private static function _processUriCB($m)
{
// $m matched either '/@import\\s+([\'"])(.*?)[\'"]/' or '/url\\(\\s*([^\\)\\s]+)\\s*\\)/'
$isImport = $m[0][0] === '@';
// determine URI and the quote character (if any)
if ($isImport) {
$quoteChar = $m[1];
$uri = $m[2];
} else {
// $m[1] is either quoted or not
$quoteChar = $m[1][0] === "'" || $m[1][0] === '"' ? $m[1][0] : '';
$uri = $quoteChar === '' ? $m[1] : substr($m[1], 1, strlen($m[1]) - 2);
}
// analyze URI
if (false === strpos($uri, '//') && 0 !== strpos($uri, 'data:')) {
// prepend
if (self::$_prependRelativePath) {
if (w3_is_url(self::$_prependRelativePath)) {
$parse_url = @parse_url(self::$_prependRelativePath);
if ($parse_url && isset($parse_url['host'])) {
$scheme = $parse_url['scheme'];
$host = $parse_url['host'];
$port = isset($parse_url['port']) && $parse_url['port'] != 80 ? ':' . (int) $parse_url['port'] : '';
$path = !empty($parse_url['path']) ? $parse_url['path'] : '/';
$dir_css = preg_replace('~[^/]+$~', '', $path);
$dir_obj = preg_replace('~[^/]+$~', '', $uri);
$dir = ltrim(strpos($dir_obj, '/') === 0 ? w3_realpath($dir_obj) : w3_realpath($dir_css . $dir_obj), '/');
$file = basename($uri);
$uri = sprintf('%s://%s%s/%s/%s', $scheme, $host, $port, $dir, $file);
}
} else {
$uri = self::$_prependRelativePath . $uri;
}
} else {
$uri = self::_rewriteRelative($uri, self::$_currentDir, self::$_docRoot, self::$_symlinks);
if (self::$_prependAbsolutePath) {
$prependAbsolutePath = self::$_prependAbsolutePath;
} elseif (self::$_prependAbsolutePathCallback) {
$prependAbsolutePath = call_user_func(self::$_prependAbsolutePathCallback, $uri);
} else {
$prependAbsolutePath = '';
}
if ($prependAbsolutePath) {
$uri = rtrim($prependAbsolutePath, '/') . $uri;
}
}
if (self::$_browserCacheId && count(self::$_browserCacheExtensions)) {
$matches = null;
if (preg_match('~\\.([a-z-_]+)(\\?.*)?$~', $uri, $matches)) {
$extension = $matches[1];
$query = isset($matches[2]) ? $matches[2] : '';
if ($extension && in_array($extension, self::$_browserCacheExtensions)) {
$uri = w3_remove_query($uri);
$uri .= ($query ? '&' : '?') . self::$_browserCacheId;
}
}
}
}
return $isImport ? "@import {$quoteChar}{$uri}{$quoteChar}" : "url({$quoteChar}{$uri}{$quoteChar})";
}
/**
* Translates remote file to local file
*
* @param string $file
* @return string
*/
function w3_translate_file($file)
{
if (!w3_is_url($file)) {
$file = '/' . ltrim($file, '/');
$regexp = '~^' . w3_preg_quote(w3_get_site_path()) . '~';
$file = preg_replace($regexp, w3_get_base_path(), $file);
$file = ltrim($file, '/');
}
return $file;
}
/**
* Remove script tags from the source
*
* @param string $content
* @param array $files
* @return void
*/
function remove_scripts(&$content, $files)
{
$regexps = array();
$domain_url_regexp = w3_get_domain_url_regexp();
foreach ($files as $file) {
$this->replaced_scripts[] = $file;
if (w3_is_url($file) && !preg_match('~' . $domain_url_regexp . '~i', $file)) {
// external JS files
$regexps[] = w3_preg_quote($file);
} else {
// local JS files
$file = ltrim(preg_replace('~' . $domain_url_regexp . '~i', '', $file), '/\\');
$regexps[] = '(' . $domain_url_regexp . ')?/?' . w3_preg_quote($file);
}
}
foreach ($regexps as $regexp) {
$content = preg_replace('~<script\\s+[^<>]*src=["\']?' . $regexp . '["\']?[^<>]*>\\s*</script>~Uis', '', $content);
}
}
function w3_normalize_file_minify($file)
{
global $wp_rewrite;
$hmwp = new HideMyWP();
$hmwp->init();
$hmwp->add_rewrite_rules($wp_rewrite);
$file = $hmwp->reverse_partial_filter($file);
if (w3_is_url($file)) {
