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- 27.10.2014
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CurlClient.php
001 <?php
002 namespace OAuth\Common\Http\Client;
003
004 use OAuth\Common\Http\Exception\TokenResponseException;
005 use OAuth\Common\Http\Uri\UriInterface;
006
007 /**
008 * Client implementation for cURL
009 */
010 class CurlClient extends AbstractClient
011 {
012 /**
013 * If true, explicitly sets cURL to use SSL version 3. Use this if cURL
014 * compiles with GnuTLS SSL.
015 *
016 * @var bool
017 */
018 private $forceSSL3 = false;
019
020 /**
021 * @param bool $force
022 * @return CurlClient
023 */
024 public function setForceSSL3($force)
025 {
026 $this->forceSSL3 = $force;
027 return $this;
028 }
029
030 /**
031 * Any implementing HTTP providers should send a request to the provided endpoint with the parameters.
032 * They should return, in string form, the response body and throw an exception on error.
033 *
034 * @param UriInterface $endpoint
035 * @param mixed $requestBody
036 * @param array $extraHeaders
037 * @param string $method
038 * @return string
039 * @throws TokenResponseException
040 * @throws \InvalidArgumentException
041 */
042 public function retrieveResponse(UriInterface $endpoint, $requestBody, array $extraHeaders = array(), $method = 'POST')
043 {
044 // Normalize method name
045 $method = strtoupper($method);
046
047 $this->normalizeHeaders($extraHeaders);
048
049 if( $method === 'GET' && !empty($requestBody) ) {
050 throw new \InvalidArgumentException('No body expected for "GET" request.');
051 }
052
053 if( !isset($extraHeaders['Content-type'] ) && $method === 'POST' && is_array($requestBody) ) {
054 $extraHeaders['Content-type'] = 'Content-type: application/x-www-form-urlencoded';
055 }
056
057 $extraHeaders['Host'] = 'Host: '.$endpoint->getHost();
058 $extraHeaders['Connection'] = 'Connection: close';
059
060 $ch = curl_init();
061
062 curl_setopt($ch, CURLOPT_URL, $endpoint->getAbsoluteUri());
063
064 if( $method === 'POST' || $method === 'PUT' ) {
065 if( $requestBody && is_array($requestBody) ) {
066 $requestBody = http_build_query($requestBody, null, '&');
067 }
068
069 if( $method === 'PUT' ) {
070 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT');
071 } else {
072 curl_setopt($ch, CURLOPT_POST, true);
073 }
074
075 curl_setopt($ch, CURLOPT_POSTFIELDS, $requestBody);
076 } else {
077 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
078 }
079
080 if( $this->maxRedirects > 0 ) {
081 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
082 curl_setopt($ch, CURLOPT_MAXREDIRS, $this->maxRedirects);
083 }
084
085 curl_setopt($ch, CURLOPT_TIMEOUT, $this->timeout);
086 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
087 curl_setopt($ch, CURLOPT_HEADER, false);
088 curl_setopt($ch, CURLOPT_HTTPHEADER, $extraHeaders);
089
090 if( $this->forceSSL3 ) {
091 curl_setopt($ch, CURLOPT_SSLVERSION, 3);
092 }
093
094 $response = curl_exec($ch);
095 $responseCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
096
097 if( false === $response ) {
098 $errNo = curl_errno($ch);
099 $errStr = curl_error($ch);
100 curl_close($ch);
101 if (empty($errStr)) {
102 throw new TokenResponseException( 'Failed to request resource.', $responseCode );
103 }
104 throw new TokenResponseException( 'cURL Error # '.$errNo.': '.$errStr, $responseCode );
105 }
106
107 curl_close($ch);
108
109 return $response;
110 }
111 }
112