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egroupware/phpgwapi/inc/class.egw.inc.php

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switching to the new Object factory method
2001-01-11 10:52:33 +01:00
<?php
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
/**************************************************************************\
* eGroupWare API loader *
* This file was originaly written by Dan Kuykendall and Joseph Engo *
* Copyright (C) 2000, 2001 Dan Kuykendall *
* Parts Copyright (C) 2003 Free Software Foundation *
* -------------------------------------------------------------------------*
* Rewritten by RalfBecker@outdoor-training.de to store the eGW enviroment *
* (egw-object and egw_info-array) in a php-session and restore it from *
* there instead of creating it completly new on each page-request. *
* The enviroment gets now created by the egw-class *
* -------------------------------------------------------------------------*
* This library is part of the eGroupWare API http://www.egroupware.org *
* ------------------------------------------------------------------------ *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
\**************************************************************************/
updated documentation tags
2001-05-08 23:20:47 +02:00
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
/* $Id$ */
/**
* New written class to create the eGW enviroment AND restore it from a php-session
*
* @author RalfBecker@outdoor-training.de
* @copyright GPL
* @package api
* @access public
*/
class egw
{
/**
* Turn on debug mode. Will output additional data for debugging purposes.
* @var string $debug
* @access public
*/
var $debug = 0; // This will turn on debugging information.
/**
* @var egw_db-object $db instance of the db-object
*/
var $db;
var $config_table = 'phpgw_config';
updated documentation tags
2001-05-08 23:20:47 +02:00
/**
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
* Constructor: Instanciates the sub-classes
*
* @author RalfBecker@outdoor-training.de
* @param array $domain_names array with valid egw-domain names
*/
function egw($domain_names=null)
Moving large chunks of code around so that the functions.inc.php file is the main file to getting data loaded into the phpgw_info array. Basicly functions is the file to follow to see whats being loaded and where. We will need to add a bunch of debugging flags throught this file so that debugging can be turned on and the path can easily be followed.
2001-02-07 21:22:17 +01:00
{
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
$GLOBALS['egw'] =& $this; // we need to be imediatly avalilible there for the other classes we instanciate
// for the migration: reference us to the old phpgw object
$GLOBALS['phpgw'] =& $this;
// create the DB-object
$this->db =& CreateObject('phpgwapi.egw_db');
if ($this->debug)
{
$this->db->Debug = 1;
}
$this->db->set_app('phpgwapi');
$this->db->Halt_On_Error = 'no';
$this->db->connect(
$GLOBALS['egw_info']['server']['db_name'],
$GLOBALS['egw_info']['server']['db_host'],
$GLOBALS['egw_info']['server']['db_port'],
$GLOBALS['egw_info']['server']['db_user'],
$GLOBALS['egw_info']['server']['db_pass'],
$GLOBALS['egw_info']['server']['db_type']
);
// check if eGW is already setup, if not redirect to setup/
$this->db->select($this->config_table,'COUNT(config_name)',false,__LINE__,__FILE__);
if(!$this->db->next_record())
{
$setup_dir = str_replace($_SERVER['PHP_SELF'],'index.php','setup/');
