Source for file init.php
Documentation is available at init.php
* init.php -- initialisation file
* File should be loaded in every file in src/ or plugins that occupate an entire frame
* @copyright © 2006 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id: init.php,v 1.28 2006/10/05 21:59:04 stevetruckstuff Exp $
* This is a development version so in order to track programmer mistakes we
* set the error reporting to E_ALL
* If register_globals are on, unregister globals.
* Second test covers boolean set as string (php_value register_globals off).
if ((bool)
ini_get('register_globals') &&
* Remove all globals that are not reserved by PHP
* 'value' and 'key' are used by foreach. Don't unset them inside foreach.
foreach ($GLOBALS as $key =>
$value) {
case 'HTTP_SESSION_VARS':
// FIXME: variable must be set only in src/login.php
// Unset variables used in foreach
unset
($GLOBALS['value']);
* [#1518885] session.use_cookies = off breaks SquirrelMail
* When session cookies are not used, all http redirects, meta refreshes,
* src/download.php and javascript URLs are broken. Setting must be set
* before session is started.
if (!(bool)
ini_get('session.use_cookies') ||
ini_get('session.use_cookies') ==
'off') {
ini_set('session.use_cookies','1');
* calculate SM_PATH and calculate the base_uri
* assumptions made: init.php is only called from plugins or from the src dir.
* files in the plugin directory may not be part of a subdirectory called "src"
if (isset
($_SERVER['SCRIPT_NAME'])) {
$a =
explode('/',$_SERVER['SCRIPT_NAME']);
} elseif (isset
($HTTP_SERVER_VARS['SCRIPT_NAME'])) {
$a =
explode('/',$HTTP_SERVER_VARS['SCRIPT_NAME']);
$error =
'Unable to detect script environment. '
.
'Please test your PHP settings and send PHP core config, $_SERVER '
.
'and $HTTP_SERVER_VARS to SquirrelMail developers.';
for($i =
count($a) -
2;$i > -
1; --
$i) {
if ($a[$i] ===
'src' ||
$a[$i] ===
'plugins') {
define('SM_BASE_URI', $base_uri);
* global var $bInit is used to check if initialisation took place.
* At this moment it's a workarounf for the include of addrbook_search_html
* inside compose.php. If we found a better way then remove this. Do only use
* this var if you know for sure a page can be called stand alone and be included
* This theme as a failsafe if no themes were found, or if we error
* out before anything could be initialised.
$color[0] =
'#DCDCDC'; /* light gray TitleBar */
$color[1] =
'#800000'; /* red */
$color[2] =
'#CC0000'; /* light red Warning/Error Messages */
$color[3] =
'#A0B8C8'; /* green-blue Left Bar Background */
$color[4] =
'#FFFFFF'; /* white Normal Background */
$color[5] =
'#FFFFCC'; /* light yellow Table Headers */
$color[6] =
'#000000'; /* black Text on left bar */
$color[7] =
'#0000CC'; /* blue Links */
$color[8] =
'#000000'; /* black Normal text */
$color[9] =
'#ABABAB'; /* mid-gray Darker version of #0 */
$color[10] =
'#666666'; /* dark gray Darker version of #9 */
$color[11] =
'#770000'; /* dark red Special Folders color */
$color[13] =
'#800000'; /* (dark red) Color for quoted text -- > 1 quote */
$color[14] =
'#ff0000'; /* (red) Color for quoted text -- >> 2 or more */
$color[15] =
'#002266'; /* (dark blue) Unselectable folders */
$color[16] =
'#ff9933'; /* (orange) Highlight color */
require
(SM_PATH .
'functions/global.php');
require
(SM_PATH .
'functions/arrays.php');
/* load default configuration */
require
(SM_PATH .
'config/config_default.php');
/* reset arrays in default configuration */
$theme[0]['PATH'] =
SM_PATH .
'themes/default_theme.php';
$theme[0]['NAME'] =
'Default';
$aTemplateSet[0]['ID'] =
'default';
$aTemplateSet[0]['NAME'] =
'Default';
/* load site configuration */
require
(SM_PATH .
'config/config.php');
/* load local configuration overrides */
require
(SM_PATH .
'config/config_local.php');
require
(SM_PATH .
'functions/plugin.php');
require
(SM_PATH .
'include/constants.php');
require
(SM_PATH .
'include/languages.php');
require
(SM_PATH .
'class/template/Template.class.php');
* If magic_quotes_runtime is on, SquirrelMail breaks in new and creative ways.
* Force magic_quotes_runtime off.
