<?php
/**
* @version $Id: admin.users.php 421 2005-10-09 18:18:00Z stingrey $
* @package Joomla
* @subpackage Users
* @copyright Copyright (C) 2005 Open Source Matters. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/

// no direct access
defined( '_VALID_MOS' ) or die( 'Restricted access' );

if (!$acl->acl_check( 'administration', 'manage', 'users', $my->usertype, 'components', 'com_users' )) {
	mosRedirect( 'index2.php', _NOT_AUTH );
}

require_once( $mainframe->getPath( 'admin_html' ) );
require_once( $mainframe->getPath( 'class' ) );

$task 	= mosGetParam( $_REQUEST, 'task' );
$cid 	= mosGetParam( $_REQUEST, 'cid', array( 0 ) );
$id 	= intval( mosGetParam( $_REQUEST, 'id', 0 ) );
if (!is_array( $cid )) {
	$cid = array ( 0 );
}

switch ($task) {
	case 'new':
		editUser( 0, $option);
		break;

	case 'edit':
		editUser( intval( $cid[0] ), $option );
		break;

	case 'editA':
		editUser( $id, $option );
		break;

	case 'save':
	case 'apply':
 		saveUser( $option, $task );
		break;

	case 'remove':
		removeUsers( $cid, $option );
		break;

	case 'block':
		changeUserBlock( $cid, 1, $option );
		break;

	case 'unblock':
		changeUserBlock( $cid, 0, $option );
		break;

	case 'logout':
		logoutUser( $cid, $option, $task );
		break;

	case 'flogout':
		logoutUser( $id, $option, $task );
		break;

	case 'cancel':
		cancelUser( $option );
		break;

	case 'contact':
		$contact_id = mosGetParam( $_POST, 'contact_id', '' );
		mosRedirect( 'index2.php?option=com_contact&task=editA&id='. $contact_id );
		break;

	default:
		showUsers( $option );
		break;
}

function showUsers( $option ) {
	global $database, $mainframe, $my, $acl, $mosConfig_list_limit;

	$filter_type	= $mainframe->getUserStateFromRequest( "filter_type{$option}", 'filter_type', 0 );
	$filter_logged	= $mainframe->getUserStateFromRequest( "filter_logged{$option}", 'filter_logged', 0 );
	$limit 			= $mainframe->getUserStateFromRequest( "viewlistlimit", 'limit', $mosConfig_list_limit );
	$limitstart 	= $mainframe->getUserStateFromRequest( "view{$option}limitstart", 'limitstart', 0 );
	$search 		= $mainframe->getUserStateFromRequest( "search{$option}", 'search', '' );
	$search 		= $database->getEscaped( trim( strtolower( $search ) ) );
	$where 			= array();

	if (isset( $search ) && $search!= "") {
		$where[] = "(a.username LIKE '%$search%' OR a.email LIKE '%$search%' OR a.name LIKE '%$search%')";
	}
	if ( $filter_type ) {
		if ( $filter_type == 'Public Frontend' ) {
			$where[] = "a.usertype = 'Registered' OR a.usertype = 'Author' OR a.usertype = 'Editor'OR a.usertype = 'Publisher'";
		} else if ( $filter_type == 'Public Backend' ) {
			$where[] = "a.usertype = 'Manager' OR a.usertype = 'Administrator' OR a.usertype = 'Super Administrator'";
		} else {
			$where[] = "a.usertype = LOWER( '$filter_type' )";
		}
	}
	if ( $filter_logged == 1 ) {
		$where[] = "s.userid = a.id";
	} else if ($filter_logged == 2) {
		$where[] = "s.userid IS NULL";
	}

	// exclude any child group id's for this user
	//$acl->_debug = true;
	$pgids = $acl->get_group_children( $my->gid, 'ARO', 'RECURSE' );

	if (is_array( $pgids ) && count( $pgids ) > 0) {
		$where[] = "(a.gid NOT IN (" . implode( ',', $pgids ) . "))";
	}

	$query = "SELECT COUNT(a.id)"
	. "\n FROM #__users AS a";

	if ($filter_logged == 1 || $filter_logged == 2) {
		$query .= "\n INNER JOIN #__session AS s ON s.userid = a.id";
	}