if (strstr($file, '?') === false) {
$domain_url_regexp = '~' . w3_get_domain_url_regexp() . '~i';
$file = preg_replace($domain_url_regexp, '', $file);
}
}
if (!w3_is_url($file)) {
$file = w3_path($file);
$file = str_replace(w3_get_document_root(), '', $file);
$file = ltrim($file, '/');
}
return $file;
}
/**
* Imports library
*
* @param integer $limit
* @param integer $offset
* @param integer $count
* @param integer $total
* @param array $results
* @return boolean
*/
function import_library($limit, $offset, &$count, &$total, &$results)
{
global $wpdb;
$count = 0;
$total = 0;
$results = array();
$upload_info = w3_upload_info();
$uploads_use_yearmonth_folders = get_option('uploads_use_yearmonth_folders');
$document_root = w3_get_document_root();
@set_time_limit($this->_config->get_integer('timelimit.cdn_import'));
if ($upload_info) {
/**
* Search for posts with links or images
*/
$sql = sprintf('SELECT
ID,
post_content,
post_date
FROM
%sposts
WHERE
post_status = "publish"
AND (post_type = "post" OR post_type = "page")
AND (post_content LIKE "%%src=%%"
OR post_content LIKE "%%href=%%")
', $wpdb->prefix);
if ($limit) {
$sql .= sprintf(' LIMIT %d', $limit);
if ($offset) {
$sql .= sprintf(' OFFSET %d', $offset);
}
}
$posts = $wpdb->get_results($sql);
if ($posts) {
$count = count($posts);
$total = $this->get_import_posts_count();
$regexp = '~(' . $this->get_regexp_by_mask($this->_config->get_string('cdn.import.files')) . ')$~';
$import_external = $this->_config->get_boolean('cdn.import.external');
foreach ($posts as $post) {
$matches = null;
$replaced = array();
$attachments = array();
$post_content = $post->post_content;
/**
* Search for all link and image sources
*/
if (preg_match_all('~(href|src)=[\'"]?([^\'"<>\\s]+)[\'"]?~', $post_content, $matches, PREG_SET_ORDER)) {
foreach ($matches as $match) {
list($search, $attribute, $origin) = $match;
/**
* Check if $search is already replaced
*/
if (isset($replaced[$search])) {
continue;
}
$error = '';
$result = false;
$src = w3_normalize_file_minify($origin);
$dst = '';
/**
* Check if file exists in the library
*/
if (stristr($origin, $upload_info['baseurl']) === false) {
/**
* Check file extension
*/
$check_src = $src;
if (w3_is_url($check_src)) {
$qpos = strpos($check_src, '?');
if ($qpos !== false) {
$check_src = substr($check_src, 0, $qpos);
}
}
if (preg_match($regexp, $check_src)) {
/**
* Check for already uploaded attachment
*/
if (isset($attachments[$src])) {
list($dst, $dst_url) = $attachments[$src];
$result = true;
} else {
if ($uploads_use_yearmonth_folders) {
$upload_subdir = date('Y/m', strtotime($post->post_date));
$upload_dir = sprintf('%s/%s', $upload_info['basedir'], $upload_subdir);
$upload_url = sprintf('%s/%s', $upload_info['baseurl'], $upload_subdir);
} else {
$upload_subdir = '';
$upload_dir = $upload_info['basedir'];
$upload_url = $upload_info['baseurl'];
}
$src_filename = pathinfo($src, PATHINFO_FILENAME);
$src_extension = pathinfo($src, PATHINFO_EXTENSION);
/**
* Get available filename
*/
for ($i = 0;; $i++) {
$dst = sprintf('%s/%s%s%s', $upload_dir, $src_filename, $i ? $i : '', $src_extension ? '.' . $src_extension : '');
if (!file_exists($dst)) {
break;
}
}
$dst_basename = basename($dst);
$dst_url = sprintf('%s/%s', $upload_url, $dst_basename);
$dst_path = ltrim(str_replace($document_root, '', w3_path($dst)), '/');
if ($upload_subdir) {
w3_mkdir($upload_subdir, 0777, $upload_info['basedir']);
}
$download_result = false;
/**
* Check if file is remote URL
*/
if (w3_is_url($src)) {
/**
* Download file
*/
if ($import_external) {
