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Autoptimize / 0.3
Autoptimize v0.3
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← All changes | classes/autoptimizeScripts.php +154 -465 2.3.40.3 View file →
@@ -1,469 +1,158 @@
1 1 <?php
2 -if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
3 2
4 -class autoptimizeScripts extends autoptimizeBase {
5 - private $scripts = array();
6 - private $dontmove = array('document.write','html5.js','show_ads.js','google_ad','histats.com/js','statcounter.com/counter/counter.js','ws.amazon.com/widgets','media.fastclick.net','/ads/','comment-form-quicktags/quicktags.php','edToolbar','intensedebate.com','scripts.chitika.net/','_gaq.push','jotform.com/','admin-bar.min.js','GoogleAnalyticsObject','plupload.full.min.js','syntaxhighlighter','adsbygoogle','gist.github.com','_stq','nonce','post_id','data-noptimize','wordfence_logHuman');
7 - private $domove = array('gaJsHost','load_cmc','jd.gallery.transitions.js','swfobject.embedSWF(','tiny_mce.js','tinyMCEPreInit.go');
8 - private $domovelast = array('addthis.com','/afsonline/show_afs_search.js','disqus.js','networkedblogs.com/getnetworkwidget','infolinks.com/js/','jd.gallery.js.php','jd.gallery.transitions.js','swfobject.embedSWF(','linkwithin.com/widget.js','tiny_mce.js','tinyMCEPreInit.go');
9 - private $trycatch = false;
10 - private $alreadyminified = false;
11 - private $forcehead = true;
12 - private $include_inline = false;
13 - private $jscode = '';
14 - private $url = '';
15 - private $move = array('first' => array(), 'last' => array());
16 - private $restofcontent = '';
17 - private $md5hash = '';
18 - private $whitelist = '';
19 - private $jsremovables = array();
20 - private $inject_min_late = '';
21 -
22 - //Reads the page and collects script tags
23 - public function read($options) {
24 - $noptimizeJS = apply_filters( 'autoptimize_filter_js_noptimize', false, $this->content );
25 - if ($noptimizeJS) return false;
26 -
27 - // only optimize known good JS?
28 - $whitelistJS = apply_filters( 'autoptimize_filter_js_whitelist', '', $this->content );
29 - if (!empty($whitelistJS)) {
30 - $this->whitelist = array_filter(array_map('trim',explode(",",$whitelistJS)));
31 - }
32 -
33 - // is there JS we should simply remove
34 - $removableJS = apply_filters( 'autoptimize_filter_js_removables', '', $this->content );
35 - if (!empty($removableJS)) {
36 - $this->jsremovables = array_filter(array_map('trim',explode(",",$removableJS)));
37 - }
38 -
39 - // only header?
40 - if( apply_filters('autoptimize_filter_js_justhead', $options['justhead']) == true ) {
41 - $content = explode('</head>',$this->content,2);
42 - $this->content = $content[0].'</head>';
43 - $this->restofcontent = $content[1];
44 - }
45 -
46 - // include inline?
47 - if( apply_filters('autoptimize_js_include_inline', $options['include_inline']) == true ) {
48 - $this->include_inline = true;
49 - }
50 -
51 - // filter to "late inject minified JS", default to true for now (it is faster)
52 - $this->inject_min_late = apply_filters('autoptimize_filter_js_inject_min_late',true);
53 -
54 - // filters to override hardcoded do(nt)move(last) array contents (array in, array out!)
55 - $this->dontmove = apply_filters( 'autoptimize_filter_js_dontmove', $this->dontmove );
56 - $this->domovelast = apply_filters( 'autoptimize_filter_js_movelast', $this->domovelast );
57 - $this->domove = apply_filters( 'autoptimize_filter_js_domove', $this->domove );
58 -
59 - // get extra exclusions settings or filter
60 - $excludeJS = $options['js_exclude'];
61 - $excludeJS = apply_filters( 'autoptimize_filter_js_exclude', $excludeJS, $this->content );
62 - if ($excludeJS!=="") {
63 - if (is_array($excludeJS)) {
64 - if(($removeKeys = array_keys($excludeJS,"remove")) !== false) {
65 - foreach ($removeKeys as $removeKey) {
66 - unset($excludeJS[$removeKey]);
67 - $this->jsremovables[]=$removeKey;
68 - }
69 - }
70 - $exclJSArr = array_keys($excludeJS);
71 - } else {
72 - $exclJSArr = array_filter(array_map('trim',explode(",",$excludeJS)));
73 - }
74 - $this->dontmove = array_merge($exclJSArr,$this->dontmove);
75 - }
76 -
77 - //Should we add try-catch?
