112 lines
2.8 KiB
PHP
Executable File
112 lines
2.8 KiB
PHP
Executable File
<?php
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/**
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* Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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class OC_Request {
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/**
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* @brief Returns the server host
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* @returns the server host
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*
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* Returns the server host, even if the website uses one or more
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* reverse proxies
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*/
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public static function serverHost() {
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if(OC::$CLI) {
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return 'localhost';
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}
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if(OC_Config::getValue('overwritehost', '')<>'') {
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return OC_Config::getValue('overwritehost');
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}
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if (isset($_SERVER['HTTP_X_FORWARDED_HOST'])) {
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if (strpos($_SERVER['HTTP_X_FORWARDED_HOST'], ",") !== false) {
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$host = trim(array_pop(explode(",", $_SERVER['HTTP_X_FORWARDED_HOST'])));
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}
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else{
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$host=$_SERVER['HTTP_X_FORWARDED_HOST'];
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}
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}
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else{
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$host = $_SERVER['HTTP_HOST'];
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}
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return $host;
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}
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/**
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* @brief Returns the server protocol
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* @returns the server protocol
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*
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* Returns the server protocol. It respects reverse proxy servers and load balancers
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*/
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public static function serverProtocol() {
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if(OC_Config::getValue('overwriteprotocol', '')<>'') {
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return OC_Config::getValue('overwriteprotocol');
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}
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if (isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) {
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$proto = strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']);
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}else{
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if(isset($_SERVER['HTTPS']) and !empty($_SERVER['HTTPS']) and ($_SERVER['HTTPS']!='off')) {
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$proto = 'https';
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}else{
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$proto = 'http';
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}
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}
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return $proto;
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}
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/**
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* @brief get Path info from request
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* @returns string Path info or false when not found
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*/
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public static function getPathInfo() {
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if (array_key_exists('PATH_INFO', $_SERVER)) {
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$path_info = $_SERVER['PATH_INFO'];
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}else{
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$path_info = substr($_SERVER['REQUEST_URI'], strlen($_SERVER['SCRIPT_NAME']));
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// following is taken from Sabre_DAV_URLUtil::decodePathSegment
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$path_info = rawurldecode($path_info);
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$encoding = mb_detect_encoding($path_info, array('UTF-8', 'ISO-8859-1'));
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switch($encoding) {
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case 'ISO-8859-1' :
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$path_info = utf8_encode($path_info);
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}
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// end copy
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}
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return $path_info;
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}
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/**
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* @brief Check if this is a no-cache request
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* @returns true for no-cache
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*/
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static public function isNoCache() {
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if (!isset($_SERVER['HTTP_CACHE_CONTROL'])) {
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return false;
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}
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return $_SERVER['HTTP_CACHE_CONTROL'] == 'no-cache';
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}
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/**
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* @brief Check if the requestor understands gzip
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* @returns true for gzip encoding supported
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*/
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static public function acceptGZip() {
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if (!isset($_SERVER['HTTP_ACCEPT_ENCODING'])) {
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return false;
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}
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$HTTP_ACCEPT_ENCODING = $_SERVER["HTTP_ACCEPT_ENCODING"];
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if( strpos($HTTP_ACCEPT_ENCODING, 'x-gzip') !== false )
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return 'x-gzip';
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else if( strpos($HTTP_ACCEPT_ENCODING, 'gzip') !== false )
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return 'gzip';
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return false;
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}
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}
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