diff --git a/src/gateway/events/Close.ts b/src/gateway/events/Close.ts
new file mode 100644
index 00000000..40d9a6f7
--- /dev/null
+++ b/src/gateway/events/Close.ts
@@ -0,0 +1,47 @@
+import { WebSocket } from "@fosscord/gateway";
+import {
+ emitEvent,
+ PresenceUpdateEvent,
+ PrivateSessionProjection,
+ Session,
+ SessionsReplace,
+ User,
+} from "@fosscord/util";
+
+export async function Close(this: WebSocket, code: number, reason: string) {
+ console.log("[WebSocket] closed", code, reason);
+ if (this.heartbeatTimeout) clearTimeout(this.heartbeatTimeout);
+ if (this.readyTimeout) clearTimeout(this.readyTimeout);
+ this.deflate?.close();
+ this.inflate?.close();
+ this.removeAllListeners();
+
+ if (this.session_id) {
+ await Session.delete({ session_id: this.session_id });
+ const sessions = await Session.find({
+ where: { user_id: this.user_id },
+ select: PrivateSessionProjection,
+ });
+ await emitEvent({
+ event: "SESSIONS_REPLACE",
+ user_id: this.user_id,
+ data: sessions,
+ } as SessionsReplace);
+ const session = sessions.first() || {
+ activities: [],
+ client_info: {},
+ status: "offline",
+ };
+
+ await emitEvent({
+ event: "PRESENCE_UPDATE",
+ user_id: this.user_id,
+ data: {
+ user: await User.getPublicUser(this.user_id),
+ activities: session.activities,
+ client_status: session?.client_info,
+ status: session.status,
+ },
+ } as PresenceUpdateEvent);
+ }
+}
diff --git a/src/gateway/events/Connection.ts b/src/gateway/events/Connection.ts
new file mode 100644
index 00000000..bed3cf44
--- /dev/null
+++ b/src/gateway/events/Connection.ts
@@ -0,0 +1,84 @@
+import WS from "ws";
+import { WebSocket } from "@fosscord/gateway";
+import { Send } from "../util/Send";
+import { CLOSECODES, OPCODES } from "../util/Constants";
+import { setHeartbeat } from "../util/Heartbeat";
+import { IncomingMessage } from "http";
+import { Close } from "./Close";
+import { Message } from "./Message";
+import { Deflate, Inflate } from "fast-zlib";
+import { URL } from "url";
+import { Config } from "@fosscord/util";
+var erlpack: any;
+try {
+ erlpack = require("@yukikaze-bot/erlpack");
+} catch (error) {}
+
+// TODO: check rate limit
+// TODO: specify rate limit in config
+// TODO: check msg max size
+
+export async function Connection(
+ this: WS.Server,
+ socket: WebSocket,
+ request: IncomingMessage
+) {
+ const forwardedFor = Config.get().security.forwadedFor;
+ const ipAddress = forwardedFor ? request.headers[forwardedFor] as string : request.socket.remoteAddress;
+
+ socket.ipAddress = ipAddress;
+
+ try {
+ // @ts-ignore
+ socket.on("close", Close);
+ // @ts-ignore
+ socket.on("message", Message);
+ console.log(`[Gateway] New connection from ${socket.ipAddress}, total ${this.clients.size}`);
+
+ const { searchParams } = new URL(`http://localhost${request.url}`);
+ // @ts-ignore
+ socket.encoding = searchParams.get("encoding") || "json";
+ if (!["json", "etf"].includes(socket.encoding)) {
+ if (socket.encoding === "etf" && erlpack) {
+ throw new Error(
+ "Erlpack is not installed: 'npm i @yukikaze-bot/erlpack'"
+ );
+ }
+ return socket.close(CLOSECODES.Decode_error);
+ }
+
+ socket.version = Number(searchParams.get("version")) || 8;
+ if (socket.version != 8)
+ return socket.close(CLOSECODES.Invalid_API_version);
+
+ // @ts-ignore
+ socket.compress = searchParams.get("compress") || "";
+ if (socket.compress) {
+ if (socket.compress !== "zlib-stream")
+ return socket.close(CLOSECODES.Decode_error);
+ socket.deflate = new Deflate();
+ socket.inflate = new Inflate();
+ }
+
+ socket.events = {};
+ socket.member_events = {};
+ socket.permissions = {};
+ socket.sequence = 0;
+
+ setHeartbeat(socket);
+
+ await 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/gateway/events/Message.ts b/src/gateway/events/Message.ts
new file mode 100644
index 00000000..db7dbad2
--- /dev/null
+++ b/src/gateway/events/Message.ts
@@ -0,0 +1,74 @@
+import { CLOSECODES, OPCODES } from "../util/Constants";
+import { WebSocket, Payload } from "@fosscord/gateway";
+var erlpack: any;
+try {
+ erlpack = require("@yukikaze-bot/erlpack");
+} catch (error) { }
+import OPCodeHandlers from "../opcodes";
+import { Tuple } from "lambert-server";
+import { check } from "../opcodes/instanceOf";
+import WS from "ws";
+import BigIntJson from "json-bigint";
+import * as Sentry from "@sentry/node";
+const bigIntJson = BigIntJson({ storeAsString: true });
+
+const PayloadSchema = {
+ op: Number,
+ $d: new Tuple(Object, Number), // or number for heartbeat sequence
+ $s: Number,
+ $t: String,
+};
+
+export async function Message(this: WebSocket, buffer: WS.Data) {
+ // TODO: compression
+ var data: Payload;
+
+ if (this.encoding === "etf" && buffer instanceof Buffer)
+ data = erlpack.unpack(buffer);
+ else if (this.encoding === "json" && buffer instanceof Buffer) {
+ if (this.inflate) {
+ try {
+ buffer = this.inflate.process(buffer) as any;
+ } catch {
+ buffer = buffer.toString() as any;
+ }
+ }
+ data = bigIntJson.parse(buffer as string);
+ }
+ else if (typeof buffer == "string") {
+ data = bigIntJson.parse(buffer as string)
+ }
+ else return;
+
+ check.call(this, PayloadSchema, data);
+
+ // @ts-ignore
+ const OPCodeHandler = OPCodeHandlers[data.op];
+ if (!OPCodeHandler) {
+ console.error("[Gateway] Unkown opcode " + data.op);
+ // TODO: if all opcodes are implemented comment this out:
+ // this.close(CLOSECODES.Unknown_opcode);
+ return;
+ }
+
+ // const transaction = Sentry.startTransaction({
+ // op: OPCODES[data.op],
+ // name: `GATEWAY ${OPCODES[data.op]}`,
+ // data: {
+ // ...data.d,
+ // token: data?.d?.token ? "[Redacted]" : undefined,
+ // },
+ // });
+
+ try {
+ var ret = await OPCodeHandler.call(this, data);
+ // transaction.finish();
+ return ret;
+ } catch (error) {
+ Sentry.captureException(error);
+ // transaction.finish();
+ console.error(`Error: Op ${data.op}`, error);
+ // if (!this.CLOSED && this.CLOSING)
+ return this.close(CLOSECODES.Unknown_error);
+ }
+}
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