78 - if($options['trycatch'] == true)
79 - $this->trycatch = true;
80 -
81 - // force js in head?
82 - if($options['forcehead'] == true) {
83 - $this->forcehead = true;
84 - } else {
85 - $this->forcehead = false;
86 - }
87 - $this->forcehead = apply_filters( 'autoptimize_filter_js_forcehead', $this->forcehead );
88 -
89 - // get cdn url
90 - $this->cdn_url = $options['cdn_url'];
91 -
92 - // noptimize me
93 - $this->content = $this->hide_noptimize($this->content);
94 -
95 - // Save IE hacks
96 - $this->content = $this->hide_iehacks($this->content);
97 -
98 - // comments
99 - $this->content = $this->hide_comments($this->content);
100 -
101 - // Get script files
102 - if (preg_match_all('#<script.*</script>#Usmi',$this->content,$matches)) {
103 - foreach($matches[0] as $tag) {
104 - // only consider script aggregation for types whitelisted in should_aggregate-function
105 - if( !$this->should_aggregate($tag) ) {
106 - $tag='';
107 - continue;
108 - }
109 -
110 - if (preg_match('#<script[^>]*src=("|\')([^>]*)("|\')#Usmi',$tag,$source)) {
111 - // non-inline script
112 - if ($this->isremovable($tag,$this->jsremovables)) {
113 - $this->content = str_replace($tag,'',$this->content);
114 - continue;
115 - }
116 - $explUrl = explode('?',$source[2],2);
117 - $url = $explUrl[0];
118 - $path = $this->getpath($url);
119 - if($path !== false && preg_match('#\.js$#',$path) && $this->ismergeable($tag)) {
120 - // ok to optimize, add to array
121 - $this->scripts[] = $path;
122 - } else {
123 - $origTag = $tag;
124 - $newTag = $tag;
125 -
126 - // non-mergeable script (excluded or dynamic or external)
127 - if (is_array($excludeJS)) {
128 - // should we add flags?
129 - foreach ($excludeJS as $exclTag => $exclFlags) {
130 - if ( strpos($origTag,$exclTag)!==false && in_array($exclFlags,array("async","defer")) ) {
131 - $newTag = str_replace('<script ','<script '.$exclFlags.' ',$newTag);
132 - }
133 - }
134 - }
135 -
136 - // should we minify the non-aggregated script?
137 - if ($path && apply_filters('autoptimize_filter_js_minify_excluded',false)) {
138 - $_CachedMinifiedUrl = $this->minify_single($path);
139 -
140 - // replace orig URL with minified URL from cache if so
141 - if (!empty($_CachedMinifiedUrl)) {
142 - $newTag = str_replace($url, $_CachedMinifiedUrl, $newTag);
143 - }
144 -
145 - // remove querystring from URL in newTag
146 - if ( !empty($explUrl[1]) ) {
147 - $newTag = str_replace("?".$explUrl[1],"",$newTag);
148 - }
3 +class autoptimizeScripts extends autoptimizeBase
4 +{
5 + private $scripts = array();
6 + private $dontmove = array('document.write','google_ad_client','show_ads.js');
7 + private $domove = array('gaJsHost');
8 + private $jscode = '';
9 + private $url = '';
10 + private $move = array();
11 +
12 + //Reads the page and collects script tags
13 + public function read()
14 + {
15 + //Get script files
16 + if(preg_match_all('#<script.*</script>#Usmi',$this->content,$matches))
17 + {
18 + foreach($matches[0] as $tag)
19 + {
20 + if(preg_match('#src=("|\')(.*)("|\')#Usmi',$tag,$source))
21 + {
22 + //External script
23 + $url = current(explode('?',$source[2],2));
24 + $path = $this->getpath($url);
25 + if($path !==false && preg_match('#\.js$#',$path))
26 + {
27 + //Good script
28 + $this->scripts[] = $path;
29 + }else{
30 + //External script (example: google analytics)
31 + //OR Script is dynamic (.php etc)
32 + if($this->ismovable($tag))
33 + {
34 + $this->move[] = $tag;
149 35 }
150 -
151 - // should we move the non-aggregated script?
