public function minify()
{
foreach ($this->css as $group) {
list($media, $css) = $group;
if (preg_match('#^INLINE;#', $css)) {
//<style>
$css = preg_replace('#^INLINE;#', '', $css);
$css = $this->fixurls(ABSPATH . '/index.php', $css);
} else {
//<link>
if ($css !== false && file_exists($css) && is_readable($css)) {
$css = $this->fixurls($css, file_get_contents($css));
} else {
//Couldn't read CSS. Maybe getpath isn't working?
$css = '';
}
}
foreach ($media as $elem) {
if (!isset($this->csscode[$elem])) {
$this->csscode[$elem] = '';
}
$this->csscode[$elem] .= "\n/*FILESTART*/" . $css;
}
}
//Check for duplicate code
$md5list = array();
$tmpcss = $this->csscode;
foreach ($tmpcss as $media => $code) {
$md5sum = md5($code);
$medianame = $media;
foreach ($md5list as $med => $sum) {
//If same code
if ($sum === $md5sum) {
//Add the merged code
$medianame = $med . ', ' . $media;
$this->csscode[$medianame] = $code;
$md5list[$medianame] = $md5list[$med];
unset($this->csscode[$med], $this->csscode[$media]);
unset($md5list[$med]);
}
}
$md5list[$medianame] = $md5sum;
}
unset($tmpcss);
//Manage @imports, while is for recursive import management
foreach ($this->csscode as &$thiscss) {
//Flag to trigger import reconstitution
$fiximports = false;
while (preg_match_all('#@import.*(?:;|$)#Um', $thiscss, $matches)) {
foreach ($matches[0] as $import) {
$url = trim(preg_replace('#^.*((?:https?|ftp)://.*\\.css).*$#', '$1', $import), " \t\n\r\v\"'");
$path = $this->getpath($url);
if (file_exists($path) && is_readable($path)) {
$code = addcslashes($this->fixurls($path, file_get_contents($path)), "\\");
$thiscss = preg_replace('#(/\\*FILESTART\\*/.*)' . preg_quote($import, '#') . '#Us', '/*FILESTART2*/' . $code . '$1', $thiscss);
} else {
//getpath is not working?
//Encode so preg_match doesn't see it
$thiscss = str_replace($import, '/*IMPORT*/' . base64_encode($import) . '/*IMPORT*/', $thiscss);
$fiximports = true;
}
}
$thiscss = preg_replace('#/\\*FILESTART\\*/#', '', $thiscss);
$thiscss = preg_replace('#/\\*FILESTART2\\*/#', '/*FILESTART*/', $thiscss);
}
//Recover imports
if ($fiximports) {
$thiscss = preg_replace('#/\\*IMPORT\\*/(.*)/\\*IMPORT\\*/#Use', 'base64_decode("$1")', $thiscss);
}
}
unset($thiscss);
//$this->csscode has all the uncompressed code now.
$mhtmlcount = 0;
foreach ($this->csscode as &$code) {
//Check for already-minified code
$hash = md5($code);
$ccheck = new autoptimizeCache($hash, 'css');
if ($ccheck->check()) {
$code = $ccheck->retrieve();
$this->hashmap[md5($code)] = $hash;
continue;
}
unset($ccheck);
$imgreplace = array();
//Do the imaging!
if ($this->datauris == true && function_exists('base64_encode') && preg_match_all('#(background[^;}]*url\\((?!data)(.*)\\)[^;}]*)(?:;|$|})#Usm', $code, $matches)) {
foreach ($matches[2] as $count => $quotedurl) {
$url = trim($quotedurl, " \t\n\r\v\"'");
// fgo: if querystring, remove it from url
if (strpos($url, '?') !== false) {
$url = reset(explode('?', $url));
}
$path = $this->getpath($url);
// fgo: jpe?j should be jpe?g I guess + 5KB seems like a lot, lower to 2.5KB
if ($path != false && preg_match('#\\.(jpe?g|png|gif|bmp)$#', $path) && file_exists($path) && is_readable($path) && filesize($path) <= 2560) {
//It's an image
//Get type
$type = end(explode('.', $path));
switch ($type) {
// fgo: jpeg and jpg
case 'jpeg':
$dataurihead = 'data:image/jpeg;base64,';
break;
case 'jpg':
$dataurihead = 'data:image/jpeg;base64,';
break;
case 'gif':
$dataurihead = 'data:image/gif;base64,';
break;
case 'png':
$dataurihead = 'data:image/png;base64,';
break;
case 'bmp':
$dataurihead = 'data:image/bmp;base64,';
break;
default:
$dataurihead = 'data:application/octet-stream;base64,';
}
//Encode the data
$base64data = base64_encode(file_get_contents($path));
//Add it to the list for replacement
$imgreplace[$matches[1][$count]] = str_replace($quotedurl, $dataurihead . $base64data, $matches[1][$count]) . ";\n*" . str_replace($quotedurl, 'mhtml:%%MHTML%%!' . $mhtmlcount, $matches[1][$count]) . ";\n_" . $matches[1][$count] . ';';
//Store image on the mhtml document
$this->mhtml .= "--_\r\nContent-Location:{$mhtmlcount}\r\nContent-Transfer-Encoding:base64\r\n\r\n{$base64data}\r\n";
$mhtmlcount++;
}
}
//Replace the images
$code = str_replace(array_keys($imgreplace), array_values($imgreplace), $code);
}
//Minify
if ($this->yui == false && class_exists('Minify_CSS_Compressor')) {
$code = trim(Minify_CSS_Compressor::process($code));
} elseif ($this->yui == true && autoptimizeYUI::available()) {
$code = autoptimizeYUI::compress('css', $code);
}
$this->hashmap[md5($code)] = $hash;
}
unset($code);
return true;
}
public function minify()
{
foreach ($this->scripts as $script) {
if (preg_match('#^INLINE;#', $script)) {
//Inline script
$script = preg_replace('#^INLINE;#', '', $script);
//Add try-catch?
if ($this->trycatch) {
$script = 'try{' . $script . '}catch(e){}';
}
$this->jscode .= "\n" . $script;
} else {
//External script
if ($script !== false && file_exists($script) && is_readable($script)) {
$script = file_get_contents($script);
//Add try-catch?
if ($this->trycatch) {
$script = 'try{' . $script . '}catch(e){}';
}
$this->jscode .= "\n" . $script;
}
/*else{
//Couldn't read JS. Maybe getpath isn't working?
}*/
}
}
//Check for already-minified code
$this->md5hash = md5($this->jscode);
$ccheck = new autoptimizeCache($this->md5hash, 'js');
if ($ccheck->check()) {
$this->jscode = $ccheck->retrieve();
return true;
}
unset($ccheck);
//$this->jscode has all the uncompressed code now.
if ($this->yui == false && class_exists('JSMin')) {
$this->jscode = trim(JSMin::minify($this->jscode));
return true;
} elseif ($this->yui == true && autoptimizeYUI::available()) {
$this->jscode = autoptimizeYUI::compress('js', $this->jscode);
return true;
} else {
return false;
}
}
