HummingBirdAnimeClient/public/css.php

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<?php
/**
2015-11-16 11:40:01 -05:00
* Hummingbird Anime Client
*
2015-11-16 11:40:01 -05:00
* An API client for Hummingbird to manage anime and manga watch lists
*
* @package HummingbirdAnimeClient
* @author Timothy J. Warren
* @copyright Copyright (c) 2015 - 2016
* @link https://github.com/timw4mail/HummingBirdAnimeClient
* @license MIT
*/
namespace Aviat\EasyMin;
/**
* Simple CSS Minifier
*/
class CSSMin {
protected $css_root;
protected $path_from;
protected $path_to;
protected $group;
protected $last_modified;
public function __construct(array $config, array $groups)
{
$group = $_GET['g'];
$this->css_root = $config['css_root'];
$this->path_from = $config['path_from'];
$this->path_to = $config['path_to'];
$this->group = $groups[$group];
$this->last_modified = $this->get_last_modified();
$this->send();
}
/**
* Send the CSS
*
* @return void
*/
protected function send()
{
$requested_time=(isset($_SERVER['HTTP_IF_MODIFIED_SINCE']))
? strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE'])
: 0;
// Send 304 when not modified for faster response
if($this->last_modified === $requested_time)
{
header("HTTP/1.1 304 Not Modified");
exit();
}
$css = ( ! array_key_exists('debug', $_GET))
? $this->compress($this->get_css())
: $this->get_css();
$this->output($css);
}
/**
* Function for compressing the CSS as tightly as possible
*
* @param string $buffer
* @return string
*/
public function compress($buffer)
{
//Remove CSS comments
$buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $buffer);
//Remove tabs, spaces, newlines, etc.
$buffer = preg_replace('`\s+`', ' ', $buffer);
$replace = array(
' )' => ')',
') ' => ')',
' }' => '}',
'} ' => '}',
' {' => '{',
'{ ' => '{',
', ' => ',',
': ' => ':',
'; ' => ';',
);
//Eradicate every last space!
$buffer = trim(strtr($buffer, $replace));
$buffer = str_replace('{ ', '{', $buffer);
$buffer = str_replace('} ', '}', $buffer);
return $buffer;
}
/**
* Get the most recent file modification date
*
* @return int
*/
protected function get_last_modified()
{
$modified = array();
// Get all the css files, and concatenate them together
if(isset($this->group))
{
foreach($this->group as $file)
{
$new_file = realpath("{$this->css_root}{$file}");
$modified[] = filemtime($new_file);
}
}
//Add this page for last modified check
$modified[] = filemtime(__FILE__);
//Get the latest modified date
rsort($modified);
$last_modified = $modified[0];
return $last_modified;
}
/**
* Get the css to display
*
* @return string
*/
protected function get_css()
{
$css = '';
if(isset($this->group))
{
foreach($this->group as $file)
{
$new_file = realpath("{$this->css_root}{$file}");
$css .= file_get_contents($new_file);
}
}
// Correct paths that have changed due to concatenation
// based on rules in the config file
$css = str_replace($this->path_from, $this->path_to, $css);
return $css;
}
/**
* Output the CSS
*
* @return void
*/
public function output($css)
{
//This GZIPs the CSS for transmission to the user
//making file size smaller and transfer rate quicker
ob_start("ob_gzhandler");
header("Content-Type: text/css; charset=utf8");
header("Cache-control: public, max-age=691200, must-revalidate");
header("Last-Modified: ".gmdate('D, d M Y H:i:s', $this->last_modified)." GMT");
header("Expires: ".gmdate('D, d M Y H:i:s', (filemtime(basename(__FILE__)) + 691200))." GMT");
echo $css;
ob_end_flush();
}
}
// --------------------------------------------------------------------------
// ! Start Minifying
// --------------------------------------------------------------------------
//Get config files
$config = require('../app/config/minify_config.php');
$groups = require($config['css_groups_file']);
new CSSMin($config, $groups);
//End of css.php