echo '<center><b>Fatal Error:</b> It appears that you have not created the database tables for '
.'eGroupWare. Click <a href="' . $setup_dir . '">here</a> to run setup.</center>';
exit;
}
$this->db->Halt_On_Error = 'yes';
// Set the DB's client charset if a system-charset is set
$this->db->select($this->config_table,'config_value',array(
'config_app' => 'phpgwapi',
'config_name' => 'system_charset',
),__LINE__,__FILE__);
if ($this->db->next_record() && $this->db->f(0))
{
$this->db->Link_ID->SetCharSet($this->db->f(0));
}
// load up the $GLOBALS['egw_info']['server'] array
$this->db->select($this->config_table,'*',array('config_app' => 'phpgwapi'),__LINE__,__FILE__);
while (($row = $this->db->row(true)))
{
$GLOBALS['egw_info']['server'][$row['config_name']] = stripslashes($row['config_value']);
}
// setup the other subclasses
$this->log =& CreateObject('phpgwapi.errorlog');
$this->translation =& CreateObject('phpgwapi.translation');
$this->common =& CreateObject('phpgwapi.common');
$this->hooks =& CreateObject('phpgwapi.hooks');
$this->auth =& CreateObject('phpgwapi.auth');
$this->accounts =& CreateObject('phpgwapi.accounts');
$this->acl =& CreateObject('phpgwapi.acl');
$this->session =& CreateObject('phpgwapi.sessions',$domain_names);
$this->preferences =& CreateObject('phpgwapi.preferences');
$this->applications =& CreateObject('phpgwapi.applications');
$this->contenthistory =& CreateObject('phpgwapi.contenthistory');
$this->datetime =& CreateObject('phpgwapi.datetime');
include_once(EGW_INCLUDE_ROOT.'/phpgwapi/inc/class.error.inc.php');
register_shutdown_function(array($this->common, 'egw_final'));
if ($GLOBALS['egw_info']['flags']['currentapp'] != 'login' && $GLOBALS['egw_info']['flags']['currentapp'] != 'logout')
{
$this->verify_session();
$this->applications->read_installed_apps(); // to get translated app-titles, has to be after verify_session
$this->define_egw_constants();
$this->load_theme_info();
$this->check_app_rights();
$this->load_optional_classes();
}
setting defines for currentapp=login too
2005-07-20 14:31:58 +02:00
else // set the defines for login, in case it's more then just login
{
$this->define_egw_constants();
}
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
}
/**
* __wakeup function gets called by php while unserializing the egw-object, eg. reconnects to the DB
*
* @author RalfBecker@outdoor-training.de
*/
function __wakeup()
{
the LDAP server also needs to be re-connected
2005-07-18 00:47:54 +02:00
$GLOBALS['egw'] =& $this; // we need to be imediatly avalilible there for the other classes we instanciate
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
// for the migration: reference us to the old phpgw object
$GLOBALS['phpgw'] =& $this;
register_shutdown_function(array($this->common, 'egw_final'));
$this->db->connect(); // we need to re-connect
foreach(array('translation','hooks','auth','accounts','acl','session','preferences','applications','contenthistory','contacts') as $class)
{
if (is_object($this->$class->db))
Formatting (minor)
2001-07-26 13:02:10 +02:00
{
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
$this->$class->db->Link_ID =& $this->db->Link_ID;
Moving large chunks of code around so that the functions.inc.php file is the main file to getting data loaded into the phpgw_info array. Basicly functions is the file to follow to see whats being loaded and where. We will need to add a bunch of debugging flags throught this file so that debugging can be turned on and the path can easily be followed.
