/**
* Remove script tags from the source
*
* @param string $content
* @param array $files
* @return void
*/
function remove_scripts(&$content, $files)
{
$regexps = array();
$home_url_regexp = Util_Environment::home_url_regexp();
$path = '';
if (Util_Environment::is_wpmu() && !Util_Environment::is_wpmu_subdomain()) {
$path = ltrim(Util_Environment::home_url_uri(), '/');
}
foreach ($files as $file) {
if ($path && strpos($file, $path) === 0) {
$file = substr($file, strlen($path));
}
$this->replaced_scripts[] = $file;
if (Util_Environment::is_url($file) && !preg_match('~' . $home_url_regexp . '~i', $file)) {
// external JS files
$regexps[] = Util_Environment::preg_quote($file);
} else {
// local JS files
$file = ltrim($file, '/');
if (home_url() == site_url() && ltrim(Util_Environment::site_url_uri(), '/') && strpos($file, ltrim(Util_Environment::site_url_uri(), '/')) === 0) {
$file = str_replace(ltrim(Util_Environment::site_url_uri(), '/'), '', $file);
}
$file = ltrim(preg_replace('~' . $home_url_regexp . '~i', '', $file), '/\\');
$regexps[] = '(' . $home_url_regexp . ')?/?' . Util_Environment::preg_quote($file);
}
}
foreach ($regexps as $regexp) {
$content = preg_replace('~<script\\s+[^<>]*src=["\']?' . $regexp . '["\']?[^<>]*>\\s*</script>~Uis', '', $content);
}
}
/**
* Generate rules related to prevent for media 404 error by WP
*
* @param Config $config
* @return string
*/
private function rules_no404wp_generate_apache($config)
{
$a = $this->get_mime_types();
$cssjs_types = $a['cssjs'];
$html_types = $a['html'];
$other_types = $a['other'];
$extensions = array_merge(array_keys($cssjs_types), array_keys($html_types), array_keys($other_types));
$permalink_structure = get_option('permalink_structure');
$permalink_structure_ext = ltrim(strrchr($permalink_structure, '.'), '.');
if ($permalink_structure_ext != '') {
foreach ($extensions as $index => $extension) {
if (strstr($extension, $permalink_structure_ext) !== false) {
$extensions[$index] = preg_replace('~\\|?' . Util_Environment::preg_quote($permalink_structure_ext) . '\\|?~', '', $extension);
}
}
}
$exceptions = $config->get_array('browsercache.no404wp.exceptions');
$wp_uri = network_home_url('', 'relative');
$wp_uri = rtrim($wp_uri, '/');
$rules = '';
$rules .= W3TC_MARKER_BEGIN_BROWSERCACHE_NO404WP . "\n";
$rules .= "<IfModule mod_rewrite.c>\n";
$rules .= " RewriteEngine On\n";
// in subdir - rewrite theme files and similar to upper folder if file exists
if (Util_Environment::is_wpmu() && !Util_Environment::is_wpmu_subdomain()) {
$rules .= " RewriteCond %{REQUEST_FILENAME} !-f\n";
$rules .= " RewriteCond %{REQUEST_FILENAME} !-d\n";
$rules .= " RewriteCond %{REQUEST_URI} ^{$wp_uri}/([_0-9a-zA-Z-]+/)(.*\\.)(" . implode('|', $extensions) . ")\$ [NC]\n";
$document_root = Util_Rule::apache_docroot_variable();
$rules .= ' RewriteCond "' . $document_root . $wp_uri . '/%2%3" -f' . "\n";
$rules .= " RewriteRule .* {$wp_uri}/%2%3 [L]\n\n";
}
$rules .= " RewriteCond %{REQUEST_FILENAME} !-f\n";
$rules .= " RewriteCond %{REQUEST_FILENAME} !-d\n";
$imploded = implode('|', $exceptions);
if (!empty($imploded)) {
$rules .= " RewriteCond %{REQUEST_URI} !(" . $imploded . ")\n";
}
$rules .= " RewriteCond %{REQUEST_URI} \\.(" . implode('|', $extensions) . ")\$ [NC]\n";
$rules .= " RewriteRule .* - [L]\n";
$rules .= "</IfModule>\n";
$rules .= W3TC_MARKER_END_BROWSERCACHE_NO404WP . "\n";
return $rules;
}
/**
* Returns regexp by mask
*
* @param string $mask
* @return string
*/
function get_regexp_by_mask($mask)
{
$mask = trim($mask);
$mask = Util_Environment::preg_quote($mask);
$mask = str_replace(array('\\*', '\\?', ';'), array('@ASTERISK@', '@QUESTION@', '|'), $mask);
$regexp = str_replace(array('@ASTERISK@', '@QUESTION@'), array('[^\\?\\*:\\|"<>]*', '[^\\?\\*:\\|"<>]'), $mask);
return $regexp;
}
private function fill_regexps()
