| 1 |
<?php |
| 2 |
|
| 3 |
if ( ! defined( 'ABSPATH' ) ) { |
| 4 |
exit; |
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} |
| 6 |
|
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class autoptimizeScripts extends autoptimizeBase |
| 8 |
{ |
| 9 |
private $scripts = array(); |
| 10 |
private $move = array( |
| 11 |
'first' => array(), |
| 12 |
'last' => array() |
| 13 |
); |
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|
| 15 |
private $dontmove = array( |
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'document.write','html5.js','show_ads.js','google_ad','histats.com/js','statcounter.com/counter/counter.js', |
| 17 |
'ws.amazon.com/widgets','media.fastclick.net','/ads/','comment-form-quicktags/quicktags.php','edToolbar', |
| 18 |
'intensedebate.com','scripts.chitika.net/','_gaq.push','jotform.com/','admin-bar.min.js','GoogleAnalyticsObject', |
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'plupload.full.min.js','syntaxhighlighter','adsbygoogle','gist.github.com','_stq','nonce','post_id','data-noptimize' |
| 20 |
,'logHuman' |
| 21 |
); |
| 22 |
private $domove = array( |
| 23 |
'gaJsHost','load_cmc','jd.gallery.transitions.js','swfobject.embedSWF(','tiny_mce.js','tinyMCEPreInit.go' |
| 24 |
); |
| 25 |
private $domovelast = array( |
| 26 |
'addthis.com','/afsonline/show_afs_search.js','disqus.js','networkedblogs.com/getnetworkwidget','infolinks.com/js/', |
| 27 |
'jd.gallery.js.php','jd.gallery.transitions.js','swfobject.embedSWF(','linkwithin.com/widget.js','tiny_mce.js','tinyMCEPreInit.go' |
| 28 |
); |
| 29 |
public $cdn_url = ''; |
| 30 |
|
| 31 |
private $aggregate = true; |
| 32 |
private $trycatch = false; |
| 33 |
private $alreadyminified = false; |
| 34 |
private $forcehead = true; |
| 35 |
private $include_inline = false; |
| 36 |
private $jscode = ''; |
| 37 |
private $url = ''; |
| 38 |
private $restofcontent = ''; |
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private $md5hash = ''; |
| 40 |
private $whitelist = ''; |
| 41 |
private $jsremovables = array(); |
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private $inject_min_late = ''; |
| 43 |
private $minify_excluded = true; |
| 44 |
|
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// Reads the page and collects script tags. |
| 46 |
public function read( $options ) |
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{ |
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$noptimizeJS = apply_filters( 'autoptimize_filter_js_noptimize', false, $this->content ); |
| 49 |
if ( $noptimizeJS ) { |
| 50 |
return false; |
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} |
| 52 |
|
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// only optimize known good JS? |
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$whitelistJS = apply_filters( 'autoptimize_filter_js_whitelist', '', $this->content ); |
| 55 |
if ( ! empty( $whitelistJS ) ) { |
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$this->whitelist = array_filter( array_map( 'trim', explode( ',', $whitelistJS ) ) ); |
| 57 |
} |
| 58 |
|
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// is there JS we should simply remove? |
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$removableJS = apply_filters( 'autoptimize_filter_js_removables', '', $this->content ); |
| 61 |
if ( !empty( $removableJS ) ) { |
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$this->jsremovables = array_filter( array_map( 'trim', explode( ',', $removableJS ) ) ); |
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} |
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|
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// only header? |
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if ( apply_filters( 'autoptimize_filter_js_justhead', $options['justhead'] ) ) { |
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$content = explode( '</head>', $this->content, 2 ); |
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$this->content = $content[0] . '</head>'; |
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$this->restofcontent = $content[1]; |
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} |
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|
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// Determine whether we're doing JS-files aggregation or not. |
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if ( ! $options['aggregate'] ) { |
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$this->aggregate = false; |
