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<?php
/**
* Autoptimize SpeedUp; minify & cache each JS/ CSS separately
* new in Autoptimize 2.2
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
class autoptimizeSpeedupper
{
public function __construct()
{
$this->add_hooks();
}
public function add_hooks()
{
if ( apply_filters( 'autoptimize_js_do_minify', true ) ) {
add_filter( 'autoptimize_js_individual_script', array( $this, 'js_snippetcacher' ), 10, 2 );
add_filter( 'autoptimize_js_after_minify', array( $this, 'js_cleanup' ), 10, 1 );
}
if ( apply_filters( 'autoptimize_css_do_minify', true ) ) {
add_filter( 'autoptimize_css_individual_style', array( $this, 'css_snippetcacher' ), 10, 2 );
add_filter( 'autoptimize_css_after_minify', array( $this, 'css_cleanup' ), 10, 1 );
}
}
public function js_snippetcacher( $jsin, $jsfilename )
{
$md5hash = 'snippet_' . md5( $jsin );
$ccheck = new autoptimizeCache( $md5hash, 'js' );
if ( $ccheck->check() ) {
$scriptsrc = $ccheck->retrieve();
} else {
if ( false === ( strpos( $jsfilename, 'min.js' ) ) && ( false === strpos( $jsfilename, 'js/jquery/jquery.js' ) ) && ( str_replace( apply_filters( 'autoptimize_filter_js_consider_minified', false ), '', $jsfilename ) === $jsfilename ) ) {
$tmp_jscode = trim( JSMin::minify( $jsin ) );
if ( ! empty( $tmp_jscode ) ) {
$scriptsrc = $tmp_jscode;
unset( $tmp_jscode );
} else {
$scriptsrc = $jsin;
}
} else {
// Removing comments, linebreaks and stuff!
$scriptsrc = preg_replace( '#^\s*\/\/.*$#Um', '', $jsin );
$scriptsrc = preg_replace( '#^\s*\/\*[^!].*\*\/\s?#Us', '', $scriptsrc );
$scriptsrc = preg_replace( "#(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+#", "\n", $scriptsrc );
}
$last_char = substr( $scriptsrc, -1, 1 );
if ( ';' !== $last_char && '}' !== $last_char ) {
$scriptsrc .= ';';
}
if ( ! empty( $jsfilename ) && str_replace( apply_filters( 'autoptimize_filter_js_speedup_cache', false ), '', $jsfilename ) === $jsfilename ) {
// Don't cache inline CSS or if filter says no!
$ccheck->cache( $scriptsrc, 'text/javascript' );
}
}
unset( $ccheck );
return $scriptsrc;
}
public function css_snippetcacher( $cssin, $cssfilename )
{
$md5hash = 'snippet_' . md5( $cssin );
$ccheck = new autoptimizeCache( $md5hash, 'css' );
if ( $ccheck->check() ) {
$stylesrc = $ccheck->retrieve();
} else {
if ( ( false === strpos( $cssfilename, 'min.css' ) ) && ( str_replace( apply_filters( 'autoptimize_filter_css_consider_minified', false ), '', $cssfilename ) === $cssfilename ) ) {
$cssmin = new autoptimizeCSSmin();
$tmp_code = trim( $cssmin->run( $cssin ) );
if ( ! empty( $tmp_code ) ) {
$stylesrc = $tmp_code;
unset( $tmp_code );
} else {
$stylesrc = $cssin;
}
} else {
// .min.css -> no heavy-lifting, just some cleanup!
$stylesrc = preg_replace( '#^\s*\/\*[^!].*\*\/\s?#Us', '', $cssin );
$stylesrc = preg_replace( "#(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+#", "\n", $stylesrc );
$stylesrc = autoptimizeStyles::fixurls( $cssfilename, $stylesrc );
}
if ( ! empty( $cssfilename ) && ( str_replace( apply_filters( 'autoptimize_filter_css_speedup_cache', false ), '', $cssfilename ) === $cssfilename ) ) {
// Only caching CSS if it's not inline and is allowed by filter!
$ccheck->cache( $stylesrc, 'text/css' );
}
}
unset( $ccheck );
return $stylesrc;
}
public function css_cleanup( $cssin )
{
// Speedupper results in aggregated CSS not being minified, so the filestart-marker AO adds when aggregating needs to be removed.
return trim( str_replace( array( '/*FILESTART*/', '/*FILESTART2*/' ), '', $cssin ) );
}
public function js_cleanup( $jsin )
{
return trim( $jsin );
}
}
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