You've already forked joomla_test
first commit
This commit is contained in:
alazhar
340
libraries/joomla/environment/response.php
Normal file
340
libraries/joomla/environment/response.php
Normal file
@ -0,0 +1,340 @@
|
||||
<?php
|
||||
/**
|
||||
* @package Joomla.Platform
|
||||
* @subpackage Environment
|
||||
*
|
||||
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
|
||||
* @license GNU General Public License version 2 or later; see LICENSE
|
||||
*/
|
||||
|
||||
defined('JPATH_PLATFORM') or die;
|
||||
|
||||
/**
|
||||
* JResponse Class.
|
||||
*
|
||||
* This class serves to provide the Joomla Platform with a common interface to access
|
||||
* response variables. This includes header and body.
|
||||
*
|
||||
* @package Joomla.Platform
|
||||
* @subpackage Environment
|
||||
* @since 11.1
|
||||
*/
|
||||
class JResponse
|
||||
{
|
||||
/**
|
||||
* @var array Body
|
||||
* @since 11.1
|
||||
*/
|
||||
protected static $body = array();
|
||||
|
||||
/**
|
||||
* @var boolean Cachable
|
||||
* @since 11.1
|
||||
*/
|
||||
protected static $cachable = false;
|
||||
|
||||
/**
|
||||
* @var array Headers
|
||||
* @since 11.1
|
||||
*/
|
||||
protected static $headers = array();
|
||||
|
||||
/**
|
||||
* Set/get cachable state for the response.
|
||||
*
|
||||
* If $allow is set, sets the cachable state of the response. Always returns current state.
|
||||
*
|
||||
* @param boolean $allow True to allow browser caching.
|
||||
*
|
||||
* @return boolean True if browser caching should be allowed
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function allowCache($allow = null)
|
||||
{
|
||||
if (!is_null($allow))
|
||||
{
|
||||
self::$cachable = (bool) $allow;
|
||||
}
|
||||
|
||||
return self::$cachable;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set a header.
|
||||
*
|
||||
* If $replace is true, replaces any headers already defined with that $name.
|
||||
*
|
||||
* @param string $name The name of the header to set.
|
||||
* @param string $value The value of the header to set.
|
||||
* @param boolean $replace True to replace any existing headers by name.
|
||||
*
|
||||
* @return void
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function setHeader($name, $value, $replace = false)
|
||||
{
|
||||
$name = (string) $name;
|
||||
$value = (string) $value;
|
||||
|
||||
if ($replace)
|
||||
{
|
||||
foreach (self::$headers as $key => $header)
|
||||
{
|
||||
if ($name == $header['name'])
|
||||
{
|
||||
unset(self::$headers[$key]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
self::$headers[] = array('name' => $name, 'value' => $value);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return array of headers.
|
||||
*
|
||||
* @return array
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function getHeaders()
|
||||
{
|
||||
return self::$headers;
|
||||
}
|
||||
|
||||
/**
|
||||
* Clear headers.
|
||||
*
|
||||
* @return void
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function clearHeaders()
|
||||
{
|
||||
self::$headers = array();
|
||||
}
|
||||
|
||||
/**
|
||||
* Send all headers.
|
||||
*
|
||||
* @return void
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function sendHeaders()
|
||||
{
|
||||
if (!headers_sent())
|
||||
{
|
||||
foreach (self::$headers as $header)
|
||||
{
|
||||
if ('status' == strtolower($header['name']))
|
||||
{
|
||||
// 'status' headers indicate an HTTP status, and need to be handled slightly differently
|
||||
header(ucfirst(strtolower($header['name'])) . ': ' . $header['value'], null, (int) $header['value']);
|
||||
}
|
||||
else
|
||||
{
|
||||
header($header['name'] . ': ' . $header['value'], false);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Set body content.
|
||||
*
|
||||
* If body content already defined, this will replace it.
|
||||
*
|
||||
* @param string $content The content to set to the response body.
|
||||
*
|
||||
* @return void
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function setBody($content)
|
||||
{
|
||||
self::$body = array((string) $content);
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepend content to the body content
|
||||
*
|
||||
* @param string $content The content to prepend to the response body.
|
||||
*
|
||||
* @return void
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function prependBody($content)
|
||||
{
|
||||
array_unshift(self::$body, (string) $content);
|
||||
}
|
||||
|
||||
/**
|
||||
* Append content to the body content
|
||||
*
|
||||
* @param string $content The content to append to the response body.