* If there's a better place, please let me know.
ini_set('magic_quotes_runtime','0');
/* if running with magic_quotes_gpc then strip the slashes
from POST and GET global arrays */
/* strip any tags added to the url from PHP_SELF.
This fixes hand crafted url XXS expoits for any
page that uses PHP_SELF as the FORM action */
$_SERVER['PHP_SELF'] =
strip_tags($_SERVER['PHP_SELF']);
/** set the name of the session cookie */
if (!isset
($session_name) ||
!$session_name) {
$session_name =
'SQMSESSID';
* if session.auto_start is On then close the session
if ((isset
($sSessionAutostartName) ||
$sSessionAutostartName ==
'') &&
$sSessionAutostartName !==
$session_name) {
$sCookiePath =
ini_get('session.cookie_path');
$sCookieDomain =
ini_get('session.cookie_domain');
setcookie($sSessionAutostartName,'',time() -
604800,$sCookiePath,$sCookieDomain);
* includes from classes stored in the session
require
(SM_PATH .
'class/mime.class.php');
ini_set('session.name' , $session_name);
* Remove globalized session data in rg=on setups
* Code can be utilized when session is started, but data is not loaded.
* We have already loaded configuration and other important vars. Can't
* clean session globals here.
if ((bool) @ini_get('register_globals') &&
strtolower(ini_get('register_globals'))!='off') {
foreach ($_SESSION as $key => $value) {
* SquirrelMail version number -- DO NOT CHANGE
$version =
'1.5.2 [CVS]';
* SquirrelMail internal version number -- DO NOT CHANGE
* $sm_internal_version = array (release, major, minor)
$SQM_INTERNAL_VERSION =
array(1,5,2);
* Retrieve the language cookie
$squirrelmail_language =
'';
* @var $sInitlocation From where do we include.
if (!isset
($sInitLocation)) {
* MAIN PLUGIN LOADING CODE HERE
* Include Compatibility plugin if available.
include_once(SM_PATH .
'plugins/compatibility/functions.php');
$squirrelmail_plugin_hooks =
array();
/* On init, register all plugins configured for use. */
if (isset
($plugins) &&
is_array($plugins)) {
// turn on output buffering in order to prevent output of new lines
foreach ($plugins as $name) {
// get output and remove whitespace
// if plugins output more than newlines and spacing, stop script execution.
* Before 1.5.2 version hook was part of functions/constants.php.
* After init layout changes, hook had to be moved because include/constants.php is
* loaded before plugins are initialized.
switch ($sInitLocation) {
// need to get the right template set up
sqGetGlobalVar('templateid', $templateid, SQ_GET);
// sanitize just in case...
$templateid =
preg_replace('/(\.\.\/){1,}/', '', $templateid);
// make sure given template actually is available
$found_templateset =
false;
for ($i =
0; $i <
count($aTemplateSet); ++
$i) {
if ($aTemplateSet[$i]['ID'] ==
$templateid) {
$found_templateset =
true;
// FIXME: do we need/want to check here for actual presence of template sets?
// selected template not available, fall back to default template
if (!$found_templateset) {
$sTemplateID =
$templateid;
* directory hashing functions are needed for all setups in case
* plugins use own pref files.
require
(SM_PATH .
'functions/prefs.php');
require
(SM_PATH .
'functions/auth.php');
/* hook loads custom prefs backend plugins */
if (isset
($prefs_backend) &&
!empty($prefs_backend) &&
file_exists(SM_PATH .
$prefs_backend)) {
require
(SM_PATH .
$prefs_backend);
} elseif (isset
($prefs_dsn) &&
!empty($prefs_dsn)) {
require
(SM_PATH .
'functions/db_prefs.php');
require
(SM_PATH .
'functions/file_prefs.php');
require
(SM_PATH .
'functions/display_messages.php' );
require
(SM_PATH .
'functions/page_header.php');
require
(SM_PATH .
'functions/html.php');
// reset template file cache
* cleanup old cookies with a cookie path the same as the standard php.ini
* cookie path. All previous SquirrelMail version used the standard php.ini
* cookie path for storing the session name. That behaviour changed.
* do not delete the standard sessions with session.name is i.e. PHPSESSID
* because they probably belong to other php apps
if (ini_get('session.name') !==
$sSessionAutostartName) {
require
(SM_PATH .
'functions/display_messages.php' );
require
(SM_PATH .
'functions/page_header.php');
require
(SM_PATH .
'functions/html.php');
require
(SM_PATH .
'functions/strings.php');
* Check if we are logged in
require
(SM_PATH .