$download_result = w3_download($src, $dst);
if (!$download_result) {
$error = 'Unable to download file';
}
} else {
$error = 'External file import is disabled';
}
} else {
/**
* Otherwise copy file from local path
*/
$src_path = $document_root . '/' . urldecode($src);
if (file_exists($src_path)) {
$download_result = @copy($src_path, $dst);
if (!$download_result) {
$error = 'Unable to copy file';
}
} else {
$error = 'Source file doesn\'t exists';
}
}
/**
* Check if download or copy was successful
*/
if ($download_result) {
w3_require_once(W3TC_INC_DIR . '/functions/mime.php');
$title = $dst_basename;
$guid = ltrim($upload_info['baseurlpath'] . $title, ',');
$mime_type = w3_get_mime_type($dst);
$GLOBALS['wp_rewrite'] = new WP_Rewrite();
/**
* Insert attachment
*/
$id = wp_insert_attachment(array('post_mime_type' => $mime_type, 'guid' => $guid, 'post_title' => $title, 'post_content' => '', 'post_parent' => $post->ID), $dst);
if (!is_wp_error($id)) {
/**
* Generate attachment metadata and upload to CDN
*/
require_once ABSPATH . 'wp-admin/includes/image.php';
wp_update_attachment_metadata($id, wp_generate_attachment_metadata($id, $dst));
$attachments[$src] = array($dst, $dst_url);
$result = true;
} else {
$error = 'Unable to insert attachment';
}
}
}
/**
* If attachment was successfully created then replace links
*/
if ($result) {
$replace = sprintf('%s="%s"', $attribute, $dst_url);
// replace $search with $replace
$post_content = str_replace($search, $replace, $post_content);
$replaced[$search] = $replace;
$error = 'OK';
}
} else {
$error = 'File type rejected';
}
} else {
$error = 'File already exists in the media library';
}
/**
* Add new entry to the log file
*/
$results[] = array('src' => $src, 'dst' => $dst_path, 'result' => $result, 'error' => $error);
}
}
/**
* If post content was chenged then update DB
*/
if ($post_content != $post->post_content) {
wp_update_post(array('ID' => $post->ID, 'post_content' => $post_content));
}
}
}
}
}
/**
* Returns minify groups
* @param string $group
* @param string $type
* @return array
*/
function get_groups($group, $type)
{
$result = array();
switch ($type) {
case 'css':
$groups = $this->_config->get_array('minify.css.groups');
break;
case 'js':
$groups = $this->_config->get_array('minify.js.groups');
break;
default:
return $result;
}
if (isset($groups['default'])) {
$locations = (array) $groups['default'];
} else {
$locations = array();
}
if ($group != 'default' && isset($groups[$group])) {
$locations = array_merge_recursive($locations, (array) $groups[$group]);
}
foreach ($locations as $location => $config) {
if (!empty($config['files'])) {
foreach ((array) $config['files'] as $file) {
if (w3_is_url($file)) {
if ($precached_file = $this->_precache_file($file, $type)) {
$result[$location][$file] = $precached_file;
}
} else {
if (w3_get_blog_id()) {
// for WPMU we have to remove blog path
$file = str_replace(w3_get_site_path(), '', $file);
}
$result[$location][$file] = '//' . $file;
}
}
}
}
return $result;
}
/**
* Returns minify groups
*
* @param string $theme
* @param string $template
* @param string $type
* @return array
*/
function get_groups($theme, $template, $type)
{
$result = array();
switch ($type) {
case 'css':
$groups = $this->_config->get_array('minify.css.groups');
break;
case 'js':
$groups = $this->_config->get_array('minify.js.groups');
break;
default:
return $result;
}
if (isset($groups[$theme]['default'])) {
$locations = (array) $groups[$theme]['default'];
} else {
$locations = array();
}
if ($template != 'default' && isset($groups[$theme][$template])) {
