OptimizerMain.php — 10Web Booster – Website speed optimization, Cache & Page Speed optimizer trunk

tenweb-speed-optimizer / includes / OptimizerMain.php

tenweb-speed-optimizer / includes Last commit date

OptimizerMain.php

1243 lines

1	<?php
2
3	namespace TenWebOptimizer;
4
5	use DiDom\Exceptions\InvalidSelectorException;
6	use JSMin\JSMin;
7
8	class OptimizerMain
9	{
10	protected static $instance = null;
11
12	private $is_testing = false;
13
14	private $tenweb_handle;
15
16	private $two_delay_js_execution = false;
17
18	private $two_delay_all_js_execution = false;
19
20	private $two_timeout_js_load = false;
21
22	private $two_delay_js_exclusions = null;
23
24	private $two_exclude_js = '';
25
26	private $two_load_excluded_js_normally = '';
27
28	private $two_exclude_delay_js = [];
29
30	private $two_disabled_delay_all_js_pages = [];
31
32	private $two_exclude_css = '';
33
34	private $two_include_inline_js = '';
35
36	private $two_include_inline_css = '';
37
38	private $two_dequeue_jquery_migrate = '';
39
40	private $current_url = null;
41
42	private $async_all = false;
43
44	private $aggregate_js = false;
45
46	private $aggregate_css = false;
47
48	private $two_do_not_optimize_images = 'off';
49
50	private $two_lazyload = 'off';
51
52	private $two_add_noscript = 'off';
53
54	private $two_bg_lazyload = 'off';
55
56	private $two_enable_use_srcset = 'off';
57
58	private $two_enable_picture_webp_delivery = 'off';
59
60	private $two_video_lazyload = 'off';
61
62	private $two_iframe_lazyload = 'off';
63
64	private $two_delay_iframe_lazyload = 'off';
65
66	private $two_elemrntor_video_iframe = 'off';
67
68	private $two_youtube_vimeo_iframe_lazyload = 'off';
69
70	private $two_gzip = false;
71
72	private $browser_lazy = false;
73
74	private $vanilla_lazy = false;
75
76	/**
77	* @var mixed\|void
78	*/
79	private $two_delayed_js_execution_list;
80
81	/**
82	* @var OptimizerCacheStructure
83	*/
84	private $cacheStructure;
85
86	private $TwoSettings;
87
88	private $use_extended_exception_list_js;
89
90	/**
91	* @var string
92	*/
93	private $two_delayed_js_load_libs_first;
94
95	private $critical;
96
97	private $two_webp_delivery_working = false;
98
99	private $ao_imgopt = null;
100
101	private $elementor_youtube_video = false;
102
103	/**
104	* @var false\|mixed\|string\|null
105	*/
106	public $two_test_mode;
107
108	/**
109	* @var false\|mixed\|string\|null
110	*/
111	public $two_minify_html;
112
113	/**
114	* @var bool
115	*/
116	public $minify_js;
117
118	/**
119	* @var bool
120	*/
121	public $minify_css;
122
123	/**
124	* @var bool
125	*/
126	private $page_has_id = true;
127
128	private function __construct()
129	{
130	@ini_set('pcre.backtrack_limit', 5000000); // phpcs:ignore
131	@ini_set('pcre.recursion_limit', 5000000); // phpcs:ignore
132
133	add_action('elementor/widget/render_content', [$this, 'detect_elementor_video_widget'], 10, 2);
134	add_action('send_headers', [ $this, 'two_headers' ]);
135	do_action('wp_meta');
136	global $TwoSettings;
137	$this->two_webp_delivery_working = $TwoSettings->get_settings('two_webp_delivery_working');
138	// Move the initialization to wp action to have wp query already set as we need to identify the search pages.
139	// Set the priority to the end to avoid conflicts with third party plugins.
140	add_action('wp', [ $this, 'init' ], PHP_INT_MAX - 1);
141	}
142
143	public static function get_instance()
144	{
145	if (null == self::$instance) {
146	self::$instance = new self();
147	}
148
149	return self::$instance;
150	}
151
152	public function init()
153	{
154	OptimizerUtils::download_critical();
155
156	if (!defined('TWO_CACHE_DIR')) {
157	define('TWO_CACHE_DIR', OptimizerCache::get_path());
158	}
159	global $TwoSettings;
160	$this->TwoSettings = $TwoSettings;
161	$lazy_load_type = $this->TwoSettings->get_settings('lazy_load_type');
162	$this->is_testing = $this->TwoSettings->getTestMode();
163
164	if ($lazy_load_type === 'browser') {
165	$this->browser_lazy = true;
166	}
167
168	if ($lazy_load_type === 'vanilla') {
169	$this->vanilla_lazy = true;
170	}
171	$this->two_do_not_optimize_images = $this->TwoSettings->get_settings('two_do_not_optimize_images');
172	$this->two_enable_use_srcset = $this->TwoSettings->get_settings('two_enable_use_srcset');
173	$this->two_enable_picture_webp_delivery = $this->TwoSettings->get_settings('two_enable_picture_webp_delivery');
174	$this->two_lazyload = $this->TwoSettings->get_settings('two_lazyload');
175	$this->two_add_noscript = $this->TwoSettings->get_settings('two_add_noscript');
176	$this->two_bg_lazyload = $this->TwoSettings->get_settings('two_bg_lazyload');
177
178	if ($this->two_bg_lazyload !== 'on') {
179	$this->two_bg_lazyload = $this->TwoSettings->get_settings('two_img_in_viewport_lazyload');
180	}
181	$this->two_video_lazyload = $this->TwoSettings->get_settings('two_video_lazyload');
182	$this->two_iframe_lazyload = $this->TwoSettings->get_settings('two_iframe_lazyload');
183	$this->two_delay_iframe_lazyload = $this->TwoSettings->get_settings('two_delay_iframe_lazyload');
184	$this->two_elemrntor_video_iframe = $this->TwoSettings->get_settings('two_elemrntor_video_iframe');
185	$this->two_youtube_vimeo_iframe_lazyload = $this->TwoSettings->get_settings('two_youtube_vimeo_iframe_lazyload');
186	$this->two_gzip = $this->TwoSettings->get_settings('two_gzip');
187	$this->aggregate_js = empty($this->TwoSettings->get_settings('two_aggregate_js', false)) ? false : true;
188	$this->aggregate_css = empty($this->TwoSettings->get_settings('two_aggregate_css', false)) ? false : true;
189	$this->two_delay_js_execution = empty($this->TwoSettings->get_settings('two_delay_js_execution', false)) ? false : true;
190	$this->two_delay_all_js_execution = empty($this->TwoSettings->get_settings('two_delay_all_js_execution', false)) ? false : true;
191
192	if ($this->two_delay_all_js_execution) {
193	$builder_type = OptimizerUtils::detect_builder_type();
194
195	if ($builder_type === 'wvc') {
196	$this->TwoSettings->update_setting('two_delay_all_js_execution', '', false);
197	$this->two_delay_all_js_execution = false;