|
||||
*
|
||||
* @return void
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function appendBody($content)
|
||||
{
|
||||
array_push(self::$body, (string) $content);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the body content
|
||||
*
|
||||
* @param boolean $toArray Whether or not to return the body content as an array of strings or as a single string; defaults to false.
|
||||
*
|
||||
* @return string array
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function getBody($toArray = false)
|
||||
{
|
||||
if ($toArray)
|
||||
{
|
||||
return self::$body;
|
||||
}
|
||||
|
||||
ob_start();
|
||||
|
||||
foreach (self::$body as $content)
|
||||
{
|
||||
echo $content;
|
||||
}
|
||||
|
||||
return ob_get_clean();
|
||||
}
|
||||
|
||||
/**
|
||||
* Sends all headers prior to returning the string
|
||||
*
|
||||
* @param boolean $compress If true, compress the data
|
||||
*
|
||||
* @return string
|
||||
*
|
||||
* @since 11.1
|
||||
*/
|
||||
public static function toString($compress = false)
|
||||
{
|
||||
$data = self::getBody();
|
||||
|
||||
// Don't compress something if the server is going to do it anyway. Waste of time.
|
||||
if ($compress && !ini_get('zlib.output_compression') && ini_get('output_handler') != 'ob_gzhandler')
|
||||
{
|
||||
$data = self::compress($data);
|
||||
}
|
||||
|
||||
if (self::allowCache() === false)
|
||||
{
|
||||
self::setHeader('Cache-Control', 'no-cache', false);
|
||||
|
||||
// HTTP 1.0
|
||||
self::setHeader('Pragma', 'no-cache');
|
||||
}
|
||||
|
||||
self::sendHeaders();
|
||||
|
||||
return $data;
|
||||
}
|
||||
|
||||
/**
|
||||
* Compress the data
|
||||
*
|
||||
* Checks the accept encoding of the browser and compresses the data before
|
||||
* sending it to the client.
|
||||
*
|
||||
* @param string $data Content to compress for output.
|
||||
*
|
||||
* @return string compressed data
|
||||
*
|
||||
* @note Replaces _compress method in 11.1
|
||||
* @since 11.1
|
||||
*/
|
||||
protected static function compress($data)
|
||||
{
|
||||
$encoding = self::clientEncoding();
|
||||
|
||||
if (!$encoding)
|
||||
{
|
||||
return $data;
|
||||
}
|
||||
|
||||
if (!extension_loaded('zlib') || ini_get('zlib.output_compression'))
|
||||
{
|
||||
return $data;
|
||||
}
|
||||
|
||||
if (headers_sent())
|
||||
{
|
||||
return $data;
|
||||
}
|
||||
|
||||
if (connection_status() !== 0)
|
||||
{
|
||||
return $data;
|
||||
}
|
||||
|
||||
// Ideal level
|
||||
$level = 4;
|
||||
|
||||
/*
|
||||
$size = strlen($data);
|
||||
$crc = crc32($data);
|
||||
|
||||
$gzdata = "\x1f\x8b\x08\x00\x00\x00\x00\x00";
|
||||
$gzdata .= gzcompress($data, $level);
|
||||
|
||||
$gzdata = substr($gzdata, 0, strlen($gzdata) - 4);
|
||||
$gzdata .= pack("V",$crc) . pack("V", $size);
|
||||
*/
|
||||
|
||||
$gzdata = gzencode($data, $level);
|
||||
|
||||
self::setHeader('Content-Encoding', $encoding);
|
||||
|
||||
// Header will be removed at 4.0
|
||||
if (JFactory::getConfig()->get('MetaVersion', 0) && defined('JVERSION'))
|
||||
{
|
||||
self::setHeader('X-Content-Encoded-By', 'Joomla! ' . JVERSION);
|
||||
}
|
||||
|
||||
return $gzdata;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check, whether client supports compressed data
|
||||
*
|
||||
* @return boolean
|
||||
*
|
||||
* @since 11.1
|
||||
* @note Replaces _clientEncoding method from 11.1
|
||||
*/
|
||||
protected static function clientEncoding()
|
||||
{
|
||||
if (!isset($_SERVER['HTTP_ACCEPT_ENCODING']))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
$encoding = false;
|
||||
|
||||
if (false !== strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip'))
|
||||
{
|
||||
$encoding = 'gzip';
|
||||
}
|
||||
|
||||
if (false !== strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'x-gzip'))
|
||||
{
|
||||
$encoding = 'x-gzip';
|
||||
}
|
||||
|
||||
return $encoding;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user