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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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