/**
* Generates directives for file cache dir
*
* @param Config $config
* @return string
*/
private function rules_cache_generate_nginx($config)
{
$cache_dir = Util_Rule::filename_to_uri(W3TC_CACHE_MINIFY_DIR);
$browsercache = $config->get_boolean('browsercache.enabled');
$compression = $browsercache && $config->get_boolean('browsercache.cssjs.compression');
$expires = $browsercache && $config->get_boolean('browsercache.cssjs.expires');
$lifetime = $browsercache ? $config->get_integer('browsercache.cssjs.lifetime') : 0;
$cache_control = $browsercache && $config->get_boolean('browsercache.cssjs.cache.control');
$w3tc = $browsercache && $config->get_integer('browsercache.cssjs.w3tc');
$rules = '';
$rules .= W3TC_MARKER_BEGIN_MINIFY_CACHE . "\n";
$common_rules = '';
if ($expires) {
$common_rules .= " expires modified " . $lifetime . "s;\n";
}
if ($w3tc) {
$common_rules .= " add_header X-Powered-By \"" . Util_Environment::w3tc_header($config) . "\";\n";
}
if ($compression) {
$common_rules .= " add_header Vary \"Accept-Encoding\";\n";
}
if ($cache_control) {
$cache_policy = $config->get_string('browsercache.cssjs.cache.policy');
switch ($cache_policy) {
case 'cache':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"public\";\n";
break;
case 'cache_public_maxage':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"max-age=" . $lifetime . ", public\";\n";
break;
case 'cache_validation':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"public, must-revalidate, proxy-revalidate\";\n";
break;
case 'cache_noproxy':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"private, must-revalidate\";\n";
break;
case 'cache_maxage':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"max-age=" . $lifetime . ", public, must-revalidate, proxy-revalidate\";\n";
break;
case 'no_cache':
$common_rules .= " add_header Pragma \"no-cache\";\n";
$common_rules .= " add_header Cache-Control \"max-age=0, private, no-store, no-cache, must-revalidate\";\n";
break;
}
}
$rules .= "location ~ " . $cache_dir . ".*\\.js\$ {\n";
$rules .= " types {}\n";
$rules .= " default_type application/x-javascript;\n";
$rules .= $common_rules;
$rules .= "}\n";
$rules .= "location ~ " . $cache_dir . ".*\\.css\$ {\n";
$rules .= " types {}\n";
$rules .= " default_type text/css;\n";
$rules .= $common_rules;
$rules .= "}\n";
if ($compression) {
$rules .= "location ~ " . $cache_dir . ".*js\\.gzip\$ {\n";
$rules .= " gzip off;\n";
$rules .= " types {}\n";
$rules .= " default_type application/x-javascript;\n";
$rules .= $common_rules;
$rules .= " add_header Content-Encoding gzip;\n";
$rules .= "}\n";
$rules .= "location ~ " . $cache_dir . ".*css\\.gzip\$ {\n";
$rules .= " gzip off;\n";
$rules .= " types {}\n";
$rules .= " default_type text/css;\n";
$rules .= $common_rules;
$rules .= " add_header Content-Encoding gzip;\n";
$rules .= "}\n";
}
$rules .= W3TC_MARKER_END_MINIFY_CACHE . "\n";
return $rules;
}
/**
* Runs minify
*
* @param string|null $file
*
* @return void
*/
function process($file = NULL, $quiet = false)
{
/**
* Check for rewrite test request
*/
$rewrite_marker = 'rewrite_test.css';