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} |
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// Returning true for "dontaggregate" turns off aggregation. |
| 77 |
if ( $this->aggregate && apply_filters( 'autoptimize_filter_js_dontaggregate', false ) ) { |
| 78 |
$this->aggregate = false; |
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} |
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|
| 81 |
// include inline? |
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if ( apply_filters( 'autoptimize_js_include_inline', $options['include_inline'] ) ) { |
| 83 |
$this->include_inline = true; |
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} |
| 85 |
|
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// filter to "late inject minified JS", default to true for now (it is faster). |
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$this->inject_min_late = apply_filters( 'autoptimize_filter_js_inject_min_late', true ); |
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|
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// filters to override hardcoded do(nt)move(last) array contents (array in, array out!). |
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$this->dontmove = apply_filters( 'autoptimize_filter_js_dontmove', $this->dontmove ); |
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$this->domovelast = apply_filters( 'autoptimize_filter_js_movelast', $this->domovelast ); |
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$this->domove = apply_filters( 'autoptimize_filter_js_domove', $this->domove ); |
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|
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// Determine whether excluded files should be minified if not yet so. |
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if ( ! $options['minify_excluded'] && $options['aggregate'] ) { |
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$this->minify_excluded = false; |
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} |
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$this->minify_excluded = apply_filters( 'autoptimize_filter_js_minify_excluded', $this->minify_excluded ); |
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|
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// get extra exclusions settings or filter. |
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$excludeJS = $options['js_exclude']; |
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$excludeJS = apply_filters( 'autoptimize_filter_js_exclude', $excludeJS, $this->content ); |
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|
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if ( '' !== $excludeJS ) { |
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if ( is_array( $excludeJS ) ) { |
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if ( ( $removeKeys = array_keys( $excludeJS, 'remove' ) ) !== false ) { |
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foreach ( $removeKeys as $removeKey ) { |
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unset( $excludeJS[$removeKey] ); |
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$this->jsremovables[] = $removeKey; |
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} |
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} |
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$exclJSArr = array_keys( $excludeJS ); |
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} else { |
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$exclJSArr = array_filter( array_map( 'trim', explode( ',', $excludeJS ) ) ); |
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} |
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$this->dontmove = array_merge( $exclJSArr, $this->dontmove ); |
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} |
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|
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// Should we add try-catch? |
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if ( $options['trycatch'] ) { |
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$this->trycatch = true; |
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} |
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|
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// force js in head? |
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if ( $options['forcehead'] ) { |
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$this->forcehead = true; |
