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- 06.01.2017
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StreamClient.php
01 <?php
02
03 namespace OAuth\Common\Http\Client;
04
05 use OAuth\Common\Http\Exception\TokenResponseException;
06 use OAuth\Common\Http\Uri\UriInterface;
07
08 /**
09 * Client implementation for streams/file_get_contents
10 */
11 class StreamClient extends AbstractClient
12 {
13 /**
14 * Any implementing HTTP providers should send a request to the provided endpoint with the parameters.
15 * They should return, in string form, the response body and throw an exception on error.
16 *
17 * @param UriInterface $endpoint
18 * @param mixed $requestBody
19 * @param array $extraHeaders
20 * @param string $method
21 *
22 * @return string
23 *
24 * @throws TokenResponseException
25 * @throws \InvalidArgumentException
26 */
27 public function retrieveResponse(
28 UriInterface $endpoint,
29 $requestBody,
30 array $extraHeaders = array(),
31 $method = 'POST'
32 ) {
33 // Normalize method name
34 $method = strtoupper($method);
35
36 $this->normalizeHeaders($extraHeaders);
37
38 if ($method === 'GET' && !empty($requestBody)) {
39 throw new \InvalidArgumentException('No body expected for "GET" request.');
40 }
41
42 if (!isset($extraHeaders['Content-Type']) && $method === 'POST' && is_array($requestBody)) {
43 $extraHeaders['Content-Type'] = 'Content-Type: application/x-www-form-urlencoded';
44 }
45
46 $host = 'Host: '.$endpoint->getHost();
47 // Append port to Host if it has been specified
48 if ($endpoint->hasExplicitPortSpecified()) {
49 $host .= ':'.$endpoint->getPort();
50 }
51
52 $extraHeaders['Host'] = $host;
53 $extraHeaders['Connection'] = 'Connection: close';
54
55 if (is_array($requestBody)) {
56 $requestBody = http_build_query($requestBody, '', '&');
57 }
58 $extraHeaders['Content-length'] = 'Content-length: '.strlen($requestBody);
59
60 $context = $this->generateStreamContext($requestBody, $extraHeaders, $method);
61
62 $level = error_reporting(0);
63 $response = file_get_contents($endpoint->getAbsoluteUri(), false, $context);
64 error_reporting($level);
65 if (false === $response) {
66 $lastError = error_get_last();
67 if (is_null($lastError)) {
68 throw new TokenResponseException(
69 'Failed to request resource. HTTP Code: ' .
70 ((isset($http_response_header[0]))?$http_response_header[0]:'No response')
71 );
72 }
73 throw new TokenResponseException($lastError['message']);
74 }
75
76 return $response;
77 }
78
79 private function generateStreamContext($body, $headers, $method)
80 {
81 return stream_context_create(
82 array(
83 'http' => array(
84 'method' => $method,
85 'header' => implode("\r\n", array_values($headers)),
86 'content' => $body,
87 'protocol_version' => '1.1',
88 'user_agent' => $this->userAgent,
89 'max_redirects' => $this->maxRedirects,
90 'timeout' => $this->timeout
91 ),
92 )
93 );
94 }
95 }
96