{
$regexps = array();
$site_path = Util_Environment::site_url_uri();
$domain_url_regexp = Util_Environment::home_domain_root_url_regexp();
$site_domain_url_regexp = false;
if ($domain_url_regexp != Util_Environment::get_url_regexp(Util_Environment::url_to_host(site_url()))) {
$site_domain_url_regexp = Util_Environment::get_url_regexp(Util_Environment::url_to_host(site_url()));
}
if ($this->_config->get_boolean('cdn.uploads.enable')) {
$upload_info = Util_Http::upload_info();
if ($upload_info) {
$baseurl = $upload_info['baseurl'];
if (defined('DOMAIN_MAPPING') && DOMAIN_MAPPING) {
$parsed = @parse_url($upload_info['baseurl']);
$baseurl = home_url() . $parsed['path'];
}
$regexps = $this->make_uploads_regexes($domain_url_regexp, $baseurl, $upload_info, $regexps);
if ($site_domain_url_regexp) {
$regexps = $this->make_uploads_regexes($site_domain_url_regexp, $baseurl, $upload_info, $regexps);
}
}
}
if ($this->_config->get_boolean('cdn.includes.enable')) {
$mask = $this->_config->get_string('cdn.includes.files');
if ($mask != '') {
$regexps[] = '~(["\'(=])\\s*((' . $domain_url_regexp . ')?(' . Util_Environment::preg_quote($site_path . WPINC) . '/(' . Cdn_Util::get_regexp_by_mask($mask) . ')([^"\'() >]*)))~i';
if ($site_domain_url_regexp) {
$regexps[] = '~(["\'(=])\\s*((' . $site_domain_url_regexp . ')?(' . Util_Environment::preg_quote($site_path . WPINC) . '/(' . Cdn_Util::get_regexp_by_mask($mask) . ')([^"\'() >]*)))~i';
}
}
}
if ($this->_config->get_boolean('cdn.theme.enable')) {
$theme_dir = preg_replace('~' . $domain_url_regexp . '~i', '', get_theme_root_uri());
$mask = $this->_config->get_string('cdn.theme.files');
if ($mask != '') {
$regexps[] = '~(["\'(=])\\s*((' . $domain_url_regexp . ')?(' . Util_Environment::preg_quote($theme_dir) . '/(' . Cdn_Util::get_regexp_by_mask($mask) . ')([^"\'() >]*)))~i';
if ($site_domain_url_regexp) {
$theme_dir2 = preg_replace('~' . $site_domain_url_regexp . '~i', '', get_theme_root_uri());
$regexps[] = '~(["\'(=])\\s*((' . $site_domain_url_regexp . ')?(' . Util_Environment::preg_quote($theme_dir) . '/(' . Cdn_Util::get_regexp_by_mask($mask) . ')([^"\'() >]*)))~i';
$regexps[] = '~(["\'(=])\\s*((' . $site_domain_url_regexp . ')?(' . Util_Environment::preg_quote($theme_dir2) . '/(' . Cdn_Util::get_regexp_by_mask($mask) . ')([^"\'() >]*)))~i';
}
}
}
if ($this->_config->get_boolean('cdn.custom.enable')) {
$masks = $this->_config->get_array('cdn.custom.files');
$masks = array_map(array('\\W3TC\\Cdn_Util', 'replace_folder_placeholders'), $masks);
$masks = array_map(array('\\W3TC\\Util_Environment', 'parse_path'), $masks);
if (count($masks)) {
$mask_regexps = array();
foreach ($masks as $mask) {
if ($mask != '') {
$mask = Util_Environment::normalize_file($mask);
$mask_regexps[] = Cdn_Util::get_regexp_by_mask($mask);
}
}
$regexps[] = '~(["\'(=])\\s*((' . $domain_url_regexp . ')?(' . Util_Environment::preg_quote($site_path) . '(' . implode('|', $mask_regexps) . ')([^"\'() >]*)))~i';
if ($site_domain_url_regexp) {
$regexps[] = '~(["\'(=])\\s*((' . $site_domain_url_regexp . ')?(' . Util_Environment::preg_quote($site_path) . '(' . implode('|', $mask_regexps) . ')([^"\'() >]*)))~i';
}
}
}
$this->_regexps = $regexps;
}
/**
* Returns URL regexp from URL
*
* @param string $url
* @return string
*/
public static function get_url_regexp($url)
{
$url = preg_replace('~(https?:)?//~i', '', $url);
$url = preg_replace('~^www\\.~i', '', $url);
$regexp = '(https?:)?//(www\\.)?' . Util_Environment::preg_quote($url);
return $regexp;
}
/**
* Check if rules exist
*
* @param string $rules
* @param string $start
* @param string $end
* @return int
*/
public static function has_rules($rules, $start, $end)
{
return preg_match('~' . Util_Environment::preg_quote($start) . "\n.*?" . Util_Environment::preg_quote($end) . "\n*~s", $rules);
}