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

tenweb-speed-optimizer / includes / OptimizerScripts.php

tenweb-speed-optimizer / includes Last commit date

OptimizerScripts.php

1191 lines

1	<?php
2
3	namespace TenWebOptimizer;
4
5	use Exception;
6	use JSMin\JSMin;
7	use MatthiasMullie\Minify\JS;
8
9	if (!defined('ABSPATH')) {
10	exit;
11	}
12
13	class OptimizerScripts extends OptimizerBase
14	{
15	const TWO_DELAYED_JS_ATTRIBUTE = 'data-twodelayedjs';
16
17	const TWO_NO_DELAYED_JS_ATTRIBUTE = 'data-two-no-delay';
18
19	const TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE = 'data-pagespeed-no-defer';
20
21	private $scripts = [];
22
23	private $move = [
24	'first' => [],
25	'last' => [],
26	];
27
28	private $dontmove = [
29	'document.write',
30	'html5.js',
31	'show_ads.js',
32	'google_ad',
33	'histats.com/js',
34	'statcounter.com/counter/counter.js',
35	'ws.amazon.com/widgets',
36	'media.fastclick.net',
37	'/ads/',
38	'comment-form-quicktags/quicktags.php',
39	'edToolbar',
40	'intensedebate.com',
41	'scripts.chitika.net/',
42	'_gaq.push',
43	'jotform.com/',
44	'admin-bar.min.js',
45	'GoogleAnalyticsObject',
46	'plupload.full.min.js',
47	'syntaxhighlighter',
48	'adsbygoogle',
49	'gist.github.com',
50	'_stq',
51	'nonce',
52	'post_id',
53	'data-noptimize',
54	'logHuman',
55	self::TWO_NO_DELAYED_JS_ATTRIBUTE,
56	'two_exclude_inline',
57	'data-two_exclude'
58	];
59
60	private $domove = [
61	'gaJsHost',
62	'load_cmc',
63	'jd.gallery.transitions.js',
64	'swfobject.embedSWF(',
65	'tiny_mce.js',
66	'tinyMCEPreInit.go',
67	];
68
69	private $domovelast = [
70	'addthis.com',
71	'/afsonline/show_afs_search.js',
72	'disqus.js',
73	'networkedblogs.com/getnetworkwidget',
74	'infolinks.com/js/',
75	'jd.gallery.js.php',
76	'jd.gallery.transitions.js',
77	'swfobject.embedSWF(',
78	'linkwithin.com/widget.js',
79	'tiny_mce.js',
80	'tinyMCEPreInit.go',
81	];
82
83	private $dontmoveExtended = [
84	'document.write',
85	'google_ad',
86	'edToolbar',
87	'gtag',
88	'_gaq.push',
89	'_gaLt',
90	'GoogleAnalyticsObject',
91	'syntaxhighlighter',
92	'adsbygoogle',
93	'ci_cap_',
94	'_stq',
95	'nonce',
96	'post_id',
97	'LogHuman',
98	'idcomments_acct',
99	'ch_client',
100	'sc_online_t',
101	'_stq',
102	'bannersnack_embed',
103	'vtn_player_type',
104	'ven_video_key',
105	'ANS_customer_id',
106	'tdBlock',
107	'tdLocalCache',
108	'wpRestNonce',
109	'"url":',
110	'lazyLoadOptions',
111	'adthrive',
112	'loadCSS',
113	'google_tag_params',
114	'clicky_custom',
115	'clicky_site_ids',
116	'NSLPopupCenter',
117	'_paq',
118	'gtm',
119	'dataLayer',
120	'RecaptchaLoad',
121	'WPCOM_sharing_counts',
122	'jetpack_remote_comment',
123	'subscribe-field',
124	'contextly',
125	'_mmunch',
126	'gt_request_uri',
127	'doGTranslate',
128	'docTitle',
129	'bs_ajax_paginate_',
130	'bs_deferred_loading_',
131	'theChampRedirectionUrl',
132	'theChampFBCommentUrl',
133	'theChampTwitterRedirect',
134	'theChampRegRedirectionUrl',
135	'ESSB_CACHE_URL',
136	'oneall_social_login_providers_',
137	'betterads_screen_width',
138	'woocommerce_wishlist_add_to_wishlist_url',
139	'arf_conditional_logic',
140	'heateorSsHorSharingShortUrl',
141	'TL_Const',
142	'bimber_front_microshare',
143	'setAttribute("id"',
144	'setAttribute( "id"',
145	'TribeEventsPro',
146	'peepsotimedata',
147	'wphc_data',
148	'hc_rand_id',
149	'RBL_ADD',
150	'AfsAnalyticsObject',
151	'_thriveCurrentPost',
152	'esc_login_url',
153	'fwduvpMainPlaylist',
154	'Bibblio.initRelatedContent',
155	'showUFC()',
156	'#iphorm-',
157	'#fancy-',
158	'ult-carousel-',
159	'theChampLJAuthUrl',
160	'f._fbq',
161	'Insticator',
162	'w2dc_js_objects',
163	'cherry_ajax',
164	'ad_block_',
165	'elementorFrontendConfig',
166	'zeen_',
167	'disqusIdentifier',
168	'currentAjaxUrl',
169	'geodir_event_call_calendar_',
170	'atatags-',
171	'hbspt.forms.create',
172	'function(c,h,i,m,p)',
173	'dataTable({',
174	'rankMath = {',
175	'_atrk_opts',
176	'quicklinkOptions',
177	'ct_checkjs_',
178	'WP_Statistics_http',