if (substr($file, strlen($file) - strlen($rewrite_marker)) == $rewrite_marker) {
echo 'Minify OK';
exit;
}
$filelength_test_marker = 'XXX.css';
if (substr($file, strlen($file) - strlen($filelength_test_marker)) == $filelength_test_marker) {
$cache = $this->_get_cache();
header('Content-type: text/css');
if (!$cache->store(basename($file), array('content' => 'content ok'))) {
echo 'error storing';
} else {
if (function_exists('gzencode') && $this->_config->get_boolean('browsercache.enabled') && $this->_config->get_boolean('browsercache.cssjs.compression')) {
if (!$cache->store(basename($file) . '.gzip', array('content' => gzencode('content ok')))) {
echo 'error storing';
exit;
}
}
$v = $cache->fetch(basename($file));
if ($v['content'] == 'content ok') {
echo 'content ok';
} else {
echo 'error storing';
}
}
exit;
}
// remove querystring
if (preg_match('~(.+)(\\?x[0-9]{5})$~', $file, $m)) {
$file = $m[1];
}
// remove blog_id
$levels = '';
if (defined('W3TC_BLOG_LEVELS')) {
for ($n = 0; $n < W3TC_BLOG_LEVELS; $n++) {
$levels .= '[0-9]+\\/';
}
}
if (preg_match('~^(' . $levels . '[0-9]+)\\/(.+)$~', $file, $matches)) {
$file = $matches[2];
}
// normalize according to browsercache
$file = Dispatcher::requested_minify_filename($this->_config, $file);
// parse file
$hash = '';
$matches = null;
$location = '';
$type = '';
if (preg_match('~^' . MINIFY_AUTO_FILENAME_REGEX . '$~', $file, $matches)) {
list(, $hash, $type) = $matches;
} elseif (preg_match('~^' . MINIFY_MANUAL_FILENAME_REGEX . '$~', $file, $matches)) {
list(, $theme, $template, $location, , , $type) = $matches;
} else {
return $this->finish_with_error(sprintf('Bad file param format: "%s"', $file), $quiet, false);
}
/**
* Set cache engine
*/
$cache = $this->_get_cache();
\Minify0_Minify::setCache($cache);
/**
* Set cache ID
*/
$cache_id = $this->get_cache_id($file);
\Minify0_Minify::setCacheId($file);
/**
* Set logger
*/
\Minify_Logger::setLogger(array($this, 'debug_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' => $browsercache && !defined('W3TC_PAGECACHE_OUTPUT_COMPRESSION_OFF') && !$quiet && $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')), 'quiet' => $quiet));
/**
* Set sources
*/
if ($hash) {
$_GET['f_array'] = $this->minify_filename_to_filenames_for_minification($hash, $type);
$_GET['ext'] = $type;
} else {
$_GET['g'] = $location;
$serve_options['minApp']['groups'] = $this->get_groups($theme, $template, $type);
}
/**
* Set minifier
*/
$w3_minifier = Dispatcher::component('Minify_ContentMinifier');
if ($type == 'js') {
$minifier_type = 'application/x-javascript';
switch (true) {
case ($hash || $location == 'include') && $this->_config->get_boolean('minify.js.combine.header'):
case $location == 'include-body' && $this->_config->get_boolean('minify.js.combine.body'):
case $location == 'include-footer' && $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 (!$quiet && $browsercache && $this->_config->get_boolean('browsercache.cssjs.w3tc')) {
@header('X-Powered-By: ' . Util_Environment::w3tc_header());
}
if (empty($_GET['f_array']) && empty($_GET['g'])) {
return $this->finish_with_error('Nothing to minify', $quiet, false);
}
/**
* Minify!