	$query .= ( count( $where ) ? "\n WHERE " . implode( ' AND ', $where ) : '' )
	;
	$database->setQuery( $query );
	$total = $database->loadResult();

	require_once( $GLOBALS['mosConfig_absolute_path'] . '/administrator/includes/pageNavigation.php' );
	$pageNav = new mosPageNav( $total, $limitstart, $limit  );

	$query = "SELECT a.*, g.name AS groupname"
	. "\n FROM #__users AS a"
	. "\n INNER JOIN #__core_acl_aro AS aro ON aro.value = a.id"	// map user to aro
	. "\n INNER JOIN #__core_acl_groups_aro_map AS gm ON gm.aro_id = aro.aro_id"	// map aro to group
	. "\n INNER JOIN #__core_acl_aro_groups AS g ON g.group_id = gm.group_id";

	if ($filter_logged == 1 || $filter_logged == 2) {
		$query .= "\n INNER JOIN #__session AS s ON s.userid = a.id";
	}

	$query .= (count( $where ) ? "\n WHERE " . implode( ' AND ', $where ) : "")
	. "\n GROUP BY a.id"
	. "\n LIMIT $pageNav->limitstart, $pageNav->limit"
	;
	$database->setQuery( $query );
	$rows = $database->loadObjectList();

	if ($database->getErrorNum()) {
		echo $database->stderr();
		return false;
	}

	$template = 'SELECT COUNT(s.userid) FROM #__session AS s WHERE s.userid = %d';
	$n = count( $rows );
	for ($i = 0; $i < $n; $i++) {
		$row = &$rows[$i];
		$query = sprintf( $template, intval( $row->id ) );
		$database->setQuery( $query );
		$row->loggedin = $database->loadResult();
	}

	// get list of Groups for dropdown filter
	$query = "SELECT name AS value, name AS text"
	. "\n FROM #__core_acl_aro_groups"
	. "\n WHERE name != 'ROOT'"
	. "\n AND name != 'USERS'"
	;
	$types[] = mosHTML::makeOption( '0', '- Select Group -' );
	$database->setQuery( $query );
	$types = array_merge( $types, $database->loadObjectList() );
	$lists['type'] = mosHTML::selectList( $types, 'filter_type', 'class="inputbox" size="1" onchange="document.adminForm.submit( );"', 'value', 'text', "$filter_type" );

	// get list of Log Status for dropdown filter
	$logged[] = mosHTML::makeOption( 0, '- Select Log Status - ');
	$logged[] = mosHTML::makeOption( 1, 'Logged In');
	$lists['logged'] = mosHTML::selectList( $logged, 'filter_logged', 'class="inputbox" size="1" onchange="document.adminForm.submit( );"', 'value', 'text', "$filter_logged" );

	HTML_users::showUsers( $rows, $pageNav, $search, $option, $lists );
}

/**
 * Edit the user
 * @param int The user ID
 * @param string The URL option
 */
function editUser( $uid='0', $option='users' ) {
	global $database, $my, $acl, $mainframe;

	$row = new mosUser( $database );
	// load the row from the db table
	$row->load( $uid );

	if ( $uid ) {
		$query = "SELECT *"
		. "\n FROM #__contact_details"
		. "\n WHERE user_id = $row->id"
		;
		$database->setQuery( $query );
		$contact = $database->loadObjectList();
	} else {
		$contact 	= NULL;
		$row->block = 0;
	}

	// check to ensure only super admins can edit super admin info
	if ( ( $my->gid < 25 ) && ( $row->gid == 25 ) ) {
		mosRedirect( 'index2.php?option=com_users', _NOT_AUTH );
	}

	$my_group = strtolower( $acl->get_group_name( $row->gid, 'ARO' ) );
	if ( $my_group == 'super administrator' ) {
		$lists['gid'] = '<input type="hidden" name="gid" value="'. $my->gid .'" /><strong>Super Administrator</strong>';
	} else if ( $my->gid == 24 && $row->gid == 24 ) {
		$lists['gid'] = '<input type="hidden" name="gid" value="'. $my->gid .'" /><strong>Administrator</strong>';
	} else {
		// ensure user can't add group higher than themselves
		$my_groups = $acl->get_object_groups( 'users', $my->id, 'ARO' );
		if (is_array( $my_groups ) && count( $my_groups ) > 0) {
			$ex_groups = $acl->get_group_children( $my_groups[0], 'ARO', 'RECURSE' );
		} else {
			$ex_groups = array();
		}

		$gtree = $acl->get_group_children_tree( null, 'USERS', false );