179	'penci_block_',
180	'omapi_localized',
181	'omapi_data',
182	'OptinMonsterApp',
183	'tminusnow',
184	'nfForms',
185	'galleries.gallery_',
186	'wcj_evt.prodID',
187	'advads_tracking_ads',
188	'advadsGATracking.postContext',
189	'woopack_config',
190	'ulp_content_id',
191	'wp-cumulus/tagcloud.swf?r=',
192	'ctSetCookie(\'ct_checkjs\'',
193	'woof_really_curr_tax',
194	'uLogin.customInit',
195	'i18n_no_matching_variations_text',
196	'alsp_map_markers_attrs',
197	'var inc_opt =',
198	'iworks_upprev',
199	'yith_wcevti_tickets',
200	'window.metrilo.ensure_cbuid',
201	'metrilo.event',
202	'wordpress_page_root',
203	'wcct_info',
204	'Springbot.product_id',
205	'pysWooProductData',
206	'dfd-heading',
207	'owl=$("#',
208	'penci_megamenu',
209	'fts_security',
210	'algoliaAutocomplete',
211	'avia_framework_globals',
212	'tabs.easyResponsiveTabs',
213	'searchlocationHeader',
214	'yithautocomplete',
215	'data-parallax-speed',
216	'currency_data=',
217	'cedexisData',
218	'function reenableButton',
219	'#wpnbio-show',
220	'e.Newsletter2GoTrackingObject',
221	'var categories_',
222	'"+nRemaining+"',
223	'cartsguru_cart_token',
224	'after_share_easyoptin',
225	'location_data.push',
226	'thirstyFunctions.isThirstyLink',
227	'styles: \' #custom-menu-',
228	'function svc_center_',
229	'#svc_carousel2_container_',
230	'advads.move',
231	'elementid',
232	'advads_has_ads',
233	'wpseo_map_init',
234	'mdf_current_page_url',
235	'tptn_tracker',
236	'dpsp_pin_button_data',
237	'searchwp_live_search_params',
238	'wpp_params',
239	'top.location,thispage',
240	'selection+pagelink',
241	'ic_window_resolution',
242	'PHP.wp_p_id',
243	'ShopifyBuy.UI.onReady(client)',
244	'orig_request_uri',
245	'gie.widgets.load',
246	'Adman.Flash',
247	'PHP.wp_p_id',
248	'window.broadstreetKeywords',
249	'var productId =',
250	'var flatsomeVars',
251	'wc_product_block_data',
252	'static.mailerlite.com',
253	'amzn_assoc',
254	'_bs_getParameterByName',
255	'_stq.push',
256	'h._remove',
257	'var FlowFlowOpts',
258	'var WCPFData =',
259	'var _beeketing',
260	'var _statcounter',
261	'var actions =',
262	'var current_url',
263	'var object_name',
264	'var the_ajax_script',
265	'var wc_cart_fragments_params',
266	'var woocommerce_params',
267	'var wpml_cookies',
268	'wc_add_to_cart_params',
269	'window.broadstreetKeywords',
270	'window.wc_ga_pro.available_gateways',
271	'xa.prototype',
272	'HOUZEZ_ajaxcalls_vars',
273	'w2dc_maps_objects',
274	'w2dc_controller_args_array',
275	'w2dc_map_markers_attrs',
276	'YT.Player',
277	'WPFC.data',
278	'function current_video_',
279	'var videodiv',
280	'var slider_wppasrotate',
281	'wppas_ga',
282	'var blockClass',
283	'tarteaucitron',
284	'pw_brand_product_list',
285	'tminusCountDown',
286	'pysWooSelectContentData',
287	'wpvq_ans89733',
288	'_isp_version',
289	'price_range_data',
290	'window.FeedbackCompanyWidgets',
291	'woocs_current_currency',
292	'woo_variation_swatches_options',
293	'woocommerce_price_slider_params',
294	'scriptParams',
295	'form-adv-pagination',
296	'borlabsCookiePrioritize',
297	'urls_wpwidgetpolylang',
298	'quickViewNonce',
299	'frontendscripts_params',
300	'nj-facebook-messenger',
301	'var fb_mess_position',
302	'init_particles_row_background_script',
303	'setREVStartSize',
304	'fl-node',
305	'PPAccordion',
306	'soliloquy_',
307	'wprevpublicjs_script_vars',
308	'DTGS_NONCE_FRONTEND',
309	'et_animation_data',
310	'archives-dropdown',
311	'loftloaderCache',
312	'SmartSliderSimple',
313	'var nectarLove',
314	'var incOpt',
315	'RocketBrowserCompatibilityChecker',
316	'RocketPreloadLinksConfig',
317	'placementVersionId',
318	'var useEdit',
319	'var DTGS_NONCE_FRONTEND',
320	'n2jQuery',
321	'et_core_api_spam_recaptcha',
322	'cnArgs',
323	'__CF$cv$params',
324	'trustbox_settings',
325	'aepro',
326	'cdn.jst.ai',
327	'w2dc_fields_in_categories',
328	'aepc_pixel',
329	'avadaWooCommerceVars',
330	'var isb',
331	'fcaPcPost',
332	'csrf_token',
333	'icwp_wpsf_vars_lpantibot',
334	'wpvViewHead',
