/**
* Retrieve information about the authentication
*
* Will get the realm and other tokens by performing
* another request without authentication to get authentication
* challenge.
*
* @param \Cake\Http\Client\Request $request The request object.
* @param array $credentials Authentication credentials.
* @return array modified credentials.
*/
protected function _getServerInfo(Request $request, $credentials)
{
$response = $this->_client->get($request->url(), [], ['auth' => []]);
if (!$response->getHeader('WWW-Authenticate')) {
return [];
}
preg_match_all('@(\\w+)=(?:(?:")([^"]+)"|([^\\s,$]+))@', $response->getHeaderLine('WWW-Authenticate'), $matches, PREG_SET_ORDER);
foreach ($matches as $match) {
$credentials[$match[1]] = $match[2];
}
if (!empty($credentials['qop']) && empty($credentials['nc'])) {
$credentials['nc'] = 1;
}
return $credentials;
}
/**
* Sorts and normalizes request data and oauthValues
*
* Section 9.1.1 of Oauth spec.
*
* - URL encode keys + values.
* - Sort keys & values by byte value.
*
* @param \Cake\Http\Client\Request $request The request object.
* @param array $oauthValues Oauth values.
* @return string sorted and normalized values
*/
protected function _normalizedParams($request, $oauthValues)
{
$query = parse_url($request->url(), PHP_URL_QUERY);
parse_str($query, $queryArgs);
$post = [];
$body = $request->body();
if (is_string($body) && $request->getHeaderLine('content-type') === 'application/x-www-form-urlencoded') {
parse_str($body, $post);
}
if (is_array($body)) {
$post = $body;
}
$args = array_merge($queryArgs, $oauthValues, $post);
uksort($args, 'strcmp');
$pairs = [];
foreach ($args as $k => $val) {
if (is_array($val)) {
sort($val, SORT_STRING);
foreach ($val as $nestedVal) {
$pairs[] = "{$k}={$nestedVal}";
}
} else {
$pairs[] = "{$k}={$val}";
}
}
return implode('&', $pairs);
}
/**
* Open the stream and send the request.
*
* @param \Cake\Http\Client\Request $request The request object.
* @return array Array of populated Response objects
* @throws \Cake\Core\Exception\Exception
*/
protected function _send(Request $request)
{
$deadline = false;
if (isset($this->_contextOptions['timeout']) && $this->_contextOptions['timeout'] > 0) {
$deadline = time() + $this->_contextOptions['timeout'];
}
$url = $request->url();
$this->_open($url);
$content = '';
$timedOut = false;
while (!feof($this->_stream)) {
if ($deadline !== false) {
stream_set_timeout($this->_stream, max($deadline - time(), 1));
}
$content .= fread($this->_stream, 8192);
$meta = stream_get_meta_data($this->_stream);
if ($meta['timed_out'] || $deadline !== false && time() > $deadline) {
$timedOut = true;
break;
}
}
$meta = stream_get_meta_data($this->_stream);
fclose($this->_stream);
if ($timedOut) {
throw new Exception('Connection timed out ' . $url);
}
$headers = $meta['wrapper_data'];
if (isset($headers['headers']) && is_array($headers['headers'])) {
$headers = $headers['headers'];
}
return $this->createResponses($headers, $content);
}