$locations = array_merge_recursive($locations, (array) $groups[$theme][$template]);
}
foreach ($locations as $location => $config) {
if (!empty($config['files'])) {
foreach ((array) $config['files'] as $file) {
$file = w3_normalize_file_minify2($file);
if (w3_is_url($file)) {
$precached_file = $this->_precache_file($file, $type);
if ($precached_file) {
$result[$location][$file] = $precached_file;
} else {
$this->error(sprintf('Unable to cache remote file: "%s"', $file));
}
} else {
$path = w3_get_document_root() . '/' . $file;
if (file_exists($path)) {
$result[$location][$file] = '//' . $file;
} else {
$this->error(sprintf('File "%s" doesn\'t exist', $path));
}
}
}
}
}
return $result;
}
/**
* Cleans scripts
*
* @param string $content
* @return string
*/
function clean_scripts($content)
{
$regexps = array();
$groups = $this->_config->get_array('minify.js.groups');
$domain_url_regexp = w3_get_domain_url_regexp();
foreach ($groups as $group => $locations) {
foreach ((array) $locations as $location => $config) {
if (!empty($config['files'])) {
foreach ((array) $config['files'] as $file) {
if (w3_is_url($file) && !preg_match('~' . $domain_url_regexp . '~i', $file)) {
// external JS files
$regexps[] = w3_preg_quote($file);
} else {
// local JS files
$file = ltrim(preg_replace('~' . $domain_url_regexp . '~i', '', $file), '/\\');
$regexps[] = '(' . $domain_url_regexp . ')?/?' . w3_preg_quote($file);
}
}
}
}
}
foreach ($regexps as $regexp) {
$content = preg_replace('~<script\\s+[^<>]*src=["\']?' . $regexp . '["\']?[^<>]*>\\s*</script>~is', '', $content);
}
return $content;
}
/**
* Exports min files to CDN
*
* @return array
*/
function get_files_minify()
{
$files = array();
if (W3TC_PHP5 && $this->_config->get_boolean('minify.rewrite') && (!$this->_config->get_boolean('minify.auto') || w3_is_cdn_mirror($this->_config->get_string('cdn.engine')))) {
require_once W3TC_INC_DIR . '/functions/http.php';
$minify =& w3_instance('W3_Plugin_Minify');
$document_root = w3_get_document_root();
$site_root = w3_get_site_root();
$minify_root = w3_path(W3TC_CACHE_FILE_MINIFY_DIR);
$minify_path = ltrim(str_replace($site_root, rtrim(w3_get_site_path(), '/'), $minify_root), '/');
$urls = $minify->get_urls();
if ($this->_config->get_string('minify.engine') == 'file') {
foreach ($urls as $url) {
w3_http_get($url);
}
$files = $this->search_files($minify_root, $minify_path, '*.css;*.js');
} else {
foreach ($urls as $url) {
$file = w3_normalize_file_minify($url);
$file = w3_translate_file($file);
if (!w3_is_url($file)) {
$file = $document_root . '/' . $file;
$file = ltrim(str_replace($minify_root, '', $file), '/');
$dir = dirname($file);
if ($dir) {
w3_mkdir($dir, 0777, $minify_root);
}
if (w3_download($url, $minify_root . '/' . $file) !== false) {
$files[] = $minify_path . '/' . $file;
}
}
}
}
}
return $files;
}
/**
* Imports library
*
* @param integer $limit
* @param integer $offset
* @param integer $count
* @param integer $total
* @param array $results
* @return boolean
*/
function import_library($limit, $offset, &$count, &$total, &$results)
{
global $wpdb;
$count = 0;
$total = 0;
$results = array();
$site_url = w3_get_site_url();
$upload_info = w3_upload_info();
if ($upload_info) {
$sql = sprintf('SELECT
ID,
post_content,
post_date
FROM
%sposts
WHERE
post_status = "publish"
AND (post_type = "post" OR post_type = "page")
AND (post_content LIKE "%%src=%%"
OR post_content LIKE "%%href=%%")
', $wpdb->prefix);
if ($limit) {
$sql .= sprintf(' LIMIT %d', $limit);
if ($offset) {
$sql .= sprintf(' OFFSET %d', $offset);
}
}
