/**
* Make API request
*
* @param string $url
* @return string
*/
function _request($url)
{
$request_url = Util_Environment::url_format(W3TC_PAGESPEED_API_URL, array('url' => $url, 'key' => $this->key));
$response = Util_Http::get($request_url, array('timeout' => 120));
if (!is_wp_error($response) && $response['response']['code'] == 200) {
return $response['body'];
}
return false;
}
/**
* Check
*
* @throws Util_WpFile_FilesystemOperationException
* @throws FileOperationException
*/
public function get_ip_ranges()
{
$data = array();
$response = Util_Http::get('https://www.cloudflare.com/ips-v4');
if (!is_wp_error($response)) {
$ip4_data = $response['body'];
$ip4_data = explode("\n", $ip4_data);
$data['ip4'] = $ip4_data;
}
$response = Util_Http::get('https://www.cloudflare.com/ips-v6');
if (!is_wp_error($response)) {
$ip6_data = $response['body'];
$ip6_data = explode("\n", $ip6_data);
$data['ip6'] = $ip6_data;
}
return $data;
}
/**
* Makes get requests to url specific to a post, its permalink
*
* @param unknown $post_id
* @return boolean returns true on success
*/
public function prime_post($post_id)
{
$post_urls = Util_PageUrls::get_post_urls($post_id);
// Make HTTP requests and prime cache
foreach ($post_urls as $url) {
$result = Util_Http::get($url, array('user-agent' => ''));
if (is_wp_error($result)) {
return false;
}
}
return true;
}
/**
* Perform rewrite test
*
* @param string $url
* @return boolean
*/
private function test_rewrite($url)
{
$key = sprintf('w3tc_rewrite_test_%s', substr(md5($url), 0, 16));
$result = get_site_transient($key);
if ($result != 'ok') {
$response = Util_Http::get($url);
$is_ok = !is_wp_error($response) && $response['response']['code'] == 200 && trim($response['body']) == 'OK';
if ($is_ok) {
$result = 'ok';
} else {
$result = is_wp_error($response) ? $response->get_error_message() : implode(' ', $response['response']);
}
set_site_transient($key, $result, 30);
}
return $result;
}
/**
* Pre-caches external file
*
* @param string $url
* @param string $type
* @return string
*/
function _precache_file($url, $type)
{
$lifetime = $this->_config->get_integer('minify.lifetime');
$cache_path = sprintf('%s/minify_%s.%s', Util_Environment::cache_blog_dir('minify'), md5($url), $type);
if (!file_exists($cache_path) || @filemtime($cache_path) < time() - $lifetime) {
if (!@is_dir(dirname($cache_path))) {
Util_File::mkdir_from(dirname($cache_path), W3TC_CACHE_DIR);
}
Util_Http::download($url, $cache_path);
}
return file_exists($cache_path) ? $this->_get_minify_source($cache_path, $url) : false;
}
/**
* Returns theme recommendations
*
* @param string $theme_name
* @return array
*/
function get_theme_recommendations($theme_name)
{
$urls = $this->get_theme_urls($theme_name);
$js_groups = array();
$css_groups = array();
@set_time_limit($this->_config->get_integer('timelimit.minify_recommendations'));
foreach ($urls as $template => $url) {
/**
* Append theme identifier
*/
$url .= (strstr($url, '?') !== false ? '&' : '?') . 'w3tc_theme=' . urlencode($theme_name);
/**
* If preview mode enabled append w3tc_preview
*/
if ($this->_config->is_preview()) {
$url .= '&w3tc_preview=1';
}
/**
* Get page contents
*/
$response = Util_Http::get($url);
if (!is_wp_error($response) && ($response['response']['code'] == 200 || $response['response']['code'] == 404 && $template == '404')) {
$js_files = $this->get_recommendations_js($response['body']);
$css_files = $this->get_recommendations_css($response['body']);
$js_groups[$template] = $js_files;
$css_groups[$template] = $css_files;
}
}
$js_groups = $this->get_theme_recommendations_by_groups($js_groups);
