281 lines
8.6 KiB
PHP
281 lines
8.6 KiB
PHP
<?php
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// $Header: /cvsroot/phpldapadmin/phpldapadmin/lib/common.php,v 1.80.2.7 2007/12/30 02:05:16 wurley Exp $
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/**
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* Contains code to be executed at the top of each application page.
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* include this file at the top of every PHP file.
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*
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* This file will "pre-initialise" an application environment so that any PHP file will have a consistent
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* environment with other application PHP files.
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*
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* This code WILL NOT check that all required functions are usable/readable, etc. This process has
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* been moved to index.php (which really is only called once when a browser hits the application for the first time).
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*
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* The list of ADDITIONAL function files is now defined in functions.php.
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*
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* @package phpLDAPadmin
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*/
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# The index we will store our config in $_SESSION
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define('APPCONFIG','plaConfig');
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/**
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* Catch any scripts that are called directly.
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* If they are called directly, then they should be routed back through index.php
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*/
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$app['direct_scripts'] = array('cmd.php','index.php',
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'view_jpeg_photo.php','entry_chooser.php',
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'password_checker.php','download_binary_attr.php');
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foreach ($app['direct_scripts'] as $script) {
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$scriptOK = false;
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if (preg_match('/'.$script.'$/',$_SERVER['SCRIPT_NAME'])) {
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$scriptOK = true;
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break;
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}
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}
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if (! $scriptOK) {
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if (isset($_REQUEST['server_id']))
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header(sprintf('Location: index.php?server_id=%s',$_REQUEST['server_id']));
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else
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header('Location: index.php');
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die();
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}
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/**
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* Timer stopwatch, used to instrument the application
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*/
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if (! function_exists('stopwatch')) {
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function stopwatch() {
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static $mt_previous = 0;
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list($usec,$sec) = explode(' ',microtime());
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$mt_current = (float)$usec + (float)$sec;
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if (! $mt_previous) {
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$mt_previous = $mt_current;
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return 0;
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} else {
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$mt_diff = ($mt_current - $mt_previous);
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$mt_previous = $mt_current;
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return sprintf('%.5f',$mt_diff);
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}
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}
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# For compatability - if common has been sourced a second time, then return to the calling script.
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} else {
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return;
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}
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# Set the defualt time zone, if it isnt set in php.ini
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if (function_exists('date_default_timezone_set') && ! ini_get('date.timezone'))
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date_default_timezone_set('UTC');
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# Start out instrumentation
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$timer = stopwatch();
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# If we are called from index.php, LIBDIR will be set, all other calls to common.php dont need to set it.
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if (! defined('LIBDIR'))
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define('LIBDIR','../lib/');
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# For PHP5 backward/forward compatibility
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if (! defined('E_STRICT'))
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define('E_STRICT',2048);
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# General functions needed to proceed.
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ob_start();
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require_once realpath(LIBDIR.'functions.php');
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if (ob_get_level())
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ob_end_clean();
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/**
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* Turn on all notices and warnings. This helps us write cleaner code (we hope at least)
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* Our custom error handler receives all error notices that pass the error_reporting()
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* level set above.
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*/
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# Call our custom defined error handler, if it is defined in functions.php
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if (function_exists('pla_error_handler'))
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set_error_handler('pla_error_handler');
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# Disable error reporting until all our required functions are loaded.
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error_reporting(0);
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/**
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* functions.php should have defined our $app['function_files'] array, listing all our
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* required functions (order IS important).
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* index.php should have checked they exist and are usable - we'll assume that the user
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* has been via index.php, and fixed any problems already.
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*/
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ob_start();
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if (isset($app['function_files']) && is_array($app['function_files']))
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foreach ($app['function_files'] as $file_name) {
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require_once realpath ($file_name);
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}
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# Now read in config_default.php
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require_once realpath(LIBDIR.'config_default.php');
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if (ob_get_level())
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ob_end_clean();
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# We are now ready for error reporting.
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error_reporting(E_ALL);
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# Start our session.
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pla_session_start();
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# If we get here, and $_SESSION[APPCONFIG] is not set, then redirect the user to the index.
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if (! isset($_SESSION[APPCONFIG])) {
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if (isset($_REQUEST['server_id']))
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header(sprintf('Location: index.php?server_id=%s',$_REQUEST['server_id']));
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else
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header('Location: index.php');
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die();
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} else {
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# Check our custom variables.
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# @todo: Change this so that we dont process a cached session.
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$_SESSION[APPCONFIG]->CheckCustom();
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}
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# If we are here, $_SESSION is set - so enabled DEBUGing if it has been configured.
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if (($_SESSION[APPCONFIG]->GetValue('debug','syslog') || $_SESSION[APPCONFIG]->GetValue('debug','file'))
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&& $_SESSION[APPCONFIG]->GetValue('debug','level'))
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define('DEBUG_ENABLED',1);
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else
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define('DEBUG_ENABLED',0);
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if (DEBUG_ENABLED)
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debug_log('Application (%s) initialised and starting with (%s).',1,__FILE__,__LINE__,__METHOD__,
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pla_version(),$_REQUEST);
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# Set our PHP timelimit.