*/
$return = array();
try {
$return = \Minify0_Minify::serve('MinApp', $serve_options);
} catch (\Exception $exception) {
return $this->finish_with_error($exception->getMessage(), $quiet);
}
if (!is_null(\Minify0_Minify::$recoverableError)) {
$this->_handle_error(\Minify0_Minify::$recoverableError);
}
$state = Dispatcher::config_state_master();
if (!$this->_error_occurred && $state->get_boolean('minify.show_note_minify_error')) {
$error_file = $state->get_string('minify.error.file');
if ($error_file == $file) {
$state->set('minify.show_note_minify_error', false);
$state->save();
}
}
return $return;
}
/**
* Returns headers for file
*
* @param array $file CDN file array
* @return array
*/
function _get_headers($file, $block_expires = false)
{
$local_path = $file['local_path'];
$mime_type = Util_Mime::get_mime_type($local_path);
$last_modified = time();
$link = $file['original_url'];
$headers = array('Content-Type' => $mime_type, 'Last-Modified' => Util_Content::http_date($last_modified), 'Access-Control-Allow-Origin' => '*', 'Link' => '<' . $link . '>; rel="canonical"');
if (isset($this->cache_config[$mime_type])) {
if ($this->cache_config[$mime_type]['etag']) {
$headers['ETag'] = '"' . @md5_file($local_path) . '"';
}
if ($this->cache_config[$mime_type]['w3tc']) {
$headers['X-Powered-By'] = Util_Environment::w3tc_header($this->_config);
}
$expires_set = false;
if (!$block_expires && $this->cache_config[$mime_type]['expires']) {
$headers['Expires'] = Util_Content::http_date(time() + $this->cache_config[$mime_type]['lifetime']);
$expires_set = true;
}
switch ($this->cache_config[$mime_type]['cache_control']) {
case 'cache':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => 'public'));
break;
case 'cache_public_maxage':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => ($expires_set ? '' : 'max-age=' . $this->cache_config[$mime_type]['lifetime'] . ', ') . 'public'));
break;
case 'cache_validation':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => 'public, must-revalidate, proxy-revalidate'));
break;
case 'cache_noproxy':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => 'private, must-revalidate'));
break;
case 'cache_maxage':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => ($expires_set ? '' : 'max-age=' . $this->cache_config[$mime_type]['lifetime'] . ', ') . 'public, must-revalidate, proxy-revalidate'));
break;
case 'no_cache':
$headers = array_merge($headers, array('Pragma' => 'no-cache', 'Cache-Control' => 'max-age=0, private, no-store, no-cache, must-revalidate'));
break;
}
}
return $headers;
}
/**
* Adds cache rules for type to &$rules
*
* @param Config $config
* @param string $rules
* @param array $mime_types
* @param string $section
* @return void
*/
private function _rules_cache_generate_nginx_for_type($config, &$rules, $mime_types, $section)
{
$expires = $config->get_boolean('browsercache.' . $section . '.expires');
$cache_control = $config->get_boolean('browsercache.' . $section . '.cache.control');
$w3tc = $config->get_boolean('browsercache.' . $section . '.w3tc');
if ($expires || $cache_control || $w3tc) {
$lifetime = $config->get_integer('browsercache.' . $section . '.lifetime');
$extensions = array_keys($mime_types);
// Remove ext from filesmatch if its the same as permalink extension
$pext = strtolower(pathinfo(get_option('permalink_structure'), PATHINFO_EXTENSION));
if ($pext) {
$extensions = $this->_remove_extension_from_list($extensions, $pext);
}
$rules .= "location ~ \\.(" . implode('|', $extensions) . ")\$ {\n";
if ($expires) {
$rules .= " expires " . $lifetime . "s;\n";
}
$add_header_rules = '';
if ($cache_control) {
$cache_policy = $config->get_string('browsercache.' . $section . '.cache.policy');
switch ($cache_policy) {
case 'cache':
$add_header_rules .= " add_header Pragma \"public\";\n";
$add_header_rules .= " add_header Cache-Control \"public\";\n";
break;
case 'cache_public_maxage':
$add_header_rules .= " add_header Pragma \"public\";\n";