$css_groups = $this->get_theme_recommendations_by_groups($css_groups);
$recommendations = array($js_groups, $css_groups);
return $recommendations;
}
function w3tc_errors($errors)
{
$c = Dispatcher::config();
$state = Dispatcher::config_state();
$cdn_engine = $c->get_string('cdn.engine');
if (Cdn_Util::is_engine_push($cdn_engine)) {
/**
* Show notification if upload queue is not empty
*/
try {
if (!($error = get_transient('w3tc_cdn_error')) && !$this->_is_queue_empty()) {
$errors['cdn_unsuccessful_queue'] = sprintf(__('The %s has unresolved errors. Empty the queue to restore normal operation.', 'w3-total-cache'), Util_Ui::button_popup(__('unsuccessful transfer queue', 'w3-total-cache'), 'cdn_queue'));
} elseif ($error) {
$errors['cdn_generic'] = $error;
}
} catch (\Exception $ex) {
$errors[] = $ex->getMessage();
set_transient('w3tc_cdn_error', $ex->getMessage(), 30);
}
/**
* Check upload settings
*/
$upload_info = Util_Http::upload_info();
if (!$upload_info) {
$upload_path = get_option('upload_path');
$upload_path = trim($upload_path);
if (empty($upload_path)) {
$upload_path = WP_CONTENT_DIR . '/uploads';
$errors['cdn_uploads_folder_empty'] = sprintf(__('The uploads directory is not available. Default WordPress directories will be created: <strong>%s</strong>.', 'w3-total-cache'), $upload_path);
}
if (!Util_Environment::is_wpmu()) {
$errors['cdn_uploads_folder_not_found'] = sprintf(__('The uploads path found in the database (%s) is inconsistent with the actual path. Please manually adjust the upload path either in miscellaneous settings or if not using a custom path %s automatically to resolve the issue.', 'w3-total-cache'), $upload_path, Util_Ui::button_link(__('update the path', 'w3-total-cache'), Util_Ui::url(array('w3tc_config_update_upload_path' => 'y'))));
}
}
}
/**
* Check CDN settings
*/
$error = '';
switch (true) {
case $cdn_engine == 'ftp' && !count($c->get_array('cdn.ftp.domain')):
$errors['cdn_ftp_empty'] = __('A configuration issue prevents <acronym title="Content Delivery Network">CDN</acronym> from working:
The <strong>"Replace default hostname with"</strong>
field cannot be empty. Enter <acronym
title="Content Delivery Network">CDN</acronym>
provider hostname <a href="?page=w3tc_cdn#configuration">here</a>.
<em>(This is the hostname used in order to view objects
in a browser.)</em>', 'w3-total-cache');
break;
case $cdn_engine == 's3' && ($c->get_string('cdn.s3.key') == '' || $c->get_string('cdn.s3.secret') == '' || $c->get_string('cdn.s3.bucket') == ''):
$error = __('The <strong>"Access key", "Secret key" and "Bucket"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case $cdn_engine == 'cf' && ($c->get_string('cdn.cf.key') == '' || $c->get_string('cdn.cf.secret') == '' || $c->get_string('cdn.cf.bucket') == '' || $c->get_string('cdn.cf.id') == '' && !count($c->get_array('cdn.cf.cname'))):
$error = __('The <strong>"Access key", "Secret key", "Bucket" and "Replace default hostname with"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case $cdn_engine == 'cf2' && ($c->get_string('cdn.cf2.key') == '' || $c->get_string('cdn.cf2.secret') == '' || $c->get_string('cdn.cf2.id') == '' && !count($c->get_array('cdn.cf2.cname'))):
$error = __('The <strong>"Access key", "Secret key" and "Replace default hostname with"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case $cdn_engine == 'rscf' && ($c->get_string('cdn.rscf.user') == '' || $c->get_string('cdn.rscf.key') == '' || $c->get_string('cdn.rscf.container') == ''):
