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mirror of https://github.com/spacebarchat/server.git synced 2024-09-22 02:31:36 +02:00

Merge pull request #162 from fosscord/feat--rate-limit

[Feature] Rate Limit
This commit is contained in:
Flam3rboy 2021-07-01 16:02:54 +02:00 committed by GitHub
commit 7b31ca10b3
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7 changed files with 177 additions and 328 deletions

349
package-lock.json generated
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"integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==",
"dev": true
},
"yallist": {
"version": "3.1.1",
"resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
"integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==",
"dev": true
}
}
},
"is-accessor-descriptor": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz",
@ -14568,15 +14331,6 @@
"is-extglob": "^2.1.1"
}
},
"is-ip": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/is-ip/-/is-ip-3.1.0.tgz",
"integrity": "sha512-35vd5necO7IitFPjd/YBeqwWnyDWbuLH9ZXQdMfDA8TEo7pv5X8yfrvVO3xbJbLUlERCMvf6X0hTUamQxCYJ9Q==",
"dev": true,
"requires": {
"ip-regex": "^4.0.0"
}
},
"is-number": {
"version": "7.0.0",
"resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
@ -15774,11 +15528,6 @@
"integrity": "sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==",
"dev": true
},
"mimic-response": {
"version": "2.1.0",
"resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-2.1.0.tgz",
"integrity": "sha512-wXqjST+SLt7R009ySCglWBCFpjUygmCIfD790/kVbiGmUgfYGuB14PiTd5DwVxSV4NcYHjzMkoj5LjQZwTQLEA=="
},
"minimalistic-assert": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
@ -16004,11 +15753,6 @@
"integrity": "sha512-nU7mOEuaXiQIB/EgTIjYZJ7g8KqMm2D8l4qp+DqA4jxWOb/tnb1KEoqp+tlbdQIDIAiC1i7j7X/3yHDFXLxr9g==",
"dev": true
},
"nan": {
"version": "2.14.2",
"resolved": "https://registry.npmjs.org/nan/-/nan-2.14.2.tgz",
"integrity": "sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ=="
},
"nanoassert": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/nanoassert/-/nanoassert-1.1.0.tgz",
@ -17090,6 +16834,22 @@
"is-finite": "^1.0.0"
}
},
"require_optional": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz",
"integrity": "sha512-qhM/y57enGWHAe3v/NcwML6a3/vfESLe/sGM2dII+gEO0BpKRUkWZow/tyloNqJyN6kXSl3RyyM8Ll5D/sJP8g==",
"requires": {
"resolve-from": "^2.0.0",
"semver": "^5.1.0"
},
"dependencies": {
"resolve-from": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz",
"integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c="
}
}
},
"require-directory": {
"version": "2.1.1",
"resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
@ -17601,17 +17361,8 @@
"simple-concat": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/simple-concat/-/simple-concat-1.0.1.tgz",
"integrity": "sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q=="
},
"simple-get": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/simple-get/-/simple-get-3.1.0.tgz",
"integrity": "sha512-bCR6cP+aTdScaQCnQKbPKtJOKDp/hj9EDLJo3Nw4y1QksqaovlW/bnptB6/c1e+qmNIDHRK+oXFDdEqBT8WzUA==",
"requires": {
"decompress-response": "^4.2.0",
"once": "^1.3.1",
"simple-concat": "^1.0.0"
}
"integrity": "sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q==",
"dev": true
},
"single-line-log": {
"version": "1.1.2",
@ -18708,12 +18459,6 @@
}
}
},
"url-join": {
"version": "4.0.0",
"resolved": "https://registry.npmjs.org/url-join/-/url-join-4.0.0.tgz",
"integrity": "sha1-TTNA6AfTdzvamZH4MFrNzCpmXSo=",
"dev": true
},
"use": {
"version": "3.1.1",
"resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",

View File

@ -29,7 +29,7 @@
},
"homepage": "https://github.com/fosscord/fosscord-api#readme",
"dependencies": {
"@fosscord/server-util": "^1.3.20",
"@fosscord/server-util": "^1.3.23",
"@types/jest": "^26.0.22",
"@types/json-schema": "^7.0.7",
"ajv": "^8.4.0",
@ -49,7 +49,6 @@
"i18next-http-middleware": "^3.1.3",
"i18next-node-fs-backend": "^2.1.3",
"image-size": "^1.0.0",
"ipdata": "^1.1.3",
"jsonwebtoken": "^8.5.1",
"lambert-server": "^1.2.5",
"missing-native-js-functions": "^1.2.6",
@ -57,7 +56,8 @@
"mongoose-autopopulate": "^0.12.3",
"mongoose-long": "^0.3.2",
"multer": "^1.4.2",
"node-fetch": "^2.6.1"
"node-fetch": "^2.6.1",
"require_optional": "^1.0.1"
},
"devDependencies": {
"@types/bcrypt": "^3.0.0",