198	}
199	}
200	$this->two_timeout_js_load = $this->TwoSettings->get_settings('two_timeout_js_load', false) === 'on';
201	$this->two_delay_js_exclusions = $TwoSettings->get_settings('two_delay_js_exclusions', false);
202	$this->two_test_mode = $this->TwoSettings->get_settings('two_test_mode');
203	$this->two_minify_html = $this->TwoSettings->get_settings('two_minify_html');
204
205	$this->minify_js = empty($this->TwoSettings->get_settings('two_minify_js', false)) ? false : true;
206	$this->minify_css = empty($this->TwoSettings->get_settings('two_minify_css', false)) ? false : true;
207
208	$this->use_extended_exception_list_js = empty($this->TwoSettings->get_settings('two_use_extended_exception_list_js', false)) ? false : true;
209	$two_generate_ccss_on_load = $TwoSettings->get_settings('two_generate_ccss_on_load');
210	$two_generate_ccss_on_load_types = is_array($two_generate_ccss_on_load) ? $two_generate_ccss_on_load : [];
211
212	$this->current_url = OptimizerUtils::get_page_url();
213
214	$dir = OptimizerCache::get_path();
215
216	if (OptimizerUtils::dirsize($dir) > TENWEB_CACHE_ALLOWED_DIR_SIZE_IN_BYTES) { // 1Gb
217	$this->clear_cache(false, false, true, true, 'front_page', false, true, true, true);
218	}
219
220	$this->cacheStructure = OptimizerCacheStructure::init();
221
222	global $post;
223	$post_mode = '';
224
225	if (isset($post) && isset($post->ID)) {
226	$post_mode = get_post_meta($post->ID, 'two_mode', true);
227	}
228	$two_default_mode = get_option('two_default_mode');
229
230	if (TENWEB_SO_HOSTED_ON_10WEB && !is_array($two_default_mode) && !isset($_GET['mode']) && !wp_doing_ajax()) { // phpcs:ignore
231	OptimizerUtils::set_global_mode();
232	}
233
234	$should_serve_optimized_page = $this->should_serve_optimized_page($post_mode);
235
236	if ($should_serve_optimized_page === true) {
237	/Check if user free and not critical page ont optimize /
238	$request_url = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http') . '://' . sanitize_url($_SERVER['HTTP_HOST']) . sanitize_url($_SERVER['REQUEST_URI']); // phpcs:ignore
239	$home_url = rtrim(get_home_url(), '/');
240	$page_url = rtrim($request_url, '/');
241	$critical_page_id = null;
242
243	if ($home_url === $page_url) {
244	$critical_page_id = 'front_page';
245	}
246	$this->critical = new OptimizerCriticalCss($critical_page_id);
247	global $tenweb_subscription_id;
248	$tenweb_subscription_id = (int) $tenweb_subscription_id;
249	$page_id = $this->critical->page_id;
250
251	if (strpos($page_id, 'no_critical') === 0) {
252	$this->page_has_id = false;
253	}
254
255	if (empty($page_id)) {
256	self::add_optimization_status_headers(0, 'Page id not found');
257
258	return;
259	}
260	$page_mode = OptimizerUrl::getPageModeByID($page_id);
261	$id = $page_mode[ 'id' ];
262	$type = $page_mode[ 'type' ];
263	$page_mode = $page_mode[ 'page_mode' ];
264	$post_type = get_post_type($page_id);
265
266	$conditions_for_generating_ccss = false;
267
268	if ((in_array('page', $two_generate_ccss_on_load_types) && $post_type == 'page')
269	\|\| (in_array('post', $two_generate_ccss_on_load_types) && $post_type == 'post')) {
270	$conditions_for_generating_ccss = true;
271	} elseif (in_array('taxonomy', $two_generate_ccss_on_load_types) && str_contains($page_id, 'term_')) {
272	$conditions_for_generating_ccss = true;
273	}
274
275	if (in_array((int) $tenweb_subscription_id, TENWEB_SO_FREE_SUBSCRIPTION_IDS) && $page_id != 'front_page' && !is_array($page_mode)) {
276	if (isset($this->critical->two_critical_pages[$page_id]['status']) && $this->critical->two_critical_pages[$page_id]['status'] != 'success' && $this->critical->two_critical_pages[$page_id]['status'] != 'in_progress') {
277	if ($this->page_has_id) {
278	OptimizerCriticalCss::generate_critical_css_by_id($page_id);
279	}
280	self::add_optimization_status_headers(0, 'Critical id not found');
281
282	return;
283	}
284
285	if (!isset($this->critical->critical_css)) {
286	self::add_optimization_status_headers(0, 'Critical id not found');
287
288	return;
289	}
290	} elseif (TWO_ALWAYS_CRITICAL && !TENWEB_SO_HOSTED_ON_10WEB &&
291	(!isset($this->critical->two_critical_pages) \|\| !isset($this->critical->two_critical_pages[$page_id])
292	\|\| $this->critical->two_critical_pages[$page_id]['status'] === 'not_started')) {
293	if ($page_id === 'front_page' \|\| $conditions_for_generating_ccss) {
294	$two_flow_critical_start = get_option('two_flow_critical_start');
295
296	if ($two_flow_critical_start === '1' && \Tenweb_Authorization\Login::get_instance()->check_logged_in()) {
297	if ($this->page_has_id) {
298	OptimizerCriticalCss::generate_critical_css_by_id($page_id);
299	}
300	}
301	}
302	} elseif (TENWEB_SO_HOSTED_ON_10WEB
303	&& (
304	(!isset($this->critical->two_critical_pages) \|\| !isset($this->critical->two_critical_pages[$page_id]))
305	\|\| ($this->critical->two_critical_pages[$page_id]['status'] != 'success'
306	&& $this->critical->two_critical_pages[$page_id]['status'] != 'in_progress')
307	)
308	&& $conditions_for_generating_ccss) {
309	if ($this->page_has_id) {
310	OptimizerCriticalCss::generate_critical_css_by_id($page_id);
311	}
312	}
313	$date = time();
314
315	if ($page_id === 'front_page') {
316	update_option('two_optimized_date_front_page', $date, false);
317	} elseif ('term_' == $type) {
318	update_term_meta($id, 'two_optimized_date', $date);
319	} elseif ('user_' == $type) {
320	update_user_meta($id, 'two_optimized_date', $date);
321	} else {
322	update_post_meta($page_id, 'two_optimized_date', $date);
323	}
324
325	OptimizerUtils::init_defines();
326	$this->check_cache_dir(OptimizerCache::get_path());
327	$two_delayed_js_execution_list = $this->TwoSettings->get_settings('two_delayed_js_execution_list');
328	$two_exclude_js = $this->TwoSettings->get_settings('two_exclude_js');
329	$two_load_excluded_js_normally = $this->TwoSettings->get_settings('two_load_excluded_js_normally');
330	$two_exclude_delay_js = $this->TwoSettings->get_settings('two_exclude_delay_js');
331	$two_disabled_delay_all_js_pages = $this->TwoSettings->get_settings('two_disabled_delay_all_js_pages');