$posts = $wpdb->get_results($sql);
if ($posts) {
$count = count($posts);
$total = $this->get_import_posts_count();
$regexp = $this->get_regexp_by_mask($this->_config->get_string('cdn.import.files'));
$import_external = $this->_config->get_boolean('cdn.import.external');
foreach ($posts as $post) {
$matches = null;
$post_content = $post->post_content;
if (preg_match_all('~(href|src)=[\'"]?([^\'"<>\\s]+)[\'"]?~', $post_content, $matches, PREG_SET_ORDER)) {
foreach ($matches as $match) {
$src = w3_normalize_file($match[2]);
if (preg_match('~(' . $regexp . ')$~', $src)) {
$src_dir = date('Y/m', strtotime($post->post_date));
$src_base = basename($src);
$dst = sprintf('%s/%s/%s', $upload_info['upload_dir'], $src_dir, $src_base);
$dst_dir = dirname($dst);
$dst_path = ABSPATH . $dst;
$dst_url = sprintf('%s%s/%s/%s', $site_url, $upload_info['upload_url'], $src_dir, $src_base);
$result = false;
$error = '';
$download_result = null;
w3_mkdir($dst_dir, 0755, ABSPATH);
// file already exists
if (!file_exists($dst_path)) {
// source is external URL
if (w3_is_url($src)) {
if ($import_external) {
$download_result = $this->download($src, $dst_path);
} else {
$error = 'External file import is disabled';
}
// source is local file not in wp-content/uploads dir
} elseif (strstr($src, $upload_info['upload_dir']) === false) {
$src_path = ABSPATH . $src;
$download_result = @copy($src_path, $dst_path);
// file is already in wp-content/uploads dir
} else {
$error = 'Source file already exists';
}
if ($download_result !== null) {
if ($download_result) {
$title = $src_base;
$guid = $upload_info['upload_url'] . '/' . $title;
$mime_type = w3_get_mime_type($src_base);
$GLOBALS['wp_rewrite'] =& new WP_Rewrite();
$id = wp_insert_attachment(array('post_mime_type' => $mime_type, 'guid' => $guid, 'post_title' => $title, 'post_content' => ''), $dst_path);
if (!is_wp_error($id)) {
require_once ABSPATH . 'wp-admin/includes/image.php';
wp_update_attachment_metadata($id, wp_generate_attachment_metadata($id, $dst_path));
$post_content = str_replace($src, $dst_url, $post_content);
$result = true;
$error = 'OK';
} else {
$error = 'Unable to insert attachment';
}
} else {
$error = 'Unable to download file';
}
}
} else {
$error = 'Destination file already exists';
}
$results[] = array('src' => $src, 'dst' => $dst, 'result' => $result, 'error' => $error);
}
}
}
if ($post_content != $post->post_content) {
wp_update_post(array('ID' => $post->ID, 'post_content' => $post_content));
}
}
}
}
}
/**
* Translates URL to local path
* @param string $url
* @return string
*/
function w3_translate_file($url)
{
if (!w3_is_url($url)) {
$url = w3_get_domain_url() . '/' . ltrim($url, '/\\');
}
$site_url_regexp = '~' . w3_get_site_url_regexp() . '~i';
if (preg_match($site_url_regexp, $url) && strstr($url, '?') === false) {
$url = preg_replace($site_url_regexp, '', $url);
$url = w3_get_site_path() . ltrim($url, '/\\');
}
$url = ltrim($url, '/');
return $url;
}
/**
* Returns minify groups
* @param string $group
* @param string $type
* @return array
*/
function get_groups($group, $type)
{
$result = array();
switch ($type) {
case 'css':
$groups = $this->_config->get_array('minify.css.groups');
break;
case 'js':
$groups = $this->_config->get_array('minify.js.groups');
break;
default:
return $result;
}
if (isset($groups['default'])) {
$locations = (array) $groups['default'];
} else {
$locations = array();
}
if ($group != 'default' && isset($groups[$group])) {
$locations = array_merge_recursive($locations, (array) $groups[$group]);
}
$site_url = w3_get_site_url();