335	'ed_school_plugin',
336	'aps_comp_',
337	'guaven_woos',
338	'__lm_redirect_to',
339	'__wpdm_view_count',
340	'bookacti.booking_system',
341	'nfFrontEnd',
342	'view_quote_cart_link',
343	'__eae_decode_emails',
344	'divioverlays_ajaxurl',
345	'var _EPYT_',
346	'#ins-heading-',
347	'#ins-button-',
348	'tve_frontend_options',
349	'lb24.src',
350	'amazon_Login_accessToken',
351	'porto_infinite_scroll',
352	'.adace-loader-',
353	'adace_load_',
354	'tagGroupsAccordiontaggroupscloudaccordion',
355	'tagGroupsTabstaggroupscloudtabs',
356	'jrRelatedWidgets',
357	];
358
359	private $delayed_js = [];
360
361	public $cdn_url = '';
362
363	private $aggregate = false;
364
365	private $trycatch = false;
366
367	private $alreadyminified = false;
368
369	private $forcehead = true;
370
371	private $include_inline = false;
372
373	private $jscode = '';
374
375	private $hashes = [];
376
377	private $url = '';
378
379	private $restofcontent = '';
380
381	private $md5hash = '';
382
383	private $whitelist = '';
384
385	private $jsremovables = [];
386
387	private $inject_min_late = '';
388
389	private $minify_excluded = true;
390
391	/**
392	* @var bool
393	*/
394	private $delay_js_execution = false;
395
396	/**
397	* @var OptimizerCacheStructure
398	*/
399	private $cacheStructure;
400
401	/**
402	* OptimizerStyles constructor.
403	*
404	* @param string $content
405	* @param OptimizerCacheStructure $cacheStructure
406	*/
407	private $TwoSettings;
408
409	/**
410	* @var bool
411	*/
412	private $delay_all_js_execution;
413
414	public $two_js_list = [];
415
416	public $two_js_list_excluded = [];
417
418	private $exclude_blob_list = [
419	'adsbygoogle.js'
420	];
421
422	public function __construct($content, $cacheStructure)
423	{
424	global $TwoSettings;
425	$this->TwoSettings = $TwoSettings;
426	parent::__construct($content);
427	$this->cacheStructure = $cacheStructure;
428	}
429
430	// Reads the page and collects script tags.
431	public function read($options)
432	{
433	$exclJSArr = [];
434
435	// Determine whether we're doing JS-files aggregation or not.
436	if (isset($options['aggregate'])) {
437	$this->aggregate = $options['aggregate'];
438	}
439
440	// Returning true for "dontaggregate" turns off aggregation.
441	// include inline?
442	if ($options['include_inline'] && $this->aggregate) {
443	$this->include_inline = true;
444	}
445	$this->inject_min_late = true;
446	// Determine whether excluded files should be minified if not yet so.
447	// phpcs:ignore Squiz.PHP.CommentedOutCode.Found
448	/*if ( !$options['minify_excluded'] && $options['aggregate'] ) {
449	$this->minify_excluded = FALSE;
450	}*/
451	$this->minify_excluded = $options['minify_excluded'];
452
453	if ($this->aggregate) {
454	$this->minify_excluded = false;
455	}
456
457	// get extra exclusions settings or filter.
458	$excludeJS = $options['js_exclude'];
459
460	if ('' !== $excludeJS) {
461	if (is_array($excludeJS)) {
462	if (($removeKeys = array_keys($excludeJS, 'remove')) !== false) {
463	foreach ($removeKeys as $removeKey) {
464	unset($excludeJS[$removeKey]);
465	$this->jsremovables[] = $removeKey;
466	}
467	}
468	$exclJSArr = array_keys($excludeJS);
469	} else {
470	$exclJSArr = array_filter(array_map('trim', explode(',', $excludeJS)));
471	}
472
473	$this->dontmove = array_merge($exclJSArr, $this->dontmove);
474	}
475	$arrayFromHook = apply_filters('two_modify_exclude_js_from_aggregation', $this->dontmove, 10, 1);
476
477	if (is_array($arrayFromHook)) {
478	$this->dontmove = $arrayFromHook;
479	}
480
481	if ($options['use_extended_exception_list_js']) {
482	$this->dontmove = array_unique(array_merge($this->dontmoveExtended, $this->dontmove));
483	}
484
485	// Should we add delay execution
486	if ($options['delay_js_execution']) {
487	$this->delay_js_execution = true;
488	}
489
490	// Should we add delay execution
491	if ($options['delay_all_js_execution']) {
492	$this->delay_all_js_execution = true;
493	}
494
495	// delay js execution.
