Extract.php

<?php
/*+**********************************************************************************
 * The contents of this file are subject to the vtiger CRM Public License Version 1.1
 * ("License"); You may not use this file except in compliance with the License
 * The Original Code is: vtiger CRM Open Source
 * The Initial Developer of the Original Code is vtiger.
 * Portions created by vtiger are Copyright (C) vtiger.
 * All Rights Reserved.
 ************************************************************************************/

class Migration_Extract_Action extends Vtiger_Action_Controller {

	public function loginRequired() {
		return false;
	}
	public function process(Vtiger_Request $request) {
		global $root_directory, $log;
		@session_start();
		$userName = $request->get('username');
		$password = $request->get('password');

		$user = CRMEntity::getInstance('Users');
		$user->column_fields['user_name'] = $userName;
		$userid = $user->retrieve_user_id($userName);
		$userRecordModel = Users_Privileges_Model::getInstanceById($userid, 'Users');
		if($userRecordModel->isAdminUser()) {
			if ($user->doLogin($password)) {
				$zip = new ZipArchive();
				$fileName = 'vtiger8.zip';
				if ($zip->open($fileName)) {
					if ($zip->extractTo($root_directory)) {
						$zip->close();
						$_SESSION['authenticated_user_id'] = $userid;
						$_SESSION['app_unique_key'] = vglobal('application_unique_key');

						/* Give time for PHP runtime to pickup new changes after zip 
						 * for files that are include/require once previously */
						sleep(5);

						header('Location: index.php?module=Migration&view=Index&mode=step1');
					} else {
						$errorMessage = 'ERROR EXTRACTING MIGRATION ZIP FILE!';
						header('Location: migrate/index.php?error='.$errorMessage);
					}
				} else {
					$errorMessage = 'ERROR READING MIGRATION ZIP FILE!';
					header('Location: migrate/index.php?error='.$errorMessage);
				}
			} else {
				$errorMessage = 'INVALID CREDENTIALS';
				header('Location: migrate/index.php?error='.$errorMessage);
			}
		} else {
			$errorMessage = 'PERMISSION DENIED! ONLY ADMIN USERS CAN ACCESS';
			header('Location: migrate/index.php?error='.$errorMessage);
		}
	}

}