/**
* Purge content
*
* @param string $path
* @param int $type
* @param string $error
* @return boolean
*/
function _purge_content($path, $type, &$error)
{
$url = sprintf(W3TC_CDN_EDGECAST_PURGE_URL, $this->_config['account']);
$args = array('method' => 'PUT', 'user-agent' => W3TC_POWERED_BY, 'headers' => array('Accept' => 'application/json', 'Content-Type' => 'application/json', 'Authorization' => sprintf('TOK:%s', $this->_config['token'])), 'body' => json_encode(array('MediaPath' => $path, 'MediaType' => $type)));
$response = nxt_remote_request($url, $args);
if (is_nxt_error($response)) {
$error = implode('; ', $response->get_error_messages());
return false;
}
switch ($response['response']['code']) {
case 200:
return true;
case 400:
$error = 'Invalid Request Parameter';
return false;
case 403:
$error = 'Authentication Failure or Insufficient Access Rights';
return false;
case 404:
$error = 'Invalid Request URI';
return false;
case 405:
$error = 'Invalid Request';
return false;
case 500:
$error = 'Server Error';
return false;
}
$error = 'Unknown error';
return false;
}
function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false)
{
$this->url = $url;
$this->timeout = $timeout;
$this->redirects = $redirects;
$this->headers = $headers;
$this->useragent = $useragent;
$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE;
if (preg_match('/^http(s)?:\\/\\//i', $url)) {
$args = array('timeout' => $this->timeout, 'redirection' => $this->redirects);
if (!empty($this->headers)) {
$args['headers'] = $this->headers;
}
if (SIMPLEPIE_USERAGENT != $this->useragent) {
//Use default nxt user agent unless custom has been specified
$args['user-agent'] = $this->useragent;
}
$res = nxt_remote_request($url, $args);
if (is_nxt_error($res)) {
$this->error = 'nxt HTTP Error: ' . $res->get_error_message();
$this->success = false;
} else {
$this->headers = nxt_remote_retrieve_headers($res);
$this->body = nxt_remote_retrieve_body($res);
$this->status_code = nxt_remote_retrieve_response_code($res);
}
} else {
if (!($this->body = file_get_contents($url))) {
$this->error = 'file_get_contents could not read the file';
$this->success = false;
}
}
}
/**
* Sends HTTP request
*
* @param $url string
* @param $args array
* @return nxt_Error|array
*/
function w3_http_request($url, $args = array())
{
$args = array_merge(array('user-agent' => W3TC_POWERED_BY), $args);
return nxt_remote_request($url, $args);
}
/**
* Perform a HTTP HEAD or GET request.
*
* If $file_path is a writable filename, this will do a GET request and write
* the file to that path.
*
* @since 2.5.0
*
* @param string $url URL to fetch.
* @param string|bool $file_path Optional. File path to write request to.
* @param int $red (private) The number of Redirects followed, Upon 5 being hit, returns false.
* @return bool|string False on failure and string of headers if HEAD request.
*/
function nxt_get_http($url, $file_path = false, $red = 1)
{
@set_time_limit(60);
if ($red > 5) {
return false;
}
$options = array();
$options['redirection'] = 5;
if (false == $file_path) {
$options['method'] = 'HEAD';
} else {
$options['method'] = 'GET';
}
$response = nxt_remote_request($url, $options);
if (is_nxt_error($response)) {
return false;
}
$headers = nxt_remote_retrieve_headers($response);
$headers['response'] = nxt_remote_retrieve_response_code($response);
// nxt_HTTP no longer follows redirects for HEAD requests.
if ('HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset($headers['location'])) {
return nxt_get_http($headers['location'], $file_path, ++$red);
}
if (false == $file_path) {
return $headers;
}
// GET request - write it to the supplied filename
$out_fp = fopen($file_path, 'w');
if (!$out_fp) {
return $headers;
}
fwrite($out_fp, nxt_remote_retrieve_body($response));
fclose($out_fp);
clearstatcache();
return $headers;
}
/**
* GET URL
*
* @param string $url
* @param string $username
* @param string $password
* @param bool $head
* @return array
*/
function get_page($url, $username = '', $password = '', $head = false)
{
// Increase the timeout
add_filter('http_request_timeout', array(&$this, 'bump_request_timeout'));
$headers = array();
$args = array();
if (true === $head) {
$args['method'] = 'HEAD';
}
if (!empty($username) && !empty($password)) {
$headers['Authorization'] = 'Basic ' . base64_encode("{$username}:{$password}");
}
$args['headers'] = $headers;
return nxt_remote_request($url, $args);
}
