LangRequest.php
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<?php
namespace common\components;
use Yii;
use yii\base\InvalidConfigException;
use yii\web\Request;
use common\models\Language;
use common\models\Page;
use yii\helpers\Url;
class LangRequest extends Request
{
private $_lang_url;
public function getBaseUrl()
{
return str_replace ((IS_FRONT ? '/frontend/web' : '/backend/web'), '', parent::getBaseUrl()) . (IS_FRONT ? '' : '/admin');
}
public function getLangUrl()
{
if ($this->_lang_url === null)
{
$this->_lang_url = $this->getUrl();
$url_list = explode ('/', $this->_lang_url);
$lang_url = isset ($url_list[1]) ? $url_list[1] : null;
Language::setCurrent($lang_url);
if ($lang_url !== null && $lang_url === Language::getCurrent()->language_code
&& strpos($this->_lang_url, Language::getCurrent()->language_code) === 1)
{
$this->_lang_url = substr ($this->_lang_url, strlen (Language::getCurrent()->language_code) + 1);
}
}
return $this->_lang_url;
}
protected function resolvePathInfo()
{
$pathInfo = $this->getLangUrl();
if (($pos = strpos ($pathInfo, '?')) !== false)
{
$pathInfo = substr ($pathInfo, 0, $pos);
}
$pathInfo = urldecode ($pathInfo);
// try to encode in UTF8 if not so
// http://w3.org/International/questions/qa-forms-utf-8.html
if (! preg_match ('%^(?:
[\x09\x0A\x0D\x20-\x7E] # ASCII
| [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
)*$%xs', $pathInfo)
)
{
$pathInfo = utf8_encode($pathInfo);
}
$scriptUrl = $this->getScriptUrl();
$baseUrl = $this->getBaseUrl();
if (strpos($pathInfo, $scriptUrl) === 0)
{
$pathInfo = substr($pathInfo, strlen($scriptUrl));
}
else if ($baseUrl === '' || strpos($pathInfo, $baseUrl) === 0)
{
$pathInfo = substr($pathInfo, strlen($baseUrl));
}
elseif (isset ($_SERVER['PHP_SELF']) && strpos ($_SERVER['PHP_SELF'], $scriptUrl) === 0)
{
$pathInfo = substr($_SERVER['PHP_SELF'], strlen($scriptUrl));
}
else
{
throw new InvalidConfigException('Unable to determine the path info of the current request.');
}
if ($pathInfo[0] === '/')
{
$pathInfo = substr ($pathInfo, 1);
}
return (string) $pathInfo;
}
}