		// remove users 'above' me
		$i = 0;
		while ($i < count( $gtree )) {
			if (in_array( $gtree[$i]->value, $ex_groups )) {
				array_splice( $gtree, $i, 1 );
			} else {
				$i++;
			}
		}

		$lists['gid'] 		= mosHTML::selectList( $gtree, 'gid', 'size="10"', 'value', 'text', $row->gid );
	}

	// build the html select list
	$lists['block'] 		= mosHTML::yesnoRadioList( 'block', 'class="inputbox" size="1"', $row->block );
	// build the html select list
	$lists['sendEmail'] 	= mosHTML::yesnoRadioList( 'sendEmail', 'class="inputbox" size="1"', $row->sendEmail );

	$file 	= $mainframe->getPath( 'com_xml', 'com_users' );
	$params =& new mosUserParameters( $row->params, $file, 'component' );

	HTML_users::edituser( $row, $contact, $lists, $option, $uid, $params );
}

function saveUser( $option, $task ) {
	global $database, $my;
	global $mosConfig_live_site, $mosConfig_mailfrom, $mosConfig_fromname, $mosConfig_sitename;

	$row = new mosUser( $database );
	if (!$row->bind( $_POST )) {
		echo "<script> alert('".$row->getError()."'); window.history.go(-1); </script>\n";
		exit();
	}

	$isNew 	= !$row->id;
	$pwd 	= '';

	// MD5 hash convert passwords
	if ($isNew) {
		// new user stuff
		if ($row->password == '') {
			$pwd = mosMakePassword();
			$row->password = md5( $pwd );
		} else {
			$pwd = $row->password;
			$row->password = md5( $row->password );
		}
		$row->registerDate = date( 'Y-m-d H:i:s' );
	} else {
		// existing user stuff
		if ($row->password == '') {
			// password set to null if empty
			$row->password = null;
		} else {
			$row->password = md5( $row->password );
		}
	}

	// save usertype to usetype column
	$query = "SELECT name"
	. "\n FROM #__core_acl_aro_groups"
	. "\n WHERE group_id = $row->gid"
	;
	$database->setQuery( $query );
	$usertype = $database->loadResult();
	$row->usertype = $usertype;

	// save params
	$params = mosGetParam( $_POST, 'params', '' );
	if (is_array( $params )) {
		$txt = array();
		foreach ( $params as $k=>$v) {
			$txt[] = "$k=$v";
		}
		$row->params = implode( "\n", $txt );
	}

	if (!$row->check()) {
		echo "<script> alert('".$row->getError()."'); window.history.go(-1); </script>\n";
		exit();
	}
	if (!$row->store()) {
		echo "<script> alert('".$row->getError()."'); window.history.go(-1); </script>\n";
		exit();
	}
	$row->checkin();

	session_start();
	$_SESSION['session_user_params']= $row->params;
	session_write_close();

	// update the ACL
	if ( !$isNew ) {
		$query = "SELECT aro_id"
		. "\n FROM #__core_acl_aro"
		. "\n WHERE value = '$row->id'"
		;
		$database->setQuery( $query );
		$aro_id = $database->loadResult();

		$query = "UPDATE #__core_acl_groups_aro_map"
		. "\n SET group_id = $row->gid"
		. "\n WHERE aro_id = $aro_id"
		;
		$database->setQuery( $query );
		$database->query() or die( $database->stderr() );
	}

	// for new users, email username and password
	if ($isNew) {
		$query = "SELECT email"
		. "\n FROM #__users"
		. "\n WHERE id = $my->id"
		;
		$database->setQuery( $query );
		$adminEmail = $database->loadResult();

		$subject = _NEW_USER_MESSAGE_SUBJECT;
		$message = sprintf ( _NEW_USER_MESSAGE, $row->name, $mosConfig_sitename, $mosConfig_live_site, $row->username, $pwd );

		if ($mosConfig_mailfrom != "" && $mosConfig_fromname != "") {
			$adminName 	= $mosConfig_fromname;
			$adminEmail = $mosConfig_mailfrom;
		} else {
			$query = "SELECT name, email"
			. "\n FROM #__users"
			// administrator
			. "\n WHERE gid = 25"
			;
			$database->setQuery( $query );
			$admins = $database->loadObjectList();
			$admin 		= $admins[0];
			$adminName 	= $admin->name;
			$adminEmail = $admin->email;
		}
		mosMail( $adminEmail, $adminName, $row->email, $subject, $message );
	}

	switch ( $task ) {
		case 'apply':
			$msg = 'Successfully Saved changes to User: '. $row->name;
			mosRedirect( 'index2.php?option=com_users&task=editA&hidemainmenu=1&id='. $row->id, $msg );
			break;

		case 'save':
		default:
			$msg = 'Successfully Saved User: '. $row->name;
			mosRedirect( 'index2.php?option=com_users', $msg );
			break;
	}
}