496	$delayJSExecutionList = $options['delayed_js_execution_list'];
497
498	if ('' !== $delayJSExecutionList) {
499	$delayJSExecution = array_filter(array_map('trim', explode(',', $delayJSExecutionList)));
500	$this->delayed_js = array_merge($delayJSExecution, $this->delayed_js);
501	}
502
503	$delayJSExecutionFromHook = apply_filters('two_modify_delay_execution', $this->delayed_js, 10, 1);
504
505	if (is_array($delayJSExecutionFromHook)) {
506	$this->delayed_js = $delayJSExecutionFromHook;
507	}
508
509	// Should we add try-catch?
510	if ($options['trycatch']) {
511	$this->trycatch = true;
512	}
513
514	// force js in head?
515	if ($options['forcehead']) {
516	$this->forcehead = true;
517	} else {
518	$this->forcehead = false;
519	}
520	// get cdn url.
521	$this->cdn_url = $options['cdn_url'];
522	// noptimize me.
523	$this->content = $this->hide_noptimize($this->content);
524	// Save IE hacks.
525	$this->content = $this->hide_iehacks($this->content);
526	// comments.
527	$this->content = $this->hide_comments($this->content);
528
529	// Get script files.
530	if (preg_match_all('#<script.*</script>#Usmi', $this->content, $matches)) {
531	if ($this->delay_all_js_execution) {
532	$exclude_delay_js = ExcludeJsFromDelay::get_exclusion_list($options, $this->content);
533	$excludeJSLoadNormally = array_merge(explode(',', $options['load_excluded_js_normally']), ExcludeJsFromDelay::EXCLUDE_LIST['types']); //do not make blob templates, schema.org and other excluded types
534
535	foreach ($matches[0] as $tag) {
536	$delay_uid = uniqid('two_', false);
537
538	if (false !== strpos($tag, OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE)) {
539	continue;
540	}
541
542	$excluded_script = false;
543
544	foreach ($exclude_delay_js as $type) {
545	if (!empty($type) && preg_match('~' . $type . '~', $tag)) {
546	$excluded_script = true;
547	break;
548	}
549	}
550	$load_excluded_script_normally = false;
551
552	foreach ($excludeJSLoadNormally as $type) {
553	if (!empty($type) && false !== strpos($tag, $type)) {
554	$load_excluded_script_normally = true;
555	break;
556	}
557	}
558
559	if ($excluded_script && ($this->TwoSettings->get_settings('two_load_excluded_js_via_worker') != 'on' \|\| $load_excluded_script_normally)) {
560	continue;
561	}
562
563	preg_match('#<script[^>]id=("\|\')([^>])("\|\')#Usmi', $tag, $source);
564	$script_id = '';
565
566	if (isset($source[2])) {
567	$script_id = $source[2];
568	}
569
570	if (preg_match('#<script[^>]src=("\|\')([^>])("\|\')#Usmi', $tag, $source)) {
571	if (isset($source[2])) {
572	$dealy_script_data = [
573	'inline' => false,
574	'url' => $source[2],
575	'id' => $script_id,
576	'uid' => $delay_uid,
577	'exclude_blob' => false,
578	];
579
580	foreach ($this->exclude_blob_list as $exclude_blob) {
581	if (!empty($exclude_blob) && false !== strpos($source[2], $exclude_blob)) {
582	$dealy_script_data['exclude_blob'] = true;
583	break;
584	}
585	}
586
587	if ($excluded_script) {
588	$dealy_script_data['excluded_from_delay'] = true;
589	$this->two_js_list_excluded[] = $dealy_script_data;
590	} else {
591	$dealy_script_data['excluded_from_delay'] = false;
592	$this->two_js_list[] = $dealy_script_data;
593	}
594	}
595	$new_tag = str_replace(['src', '<script'], ['data-two_delay_src', '<script data-two_delay_id="' . $delay_uid . '"'], $tag);
596	} else {
597	preg_match('#<script.>(.)</script>#Usmi', $tag, $code);
598
599	if (isset($code[1])) {
600	// Restore comments to fix inline js containing html comment.
601	$js_code = $this->restore_comments($code[1]);
602	// Encode the js to keep unicode characters after decode.
603	$inline_code = base64_encode(rawurlencode($js_code));
604	$dealy_script_data = [
605	'inline' => true,
606	'code' => $inline_code,
607	'id' => $script_id,
608	'uid' => $delay_uid,
609	'exclude_blob' => false,
610	];
611
612	if ($excluded_script) {
613	$dealy_script_data['excluded_from_delay'] = true;
614	$this->two_js_list_excluded[] = $dealy_script_data;
615	} else {
616	$dealy_script_data['excluded_from_delay'] = false;
617	$this->two_js_list[] = $dealy_script_data;
618	}
619	}
620	$new_tag = str_replace(['<script', $code[1]], ["<script data-two_delay_src='inline' data-two_delay_id=\"" . $delay_uid . '"', ''], $tag);
621	}
622
623	// phpcs:ignore Squiz.PHP.CommentedOutCode.Found
624	//$this->content = str_replace($tag , $new_tag, $this->content);
625	$pos = strpos($this->content, $tag);
626
627	if ($pos !== false) {
628	$this->content = substr_replace($this->content, $new_tag, $pos, strlen($tag));
629	}
630	$this->cacheStructure->addToTagsToReplace($tag, $new_tag);
631	}
632
633	return true;
634	}
635
636	foreach ($matches[0] as $tag) {
637	// only consider script aggregation for types whitelisted in should_aggregate-function or if it is for delayed
638	$should_aggregate = $this->should_aggregate($tag);
639
640	if (! ($this->delay_js_execution && $this->isfordelay($tag, $this->delayed_js)) && !$should_aggregate) {
641	$tag = '';
642	continue;
643	}
644
645	if (preg_match('#<script[^>]src=("\|\')([^>])("\|\')#Usmi', $tag, $source)) {
646	// non-inline script.