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} else { |
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$this->forcehead = false; |
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} |
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|
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$this->forcehead = apply_filters( 'autoptimize_filter_js_forcehead', $this->forcehead ); |
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|
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// get cdn url. |
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$this->cdn_url = $options['cdn_url']; |
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|
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// noptimize me. |
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$this->content = $this->hide_noptimize($this->content); |
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|
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// Save IE hacks. |
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$this->content = $this->hide_iehacks($this->content); |
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|
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// comments. |
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$this->content = $this->hide_comments($this->content); |
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|
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// Get script files. |
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if ( preg_match_all( '#<script.*</script>#Usmi', $this->content, $matches ) ) { |
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foreach( $matches[0] as $tag ) { |
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// only consider script aggregation for types whitelisted in should_aggregate-function. |
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$should_aggregate = $this->should_aggregate($tag); |
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if ( ! $should_aggregate ) { |
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$tag = ''; |
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continue; |
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} |
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|
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if ( preg_match( '#<script[^>]*src=("|\')([^>]*)("|\')#Usmi', $tag, $source ) ) { |
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// non-inline script. |
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if ( $this->isremovable($tag, $this->jsremovables) ) { |
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$this->content = str_replace( $tag, '', $this->content ); |
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continue; |
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} |
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|
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$origTag = null; |
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$url = current( explode( '?', $source[2], 2 ) ); |
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$path = $this->getpath($url); |
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if ( false !== $path && preg_match( '#\.js$#', $path ) && $this->ismergeable($tag) ) { |
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// ok to optimize, add to array. |
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$this->scripts[] = $path; |
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} else { |
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$origTag = $tag; |
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$newTag = $tag; |
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|
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// non-mergeable script (excluded or dynamic or external). |
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if ( is_array( $excludeJS ) ) { |
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// should we add flags? |
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foreach ( $excludeJS as $exclTag => $exclFlags) { |
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if ( false !== strpos( $origTag, $exclTag ) && in_array( $exclFlags, array( 'async', 'defer' ) ) ) { |
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$newTag = str_replace( '<script ', '<script ' . $exclFlags . ' ', $newTag ); |
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} |
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} |
