180 lines
3.7 KiB
PHP
180 lines
3.7 KiB
PHP
<?php declare(strict_types=1);
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/**
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* Hummingbird Anime Client
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*
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* An API client for Hummingbird to manage anime and manga watch lists
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*
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* PHP version 7
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*
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* @package HummingbirdAnimeClient
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* @author Timothy J. Warren <tim@timshomepage.net>
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* @copyright 2015 - 2016 Timothy J. Warren
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* @license http://www.opensource.org/licenses/mit-license.html MIT License
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* @version 3.1
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* @link https://github.com/timw4mail/HummingBirdAnimeClient
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*/
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namespace Aviat\EasyMin;
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require_once('./min.php');
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/**
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* Simple CSS Minifier
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*/
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class CSSMin extends BaseMin {
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protected $css_root;
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protected $path_from;
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protected $path_to;
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protected $group;
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protected $last_modified;
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protected $requested_time;
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public function __construct(array $config, array $groups)
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{
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$group = $_GET['g'];
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$this->css_root = $config['css_root'];
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$this->path_from = $config['path_from'];
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$this->path_to = $config['path_to'];
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$this->group = $groups[$group];
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$this->last_modified = $this->get_last_modified();
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$this->send();
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}
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/**
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* Send the CSS
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*
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* @return void
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*/
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protected function send()
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{
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if($this->last_modified >= $this->get_if_modified() && $this->is_not_debug())
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{
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throw new FileNotChangedException();
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}
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$css = ( ! array_key_exists('debug', $_GET))
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? $this->compress($this->get_css())
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: $this->get_css();
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$this->output($css);
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}
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/**
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* Function for compressing the CSS as tightly as possible
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*
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* @param string $buffer
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* @return string
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*/
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protected function compress($buffer)
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{
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//Remove CSS comments
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$buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $buffer);
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//Remove tabs, spaces, newlines, etc.
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$buffer = preg_replace('`\s+`', ' ', $buffer);
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$replace = array(
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' )' => ')',
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') ' => ')',
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' }' => '}',
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'} ' => '}',
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' {' => '{',
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'{ ' => '{',
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', ' => ',',
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': ' => ':',
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'; ' => ';',
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);
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//Eradicate every last space!
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$buffer = trim(strtr($buffer, $replace));
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$buffer = str_replace('{ ', '{', $buffer);
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$buffer = str_replace('} ', '}', $buffer);
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return $buffer;
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}
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/**
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* Get the most recent file modification date
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*
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* @return int
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*/
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protected function get_last_modified()
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{
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$modified = array();
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// Get all the css files, and concatenate them together
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if(isset($this->group))
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{
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foreach($this->group as $file)
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{
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$new_file = realpath("{$this->css_root}{$file}");
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$modified[] = filemtime($new_file);
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}
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}
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//Add this page for last modified check
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$modified[] = filemtime(__FILE__);
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//Get the latest modified date
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rsort($modified);
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return array_shift($modified);
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}
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/**
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* Get the css to display
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*
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* @return string
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*/
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protected function get_css()
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{
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$css = '';
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foreach($this->group as $file)
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{
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$new_file = realpath("{$this->css_root}{$file}");
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$css .= file_get_contents($new_file);
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}
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// Correct paths that have changed due to concatenation
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// based on rules in the config file
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$css = str_replace($this->path_from, $this->path_to, $css);
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return $css;
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}
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/**
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* Output the CSS
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*
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* @return void
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*/
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protected function output($css)
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{
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$this->send_final_output($css, 'text/css', $this->last_modified);
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}
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}
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// --------------------------------------------------------------------------
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// ! Start Minifying
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// --------------------------------------------------------------------------
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//Get config files
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$config = require('../app/appConf/minify_config.php');
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$groups = require($config['css_groups_file']);
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if ( ! array_key_exists($_GET['g'], $groups))
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{
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throw new InvalidArgumentException('You must specify a css group that exists');
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}
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try
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{
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new CSSMin($config, $groups);
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}
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catch (FileNotChangedException $e)
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{
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BaseMin::send304();
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}
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//End of css.php
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