<?php
/**
* Contains code to be executed at the top of each application page.
* include this file at the top of every PHP file.
*
* This file will "pre-initialise" an application environment so that any PHP file will have a consistent
* environment with other application PHP files.
*
* This code WILL NOT check that all required functions are usable/readable, etc. This process has
* been moved to index.php (which really is only called once when a browser hits the application for the first time).
*
* The list of ADDITIONAL function files is now defined in functions.php.
*
* @author The phpLDAPadmin development team
* @package phpLDAPadmin
*/
/**
* @package phpLDAPadmin
* @subpackage Functions
*/
/* Initialize the app array. The app array is initialised each invocation of a PLA script and therefore
has no state between invocations.*/
$app = array();
/** The index we will store our config in $_SESSION */
if (! defined('APPCONFIG'))
define('APPCONFIG','plaConfig');
/**
* Catch any scripts that are called directly.
* If they are called directly, then they should be routed back through index.php
*/
$app['direct_scripts'] = array('cmd.php','index.php',
'view_jpeg_photo.php','entry_chooser.php',
'password_checker.php','download_binary_attr.php',
'unserialize.php'
);
# Which script was invoked.
$app['script_running'] = $_SERVER['SCRIPT_NAME'];
foreach ($app['direct_scripts'] as $script) {
$app['scriptOK'] = false;
if (preg_match('/'.$script.'$/',$app['script_running'])) {
$app['scriptOK'] = true;
break;
}
}
# Anything in the tools dir or cron dir can be executed directly.
if ((! $app['scriptOK'] && preg_match('/^\/[cron|tools]/',$app['script_running'])) || ! isset($_SERVER['SERVER_SOFTWARE']))
$app['scriptOK'] = true;
if (! $app['scriptOK']) {
if (isset($_REQUEST['server_id']))
header(sprintf('Location: index.php?server_id=%s',$_REQUEST['server_id']));
else
header('Location: index.php');
die();
}
/**
* All commands are disabled in read-only unless specified here
*/
$app['readwrite_cmds'] = array(
'collapse','draw_tree_node','expand',
'compare_form','compare',
'download_binary_attr','view_jpeg_photo',
'entry_chooser',
'export_form','export',
'login_form','login','logout',
'monitor',
'password_checker',
'purge_cache',
'refresh','schema','query_engine','server_info','show_cache','template_engine',
'welcome'
);
/**
* Timer stopwatch, used to instrument the application
*/
if (! function_exists('stopwatch')) {
function stopwatch() {
static $mt_previous = 0;
list($usec,$sec) = explode(' ',microtime());
$mt_current = (float)$usec + (float)$sec;
if (! $mt_previous) {
$mt_previous = $mt_current;
return 0;
} else {
$mt_diff = ($mt_current - $mt_previous);
$mt_previous = $mt_current;
return sprintf('%.5f',$mt_diff);
}
}
# For compatability - if common has been sourced a second time, then return to the calling script.
} else {
return;
}
# Set the defualt time zone, if it isnt set in php.ini
if (function_exists('date_default_timezone_set') && ! ini_get('date.timezone'))
date_default_timezone_set('UTC');
# If we are called from index.php, LIBDIR will be set, all other calls to common.php dont need to set it.
if (! defined('LIBDIR'))
define('LIBDIR','../lib/');
# For PHP5 backward/forward compatibility
if (! defined('E_STRICT'))
define('E_STRICT',2048);
# General functions needed to proceed.
ob_start();
require_once realpath(LIBDIR.'functions.php');
if (ob_get_level())
ob_end_clean();
/**
* Turn on all notices and warnings. This helps us write cleaner code (we hope at least)
* Our custom error handler receives all error notices that pass the error_reporting()
* level set above.
*/
# Call our custom defined error handler, if it is defined in functions.php
if (function_exists('app_error_handler'))
set_error_handler('app_error_handler');
# Disable error reporting until all our required functions are loaded.
error_reporting(0);
/**
* functions.php should have defined our $app['function_files'] array, listing all our
* required functions (order IS important).