647	if ($this->isremovable($tag, $this->jsremovables)) {
648	$this->content = str_replace($tag, '', $this->content);
649	$this->cacheStructure->addToTagsToReplace($tag, '');
650	continue;
651	}
652	$origTag = null;
653	$url = current(explode('?', $source[2], 2));
654
655	if ($this->delay_js_execution && $this->isfordelay($url, $this->delayed_js)) {
656	// phpcs:ignore Squiz.PHP.CommentedOutCode.Found
657	//$newTag = '<script type="text/javascript" '.self::TWO_DELAYED_JS_ATTRIBUTE.'="'.$url.'"></script>';
658	$newTag = str_replace('src=', self::TWO_DELAYED_JS_ATTRIBUTE . '=', $tag);
659
660	$this->content = str_replace($tag, $newTag, $this->content);
661	$this->cacheStructure->addToTagsToReplace($tag, $newTag);
662
663	continue;
664	}
665	$path = $this->getpath($url);
666
667	if (false !== $path && preg_match('#\.js$#', $path) && $this->ismergeable($tag)) {
668	// ok to optimize, add to array.
669	$this->scripts[md5($path)] = $path;
670	} else {
671	$origTag = $tag;
672	$newTag = $tag;
673
674	// non-mergeable script (excluded or dynamic or external).
675	if (is_array($exclJSArr)) {
676	if (OptimizerUtils::is_pagespeed_js_defer_enabled()) {
677	// should we add flags to disable async loading?
678	foreach ($exclJSArr as $exclTag) {
679	if (false !== strpos($origTag, $exclTag)) {
680	$newTag = str_replace('<script ', '<script ' . esc_attr(OptimizerScripts::TWO_DISABLE_PAGESPEED_DEFER_ATTRIBUTE) . ' ', $newTag);
681	}
682	}
683	} else {
684	//todo check this, there has to be a bug
685	// should we add flags to enable async loading?
686	if (is_array($excludeJS)) {
687	foreach ($excludeJS as $exclTag => $exclFlags) {
688	if (false !== strpos($origTag, $exclTag) && in_array($exclFlags, ['async', 'defer'])) {
689	$newTag = str_replace('<script ', '<script ' . $exclFlags . ' ', $newTag);
690	}
691	}
692	}
693	}
694	}
695
696	// Should we minify the non-aggregated script?
697	// -> if aggregate is on and exclude minify is on
698	// -> if aggregate is off and the file is not in dontmove.
699	if ($path && $this->minify_excluded) {
700	$consider_minified_array = false;
701
702	if ((false === $this->aggregate && str_replace($this->dontmove, '', $path) === $path) \|\| (true === $this->aggregate && (false === $consider_minified_array \|\| str_replace($consider_minified_array, '', $path) === $path))) {
703	$minified_url = $this->minify_single($path);
704
705	// replace orig URL with minified URL from cache if so.
706	if (!empty($minified_url)) {
707	$newTag = str_replace($url, $minified_url, $newTag);
708	}
709	}
710	}
711
712	if ($this->ismovable($newTag)) {
713	// can be moved, flags and all.
714	if ($this->movetolast($newTag)) {
715	$this->move['last'][] = $newTag;
716	} else {
717	$this->move['first'][] = $newTag;
718	}
719	} else {
720	// cannot be moved, so if flag was added re-inject altered tag immediately.
721	if ($origTag !== $newTag) {
722	$this->content = str_replace($origTag, $newTag, $this->content);
723	$this->cacheStructure->addToTagsToReplace($origTag, $newTag);
724
725	$origTag = '';
726	}
727	// and forget about the $tag (not to be touched any more).
728	$tag = '';
729	}
730	}
731	} else {
732	//this tag is for delay
733	if ($this->delay_js_execution && $this->isfordelay($tag, $this->delayed_js)) {
734	$type = OptimizerUtils::get_javascipt_type($tag);
735	preg_match('#<script.>(.)</script>#Usmi', $tag, $code);
736
737	if (isset($code[1])) {
738	$newTag = '<script ' . self::TWO_DELAYED_JS_ATTRIBUTE . '="data:' . $type . ';base64,' . base64_encode($code[1]) . '"></script>';
739	$this->content = str_replace($tag, $newTag, $this->content);
740	$this->cacheStructure->addToTagsToReplace($tag, $newTag);
741
742	continue;
743	}
744	}
745
746	// Inline script.
