/**
* Makes ip_lkup API request
*
* @param string $ip
* @return object
*/
public function ip_lkup($ip)
{
@set_time_limit($this->_timelimit_api_request);
$response = Util_Http::request('https://www.cloudflare.com/api_json.html', array('method' => 'POST', 'body' => array('a' => 'ip_lkup', 'tkn' => $this->_key, 'email' => $this->_email, 'ip' => $ip)));
if (isset($response['body'])) {
return @json_decode($response['body']);
}
return null;
}
function _request($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);
}