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if ($_SESSION[APPCONFIG]->GetValue('session','timelimit'))
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set_time_limit($_SESSION[APPCONFIG]->GetValue('session','timelimit'));
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# If debug mode is set, increase the time_limit, since we probably need it.
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if (DEBUG_ENABLED && $_SESSION[APPCONFIG]->GetValue('session','timelimit'))
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set_time_limit($_SESSION[APPCONFIG]->GetValue('session','timelimit') * 5);
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/**
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* Language configuration. Auto or specified?
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* Shall we attempt to auto-determine the language?
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*/
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$language = $_SESSION[APPCONFIG]->GetValue('appearance','language');
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if ($language == 'auto') {
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# Make sure their browser correctly reports language. If not, skip this.
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if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
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# Get the languages which are spetcified in the HTTP header
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$HTTP_LANGS = preg_split ('/[;,]+/',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
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foreach ($HTTP_LANGS as $key => $value) {
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if (substr($value,0,2) == 'q=') {
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unset($HTTP_LANGS[$key]);
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continue;
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}
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$value = preg_split('/[-]+/',$value);
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if (sizeof($value) == 2)
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$HTTP_LANGS[$key] = strtolower($value[0]).'_'.strtoupper($value[1]);
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else
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$HTTP_LANGS[$key] = auto_lang(strtolower($value[0]));
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}
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$HTTP_LANGS = array_unique($HTTP_LANGS);
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foreach ($HTTP_LANGS as $HTTP_LANG) {
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$language_dir = LANGDIR.$HTTP_LANG;
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if ((substr($HTTP_LANG,0,2) == 'en') ||
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(file_exists($language_dir) && is_readable($language_dir))) {
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# Set language
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putenv('LANG='.$HTTP_LANG); # e.g. LANG=de_DE
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$HTTP_LANG .= '.UTF-8';
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setlocale(LC_ALL,$HTTP_LANG); # set LC_ALL to de_DE
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bindtextdomain('messages',LANGDIR);
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bind_textdomain_codeset('messages','UTF-8');
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textdomain('messages');
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header('Content-type: text/html; charset=UTF-8',true);
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break;
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}
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}
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#todo: Generate an error if language doesnt exist.
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}
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} else {
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# Grab the language file configured in config.php
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#todo: Generate an error if language doesnt exist.
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if ($language != null) {
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if (strcmp($language,'english') == 0)
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$language = 'en_GB';
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# Set language
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putenv('LANG='.$language); # e.g. LANG=de_DE
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$language .= '.UTF-8';
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setlocale(LC_ALL,$language); # set LC_ALL to de_DE
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bindtextdomain('messages',LANGDIR);
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bind_textdomain_codeset('messages','UTF-8');
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textdomain('messages');
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header('Content-type: text/html; charset=UTF-8',true);
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}
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}
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/**
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* Strip slashes from GET, POST, and COOKIE variables if this
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* PHP install is configured to automatically addslashes()
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*/
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if (get_magic_quotes_gpc() && (! isset($slashes_stripped) || ! $slashes_stripped)) {
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array_stripslashes($_REQUEST);
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array_stripslashes($_GET);
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array_stripslashes($_POST);
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array_stripslashes($_COOKIE);
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$slashes_stripped = true;
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}
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/**
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* Create our application repository variable.
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*/
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if (isset($_REQUEST['server_id'])) {
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$ldapserver = $_SESSION[APPCONFIG]->ldapservers->Instance($_REQUEST['server_id']);
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} else {
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if (isset($_SESSION[APPCONFIG]->ldapservers) && is_object($_SESSION[APPCONFIG]->ldapservers))
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$ldapserver = $_SESSION[APPCONFIG]->ldapservers->Instance(null);
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}
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/**
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* Look/evaluate our timeout
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*/
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if (isset($ldapserver) && is_object($ldapserver) && method_exists($ldapserver,'haveAuthInfo')) {
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if ($ldapserver->haveAuthInfo() && isset($ldapserver->auth_type) && $ldapserver->auth_type != 'config') {
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/**
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* If time out value has been reached:
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* - log out user
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* - put $server_id in array of recently timed out servers
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*/
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if (function_exists('session_timed_out') && session_timed_out($ldapserver)) {
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$app['url_timeout'] = sprintf('cmd.php?cmd=timeout&server_id=%s',$_REQUEST['server_id']);
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printf('<script type="text/javascript" language="javascript">location.href=\'%s\'</script>',
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htmlspecialchars($app['url_timeout']));
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die();
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}
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}
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# Update $_SESSION['activity'] for timeout and automatic logout feature
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if ($ldapserver->haveAuthInfo() && function_exists('set_lastactivity'))
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set_lastactivity($ldapserver);
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}
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/**
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* At this point we have read all our additional function PHP files and our configuration.
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* If we are using hooks, run the session_init hook.
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*/
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if (function_exists('run_hook'))
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run_hook('post_session_init',array());
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?>
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