117 lines
2.5 KiB
PHP
117 lines
2.5 KiB
PHP
<?php
|
|
/**
|
|
* Easy Min
|
|
*
|
|
* Simple minification for better website performance
|
|
*
|
|
* @author Timothy J. Warren
|
|
* @copyright Copyright (c) 2012-2016
|
|
* @link https://git.timshomepage.net/aviat4ion/Easy-Min
|
|
* @license http://philsturgeon.co.uk/code/dbad-license
|
|
*/
|
|
|
|
// --------------------------------------------------------------------------
|
|
namespace Aviat\EasyMin;
|
|
|
|
//Creative rewriting of /g/groupname to ?g=groupname
|
|
$pi = $_SERVER['PATH_INFO'];
|
|
$pia = explode('/', $pi);
|
|
|
|
$pia_len = count($pia);
|
|
$i = 1;
|
|
|
|
while($i < $pia_len)
|
|
{
|
|
$j = $i+1;
|
|
$j = (isset($pia[$j])) ? $j : $i;
|
|
|
|
$_GET[$pia[$i]] = $pia[$j];
|
|
|
|
$i = $j + 1;
|
|
};
|
|
|
|
class FileNotChangedException extends \Exception {}
|
|
class BaseMin {
|
|
|
|
/**
|
|
* Get value of the if-modified-since header
|
|
*
|
|
* @return int - timestamp to compare for cache control
|
|
*/
|
|
protected function get_if_modified()
|
|
{
|
|
return (array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER))
|
|
? strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE'])
|
|
: time();
|
|
}
|
|
|
|
/**
|
|
* Get value of etag to compare to hash of output
|
|
*
|
|
* @return string - the etag to compare
|
|
*/
|
|
protected function get_if_none_match()
|
|
{
|
|
return (array_key_exists('HTTP_IF_NONE_MATCH', $_SERVER))
|
|
? $_SERVER['HTTP_IF_NONE_MATCH']
|
|
: '';
|
|
}
|
|
|
|
/**
|
|
* Determine whether or not to send debug version
|
|
*
|
|
* @return boolean
|
|
*/
|
|
protected function is_not_debug()
|
|
{
|
|
return ! $this->is_debug_call();
|
|
}
|
|
|
|
/**
|
|
* Determine whether or not to send debug version
|
|
*
|
|
* @return boolean
|
|
*/
|
|
protected function is_debug_call()
|
|
{
|
|
return array_key_exists('debug', $_GET);
|
|
}
|
|
|
|
/**
|
|
* Send actual output to browser
|
|
*
|
|
* @param string $content - the body of the response
|
|
* @param string $mime_type - the content type
|
|
* @param int $last_modified - the last modified date
|
|
* @return void
|
|
*/
|
|
protected function send_final_output($content, $mime_type, $last_modified)
|
|
{
|
|
//This GZIPs the CSS for transmission to the user
|
|
//making file size smaller and transfer rate quicker
|
|
ob_start("ob_gzhandler");
|
|
|
|
$expires = $last_modified + 691200;
|
|
$last_modified_date = gmdate('D, d M Y H:i:s', $last_modified);
|
|
$expires_date = gmdate('D, d M Y H:i:s', $expires);
|
|
|
|
header("Content-Type: {$mime_type}; charset=utf8");
|
|
header("Cache-control: public, max-age=691200, must-revalidate");
|
|
header("Last-Modified: {$last_modified_date} GMT");
|
|
header("Expires: {$expires_date} GMT");
|
|
|
|
echo $content;
|
|
|
|
ob_end_flush();
|
|
}
|
|
|
|
/**
|
|
* Send a 304 Not Modified header
|
|
*
|
|
* @return void
|
|
*/
|
|
public static function send304()
|
|
{
|
|
header("status: 304 Not Modified", true, 304);
|
|
}
|
|
} |