$error = __('The <strong>"Username", "API key", "Container" and "Replace default hostname with"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case $cdn_engine == 'azure' && ($c->get_string('cdn.azure.user') == '' || $c->get_string('cdn.azure.key') == '' || $c->get_string('cdn.azure.container') == ''):
$error = __('The <strong>"Account name", "Account key" and "Container"</strong> fields cannot be empty.', 'w3-total-cache');
break;
case $cdn_engine == 'mirror' && !count($c->get_array('cdn.mirror.domain')):
$error = __('The <strong>"Replace default hostname with"</strong> field cannot be empty.', 'w3-total-cache');
break;
case $cdn_engine == 'netdna':
$fields = array();
if ($c->get_string('cdn.netdna.authorization_key') == '') {
$fields[] = '"' . __('Authorization key', 'w3-total-cache') . '"';
}
if (!count($c->get_array('cdn.netdna.domain'))) {
$fields[] = '"' . __('Replace default hostname with', 'w3-total-cache') . '"';
}
if ($fields) {
$error = sprintf(__('The <strong>%s</strong> field(s) cannot be empty.', 'w3-total-cache'), implode(__(' and ', 'w3-total-cache'), $fields));
}
if ($c->get_string('cdn.netdna.authorization_key') != '' && sizeof(explode('+', $c->get_string('cdn.netdna.authorization_key'))) != 3) {
$error .= __('The <strong>"Authorization key"</strong> is not correct.', 'w3-total-cache');
} elseif ($c->get_integer('cdn.netdna.zone_id', 0) <= 0) {
$error .= __('You need to select / create a pull zone.', 'w3-total-cache');
}
break;
case $cdn_engine == 'maxcdn':
$fields = array();
if ($c->get_string('cdn.maxcdn.authorization_key') == '') {
$fields[] = '"' . __('Authorization key', 'w3-total-cache') . '"';
}
if (!count($c->get_array('cdn.maxcdn.domain'))) {
$fields[] = '"' . __('Replace default hostname with', 'w3-total-cache') . '"';
}
if ($fields) {
$error = sprintf(__('The <strong>%s</strong> field(s) cannot be empty.', 'w3-total-cache'), implode(__(' and ', 'w3-total-cache'), $fields));
}
if ($c->get_string('cdn.maxcdn.authorization_key') != '' && sizeof(explode('+', $c->get_string('cdn.maxcdn.authorization_key'))) != 3) {
$error .= __('The <strong>"Authorization key"</strong> is not correct.', 'w3-total-cache');
} elseif ($c->get_integer('cdn.maxcdn.zone_id', 0) <= 0) {
$error .= __('You need to select / create a pull zone.', 'w3-total-cache');
}
break;
case $cdn_engine == 'cotendo' && !count($c->get_array('cdn.cotendo.domain')):
$error = __('The <strong>"Replace default hostname with"</strong> field cannot be empty.', 'w3-total-cache');
break;
case $cdn_engine == 'edgecast' && !count($c->get_array('cdn.edgecast.domain')):
$error = __('The <strong>"Replace default hostname with"</strong> field cannot be empty.', 'w3-total-cache');
break;
case $cdn_engine == 'att' && !count($c->get_array('cdn.att.domain')):
$error = __('The <strong>"Replace default hostname with"</strong> field cannot be empty.', 'w3-total-cache');
break;
case $cdn_engine == 'akamai' && !count($c->get_array('cdn.akamai.domain')):
$error = 'The <strong>"Replace default hostname with"</strong> field cannot be empty.';
break;
}
if ($error) {
$errors['cdn_not_configured'] = __('A configuration issue prevents <acronym title="Content Delivery Network">CDN</acronym> from working: ', 'w3-total-cache') . $error . __(' <a href="?page=w3tc_cdn#configuration">Specify it here</a>.', 'w3-total-cache');
}
return $errors;
}
/**
* Show plugin changes
*
* @return void
*/
function in_plugin_update_message()
{
$response = Util_Http::get(W3TC_README_URL);
if (is_wp_error($response) || $response['response']['code'] != 200) {
return;
}
$matches = null;
