/**
* Minifies HTML
*
* @param string $html
* @return string
*/
function minify_html(&$html)
{
require_once W3TC_LIB_W3_DIR . '/Minifier.php';
$w3_minifier =& W3_Minifier::instance();
$ignored_comments = $this->_config->get_array('minify.html.comments.ignore');
if (count($ignored_comments)) {
require_once W3TC_LIB_MINIFY_DIR . '/Minify/IgnoredCommentPreserver.php';
$ignored_comments_preserver =& new Minify_IgnoredCommentPreserver();
$ignored_comments_preserver->setIgnoredComments($ignored_comments);
$ignored_comments_preserver->search($html);
}
if ($this->_config->get_boolean('minify.html.inline.js')) {
$js_engine = $this->_config->get_string('minify.js.engine');
if (!$w3_minifier->exists($js_engine) || !$w3_minifier->available($js_engine)) {
$js_engine = 'js';
}
$js_minifier = $w3_minifier->get_minifier($js_engine);
$js_options = $w3_minifier->get_options($js_engine);
$w3_minifier->init($js_engine);
require_once W3TC_LIB_MINIFY_DIR . '/Minify/Inline.php';
require_once W3TC_LIB_MINIFY_DIR . '/Minify/Inline/JavaScript.php';
$html = Minify_Inline_JavaScript::minify($html, $js_minifier, $js_options);
}
if ($this->_config->get_boolean('minify.html.inline.css')) {
$css_engine = $this->_config->get_string('minify.css.engine');
if (!$w3_minifier->exists($css_engine) || !$w3_minifier->available($css_engine)) {
$css_engine = 'css';
}
$css_minifier = $w3_minifier->get_minifier($css_engine);
$css_options = $w3_minifier->get_options($css_engine);
$w3_minifier->init($css_engine);
require_once W3TC_LIB_MINIFY_DIR . '/Minify/Inline.php';
require_once W3TC_LIB_MINIFY_DIR . '/Minify/Inline/CSS.php';
$html = Minify_Inline_CSS::minify($html, $css_minifier, $css_options);
}
$engine = $this->_config->get_string('minify.html.engine');
if (!$w3_minifier->exists($engine) || !$w3_minifier->available($engine)) {
$engine = 'html';
}
if (function_exists('is_feed') && is_feed()) {
$engine .= 'xml';
}
$minifier = $w3_minifier->get_minifier($engine);
$options = $w3_minifier->get_options($engine);
$w3_minifier->init($engine);
$html = call_user_func($minifier, $html, $options);
if (isset($ignored_comments_preserver)) {
$ignored_comments_preserver->replace($html);
}
}
/**
* Runs minify
*/
function process()
{
require_once W3TC_LIB_W3_DIR . '/Request.php';
/**
* Check for rewrite test request
*/
$rewrite_test = W3_Request::get_boolean('w3tc_rewrite_test');
if ($rewrite_test) {
echo 'OK';
exit;
}
$file = W3_Request::get_string('file');
if (!$file) {
$this->error('File param is missing');
}
$hash = '';
$matches = null;
if (preg_match('~^([a-f0-9]+)\\.[a-f0-9]+\\.(css|js)$~', $file, $matches)) {
list(, $hash, $type) = $matches;
} elseif (preg_match('~^([a-f0-9]+)\\/(.+)\\.(include(\\-(footer|body))?(-nb)?)\\.[a-f0-9]+\\.(css|js)$~', $file, $matches)) {
list(, $theme, $template, $location, , , , $type) = $matches;
} else {
$this->error(sprintf('Bad file param format: "%s"', $file));
}
require_once W3TC_LIB_MINIFY_DIR . '/Minify.php';
require_once W3TC_LIB_MINIFY_DIR . '/HTTP/Encoder.php';
/**
* Fix DOCUMENT_ROOT
*/
$_SERVER['DOCUMENT_ROOT'] = w3_get_document_root();
/**
* Set cache engine
*/
Minify::setCache($this->_get_cache());
/**
* Set cache ID
*/
$cache_id = $this->get_cache_id($file);
Minify::setCacheId($cache_id);
/**
* Set logger
*/
require_once W3TC_LIB_MINIFY_DIR . '/Minify/Logger.php';
Minify_Logger::setLogger(array(&$this, 'error'));
/**
* Set options
*/
$browsercache = $this->_config->get_boolean('browsercache.enabled');
$serve_options = array_merge($this->_config->get_array('minify.options'), array('debug' => $this->_config->get_boolean('minify.debug'), 'maxAge' => $this->_config->get_integer('browsercache.cssjs.lifetime'), 'encodeOutput' => $browsercache && $this->_config->get_boolean('browsercache.cssjs.compression'), 'bubbleCssImports' => $this->_config->get_string('minify.css.imports') == 'bubble', 'processCssImports' => $this->_config->get_string('minify.css.imports') == 'process', 'cacheHeaders' => array('use_etag' => $browsercache && $this->_config->get_boolean('browsercache.cssjs.etag'), 'expires_enabled' => $browsercache && $this->_config->get_boolean('browsercache.cssjs.expires'), 'cacheheaders_enabled' => $browsercache && $this->_config->get_boolean('browsercache.cssjs.cache.control'), 'cacheheaders' => $this->_config->get_string('browsercache.cssjs.cache.policy'))));
/**
* Set sources
*/
if ($hash) {
$_GET['f'] = $this->get_files($hash, $type);
} else {
$_GET['g'] = $location;
$serve_options['minApp']['groups'] = $this->get_groups($theme, $template, $type);
}
/**
* Set minifier
*/
require_once W3TC_LIB_W3_DIR . '/Minifier.php';
$w3_minifier =& W3_Minifier::instance();
if ($type == 'js') {
$minifier_type = 'application/x-javascript';
switch (true) {
case ($hash || $location == 'include' || $location == 'include-nb') && $this->_config->get_boolean('minify.js.combine.header'):
case ($location == 'include-body' || $location == 'include-body-nb') && $this->_config->get_boolean('minify.js.combine.body'):
case ($location == 'include-footer' || $location == 'include-footer-nb') && $this->_config->get_boolean('minify.js.combine.footer'):
$engine = 'combinejs';
break;
default:
$engine = $this->_config->get_string('minify.js.engine');
if (!$w3_minifier->exists($engine) || !$w3_minifier->available($engine)) {
$engine = 'js';
}
break;
}
} elseif ($type == 'css') {
$minifier_type = 'text/css';
if (($hash || $location == 'include') && $this->_config->get_boolean('minify.css.combine')) {
$engine = 'combinecss';
} else {
$engine = $this->_config->get_string('minify.css.engine');
if (!$w3_minifier->exists($engine) || !$w3_minifier->available($engine)) {
$engine = 'css';
}
}
}
/**
* Initialize minifier
*/
$w3_minifier->init($engine);
$serve_options['minifiers'][$minifier_type] = $w3_minifier->get_minifier($engine);
$serve_options['minifierOptions'][$minifier_type] = $w3_minifier->get_options($engine);
/**
* Send X-Powered-By header
*/
if ($browsercache && $this->_config->get_boolean('browsercache.cssjs.w3tc')) {
@header('X-Powered-By: ' . W3TC_POWERED_BY);
}
/**
* Minify!
*/
try {
Minify::serve('MinApp', $serve_options);
} catch (Exception $exception) {
$this->error($exception->getMessage());
}
}
