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import WebSocket from "@fosscord/gateway/util/WebSocket";
var erlpack: any;
try {
erlpack = require("erlpack");
} catch (error) {}
import OPCodeHandlers from "../opcodes";
import { Payload, CLOSECODES, OPCODES } from "@fosscord/gateway/util/Constants";
import { instanceOf, Tuple } from "lambert-server";
import { check } from "../opcodes/instanceOf";
import WS from "ws";
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" && typeof buffer === "string")
data = JSON.parse(buffer);
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;
}
console.log("[Gateway] Opcode " + OPCODES[data.op]);
try {
return await OPCodeHandler.call(this, data);
} catch (error) {
console.error(error);
if (!this.CLOSED && this.CLOSING)
return this.close(CLOSECODES.Unknown_error);
}
}
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