$add_header_rules .= " add_header Cache-Control \"max-age=" . $lifetime . ", public\";\n";
break;
case 'cache_validation':
$add_header_rules .= " add_header Pragma \"public\";\n";
$add_header_rules .= " add_header Cache-Control \"public, must-revalidate, proxy-revalidate\";\n";
break;
case 'cache_noproxy':
$add_header_rules .= " add_header Pragma \"public\";\n";
$add_header_rules .= " add_header Cache-Control \"private, must-revalidate\";\n";
break;
case 'cache_maxage':
$add_header_rules .= " add_header Pragma \"public\";\n";
$add_header_rules .= " add_header Cache-Control \"max-age=" . $lifetime . ", public, must-revalidate, proxy-revalidate\";\n";
break;
case 'no_cache':
$add_header_rules .= " add_header Pragma \"no-cache\";\n";
$add_header_rules .= " add_header Cache-Control \"max-age=0, private, no-store, no-cache, must-revalidate\";\n";
break;
}
}
if ($w3tc) {
$add_header_rules .= " add_header X-Powered-By \"" . Util_Environment::w3tc_header($config) . "\";\n";
}
$rules .= $add_header_rules;
$rules .= Dispatcher::on_browsercache_rules_generation_for_section($config, false, $section, $add_header_rules);
if (!$config->get_boolean('browsercache.no404wp')) {
$wp_uri = network_home_url('', 'relative');
$wp_uri = rtrim($wp_uri, '/');
$rules .= ' try_files $uri $uri/ $uri.html ' . $wp_uri . '/index.php?$args;' . "\n";
}
$rules .= "}\n";
}
}
/**
* Generates directives for file cache dir
*
* @param Config $config
* @return string
*/
private function rules_cache_generate_nginx($config)
{
$cache_root = Util_Environment::normalize_path(W3TC_CACHE_PAGE_ENHANCED_DIR);
$cache_dir = rtrim(str_replace(Util_Environment::document_root(), '', $cache_root), '/');
if (Util_Environment::is_wpmu()) {
$cache_dir = preg_replace('~/w3tc.*?/~', '/w3tc.*?/', $cache_dir, 1);
}
$browsercache = $config->get_boolean('browsercache.enabled');
$compression = $browsercache && $config->get_boolean('browsercache.html.compression');
$expires = $browsercache && $config->get_boolean('browsercache.html.expires');
$lifetime = $browsercache ? $config->get_integer('browsercache.html.lifetime') : 0;
$cache_control = $browsercache && $config->get_boolean('browsercache.html.cache.control');
$w3tc = $browsercache && $config->get_integer('browsercache.html.w3tc');
$common_rules = '';
if ($expires) {
$common_rules .= " expires modified " . $lifetime . "s;\n";
}
if ($w3tc) {
$common_rules .= " add_header X-Powered-By \"" . Util_Environment::w3tc_header($config) . "\";\n";
}
if ($expires) {
$common_rules .= " add_header Vary \"Accept-Encoding, Cookie\";\n";
}
if ($cache_control) {
$cache_policy = $config->get_string('browsercache.html.cache.policy');
switch ($cache_policy) {
case 'cache':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"public\";\n";
break;
case 'cache_public_maxage':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"max-age=" . $lifetime . ", public\";\n";
break;
case 'cache_validation':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"public, must-revalidate, proxy-revalidate\";\n";
break;
case 'cache_noproxy':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"private, must-revalidate\";\n";
break;
case 'cache_maxage':
$common_rules .= " add_header Pragma \"public\";\n";
$common_rules .= " add_header Cache-Control \"max-age=" . $lifetime . ", public, must-revalidate, proxy-revalidate\";\n";
break;
case 'no_cache':
$common_rules .= " add_header Pragma \"no-cache\";\n";
$common_rules .= " add_header Cache-Control \"max-age=0, private, no-store, no-cache, must-revalidate\";\n";
break;
}
}
$rules = '';
$rules .= W3TC_MARKER_BEGIN_PGCACHE_CACHE . "\n";
$rules .= "location ~ " . $cache_dir . ".*html\$ {\n";
$rules .= $common_rules;
$rules .= "}\n";
if ($compression) {
$rules .= "location ~ " . $cache_dir . ".*gzip\$ {\n";
$rules .= " gzip off;\n";
$rules .= " types {}\n";
$rules .= " default_type text/html;\n";
$rules .= $common_rules;
$rules .= " add_header Content-Encoding gzip;\n";