foreach ($locations as $location => $config) {
if (!empty($config['files'])) {
foreach ((array) $config['files'] as $file) {
$file = $this->_normalize_file($file);
if (w3_is_url($file)) {
$precached_file = $this->_precache_file($file, $type);
if ($precached_file) {
$result[$location][$file] = $precached_file;
}
} else {
$result[$location][$file] = '//' . $file;
}
}
}
}
return $result;
}
/**
* URL file filter
*
* @param string $file
* @return bool
*/
public function is_file_for_minification($file)
{
static $external;
$ext = strrchr($file, '.');
if ($ext != '.js' && $ext != '.css') {
return false;
}
if (!isset($external)) {
$external = $this->config->get_array('minify.cache.files');
}
foreach ($external as $ext) {
if (preg_match('#' . w3_get_url_regexp($ext) . '#', $file)) {
return true;
}
}
if (w3_is_url($file)) {
return false;
}
/** @var W3_MinifyFileTool $file_tool */
$file_tool = w3_instance('W3_MinifyFileTool');
$file_tool->setDocumentRoot(w3_get_document_root());
if (!$file_tool->fileExists($file)) {
return false;
}
return true;
}
/**
* Parses sitemap
*
* @param string $url
* @return array
*/
function parse_sitemap($url)
{
w3_require_once(W3TC_INC_DIR . '/functions/http.php');
if (!w3_is_url($url)) {
$url = home_url($url);
}
$urls = array();
$response = w3_http_get($url);
if (!is_wp_error($response) && $response['response']['code'] == 200) {
$url_matches = null;
$sitemap_matches = null;
if (preg_match_all('~<sitemap>(.*?)</sitemap>~is', $response['body'], $sitemap_matches)) {
$loc_matches = null;
foreach ($sitemap_matches[1] as $sitemap_match) {
if (preg_match('~<loc>(.*?)</loc>~is', $sitemap_match, $loc_matches)) {
$loc = trim($loc_matches[1]);
if ($loc) {
$urls = array_merge($urls, $this->parse_sitemap($loc));
}
}
}
} elseif (preg_match_all('~<url>(.*?)</url>~is', $response['body'], $url_matches)) {
$locs = array();
$loc_matches = null;
$priority_matches = null;
foreach ($url_matches[1] as $url_match) {
$loc = '';
$priority = 0;
if (preg_match('~<loc>(.*?)</loc>~is', $url_match, $loc_matches)) {
$loc = trim($loc_matches[1]);
}
if (preg_match('~<priority>(.*?)</priority>~is', $url_match, $priority_matches)) {
$priority = (double) trim($priority_matches[1]);
}
if ($loc && $priority) {
$locs[$loc] = $priority;
}
}
arsort($locs);
$urls = array_keys($locs);
}
}
return $urls;
}
/**
* Uncompresses a minify auto filename into an array of files.
* @param $compressed
* @param $type
* @return array
*/
function uncompress_minify_files($compressed, $type)
{
$no_type_files = array();
$compressed = basename($compressed, '.' . $type);
$uncompressed = $this->_uncompress(base64_decode(strtr($compressed, '-_', '+/')));
$exploded = explode(',', $uncompressed);
$replacements = $this->_minify_path_replacements();
foreach ($exploded as $file) {
if (!w3_is_url($file)) {
$prefix = substr($file, 0, 1);
$after_pre = substr($file, 1, 1);
if (isset($replacements[$prefix]) && $after_pre == '/') {
$file = $replacements[$prefix] . substr($file, 1);
$no_type_files[] = $file;
} else {
$no_type_files[] = $file;
}
} else {
$no_type_files[] = $file;
}
}
$files = array();
foreach ($no_type_files as $no_type_file) {
$file = !w3_is_url($no_type_file) ? $no_type_file . '.' . $type : $no_type_file;
$verified = false;
if (w3_is_url($file)) {
$external = $this->_config->get_array('minify.cache.files');
foreach ($external as $ext) {
if (preg_match('#' . w3_get_url_regexp($ext) . '#', $file) && !$verified) {
$verified = true;
}
}
if (!$verified) {
$this->error(sprintf('Remote file not in external files/libraries list: "%s"', $file));
}
