<?php
// (c) Copyright 2002-2011 by authors of the Tiki Wiki CMS Groupware Project
// 
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id: tiki-channel.php 37837 2011-09-30 21:33:35Z changi67 $

$inputConfiguration = array( array(
	'staticKeyFiltersForArrays' => array(
		'channels' => 'rawhtml_unsafe',
	),
) );

require_once 'tiki-setup.php';
require_once 'lib/profilelib/profilelib.php';
require_once 'lib/profilelib/installlib.php';
require_once 'lib/profilelib/channellib.php';

// This file will handle a second mode of authentication, don't limit it to permissions.
// Only channels registered through the admin panel can be executed.
// Each channel execution validates access rights.

if ( ! isset($_REQUEST['channels']) || ! is_array($_REQUEST['channels']) ) {
	$access->display_error( 'tiki-channel.php', tra('Invalid request. Expecting channels array.') );
}

$calls = array();
$channels = array();

foreach ( $_REQUEST['channels'] as $info )
{
	if ( ! isset( $info['channel_name'] ) ) {
		$access->display_error( 'tiki-channel.php', tra('Missing channel name.') );
	}

	$channel = $info['channel_name'];
	$channels[] = $channel;
	unset($info['channel_name']);
	$calls[] = array( $channel, $info ); 
}

$config = Tiki_Profile_ChannelList::fromConfiguration( $prefs['profile_channels'] );

$channels = array_unique( $channels );
$groups = $tikilib->get_user_groups( $user );

if ( ! $user && ! $config->canExecuteChannels( $channels, $groups ) ) {
	// User not defined and some groups missing, likely to be a machine
	if ( ! $access->http_auth() ) {
		$access->display_error( 'tiki-channel.php', tra('Authentication required.') );
	}

	// Get the new ones
	$groups = $tikilib->get_user_groups( $user );
}

if ( ! $config->canExecuteChannels( $channels, $groups ) ) {
	$access->display_error( 'tiki-channel.php', tra('One of the requested channels cannot be requested. It does not exist or permission is denied.') );
}

$profiles = $config->getProfiles( $channels );

if ( count($profiles) != count($channels) ) {
	$access->display_error( 'tiki-channel.php', tra('One of the install profiles could not be obtained.') );
}

Tiki_Profile::useUnicityPrefix(uniqid());
$installer = new Tiki_Profile_Installer;
$installer->limitGlobalPreferences( array() );

foreach ( $calls as $call ) {
	list( $channel, $userInput ) = $call;

	// Profile can be installed multiple times
	// Only last values preserved
	$profile = $profiles[$channel];
	$installer->forget( $profile );

	$installer->setUserData( $userInput );
	$installer->install( $profile );
}

if ( isset($_REQUEST['return_uri']) ) {
	header( "Location: {$_REQUEST['return_uri']}" );
}