2001-02-07 21:22:17 +01:00
}
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
}
the LDAP server also needs to be re-connected
2005-07-18 00:47:54 +02:00
if ($GLOBALS['egw_info']['server']['account_repository'] == 'ldap')
{
// reconnect the LDAP server, unfortunally this does not work via accounts::__wakeup() as the common-object is not yet availible
$this->accounts->ds = $this->common->ldapConnect();
}
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
$this->define_egw_constants();
}
/**
* wakeup2 funcontion needs to be called after unserializing the egw-object
*
* It adapts the restored object/enviroment to the changed (current) application / page-request
*
* @author RalfBecker@outdoor-training.de
*/
function wakeup2()
{
// do some application specific stuff, need to be done as we are different (current) app now
if (is_object($this->template))
{
$this->template->set_root(EGW_APP_TPL);
}
$this->translation->add_app($GLOBALS['egw_info']['flags']['currentapp']);
// verify the session
$GLOBALS['egw']->verify_session();
$GLOBALS['egw']->check_app_rights();
$this->load_optional_classes();
}
/**
* load optional classes by mentioning them in egw_info[flags][enable_CLASS_class] => true
*
* Also loads the template-class if not egw_info[flags][disable_Template_class] is set
*
* Maybe the whole thing should be depricated ;-)
*/
function load_optional_classes()
{
// load classes explicitly mentioned
foreach($GLOBALS['egw_info']['flags'] as $enable_class => $enable)
{
if ($enable && substr($enable_class,0,7) == 'enable_')
Formatting (minor)
2001-07-26 13:02:10 +02:00
{
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
$enable_class = substr($enable_class,7,-6);
$this->$enable_class =& CreateObject('phpgwapi.'.$enable_class);
Formatting (minor)
2001-07-26 13:02:10 +02:00
}
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
}
// load the template class, if not turned off
if(!$GLOBALS['egw_info']['flags']['disable_Template_class'])
{
$this->template =& CreateObject('phpgwapi.Template',EGW_APP_TPL);
}
// output the header unless the developer turned it off
if (!@$GLOBALS['egw_info']['flags']['noheader'])
{
$GLOBALS['egw']->common->egw_header();
}
// Load the (depricated) app include files if they exists
if (EGW_APP_INC != "" && ! preg_match ('/phpgwapi/i', EGW_APP_INC) &&
file_exists(EGW_APP_INC . '/functions.inc.php') && !isset($_GET['menuaction']))
{
include(EGW_APP_INC . '/functions.inc.php');
}
if (!@$GLOBALS['egw_info']['flags']['noheader'] && !@$GLOBALS['egw_info']['flags']['noappheader'] &&
file_exists(EGW_APP_INC . '/header.inc.php') && !isset($_GET['menuaction']))
{
include(EGW_APP_INC . '/header.inc.php');
}
}
/**
* Verfiy there is a valid session
*
* One can specify a callback, which gets called if there's no valid session. If the callback returns true, the parameter
* containst account-details (in keys login, passwd and passwd_type) to automatic create an (anonymous session)
*
* It also checks if enforce_ssl is set in the DB and redirects to the https:// version of the site.
*
* If there is no valid session and none could be automatic created, the function will redirect to login and NOT return
*/
function verify_session()
{
if(isset($GLOBALS['egw_info']['server']['enforce_ssl']) && !$_SERVER['HTTPS'])
{
Header('Location: https://' . $GLOBALS['egw_info']['server']['hostname'] . $GLOBALS['egw_info']['server']['webserver_url'] . $_SERVER['REQUEST_URI']);
exit;
}
$account_callback = $GLOBALS['egw_info']['flags']['autocreate_session_callback'];
// check if we have a session, if not try to automatic create one
if (!$this->session->verify() &&
!($account_callback && function_exists($account_callback) && $account_callback($account) &&
($sessionid = $this->session->create($account))))
{
//echo "<p>account_callback='$account_callback', account=".print_r($account,true).", sessionid=$sessionid</p>\n"; exit;
// we forward to the same place after the re-login
if ($GLOBALS['egw_info']['server']['webserver_url'] && $GLOBALS['egw_info']['server']['webserver_url'] != '/')
