http://concrete5-japan.org/community/forums/install/post-6940/

site_post.php

<?php
$path = 'http://concrete5-japan.org/tools/get_latest_version_number/?APP_VERSION=5.6.1.2';
	
$req = Request::get();
if ($req->getRequestPath() == 'check_file_get_content') {
	$file = Loader::helper('file');
	$contents = $file->getContents($path);
	if (empty($contents)) {
		echo 'ng';
	} else {
		header('Content-type: text/xml');
		echo $contents;
	}
	exit;
}

if ($req->getRequestPath() == 'check_download_remote_file') {
	Loader::library("marketplace");
	$r = Marketplace::downloadRemoteFile($path);
	if (empty($r) || $r == Package::E_PACKAGE_DOWNLOAD) {
		$response = array(Package::E_PACKAGE_DOWNLOAD);
	} else if ($r == Package::E_PACKAGE_SAVE) {
		$response = array($r);
	}
				
	if (isset($response)) {
		$errors = Package::mapError($response);
		header('Content-Type:text/html; charset=UTF-8');
		print_r($errors);
	} else {
		echo 'ok';
	}

	exit;
}

if ($req->getRequestPath() == 'check_local_updates') {
	Loader::library('update');
	$upd = new Update();
	$updates = $upd->getLocalAvailableUpdates();
	if($updates){
		foreach ($updates as $update) {
			print_r($update->getUpdateVersion());
		}
	} else {
		echo 'no update';
	}
	exit;
}

if ($req->getRequestPath() == 'check_updates_contents') {
	Loader::library('update');
	$fh = Loader::helper('file');
	$contents = $fh->getDirectoryContents(DIR_APP_UPDATES);
	
	if($contents) {
		foreach($contents as $con) {
			if (is_dir(DIR_APP_UPDATES . '/' . $con)) {
				$obj = ApplicationUpdate::get($con);
				if (is_object($obj)) {
					if (version_compare($obj->getUpdateVersion(), APP_VERSION, '>')) {
						echo $obj->getUpdateVersion();
					} else {
						echo 'app version not enough';
					}
				} else {
					echo 'application update is not available';
				}
			} else {
				echo 'directory '.$con.' is not exists';
			}
		}
	} else {
		echo 'no directories in updates';
	}

	exit;
}