332	$two_delayed_js_load_libs_first = $this->TwoSettings->get_settings('two_delayed_js_load_libs_first');
333	$two_exclude_css = $this->TwoSettings->get_settings('two_exclude_css');
334	$two_include_inline_js = $this->TwoSettings->get_settings('two_include_inline_js');
335	$two_include_inline_css = $this->TwoSettings->get_settings('two_include_inline_css');
336	$two_dequeue_jquery_migrate = $this->TwoSettings->get_settings('two_dequeue_jquery_migrate');
337	$async_all = $this->TwoSettings->get_settings('two_async_all');
338	$two_disable_wp_dashicons = $this->TwoSettings->get_settings('two_disable_wp_dashicons');
339
340	if ($two_delayed_js_execution_list != false) {
341	$this->two_delayed_js_execution_list = $two_delayed_js_execution_list;
342	}
343
344	if ($two_exclude_js != false) {
345	$this->two_exclude_js = $two_exclude_js;
346	}
347
348	if ($two_load_excluded_js_normally != false) {
349	$this->two_load_excluded_js_normally = $two_load_excluded_js_normally;
350	}
351
352	if (!empty($two_exclude_delay_js)) {
353	$this->two_exclude_delay_js = explode(',', $two_exclude_delay_js);
354	}
355
356	if (!empty($two_disabled_delay_all_js_pages)) {
357	$this->two_disabled_delay_all_js_pages = $two_disabled_delay_all_js_pages;
358	$two_disabled_delay_all_js_pages_arr = array_filter(
359	array_map('trim', explode(',', $this->two_disabled_delay_all_js_pages))
360	);
361
362	foreach ($two_disabled_delay_all_js_pages_arr as $optimizerDisabledPage) {
363	if (preg_match('~' . $optimizerDisabledPage . '~', $_SERVER['REQUEST_URI'])) { // phpcs:ignore
364	$this->two_delay_all_js_execution = false;
365	}
366	}
367	}
368
369	if ($two_exclude_css != false) {
370	$this->two_exclude_css = $two_exclude_css;
371	}
372
373	if ($async_all === 'on') {
374	$this->async_all = true;
375	}
376
377	if ($two_include_inline_js != false) {
378	$this->two_include_inline_js = 'on';
379	}
380
381	if ($two_include_inline_css != false) {
382	$this->two_include_inline_css = 'on';
383	}
384
385	if ($two_delayed_js_load_libs_first != false) {
386	$this->two_delayed_js_load_libs_first = 'on';
387	}
388
389	if ($two_dequeue_jquery_migrate != false) {
390	$this->two_dequeue_jquery_migrate = 'on';
391	}
392
393	$this->check_and_create_dirs();
394
395	// Fix Elementor slideshow background before delayed js are loaded.
396	add_action('elementor/frontend/before_render', function ($element) {
397	if ('slideshow' == $element->get_settings('background_background')) {
398	if (!empty($element->get_settings('background_slideshow_gallery')[0]['url'])) {
399	$element->add_render_attribute(
400	'_wrapper',
401	[
402	'style' => 'background: url("' . $element->get_settings('background_slideshow_gallery')[ 0 ][ 'url' ] . '") ' . (!empty($element->get_settings('background_slideshow_background_position')) ? $element->get_settings('background_slideshow_background_position') : 'center') . '/' . (!empty($element->get_settings('background_slideshow_background_size')) ? $element->get_settings('background_slideshow_background_size') : 'cover'),
403	]
404	);
405	}
406	}
407	});
408
409	// We need to remove default WP lazyloading as it conflicts with vanilla lazy on iOS 15.
410	if (!$this->browser_lazy) {
411	add_filter('wp_lazy_loading_enabled', '__return_false');
412
413	if ($TwoSettings->get_settings('two_remove_elementor_lazyload') == 'on') {
414	add_action('elementor/widget/render_content', function ($content, $widget) {
415	if ($widget->get_name() === 'image') {
416	$content = str_replace(' loading="lazy"', '', $content);
417	}
418
419	return $content;
420	}, 10, 2);
421	}
422	}
423
424	if (!isset($_GET['two_optimize_only_images'])) { // phpcs:ignore
425	add_action('wp_head', [ $this, 'add_delayed_javascript_execution_script_header' ], -1000000000, 0);
426	add_action('wp_default_scripts', [ $this, 'dequeue_jquery_migrate' ]);
427
428	if ($two_disable_wp_dashicons == 'on') {
429	add_action('wp_print_styles', [ $this, 'two_deregister_styles' ], 100);
430	}
431
432	if ($this->two_youtube_vimeo_iframe_lazyload == 'on') {
433	add_action('wp_enqueue_scripts', [ $this, 'two_enqueue_styles' ]);
434	}
435
436	if ($this->two_lazyload == 'on' \|\|
437	$this->two_iframe_lazyload == 'on' \|\|
438	$this->two_bg_lazyload == 'on' \|\|
439	$this->two_video_lazyload == 'on' \|\|
440	$this->two_youtube_vimeo_iframe_lazyload == 'on' \|\|
441	$this->two_do_not_optimize_images == 'on') {
442	$this->ao_imgopt = new OptimizerImages([
443	'two_iframe_lazyload' => $this->two_iframe_lazyload,
444	'two_youtube_vimeo_iframe_lazyload' => $this->two_youtube_vimeo_iframe_lazyload,
445	]);
446	$this->ao_imgopt->run();
447	}
448
449	if (!empty($this->is_testing)) {
450	echo wp_kses_post($this->end_buffering($this->is_testing));
451	die;
452	}
453
454	if (isset($post->ID)) {
455	$this->set_modes($post->ID);
456	}
457	add_action('wp_meta', [ $this, 'two_meta' ]);
458	}
459	self::add_optimization_status_headers();
460	ob_start([ $this, 'end_buffering' ], 0, PHP_OUTPUT_HANDLER_REMOVABLE);
461	} elseif (is_string($should_serve_optimized_page)) {
462	OptimizerLogger::add_not_optimized_page_log($should_serve_optimized_page);
463	self::add_optimization_status_headers(0, $should_serve_optimized_page);
464	}
465	global $disableTwoCacheStructureCache;
466
467	if ($disableTwoCacheStructureCache === true) {
468	OptimizerLogger::add_not_optimized_page_log('Page is served optimized but bypassed cache structure caching');
469	}
470
471	if (isset($_GET[ 'two_detect_post_id' ])) { // phpcs:ignore
472	$current_post = OptimizerUtils::get_current_post_info();
473	header('X-TWO-POST-ID: ' . $current_post);
474	}
475	}
476
477	public static function add_optimization_status_headers($status = 1, $code = '')
478	{
479	header('X-TWO-PAGE-IS-OPTIMIZED: ' . $status);
480
481	if ($code) {
482	header('X-TWO-OPTIMIZE-REASON: ' . $code);
483	}
484	}
485
486	public static function two_headers()
487	{
488	global $TwoSettings;
489	header('X-TWO-OPTIMIZE: 1'); // do not edit, this is used in service to determine whether plugin is enabled.
