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mock-disconnect-server.js
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mock-disconnect-server.js
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const net = require('net');
const tls = require('tls');
const fs = require('fs');
const pkt = require('./packet.js');
const HOST = '127.0.0.1';
const TCP_PORT = 4000;
const TLS_PORT = TCP_PORT+1;
const HEARTBEAT_INTERVAL = 2;
let heartbeatInterval;
let clientDisconnected = false;
function processPacket(packet, clientSocket) {
console.log('processing packet');
switch (packet.type) {
case pkt.PacketType.Handshake:
pkt.sendHandshakeResponse(clientSocket);
break;
case pkt.PacketType.HandshakeAck:
console.log('RECEIVED HANDSHAKE ACK');
if (clientDisconnected && !heartbeatInterval) {
heartbeatInterval = setInterval(() => {
if (clientSocket && !clientSocket.destroyed) {
pkt.sendHeartbeat(clientSocket);
}
}, 2000);
}
break;
case pkt.PacketType.Data: /* Ignore */ break;
case pkt.PacketType.Heartbeat: /* expected */ break;
}
}
function processBuffer(buffer, socket) {
console.log(`Received ${buffer.length} bytes of data`);
console.log('Decoding packets...');
const rawPackets = new pkt.RawPackets(buffer);
const packets = rawPackets.decode();
console.log(`Decoded ${packets.length} packet(s)`);
for (let p of packets) {
processPacket(p, socket);
}
}
const tcpServer = net.createServer((socket) => {
console.log('======= New TCP Connection ========');
socket.on('data', (buffer) => {
clientDisconnected = false;
processBuffer(buffer, socket);
});
socket.on('end', () => {
clientDisconnected = true;
console.log('Client disconnected :(');
});
socket.on('error', () => {
clientDisconnected = true;
clearTimeout(handshakeTimeout);
console.log('Client disconnected with error :(');
});
});
const tlsOptions = {
key: fs.readFileSync('../../fixtures/server/pitaya.key'),
cert: fs.readFileSync('../../fixtures/server/pitaya.crt'),
rejectUnauthorized: false,
};
const tlsServer = tls.createServer(tlsOptions, (socket) => {
console.log('======= New TLS Connection ========');
console.log(socket.authorized ? 'Authorized' : 'Unauthorized');
socket.on('data', (buffer) => {
clientDisconnected = false;
processBuffer(buffer, socket);
});
socket.on('end', () => {
clientDisconnected = true;
console.log('Client disconnected :(');
});
socket.on('error', () => {
clientDisconnected = true;
clearTimeout(handshakeTimeout);
console.log('Client disconnected with error :(');
});
});
tcpServer.listen(TCP_PORT, HOST, () => {
console.log(`TCP server on ${HOST}:${TCP_PORT}`);
});
tlsServer.listen(TLS_PORT, HOST, () => {
console.log(`TLS server on ${HOST}:${TLS_PORT}`);
});
pkt.encodeHanshakeAndHeartbeatResponse(HEARTBEAT_INTERVAL);