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} |
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|
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// Should we minify the non-aggregated script? |
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// -> if aggregate is on and exclude minify is on |
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// -> if aggregate is off and the file is not in dontmove. |
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if ( $path && $this->minify_excluded ) { |
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$consider_minified_array = apply_filters( 'autoptimize_filter_js_consider_minified', false ); |
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if ( ( false === $this->aggregate && str_replace( $this->dontmove, '', $path ) === $path ) || ( true === $this->aggregate && ( false === $consider_minified_array || str_replace( $consider_minified_array, '', $path ) === $path ) ) ) { |
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$minified_url = $this->minify_single( $path ); |
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// replace orig URL with minified URL from cache if so. |
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if ( ! empty( $minified_url ) ) { |
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$newTag = str_replace( $url, $minified_url, $newTag ); |
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} |
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} |
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} |
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|
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if ( $this->ismovable($newTag) ) { |
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// can be moved, flags and all. |
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if ( $this->movetolast($newTag) ) { |
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$this->move['last'][] = $newTag; |
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} else { |
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$this->move['first'][] = $newTag; |
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} |
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} else { |
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// cannot be moved, so if flag was added re-inject altered tag immediately. |
| 205 |
if ( $origTag !== $newTag ) { |
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$this->content = str_replace( $origTag, $newTag, $this->content ); |
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$origTag = ''; |
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} |
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// and forget about the $tag (not to be touched any more). |
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$tag = ''; |
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} |
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} |
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} else { |
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// Inline script. |
| 215 |
if ( $this->isremovable($tag, $this->jsremovables) ) { |
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$this->content = str_replace( $tag, '', $this->content ); |
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continue; |
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} |
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|
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// unhide comments, as javascript may be wrapped in comment-tags for old times' sake. |
| 221 |
$tag = $this->restore_comments($tag); |
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if ( $this->ismergeable($tag) && $this->include_inline ) { |
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preg_match( '#<script.*>(.*)</script>#Usmi', $tag , $code ); |
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$code = preg_replace('#.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*#sm', '$1', $code[1] ); |
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$code = preg_replace('/(?:^\\s*<!--\\s*|\\s*(?:\\/\\/)?\\s*-->\\s*$)/', '', $code ); |
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$this->scripts[] = 'INLINE;' . $code; |
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} else { |
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// Can we move this? |
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$autoptimize_js_moveable = apply_filters( 'autoptimize_js_moveable', '', $tag ); |