490	header('X-TWO-VERSION: ' . $TwoSettings->get_settings('tenweb_so_version', 'Clear the cache to see the version'));
491	header('X-TWO-CACHE-DATE: ' . $TwoSettings->get_settings('two_clear_cache_date'));
492
493	if ($TwoSettings->get_settings('two_webp_delivery_working') == 1) {
494	header('X-TWO-WEBP: 1');
495	}
496
497	if ($TwoSettings->get_settings('two_test_mode') == 'on') {
498	header('X-TWO-TEST-MODE: 1');
499	}
500
501	if (isset($_GET['two_critical_status'])) { // phpcs:ignore
502	$two_critical_status = $TwoSettings->get_settings('two_critical_status');
503	$two_critical_pages = \TenWebOptimizer\OptimizerUtils::getCriticalPages();
504
505	if ($two_critical_status == 'true' && isset($two_critical_pages) && is_array($two_critical_pages)) {
506	if (isset($two_critical_pages[ 'front_page' ]) && get_option('tenweb_import_in_progress') != 1) {
507	header('X-TWO-CRITICAL: ' . $two_critical_pages[ 'front_page' ][ 'status' ]);
508	} else {
509	header('X-TWO-CRITICAL: not_started');
510	}
511	}
512	}
513	}
514
515	public function two_meta()
516	{
517	global $TwoSettings;
518
519	if ($this->two_webp_delivery_working == 1) {
520	echo '<meta name="X-TWO-WEBP" content="1">';
521	}
522	echo '<meta name="X-TWO-OPTIMIZE" content="1">';
523	echo '<meta name="X-TWO-CACHE-DATE" content="' . esc_attr($TwoSettings->get_settings('two_clear_cache_date')) . '">';
524	}
525
526	public function two_deregister_styles()
527	{
528	wp_deregister_style('dashicons');
529	}
530
531	public function two_enqueue_styles()
532	{
533	wp_enqueue_style('two_yt_vi_css', TENWEB_SO_URL . '/includes/external/css/two_yt_vi_lazyload.min.css', '', TENWEB_SO_VERSION);
534	}
535
536	public function add_delayed_javascript_execution_script_header()
537	{
538	echo trim(JSMin::minify('<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript">' . file_get_contents(__DIR__ . '/external/js/loader.js') . '</script>')); // phpcs:ignore
539
540	if ($this->two_delay_all_js_execution) {
541	global $TwoSettings;
542	$two_delay_custom_js_new = $TwoSettings->get_settings('two_delay_custom_js_new');
543
544	if (!empty($two_delay_custom_js_new) && !ctype_space($two_delay_custom_js_new)) {
545	echo '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript">
546	const two_delay_custom_js_new = new Event("two_delay_custom_js_new");
547	document.addEventListener("two_delay_custom_js_new", event => {
548	' . esc_js(stripslashes($two_delay_custom_js_new)) . '
549	})
550	</script>';
551	}
552
553	echo trim(JSMin::minify('<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript">' . // phpcs:ignore
554	'window.two_delayed_loading_attribute = "' . OptimizerScripts::TWO_DELAYED_JS_ATTRIBUTE . '";
555	window.two_delayed_js_load_libs_first = "' . esc_html($this->two_delayed_js_load_libs_first) . '";
556	window.two_delayed_loading_events = ["mousemove", "click", "keydown", "wheel", "touchmove", "touchend"];
557	window.two_event_listeners = [];
558
559	</script>'));
560
561	if ($this->two_timeout_js_load) {
562	echo '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript">
563	setTimeout(function() {
564	two_load_delayed_javascript();
565	},1500);
566	</script>';
567	}
568	} elseif ($this->two_delay_js_execution) {
569	echo '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript">' .
570	'window.two_delayed_loading_attribute = "' . esc_attr(OptimizerScripts::TWO_DELAYED_JS_ATTRIBUTE) . '";
571	window.two_delayed_js_load_libs_first = "' . esc_html($this->two_delayed_js_load_libs_first) . '";
572	window.two_delayed_loading_events = ["mousemove", "click", "keydown", "wheel", "touchmove", "touchend"];
573	window.two_event_listeners = [];
574	var two_load_delayed_javascript = function(event) {
575	var delayedScripts = [].map.call(document.querySelectorAll("script[" + window.two_delayed_loading_attribute + "]"), function(elm){
576	return elm;
577	})
578
579	if (window.two_delayed_js_load_libs_first === "on" ) {
580	delayedScripts = delayedScripts.sort(function (a, b) {
581	isLiba = a.outerHTML.indexOf("data:");
582	isLibb = b.outerHTML.indexOf("data:");
583
584	return isLiba - isLibb;
585	});
586	}
587	delayedScripts.forEach(function(elem) {
588	var src = elem.getAttribute(window.two_delayed_loading_attribute);
589	elem.setAttribute("src", src);
590	elem.removeAttribute(window.two_delayed_loading_attribute);
591	window.two_delayed_loading_events.forEach(function(event) {
592	document.removeEventListener(event, two_load_delayed_javascript, false)
593	});
594	})
595	};' .
596	'</script>';
597	}
598
599	if ($this->critical->uncritical_load_type === 'on_interaction' && $this->critical->critical_enabled) {
600	echo trim(JSMin::minify('<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript">' . // phpcs:ignore
601	'window.two_delayed_loading_attribute_css = "' . esc_attr(OptimizerStyles::TWO_DELAYED_CSS_ATTRIBUTE) . '";
602	window.two_delayed_loading_events_css = ["keydown", "mouseover", "touchmove", "touchstart"];
603	window.two_event_listeners_css = [];
604	var two_load_delayed_css = function(event) {
605	var delayedStyle = [].map.call(document.querySelectorAll("link[" + window.two_delayed_loading_attribute_css + "]"), function(elm){
606	return elm;
607	})
608
609	delayedStyle.forEach(function(elem) {
610	var src = elem.getAttribute(window.two_delayed_loading_attribute_css);
611	elem.setAttribute("href", src);
612	elem.removeAttribute(window.two_delayed_loading_attribute_css);
613	window.two_delayed_loading_events_css.forEach(function(event) {
614	document.removeEventListener(event, two_load_delayed_css, false)
615	});
616	})
617	};' .
618	'</script>'));
619	}
620
621	if ($this->two_delay_iframe_lazyload == 'on') {
622	echo '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript">' .
623	'window.two_delayed_iframe_loading_attribute = "' . esc_attr('data-src') . '";
624	window.two_delayed_loading_iframe_events = ["keydown", "mouseover", "touchmove", "touchstart"];
625	window.two_iframe_event_listeners = [];
626	var two_load_delayed_iframe = function(event) {
627	var delayedIframes = [].map.call(document.querySelectorAll("iframe.lazy_delay"), function(elm){
628	return elm;
629	})
630
631	delayedIframes.forEach(function(elem) {
632	var src = elem.getAttribute(window.two_delayed_iframe_loading_attribute);
633	elem.setAttribute("src", src);
634	elem.removeAttribute(window.two_delayed_iframe_loading_attribute);
635	window.two_delayed_loading_iframe_events.forEach(function(event) {
636	document.removeEventListener(event, two_load_delayed_iframe, false)
637	});
638	})
639	};' .
