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<?php |
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namespace Basis; |
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use Basis\Context; |
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use Exception; |
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use GuzzleHttp\Client; |
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class Dispatcher |
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{ |
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protected $client; |
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protected $context; |
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protected $service; |
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public function __construct(Client $client, Context $context, Service $service) |
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{ |
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$this->client = $client; |
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$this->context = $context; |
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$this->service = $service; |
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} |
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public function dispatch(string $job, array $params = [], string $service = null, $context = null) |
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{ |
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return $this->dispatchAsync($job, $params, $service, $context)->wait(); |
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} |
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public function dispatchAsync(string $job, array $params = [], string $service = null, $context = null) |
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{ |
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if ($service === null) { |
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$service = $this->getServiceName($job); |
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} |
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$url = $this->getUrl($service, $job); |
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View Code Duplication |
if (is_array($params) && array_key_exists('eventId', $params)) { |
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$url .= '/'.$params['eventId']; |
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} |
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if (!$context) { |
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$context = $this->getContext(); |
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} |
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$response = $this->client->postAsync($url, [ |
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'multipart' => [ |
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[ |
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'name' => 'rpc', |
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'contents' => json_encode([ |
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'context' => $context, |
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'job' => $job, |
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'params' => $params, |
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]) |
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] |
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] |
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]); |
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return $response->then(function ($response) { |
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$contents = $response->getBody(); |
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if (!$contents) { |
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throw new Exception("Host $host ($service) is unreachable"); |
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} |
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$result = json_decode($contents); |
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if (!$result || !$result->success) { |
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$exception = new Exception($result->message ?: $contents); |
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if ($result->trace) { |
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$exception->remoteTrace = $result->trace; |
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} |
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throw $exception; |
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} |
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return $result->data; |
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}); |
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} |
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protected function getContext() : array |
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{ |
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$context = get_object_vars($this->context); |
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if (array_key_exists('HTTP_X_REAL_IP', $_SERVER)) { |
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$context['host'] = $_SERVER['HTTP_X_REAL_IP']; |
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} |
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if (array_key_exists('HTTP_X_SESSION', $_SERVER)) { |
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$context['session'] = $_SERVER['HTTP_X_SESSION']; |
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} |
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return $context; |
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} |
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protected function getServiceName(string $job) : string |
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{ |
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return explode('.', $job)[0]; |
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} |
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protected function getUrl(string $service, string $job) : string |
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{ |
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$host = $this->service->getHost($service)->address; |
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return "http://$host/api/" . str_replace('.', '/', $job); |
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} |
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public function send(string $job, array $params = [], string $service = null, $context = null) |
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{ |
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if ($service === null) { |
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$service = $this->getServiceName($job); |
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} |
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$url = $this->getUrl($service, $job); |
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View Code Duplication |
if (is_array($params) && array_key_exists('eventId', $params)) { |
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$url .= '/'.$params['eventId']; |
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} |
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if (!$context) { |
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$context = $this->getContext(); |
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} |
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$rpc = [ |
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'context' => $context, |
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'job' => $job, |
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'params' => $params, |
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]; |
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$content = 'rpc='.urlencode(json_encode($rpc)); |
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$parts = parse_url($url); |
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$port = isset($parts['port']) ? $parts['port'] : 80; |
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$fp = fsockopen($parts['host'], $port, $errno, $errstr, 30); |
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if (!$fp) { |
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return false; |
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} |
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$parts = [ |
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"POST " . $parts['path'] . " HTTP/1.1", |
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"Host: " . $parts['host'], |
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]; |
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if (array_key_exists('HTTP_X_REAL_IP', $_SERVER)) { |
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$parts[] = "X-Real-Ip: ".$_SERVER['HTTP_X_REAL_IP']; |
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} |
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if (array_key_exists('HTTP_X_SESSION', $_SERVER)) { |
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$parts[] = "X-Session: ".$_SERVER['HTTP_X_SESSION']; |
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} |
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$parts = array_merge($parts, [ |
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"Content-Type: application/x-www-form-urlencoded", |
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"Content-Length: " . strlen($content), |
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"Connection: Close", |
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"", |
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isset($content) ? $content : '', |
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]); |
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fwrite($fp, implode("\r\n", $parts)); |
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fclose($fp); |
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return true; |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.