152 - if( $this->ismovable($newTag) ) {
153 - // can be moved, flags and all
154 - if( $this->movetolast($newTag) ) {
155 - $this->move['last'][] = $newTag;
156 - } else {
157 - $this->move['first'][] = $newTag;
158 - }
159 - } else {
160 - // cannot be moved, so if flag was added re-inject altered tag immediately
161 - if ( $origTag !== $newTag ) {
162 - $this->content = str_replace($origTag,$newTag,$this->content);
163 - $origTag = '';
164 - }
165 - // and forget about the $tag (not to be touched any more)
166 - $tag = '';
167 - }
168 - }
169 - } else {
170 - // Inline script
171 - if ($this->isremovable($tag,$this->jsremovables)) {
172 - $this->content = str_replace($tag,'',$this->content);
173 - continue;
174 - }
175 -
176 - // unhide comments, as javascript may be wrapped in comment-tags for old times' sake
177 - $tag = $this->restore_comments($tag);
178 - if($this->ismergeable($tag) && ( $this->include_inline )) {
179 - preg_match('#<script.*>(.*)</script>#Usmi',$tag,$code);
180 - $code = preg_replace('#.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*#sm','$1',$code[1]);
181 - $code = preg_replace('/(?:^\\s*<!--\\s*|\\s*(?:\\/\\/)?\\s*-->\\s*$)/','',$code);
182 - $this->scripts[] = 'INLINE;'.$code;
183 - } else {
184 - // Can we move this?
185 - $autoptimize_js_moveable = apply_filters( 'autoptimize_js_moveable', '', $tag );
186 - if( $this->ismovable($tag) || $autoptimize_js_moveable !== '' ) {
187 - if( $this->movetolast($tag) || $autoptimize_js_moveable === 'last' ) {
188 - $this->move['last'][] = $tag;
189 - } else {
190 - $this->move['first'][] = $tag;
191 - }
192 - } else {
193 - //We shouldn't touch this
194 - $tag = '';
195 - }
196 - }
197 - // re-hide comments to be able to do the removal based on tag from $this->content
198 - $tag = $this->hide_comments($tag);
199 - }
200 -
201 - //Remove the original script tag
202 - $this->content = str_replace($tag,'',$this->content);
203 - }
204 -
205 - return true;
206 - }
207 -
208 - // No script files, great ;-)
209 - return false;
210 - }
211 -
212 - //Joins and optimizes JS
213 - public function minify() {
214 - foreach($this->scripts as $script) {
215 - if(preg_match('#^INLINE;#',$script)) {
216 - //Inline script
217 - $script = preg_replace('#^INLINE;#','',$script);
218 - $script = rtrim( $script, ";\n\t\r" ) . ';';
219 - //Add try-catch?
220 - if($this->trycatch) {
221 - $script = 'try{'.$script.'}catch(e){}';
222 - }
223 - $tmpscript = apply_filters( 'autoptimize_js_individual_script', $script, '' );
224 - if ( has_filter('autoptimize_js_individual_script') && !empty($tmpscript) ) {
225 - $script=$tmpscript;
226 - $this->alreadyminified=true;
227 - }
228 - $this->jscode .= "\n" . $script;
229 - } else {
230 - //External script
231 - if($script !== false && file_exists($script) && is_readable($script)) {
232 - $scriptsrc = file_get_contents($script);
233 - $scripthash = md5($scriptsrc);
234 - $scriptsrc = preg_replace('/\x{EF}\x{BB}\x{BF}/','',$scriptsrc);
235 - $scriptsrc = rtrim($scriptsrc,";\n\t\r").';';
236 -
237 - //Add try-catch?