640	'</script>';
641	}
642	echo trim(JSMin::minify('<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . // phpcs:ignore
643	' type="text/javascript">
644	// Register delayed scripts load on document load event
645	document.onreadystatechange = function () {
646	if (document.readyState === "interactive") {
647	if(window.two_delayed_loading_attribute !== undefined){
648	window.two_delayed_loading_events.forEach(function(ev) { window.two_event_listeners[ev] = document.addEventListener(ev, two_load_delayed_javascript, {passive: false}) });
649	}
650	if(window.two_delayed_loading_attribute_css !== undefined){
651	window.two_delayed_loading_events_css.forEach(function(ev) { window.two_event_listeners_css[ev] = document.addEventListener(ev, two_load_delayed_css, {passive: false}) });
652	}
653	if(window.two_load_delayed_iframe !== undefined){
654	window.two_delayed_loading_iframe_events.forEach(function(ev) { window.two_iframe_event_listeners[ev] = document.addEventListener(ev, two_load_delayed_iframe, {passive: false}) });
655	}
656	}
657	}
658	</script>'));
659	}
660
661	public function add_two_js_footer($content)
662	{
663	$replaceTag = [ '</body>', 'before' ];
664
665	if ($this->TwoSettings->get_settings('two_add_overflow_to_page') != 'off') {
666	// Not using tag_escape as it removes comma from 'body, html'
667	$css = '<style id="two_fix_scroll_issues_style" >' . wp_strip_all_tags($this->TwoSettings->get_settings('two_add_overflow_to_page')) . ' {overflow-y: visible !important;}</style>';
668	$content = OptimizerUtils::inject_in_html($content, $css, $replaceTag);
669	}
670
671	if (is_plugin_active('elementor/elementor.php') && $this->two_delay_all_js_execution && !ExcludeJsFromDelay::plugin_is_excluded('elementor/elementor.php')) {
672	$init_elementor_animations_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' >
673	( function () {
674	window.addEventListener( "two_css_loaded", function () {
675	window.two_observer = new IntersectionObserver( items => {
676	items.forEach( item => {
677	if (item.isIntersecting) {
678	if (item.target.dataset.settings) {
679	let settings = JSON.parse(item.target.dataset.settings);
680	let animation = settings.animation ? settings.animation : settings._animation ? settings._animation : "zoomIn";
681	let delay = settings.animation_delay ? settings.animation_delay : settings._animation_delay ? settings._animation_delay : 0;
682	setTimeout(() => {
683	item.target.className = item.target.className.replace("elementor-invisible", "") + " animated " + animation;
684	}, delay);
685	delete settings.animation;
686	delete settings._animation;
687	item.target.dataset.settings = JSON.stringify(settings);
688	} else {
689	item.target.className = item.target.className.replace("elementor-invisible", "") + " animated zoomIn";
690	}
691	}
692	} )
693	}, {} );
694	document.querySelectorAll( ".elementor-invisible" ).forEach( e => {
695	window.two_observer.observe( e )
696	} )
697	} )
698	} )();
699	</script>';
700	$content = OptimizerUtils::inject_in_html($content, $init_elementor_animations_js, $replaceTag);
701	}
702
703	if (TWO_LAZYLOAD) {
704	if ($this->two_bg_lazyload == 'on' \|\| $this->two_lazyload == 'on' \|\| $this->two_iframe_lazyload == 'on' \|\| $this->two_video_lazyload == 'on' \|\| $this->two_youtube_vimeo_iframe_lazyload == 'on') {
705	if ($this->two_bg_lazyload == 'on') {
706	$bg_placeholder = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' >window["two_svg_placeholder"] = "' . OptimizerUtils::BG_SVG_PLACEHOLDER . '"</script>';
707	$content = OptimizerUtils::inject_in_html($content, $bg_placeholder, $replaceTag);
708	}
709
710	$noptimize_flag = ' data-noptimize="1"';
711
712	if ($this->two_iframe_lazyload == 'on' && $this->two_elemrntor_video_iframe == 'on') {
713	$two_elementor_video_to_iframe_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' src="' . plugins_url('external/js/two_elementor_video_to_iframe.js', __FILE__) . '"></script>';
714	$content = OptimizerUtils::inject_in_html($content, $two_elementor_video_to_iframe_js, $replaceTag);
715	}
716
717	if ($this->vanilla_lazy) {
718	$lazyload_min_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript" src="' . plugins_url('external/js/vanilla-lazyload/lazyload.min.js', __FILE__) . '"></script>';
719	$content = OptimizerUtils::inject_in_html($content, $lazyload_min_js, $replaceTag);
720
721	if ($this->two_bg_lazyload == 'on') {
722	$two_bg_vanilla_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript" src="' . plugins_url('external/js/vanilla-lazyload/two_bg_vanilla.js', __FILE__) . '"></script>';
723	$content = OptimizerUtils::inject_in_html($content, $two_bg_vanilla_js, $replaceTag);
724	}
725
726	if ($this->two_youtube_vimeo_iframe_lazyload == 'on') {
727	$two_yt_vi_lazyload_min_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' type="text/javascript" data-pagespeed-no-defer ' . OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE . ' src="' . plugins_url('external/js/two_yt_vi_lazyload.min.js', __FILE__) . '"></script>';
728	$content = OptimizerUtils::inject_in_html($content, $two_yt_vi_lazyload_min_js, $replaceTag);
729	}
730	$init_vanilla_lazy_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' >
731	if(typeof two_lazyLoadInstance === "undefined"){
732	window.two_lazyLoadInstance = new LazyLoad({
733	"callback_applied": function(element, instance){
734	let settings = instance._settings;
735	var bgDataValue = element.getAttribute("data-" + settings.data_bg_multi);
736	if (!bgDataValue) {
737	return;
738	}
739	if(window.getComputedStyle(element).getPropertyValue("background-image") !== bgDataValue) {
740	let style = element.getAttribute("style");
741	style += "background-image: " + bgDataValue + " !important;";
742	element.setAttribute("style", style);
743	}
744	}
745	});
746	}else{
747	two_lazyLoadInstance.update();
748	}
749	window.addEventListener("scroll", function() {
750	if(two_lazyLoadInstance.toLoadCount>0){
751	two_lazyLoadInstance.update();
752	}
753	});
754	/*
755	* Updates lazy-load instance from every ajax request
756	* When we use Ajax requests and get pictures back, we need to update lazy-load instance
757	* */
758	if (window.jQuery) {
759	jQuery.ajaxSetup({
760	complete: function() {
761	two_lazyLoadInstance.update();
762	}
763	});
764	}
765	</script>';
