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Rev | Author | Line No. | Line |
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87 | office | 1 | <?php |
2 | |||
3 | namespace GuzzleHttp\Adapter\Curl; |
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4 | |||
5 | use GuzzleHttp\Adapter\TransactionInterface; |
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6 | use GuzzleHttp\Event\RequestEvents; |
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7 | use GuzzleHttp\Message\MessageFactoryInterface; |
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8 | use GuzzleHttp\Stream\Stream; |
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9 | use GuzzleHttp\Stream\StreamInterface; |
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10 | |||
11 | /** |
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12 | * Mediator between curl handles and request objects |
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13 | */ |
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14 | class RequestMediator |
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15 | { |
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16 | /** @var TransactionInterface */ |
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17 | private $transaction; |
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18 | /** @var MessageFactoryInterface */ |
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19 | private $messageFactory; |
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20 | private $statusCode; |
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21 | private $reasonPhrase; |
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22 | private $body; |
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23 | private $protocolVersion; |
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24 | private $headers; |
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25 | |||
26 | /** |
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27 | * @param TransactionInterface $transaction Transaction to populate |
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28 | * @param MessageFactoryInterface $messageFactory Creates responses |
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29 | */ |
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30 | public function __construct( |
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31 | TransactionInterface $transaction, |
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32 | MessageFactoryInterface $messageFactory |
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33 | ) { |
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34 | $this->transaction = $transaction; |
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35 | $this->messageFactory = $messageFactory; |
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36 | } |
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37 | |||
38 | /** |
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39 | * Set the body that will hold the response body |
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40 | * |
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41 | * @param StreamInterface $body Response body |
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42 | */ |
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43 | public function setResponseBody(StreamInterface $body = null) |
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44 | { |
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45 | $this->body = $body; |
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46 | } |
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47 | |||
48 | /** |
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49 | * Receive a response header from curl |
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50 | * |
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51 | * @param resource $curl Curl handle |
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52 | * @param string $header Received header |
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53 | * |
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54 | * @return int |
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55 | */ |
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56 | public function receiveResponseHeader($curl, $header) |
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57 | { |
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58 | static $normalize = ["\r", "\n"]; |
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59 | $length = strlen($header); |
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60 | $header = str_replace($normalize, '', $header); |
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61 | |||
62 | if (strpos($header, 'HTTP/') === 0) { |
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63 | $startLine = explode(' ', $header, 3); |
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64 | // Only download the body to a target body when a successful |
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65 | // response is received. |
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66 | if ($startLine[1][0] != '2') { |
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67 | $this->body = null; |
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68 | } |
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69 | $this->statusCode = $startLine[1]; |
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70 | $this->reasonPhrase = isset($startLine[2]) ? $startLine[2] : null; |
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71 | $this->protocolVersion = substr($startLine[0], -3); |
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72 | $this->headers = []; |
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73 | } elseif ($pos = strpos($header, ':')) { |
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74 | $this->headers[substr($header, 0, $pos)][] = substr($header, $pos + 1); |
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75 | } elseif ($header == '' && $this->statusCode >= 200) { |
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76 | $response = $this->messageFactory->createResponse( |
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77 | $this->statusCode, |
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78 | $this->headers, |
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79 | $this->body, |
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80 | [ |
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81 | 'protocol_version' => $this->protocolVersion, |
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82 | 'reason_phrase' => $this->reasonPhrase |
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83 | ] |
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84 | ); |
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85 | $this->headers = $this->body = null; |
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86 | $this->transaction->setResponse($response); |
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87 | // Allows events to react before downloading any of the body |
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88 | RequestEvents::emitHeaders($this->transaction); |
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89 | } |
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90 | |||
91 | return $length; |
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92 | } |
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93 | |||
94 | /** |
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95 | * Write data to the response body of a request |
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96 | * |
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97 | * @param resource $curl |
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98 | * @param string $write |
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99 | * |
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100 | * @return int |
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101 | */ |
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102 | public function writeResponseBody($curl, $write) |
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103 | { |
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104 | if (!($response = $this->transaction->getResponse())) { |
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105 | return 0; |
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106 | } |
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107 | |||
108 | // Add a default body on the response if one was not found |
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109 | if (!($body = $response->getBody())) { |
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110 | $body = new Stream(fopen('php://temp', 'r+')); |
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111 | $response->setBody($body); |
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112 | } |
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113 | |||
114 | return $body->write($write); |
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115 | } |
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116 | |||
117 | /** |
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118 | * Read data from the request body and send it to curl |
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119 | * |
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120 | * @param resource $ch Curl handle |
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121 | * @param resource $fd File descriptor |
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122 | * @param int $length Amount of data to read |
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123 | * |
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124 | * @return string |
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125 | */ |
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126 | public function readRequestBody($ch, $fd, $length) |
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127 | { |
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128 | return (string) $this->transaction->getRequest()->getBody()->read($length); |
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129 | } |
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130 | } |