* index.php should have checked they exist and are usable - we'll assume that the user
* has been via index.php, and fixed any problems already.
*/
ob_start();
if (isset($app['function_files']) && is_array($app['function_files']))
foreach ($app['function_files'] as $script)
require_once realpath($script);
# Now read in config_default.php
require_once realpath(LIBDIR.'config_default.php');
if (ob_get_level())
ob_end_clean();
# We are now ready for error reporting.
error_reporting(E_ALL);
# Start our session.
app_session_start();
# See if we have a session, we can then get our theme out
$app['theme'] = 'default';
if (isset($_SESSION[APPCONFIG]))
if (is_dir(realpath(sprintf('images/%s',$_SESSION[APPCONFIG]->getValue('appearance','theme'))))
&& is_file(realpath(sprintf('css/%s/%s',$_SESSION[APPCONFIG]->getValue('appearance','theme'),$_SESSION[APPCONFIG]->getValue('appearance','stylesheet')))))
$app['theme'] = $_SESSION[APPCONFIG]->getValue('appearance','theme');
define('CSSDIR',sprintf('css/%s',$app['theme']));
define('IMGDIR',sprintf('images/%s',$app['theme']));
# Initialise the hooks
if (file_exists(LIBDIR.'hooks.php'))
require_once LIBDIR.'hooks.php';
# If we get here, and $_SESSION[APPCONFIG] is not set, then redirect the user to the index.
if (isset($_SERVER['SERVER_SOFTWARE']) && ! isset($_SESSION[APPCONFIG])) {
if ($_SERVER['QUERY_STRING'])
header(sprintf('Location: index.php?URI=%s',base64_encode($_SERVER['QUERY_STRING'])));
else
header('Location: index.php');
die();
} else {
# SF Bug #1903987
if (! method_exists($_SESSION[APPCONFIG],'CheckCustom'))
error('Unknown situation, $_SESSION[APPCONFIG] exists, but method CheckCustom() does not','error',null,true,true);
# Check our custom variables.
# @todo Change this so that we dont process a cached session.
$_SESSION[APPCONFIG]->CheckCustom();
}
# Check for safe mode.
if (@ini_get('safe_mode') && ! get_request('cmd','GET'))
system_message(array(
'title'=>_('PHP Safe Mode'),
'body'=>_('You have PHP Safe Mode enabled. This application may work unexpectedly in Safe Mode.'),
'type'=>'info'));
# Set our timezone, if it is specified in config.php
if ($_SESSION[APPCONFIG]->getValue('appearance','timezone'))
date_default_timezone_set($_SESSION[APPCONFIG]->getValue('appearance','timezone'));
# If we are here, $_SESSION is set - so enabled DEBUGing if it has been configured.
if (($_SESSION[APPCONFIG]->getValue('debug','syslog') || $_SESSION[APPCONFIG]->getValue('debug','file'))
&& $_SESSION[APPCONFIG]->getValue('debug','level'))
define('DEBUG_ENABLED',1);
else
define('DEBUG_ENABLED',0);
if (DEBUG_ENABLED)
debug_log('Application (%s) initialised and starting with (%s).',1,0,__FILE__,__LINE__,__METHOD__,
app_version(),$_REQUEST);
# Set our PHP timelimit.
if ($_SESSION[APPCONFIG]->getValue('session','timelimit') && ! @ini_get('safe_mode'))
set_time_limit($_SESSION[APPCONFIG]->getValue('session','timelimit'));
# If debug mode is set, increase the time_limit, since we probably need it.
if (DEBUG_ENABLED && $_SESSION[APPCONFIG]->getValue('session','timelimit') && ! @ini_get('safe_mode'))
set_time_limit($_SESSION[APPCONFIG]->getValue('session','timelimit') * 5);
/**
* Language configuration. Auto or specified?