766	$content = OptimizerUtils::inject_in_html($content, $init_vanilla_lazy_js, $replaceTag);
767
768	return $content;
769	}
770
771	if (($this->browser_lazy && $this->two_bg_lazyload == 'on') \|\| $this->browser_lazy == false) {
772	$lazySizesConfig_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' ' . esc_attr($noptimize_flag) . '>window.lazySizesConfig=window.lazySizesConfig\|\|{};window.lazySizesConfig.loadMode=1;</script>';
773	$content = OptimizerUtils::inject_in_html($content, $lazySizesConfig_js, $replaceTag);
774	$jquery_lazy_min_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' src="' . plugins_url('external/js/jquery.lazy.min.js', __FILE__) . '"></script>';
775	$content = OptimizerUtils::inject_in_html($content, $jquery_lazy_min_js, $replaceTag);
776
777	if ($this->two_bg_lazyload == 'on') {
778	$two_lazyload_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' src="' . plugins_url('external/js/two_lazyload.js', __FILE__) . '"></script>';
779	$content = OptimizerUtils::inject_in_html($content, $two_lazyload_js, $replaceTag);
780	}
781	}
782
783	if ($this->browser_lazy == false) {
784	if ($this->two_iframe_lazyload == 'on') {
785	$jquery_lazy_iframe_min_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' src="' . plugins_url('external/js/jquery.lazy.iframe.min.js', __FILE__) . '"></script>';
786	$content = OptimizerUtils::inject_in_html($content, $jquery_lazy_iframe_min_js, $replaceTag);
787	}
788
789	if ($this->two_video_lazyload == 'on') {
790	$jquery_lazy_av_min_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' src="' . plugins_url('external/js/jquery.lazy.av.min.js', __FILE__) . '"></script>';
791	$content = OptimizerUtils::inject_in_html($content, $jquery_lazy_av_min_js, $replaceTag);
792	}
793
794	if ($this->two_youtube_vimeo_iframe_lazyload == 'on') {
795	$two_yt_vi_lazyload_min_js = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' src="' . plugins_url('external/js/two_yt_vi_lazyload.min.js', __FILE__) . '"></script>';
796	$content = OptimizerUtils::inject_in_html($content, $two_yt_vi_lazyload_min_js, $replaceTag);
797	}
798	}
799
800	if (($this->browser_lazy && $this->two_bg_lazyload == 'on') \|\| $this->browser_lazy == false) {
801	$lazy_script = '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . " >
802	window.onload = function() {
803	jQuery('.lazyload').Lazy({
804	visibleOnly:true,
805	afterLoad: function(element) {
806	element.css('display', '');
807	}
808	});
809	}
810	</script>";
811	$content = OptimizerUtils::inject_in_html($content, $lazy_script, $replaceTag);
812	}
813	}
814	}
815
816	return $content;
817	}
818
819	public function dequeue_jquery_migrate($scripts)
820	{
821	if ($this->two_dequeue_jquery_migrate == 'on' && !is_admin() && !empty($scripts->registered['jquery']) && !empty($scripts->registered['jquery']->deps)) {
822	$scripts->registered['jquery']->deps = array_diff(
823	$scripts->registered['jquery']->deps,
824	['jquery-migrate']
825	);
826	}
827	}
828
829	/**
830	* Returns optimized HTML content
831	*
832	* @return mixed\|string\|void
833	*
834	* @throws InvalidSelectorException
835	*/
836	private function end_buffering($content)
837	{
838	$content = apply_filters('two_content_before_optimization', $content, 10, 1);
839
840	$is_content_optimizable = OptimizerUrl::isUrlOptimizableByContent($content);
841
842	if (true !== $is_content_optimizable) {
843	self::add_optimization_status_headers(0, $is_content_optimizable);
844
845	return $content;
846	}
847
848	/**
849	* optimize options
850	*/
851	$classoptions = [
852	'OptimizerScripts' => [
853	'aggregate' => $this->aggregate_js,
854	'forcehead' => '',
855	'trycatch' => '',
856	'delay_js_execution' => $this->two_delay_js_execution,
857	'delay_all_js_execution' => $this->two_delay_all_js_execution,
858	'use_extended_exception_list_js' => $this->use_extended_exception_list_js,
859	'delayed_js_execution_list' => $this->two_delayed_js_execution_list,
860	'js_exclude' => $this->two_exclude_js,
861	'exclude_delay_js' => $this->two_exclude_delay_js,
862	'disabled_delay_all_js_pages' => $this->two_disabled_delay_all_js_pages,
863	'load_excluded_js_normally' => $this->two_load_excluded_js_normally,
864	'cdn_url' => '',
865	'include_inline' => $this->two_include_inline_js,
866	'minify_excluded' => $this->minify_js,
867	'two_delay_js_exclusions' => $this->two_delay_js_exclusions,
868	],
869	'OptimizerStyles' => [
870	'aggregate' => $this->aggregate_css,
871	'defer' => '',
872	'defer_inline' => '',
873	'inline' => '',
874	'css_exclude' => $this->two_exclude_css,
875	'include_inline' => $this->two_include_inline_css,
876	'nogooglefont' => false,
877	'minify_css' => $this->minify_css,
878	'async_all' => $this->async_all,
879	'disable_async' => false
880	],
881	];
882
883	if (isset($_GET['two_optimize_only_images']) && $_GET['two_optimize_only_images'] === '1') { // phpcs:ignore
884	if (!empty($content) && (function_exists('wp_filter_content_tags') \|\| function_exists('wp_make_content_images_responsive'))) {
885	$content = OptimizerImages::add_attachment_id_to_img($content);
886	}
887	$content = OptimizerUtils::injectCriticalBg($content, $this->critical, $this->cacheStructure);
888
889	return $content;
890	}
891
892	if ($this->cacheStructure->check($content)) {
893	$content = $this->cacheStructure->retrieve($content);
894	} elseif ($this->cacheStructure->getCacheStatus()) {
895	$this->cacheStructure->setCacheHeaderString('MISS');
896	}
897
898	// Moved HTML minification before js injection as it breaks scripts containing =>
899	// Can be moved to the end if library fixes the issue
900	if ($this->two_minify_html) {
901	$content = \Minifier\TinyMinify::html($content);
902	}
903
904	if (!$this->cacheStructure->isFromCache()) {
905	/*
906	* optimize css
907	* */
908	$twoptimizeStyles = new OptimizerStyles($content, $this->cacheStructure, $this->critical);
909
910	if (isset($this->critical) && isset($this->critical->critical_css) && $this->critical->critical_enabled && $this->critical->status == 'success') {
911	if ($this->critical->uncritical_load_type !== 'not_load') {
912	if ($this->critical->uncritical_load_type === 'async') {
913	$classoptions['OptimizerStyles']['async_all'] = true;
914	} elseif ($this->critical->uncritical_load_type === 'on_interaction') {
915	$classoptions['OptimizerStyles']['include_inline'] = true;
916	$classoptions['OptimizerStyles']['disable_async'] = true;
