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<?php |
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namespace PhpJsonRpc\Client; |
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use PhpJsonRpc\Error\ConnectionFailureException; |
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class HttpTransport extends AbstractTransport |
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{ |
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/** |
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* @var string |
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*/ |
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private $url; |
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/** |
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* @var int |
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*/ |
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private $timeout; |
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/** |
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* @var array |
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*/ |
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private $headers = [ |
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'User-Agent: PhpJsonRpc client <https://github.com/vaderangry/PhpJsonRpc>', |
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'Content-Type: application/json', |
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'Accept: application/json', |
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'Connection: close', |
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]; |
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/** |
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* HttpEngine constructor. |
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* |
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* @param string $url URL of RPC server |
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* @param int $timeout HTTP timeout |
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*/ |
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public function __construct(string $url, int $timeout = null) |
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{ |
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parent::__construct(); |
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$this->url = $url; |
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$this->timeout = $timeout ?? 5; |
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} |
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/** |
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* Send request |
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* |
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* @param string $request |
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* |
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* @return string |
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*/ |
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public function send(string $request): string |
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{ |
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$stream = fopen(trim($this->url), 'rb', false, $this->buildContext($request)); |
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if (!is_resource($stream)) { |
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throw new ConnectionFailureException('Unable to establish a connection'); |
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} |
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return stream_get_contents($stream); |
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} |
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/** |
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* Add headers to any request |
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* |
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* @param array $headers |
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*/ |
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public function addHeaders(array $headers) |
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{ |
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$this->headers = array_merge($this->headers, $headers); |
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} |
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/** |
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* @param string $payload |
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* @return resource |
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*/ |
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private function buildContext(string $payload) |
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{ |
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$options = array( |
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'http' => array( |
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'method' => 'POST', |
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'protocol_version' => 1.1, |
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'timeout' => $this->timeout, |
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'max_redirects' => 2, |
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'header' => implode("\r\n", $this->headers), |
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'content' => $payload, |
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'ignore_errors' => true, |
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) |
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); |
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return stream_context_create($options); |
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} |
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} |
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vaderangry /
PhpJsonRpc