$regexp = '~==\\s*Changelog\\s*==\\s*=\\s*[0-9.]+\\s*=(.*)(=\\s*' . preg_quote(W3TC_VERSION) . '\\s*=|$)~Uis';
$body = $response['body'];
if (!preg_match($regexp, $body, $matches)) {
return;
}
$changelog = (array) preg_split('~[\\r\\n]+~', trim($matches[1]));
echo '<div style="color: #f00;">' . __('Take a minute to update, here\'s why:', 'w3-total-cache') . '</div><div style="font-weight: normal;height:300px;overflow:auto">';
$ul = false;
foreach ($changelog as $index => $line) {
if (preg_match('~^\\s*\\*\\s*~', $line)) {
if (!$ul) {
echo '<ul style="list-style: disc; margin-left: 20px;margin-top:0;">';
$ul = true;
}
$line = preg_replace('~^\\s*\\*\\s*~', '', htmlspecialchars($line));
echo '<li style="width: 50%; margin: 0; float: left; ' . ($index % 2 == 0 ? 'clear: left;' : '') . '">' . $line . '</li>';
} else {
if ($ul) {
echo '</ul><div style="clear: left;"></div>';
$ul = false;
}
}
}
if ($ul) {
echo '</ul><div style="clear: left;"></div>';
}
echo '</div>';
}
/**
* Rename domain
*
* @param array $names
* @param integer $limit
* @param integer $offset
* @param integer $count
* @param integer $total
* @param integer $results
* @return void
*/
function rename_domain($names, $limit, $offset, &$count, &$total, &$results)
{
global $wpdb;
@set_time_limit($this->_config->get_integer('timelimit.domain_rename'));
$count = 0;
$total = 0;
$results = array();
$upload_info = Util_Http::upload_info();
foreach ($names as $index => $name) {
$names[$index] = str_ireplace('www.', '', $name);
}
if ($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_rename_posts_count();
$names_quoted = array_map(array('\\W3TC\\Util_Environment', 'preg_quote'), $names);
foreach ($posts as $post) {
$matches = null;
$post_content = $post->post_content;
$regexp = '~(href|src)=[\'"]?(https?://(www\\.)?(' . implode('|', $names_quoted) . ')' . Util_Environment::preg_quote($upload_info['baseurlpath']) . '([^\'"<>\\s]+))[\'"]~';
if (preg_match_all($regexp, $post_content, $matches, PREG_SET_ORDER)) {
foreach ($matches as $match) {
$old_url = $match[2];
$new_url = sprintf('%s/%s', $upload_info['baseurl'], $match[5]);
$post_content = str_replace($old_url, $new_url, $post_content);
$results[] = array('old' => $old_url, 'new' => $new_url, 'result' => true, 'error' => 'OK');
}
}
if ($post_content != $post->post_content) {
wp_update_post(array('ID' => $post->ID, 'post_content' => $post_content));
}
}
}
}
}
/**
* Normalizes attachment file
*
* @param string $file
* @return string
*/
function normalize_attachment_file($file)
{
$upload_info = Util_Http::upload_info();
if ($upload_info) {
$file = ltrim(str_replace($upload_info['basedir'], '', $file), '/\\');
$matches = null;
if (preg_match('~(\\d{4}/\\d{2}/)?[^/]+$~', $file, $matches)) {
$file = $matches[0];
}
}
return $file;
}
/**
* Returns server info
*
* @return array
*/
private function get_server_info()
{
global $wp_version, $wp_db_version, $wpdb;
$wordpress_plugins = get_plugins();
$wordpress_plugins_active = array();
foreach ($wordpress_plugins as $wordpress_plugin_file => $wordpress_plugin) {
if (is_plugin_active($wordpress_plugin_file)) {
$wordpress_plugins_active[$wordpress_plugin_file] = $wordpress_plugin;
}
}
$mysql_version = $wpdb->get_var('SELECT VERSION()');
$mysql_variables_result = (array) $wpdb->get_results('SHOW VARIABLES', ARRAY_N);
$mysql_variables = array();
foreach ($mysql_variables_result as $mysql_variables_row) {
$mysql_variables[$mysql_variables_row[0]] = $mysql_variables_row[1];
}
