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added hook for before client receives ping

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createServer takes additional option 'beforePing' which is a function
receiving the response to send back to the client and the client object,
and returning a modified response to send back.
The client now has the serverHost, serverPort, and protocolVersion
pulled from the handshake packet. This can be used to proxy
the client to different backend servers depending on the domain name.
This commit is contained in:
Brian Schlenker 2015-03-26 01:50:57 -07:00
parent 273f685267
commit a773bb13e7
1 changed files with 10 additions and 0 deletions
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10
src/index.js
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@ -44,6 +44,9 @@ function createServer(options) {
var kickTimeout = options.kickTimeout || 10 * 1000;
var checkTimeoutInterval = options.checkTimeoutInterval || 4 * 1000;
var onlineMode = options['online-mode'] == null ? true : options['online-mode'];
// a function receiving the default status object and the client
// and returning a modified response object.
var beforePing = options.beforePing || null;
var serverKey = ursa.generatePrivateKey(1024);
@ -117,6 +120,10 @@ function createServer(options) {
"favicon": server.favicon
};
if (beforePing) {
response = beforePing(response, client) || response;
}
client.once([states.STATUS, 0x01], function(packet) {
client.write(0x01, { time: packet.time });
client.end();
@ -151,6 +158,9 @@ function createServer(options) {
}
function onHandshake(packet) {
client.serverHost = packet.serverHost;
client.serverPort = packet.serverPort;
client.protocolVersion = packet.protocolVersion;
if (packet.nextState == 1) {
client.state = states.STATUS;
} else if (packet.nextState == 2) {