$rules .= "}\n";
}
$rules .= W3TC_MARKER_END_PGCACHE_CACHE . "\n";
return $rules;
}
/**
* Send headers
*/
function send_headers()
{
@header('X-Powered-By: ' . Util_Environment::w3tc_header());
}
/**
* Sends headers
*
* @param boolean $is_404
* @param string $etag
* @param integer $time
* @param string $compression
* @param array $custom_headers
* @return boolean
*/
function _send_headers($is_404, $time, $etag, $compression, $custom_headers = array())
{
$exit = false;
$headers = is_array($custom_headers) ? $custom_headers : array();
$curr_time = time();
$bc_lifetime = $this->_config->get_integer('browsercache.html.lifetime');
$expires = (is_null($time) ? $curr_time : $time) + $bc_lifetime;
$max_age = $expires > $curr_time ? $expires - $curr_time : 0;
if ($is_404) {
/**
* Add 404 header
*/
$headers = array_merge($headers, array('Status' => 'HTTP/1.1 404 Not Found'));
} elseif (!is_null($time) && $this->_check_modified_since($time) || $this->_check_match($etag)) {
/**
* Add 304 header
*/
$headers = array_merge($headers, array('Status' => 'HTTP/1.1 304 Not Modified'));
/**
* Don't send content if it isn't modified
*/
$exit = true;
}
if ($this->_config->get_boolean('browsercache.enabled')) {
if ($this->_config->get_boolean('browsercache.html.last_modified')) {
$headers = array_merge($headers, array('Last-Modified' => Util_Content::http_date($time)));
}
if ($this->_config->get_boolean('browsercache.html.expires')) {
$headers = array_merge($headers, array('Expires' => Util_Content::http_date($expires)));
}
if ($this->_config->get_boolean('browsercache.html.cache.control')) {
switch ($this->_config->get_string('browsercache.html.cache.policy')) {
case 'cache':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => 'public'));
break;
case 'cache_public_maxage':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => sprintf('max-age=%d, public', $max_age)));
break;
case 'cache_validation':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => 'public, must-revalidate, proxy-revalidate'));
break;
case 'cache_noproxy':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => 'private, must-revalidate'));
break;
case 'cache_maxage':
$headers = array_merge($headers, array('Pragma' => 'public', 'Cache-Control' => sprintf('max-age=%d, public, must-revalidate, proxy-revalidate', $max_age)));
break;
case 'no_cache':
$headers = array_merge($headers, array('Pragma' => 'no-cache', 'Cache-Control' => 'max-age=0, private, no-store, no-cache, must-revalidate'));
break;
}
}
if ($this->_config->get_boolean('browsercache.html.etag')) {
$headers = array_merge($headers, array('ETag' => '"' . $etag . '"'));
}
if ($this->_config->get_boolean('browsercache.html.w3tc')) {
$headers = array_merge($headers, array('X-Powered-By' => Util_Environment::w3tc_header()));
}
}
$vary = '';
//compressed && UAG
if ($compression && $this->_get_mobile_group()) {
$vary = 'Accept-Encoding,User-Agent,Cookie';
$headers = array_merge($headers, array('Content-Encoding' => $compression));
//compressed
} elseif ($compression) {
$vary = 'Accept-Encoding';
$headers = array_merge($headers, array('Content-Encoding' => $compression));
//uncompressed && UAG
} elseif ($this->_get_mobile_group()) {
$vary = 'User-Agent,Cookie';
}
//Add Cookie to vary if user logged in and not previously set
if (!$this->_check_logged_in() && strpos($vary, 'Cookie') === false) {
if ($vary) {
$vary .= ',Cookie';
} else {
$vary = 'Cookie';
}
}
/**
* Add vary header
*/
if ($vary) {
$headers = array_merge($headers, array('Vary' => $vary));
}
/**
* Disable caching for preview mode
*/
if (Util_Environment::is_preview_mode()) {
$headers = array_merge($headers, array('Pragma' => 'private', 'Cache-Control' => 'private'));
}
/**
* Send headers to client
*/
$result = $this->_headers($headers);
if ($exit) {
exit;
}
return $result;
}
/**
* Send headers
*/
function send_headers()
{
@header('X-Powered-By: ' . Util_Environment::w3tc_header($this->_config));
}
