diff --git a/src/Server.ts b/src/Server.ts
new file mode 100644
index 00000000..3598c8e1
--- /dev/null
+++ b/src/Server.ts
@@ -0,0 +1,16 @@
+import { db } from "discord-server-util";
+import { Server as WebSocketServer } from "ws";
+import { Connection } from "./events/Connection";
+
+export class Server {
+ public ws: WebSocketServer;
+ constructor() {
+ this.ws = new WebSocketServer({ port: 8080, maxPayload: 4096 });
+ this.ws.on("connection", Connection);
+ }
+
+ async listen(): Promise<void> {
+ await db.init();
+ console.log("listening");
+ }
+}
diff --git a/src/events/Close.ts b/src/events/Close.ts
new file mode 100644
index 00000000..f819b064
--- /dev/null
+++ b/src/events/Close.ts
@@ -0,0 +1,6 @@
+import WebSocket from "ws";
+import { Message } from "./Message";
+
+export function Close(this: WebSocket, code: number, reason: string) {
+ this.off("message", Message);
+}
diff --git a/src/events/Connection.ts b/src/events/Connection.ts
new file mode 100644
index 00000000..815d84cf
--- /dev/null
+++ b/src/events/Connection.ts
@@ -0,0 +1,46 @@
+import WebSocket, { Server } from "../util/WebSocket";
+import { IncomingMessage } from "http";
+import { Close } from "./Close";
+import { Message } from "./Message";
+import { setHeartbeat } from "../util/setHeartbeat";
+import { Send } from "../util/Send";
+import { CLOSECODES, OPCODES } from "../util/Constants";
+
+// TODO: check rate limit
+// TODO: specify rate limit in config
+
+export function Connection(this: Server, socket: WebSocket, request: IncomingMessage) {
+ try {
+ socket.on("close", Close);
+ socket.on("message", Message);
+
+ const { searchParams } = new URL(`http://localhost${request.url}`);
+ // @ts-ignore
+ socket.encoding = searchParams.get("encoding") || "json";
+ if (!["json", "etf"].includes(socket.encoding)) return socket.close(CLOSECODES.Decode_error);
+
+ // @ts-ignore
+ socket.version = Number(searchParams.get("version")) || 8;
+ if (socket.version != 8) return socket.close(CLOSECODES.Invalid_API_version);
+
+ // @ts-ignore
+ socket.compression = searchParams.get("compress") || "";
+ // TODO: compression
+
+ setHeartbeat(socket);
+
+ Send(socket, {
+ op: OPCODES.Hello,
+ d: {
+ heartbeat_interval: 1000 * 30,
+ },
+ });
+
+ socket.readyTimeout = setTimeout(() => {
+ return socket.close(CLOSECODES.Session_timed_out);
+ }, 1000 * 30);
+ } catch (error) {
+ console.error(error);
+ return socket.close(CLOSECODES.Unknown_error);
+ }
+}
diff --git a/src/events/Message.ts b/src/events/Message.ts
new file mode 100644
index 00000000..bc497e94
--- /dev/null
+++ b/src/events/Message.ts
@@ -0,0 +1,36 @@
+import WebSocket, { Data } from "../util/WebSocket";
+import erlpack from "erlpack";
+import OPCodeHandlers from "../opcodes";
+import { Payload, CLOSECODES } from "../util/Constants";
+import { instanceOf } from "lambert-server";
+
+const PayloadSchema = {
+ op: Number,
+ $d: Object,
+ $s: Number,
+ $t: String,
+};
+
+export async function Message(this: WebSocket, buffer: Data) {
+ // TODO: compression
+ var data: Payload;
+
+ try {
+ if (this.encoding === "etf" && buffer instanceof Buffer) data = erlpack.unpack(buffer);
+ else if (this.encoding === "json" && typeof buffer === "string") data = JSON.parse(buffer);
+ if (!instanceOf(PayloadSchema, data)) throw "invalid data";
+ } catch (error) {
+ return this.close(CLOSECODES.Decode_error);
+ }
+
+ // @ts-ignore
+ const OPCodeHandler = OPCodeHandlers[data.op];
+ if (!OPCodeHandler) return this.close(CLOSECODES.Unknown_opcode);
