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server.js
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server.js
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import { MAPLE_VERSION } from './config'
import net from 'net'
import { morphSequence, encryptPacket, getLengthFromHeader, decryptData } from './socket'
import PacketReader from './packets/reader'
import PacketBuilder from './packets/builder'
import { removeCharacterFromMap } from './packets/handlers/helpers'
import mongoose from 'mongoose'
import store from './store'
import { clientConnected, clientDisconnected } from './store/actions/clients'
import { leftMap } from './store/actions/maps'
export function createServer(port, processor, channel, world) {
const server = net.createServer(socket => {
// Send handshake
socket.sendSequence = [82, 48, 120, 115]
socket.receiveSequence = [82, 48, 120, 115]
socket.header = true
socket.nextBlockLength = 4
socket.buffer = new Buffer(0)
socket.server = server
socket.client = {
server: server,
address: socket.address().address
}
socket.client.sendPacket = packet => {
return new Promise((resolve, reject) => {
let data = encryptPacket(packet, socket.sendSequence, -15873)
socket.sendSequence = morphSequence(socket.sendSequence)
socket.write(data, resolve)
})
}
socket.on('data', receivedData => {
socket.pause()
let temp = socket.buffer
socket.buffer = Buffer.concat([temp, receivedData])
while (socket.nextBlockLength <= socket.buffer.length) {
let readingBlock = socket.nextBlockLength
let data = socket.buffer
let block = new Buffer(socket.nextBlockLength)
data.copy(block, 0, 0, block.length)
socket.buffer = new Buffer(data.length - block.length)
data.copy(socket.buffer, 0, block.length);
if (socket.header) {
socket.nextBlockLength = getLengthFromHeader(block)
} else {
socket.nextBlockLength = 4
decryptData(block, socket.receiveSequence)
socket.receiveSequence = morphSequence(socket.receiveSequence)
let reader = new PacketReader(block)
let handler = server.packetHandler[reader.opCode]
if (!!handler) {
try {
handler(socket.client, reader, store.dispatch)
} catch(ex) {
console.error(ex, ex.stack)
}
} else {
console.log('Could not handle opcode', reader.opCode.toString(16))
}
}
socket.header = !socket.header
}
socket.resume()
})
socket.on('end', () => {
if (!!socket.client.character) {
removeCharacterFromMap(socket.client)
store.dispatch(leftMap(server.key, socket.client.character.map, socket.client))
}
store.dispatch(clientDisconnected(server.key, socket.client))
})
var packet = new PacketBuilder()
packet.writeShort(0x0d)
packet.writeShort(MAPLE_VERSION)
packet.writeShort(0)
packet.writeArray(socket.receiveSequence)
packet.writeArray(socket.sendSequence)
packet.write(8)
socket.write(packet.getBufferCopy())
store.dispatch(clientConnected(server.key, socket.client))
})
server.channel = channel
server.world = world
server.key = `${world}_${channel}`
server.startPinger = () => {
var shit = setInterval(() => {
var packet = new PacketBuilder(0x0011);
for (let client of store.getState().clients[server.key]) {
client.sendPacket(packet)
}
}, 15000)
}
server.packetHandler = processor
server.packetHandler[0x0018] = ((client, reader) => {
client.ponged = true
})
// server.startPinger()
server.listen({
host: '0.0.0.0',
port: port
}, () => {
console.log('Listening on port', port)
})
return server
}