747	if ($this->isremovable($tag, $this->jsremovables)) {
748	$this->content = str_replace($tag, '', $this->content);
749	$this->cacheStructure->addToTagsToReplace($tag, '');
750
751	continue;
752	}
753	// unhide comments, as javascript may be wrapped in comment-tags for old times' sake.
754	$tag = $this->restore_comments($tag);
755
756	if ($this->include_inline && $this->ismergeable($tag)) {
757	preg_match('#<script.>(.)</script>#Usmi', $tag, $code);
758	$code = preg_replace('#.<!\[CDATA\[(?:\s\/)?(.)(?://\|/\)\s?\]\]>.*#sm', '$1', $code[1]);
759	$code = preg_replace('/(?:^\\s<!--\\s\|\\s(?:\\/\\/)?\\s-->\\s*$)/', '', $code);
760	$this->scripts[md5($code)] = 'INLINE;' . $code;
761	} else {
762	// Can we move this?
763	$twoptimize_js_moveable = '';
764
765	//todo refactor this
766	if ($this->ismovable($tag) \|\| '' !== $twoptimize_js_moveable) {
767	if ($this->movetolast($tag) \|\| 'last' === $twoptimize_js_moveable) {
768	$this->move['last'][] = $tag;
769	} else {
770	$this->move['first'][] = $tag;
771	}
772	} else {
773	// We shouldn't touch this.
774	$tag = '';
775	}
776	}
777	// Re-hide comments to be able to do the removal based on tag from $this->content.
778	$tag = $this->hide_comments($tag);
779	}
780	//Remove the original script tag.
781	$this->content = str_replace($tag, '', $this->content);
782	$this->cacheStructure->addToTagsToReplace($tag, '');
783	}
784
785	return true;
786	}
787
788	// No script files, great ;-)
789	return false;
790	}
791
792	/**
793	* Determines wheter a certain `<script>` $tag should be aggregated or not.
794	* We consider these as "aggregation-safe" currently:
795	* - script tags without a `type` attribute
796	* - script tags with these `type` attribute values: `text/javascript`, `text/ecmascript`, `application/javascript`,
797	* - it is not delayed script
798	* and `application/ecmascript`
799	* Everything else should return false.
800	*
801	* @see https://developer.mozilla.org/en/docs/Web/HTML/Element/script#attr-type
802	*
803	* @param string $tag
804	*
805	* @return bool
806	*/
807	public function should_aggregate($tag)
808	{
809	// We're only interested in the type attribute of the <script> tag itself, not any possible
810	// inline code that might just contain the 'type=' string...
811	if (false !== strpos($tag, OptimizerScripts::TWO_NO_DELAYED_JS_ATTRIBUTE)) {
812	return false;
813	}
814	$tag_parts = [];
815	preg_match('#<(script[^>]*)>#i', $tag, $tag_parts);
816	$tag_without_contents = null;
817
818	if (!empty($tag_parts[1])) {
819	$tag_without_contents = $tag_parts[1];
820	}
821	$has_type = (strpos($tag_without_contents, 'type') !== false);
822	$type_valid = false;
823
824	if ($has_type) {
825	$type_valid = (bool) preg_match('/type\s=\s[\'"]?(?:text\|application)\/(?:javascript\|ecmascript)[\'"]?/i', $tag_without_contents);
826	}
827	$should_aggregate = false;
828
829	if (!$has_type \|\| $type_valid) {
830	$should_aggregate = true;
831	}
832
833	return $should_aggregate;
834	}
835
836	//Joins and optimizes JS
837	public function optimize()
838	{
839	$two_change_minify = $this->TwoSettings->get_settings('two_change_minify');
840
841	if (!empty($this->scripts)) {
842	foreach ($this->scripts as $hash => $script) {
843	if (preg_match('#^INLINE;#', $script)) {
844	// Inline script
845	$script = preg_replace('#^INLINE;#', '', $script);
846	$script = rtrim($script, ";\n\t\r") . ';';
847
848	// phpcs:ignore Squiz.PHP.CommentedOutCode.Found
849	// Add try catch
850	if ($this->trycatch) {
851	$script = 'try{' . $script . '}catch(e){}';
852	}
853	$tmpscript = $this->js_snippetcacher($script, '', $hash);
854
855	if (!empty($tmpscript)) {
856	$script = $tmpscript;
857	$this->alreadyminified = true;
858	}
859	$this->jscode .= "\n" . $script;
860	$this->hashes[] = $hash;
861	} else {
862	// External script
863	if (false !== $script && file_exists($script) && is_readable($script)) {
864	$scriptsrc = file_get_contents($script); // phpcs:ignore
865	$scriptsrc = preg_replace('/\x{EF}\x{BB}\x{BF}/', '', $scriptsrc);
866	$scriptsrc = rtrim($scriptsrc, ";\n\t\r") . ';';
867
868	// phpcs:ignore Squiz.PHP.CommentedOutCode.Found
869	// Add try catch
870	if ($this->trycatch) {
871	$scriptsrc = 'try{' . $scriptsrc . '}catch(e){}';
872	}
873	$tmpscriptsrc = $this->js_snippetcacher($scriptsrc, '', $hash);
874
875	if (!empty($tmpscriptsrc)) {
876	$scriptsrc = $tmpscriptsrc;
877	$this->alreadyminified = true;
878	} else {
879	if ($this->can_inject_late($script)) {
880	$scriptsrc = self::build_injectlater_marker($script, md5($scriptsrc));
881	}
882	}
883	$this->jscode .= "\n" . $scriptsrc;
884	$this->hashes[] = $hash;
885	}
886	}
887	}
888	}
889
890	// Check for already-minified code
891	$this->md5hash = md5($this->jscode);
892
893	if (true !== $this->alreadyminified) {
894	if ($two_change_minify == false \|\| $two_change_minify == 'JSMin') {
895	try {
896	$tmp_jscode = trim(JSMin::minify($this->jscode));
897	} catch (Exception $e) {
898	$tmp_jscode = $this->jscode;
899	}
900	} else {
901	$minifier = new JS($this->jscode);
902	$tmp_jscode = $minifier->minify();
903	}
904
905	if (!empty($tmp_jscode)) {
906	$this->jscode = $tmp_jscode;
907	unset($tmp_jscode);
908	}
909	$this->jscode = $this->inject_minified($this->jscode);
910
911	return true;
912	}
913
914	return true;
915	}
916
917	// Caches the JS in uncompressed, deflated and gzipped form.