+
+ try {
+ return await OPCodeHandler.call(this, data);
+ } catch (error) {
+ console.error(error);
+ return this.close(CLOSECODES.Unknown_error);
+ }
+}
diff --git a/src/index.ts b/src/index.ts
index 45374721..b267bbfb 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,43 +1,8 @@
-import WebSocket from "ws";
-import DB from "./extras/Database";
-import { message_dev } from "./assets/datastru";
-import { v4 } from "uuid";
+process.on("uncaughtException", console.error);
+process.on("unhandledRejection", console.error);
+setTimeout(() => {}, 100000000);
-class Server {
- db: any;
- constructor() {
- this.db = DB;
- }
+import { Server } from "./Server";
- async listen(): Promise<void> {
- await this.db.init();
- const wss = new WebSocket.Server({ port: 8080 });
-
- wss.on("connection", (ws) => {
- ws.on("message", async (msg: any) => {
- const message: message_dev = msg;
-
- if (message.req_type) {
- switch (message.req_type) {
- case "new_auth":
- const token = v4();
- await this.db.data.auth.push({ token });
- return ws.send({ new_token: token });
- case "check_auth":
- if (!message.token) {
- return ws.send({ error: "token not providen" });
- }
- return this.db.data.auth({ token: message.token }).get();
- }
- } else {
- ws.send({ error: "req_type not providen" });
- }
- });
-
- ws.send("connected");
- });
- }
-}
-
-const s = new Server();
-s.listen();
+const server = new Server();
+server.listen();
diff --git a/src/util/Constants.ts b/src/util/Constants.ts
index cdc0d07d..e8e91d69 100644
--- a/src/util/Constants.ts
+++ b/src/util/Constants.ts
@@ -4,6 +4,7 @@ export enum OPCODES {
Identify,
Presence_Update,
Voice_State_Update,
+ Dummy_Value, // ? What is opcode 5?
Resume,
Reconnect,
Request_Guild_Members,
diff --git a/src/util/Send.ts b/src/util/Send.ts
new file mode 100644
index 00000000..d38865b3
--- /dev/null
+++ b/src/util/Send.ts
@@ -0,0 +1,21 @@
+import erlpack from "erlpack";
+import { promisify } from "util";
+import { Payload } from "../util/Constants";
+
+import WebSocket from "./WebSocket";
+
+export async function Send(socket: WebSocket, data: Payload) {
+ let buffer: Buffer | string;
+ if (socket.encoding === "etf") buffer = erlpack.pack(data);
+ // TODO: encode circular object
+ else if (socket.encoding === "json") buffer = JSON.stringify(data);
+
+ // TODO: compression
+
+ return new Promise((res, rej) => {
+ socket.send(buffer, (err) => {
+ if (err) return rej(err);
+ return res(null);
+ });
+ });
+}
diff --git a/src/util/WebSocket.ts b/src/util/WebSocket.ts
new file mode 100644
index 00000000..41ce8851
--- /dev/null
+++ b/src/util/WebSocket.ts
@@ -0,0 +1,13 @@
+import WS, { Server, Data } from "ws";
+
+interface WebSocket extends WS {
+ version: number;
+ userid: bigint;
+ encoding: "etf" | "json";
+ compress?: "zlib-stream";
+ heartbeatTimeout: NodeJS.Timeout;
+ readyTimeout: NodeJS.Timeout;
+}
+
+export default WebSocket;
+export { Server, Data };
diff --git a/src/util/setHeartbeat.ts b/src/util/setHeartbeat.ts
new file mode 100644
index 00000000..1fe657a8
--- /dev/null
+++ b/src/util/setHeartbeat.ts
@@ -0,0 +1,10 @@
+import WebSocket from "./WebSocket";
+
+// TODO: make heartbeat timeout configurable
+export function setHeartbeat(socket: WebSocket) {
+ if (socket.heartbeatTimeout) clearTimeout(socket.heartbeatTimeout);
+
+ socket.heartbeatTimeout = setTimeout(() => {
+ return socket.close(4009);
+ }, 1000 * 30);
+}
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