917	}
918	$twoptimizeStyles->read($classoptions['OptimizerStyles']);
919	$twoptimizeStyles->optimize();
920	$twoptimizeStyles->cache();
921	}
922	} else {
923	$twoptimizeStyles->read($classoptions['OptimizerStyles']);
924	$twoptimizeStyles->optimize();
925	$twoptimizeStyles->cache();
926	}
927	$content = $twoptimizeStyles->getcontent();
928
929	/*
930	* optimize js
931	* */
932	$twoptimizeScripts = new OptimizerScripts($content, $this->cacheStructure);
933	$twoptimizeScripts->read($classoptions['OptimizerScripts']);
934	$twoptimizeScripts->optimize();
935	$twoptimizeScripts->cache();
936	$content = $twoptimizeScripts->getcontent();
937
938	if (!empty($twoptimizeStyles->two_async_css_arr) \|\| !empty($twoptimizeScripts->two_js_list) \|\| !empty($this->critical_fonts_arr) \|\| !empty($twoptimizeScripts->two_js_list_excluded)) {
939	$two_worker_data_to_inject_css = $this->get_two_worker_data_script_tag(
940	[
941	'css' => $twoptimizeStyles->two_async_css_arr,
942	],
943	'_css'
944	);
945	$two_worker_data_to_inject_js = $this->get_two_worker_data_script_tag(
946	[
947	'js' => $twoptimizeScripts->two_js_list
948	],
949	'_js'
950	);
951	$two_worker_data_to_inject_excluded_js = $this->get_two_worker_data_script_tag(
952	[
953	'js' => $twoptimizeScripts->two_js_list_excluded
954	],
955	'_excluded_js'
956	);
957
958	$two_worker_data_to_inject_font = $this->get_two_worker_data_script_tag(
959	[
960	'font' => $twoptimizeStyles->critical_fonts_arr,
961	],
962	'_font'
963	);
964	$two_worker_data_to_inject_critical_status = $this->get_two_worker_data_script_tag(
965	[
966	'critical_data' => $twoptimizeStyles->two_critical_connection_data,
967	],
968	'_critical_data'
969	);
970	$two_worker_script = OptimizerUtils::get_worker_script();
971
972	if (!empty($twoptimizeStyles->two_async_css_arr)) {
973	foreach ($twoptimizeStyles->two_async_css_arr as $async_css) {
974	if (!empty($async_css) && isset($async_css['media'], $async_css['url'])) {
975	$two_worker_data_to_inject_css .= '<noscript><link rel="stylesheet" crossorigin="anonymous" class="two_uncritical_css_noscript" media="' . $async_css['media'] . '" href="' . stripslashes($async_css['url']) . '"></noscript>';
976	}
977	}
978	}
979
980	$content = OptimizerUtils::inject_in_html($content, $two_worker_data_to_inject_css, ['<head', 'after_tag']);
981	$content = OptimizerUtils::inject_in_html($content, $two_worker_data_to_inject_js, ['<head', 'after_tag']);
982	$content = OptimizerUtils::inject_in_html($content, $two_worker_data_to_inject_excluded_js, ['<head', 'after_tag']);
983	$content = OptimizerUtils::inject_in_html($content, $two_worker_data_to_inject_font, ['<head', 'after_tag']);
984	$content = OptimizerUtils::inject_in_html($content, $two_worker_data_to_inject_critical_status, ['<head', 'after_tag']);
985	$content = OptimizerUtils::inject_in_html($content, $two_worker_script, ['<body', 'after_tag']);
986
987	$this->cacheStructure->addToTagsToAdd($two_worker_data_to_inject_css, ['<head', 'after_tag']);
988	$this->cacheStructure->addToTagsToAdd($two_worker_data_to_inject_js, ['<head', 'after_tag']);
989	$this->cacheStructure->addToTagsToAdd($two_worker_data_to_inject_excluded_js, ['<head', 'after_tag']);
990	$this->cacheStructure->addToTagsToAdd($two_worker_data_to_inject_font, ['<head', 'after_tag']);
991	$this->cacheStructure->addToTagsToAdd($two_worker_data_to_inject_critical_status, ['<head', 'after_tag']);
992	$this->cacheStructure->addToTagsToAdd($two_worker_script, ['<body', 'after_tag']);
993	}
994
995	//sets cache
996	$this->cacheStructure->set();
997	}
998
999	if ($this->cacheStructure->isFromCache()) {
1000	$webFontList = $this->cacheStructure->getWebFontList();
1001	} else {
1002	$this->cacheStructure->addToWebFontList($twoptimizeStyles->webFont_list);
1003	$webFontList = $twoptimizeStyles->webFont_list;
1004	}
1005
1006	/*
1007	* optimize fonts
1008	*/
1009	if (!empty($webFontList) && is_array($webFontList)) {
1010	$fontOptimize_options = [
1011	'webFont_list' => $webFontList
1012	];
1013	$fontOptimize = new OptimizerFonts($content);
1014	$fontOptimize->read($fontOptimize_options);
1015	$fontOptimize->optimize();
1016	$content = $fontOptimize->getcontent();
1017
1018	$this->cacheStructure->addCacheHeaders();
1019	}
1020
1021	// This code is moved after the script optimization
1022	// Otherwise img tags inside ElementorFrontend config are breaking the js
1023	// They may be in ElementorFrontendConfig.post.excerpt and WP is trying to add decoding="async" to them without adding slashes
1024	// Not a perfect solution as the issue wil arise if js aggregation is off.
1025	if ($this->two_enable_use_srcset === 'on') {
1026	// Skip parsing the html if WP version does not support responsive images.
1027	if (!empty($content) && (function_exists('wp_filter_content_tags') \|\| function_exists('wp_make_content_images_responsive'))) {
1028	$content = OptimizerImages::add_attachment_id_to_img($content);
1029	}
1030	}
1031
1032	// Do not replace images with picture if delivery by hosting is enabled.
1033	if ($this->two_enable_picture_webp_delivery === 'on' && !TENWEB_SO_HOSTED_ON_10WEB && !$this->two_webp_delivery_working) {
1034	$content = OptimizerImages::replace_img_with_picture($content);
1035	}
1036
1037	if ($this->two_bg_lazyload === 'on') {
1038	$content = OptimizerUtils::replace_bg($content);
1039	}
1040
1041	if ($this->two_lazyload == 'on') {
1042	$content = apply_filters('twoptimize_html_after_minify', $content);
1043	}
1044
1045	if ($this->two_video_lazyload == 'on') {
1046	$content = apply_filters('twoptimize_html_after_minify_video', $content);
1047	}
1048
1049	if ($this->two_iframe_lazyload == 'on' \|\| $this->two_youtube_vimeo_iframe_lazyload == 'on') {
1050	$content = apply_filters('twoptimize_html_after_minify_iframe', $content);
1051	}
1052	$content = apply_filters('twoptimize_html_images', $content);
1053
1054	$this->reinit_lazy_load_options();
1055	$content = $this->add_two_js_footer($content);
1056
1057	$content = apply_filters('two_content_after_optimization', $content, 10, 1);
1058
1059	return $content;
1060	}
1061
1062	private function get_two_worker_data_script_tag($data, $suffix = '')
1063	{
1064	return '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ' . esc_attr(OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE) . ' ' .
