autoptimize / classes / autoptimizeHTML.php

autoptimizeHTML.php in Autoptimize 3.1.12, at classes/autoptimizeHTML.php

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1	<?php
2	/**
3	* Handles minifying HTML markup.
4	*/
5
6	if ( ! defined( 'ABSPATH' ) ) {
7	exit;
8	}
9
10	class autoptimizeHTML extends autoptimizeBase
11	{
12	/**
13	* Whether HTML comments are kept.
14	*
15	* @var bool
16	*/
17	private $keepcomments = false;
18
19	/**
20	* Whether inline CSS/ JS is minified.
21	*
22	* @var bool
23	*/
24	private $minify_inline = false;
25
26	/**
27	* Whether to force xhtml compatibility.
28	*
29	* @var bool
30	*/
31	private $forcexhtml = false;
32
33	/**
34	* Things to exclude from being minifed.
35	*
36	* @var array
37	*/
38	private $exclude = array(
39	'<!-- ngg_resource_manager_marker -->',
40	'<!--noindex-->',
41	'<!--/noindex-->',
42	);
43
44	public function read( $options )
45	{
46	// Remove the HTML comments?
47	$this->keepcomments = (bool) $options['keepcomments'];
48
49	// Filter to force xhtml.
50	$this->forcexhtml = (bool) apply_filters( 'autoptimize_filter_html_forcexhtml', false );
51
52	// minify inline JS/ CSS.
53	$this->minify_inline = (bool) apply_filters( 'autoptimize_html_minify_inline_js_css', $options['minify_inline'] );
54
55	// Filterable strings to be excluded from HTML minification.
56	$exclude = apply_filters( 'autoptimize_filter_html_exclude', '' );
57	if ( '' !== $exclude ) {
58	$exclude_arr = array_filter( array_map( 'trim', explode( ',', $exclude ) ) );
59	$this->exclude = array_merge( $exclude_arr, $this->exclude );
60	}
61
62	// Nothing else for HTML!
63	return true;
64	}
65
66	/**
67	* Minifies HTML.
68	*
69	* @return bool
70	*/
71	public function minify()
72	{
73	$noptimize = apply_filters( 'autoptimize_filter_html_noptimize', false, $this->content );
74	if ( $noptimize ) {
75	return false;
76	}
77
78	// Wrap the to-be-excluded strings in noptimize tags.
79	foreach ( $this->exclude as $str ) {
80	if ( false !== strpos( $this->content, $str ) ) {
81	$replacement = '<!--noptimize-->' . $str . '<!--/noptimize-->';
82	$this->content = str_replace( $str, $replacement, $this->content );
83	}
84	}
85
86	// Noptimize.
87	$this->content = $this->hide_noptimize( $this->content );
88
89	// Preparing options for Minify_HTML.
90	$options = array( 'keepComments' => $this->keepcomments );
91	if ( $this->forcexhtml ) {
92	$options['xhtml'] = true;
93	}
94
95	// Optionally minify inline JS & CSS.
96	if ( $this->minify_inline ) {
97	if ( false != autoptimizeOptionWrapper::get_option( 'autoptimize_js' ) && false != autoptimizeConfig::get_post_meta_ao_settings( 'ao_post_js_optimize' ) && true !== apply_filters( 'autoptimize_filter_js_noptimize', false, $this->content ) && false === strpos( $this->content, 'text/template' ) ) {
98	$options['jsMinifier'] = 'JSMin::minify';
99	}
100	if ( false != autoptimizeOptionWrapper::get_option( 'autoptimize_css' ) && false != autoptimizeConfig::get_post_meta_ao_settings( 'ao_post_css_optimize' ) && true !== apply_filters( 'autoptimize_filter_css_noptimize', false, $this->content ) ) {
101	$options['cssMinifier'] = 'autoptimizeCSSmin::minify';
102	}
103	}
104
105	$tmp_content = AO_Minify_HTML::minify( $this->content, $options );
106	if ( ! empty( $tmp_content ) ) {
107	$this->content = $tmp_content;
108	unset( $tmp_content );
109	}
110
111	// Restore noptimize.
112	$this->content = $this->restore_noptimize( $this->content );
113
114	// Remove the noptimize-wrapper from around the excluded strings.
115	foreach ( $this->exclude as $str ) {
116	$replacement = '<!--noptimize-->' . $str . '<!--/noptimize-->';
117	if ( false !== strpos( $this->content, $replacement ) ) {
118	$this->content = str_replace( $replacement, $str, $this->content );
119	}
120	}
121
122	// Revslider data attribs somehow suffer from HTML optimization, this fixes that!
123	if ( class_exists( 'RevSlider' ) && apply_filters( 'autoptimize_filter_html_dataattrib_cleanup', false ) ) {
124	$this->content = preg_replace( '#\n(data-.*$)\n#Um', ' $1 ', $this->content );
125	$this->content = preg_replace( '#<[^>](=\"[^"\'<>\s]\")(\w)#', '$1 $2', $this->content );
126	}
127
128	return true;
129	}
130
131	/**
132	* Doesn't do much in case of HTML (no cache in css/js sense there)
133	*
134	* @return true
135	*/
136	public function cache()
137	{
138	return true;
139	}
140
141	/**
142	* Returns the HTML markup.
143	*
144	* @return string
145	*/
146	public function getcontent()
147	{
148	return $this->content;
149	}
150	}
151