<?php
namespace OAuth\Common\Http\Client;
use OAuth\Common\Http\Exception\TokenResponseException;
use OAuth\Common\Http\Uri\UriInterface;
/**
* Client implementation for streams/file_get_contents
*/
class StreamClient extends AbstractClient
{
/**
* Any implementing HTTP providers should send a request to the provided endpoint with the parameters.
* They should return, in string form, the response body and throw an exception on error.
*
* @param UriInterface $endpoint
* @param mixed $requestBody
* @param array $extraHeaders
* @param string $method
*
* @return string
*
* @throws TokenResponseException
* @throws \InvalidArgumentException
*/
public function retrieveResponse(
UriInterface $endpoint,
$requestBody,
array $extraHeaders = array(),
$method = 'POST'
) {
// Normalize method name
$method = strtoupper($method);
$this->normalizeHeaders($extraHeaders);
if ($method === 'GET' && !empty($requestBody)) {
throw new \InvalidArgumentException('No body expected for "GET" request.');
}
if (!isset($extraHeaders['Content-Type']) && $method === 'POST' && is_array($requestBody)) {
$extraHeaders['Content-Type'] = 'Content-Type: application/x-www-form-urlencoded';
}
$host = 'Host: '.$endpoint->getHost();
// Append port to Host if it has been specified
if ($endpoint->hasExplicitPortSpecified()) {
$host .= ':'.$endpoint->getPort();
}
$extraHeaders['Host'] = $host;
$extraHeaders['Connection'] = 'Connection: close';
if (is_array($requestBody)) {
$requestBody = http_build_query($requestBody, '', '&');
}
$extraHeaders['Content-length'] = 'Content-length: '.strlen($requestBody);
$context = $this->generateStreamContext($requestBody, $extraHeaders, $method);
$level = error_reporting(0);
$response = file_get_contents($endpoint->getAbsoluteUri(), false, $context);
error_reporting($level);
if (false === $response) {
$lastError = error_get_last();
if (is_null($lastError)) {
throw new TokenResponseException(
'Failed to request resource. HTTP Code: ' .
((isset($http_response_header[0]))?$http_response_header[0]:'No response')
);
}
throw new TokenResponseException($lastError['message']);
}
return $response;
}
private function generateStreamContext($body, $headers, $method)
{
return stream_context_create(
array(
'http' => array(
'method' => $method,
'header' => implode("\r\n", array_values($headers)),
'content' => $body,
'protocol_version' => '1.1',
'user_agent' => $this->userAgent,
'max_redirects' => $this->maxRedirects,
'timeout' => $this->timeout
),
)
);
}
}