918	public function cache()
919	{
920	$cache = new OptimizerCache(null, 'js');
921
922	if (!empty($this->jscode)) {
923	// Cache our code
924	$cache->cache($this->jscode, 'text/javascript');
925	}
926	$this->url = TWO_CACHE_URL . $cache->getname();
927	$this->url = $this->url_replace_cdn($this->url);
928	}
929
930	// Returns the content
931	public function getcontent()
932	{
933	// Restore the full content
934	if (!empty($this->restofcontent)) {
935	$this->content .= $this->restofcontent;
936	$this->restofcontent = '';
937	}
938
939	// Add the scripts taking forcehead/ deferred (default) into account
940	if ($this->forcehead) {
941	$replaceTag = [ '</head>', 'before' ];
942	$defer = '';
943	} else {
944	$replaceTag = [ '</body>', 'before' ];
945	$defer = 'defer ';
946	}
947
948	$bodyreplacementpayload = '<script type="text/javascript" ' . $defer . 'src="' . $this->url . '"></script>';
949	$bodyreplacement = implode('', $this->move['first']);
950	$bodyreplacement .= $bodyreplacementpayload;
951	$bodyreplacement .= implode('', $this->move['last']);
952
953	if (strlen($this->jscode) > 0) {
954	$this->content = OptimizerUtils::inject_in_html($this->content, $bodyreplacement, $replaceTag);
955	$this->cacheStructure->addToTagsToAdd($bodyreplacement, $replaceTag);
956	}
957	// Restore comments.
958	$this->content = $this->restore_comments($this->content);
959	// Restore IE hacks.
960	$this->content = $this->restore_iehacks($this->content);
961	// Restore noptimize.
962	$this->content = $this->restore_noptimize($this->content);
963
964	if (!empty($this->two_js_list) && $this->delay_all_js_execution) {
965	$two_events_after_load = $this->TwoSettings->get_settings('two_events_after_load', []);
966	$dispatchEvents = '';
967
968	if (is_array($two_events_after_load)) {
969	if (in_array('DOMContentLoaded', $two_events_after_load)) {
970	$dispatchEvents .= 'console.log("Dispatching DOMContentLoaded event");';
971	$dispatchEvents .= 'document.dispatchEvent(new Event("DOMContentLoaded"));';
972	}
973
974	if (in_array('Load', $two_events_after_load)) {
975	$dispatchEvents .= 'console.log("Dispatching Load event");';
976	$dispatchEvents .= 'window.dispatchEvent(new Event("load"));';
977	}
978
979	if (in_array('Click', $two_events_after_load)) {
980	$dispatchEvents .= 'console.log("Dispatching ClickOrTouch event");';
981	$dispatchEvents .= 'two_loading_events(two_event);';
982	}
983	}
984
985	$this->two_js_list[] = [
986	'code' => base64_encode('
987
988	if (window.two_page_loaded) {
989	console.log("dispatching events");' .
990	$dispatchEvents . '
991	}
992	else {
993	console.log("waiting for page to load");
994	window.addEventListener("load", function() {
995	console.log("dispatching events");
996	document.dispatchEvent(new Event("DOMContentLoaded"));
997	});
998	}
999	'),
1000	'inline' => true,
1001	'uid' => 'two_dispatchEvent_script',
1002	];
1003	}
1004	$two_dispatchEvent_script = '<script data-two_delay_id="two_dispatchEvent_script"></script>';
1005	// phpcs:ignore Squiz.PHP.CommentedOutCode.Found
1006	$this->content = OptimizerUtils::inject_in_html($this->content, $two_dispatchEvent_script, [ '</body>', 'before' ]);
1007	$this->cacheStructure->addToTagsToAdd($two_dispatchEvent_script, [ '</body>', 'before' ]);
1008
1009	// Return the modified HTML.