'functions/auth.php');
// First we store some information in the new session to prevent
$session_expired_post =
$_POST;
$session_expired_location =
$PHP_SELF;
// signout page will deal with users who aren't logged
// in on its own; don't show error here
if (strpos($PHP_SELF, 'signout.php') !==
FALSE) {
* Initialize the template object (logout_error uses it)
* $sTemplateID is not initialized when a user is not logged in, so we
* will use the config file defaults here. If the neccesary variables
* are net set, force a default value.
* Setting the prefs backend
$prefs_are_cached =
false;
$prefs_cache =
false; //array();
/* see 'redirect' case */
require
(SM_PATH .
'functions/prefs.php');
if (isset
($prefs_backend) &&
!empty($prefs_backend) &&
file_exists(SM_PATH .
$prefs_backend)) {
require
(SM_PATH .
$prefs_backend);
} elseif (isset
($prefs_dsn) &&
!empty($prefs_dsn)) {
require
(SM_PATH .
'functions/db_prefs.php');
require
(SM_PATH .
'functions/file_prefs.php');
* initializing user settings
require
(SM_PATH .
'include/load_prefs.php');
// i do not understand the frames language cookie story
* We'll need this to later have a noframes version
* Check if the user has a language preference, but no cookie.
* Send him a cookie with his language preference, if there is
$my_language =
getPref($data_dir, $username, 'language');
if ($my_language !=
$squirrelmail_language) {
sqsetcookie('squirrelmail_language', $my_language, time()+
2592000, $base_uri);
/* this is the last cookie we set so flush it. */
// Japanese translation used without mbstring support
"<p>You need to have PHP installed with the multibyte string function \n".
"enabled (using configure option --enable-mbstring).</p>\n".
"<p>System assumed that you accidently switched to Japanese translation \n".
"and reverted your language preference to English.</p>\n".
"<p>Please refresh this page in order to use webmail.</p>\n";
$timeZone =
getPref($data_dir, $username, 'timezone');
/* Check to see if we are allowed to set the TZ environment variable.
* We are able to do this if ...
* safe_mode is disabled OR
* safe_mode_allowed_env_vars is empty (you are allowed to set any) OR
* safe_mode_allowed_env_vars contains TZ
$tzChangeAllowed =
(!ini_get('safe_mode')) ||
// get time zone key, if strict or custom strict timezones are used
if (isset
($time_zone_type) &&
($time_zone_type ==
1 ||
$time_zone_type ==
3)) {
/* load time zone functions */
require
(SM_PATH .
'include/timezones.php');
$realTimeZone =
$timeZone;
* php 5.1.0 added time zone functions. Set time zone with them in order
* to prevent E_STRICT notices and allow time zone modifications in safe_mode.
date_default_timezone_set($timeZone);
// interface runs on server's time zone. Remove php E_STRICT complains
$default_timezone =
@date_default_timezone_get();
date_default_timezone_set($default_timezone);
* $sTemplateID is not initialized when a user is not logged in, so we
* will use the config file defaults here. If the neccesary variables
* are not set, force a default value.
* If the user is logged in, $sTemplateID will be set in load_prefs.php,
* so we shouldn't change it here.
if (!isset
($sTemplateID)) {
// We want some variables to always be available to the template
$always_include =
array('sTemplateID', 'icon_theme_path', 'javascript_on');
foreach ($always_include as $var) {
$oTemplate->assign($var, (isset
($
$var) ? $
$var :
NULL));
* Initialize our custom error handler object
require
(SM_PATH .
'class/error.class.php');
$oErrorHandler =
new ErrorHandler($oTemplate,'error_message.tpl');
* Activate custom error handling
$oldErrorHandler =
set_error_handler(array($oErrorHandler, 'SquirrelMailErrorhandler'));
* Javascript support detection function
* @param boolean $reset recheck javascript support if set to true.
* @return integer SMPREF_JS_ON or SMPREF_JS_OFF ({@see include/constants.php})
global $data_dir, $username, $javascript_on, $javascript_setting;
if ( !$reset &&
sqGetGlobalVar('javascript_on', $javascript_on, SQ_SESSION) )
if ( $reset ||
!isset
($javascript_setting) )
if ( !sqGetGlobalVar('new_js_autodetect_results', $js_autodetect_results) &&
!sqGetGlobalVar('js_autodetect_results', $js_autodetect_results) )
$javascript_on =
$js_autodetect_results;
$javascript_on =
$javascript_setting;
Documentation generated on Sat, 07 Oct 2006 16:11:53 +0300 by phpDocumentor 1.3.0RC6