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if ( $this->ismovable($tag) || '' !== $autoptimize_js_moveable ) { |
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if ( $this->movetolast($tag) || 'last' === $autoptimize_js_moveable ) { |
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$this->move['last'][] = $tag; |
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} else { |
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$this->move['first'][] = $tag; |
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} |
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} else { |
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// We shouldn't touch this. |
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$tag = ''; |
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} |
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} |
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// Re-hide comments to be able to do the removal based on tag from $this->content. |
| 242 |
$tag = $this->hide_comments($tag); |
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} |
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|
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//Remove the original script tag. |
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$this->content = str_replace( $tag, '', $this->content ); |
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} |
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|
| 249 |
return true; |
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} |
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|
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// No script files, great ;-) |
| 253 |
return false; |
| 254 |
} |
| 255 |
|
| 256 |
/** |
| 257 |
* Determines wheter a certain `<script>` $tag should be aggregated or not. |
| 258 |
* |
| 259 |
* We consider these as "aggregation-safe" currently: |
| 260 |
* - script tags without a `type` attribute |
| 261 |
* - script tags with these `type` attribute values: `text/javascript`, `text/ecmascript`, `application/javascript`, |
| 262 |
* and `application/ecmascript` |
| 263 |
* |
| 264 |
* Everything else should return false. |
| 265 |
* |
| 266 |
* @link https://developer.mozilla.org/en/docs/Web/HTML/Element/script#attr-type |
| 267 |
* |
| 268 |
* @param string $tag |
| 269 |
* @return bool |
| 270 |
*/ |
| 271 |
public function should_aggregate($tag) |
| 272 |
{ |
| 273 |
// We're only interested in the type attribute of the <script> tag itself, not any possible |
| 274 |
// inline code that might just contain the 'type=' string... |
| 275 |
$tag_parts = array(); |
| 276 |
preg_match( '#<(script[^>]*)>#i', $tag, $tag_parts); |
| 277 |
$tag_without_contents = null; |
| 278 |
if ( ! empty( $tag_parts[1] ) ) { |
| 279 |
$tag_without_contents = $tag_parts[1]; |
| 280 |
} |
| 281 |
|
| 282 |
$has_type = ( strpos( $tag_without_contents, 'type' ) !== false ); |
| 283 |
|
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$type_valid = false; |
| 285 |
if ( $has_type ) { |
| 286 |
$type_valid = (bool) preg_match( '/type\s*=\s*[\'"]?(?:text|application)\/(?:javascript|ecmascript)[\'"]?/i', $tag_without_contents ); |
| 287 |
} |
| 288 |
|
| 289 |
$should_aggregate = false; |
| 290 |
if ( ! $has_type || $type_valid ) { |
| 291 |
$should_aggregate = true; |
| 292 |
} |
| 293 |
|
| 294 |
return $should_aggregate; |
| 295 |
} |
| 296 |
|
| 297 |
//Joins and optimizes JS |
| 298 |
public function minify() |
| 299 |
{ |
| 300 |
foreach ( $this->scripts as $script ) { |
| 301 |
// TODO/FIXME: some duplicate code here, can be reduced/simplified |
| 302 |
if ( preg_match( '#^INLINE;#', $script ) ) { |
| 303 |
// Inline script |
| 304 |
$script = preg_replace( '#^INLINE;#', '', $script ); |
| 305 |
$script = rtrim( $script, ";\n\t\r" ) . ';'; |
| 306 |
// Add try-catch? |
| 307 |
if ( $this->trycatch ) { |
| 308 |
$script = 'try{' . $script . '}catch(e){}'; |
| 309 |
} |
| 310 |
$tmpscript = apply_filters( 'autoptimize_js_individual_script', $script, '' ); |
| 311 |
if ( has_filter( 'autoptimize_js_individual_script' ) && ! empty( $tmpscript ) ) { |
| 312 |
$script = $tmpscript; |
| 313 |
$this->alreadyminified = true; |
| 314 |
} |
| 315 |
$this->jscode .= "\n" . $script; |
| 316 |
} else { |
| 317 |
// External script |
| 318 |
if ( false !== $script && file_exists( $script ) && is_readable( $script ) ) { |
| 319 |
$scriptsrc = file_get_contents( $script ); |
| 320 |
$scriptsrc = preg_replace( '/\x{EF}\x{BB}\x{BF}/', '', $scriptsrc ); |