1010	return $this->content;
1011	}
1012
1013	// Checks against the white- and blacklists
1014	private function ismergeable($tag)
1015	{
1016	if (!$this->aggregate) {
1017	return false;
1018	}
1019
1020	if (!empty($this->whitelist)) {
1021	foreach ($this->whitelist as $match) {
1022	if (false !== strpos($tag, $match)) {
1023	return true;
1024	}
1025	}
1026
1027	// no match with whitelist
1028	return false;
1029	} else {
1030	foreach ($this->domove as $match) {
1031	if (false !== strpos($tag, $match)) {
1032	// Matched something
1033	return false;
1034	}
1035	}
1036
1037	if ($this->movetolast($tag)) {
1038	return false;
1039	}
1040
1041	foreach ($this->dontmove as $match) {
1042	if (false !== strpos($tag, $match)) {
1043	// Matched something
1044	return false;
1045	}
1046	}
1047
1048	// If we're here it's safe to merge
1049	return true;
1050	}
1051	}
1052
1053	// Checks agains the blacklist
1054	private function ismovable($tag)
1055	{
1056	if (true !== $this->include_inline) {
1057	return false;
1058	}
1059
1060	foreach ($this->domove as $match) {
1061	if (false !== strpos($tag, $match)) {
1062	// Matched something
1063	return true;
1064	}
1065	}
1066
1067	if ($this->movetolast($tag)) {
1068	return true;
1069	}
1070
1071	foreach ($this->dontmove as $match) {
1072	if (false !== strpos($tag, $match)) {
1073	// Matched something
1074	return false;
1075	}
1076	}
1077
1078	// If we're here it's safe to move
1079	return true;
1080	}
1081
1082	private function movetolast($tag)
1083	{
1084	foreach ($this->domovelast as $match) {
1085	if (false !== strpos($tag, $match)) {
1086	// Matched. return true
1087	return true;
1088	}
1089	}
1090
1091	// Should be in 'first'
1092	return false;
1093	}
1094
1095	/**
1096	* Determines wheter a <script> $tag can be excluded from minification (as already minified) based on:
1097	* - inject_min_late being active
1098	* - filename ending in `min.js`
1099	* - filename matching `js/jquery/jquery.js` (wordpress core jquery, is minified)
1100	* - filename matching one passed in the consider minified filter
1101	*
1102	* @param string $jsPath
1103	*
1104	* @return bool
1105	*/
1106	private function can_inject_late($jsPath)
1107	{
1108	$consider_minified_array = false;
1109
1110	if (true !== $this->inject_min_late) {
1111	// late-inject turned off
1112	return false;
1113	} else {
1114	if ((false === strpos($jsPath, 'min.js')) && (false === strpos($jsPath, 'wp-includes/js/jquery/jquery.js')) && (str_replace($consider_minified_array, '', $jsPath) === $jsPath)) {
1115	// file not minified based on filename & filter
1116	return false;
1117	} else {
1118	// phew, all is safe, we can late-inject
1119	return true;
1120	}
1121	}
1122	}
1123
1124	/**
1125	* Minifies a single local js file and returns its (cached) url.
1126	*
1127	* @param string $filepath filepath
1128	* @param bool $cache_miss Optional. Force a cache miss. Default false.
1129	*
1130	* @return bool\|string url pointing to the minified js file or false
1131	*/
1132	public function minify_single($filepath, $cache_miss = false)
1133	{
1134	$two_change_minify = $this->TwoSettings->get_settings('two_change_minify');
1135	$contents = $this->prepare_minify_single($filepath);
1136
1137	if (empty($contents)) {
1138	return false;
1139	}
1140	// Check cache.
1141	$name_prefix = 'minified_' . str_replace('.js', '', basename($filepath));
1142	$cache = new OptimizerCache(null, 'js', 'all', $name_prefix);
1143
1144	if ($two_change_minify == false \|\| $two_change_minify == 'JSMin') {
1145	try {
1146	$contents = trim(JSMin::minify($contents));
1147	} catch (Exception $e) {
1148	$contents = $contents;
1149	}
1150	} else {
1151	$minifier = new JS($contents);
1152	$contents = $minifier->minify();
1153	}
1154	// Store in cache.
1155	$cache->cache($contents, 'text/javascript');
1156	$url = $this->build_minify_single_url($cache);
1157
1158	return $url;
1159	}
1160
1161	public function js_snippetcacher($jsin, $jsfilename, $hash)
1162	{
1163	$two_change_minify = $this->TwoSettings->get_settings('two_change_minify');
1164
1165	if ($two_change_minify == false \|\| $two_change_minify == 'JSMin') {
1166	try {
1167	$tmp_jscode = trim(JSMin::minify($jsin));
1168	} catch (Exception $e) {
1169	$tmp_jscode = $jsin;
1170	}
1171	} else {
1172	$minifier = new JS($jsin);
1173	$tmp_jscode = $minifier->minify();
1174	}
1175
1176	if (! empty($tmp_jscode)) {
1177	$scriptsrc = $tmp_jscode;
1178	unset($tmp_jscode);
1179	} else {
1180	$scriptsrc = $jsin;
1181	}
1182	$last_char = substr($scriptsrc, -1, 1);
1183
1184	if (';' !== $last_char && '}' !== $last_char) {
1185	$scriptsrc .= ';';
1186	}
1187
1188	return $scriptsrc;
1189	}
1190	}
1191