<?php
/**
 * Test class for PHP Application
 *
 * @package PhpSecInfo
 * @author Piwik
 */

/**
 * require the PhpSecInfo_Test_Application class
 */
require_once(PHPSECINFO_BASE_DIR . '/Test/Test_Application.php');

/**
 * Test class for PHP application
 *
 * Checks PHP version
 *
 * @package PhpSecInfo
 * @author Piwik
 */
class PhpSecInfo_Test_Application_Php extends PhpSecInfo_Test_Application
{
    var $test_name = "PHP";

    var $recommended_value = null;

    function _retrieveCurrentValue()
    {
        $this->current_value = PHP_VERSION;

        $url = 'http://php.net/releases/?serialize=1&version=5';
        $timeout = Piwik_UpdateCheck::SOCKET_TIMEOUT;
        try {
            $latestVersion = Piwik_Http::sendHttpRequest($url, $timeout);
            $versionInfo = safe_unserialize($latestVersion);
            $this->recommended_value = $versionInfo['version'];
        } catch (Exception $e) {
            $this->recommended_value = '';
        }
    }

    function _execTest()
    {
        if (version_compare($this->current_value, '5.2.1') < 0) {
            return PHPSECINFO_TEST_RESULT_WARN;
        }

        if (empty($this->recommended_value)) {
            return PHPSECINFO_TEST_RESULT_ERROR;
        }

        if (version_compare($this->current_value, $this->recommended_value) >= 0) {
            return PHPSECINFO_TEST_RESULT_OK;
        }

        return PHPSECINFO_TEST_RESULT_NOTICE;
    }

    function _setMessages()
    {
        parent::_setMessages();

        $this->setMessageForResult(PHPSECINFO_TEST_RESULT_OK, 'en', "You are running PHP " . $this->current_value .
            ($this->current_value == $this->recommended_value
                ? " (the latest version)."
                : ".  The latest version is " . $this->recommended_value . "."));
        $this->setMessageForResult(PHPSECINFO_TEST_RESULT_NOTICE, 'en', "You are running PHP " . $this->current_value . ".  The latest version of PHP is " . $this->recommended_value . ".");
        $this->setMessageForResult(PHPSECINFO_TEST_RESULT_WARN, 'en', "You are running PHP " . $this->current_value . " which is really old. We recommend running the latest (stable) version of PHP which includes numerous bug fixes and security fixes.");
        $this->setMessageForResult(PHPSECINFO_TEST_RESULT_ERROR, 'en', "Unable to determine the latest version of PHP available.");
    }
}
