AstralTransRocketries/node-minecraft-protocol
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passing test: server kicks clients that do not send keepalive packets

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This commit is contained in:
Andrew Kelley 2013-01-04 21:53:51 -05:00
parent 150c89cc6d
commit 68b29db639
2 changed files with 54 additions and 25 deletions
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47
index.js
View File

@ -34,7 +34,6 @@ function createServer(options) {
server.on("connection", function(client) {
client.once(0xfe, onPing);
client.on(0x02, onHandshake);
client.on(0x00, onKeepAlive);
client.on('end', onEnd);
var keepAlive = false;
@ -49,19 +48,28 @@ function createServer(options) {
}
function keepAliveLoop() {
if (keepAlive) {
// check if the last keepAlive was too long ago (kickTimeout)
if (lastKeepAlive) {
var elapsed = new Date() - lastKeepAlive;
if (elapsed > kickTimeout) {
client.end('KeepAliveTimeout');
return;
}
}
client.write(0x00, {
keepAliveId: Math.floor(Math.random() * 2147483648)
});
if (! keepAlive) return;
// check if the last keepAlive was too long ago (kickTimeout)
var elapsed = new Date() - lastKeepAlive;
if (elapsed > kickTimeout) {
client.end('KeepAliveTimeout');
return;
}
client.write(0x00, {
keepAliveId: Math.floor(Math.random() * 2147483648)
});
}
function onKeepAlive(packet) {
lastKeepAlive = new Date();
}
function startKeepAlive() {
keepAlive = true;
lastKeepAlive = new Date();
keepAliveTimer = setInterval(keepAliveLoop, checkTimeoutInterval);
client.on(0x00, onKeepAlive);
}
function onEnd() {
@ -69,14 +77,6 @@ function createServer(options) {
clearTimeout(loginKickTimer);
}
function onKeepAlive(packet) {
if (keepAlive) {
lastKeepAlive = new Date();
} else {
lastKeepAlive = null;
}
}
function onPing(packet) {
if (loggedIn) return;
client.write(0xff, {
@ -94,12 +94,11 @@ function createServer(options) {
function onHandshake(packet) {
assert.ok(! onlineMode);
loggedIn = true;
keepAlive = true;
client.username = packet.username;
startKeepAlive();
clearTimeout(loginKickTimer);
loginKickTimer = null;
keepAliveTimer = setInterval(keepAliveLoop, checkTimeoutInterval);
server.emit('login', client);
}
@ -115,7 +114,7 @@ function createClient(options) {
var host = options.host || 'localhost';
assert.ok(options.username, "username is required");
var haveCredentials = options.email && options.password;
var keepAlive = !!options.keepAlive;
var keepAlive = options.keepAlive == null ? true : options.keepAlive;
var client = new Client({
isServer: false

32
test/test.js
View File

@ -233,7 +233,7 @@ describe("client", function() {
});
});
});
describe("server", function() {
describe("mc-server", function() {
it("starts listening and shuts down cleanly", function(done) {
var server = mc.createServer({ 'online-mode': false });
var listening = false;
@ -275,6 +275,36 @@ describe("server", function() {
if (count <= 0) done();
}
});
it("kicks clients that do not send keepalive packets", function(done) {
var server = mc.createServer({
'online-mode': false,
kickTimeout: 100,
checkTimeoutInterval: 10,
});
var count = 2;
server.on('connection', function(client) {
client.on('end', function(reason) {
assert.strictEqual(reason, "KeepAliveTimeout");
server.close();
});
});
server.on('close', function() {
resolve();
});
server.on('listening', function() {
var client = mc.createClient({
username: 'superpants',
keepAlive: false,
});
client.on('end', function() {
resolve();
});
});
function resolve() {
count -= 1;
if (count <= 0) done();
}
});
it("responds to ping requests", function(done) {
var server = mc.createServer({
'online-mode': false,