YuCheng Hu
1ec191d88b
+YUCHENG HU+ git-svn-id: https://svn.code.sf.net/p/hawebs/svn@423 a2543c7e-f6e9-4f8a-8bff-1ffc34733512
76 lines
2.2 KiB
PHP
76 lines
2.2 KiB
PHP
<?php
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/**
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* Piwik - Open source web analytics
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*
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* @link http://piwik.org
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* @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
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* @version $Id: UpdateCheck.php 2058 2010-04-07 10:26:32Z matt $
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*
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* @category Piwik
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* @package Piwik
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*/
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/**
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* Class to check if a newer version of Piwik is available
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*
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* @package Piwik
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*/
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class Piwik_UpdateCheck
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{
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const CHECK_INTERVAL = 28800; // every 8 hours
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const LAST_TIME_CHECKED = 'UpdateCheck_LastTimeChecked';
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const LATEST_VERSION = 'UpdateCheck_LatestVersion';
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const PIWIK_HOST = 'http://api.piwik.org/1.0/getLatestVersion/';
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const SOCKET_TIMEOUT = 2;
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/**
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* Check for a newer version
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*
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* @param bool $force Force check
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*/
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public static function check($force = false)
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{
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$lastTimeChecked = Piwik_GetOption(self::LAST_TIME_CHECKED);
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if($force || $lastTimeChecked === false
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|| time() - self::CHECK_INTERVAL > $lastTimeChecked )
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{
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// set the time checked first, so that parallel Piwik requests don't all trigger the http requests
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Piwik_SetOption(self::LAST_TIME_CHECKED, time(), $autoload = 1);
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$parameters = array(
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'piwik_version' => Piwik_Version::VERSION,
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'php_version' => phpversion(),
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'url' => Piwik_Url::getCurrentUrlWithoutQueryString(),
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'trigger' => Piwik_Common::getRequestVar('module','','string'),
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'timezone' => Piwik_SitesManager_API::getInstance()->getDefaultTimezone(),
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);
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$url = self::PIWIK_HOST . "?" . http_build_query($parameters, '', '&');
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$timeout = self::SOCKET_TIMEOUT;
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try {
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$latestVersion = Piwik_Http::sendHttpRequest($url, $timeout);
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Piwik_SetOption(self::LATEST_VERSION, $latestVersion);
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} catch(Exception $e) {
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// e.g., disable_functions = fsockopen; allow_url_open = Off
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Piwik_SetOption(self::LATEST_VERSION, '');
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}
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}
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}
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/**
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* Returns version number of a newer Piwik release.
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*
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* @return string|false false if current version is the latest available,
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* or the latest version number if a newest release is available
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*/
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public static function isNewestVersionAvailable()
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{
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$latestVersion = Piwik_GetOption(self::LATEST_VERSION);
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if(!empty($latestVersion)
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&& version_compare(Piwik_Version::VERSION, $latestVersion) == -1)
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{
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return $latestVersion;
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}
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return false;
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}
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}
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