel, 'session_expired_location');
376 if (!empty($sep))
377 sqsession_register($sep, 'session_expired_post');
378 }
379 }
380
381 /**
382 * SquirrelMail internal version number -- DO NOT CHANGE
383 * $sm_internal_version = array (release, major, minor)
384 */
385 $SQM_INTERNAL_VERSION = explode('.', SM_VERSION, 3);
386 $SQM_INTERNAL_VERSION[2] = intval($SQM_INTERNAL_VERSION[2]);
387
388
389 /* load prefs system; even when user not logged in, should be OK to do this here */
390 require(SM_PATH . 'functions/prefs.php');
391
392
393 /* if plugins are disabled only for one user and
394 * the current user is NOT that user, turn them
395 * back on
396 */
397 sqgetGlobalVar('username', $username, SQ_SESSION);
398 if ($disable_plugins && !empty($disable_plugins_user)
399 && $username != $disable_plugins_user) {
400 $disable_plugins = false;
401 }
402
403
404 /* remove all plugins if they are disabled */
405 if ($disable_plugins) {
406 $plugins = array();
407 }
408
409
410 /**
411 * Include Compatibility plugin if available.
412 */
413 if (!$disable_plugins && file_exists(SM_PATH . 'plugins/compatibility/functions.php'))
414 include_once(SM_PATH . 'plugins/compatibility/functions.php');
415
416
417 /**
418 * MAIN PLUGIN LOADING CODE HERE
419 * On init, we no longer need to load all plugin setup files.
420 * Now, we load the statically generated hook registrations here
421 * and let the hook calls include only the plugins needed.
422 */
423 $squirrelmail_plugin_hooks = array();
424 if (!$disable_plugins && file_exists(SM_PATH . 'config/plugin_hooks.php')) {
425 //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)
426 require(SM_PATH . 'config/plugin_hooks.php');
427 }
428
429
430 /**
431 * Plugin authors note that the "config_override" hook used to be
432 * executed here, but please adapt your plugin to use this "prefs_backend"
433 * hook instead, making sure that it does NOT return anything, since
434 * doing so will interfere with proper prefs system functionality.
435 * Of course, otherwise, this hook may be used to do any configuration
436 * overrides as needed, as well as set up a custom preferences backend.
437 */
438 $prefs_backend = do_hook('prefs_backend', $null);
439 if (isset($prefs_backend) && !empty($prefs_backend) && file_exists(SM_PATH . $prefs_backend)) {
440 require(SM_PATH . $prefs_backend);
441 } elseif (isset($prefs_dsn) && !empty($prefs_dsn)) {
442 require(SM_PATH . 'functions/db_prefs.php');
443 } else {
444 require(SM_PATH . 'functions/file_prefs.php');
445 }
446
447
448
449 /**
450 * DISABLED.
451 * Remove globalized session data in rg=on setups
452 *
453 * Code can be utilized when session is started, but data is not loaded.
454 * We have already loaded configuration and other important vars. Can't
455 * clean session globals here, beside, the cleanout of globals at the
456 * top of this file will have removed anything this code would find anyway.
457 if ((bool) @ini_get('register_globals') &&
458 strtolower(ini_get('register_globals'))!='off') {
459 foreach ($_SESSION as $key => $value) {
460 unset($GLOBALS[$key]);
461 }
462 }
463 */
464
465 sqsession_register(SM_BASE_URI,'base_uri');
466
467 /**
468 * Retrieve the language cookie
469 */
470 if (! sqgetGlobalVar('squirrelmail_language',$squirrelmail_language,SQ_COOKIE)) {
471 $squirrelmail_language = '';
472 }
473
474
475 /**
476 * In some cases, buffering all output allows more complex functionality,
477 * especially for plugins that want to add headers on hooks that are beyond
478 * the point of output having been sent to the browser otherwise.
479 *
480 * Note that we don't turn this on any earlier since we want to allow plugins
481 * to turn it on themselves via a configuration override on the prefs_backend
482 * hook.
