* @link http://www.yiiframework.com/
* @copyright 2008-2013 Yii Software LLC
* @license http://www.yiiframework.com/license/
* @package system
* @since 1.0
*/
/**
* @var array List of requirements (name, required or not, result, used by, memo)
*/
$requirements=array(
array(
t('yii','PHP version'),
true,
version_compare(PHP_VERSION,"5.1.0",">="),
'Yii Framework',
t('yii','PHP 5.1.0 or higher is required.')),
array(
t('yii','$_SERVER variable'),
true,
'' === $message=checkServerVar(),
'Yii Framework',
$message),
array(
t('yii','Reflection extension'),
true,
class_exists('Reflection',false),
'Yii Framework',
''),
array(
t('yii','PCRE extension'),
true,
extension_loaded("pcre"),
'Yii Framework',
''),
array(
t('yii','SPL extension'),
true,
extension_loaded("SPL"),
'Yii Framework',
''),
array(
t('yii','DOM extension'),
false,
class_exists("DOMDocument",false),
'CHtmlPurifier, CWsdlGenerator',
''),
array(
t('yii','PDO extension'),
false,
extension_loaded('pdo'),
t('yii','All DB-related classes'),
''),
array(
t('yii','PDO SQLite extension'),
false,
extension_loaded('pdo_sqlite'),
t('yii','All DB-related classes'),
t('yii','Required for SQLite database.')),
array(
t('yii','PDO MySQL extension'),
false,
extension_loaded('pdo_mysql'),
t('yii','All DB-related classes'),
t('yii','Required for MySQL database.')),
array(
t('yii','PDO PostgreSQL extension'),
false,
extension_loaded('pdo_pgsql'),
t('yii','All DB-related classes'),
t('yii','Required for PostgreSQL database.')),
array(
t('yii','PDO Oracle extension'),
false,
extension_loaded('pdo_oci'),
t('yii','All DB-related classes'),
t('yii','Required for Oracle database.')),
array(
t('yii','PDO MSSQL extension (pdo_mssql)'),
false,
extension_loaded('pdo_mssql'),
t('yii','All DB-related classes'),
t('yii','Required for MSSQL database from MS Windows')),
array(
t('yii','PDO MSSQL extension (pdo_dblib)'),
false,
extension_loaded('pdo_dblib'),
t('yii','All DB-related classes'),
t('yii','Required for MSSQL database from GNU/Linux or other UNIX.')),
array(
t('yii','PDO MSSQL extension (pdo_sqlsrv)'),
false,
extension_loaded('pdo_sqlsrv'),
t('yii','All DB-related classes'),
t('yii','Required for MSSQL database with the driver provided by Microsoft.')),
array(
t('yii','Memcache extension'),
false,
extension_loaded("memcache") || extension_loaded("memcached"),
'CMemCache',
extension_loaded("memcached") ? t('yii', 'To use memcached set CMemCache::useMemcached to true.') : ''),
array(
t('yii','APC extension'),
false,
extension_loaded("apc"),
'CApcCache',
''),
array(
t('yii','Mcrypt extension'),
false,
extension_loaded("mcrypt"),
'CSecurityManager',
t('yii','Required by encrypt and decrypt methods.')),
array(
t('yii','SOAP extension'),
false,
extension_loaded("soap"),
'CWebService, CWebServiceAction',
''),
array(
t('yii','GD extension with
FreeType support
or ImageMagick
extension with
PNG support'),
false,
'' === $message=checkCaptchaSupport(),
'CCaptchaAction',
$message),
array(
t('yii','Ctype extension'),
false,
extension_loaded("ctype"),
'CDateFormatter, CDateTimeParser, CTextHighlighter, CHtmlPurifier',
''
),
array(
t('yii','Fileinfo extension'),
false,
extension_loaded("fileinfo"),
'CFileValidator',
t('yii','Required for MIME-type validation')
),
);
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 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) : $message;
}
function getPreferredLanguage()
{
if(isset($_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)
{
$lang=strtolower(str_replace('-','_',$language));
if (preg_match("/^en\_?/", $lang))
return false;
if (!is_file($viewFile=dirname(__FILE__)."/views/$lang/index.php"))
$lang=false;
else
break;
}
return $lang;
}
return false;
}
function getServerInfo()
{
$info[]=isset($_SERVER['SERVER_SOFTWARE']) ? $_SERVER['SERVER_SOFTWARE'] : '';
$info[]='Yii Framework/'.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]=' ';
}
$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()));