| 321 |
$scriptsrc = rtrim( $scriptsrc, ";\n\t\r" ) . ';'; |
| 322 |
// Add try-catch? |
| 323 |
if ( $this->trycatch ) { |
| 324 |
$scriptsrc = 'try{' . $scriptsrc . '}catch(e){}'; |
| 325 |
} |
| 326 |
$tmpscriptsrc = apply_filters( 'autoptimize_js_individual_script', $scriptsrc, $script ); |
| 327 |
if ( has_filter( 'autoptimize_js_individual_script' ) && ! empty( $tmpscriptsrc ) ) { |
| 328 |
$scriptsrc = $tmpscriptsrc; |
| 329 |
$this->alreadyminified = true; |
| 330 |
} else if ( $this->can_inject_late($script) ) { |
| 331 |
$scriptsrc = self::build_injectlater_marker($script, md5($scriptsrc)); |
| 332 |
} |
| 333 |
$this->jscode .= "\n" . $scriptsrc; |
| 334 |
}/*else{ |
| 335 |
//Couldn't read JS. Maybe getpath isn't working? |
| 336 |
}*/ |
| 337 |
} |
| 338 |
} |
| 339 |
|
| 340 |
// Check for already-minified code |
| 341 |
$this->md5hash = md5( $this->jscode ); |
| 342 |
$ccheck = new autoptimizeCache($this->md5hash, 'js'); |
| 343 |
if ( $ccheck->check() ) { |
| 344 |
$this->jscode = $ccheck->retrieve(); |
| 345 |
return true; |
| 346 |
} |
| 347 |
unset( $ccheck ); |
| 348 |
|
| 349 |
// $this->jscode has all the uncompressed code now. |
| 350 |
if ( true !== $this->alreadyminified ) { |
| 351 |
if ( apply_filters( 'autoptimize_js_do_minify', true ) ) { |
| 352 |
$tmp_jscode = trim( JSMin::minify( $this->jscode ) ); |
| 353 |
if ( ! empty( $tmp_jscode ) ) { |
| 354 |
$this->jscode = $tmp_jscode; |
| 355 |
unset( $tmp_jscode ); |
| 356 |
} |
| 357 |
$this->jscode = $this->inject_minified( $this->jscode ); |
| 358 |
$this->jscode = apply_filters( 'autoptimize_js_after_minify', $this->jscode ); |
| 359 |
return true; |
| 360 |
} else { |
| 361 |
$this->jscode = $this->inject_minified( $this->jscode ); |
| 362 |
return false; |
| 363 |
} |
| 364 |
} |
| 365 |
|
| 366 |
$this->jscode = apply_filters( 'autoptimize_js_after_minify', $this->jscode ); |
| 367 |
return true; |
| 368 |
} |
| 369 |
|
| 370 |
// Caches the JS in uncompressed, deflated and gzipped form. |
| 371 |
public function cache() |
| 372 |
{ |
| 373 |
$cache = new autoptimizeCache($this->md5hash, 'js'); |
| 374 |
if ( ! $cache->check() ) { |
| 375 |
// Cache our code |
| 376 |
$cache->cache($this->jscode, 'text/javascript'); |
| 377 |
} |
| 378 |
$this->url = AUTOPTIMIZE_CACHE_URL . $cache->getname(); |
| 379 |
$this->url = $this->url_replace_cdn($this->url); |
| 380 |
} |
| 381 |
|
| 382 |
// Returns the content |
| 383 |
public function getcontent() |
| 384 |
{ |
| 385 |
// Restore the full content |
| 386 |
if ( ! empty( $this->restofcontent ) ) { |
| 387 |
$this->content .= $this->restofcontent; |
| 388 |
$this->restofcontent = ''; |
| 389 |
} |
| 390 |
|
| 391 |
// Add the scripts taking forcehead/ deferred (default) into account |
| 392 |
if ( $this->forcehead ) { |
| 393 |
$replaceTag = array( '</head>', 'before' ); |
| 394 |
$defer = ''; |
| 395 |
} else { |
| 396 |
$replaceTag = array( '</body>', 'before' ); |
| 397 |
$defer = 'defer '; |
| 398 |
} |
| 399 |
|
| 400 |
$defer = apply_filters( 'autoptimize_filter_js_defer', $defer ); |
| 401 |
$type_js = ''; |
| 402 |
if ( apply_filters( 'autoptimize_filter_cssjs_addtype', false ) ) { |
| 403 |
$type_js = 'type="text/javascript" '; |
| 404 |
} |
| 405 |
|
| 406 |
$bodyreplacementpayload = '<script ' . $type_js . $defer . 'src="' . $this->url . '"></script>'; |
| 407 |
$bodyreplacementpayload = apply_filters( 'autoptimize_filter_js_bodyreplacementpayload', $bodyreplacementpayload ); |
| 408 |
|
| 409 |
$bodyreplacement = implode( '', $this->move['first'] ); |
| 410 |
$bodyreplacement .= $bodyreplacementpayload; |
| 411 |
$bodyreplacement .= implode( '', $this->move['last'] ); |
| 412 |
|
| 413 |
$replaceTag = apply_filters( 'autoptimize_filter_js_replacetag', $replaceTag ); |
| 414 |
|
| 415 |
if ( strlen( $this->jscode ) > 0 ) { |
| 416 |
$this->inject_in_html( $bodyreplacement, $replaceTag ); |
| 417 |
} |
| 418 |
|
| 419 |
// Restore comments. |
| 420 |
$this->content = $this->restore_comments( $this->content ); |
| 421 |
|
| 422 |
// Restore IE hacks. |
| 423 |
$this->content = $this->restore_iehacks( $this->content ); |
| 424 |
|
| 425 |
// Restore noptimize. |
| 426 |
$this->content = $this->restore_noptimize( $this->content ); |
| 427 |
|
| 428 |
// Return the modified HTML. |
| 429 |
return $this->content; |
| 430 |
} |
| 431 |
|
| 432 |
// Checks against the white- and blacklists |
| 433 |
private function ismergeable($tag) |
| 434 |
{ |
| 435 |
if ( ! $this->aggregate ) { |
| 436 |