238 - if($this->trycatch) {
239 - $scriptsrc = 'try{'.$scriptsrc.'}catch(e){}';
240 - }
241 - $tmpscriptsrc = apply_filters( 'autoptimize_js_individual_script', $scriptsrc, $script );
242 - if ( has_filter('autoptimize_js_individual_script') && !empty($tmpscriptsrc) ) {
243 - $scriptsrc=$tmpscriptsrc;
244 - $this->alreadyminified=true;
245 - } else if ($this->can_inject_late($script)) {
246 - $scriptsrc="/*!%%INJECTLATER".AUTOPTIMIZE_HASH."%%".base64_encode($script)."|".$scripthash."%%INJECTLATER%%*/";
247 - }
248 - $this->jscode .= "\n".$scriptsrc;
249 - }/*else{
250 - //Couldn't read JS. Maybe getpath isn't working?
251 - }*/
252 - }
253 - }
254 -
255 - //Check for already-minified code
256 - $this->md5hash = md5($this->jscode);
257 - $ccheck = new autoptimizeCache($this->md5hash,'js');
258 - if($ccheck->check()) {
259 - $this->jscode = $ccheck->retrieve();
260 - return true;
261 - }
262 - unset($ccheck);
263 -
264 - //$this->jscode has all the uncompressed code now.
265 - if ($this->alreadyminified!==true) {
266 - if (class_exists('JSMin') && apply_filters( 'autoptimize_js_do_minify' , true)) {
267 - if (@is_callable(array("JSMin","minify"))) {
268 - $tmp_jscode = trim(JSMin::minify($this->jscode));
269 - if (!empty($tmp_jscode)) {
270 - $this->jscode = $tmp_jscode;
271 - unset($tmp_jscode);
272 - }
273 - $this->jscode = $this->inject_minified($this->jscode);
274 - $this->jscode = apply_filters( 'autoptimize_js_after_minify', $this->jscode );
275 - return true;
276 - } else {
277 - $this->jscode = $this->inject_minified($this->jscode);
278 - return false;
279 - }
280 - } else {
281 - $this->jscode = $this->inject_minified($this->jscode);
282 - return false;
283 - }
284 - }
285 - $this->jscode = apply_filters( 'autoptimize_js_after_minify', $this->jscode );
286 - return true;
287 - }
288 -
289 - //Caches the JS in uncompressed, deflated and gzipped form.
290 - public function cache() {
291 - $cache = new autoptimizeCache($this->md5hash,'js');
292 - if(!$cache->check()) {
293 - //Cache our code
294 - $cache->cache($this->jscode,'text/javascript');
295 - }
296 - $this->url = AUTOPTIMIZE_CACHE_URL.$cache->getname();
297 - $this->url = $this->url_replace_cdn($this->url);
298 - }
299 -
300 - // Returns the content
301 - public function getcontent() {
302 - // Restore the full content
303 - if(!empty($this->restofcontent)) {
304 - $this->content .= $this->restofcontent;
305 - $this->restofcontent = '';
306 - }
307 -
308 - // Add the scripts taking forcehead/ deferred (default) into account
309 - if($this->forcehead == true) {
310 - $replaceTag=array("</head>","before");
311 - $defer="";
312 - } else {
313 - $replaceTag=array("</body>","before");
314 - $defer="defer ";
315 - }
316 -
317 - $defer = apply_filters( 'autoptimize_filter_js_defer', $defer );
318 - $bodyreplacementpayload = '<script type="text/javascript" '.$defer.'src="'.$this->url.'"></script>';
319 - $bodyreplacementpayload = apply_filters('autoptimize_filter_js_bodyreplacementpayload',$bodyreplacementpayload);
320 -
321 - $bodyreplacement = implode('',$this->move['first']);
322 - $bodyreplacement .= $bodyreplacementpayload;
323 - $bodyreplacement .= implode('',$this->move['last']);
324 -
325 - $replaceTag = apply_filters( 'autoptimize_filter_js_replacetag', $replaceTag );
326 -
327 - if (strlen($this->jscode)>0) {
328 - $this->inject_in_html($bodyreplacement,$replaceTag);
329 - }
330 -
331 - // restore comments
332 - $this->content = $this->restore_comments($this->content);
333 -
334 - // Restore IE hacks
335 - $this->content = $this->restore_iehacks($this->content);
336 -
337 - // Restore noptimize
338 - $this->content = $this->restore_noptimize($this->content);
339 -
340 - // Return the modified HTML
341 - return $this->content;
342 - }
343 -
344 - // Checks against the white- and blacklists
345 - private function ismergeable($tag) {
346 - if (apply_filters('autoptimize_filter_js_dontaggregate',false)) {
347 - return false;
