public function action_js()
{
$group = (string) $this->request->param('group');
if (empty($group)) {
$group = 'default';
}
if (!($content = Kohana::cache('minify::js::' . $group))) {
$path = isset($this->_config['js'][$group]['path']) ? $this->_config['js'][$group]['path'] : '';
$files = isset($this->_config['js'][$group]['files']) ? $this->_config['js'][$group]['files'] : array();
if (!is_array($files)) {
$files = array();
}
$content = '';
foreach ($files as $file) {
$content .= file_get_contents($path . DIRECTORY_SEPARATOR . $file) . "\n";
}
if (!empty($content)) {
$pack = isset($this->_config['js'][$group]['packer']) ? (bool) $this->_config['js'][$group]['packer'] : false;
$is_min = isset($this->_config['js'][$group]['is_min']) ? (bool) $this->_config['js'][$group]['is_min'] : false;
if ($pack) {
$packer = new Minify_Packer($content, 'Normal', TRUE, FALSE);
$content = $packer->pack();
} else {
if (!$is_min) {
$minifier = isset($this->_config['js'][$group]['minifier']) ? $this->_config['js'][$group]['minifier'] : '';
if (!empty($minifier) && class_exists($minifier)) {
$class = new ReflectionClass($minifier);
$js_min = $class->newInstance($content);
$content = $class->getMethod('min')->invoke($js_min);
} else {
$content = Minify_JS::minify($content);
}
}
}
}
if ((bool) $this->_config['cache']) {
Kohana::cache('minify::js::' . $group, $content, (int) $this->_config['cache_lifetime']);
}
}
$this->response->body($content);
}
private function _bootstrap($packed, $keywords)
{
$_ENCODE = $this->_safe_reg_exp('$encode\\($count\\)');
// $packed: the packed script
$packed = "'" . $this->_escape($packed) . "'";
// $ascii: base for encoding
$ascii = min(count($keywords['sorted']), $this->_encoding);
if ($ascii == 0) {
$ascii = 1;
}
// $count: number of words contained in the script
$count = count($keywords['sorted']);
// $keywords: list of words contained in the script
foreach ($keywords['protected'] as $i => $value) {
$keywords['sorted'][$i] = '';
}
// convert from a string to an array
ksort($keywords['sorted']);
$keywords = "'" . implode('|', $keywords['sorted']) . "'.split('|')";
$encode = $this->_encoding > 62 ? '_encode95' : $this->_get_encoder($ascii);
$encode = $this->_get_js_function($encode);
$encode = preg_replace('/_encoding/', '$ascii', $encode);
$encode = preg_replace('/arguments\\.callee/', '$encode', $encode);
$inline = '\\$count' . ($ascii > 10 ? '.toString(\\$ascii)' : '');
// $decode: code snippet to speed up decoding
if ($this->_fast_decode) {
// create the decoder
$decode = $this->_get_js_function('_decodeBody');
if ($this->_encoding > 62) {
$decode = preg_replace('/\\\\w/', '[\\xa1-\\xff]', $decode);
} else {
if ($ascii < 36) {
$decode = preg_replace($_ENCODE, $inline, $decode);
}
}
// special case: when $count==0 there are no keywords. I want to keep
// the basic shape of the unpacking funcion so i'll frig the code...
if ($count == 0) {
$decode = preg_replace($this->_safe_reg_exp('($count)\\s*=\\s*1'), '$1=0', $decode, 1);
}
}
// boot function
$unpack = $this->_get_js_function('_unpack');
if ($this->_fast_decode) {
// insert the decoder
$this->buffer = $decode;
$unpack = preg_replace_callback('/\\{/', array(&$this, '_insert_fast_decode'), $unpack, 1);
}
$unpack = preg_replace('/"/', "'", $unpack);
if ($this->_encoding > 62) {
// get rid of the word-boundaries for regexp matches
$unpack = preg_replace('/\'\\\\\\\\b\'\\s*\\+|\\+\\s*\'\\\\\\\\b\'/', '', $unpack);
}
if ($ascii > 36 || $this->_encoding > 62 || $this->_fast_decode) {
// insert the encode function
$this->buffer = $encode;
$unpack = preg_replace_callback('/\\{/', array(&$this, '_insert_fast_encode'), $unpack, 1);
} else {
// perform the encoding inline
$unpack = preg_replace($_ENCODE, $inline, $unpack);
}
// pack the boot function too
$unpack_packer = new Minify_Packer($unpack, 0, FALSE, TRUE);
$unpack = $unpack_packer->pack();
// arguments
$params = array($packed, $ascii, $count, $keywords);
if ($this->_fast_decode) {
$params[] = 0;
$params[] = '{}';
}
$params = implode(',', $params);
// the whole thing
return 'eval(' . $unpack . '(' . $params . "))\n";
}