return false; |
| 437 |
} |
| 438 |
|
| 439 |
if ( ! empty( $this->whitelist ) ) { |
| 440 |
foreach ( $this->whitelist as $match ) { |
| 441 |
if (false !== strpos( $tag, $match ) ) { |
| 442 |
return true; |
| 443 |
} |
| 444 |
} |
| 445 |
// no match with whitelist |
| 446 |
return false; |
| 447 |
} else { |
| 448 |
foreach($this->domove as $match) { |
| 449 |
if ( false !== strpos( $tag, $match ) ) { |
| 450 |
// Matched something |
| 451 |
return false; |
| 452 |
} |
| 453 |
} |
| 454 |
|
| 455 |
if ( $this->movetolast($tag) ) { |
| 456 |
return false; |
| 457 |
} |
| 458 |
|
| 459 |
foreach( $this->dontmove as $match ) { |
| 460 |
if ( false !== strpos( $tag, $match ) ) { |
| 461 |
// Matched something |
| 462 |
return false; |
| 463 |
} |
| 464 |
} |
| 465 |
|
| 466 |
// If we're here it's safe to merge |
| 467 |
return true; |
| 468 |
} |
| 469 |
} |
| 470 |
|
| 471 |
// Checks agains the blacklist |
| 472 |
private function ismovable($tag) |
| 473 |
{ |
| 474 |
if ( true !== $this->include_inline || apply_filters( 'autoptimize_filter_js_unmovable', true ) ) { |
| 475 |
return false; |
| 476 |
} |
| 477 |
|
| 478 |
foreach ( $this->domove as $match ) { |
| 479 |
if ( false !== strpos( $tag, $match ) ) { |
| 480 |
// Matched something |
| 481 |
return true; |
| 482 |
} |
| 483 |
} |
| 484 |
|
| 485 |
if ( $this->movetolast($tag) ) { |
| 486 |
return true; |
| 487 |
} |
| 488 |
|
| 489 |
foreach ( $this->dontmove as $match ) { |
| 490 |
if ( false !== strpos( $tag, $match ) ) { |
| 491 |
// Matched something |
| 492 |
return false; |
| 493 |
} |
| 494 |
} |
| 495 |
|
| 496 |
// If we're here it's safe to move |
| 497 |
return true; |
| 498 |
} |
| 499 |
|
| 500 |
private function movetolast($tag) |
| 501 |
{ |
| 502 |
foreach ( $this->domovelast as $match ) { |
| 503 |
if ( false !== strpos( $tag, $match ) ) { |
| 504 |
// Matched, return true |
| 505 |
return true; |
| 506 |
} |
| 507 |
} |
| 508 |
|
| 509 |
// Should be in 'first' |
| 510 |
return false; |
| 511 |
} |
| 512 |
|
| 513 |
/** |
| 514 |
* Determines wheter a <script> $tag can be excluded from minification (as already minified) based on: |
| 515 |
* - inject_min_late being active |
| 516 |
* - filename ending in `min.js` |
| 517 |
* - filename matching `js/jquery/jquery.js` (wordpress core jquery, is minified) |
| 518 |
* - filename matching one passed in the consider minified filter |
| 519 |
* |
| 520 |
* @param string $jsPath |
| 521 |
* @return bool |
| 522 |
*/ |
| 523 |
private function can_inject_late($jsPath) { |
| 524 |
$consider_minified_array = apply_filters( 'autoptimize_filter_js_consider_minified', false ); |
| 525 |
if ( true !== $this->inject_min_late ) { |
| 526 |
// late-inject turned off |
| 527 |
return false; |
| 528 |
} else if ( ( false === strpos( $jsPath, 'min.js' ) ) && ( false === strpos( $jsPath, 'wp-includes/js/jquery/jquery.js' ) ) && ( str_replace( $consider_minified_array, '', $jsPath ) === $jsPath ) ) { |
| 529 |
// file not minified based on filename & filter |
| 530 |
return false; |
| 531 |
} else { |
| 532 |
// phew, all is safe, we can late-inject |
| 533 |
return true; |
| 534 |
} |
| 535 |
} |
| 536 |
|
| 537 |
/** |
| 538 |
* Returns whether we're doing aggregation or not. |
| 539 |
* |
| 540 |
* @return bool |
| 541 |
*/ |
| 542 |
public function aggregating() |
| 543 |
{ |
| 544 |
return $this->aggregate; |
| 545 |
} |
| 546 |
|
| 547 |
/** |
| 548 |
* Minifies a single local js file and returns its (cached) url. |
| 549 |
* |
| 550 |
* @param string $filepath Filepath. |
| 551 |
* @param bool $cache_miss Optional. Force a cache miss. Default false. |
| 552 |
* |
| 553 |
* @return bool|string Url pointing to the minified js file or false. |
| 554 |
*/ |
| 555 |
public function minify_single( $filepath, $cache_miss = false ) |
| 556 |
{ |
| 557 |
$contents = $this->prepare_minify_single( $filepath ); |
| 558 |
|
| 559 |
if ( empty( $contents ) ) { |
| 560 |
return false; |
| 561 |
} |
| 562 |
|
| 563 |
// Check cache. |
| 564 |
$hash = 'single_' . md5( $contents ); |
| 565 |
$cache = new autoptimizeCache( $hash, 'js' ); |
| 566 |
|
| 567 |
// If not in cache already, minify... |
| 568 |
if ( ! $cache->check() || $cache_miss ) { |
| 569 |
$contents = trim( JSMin::minify( $contents ) ); |
| 570 |
// Store in cache. |
| 571 |
$cache->cache( $contents, 'text/javascript' ); |
| 572 |
} |
| 573 |
|
| 574 |
$url = $this->build_minify_single_url( $cache ); |
| 575 |
|
| 576 |
return $url; |
| 577 |
} |
| 578 |
} |
| 579 |
|
