<?php
/**
 * eGgroupWare admin - admin command: change the password of a given user
 *
 * @link http://www.egroupware.org
 * @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
 * @package admin
 * @copyright (c) 2007 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
 * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
 * @version $Id$ 
 */

/**
 * admin command: change the password of a given user
 */
class admin_cmd_change_pw extends admin_cmd 
{
	/**
	 * Constructor
	 *
	 * @param string/int/array $account account name or id, or array with all parameters
	 * @param string $password=null password
	 */
	function __construct($account,$password=null)
	{
		if (!is_array($account))
		{
			$account = array(
				'account' => $account,
				'password' => $password,
			);
		}
		admin_cmd::__construct($account);
	}

	/**
	 * change the password of a given user
	 * 
	 * @param boolean $check_only=false only run the checks (and throw the exceptions), but not the command itself
	 * @return string success message
	 * @throws egw_exception_no_admin
	 * @throws egw_exception_wrong_userinput(lang("Unknown account: %1 !!!",$this->account),15);
	 * @throws egw_exception_wrong_userinput(lang('Error changing the password for %1 !!!',$this->account),99);
	 */
	protected function exec($check_only=false)
	{
		$account_id = admin_cmd::parse_account($this->account,true);	// true = user, no group
		// check creator is still admin and not explicitly forbidden to edit accounts
		if ($this->creator) $this->_check_admin('account_access',16);
		
		if ($check_only) return true;
		
		$auth =& new auth;
		
		if (!$auth->change_password(null, $this->password, $account_id))
		{
			// as long as the auth class is not throwing itself ...
			throw new Exception(lang('Error changing the password for % !!!',$this->account),99);
		}
		$GLOBALS['hook_values']['account_id'] = $account_id;
		$GLOBALS['hook_values']['account_lid'] = $this->account;
		if (is_numeric($this->account))
		{
			admin_cmd::_instanciate_accounts();
			$GLOBALS['hook_values']['account_lid'] = admin_cmd::$accounts->id2name($this->account);
		}
		$GLOBALS['hook_values']['old_passwd'] = null;
		$GLOBALS['hook_values']['new_passwd'] = $this->password;
		$GLOBALS['egw']->hooks->process($GLOBALS['hook_values']+array(
			'location' => 'changepassword'
		),False,True);  // called for every app now, not only enabled ones)
		
		return lang('Password updated');
	}

	/**
	 * Return a title / string representation for a given command, eg. to display it
	 *
	 * @return string
	 */
	function __tostring()
	{
		return lang('change password for %1',admin_cmd::display_account($this->account));
	}
}