} elseif (strpos($file, '..') != false || strpos($file, '//') !== false || strpos($file, '\\') !== false && strtoupper(substr(PHP_OS, 0, 3)) != 'WIN' || preg_match('/(?:^|[^\\.])\\.\\//', $file) || !preg_match('/^[a-zA-Z0-9_.\\/-]|[\\\\]+$/', $file)) {
$verified = false;
$this->error(sprintf('File path invalid: "%s"', $file));
} else {
$verified = true;
}
if ($verified) {
$files[] = $file;
}
}
return $files;
}
private static function _processUriCB($m)
{
// $m matched either '/@import\\s+([\'"])(.*?)[\'"]/' or '/url\\(\\s*([^\\)\\s]+)\\s*\\)/'
$isImport = $m[0][0] === '@';
// determine URI and the quote character (if any)
if ($isImport) {
$quoteChar = $m[1];
$uri = $m[2];
} else {
// $m[1] is either quoted or not
$quoteChar = $m[1][0] === "'" || $m[1][0] === '"' ? $m[1][0] : '';
$uri = $quoteChar === '' ? $m[1] : substr($m[1], 1, strlen($m[1]) - 2);
}
// analyze URI
if (false === strpos($uri, '//') && 0 !== strpos($uri, 'data:')) {
if (self::$_prependPath !== null) {
if (w3_is_url(self::$_prependPath)) {
$parse_url = @parse_url(self::$_prependPath);
if ($parse_url && isset($parse_url['host'])) {
$scheme = $parse_url['scheme'];
$host = $parse_url['host'];
$port = isset($parse_url['port']) && $parse_url['port'] != 80 ? ':' . (int) $parse_url['port'] : '';
$path = !empty($parse_url['path']) ? $parse_url['path'] : '/';
$dir_css = preg_replace('~[^/]+$~', '', $path);
$dir_obj = preg_replace('~[^/]+$~', '', $uri);
$dir = ltrim(strpos($dir_obj, '/') === 0 ? w3_realpath($dir_obj) : w3_realpath($dir_css . $dir_obj), '/');
$file = basename($uri);
$uri = sprintf('%s://%s%s/%s%s', $scheme, $host, $port, $dir, $file);
}
} else {
$uri = self::$_prependPath . $uri;
}
} else {
$uri = self::rewriteRelative($uri, self::$_currentDir, self::$_docRoot, self::$_symlinks);
}
}
return $isImport ? "@import {$quoteChar}{$uri}{$quoteChar}" : "url({$quoteChar}{$uri}{$quoteChar})";
}
/**
* Remove script tags from the source
*
* @param string $content
* @param array $files
* @return void
*/
function remove_scripts(&$content, $files)
{
$regexps = array();
$home_url_regexp = w3_get_home_url_regexp();
$path = '';
if (w3_is_network() && !w3_is_subdomain_install()) {
$path = ltrim(w3_get_home_path(), '/');
}
foreach ($files as $file) {
if ($path && strpos($file, $path) === 0) {
$file = substr($file, strlen($path));
}
$this->replaced_scripts[] = $file;
if (w3_is_url($file) && !preg_match('~' . $home_url_regexp . '~i', $file)) {
// external JS files
$regexps[] = w3_preg_quote($file);
} else {
// local JS files
$file = ltrim($file, '/');
if (ltrim(w3_get_site_path(), '/') && strpos($file, ltrim(w3_get_site_path(), '/')) === 0) {
$file = str_replace(ltrim(w3_get_site_path(), '/'), '', $file);
}
$file = ltrim(preg_replace('~' . $home_url_regexp . '~i', '', $file), '/\\');
$regexps[] = '(' . $home_url_regexp . ')?/?' . w3_preg_quote($file);
}
}
foreach ($regexps as $regexp) {
$content = preg_replace('~<script\\s+[^<>]*src=["\']?' . $regexp . '["\']?[^<>]*>\\s*</script>~Uis', '', $content);
}
}
/**
* URL file filter
*
* @param string $file
* @return bool
*/
public function is_file_for_minification($file)
{
static $external;
$ext = strrchr($file, '.');
if ($ext != '.js' && $ext != '.css') {
return false;
}
if (!isset($external)) {
$external = $this->config->get_array('minify.cache.files');
}
foreach ($external as $ext) {
if (preg_match('#' . w3_get_url_regexp($ext) . '#', $file)) {
return true;
}
}
if (w3_is_url($file)) {
return false;
}
$path = w3_get_document_root() . '/' . $file;
if (!file_exists($path)) {
return false;
}
return true;
}