483 *
484 */
485 if ($buffer_output) ob_start(!empty($buffered_output_handler) ? $buffered_output_handler : NULL);
486
487
488 /**
489 * Do something special for some pages. This is based on the PAGE_NAME constant
490 * set at the top of every page.
491 */
492 $set_up_langage_after_template_setup = FALSE;
493 switch (PAGE_NAME) {
494 case 'style':
495
496 // need to get the right template set up
497 //
498 sqGetGlobalVar('templateid', $templateid, SQ_GET);
499
500 // sanitize just in case...
501 //
502 $templateid = preg_replace('/(\.\.\/){1,}/', '', $templateid);
503
504 // make sure given template actually is available
505 //
506 $found_templateset = false;
507 for ($i = 0; $i < count($aTemplateSet); ++$i) {
508 if ($aTemplateSet[$i]['ID'] == $templateid) {
509 $found_templateset = true;
510 break;
511 }
512 }
513
514 // FIXME: do we need/want to check here for actual (physical) presence of template sets?
515 // selected template not available, fall back to default template
516 //
517 if (!$found_templateset) {
518 $sTemplateID = Template::get_default_template_set();
519 } else {
520 $sTemplateID = $templateid;
521 }
522
523 session_write_close();
524 break;
525
526 case 'mailto':
527 // nothing to do
528 break;
529
530 case 'redirect':
531 require(SM_PATH . 'functions/auth.php');
532 //nobreak;
533
534 case 'login':
535 require(SM_PATH . 'functions/display_messages.php' );
536 require(SM_PATH . 'functions/page_header.php');
537 require(SM_PATH . 'functions/html.php');
538
539 // reset template file cache
540 //
541 $sTemplateID = Template::get_default_template_set();
542 Template::cache_template_file_hierarchy($sTemplateID, TRUE);
543
544 /**
545 * Make sure icon variables are setup for the login page.
546 */
547 $icon_theme = $icon_themes[$icon_theme_def]['PATH'];
548 /*
549 * NOTE: The $icon_theme_path var should contain the path to the icon
550 * theme to use. If the admin has disabled icons, or the user has
551 * set the icon theme to "None," no icons will be used.
552 */
553 $icon_theme_path = (!$use_icons || $icon_theme=='none') ? NULL : ($icon_theme == 'template' ? SM_PATH . Template::calculate_template_images_directory($sTemplateID) : $icon_theme);
554
555 break;
556 default:
557 require(SM_PATH . 'functions/display_messages.php' );
558 require(SM_PATH . 'functions/page_header.php');
559 require(SM_PATH . 'functions/html.php');
560
561
562 /**
563 * Check if we are logged in
564 */
565 require(SM_PATH . 'functions/auth.php');
566
567 if ( !sqsession_is_registered('user_is_logged_in') ) {
568
569 // use $message to indicate what logout text the user
570 // will see... if 0, typical "You must be logged in"
571 // if 1, information that the user session was saved
572 // and will be resumed after (re)login
573 //
574 $message = 0;
575
576 // First we store some information in the new session to prevent
577 // information-loss.
578 //
579 $session_expired_post = $_POST;
580 $session_expired_location = PAGE_NAME;
581 if (!sqsession_is_registered('session_expired_post')) {
582 sqsession_register($session_expired_post,'session_expired_post');
583 }
584 if (!sqsession_is_registered('session_expired_location')) {
585 sqsession_register($session_expired_location,'session_expired_location');
586 if ($session_expired_location == 'compose')
587 $message = 1;
588 }
589 // signout page will deal with users who aren't logged
590 // in on its own; don't show error here
591 //
592 if ( PAGE_NAME == 'signout' ) {
593 return;
594 }
595
596 /**
597 * Initialize the template object (logout_error uses it)
598 */
599 /*
600 * $sTemplateID is not initialized when a user is not logged in, so we
601 * will use the config file defaults here. If the neccesary variables
602 * are not set, force a default value.