{
list(,$relpath) = explode($GLOBALS['egw_info']['server']['webserver_url'],$_SERVER['PHP_SELF'],2);
}
else // the webserver-url is empty or just a slash '/' (eGW is installed in the docroot and no domain given)
{
if (preg_match('/^https?:\/\/[^\/]*\/(.*)$/',$relpath=$_SERVER['PHP_SELF'],$matches))
{
$relpath = $matches[1];
}
}
// this removes the sessiondata if its saved in the URL
$query = preg_replace('/[&]?sessionid(=|%3D)[^&]+&kp3(=|%3D)[^&]+&domain=.*$/','',$_SERVER['QUERY_STRING']);
Header('Location: '.$GLOBALS['egw_info']['server']['webserver_url'].'/login.php?cd=10&phpgw_forward='.urlencode($relpath.(!empty($query) ? '?'.$query : '')));
exit;
}
}
/**
* Verfiy the user has rights for the requested app
*
* If the user has no rights for the app (eg. called via URL) he get a permission denied page (this function does NOT return)
*/
function check_app_rights()
{
if ($GLOBALS['egw_info']['flags']['currentapp'] != 'about')
{
// This will need to use ACL in the future
if (!$GLOBALS['egw_info']['user']['apps'][$GLOBALS['egw_info']['flags']['currentapp']] ||
($GLOBALS['egw_info']['flags']['admin_only'] && !$GLOBALS['egw_info']['user']['apps']['admin']))
Formatting (minor)
2001-07-26 13:02:10 +02:00
{
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
$this->common->egw_header();
if ($GLOBALS['egw_info']['flags']['noheader'])
{
echo parse_navbar();
}
$this->log->write(array('text'=>'W-Permissions, Attempted to access %1','p1'=>$GLOBALS['egw_info']['flags']['currentapp']));
echo '<p><center><b>'.lang('Access not permitted').'</b></center>';
$this->common->egw_exit(True);
Moving large chunks of code around so that the functions.inc.php file is the main file to getting data loaded into the phpgw_info array. Basicly functions is the file to follow to see whats being loaded and where. We will need to add a bunch of debugging flags throught this file so that debugging can be turned on and the path can easily be followed.
2001-02-07 21:22:17 +01:00
}
}
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
}
/**
* Load old theme info into egw_info[theme]
*
* @deprecated all theming should be done via CSS files of the template
*/
function load_theme_info()
{
global $phpgw_info; // the theme-files use this
// at the moment we still need the theme files, hopefully they are gone soon in favor of CSS
if(@file_exists(EGW_SERVER_ROOT . '/phpgwapi/themes/' . $GLOBALS['egw_info']['user']['preferences']['common']['theme'] . '.theme'))
{
include(EGW_SERVER_ROOT . '/phpgwapi/themes/' . $GLOBALS['egw_info']['user']['preferences']['common']['theme'] . '.theme');
}
elseif(@file_exists(EGW_SERVER_ROOT . '/phpgwapi/themes/default.theme'))
{
include(EGW_SERVER_ROOT . '/phpgwapi/themes/default.theme');
}
else
{
// Hope we don't get to this point. Better then the user seeing a
// complety back screen and not know whats going on
echo '<body bgcolor="FFFFFF">';
$this->log->write(array('text'=>'F-Abort, No themes found'));
exit;
}
}
Moving large chunks of code around so that the functions.inc.php file is the main file to getting data loaded into the phpgw_info array. Basicly functions is the file to follow to see whats being loaded and where. We will need to add a bunch of debugging flags throught this file so that debugging can be turned on and the path can easily be followed.
2001-02-07 21:22:17 +01:00
1) eGW enviroment (egw_info-array and egw-object) can now be stored in a php-session and restored from there. It is no longer necessary to create it on every page-request. At the moment you need to log out to activate any changes in the config, preferences or the apps enabled for a user. This can be changed easily by invalidating the cache. 2) New way to create an anoymous session: you can specify a callback function, which gets called if the session could not be verified. The callback can use the DB or instanciate a config object to get the account-date, which it returns. A new session get then created.