* Shall we attempt to auto-determine the language?
*/
# If we are in safe mode, and LANG is not in the allowed vars, display an error.
if (@ini_get('safe_mode') && ! in_array('LANG',explode(',',@ini_get('safe_mode_allowed_env_vars'))))
error('You are running in SAFE_MODE, but LANG is not in the safe_mode_allowed_env_vars. Please add LANG to safe_mode_allowed_env_vars','error',true,false);
$app['language'] = $_SESSION[APPCONFIG]->getValue('appearance','language');
if ($app['language'] == 'auto') {
# Make sure their browser correctly reports language. If not, skip this.
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
# Get the languages which are spetcified in the HTTP header
$app['lang_http'] = preg_split ('/[;,]+/',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
foreach ($app['lang_http'] as $key => $value) {
if (substr($value,0,2) == 'q=') {
unset($app['lang_http'][$key]);
continue;
}
$value = preg_split('/[-]+/',$value);
if (sizeof($value) == 2)
$app['lang_http'][$key] = strtolower($value[0]).'_'.strtoupper($value[1]);
else
$app['lang_http'][$key] = auto_lang(strtolower($value[0]));
}
$app['lang_http'] = array_unique($app['lang_http']);
foreach ($app['lang_http'] as $lang) {
$app['language_dir'] = LANGDIR.$lang;
if ((substr($lang,0,2) == 'en') ||
(file_exists($app['language_dir']) && is_readable($app['language_dir']))) {
# Set language
putenv('LANG='.$lang); # e.g. LANG=de_DE
$lang .= '.UTF-8';
setlocale(LC_ALL,$lang); # set LC_ALL to de_DE
bindtextdomain('messages',LANGDIR);
bind_textdomain_codeset('messages','UTF-8');
textdomain('messages');
header('Content-type: text/html; charset=UTF-8',true);
break;
}
}
#todo Generate an error if language doesnt exist.
}
} else {
# Grab the language file configured in config.php
#todo Generate an error if language doesnt exist.
if ($app['language'] != null) {
if (strcmp($app['language'],'english') == 0)
$app['language'] = 'en_GB';
# Set language
putenv('LANG='.$app['language']); # e.g. LANG=de_DE
$app['language'] .= '.UTF-8';
setlocale(LC_ALL,$app['language']); # set LC_ALL to de_DE
bindtextdomain('messages',LANGDIR);
bind_textdomain_codeset('messages','UTF-8');
textdomain('messages');
header('Content-type: text/html; charset=UTF-8',true);
}
}
/**
* Strip slashes from GET, POST, and COOKIE variables if this
* PHP install is configured to automatically addslashes()
*/
if (@get_magic_quotes_gpc() && (! isset($slashes_stripped) || ! $slashes_stripped)) {
array_stripslashes($_REQUEST);
array_stripslashes($_GET);
array_stripslashes($_POST);
array_stripslashes($_COOKIE);
$slashes_stripped = true;
}
# Create our application repository variable.
$app['server'] = $_SESSION[APPCONFIG]->getServer(get_request('server_id','REQUEST'));
/**
* Look/evaluate our timeout
*/
if (! $app['server']->isSessionValid()) {
system_message(array(
'title'=>_('Session Timed Out'),
'body'=>sprintf('%s %s %s',
_('Your Session timed out after'),$app['server']->getValue('login','timeout'),
_('min. of inactivity. You have been automatically logged out.')),
'type'=>'info'),sprintf('index.php?server_id=%s&refresh=SID_%s',$app['server']->getIndex(),$app['server']->getIndex()));
die();
}
# If syslog is enabled, we need to include the supporting file.
if ($_SESSION[APPCONFIG]->getValue('debug','syslog'))
require LIBDIR.'syslog.php';
/**
* At this point we have read all our additional function PHP files and our configuration.
* If we are using hooks, run the session_init hook.
*/
if (function_exists('run_hook'))
run_hook('post_session_init',array());
?>
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