603 */
604 if (PAGE_NAME == 'squirrelmail_rpc') {
605 $sTemplateID = Template::get_rpc_template_set();
606 } else {
607 $sTemplateID = Template::get_default_template_set();
608 }
609 $oTemplate = Template::construct_template($sTemplateID);
610
611 set_up_language($squirrelmail_language, true);
612 if (!$message)
613 logout_error( _("You must be logged in to access this page.") );
614 else
615 logout_error( _("Your session has expired, but will be resumed after logging in again.") );
616 exit;
617 }
618
619 sqgetGlobalVar('authz',$authz,SQ_SESSION);
620
621 /**
622 * Setting the prefs backend
623 */
624 sqgetGlobalVar('prefs_cache', $prefs_cache, SQ_SESSION );
625 sqgetGlobalVar('prefs_are_cached', $prefs_are_cached, SQ_SESSION );
626
627 if ( !sqsession_is_registered('prefs_are_cached') ||
628 !isset( $prefs_cache) ||
629 !is_array( $prefs_cache)) {
630 $prefs_are_cached = false;
631 $prefs_cache = false; //array();
632 }
633
634 /**
635 * initializing user settings
636 */
637 require(SM_PATH . 'include/load_prefs.php');
638
639 /**
640 * We'll need this to later have a noframes version
641 *
642 * Check if the user has a language preference, but no cookie.
643 * Send him a cookie with his language preference, if there is
644 * such discrepancy.
645 */
646 $my_language = getPref($data_dir, $username, 'language');
647 if ($my_language != $squirrelmail_language) {
648 sqsetcookie('squirrelmail_language', $my_language, time()+2592000, $base_uri);
649 }
650
651 $set_up_langage_after_template_setup = TRUE;
652
653 $timeZone = getPref($data_dir, $username, 'timezone');
654
655 /* Check to see if we are allowed to set the TZ environment variable.
656 * We are able to do this if ...
657 * safe_mode is disabled OR
658 * safe_mode_allowed_env_vars is empty (you are allowed to set any) OR
659 * safe_mode_allowed_env_vars contains TZ
660 */
661 $tzChangeAllowed = (!ini_get('safe_mode')) ||
662 !strcmp(ini_get('safe_mode_allowed_env_vars'),'') ||
663 preg_match('/^([\w_]+,)*TZ/', ini_get('safe_mode_allowed_env_vars'));
664
665 if ( $timeZone != SMPREF_NONE && ($timeZone != "")
666 && $tzChangeAllowed ) {
667
668 // get time zone key, if strict or custom strict timezones are used
669 if (isset($time_zone_type) &&
670 ($time_zone_type == 1 || $time_zone_type == 3)) {
671 /* load time zone functions */
672 require(SM_PATH . 'include/timezones.php');
673 $realTimeZone = sq_get_tz_key($timeZone);
674 } else {
675 $realTimeZone = $timeZone;
676 }
677
678 // set time zone
679 if ($realTimeZone) {
680 putenv("TZ=".$realTimeZone);
681 }
682 }
683
684 /**
685 * php 5.1.0 added time zone functions. Set time zone with them in order
686 * to prevent E_STRICT notices and allow time zone modifications in safe_mode.
687 */
688 if (function_exists('date_default_timezone_set')) {
689 if ($timeZone != SMPREF_NONE && $timeZone != "") {
690 date_default_timezone_set($timeZone);
691 } else {
692 // interface runs on server's time zone. Remove php E_STRICT complains
693 $default_timezone = @date_default_timezone_get();
694 date_default_timezone_set($default_timezone);
695 }
696 }
697 break;
698 }
699
700 /*
701 * $sTemplateID is not initialized when a user is not logged in, so we
702 * will use the config file defaults here. If the neccesary variables
703 * are not set, force a default value.
704 *
705 * If the user is logged in, $sTemplateID will be set in load_prefs.php,
706 * so we shouldn't change it here.
