public static function AGet($sUrl = '')
{
if (!isset(self::$s_aResults[$sUrl])) {
if ('' === $sUrl) {
$host = Ko_Web_Request::SHttpHost();
$uri = Ko_Web_Request::SRequestUri();
} else {
$info = parse_url($sUrl);
$host = isset($info['port']) ? $info['host'] . ':' . $info['port'] : $info['host'];
$uri = isset($info['query']) ? $info['path'] . '?' . $info['query'] : $info['path'];
}
self::$s_aResults[$sUrl] = self::_AGet($host, $uri);
}
return self::$s_aResults[$sUrl];
}
/**
* @return self
*/
private static function _OGetConfig($host)
{
if (is_null($host)) {
$host = Ko_Web_Request::SHttpHost();
}
if (!isset(self::$s_aHostConfig[$host])) {
self::$s_aHostConfig[$host] = new self();
if (isset(self::$s_aConfig['global'][$host])) {
$appname = self::$s_aConfig['global'][$host];
self::$s_aHostConfig[$host]->_sAppName = $appname;
if (isset(self::$s_aConfig['app_' . $appname])) {
self::$s_aHostConfig[$host]->_sDocumentRoot = strval(self::$s_aConfig['app_' . $appname]['documentroot']);
self::$s_aHostConfig[$host]->_sRewriteConf = strval(self::$s_aConfig['app_' . $appname]['rewriteconf']);
self::$s_aHostConfig[$host]->_sRewriteCache = strval(self::$s_aConfig['app_' . $appname]['rewritecache']);
}
}
}
return self::$s_aHostConfig[$host];
}
/**
* 通过设置 POST 时允许的 ref 域名来保证基本的安全
*
* @param array $aPostAllowRefDomain 只允许ref为同样的域名 array(),
* 允许ref为任意域名 array('*'),
* 允许ref为指定某些域名 array('*.test.com', 'www.demo.com'),
* ref为空被视为可以访问不进行这些检查
*/
public static function BCheckMethod($aPostAllowRefDomain = array())
{
if ('POST' === Ko_Web_Request::SRequestMethod()) {
$referer = Ko_Web_Request::SHttpReferer();
if (strlen($referer)) {
$refinfo = parse_url(strtolower($referer));
if (empty($aPostAllowRefDomain)) {
list($host, $port) = explode(':', Ko_Web_Request::SHttpHost(), 2);
if ($refinfo['host'] !== $host) {
return false;
}
} else {
if (!self::_BCheckDomains($refinfo['host'], $aPostAllowRefDomain)) {
return false;
}
}
}
}
return true;
}
/**
* @return self
*/
private static function _OGetConfig($host, &$uri)
{
if (is_null($host)) {
$host = Ko_Web_Request::SHttpHost();
}
if (is_null($uri)) {
$uri = Ko_Web_Request::SRequestUri();
}
if (false === strpos($uri, '?')) {
$path = $uri;
$query = '';
} else {
list($path, $query) = explode('?', $uri, 2);
$query = '?' . $query;
}
$key = $host . $path;
if (!isset(self::$s_aConfigCache[$key])) {
$path = rtrim($key, '/');
$succ = false;
while (false !== ($pos = strrpos($path, '/'))) {
if ($succ = self::_BLoadConfig($key, $path, false)) {
break;
}
$path = rtrim(substr($path, 0, $pos), '/');
}
if (!$succ) {
self::_BLoadConfig($key, $path, true);
}
$rewriteuri = substr($key, strlen($path));
if (0 === strlen($rewriteuri)) {
$rewriteuri = '/';
}
self::$s_aConfigCache[$key]->_sRewriteUri = $rewriteuri . $query;
}
$uri = self::$s_aConfigCache[$key]->_sRewriteUri;
return self::$s_aConfigCache[$key];
}