/**
* Pre-caches external file
*
* @param string $url
* @param string $type
* @return string
*/
function _precache_file($url, $type)
{
$lifetime = $this->_config->get_integer('minify.lifetime');
$cache_path = sprintf('%s/minify_%s.%s', w3_cache_blog_dir('minify'), md5($url), $type);
if (!file_exists($cache_path) || @filemtime($cache_path) < time() - $lifetime) {
w3_require_once(W3TC_INC_DIR . '/functions/http.php');
if (!@is_dir(dirname($cache_path))) {
w3_require_once(W3TC_INC_DIR . '/functions/file.php');
w3_mkdir_from(dirname($cache_path), W3TC_CACHE_DIR);
}
w3_download($url, $cache_path);
}
return file_exists($cache_path) ? $this->_get_minify_source($cache_path, $url) : false;
}
/**
* 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));
}
}
}
}
}
/**
* Pre-caches external file
*
* @param string $url
* @param string $type
* @return string
*/
function _precache_file($url, $type)
{
$lifetime = $this->_config->get_integer('minify.lifetime');
$cache_path = sprintf('%s/minify_%s.%s', W3TC_CACHE_FILE_MINIFY_DIR, md5($url), $type);
if (!file_exists($cache_path) || @filemtime($cache_path) < time() - $lifetime) {
require_once W3TC_INC_DIR . '/functions/http.php';
w3_download($url, $cache_path);
}
return file_exists($cache_path) ? $this->_get_minify_source($cache_path, $url) : false;
}
/**
* 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;
}
/**
* Exports min files to CDN
*/
function get_files_minify()
{
$files = array();
if (W3TC_PHP5) {
require_once W3TC_LIB_W3_DIR . '/Plugin/Minify.php';
$minify =& W3_Plugin_Minify::instance();
$urls = $minify->get_urls();
foreach ($urls as $url) {
$file = basename($url);
if (w3_download($url, W3TC_CONTENT_MINIFY_DIR . '/' . $file) !== false) {
$files[] = W3TC_CONTENT_MINIFY_DIR_NAME . '/' . $file;
}
}
}
return $files;
}
/**
* Precaches external file
*
* @param string $url
* @param string $type
* @return string
*/
function _precache_file($url, $type)
{
$lifetime = $this->_config->get_integer('minify.lifetime');
$file_path = sprintf('%s/minify_%s.%s', W3TC_CACHE_FILE_MINIFY_DIR, md5($url), $type);
$file_exists = file_exists($file_path);
if ($file_exists && @filemtime($file_path) >= time() - $lifetime) {
return $this->_get_minify_source($file_path, $url);
}
if (is_dir(W3TC_CACHE_FILE_MINIFY_DIR)) {
if (w3_download($url, $file_path) !== false) {
return $this->_get_minify_source($file_path, $url);
} else {
$this->log(sprintf('Unable to download URL: %s', $url));
}
} else {
$this->log(sprintf('The cache directory %s does not exist', W3TC_CACHE_FILE_MINIFY_DIR));
}
return $file_exists ? $this->_get_minify_source($file_path, $url) : false;
}
