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<?php

/**
 * Yii Requirement Checker script.
 *
 * This script will check if your system meets the requirements for running
 * Yii-powered Web applications.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 *
 * @link http://www.yiiframework.com/
 *
 * @copyright 2008-2013 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 *
 * @since 1.0
 */
/**
 * @var array List of requirements (name, required or not, result, used by, memo)
 */
 include_once dirname(__FILE__).'/../_functions.php';
$requirements = array(
 array(
 t('yii', 'PHP version'),
 true,
 version_compare(PHP_VERSION, '5.1.0', '>='),
 '<a href="http://www.yiiframework.com">Yii Framework</a>',
 t('yii', 'PHP 5.1.0 or higher is required.'), ),
 array(
 t('yii', '$_SERVER variable'),
 true,
 '' === $message = checkServerVar(),
 '<a href="http://www.yiiframework.com">Yii Framework</a>',
 $message, ),
 array(
 t('yii', 'Wildcard subdomain enabled'),
 true,
 checkWildCardSubdomainSupport(),
 '<a href="">SiteBuilder</a>',
 '', ),
 array(
 t('yii', 'Reflection extension'),
 true,
 class_exists('Reflection', false),
 '<a href="http://www.yiiframework.com">Yii Framework</a>',
 '', ),
 array(
 t('yii', 'PCRE extension'),
 true,
 extension_loaded('pcre'),
 '<a href="http://www.yiiframework.com">Yii Framework</a>',
 '', ),
 array(
 t('yii', 'SPL extension'),
 true,
 extension_loaded('SPL'),
 '<a href="http://www.yiiframework.com">Yii Framework</a>',
 '', ),

array(
 t('yii', 'PDO extension'),
 true,
 extension_loaded('pdo'),
 t('yii', 'All <a href="http://www.yiiframework.com/doc/api/#system.db">DB-related classes</a>'),
 '', ),

array(
 t('yii', 'PDO MySQL extension'),
 true,
 extension_loaded('pdo_mysql'),
 t('yii', 'All <a href="http://www.yiiframework.com/doc/api/#system.db">DB-related classes</a>'),
 t('yii', 'Required for MySQL database.'), ),
 array(
 t('yii', 'GD extension with FreeType support or ImageMagick extension with PNG support'),
 false,
 '' === $message = checkCaptchaSupport(),
 '<a href="http://www.yiiframework.com/doc/api/CCaptchaAction">CCaptchaAction</a>',
 $message, ),
 array(
 t('yii', 'max_input_vars'),
 true,
 ini_get('max_input_vars') >= 10000,
 t('yii', '<a href="">SiteBuilder</a>'),
 '', ),
);

if (realpath($_SERVER['SCRIPT_FILENAME']) !== realpath(__FILE__)) {
        return t('yii', '$_SERVER["SCRIPT_FILENAME"] must be the same as the entry script file path.');
    }

if (!isset($_SERVER['REQUEST_URI']) && isset($_SERVER['QUERY_STRING'])) {
        return t('yii', 'Either $_SERVER["REQUEST_URI"] or $_SERVER["QUERY_STRING"] must exist.');
    }

if (!isset($_SERVER['PATH_INFO']) && strpos($_SERVER['PHP_SELF'], $_SERVER['SCRIPT_NAME']) !== 0) {
        return t('yii', 'Unable to determine URL path info. Please make sure $_SERVER["PATH_INFO"] (or $_SERVER["PHP_SELF"] and $_SERVER["SCRIPT_NAME"]) contains proper value.');
    }

return '';
}
function generateRandomString($length = 10)
{
 $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
 $charactersLength = strlen($characters);
 $randomString = '';
 for ($i = 0; $i < $length; ++$i) {
 $randomString .= $characters[rand(0, $charactersLength - 1)];
 }

return $randomString;
}
function checkWildCardSubdomainSupport()
{
    return dns_get_record(generateRandomString().'.'.stripDomain($_SERVER['HTTP_HOST']));

return true;
}
function checkCaptchaSupport()
{
    if (extension_loaded('imagick')) {
        $imagick = new Imagick();
        $imagickFormats = $imagick->queryFormats('PNG');
    }
    if (extension_loaded('gd')) {
        $gdInfo = gd_info();
    }
    if (isset($imagickFormats) && in_array('PNG', $imagickFormats)) {
        return '';
    } elseif (isset($gdInfo)) {
        if ($gdInfo['FreeType Support']) {
            return '';
        }

return t('yii', 'GD installed, FreeType support not installed');
 }

return t('yii', 'GD or ImageMagick not installed');
}

function getYiiVersion()
{
    $coreFile = dirname(__FILE__).'/../framework/YiiBase.php';
    if (is_file($coreFile)) {
        $contents = file_get_contents($coreFile);
        $matches = array();
        if (preg_match('/public static function getVersion.*?return \'(.*?)\'/ms', $contents, $matches) > 0) {
            return $matches[1];
        }
    }

return '';
}

/**
 * Returns a localized message according to user preferred language.
 *
 * @param string message category
 * @param string message to be translated
 * @param array parameters to be applied to the translated message
 *
 * @return string translated message
 */
function t($category, $message, $params = array())
{
    static $messages;

if ($messages === null) {
        $messages = array();
        if (($lang = getPreferredLanguage()) !== false) {
            $file = dirname(__FILE__)."/messages/$lang/yii.php";
            if (is_file($file)) {
                $messages = include $file;
            }
        }
    }

if (empty($message)) {
        return $message;
    }

if (isset($messages[$message]) && $messages[$message] !== '') {
        $message = $messages[$message];
    }

return $params !== array() ? strtr($message, $params) : $message;
}

return $lang;
    }

return false;
}

function getServerInfo()
{
 $info[] = isset($_SERVER['SERVER_SOFTWARE']) ? $_SERVER['SERVER_SOFTWARE'] : '';
 $info[] = '<a href="http://www.yiiframework.com/">Yii Framework</a>/'.getYiiVersion();
 $info[] = @strftime('%Y-%m-%d %H:%M', time());

return implode(' ', $info);
}

function renderFile($_file_, $_params_ = array())
{
    extract($_params_);
    require $_file_;
}

$result = 1;  // 1: all pass, 0: fail, -1: pass with warnings

foreach ($requirements as $i => $requirement) {
 if ($requirement[1] && !$requirement[2]) {
 $result = 0;
 } elseif ($result > 0 && !$requirement[1] && !$requirement[2]) {
 $result = -1;
 }
 if ($requirement[4] === '') {
 $requirements[$i][4] = '&nbsp;';
 }
}
$handle = fopen('requirement_checked.php', 'wt');
if ($result > 0 || $result < 0) {
 $s = '<?php return true;';
} else {
 $s = '<?php return false;';
}
fwrite($handle, $s);
$lang = getPreferredLanguage();
$viewFile = dirname(__FILE__)."/views/$lang/index.php";
if (!is_file($viewFile)) {
 $viewFile = dirname(__FILE__).'/views/index.php';
}

renderFile($viewFile, array(
    'requirements' => $requirements,
    'result' => $result,
    'serverInfo' => getServerInfo(), ));

[+] ..
[-] index.php [edit]
[-] requirement_checked.php [edit]
[+] views
[+] messages
[+] css