2005-07-17 23:00:49 +02:00
/**
* create all the defines / constants of the eGW-enviroment (plus the depricated phpgw ones)
*/
function define_egw_constants()
{
define('SEP',filesystem_separator());
define('EGW_ACL_READ',1);
define('EGW_ACL_ADD',2);
define('EGW_ACL_EDIT',4);
define('EGW_ACL_DELETE',8);
define('EGW_ACL_PRIVATE',16);
define('EGW_ACL_GROUP_MANAGERS',32);
define('EGW_ACL_CUSTOM_1',64);
define('EGW_ACL_CUSTOM_2',128);
define('EGW_ACL_CUSTOM_3',256);
// and the old ones
define('PHPGW_ACL_READ',1);
define('PHPGW_ACL_ADD',2);
define('PHPGW_ACL_EDIT',4);
define('PHPGW_ACL_DELETE',8);
define('PHPGW_ACL_PRIVATE',16);
define('PHPGW_ACL_GROUP_MANAGERS',32);
define('PHPGW_ACL_CUSTOM_1',64);
define('PHPGW_ACL_CUSTOM_2',128);
define('PHPGW_ACL_CUSTOM_3',256);
// A few hacker resistant constants that will be used throught the program
define('EGW_TEMPLATE_DIR', $this->common->get_tpl_dir('phpgwapi'));
define('EGW_IMAGES_DIR', $this->common->get_image_path('phpgwapi'));
define('EGW_IMAGES_FILEDIR', $this->common->get_image_dir('phpgwapi'));
define('EGW_APP_ROOT', $this->common->get_app_dir());
define('EGW_APP_INC', $this->common->get_inc_dir());
define('EGW_APP_TPL', $this->common->get_tpl_dir());
define('EGW_IMAGES', $this->common->get_image_path());
define('EGW_APP_IMAGES_DIR', $this->common->get_image_dir());
// and the old ones
define('PHPGW_TEMPLATE_DIR',EGW_TEMPLATE_DIR);
define('PHPGW_IMAGES_DIR',EGW_IMAGES_DIR);
define('PHPGW_IMAGES_FILEDIR',EGW_IMAGES_FILEDIR);
define('PHPGW_APP_ROOT',EGW_APP_ROOT);
define('PHPGW_APP_INC',EGW_APP_INC);
define('PHPGW_APP_TPL',EGW_APP_TPL);
define('PHPGW_IMAGES',EGW_IMAGES);
define('PHPGW_APP_IMAGES_DIR',EGW_APP_IMAGES_DIR);
}
/**
* run string through htmlspecialchars and stripslashes
*
* @param string $s
* @return string The string with html special characters replaced with entities
*/
function strip_html($s)
{
return htmlspecialchars(stripslashes($s));
}
/**
* Link url generator
*
* Used for backwards compatibility and as a shortcut. If no url is passed, it will use PHP_SELF. Wrapper to session->link()
*
* @param string $string The url the link is for
* @param string/array $extravars Extra params to be passed to the url
* @return string The full url after processing
*/
function link($url = '', $extravars = '')
{
return $this->session->link($url, $extravars);
}
function redirect_link($url = '',$extravars='')
{
$this->redirect($this->session->link($url, $extravars));
}
/**
* Handles redirects under iis and apache, it does NOT return (calls exit)
*
* This function handles redirects under iis and apache it assumes that $phpgw->link() has already been called
*
* @param string The url ro redirect to
*/
function redirect($url = '')
{
/* global $HTTP_ENV_VARS; */
$iis = @strpos($GLOBALS['HTTP_ENV_VARS']['SERVER_SOFTWARE'], 'IIS', 0);
if(!$url)
{
$url = $_SERVER['PHP_SELF'];
}
if($iis)
{
echo "\n<HTML>\n<HEAD>\n<TITLE>Redirecting to $url</TITLE>";
echo "\n<META HTTP-EQUIV=REFRESH CONTENT=\"0; URL=$url\">";
echo "\n</HEAD><BODY>";
echo "<H3>Please continue to <a href=\"$url\">this page</a></H3>";
echo "\n</BODY></HTML>";
}
else
{
Header("Location: $url");
print("\n\n");
}
exit;
}
/**
* Shortcut to translation class
*
* This function is a basic wrapper to translation->translate()
*
* @deprecated only used in the old timetracker
* @param string The key for the phrase
* @see translation->translate()
*/
function lang($key,$args=null)
{
if (!is_array($args))
{
$args = func_get_args();
array_shift($args);
}
return $this->translation->translate($key,$args);
}
}
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