/**
* 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;
}
/**
* 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;
}
/**
* 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>';
}
/**
* Exports min files to CDN
*
* @return array
*/
function get_files_minify()
{
$files = array();
if ($this->_config->get_boolean('minify.rewrite') && Util_Rule::can_check_rules() && (!$this->_config->get_boolean('minify.auto') || Cdn_Util::is_engine_mirror($this->_config->get_string('cdn.engine')))) {
$minify = Dispatcher::component('Minify_Plugin');
$document_root = Util_Environment::document_root();
$minify_root = Util_Environment::cache_blog_dir('minify');
$minify_path = ltrim(str_replace($document_root, '', $minify_root), '/');
$urls = $minify->get_urls();
// in WPMU + network admin (this code used for minify manual only)
// common minify files are stored under context of main blog (i.e. 1)
// but have urls of 0 blog, so download has to be used
if ($this->_config->get_string('minify.engine') == 'file' && !(Util_Environment::is_wpmu() && is_network_admin())) {
foreach ($urls as $url) {
Util_Http::get($url);
}
$files = Cdn_Util::search_files($minify_root, $minify_path, '*.css;*.js');
} else {
foreach ($urls as $url) {
$file = Util_Environment::normalize_file_minify($url);
$file = Util_Environment::translate_file($file);
if (!Util_Environment::is_url($file)) {
$file = $document_root . '/' . $file;
$file = ltrim(str_replace($minify_root, '', $file), '/');
$dir = dirname($file);
if ($dir) {
Util_File::mkdir($dir, 0777, $minify_root);
}
if (Util_Http::download($url, $minify_root . '/' . $file) !== false) {
$files[] = $minify_path . '/' . $file;
}
}
}
}
}
return $files;
}
