HummingBirdAnimeClient/public/css.php

137 lines
3.2 KiB
PHP

<?php
/**
* Hummingbird Anime Client
*
* 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
*/
// --------------------------------------------------------------------------
//Get config files
require('../app/config/minify_config.php');
//Include the css groups
$groups = require("../app/config/minify_css_groups.php");
//Function for compressing the CSS as tightly as possible
/**
* @param string $buffer
*/
function compress($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;
}
function get_last_modifed()
{
global $groups, $css_root;
$modified = array();
// Get all the css files, and concatenate them together
if(isset($groups[$_GET['g']]))
{
foreach($groups[$_GET['g']] as $file)
{
$new_file = realpath($css_root.$file);
$modified[] = filemtime($new_file);
}
}
//Add myth css file for last modified check
$modified[] = filemtime(realpath("css/base.myth.css"));
//Add this page for last modified check
$modified[] = filemtime(__FILE__);
//Get the latest modified date
rsort($modified);
$last_modified = $modified[0];
return $last_modified;
}
function get_css()
{
global $groups, $path_from, $path_to, $css_root;
$css = '';
if(isset($groups[$_GET['g']]))
{
foreach($groups[$_GET['g']] as $file)
{
$new_file = realpath($css_root.$file);
$css .= file_get_contents($new_file);
$modified[] = filemtime($new_file);
}
}
// If not in debug mode, minify the css
if( ! isset($_GET['debug']))
{
$css = compress($css);
}
// Correct paths that have changed due to concatenation
// based on rules in the config file
$css = strtr($css, $path_from, $path_to);
return $css;
}
// --------------------------------------------------------------------------
$last_modified = get_last_modifed();
$requested_time=(isset($_SERVER['HTTP_IF_MODIFIED_SINCE']))
? strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE'])
: 0;
// Send 304 when not modified for faster response
if($last_modified === $requested_time)
{
header("HTTP/1.1 304 Not Modified");
exit();
}
//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', $last_modified)." GMT");
header("Expires: ".gmdate('D, d M Y H:i:s', (filemtime(basename(__FILE__)) + 691200))." GMT");
echo get_css();
ob_end_flush();
//End of css.php