HummingBirdAnimeClient/public/css.php

180 lines
3.7 KiB
PHP

<?php declare(strict_types=1);
/**
* Hummingbird Anime List Client
*
* An API client for Kitsu and MyAnimeList to manage anime and manga watch lists
*
* PHP version 7
*
* @package HummingbirdAnimeClient
* @author Timothy J. Warren <tim@timshomepage.net>
* @copyright 2015 - 2017 Timothy J. Warren
* @license http://www.opensource.org/licenses/mit-license.html MIT License
* @version 4.0
* @link https://github.com/timw4mail/HummingBirdAnimeClient
*/
namespace Aviat\EasyMin;
require_once('./min.php');
/**
* Simple CSS Minifier
*/
class CSSMin extends BaseMin {
protected $cssRoot;
protected $pathFrom;
protected $pathTo;
protected $group;
protected $lastModified;
protected $requestedTime;
public function __construct(array $config, array $groups)
{
$group = $_GET['g'];
$this->cssRoot = $config['css_root'];
$this->pathFrom = $config['path_from'];
$this->pathTo = $config['path_to'];
$this->group = $groups[$group];
$this->lastModified = $this->getLastModified();
$this->send();
}
/**
* Send the CSS
*
* @return void
*/
protected function send()
{
if($this->lastModified >= $this->getIfModified() && $this->isNotDebug())
{
throw new FileNotChangedException();
}
$css = ( ! array_key_exists('debug', $_GET))
? $this->compress($this->getCss())
: $this->getCss();
$this->output($css);
}
/**
* Function for compressing the CSS as tightly as possible
*
* @param string $buffer
* @return string
*/
protected function compress($buffer)
{
//Remove CSS comments
$buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $buffer);
//Remove tabs, spaces, newlines, etc.
$buffer = preg_replace('`\s+`', ' ', $buffer);
$replace = [
' )' => ')',
') ' => ')',
' }' => '}',
'} ' => '}',
' {' => '{',
'{ ' => '{',
', ' => ',',
': ' => ':',
'; ' => ';',
];
//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 getLastModified()
{
$modified = [];
// Get all the css files, and concatenate them together
if(isset($this->group))
{
foreach($this->group as $file)
{
$newFile = realpath("{$this->cssRoot}{$file}");
$modified[] = filemtime($newFile);
}
}
//Add this page for last modified check
$modified[] = filemtime(__FILE__);
//Get the latest modified date
rsort($modified);
return array_shift($modified);
}
/**
* Get the css to display
*
* @return string
*/
protected function getCss()
{
$css = '';
foreach($this->group as $file)
{
$newFile = realpath("{$this->cssRoot}{$file}");
$css .= file_get_contents($newFile);
}
// Correct paths that have changed due to concatenation
// based on rules in the config file
$css = str_replace($this->pathFrom, $this->pathTo, $css);
return $css;
}
/**
* Output the CSS
*
* @return void
*/
protected function output($css)
{
$this->sendFinalOutput($css, 'text/css', $this->lastModified);
}
}
// --------------------------------------------------------------------------
// ! Start Minifying
// --------------------------------------------------------------------------
//Get config files
$config = require('../app/appConf/minify_config.php');
$groups = require($config['css_groups_file']);
if ( ! array_key_exists($_GET['g'], $groups))
{
throw new InvalidArgumentException('You must specify a css group that exists');
}
try
{
new CSSMin($config, $groups);
}
catch (FileNotChangedException $e)
{
BaseMin::send304();
}
//End of css.php