348 - } else if (!empty($this->whitelist)) {
349 - foreach ($this->whitelist as $match) {
350 - if(strpos($tag,$match)!==false) {
351 - return true;
352 - }
353 - }
354 - // no match with whitelist
355 - return false;
356 - } else {
357 - foreach($this->domove as $match) {
358 - if(strpos($tag,$match)!==false) {
359 - // Matched something
360 - return false;
361 - }
362 - }
363 -
364 - if ($this->movetolast($tag)) {
365 - return false;
366 - }
367 -
368 - foreach($this->dontmove as $match) {
369 - if(strpos($tag,$match)!==false) {
370 - //Matched something
371 - return false;
372 - }
373 - }
374 -
375 - // If we're here it's safe to merge
376 - return true;
377 - }
378 - }
379 -
380 - // Checks againstt the blacklist
381 - private function ismovable($tag) {
382 - if ($this->include_inline !== true || apply_filters('autoptimize_filter_js_unmovable',true)) {
383 - return false;
384 - }
385 -
386 - foreach($this->domove as $match) {
387 - if(strpos($tag,$match)!==false) {
388 - // Matched something
389 - return true;
390 - }
391 - }
392 -
393 - if ($this->movetolast($tag)) {
394 - return true;
395 - }
396 -
397 - foreach($this->dontmove as $match) {
398 - if(strpos($tag,$match)!==false) {
399 - // Matched something
400 - return false;
401 - }
402 - }
403 -
404 - // If we're here it's safe to move
405 - return true;
406 - }
407 -
408 - private function movetolast($tag) {
409 - foreach($this->domovelast as $match) {
410 - if(strpos($tag,$match)!==false) {
411 - // Matched, return true
412 - return true;
413 - }
414 - }
415 -
416 - // Should be in 'first'
417 - return false;
418 - }
419 -
420 - /**
421 - * Determines wheter a <script> $tag should be aggregated or not.
422 - *
423 - * We consider these as "aggregation-safe" currently:
424 - * - script tags without a `type` attribute
425 - * - script tags with an explicit `type` of `text/javascript`, 'text/ecmascript',
426 - * 'application/javascript' or 'application/ecmascript'
427 - *
428 - * Everything else should return false.
429 - *
430 - * @param string $tag
431 - * @return bool
432 - *
433 - * original function by https://github.com/zytzagoo/ on his AO fork, thanks Tomas!
434 - */
435 - public function should_aggregate($tag) {
436 - preg_match('#<(script[^>]*)>#i',$tag,$scripttag);
437 - if ( strpos($scripttag[1], 'type')===false ) {
438 - return true;
439 - } else if ( preg_match('/type\s*=\s*["\']?(?:text|application)\/(?:javascript|ecmascript)["\']?/i', $scripttag[1]) ) {
440 - return true;
441 - } else {
442 - return false;
443 - }
444 - }
445 -
446 - /**
447 - * Determines wheter a <script> $tag can be excluded from minification (as already minified) based on:
448 - * - inject_min_late being active
449 - * - filename ending in `min.js`
450 - * - filename matching `js/jquery/jquery.js` (wordpress core jquery, is minified)
451 - * - filename matching one passed in the consider minified filter
452 - *
453 - * @param string $jsPath
454 - * @return bool
455 - */
456 - private function can_inject_late($jsPath) {
457 - $consider_minified_array = apply_filters('autoptimize_filter_js_consider_minified',false);
458 - if ( $this->inject_min_late !== true ) {
459 - // late-inject turned off
460 - return false;
461 - } else if ( (strpos($jsPath,"min.js") === false) && ( strpos($jsPath,"wp-includes/js/jquery/jquery.js") === false ) && ( str_replace($consider_minified_array, '', $jsPath) === $jsPath ) ) {
462 - // file not minified based on filename & filter
463 - return false;
464 - } else {
465 - // phew, all is safe, we can late-inject
466 - return true;
467 - }
468 - }
36 + }
37 + }else{
38 + //Inline script
39 + if($this->ismergeable($tag))
40 + {
41 + preg_match('#<script.*>(.*)</script>#Usmi',$tag,$code);
42 + $code = preg_replace('#.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*#sm','$1',$code[1]);
43 + $code = preg_replace('/(?:^\\s*<!--\\s*|\\s*(?:\\/\\/)?\\s*-->\\s*$)/','',$code);
44 + $this->scripts[] = 'INLINE;'.$code;
45 + }else{
46 + //Can we move this?
