/**
* Run react/http server for incoming GitHub webhook events
*
* @param LoopInterface $loop
* @param int $port
* @param string $ip
*/
private function runServer(LoopInterface $loop, $port = 8080, $ip = '0.0.0.0')
{
// Set up react HTTP server to listen for github webhooks
$socket = new \React\Socket\Server($loop);
$http = new \React\Http\Server($socket, $loop);
$http->on('request', function ($request, $response) {
$headers = $request->getHeaders();
$path = $request->getPath();
$hook = substr($path, 1);
// Basic check if we got event and signature headers
if (empty($headers['X-GitHub-Event'])) {
$response->writeHead(500, ['Content-Type' => 'text/plain']);
$response->end("Missing event header\n");
$this->plugin->getLogger()->error("Received request with missing event header");
return;
}
if (empty($headers['X-Hub-Signature'])) {
$response->writeHead(500, ['Content-Type' => 'text/plain']);
$response->end("Missing signature\n");
$this->plugin->getLogger()->error("Received request with missing signature header");
return;
}
// Check if the hook actually exists
if (empty($hook)) {
$response->writeHead(500, ['Content-Type' => 'text/plain']);
$response->end("Missing hook name\n");
$this->plugin->getLogger()->error("Received request with missing hook name, check out the plugin README");
return;
}
$hooks = $this->plugin->getHooks();
if (!isset($hooks[$hook])) {
$response->writeHead(500, ['Content-Type' => 'text/plain']);
$response->end("Missing hook name\n");
$this->plugin->getLogger()->error("{$hook} does not match any defined hooks in the plugin configuration, check out the plugin README");
return;
}
// Okay the request
$response->writeHead(200, ['Content-Type' => 'text/plain']);
$response->end("OK\n");
// Get incoming JSON payload
$payload = "";
$request->on('data', function ($data) use(&$payload) {
$payload .= $data;
});
// Wait for the end of data burst
$request->on('end', function () use(&$payload, $headers, $hook) {
$raw_payload = $payload;
// Parse json payload to PHP array
$payload = json_decode($payload, TRUE);
if (!$payload) {
$this->plugin->getLogger()->error(sprintf("Unable to parse payload: %s", json_last_error_msg()));
$this->plugin->getLogger()->debug('Payload: ' . var_export($payload, TRUE));
return;
}
// Verify signature
$hooks = $this->plugin->getHooks();
if (!empty($hooks[$hook]['secret'])) {
list($algo, $signature) = explode("=", $headers['X-Hub-Signature']);
if (hash_hmac($algo, $raw_payload, $hooks[$hook]['secret']) != $signature) {
$this->plugin->getLogger()->error("Invalid signature, void request");
return;
}
} else {
$this->plugin->getLogger()->warning("No secret set for {$hook}, seriously consider setting one");
}
$this->plugin->getEventEmitter()->emit("githubhooks.{$hook}.{$headers['X-GitHub-Event']}", [$payload]);
});
});
$socket->listen($port, $ip);
}
/**
* Tests that getSubscribedEvents() returns an array.
*/
public function testGetSubscribedEvents()
{
$plugin = new Plugin();
$this->assertInternalType('array', $plugin->getSubscribedEvents());
}