707 */
708 if (!isset($sTemplateID)) {
709 if (PAGE_NAME == 'squirrelmail_rpc') {
710 $sTemplateID = Template::get_rpc_template_set();
711 } else {
712 $sTemplateID = Template::get_default_template_set();
713 }
714 $icon_theme_path = !$use_icons ? NULL : Template::calculate_template_images_directory($sTemplateID);
715 }
716
717 // template object may have already been constructed in load_prefs.php
718 //
719 if (empty($oTemplate)) {
720 $oTemplate = Template::construct_template($sTemplateID);
721 }
722
723 // We want some variables to always be available to the template
724 //
725 $oTemplate->assign('javascript_on',
726 (sqGetGlobalVar('user_is_logged_in', $user_is_logged_in, SQ_SESSION)
727 ? checkForJavascript() : 0));
728 $oTemplate->assign('base_uri', sqm_baseuri());
729 $always_include = array('sTemplateID', 'icon_theme_path');
730 foreach ($always_include as $var) {
731 $oTemplate->assign($var, (isset($$var) ? $$var : NULL));
732 }
733
734 // A few output elements are used often, so just get them once here
735 //
736 $nbsp = $oTemplate->fetch('non_breaking_space.tpl');
737 $br = $oTemplate->fetch('line_break.tpl');
738
739
740 /**
741 * Set up the language.
742 *
743 * This code block corresponds to the *default* block of the switch
744 * statement above, but the language cannot be set up until after the
745 * template is instantiated, so we set $set_up_langage_after_template_setup
746 * above and do the linguistic stuff now.
747 */
748 if ($set_up_langage_after_template_setup) {
749 $err=set_up_language(getPref($data_dir, $username, 'language'));
750
751 // Japanese translation used without mbstring support
752 if ($err==2) {
753 $sError = "<p>Your administrator needs to have PHP installed with the multibyte string extension enabled (using configure option --enable-mbstring).</p>\n"
754 . "<p>This system has assumed that you accidently switched to Japanese and has reverted your language preference to English.</p>\n"
755 . "<p>Please refresh this page in order to continue using your webmail.</p>\n";
756 error_box($sError);
757 }
758 }
759
760
761 /**
762 * Initialize our custom error handler object
763 */
764 $oErrorHandler = new ErrorHandler($oTemplate,'error_message.tpl');
765
766
767 /**
768 * Activate custom error handling
769 */
770 if (version_compare(PHP_VERSION, "4.3.0", ">=")) {
771 $oldErrorHandler = set_error_handler(array($oErrorHandler, 'SquirrelMailErrorhandler'));
772 } else {
773 $oldErrorHandler = set_error_handler('SquirrelMailErrorhandler');
774 }
775
776
777 // ============================================================================
778 // ================= End of Live Code, Beginning of Functions =================
779 // ============================================================================
780
781
782 /**
783 * Javascript support detection function
784 * @param boolean $reset recheck javascript support if set to true.
785 * @return integer SMPREF_JS_ON or SMPREF_JS_OFF ({@see include/constants.php})
786 * @since 1.5.1
787 */
788 function checkForJavascript($reset = FALSE) {
789 global $data_dir, $username, $javascript_on, $javascript_setting;
790
791 if ( !$reset && sqGetGlobalVar('javascript_on', $javascript_on, SQ_SESSION) )
792 return $javascript_on;
793
794 $user_is_logged_in = FALSE;
795 if ( $reset || !isset($javascript_setting) )
796 $javascript_setting = getPref($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
797
798 if ( !sqGetGlobalVar('new_js_autodetect_results', $js_autodetect_results) &&
799 !sqGetGlobalVar('js_autodetect_results', $js_autodetect_results) )
800 $js_autodetect_results = SMPREF_JS_OFF;
801
802 if ( $javascript_setting == SMPREF_JS_AUTODETECT )
803 $javascript_on = $js_autodetect_results;
804 else
805 $javascript_on = $javascript_setting;
806
807 sqsession_register($javascript_on, 'javascript_on');
808 return $javascript_on;
809 }
810
811 function sqm_baseuri() {
812 global $base_uri;
813 return $base_uri;
814 }