47 + if($this->ismovable($tag))
48 + {
49 + $this->move[] = $tag;
50 + }/*else{
51 + //We shouldn't touch this
52 + }*/
53 + }
54 + }
55 +
56 + //Remove the original script tag
57 + $this->content = str_replace($tag,'',$this->content);
58 + }
59 +
60 + return true;
61 + }
62 +
63 + //No script files :(
64 + return false;
65 + }
66 +
67 + //Joins and optimizes JS
68 + public function minify()
69 + {
70 + foreach($this->scripts as $script)
71 + {
72 + if(preg_match('#^INLINE;#',$script))
73 + {
74 + //Inline script
75 + $script = preg_replace('#^INLINE;#','',$script);
76 + $this->jscode .= "\n".$script;
77 + }else{
78 + //External script
79 + if($script !== false && file_exists($script) && is_readable($script))
80 + {
81 + $script = file_get_contents($script);
82 + $this->jscode .= "\n".$script;
83 + }/*else{
84 + //Couldn't read JS. Maybe getpath isn't working?
85 + }*/
86 + }
87 + }
88 +
89 + //$this->jscode has all the uncompressed code now.
90 + if(class_exists('JSMin'))
91 + {
92 + $this->jscode = trim(JSMin::minify($this->jscode));
93 + return true;
94 + }
95 +
96 + return false;
97 + }
98 +
99 + //Caches the JS in uncompressed, deflated and gzipped form.
100 + public function cache()
101 + {
102 + $md5 = md5($this->jscode);
103 + $cache = new autopimizeCache(WP_PLUGIN_DIR.'/autoptimize/cache/',$md5);
104 + if(!$cache->check())
105 + {
106 + //Cache our code
107 + $cache->cache($this->jscode,'text/javascript');
108 + }
109 + $this->url = WP_PLUGIN_URL.'/autoptimize/cache/'.$cache->getname();
110 + }
111 +
112 + //Returns the content
113 + public function getcontent()
114 + {
115 + $bodyreplacement = implode('',$this->move).'<script type="text/javascript" src="'.$this->url.'"></script></body>';
116 + $this->content = str_replace('</body>',$bodyreplacement,$this->content);
117 + return $this->content;
118 + }
119 +
120 + //Checks agains the whitelist
121 + private function ismergeable($tag)
122 + {
123 + foreach($this->domove as $match)
124 + {
125 + if(strpos($tag,$match)!==false)
126 + {
127 + //Matched something
128 + return false;
129 + }
130 + }
131 +
132 + //If we're here it's safe to merge
133 + return true;
134 + }
135 +
136 + //Checks agains the blacklist
137 + private function ismovable($tag)
138 + {
139 + $allowed = !$this->ismergeable($tag);
140 +
141 + if($allowed == true)
142 + {
143 + return true;
144 + }
145 +
146 + foreach($this->dontmove as $match)
147 + {
148 + if(strpos($tag,$match)!==false)
149 + {
150 + //Matched something
151 + return false;
152 + }
153 + }
154 +
155 + //If we're here it's safe to move
156 + return true;
157 + }
469 158 }