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<?php
/**
* Class and Function List:
* Function list:
* - __construct()
* - css()
* - fonts()
* - images()
* - js()
* - _expires_header()
* Classes list:
* - Theme_assets extends CI_Controller
*/
class Theme_assets extends CI_Controller
{
function __construct()
{
parent::__construct();
$this->theme = config_item('theme');
}
function css()
{
$css_file = $this->uri->segment(4);
$css_file = basename($css_file); // Fix LFI Vulnerability
if ($css_file == 'fonts')
{
$font_file = $this->uri->segment(5);
$font_file = basename($font_file);
//file path
$file_path = 'themes/' . $this->theme . '/css/fonts/' . $font_file;
if (!file_exists($file_path))
{
return false;
}
$path_parts = pathinfo(dirname(dirname(dirname(__FILE__))) . '/' . $file_path);
if ($path_parts['extension'] == "woff")
{
header('Content-type: application/font-woff');
}
if ($path_parts['extension'] == "eot")
{
header('Content-type: application/vnd.ms-fontobject');
}
if ($path_parts['extension'] == "ttf" || $path_parts['extension'] == "ttc")
{
header('Content-type: application/x-font-ttf');
}
if ($path_parts['extension'] == "otf")
{
header('Content-type: font/opentype');
}
if ($path_parts['extension'] == "svg")
{
header('Content-type: image/svg+xml');
}
if ($path_parts['extension'] == "svgz")
{
header("Content-Encoding: gzip");
header('Content-type: image/svg+xml');
}
//send
$this->_expires_header(1);
readfile($file_path);
}
else
{
//file path
$file_path = 'themes/' . $this->theme . '/css/' . $css_file;
//fallback to default css if view in theme not found
if (!file_exists($file_path))
{
$file_path = 'themes/default/css/' . $css_file;
}
// Double checking file
if (!file_exists($file_path))
{
return false;
}
//send
header('Content-type: text/css');
$this->_expires_header(1);
readfile($file_path);
}
}
function fonts()
{
$font_file = $this->uri->segment(4);
//file path
$file_path = 'themes/' . $this->theme . '/fonts/' . $font_file;
//no fallback to default, since default has no such fonts
//since no fallbcack, there is no doucle checking for file
if (!file_exists($file_path))
{
return false;
}
//send
$path_parts = pathinfo(dirname(dirname(dirname(__FILE__))) . '/' . $file_path);
if ($path_parts['extension'] == "woff")
{
header('Content-type: application/font-woff');
}
if ($path_parts['extension'] == "eot")
{
header('Content-type: application/vnd.ms-fontobject');
}
if ($path_parts['extension'] == "ttf" || $path_parts['extension'] == "ttc")
{
header('Content-type: application/x-font-ttf');
}
if ($path_parts['extension'] == "otf")
{
header('Content-type: font/opentype');
}
if ($path_parts['extension'] == "svg")
{
header('Content-type: image/svg+xml');
}
if ($path_parts['extension'] == "svgz")
{
header("Content-Encoding: gzip");
header('Content-type: image/svg+xml');
}
$this->_expires_header(1);
readfile($file_path);
}
function images()
{
$image_file = $this->uri->segment(4);
$image_file = basename($image_file);
//file path
$file_path = 'themes/' . $this->theme . '/images/' . $image_file;
//fallback to default css if view in theme not found
if (!file_exists($file_path))
{
$file_path = 'themes/default/images/' . $image_file;
}
// double checking file
if (!file_exists($file_path))
{
return false;
}
//send
$size = getimagesize($file_path);
header('Content-type: ' . $size['mime']);
$this->_expires_header(30);
readfile($file_path);
}
function js()
{
//get js
$segments = $this->uri->segment_array();
array_shift($segments);
array_shift($segments);
array_shift($segments);
$js_file = implode('/', $segments);
$js_file = str_replace('../', '', $js_file);
//file path
$file_path = 'themes/' . $this->theme . '/js/' . $js_file;
//fallback to default js if js in theme not found
if (!file_exists($file_path))
{
$file_path = 'themes/default/js/' . $js_file;
}
// return empty string if not found, to not mess up existing JS
if (!file_exists($file_path))
{
header('HTTP/1.1 404 Not Found');
return '';
}
//send
header('Content-Type: application/x-javascript; charset=utf-8');
$this->_expires_header(30);
readfile($file_path);
}
private
function _expires_header($days)
{
header('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', time() + 60 * 60 * 24 * $days));
}
}
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