1065	'type="text/javascript" >var two_worker_data' . $suffix . ' = ' . json_encode($data) . '</script>'; // phpcs:ignore
1066	}
1067
1068	private function check_cache_dir($dir)
1069	{
1070	// Try creating the dir if it doesn't exist.
1071	if (!file_exists($dir)) {
1072	if (!mkdir($dir, 0777, true) && !is_dir($dir)) { // phpcs:ignore
1073	return false;
1074	}
1075
1076	if (!file_exists($dir)) {
1077	return false;
1078	}
1079	}
1080
1081	// If we still cannot write, bail.
1082	if (!is_writable($dir)) { // phpcs:ignore
1083	return false;
1084	}
1085	// Create an index.html in there to avoid prying eyes!
1086	$idx_file = rtrim($dir, '/\\') . '/index.html';
1087
1088	if (!is_file($idx_file)) {
1089	@file_put_contents($idx_file, '<html><head><meta name="robots" content="noindex, nofollow"></head><body></body></html>'); // phpcs:ignore
1090	}
1091
1092	return true;
1093	}
1094
1095	private function check_and_create_dirs()
1096	{
1097	if (!defined('TENWEB_SO_CACHE_CHILD_DIR')) {
1098	// We didn't set a cache.
1099	return false;
1100	}
1101
1102	foreach (['', 'js', 'css'] as $dir) {
1103	if (!$this->check_cache_dir(OptimizerCache::get_path() . $dir)) {
1104	return false;
1105	}
1106	}
1107
1108	return true;
1109	}
1110
1111	private function clear_cache()
1112	{
1113	$dir = OptimizerCache::get_path();
1114	$delete_cache_db = OptimizerUtils::delete_all_cache_db();
1115	$delete_cache_file = OptimizerUtils::delete_all_cache_file($dir, [$dir, $dir . '/css', $dir . '/js']);
1116	OptimizerUtils::flushCloudflareCache();
1117	do_action('tenweb_purge_all_caches');
1118
1119	return $delete_cache_file && $delete_cache_db;
1120	}
1121
1122	private function set_modes($post_id)
1123	{
1124	$post_mode = get_post_meta($post_id, 'two_mode', true);
1125
1126	if ((isset($_GET['two_mode']) && !empty($_GET['two_mode'])) \|\| (isset($_GET['two_level']) && !empty($_GET['two_level']))) { // phpcs:ignore
1127	if (isset($_GET['two_mode'])) { // phpcs:ignore
1128	$mode_name = sanitize_text_field($_GET['two_mode']); // phpcs:ignore
1129	$mode = OptimizerUtils::get_modes($mode_name);
1130	} elseif (isset($_GET['two_level'])) { // phpcs:ignore
1131	$level = (int) $_GET['two_level']; // phpcs:ignore
1132	$mode = OptimizerUtils::get_modes(null, false, $level);
1133	}
1134	} else {
1135	$mode = $post_mode;
1136	}
1137
1138	if (is_array($mode) && isset($mode['mode'])) {
1139	foreach ($mode as $key => $val) {
1140	$val = ($val === '1' \|\| $val === true);
1141
1142	if ($key == 'critical_enabled') {
1143	$this->critical->critical_enabled = $val;
1144	} elseif (isset($this->$key)) {
1145	$this->$key = $val;
1146	}
1147	}
1148	}
1149	}
1150
1151	private function reinit_lazy_load_options()
1152	{
1153	if (!$this->ao_imgopt) {
1154	return;
1155	}
1156
1157	$smart_ll_data = $this->ao_imgopt->get_smart_lazy_load_data();
1158
1159	if ($this->two_youtube_vimeo_iframe_lazyload === 'on' && !isset($smart_ll_data['two_youtube_vimeo_iframe_lazyload'])) {
1160	$this->two_youtube_vimeo_iframe_lazyload = 'off';
1161	}
1162
1163	if ($this->two_iframe_lazyload === 'on' && !isset($smart_ll_data['iframe'])) {
1164	$this->two_iframe_lazyload = 'off';
1165	}
1166
1167	if ($this->two_bg_lazyload === 'on' && OptimizerUtils::has_changed_bg_image() === false) {
1168	$this->two_bg_lazyload = 'off';
1169	}
1170
1171	if ($this->two_elemrntor_video_iframe === 'on' && $this->elementor_youtube_video === false) {
1172	$this->two_elemrntor_video_iframe = 'off';
1173	}
1174	}
1175
1176	public function detect_elementor_video_widget($widget_content, $widget)
1177	{
1178	if ($widget->get_name() === 'video') {
1179	$active_settings = $widget->get_active_settings();
1180
1181	if (isset($active_settings['video_type']) && $active_settings['video_type'] === 'youtube' && !empty($active_settings['youtube_url'])) {
1182	$this->elementor_youtube_video = true;
1183	}
1184	}
1185
1186	return $widget_content;
1187	}
1188
1189	private function should_serve_optimized_page($post_mode)
1190	{
1191	/*
1192	* Function decides whether optimized page should be served or no. It returns boolean or sting. If returns sting
1193	* it contains the reason why page should not be optimized
1194	* @returns bool \| string
1195	* */
1196
1197	if (is_admin() \|\| is_user_logged_in()) {
1198	return false;
1199	}
1200
1201	if (is_search()) {
1202	return 'Search page';
1203	}
1204
1205	if (isset($_GET['two_critical_status']) \|\| isset($_GET['two_action']) \|\| isset($_GET['two_nooptimize']) \|\| isset($_GET['elementor-preview'])) { // phpcs:ignore
1206	return false;
1207	}
1208
1209	// don't optimize rest requests
1210	if (\TenWebOptimizer\OptimizerUtils::is_rest()) {
1211	return 'Rest request';
1212	}
1213
1214	// only run on GET requests
1215	if (!\TenWebOptimizer\OptimizerCache::isGetRequest()) {
1216	$method = (isset($_SERVER['REQUEST_METHOD'])) ? sanitize_text_field($_SERVER['REQUEST_METHOD']) : 'unknown';
1217
1218	return 'Request mode is: ' . $method;
1219	}
1220
1221	if (isset($_GET['two_mode']) && $_GET['two_mode'] === 'no_optimize') { // phpcs:ignore
1222	return 'two_mode GET parameter is no_optimize';
1223	}
1224
1225	if ($post_mode == 'no_optimize') {
1226	return 'post mode is ' . $post_mode;
1227	}
1228
1229	if ($this->two_test_mode === 'on' && !isset($_GET['twbooster'])) { // phpcs:ignore
1230	return 'test mode is enabled';
1231	}
1232
1233	// Check for error status codes
1234	$http_response_code = http_response_code();
1235
1236	if ($http_response_code && in_array($http_response_code, TWO_NOT_OPTIMIZED_STATUS_LIST)) {
1237	return 'HTTP status code is: ' . $http_response_code;
1238	}
1239
1240	return \TenWebOptimizer\OptimizerUrl::urlIsOptimizableWithReason();
1241	}
1242	}
1243