$server_info = array('w3tc' => array('version' => W3TC_VERSION, 'server' => !empty($_SERVER['SERVER_SOFTWARE']) ? $_SERVER['SERVER_SOFTWARE'] : 'Unknown', 'dir' => W3TC_DIR, 'cache_dir' => W3TC_CACHE_DIR, 'blog_id' => Util_Environment::blog_id(), 'home_domain_root_url' => Util_Environment::home_domain_root_url(), 'home_url_maybe_https' => Util_Environment::home_url_maybe_https(), 'site_path' => Util_Environment::site_path(), 'document_root' => Util_Environment::document_root(), 'site_root' => Util_Environment::site_root(), 'site_url_uri' => Util_Environment::site_url_uri(), 'home_url_host' => Util_Environment::home_url_host(), 'home_url_uri' => Util_Environment::home_url_uri(), 'network_home_url_uri' => Util_Environment::network_home_url_uri(), 'host_port' => Util_Environment::host_port(), 'host' => Util_Environment::host(), 'wp_config_path' => Util_Environment::wp_config_path()), 'wp' => array('version' => $wp_version, 'db_version' => $wp_db_version, 'abspath' => ABSPATH, 'home' => get_option('home'), 'siteurl' => get_option('siteurl'), 'email' => get_option('admin_email'), 'upload_info' => (array) Util_Http::upload_info(), 'theme' => Util_Theme::get_current_theme(), 'wp_cache' => defined('WP_CACHE') && WP_CACHE ? 'true' : 'false', 'plugins' => $wordpress_plugins_active), 'mysql' => array('version' => $mysql_version, 'variables' => $mysql_variables));
return $server_info;
}
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 = $regexps;
}
function _request($varnish_server, $url)
{
$parse_url = @parse_url($url);
if (!$parse_url || !isset($parse_url['host'])) {
return new \WP_Error('http_request_failed', 'Unrecognized URL format ' . $url);
}
$host = $parse_url['host'];
$port = isset($parse_url['port']) ? (int) $parse_url['port'] : 80;
$path = !empty($parse_url['path']) ? $parse_url['path'] : '/';
$query = isset($parse_url['query']) ? $parse_url['query'] : '';
$request_uri = $path . ($query != '' ? '?' . $query : '');
if (strpos($varnish_server, ':')) {
list($varnish_host, $varnish_port) = explode(':', $varnish_server);
} else {
$varnish_host = $varnish_server;
$varnish_port = 80;
}
// if url host is the same as varnish server - we can use regular
// wordpress http infrastructure, otherwise custom request should be
// sent using fsockopen, since we send request to other server than
// specified by $url
if ($host == $varnish_host && $port == $varnish_port) {
return Util_Http::request($url, array('method' => 'PURGE'));
}
$request_headers_array = array(sprintf('PURGE %s HTTP/1.1', $request_uri), sprintf('Host: %s', $host), sprintf('User-Agent: %s', W3TC_POWERED_BY), 'Connection: close');
$request_headers = implode("\r\n", $request_headers_array);
$request = $request_headers . "\r\n\r\n";
// log what we are about to do
$this->_log($url, sprintf('Connecting to %s ...', $varnish_host));
$this->_log($url, sprintf('PURGE %s HTTP/1.1', $request_uri));
$this->_log($url, sprintf('Host: %s', $host));
$errno = null;
$errstr = null;
$fp = @fsockopen($varnish_host, $varnish_port, $errno, $errstr, 10);
if (!$fp) {
return new \WP_Error('http_request_failed', $errno . ': ' . $errstr);
}
@stream_set_timeout($fp, 60);
@fputs($fp, $request);
$response = '';
while (!@feof($fp)) {
$response .= @fgets($fp, 4096);
}
@fclose($fp);
list($response_headers, $contents) = explode("\r\n\r\n", $response, 2);
$matches = null;
if (preg_match('~^HTTP/1.[01] (\\d+)~', $response_headers, $matches)) {
$code = (int) $matches[1];
$a = explode("\n", $response_headers);
$status = count($a) >= 1 ? $a[0] : '';
$return = array('response' => array('code' => $code, 'status' => $status));
return $return;
}
return new \WP_Error('http_request_failed', 'Unrecognized response header' . $response_headers);
}