/**
* Cancels an edit operation
* @param option component option to call
*/
function cancelUser( $option ) {
	mosRedirect( 'index2.php?option='. $option .'&task=view' );
}

function removeUsers( $cid, $option ) {
	global $database, $acl, $my;

	if (!is_array( $cid ) || count( $cid ) < 1) {
		echo "<script> alert('Select an item to delete'); window.history.go(-1);</script>\n";
		exit;
	}

	if ( count( $cid ) ) {
		$obj = new mosUser( $database );
		foreach ($cid as $id) {
			// check for a super admin ... can't delete them
			$groups 	= $acl->get_object_groups( 'users', $id, 'ARO' );
			$this_group = strtolower( $acl->get_group_name( $groups[0], 'ARO' ) );
			if ( $this_group == 'super administrator' ) {
				$msg = "You cannot delete a Super Administrator";
 			} else if ( $id == $my->id ){
 				$msg = "You cannot delete Yourself!";
 			} else if ( ( $this_group == 'administrator' ) && ( $my->gid == 24 ) ){
 				$msg = "You cannot delete another `Administrator` only `Super Administrators` have this power";
			} else {
				$obj->delete( $id );
				$msg = $obj->getError();
			}
		}
	}

	mosRedirect( 'index2.php?option='. $option, $msg );
}

/**
* Blocks or Unblocks one or more user records
* @param array An array of unique category id numbers
* @param integer 0 if unblock, 1 if blocking
* @param string The current url option
*/
function changeUserBlock( $cid=null, $block=1, $option ) {
	global $database;

	if (count( $cid ) < 1) {
		$action = $block ? 'block' : 'unblock';
		echo "<script> alert('Select an item to $action'); window.history.go(-1);</script>\n";
		exit;
	}

	$cids = implode( ',', $cid );

	$query = "UPDATE #__users"
	. "\n SET block = $block"
	. "\n WHERE id IN ( $cids )"
	;
	$database->setQuery( $query );
	if (!$database->query()) {
		echo "<script> alert('".$database->getErrorMsg()."'); window.history.go(-1); </script>\n";
		exit();
	}

	mosRedirect( 'index2.php?option='. $option );
}

/**
* @param array An array of unique user id numbers
* @param string The current url option
*/
function logoutUser( $cid=null, $option, $task ) {
	global $database, $my;

	if ( is_array( $cid ) ) {
		if (count( $cid ) < 1) {
			mosRedirect( 'index2.php?option='. $option, 'Please select a user' );
		}
		
		foreach( $cid as $cidA ) {
			$temp = new mosUser( $database );
			$temp->load( $cidA );
			
			// check to see whether a Administrator is attempting to log out a Super Admin
			if ( !( $my->gid == 24 && $temp->gid == 25 ) ) {
				$id[] = $cidA;
			}
		}	
		$ids = implode( ',', $id );		
	} else {
		$temp = new mosUser( $database );
		$temp->load( $cid );
		
		// check to see whether a Administrator is attempting to log out a Super Admin
		if ( $my->gid == 24 && $temp->gid == 25 ) {
			echo "<script> alert('You cannot log out a Super Administrator'); window.history.go(-1); </script>\n";
			exit();
		}
		$ids = $cid;
	}

	$query = "DELETE FROM #__session"
 	. "\n WHERE userid IN ( $ids )"
 	;
	$database->setQuery( $query );
	$database->query();

	switch ( $task ) {
		case 'flogout':
			mosRedirect( 'index2.php', $database->getErrorMsg() );
			break;

		default:
			mosRedirect( 'index2.php?option='. $option, $database->getErrorMsg() );
			break;
	}
}

function is_email($email){
	$rBool=false;

	if(preg_match("/[\w\.\-]+@\w+[\w\.\-]*?\.\w{1,4}/", $email)){
		$rBool=true;
	}
	
	return $rBool;
}
?>