1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
Fosscord: A FOSS re-implementation and extension of the Discord.com backend.
Copyright (C) 2023 Fosscord and Fosscord Contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { Payload, WebSocket } from "@fosscord/gateway";
import fs from "fs/promises";
import path from "path";
import type { ErlpackType } from "@fosscord/util";
let erlpack: ErlpackType | null = null;
try {
erlpack = require("erlpack") as ErlpackType;
} catch (e) {
// empty
}
export function Send(socket: WebSocket, data: Payload) {
if (process.env.WS_VERBOSE)
console.log(`[Websocket] Outgoing message: ${JSON.stringify(data)}`);
if (process.env.WS_DUMP) {
const id = socket.session_id || "unknown";
(async () => {
await fs.mkdir(path.join("dump", id), {
recursive: true,
});
await fs.writeFile(
path.join("dump", id, `${Date.now()}.out.json`),
JSON.stringify(data, null, 2),
);
})();
}
let buffer: Buffer | string;
if (socket.encoding === "etf" && erlpack) buffer = erlpack.pack(data);
// TODO: encode circular object
else if (socket.encoding === "json") buffer = JSON.stringify(data);
else return;
// TODO: compression
if (socket.deflate) {
buffer = socket.deflate.process(buffer) as Buffer;
}
return new Promise((res, rej) => {
if (socket.readyState !== 1) {
// return rej("socket not open");
socket.close();
return;
}
socket.send(buffer, (err) => {
if (err) return rej(err);
return res(null);
});
});
}
|
