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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 Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
* @version $Id$
* @package system
* @since 1.0
*/
/**
* @var array List of requirements (name, required or not, result, used by, memo)
*/
$requirements=array(
array(
t('yii','PHP version'),
true,
version_compare(PHP_VERSION,"5.1.0",">="),
'<a href="http://www.yiiframework.com">Yii Framework</a>',
t('yii','PHP 5.1.0 or higher is required.')),
array(
t('yii','$_SERVER variable'),
true,
($message=checkServerVar()) === '',
'<a href="http://www.yiiframework.com">Yii Framework</a>',
$message),
array(
t('yii','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','DOM extension'),
false,
class_exists("DOMDocument",false),
'<a href="http://www.yiiframework.com/doc/api/CHtmlPurifier">CHtmlPurifier</a>, <a href="http://www.yiiframework.com/doc/api/CWsdlGenerator">CWsdlGenerator</a>',
''),
array(
t('yii','PDO extension'),
false,
extension_loaded('pdo'),
t('yii','All <a href="http://www.yiiframework.com/doc/api/#system.db">DB-related classes</a>'),
''),
array(
t('yii','PDO SQLite extension'),
false,
extension_loaded('pdo_sqlite'),
t('yii','All <a href="http://www.yiiframework.com/doc/api/#system.db">DB-related classes</a>'),
t('yii','This is required if you are using SQLite database.')),
array(
t('yii','PDO MySQL extension'),
false,
extension_loaded('pdo_mysql'),
t('yii','All <a href="http://www.yiiframework.com/doc/api/#system.db">DB-related classes</a>'),
t('yii','This is required if you are using MySQL database.')),
array(
t('yii','PDO PostgreSQL extension'),
false,
extension_loaded('pdo_pgsql'),
t('yii','All <a href="http://www.yiiframework.com/doc/api/#system.db">DB-related classes</a>'),
t('yii','This is required if you are using PostgreSQL database.')),
array(
t('yii','Memcache extension'),
false,
extension_loaded("memcache") || extension_loaded("memcached"),
'<a href="http://www.yiiframework.com/doc/api/CMemCache">CMemCache</a>',
extension_loaded("memcached") ? t('yii', 'To use memcached set <a href="http://www.yiiframework.com/doc/api/CMemCache#useMemcached-detail">CMemCache::useMemcached</a> to <code>true</code>.') : ''),
array(
t('yii','APC extension'),
false,
extension_loaded("apc"),
'<a href="http://www.yiiframework.com/doc/api/CApcCache">CApcCache</a>',
''),
array(
t('yii','Mcrypt extension'),
false,
extension_loaded("mcrypt"),
'<a href="http://www.yiiframework.com/doc/api/CSecurityManager">CSecurityManager</a>',
t('yii','This is required by encrypt and decrypt methods.')),
array(
t('yii','SOAP extension'),
false,
extension_loaded("soap"),
'<a href="http://www.yiiframework.com/doc/api/CWebService">CWebService</a>, <a href="http://www.yiiframework.com/doc/api/CWebServiceAction">CWebServiceAction</a>',
''),
array(
t('yii','GD extension with<br />FreeType support'),
false,
($message=checkGD()) === '',
//extension_loaded('gd'),
'<a href="http://www.yiiframework.com/doc/api/CCaptchaAction">CCaptchaAction</a>',
$message),
array(
t('yii','Ctype extension'),
false,
extension_loaded("ctype"),
'<a href="http://www.yiiframework.com/doc/api/CDateFormatter">CDateFormatter</a>, <a href="http://www.yiiframework.com/doc/api/CDateFormatter">CDateTimeParser</a>, <a href="http://www.yiiframework.com/doc/api/CTextHighlighter">CTextHighlighter</a>, <a href="http://www.yiiframework.com/doc/api/CHtmlPurifier">CHtmlPurifier</a>',
''
)
);
function checkServerVar()
{
$vars=array('HTTP_HOST','SERVER_NAME','SERVER_PORT','SCRIPT_NAME','SCRIPT_FILENAME','PHP_SELF','HTTP_ACCEPT','HTTP_USER_AGENT');
$missing=array();
foreach($vars as $var)
{
if(!isset($_SERVER[$var]))
$missing[]=$var;
}
if(!empty($missing))
return t('yii','$_SERVER does not have {vars}.',array('{vars}'=>implode(', ',$missing)));
if(realpath($_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 checkGD()
{
if(extension_loaded('gd'))
{
$gdinfo=gd_info();
if($gdinfo['FreeType Support'])
return '';
return t('yii','GD installed<br />FreeType support not installed');
}
return t('yii','GD 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) : $message;
}
function getPreferredLanguage()
{
if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) && ($n=preg_match_all('/([\w\-]+)\s*(;\s*q\s*=\s*(\d*\.\d*))?/',$_SERVER['HTTP_ACCEPT_LANGUAGE'],$matches)) > 0)
{
$languages=array();
for($i=0; $i < $n; ++$i)
$languages[$matches[1][$i]]=empty($matches[3][$i]) ? 1.0 : floatval($matches[3][$i]);
arsort($languages);
foreach($languages as $language=>$pref)
return strtolower(str_replace('-','_',$language));
}
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])
$result=0;
else if($result > 0 && !$requirement[1] && !$requirement[2])
$result=-1;
if($requirement[4] === '')
$requirements[$i][4]='&nbsp;';
}
$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()));
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