View File

@ -13,6 +13,7 @@ import express, { Router, Request, Response } from "express";
import fetch, { Response as FetchResponse } from "node-fetch";
import mongoose from "mongoose";
import path from "path";
import RateLimit from "./middlewares/RateLimit";
// this will return the new updated document for findOneAndUpdate
mongoose.set("returnOriginal", false); // https://mongoosejs.com/docs/api/model.html#model_Model.findOneAndUpdate
@ -54,7 +55,8 @@ export class FosscordServer extends Server {
db.collection("roles").createIndex({ id: 1 }, { unique: true }),
db.collection("emojis").createIndex({ id: 1 }, { unique: true }),
db.collection("invites").createIndex({ code: 1 }, { unique: true }),
db.collection("invites").createIndex({ expires_at: 1 }, { expireAfterSeconds: 0 }) // after 0 seconds of expires_at the invite will get delete
db.collection("invites").createIndex({ expires_at: 1 }, { expireAfterSeconds: 0 }), // after 0 seconds of expires_at the invite will get delete
db.collection("ratelimits").createIndex({ expires_at: 1 }, { expireAfterSeconds: 0 })
]);
}
@ -91,6 +93,10 @@ export class FosscordServer extends Server {
const prefix = Router();
// @ts-ignore
this.app = prefix;
prefix.use(RateLimit({ bucket: "global", count: 10, error: 10, window: 5, bot: 250 }));
prefix.use("/guilds/:id", RateLimit({ count: 10, window: 5 }));
prefix.use("/webhooks/:id", RateLimit({ count: 10, window: 5 }));
prefix.use("/channels/:id", RateLimit({ count: 10, window: 5 }));
this.routes = await this.registerRoutes(path.join(__dirname, "routes", "/"));
app.use("/api", prefix); // allow unversioned requests

View File

@ -11,10 +11,14 @@ export const NO_AUTHORIZATION_ROUTES = [
/^\/api(\/v\d+)?\/guilds\/\d+\/widget\.(json|png)/
];
export const API_PREFIX = /^\/api(\/v\d+)?/;
export const API_PREFIX_TRAILING_SLASH = /^\/api(\/v\d+)?\//;
declare global {
namespace Express {
interface Request {
user_id: any;
user_bot: boolean;
token: any;
}
}
@ -23,17 +27,19 @@ declare global {
export async function Authentication(req: Request, res: Response, next: NextFunction) {
if (req.method === "OPTIONS") return res.sendStatus(204);
if (!req.url.startsWith("/api")) return next();
if (req.url.startsWith("/api/v8/invites") && req.method === "GET") return next();
const apiPath = req.url.replace(API_PREFIX, "");
if (apiPath.startsWith("/invites") && req.method === "GET") return next();
if (NO_AUTHORIZATION_ROUTES.some((x) => x.test(req.url))) return next();
if (!req.headers.authorization) return next(new HTTPError("Missing Authorization Header", 401));
try {
const { jwtSecret } = Config.get().security;
const decoded: any = await checkToken(req.headers.authorization, jwtSecret);
const { decoded, user }: any = await checkToken(req.headers.authorization, jwtSecret);
req.token = decoded;
req.user_id = decoded.id;
req.user_bot = user.bot;
return next();
} catch (error) {
return next(new HTTPError(error.toString(), 400));

View File

@ -1,7 +1,16 @@
import { db, MongooseCache } from "@fosscord/server-util";
import { db, MongooseCache, Bucket } from "@fosscord/server-util";
import { NextFunction, Request, Response } from "express";
import { getIpAdress } from "../util/ipAddress";
import { API_PREFIX_TRAILING_SLASH } from "./Authentication";
const Cache = new MongooseCache(db.collection("ratelimits"), [{ $match: { blocked: true } }], { onlyEvents: false, array: true });
const Cache = new MongooseCache(
db.collection("ratelimits"),
[
// TODO: uncomment $match and fix error: not receiving change events
// { $match: { blocked: true } }
],
{ onlyEvents: false, array: true }
);
// Docs: https://discord.com/developers/docs/topics/rate-limits
@ -22,10 +31,100 @@ TODO: use config values
*/
export default function RateLimit(opts: { bucket?: string; window: number; count: number }) {
export default function RateLimit(opts: {
bucket?: string;
window: number;
count: number;
bot?: number;
error?: number;
webhook?: number;
oauth?: number;
GET?: number;
MODIFY?: number;
}) {
Cache.init(); // will only initalize it once
return async (req: Request, res: Response, next: NextFunction) => {
const bucket_id = opts.bucket || req.path.replace(API_PREFIX_TRAILING_SLASH, "");
const user_id = req.user_id || getIpAdress(req);
var max_hits = opts.count;
if (opts.bot && req.user_bot) max_hits = opts.bot;
if (opts.GET && ["GET", "OPTIONS", "HEAD"].includes(req.method)) max_hits = opts.GET;
else if (opts.MODIFY && ["POST", "DELETE", "PATCH", "PUT"].includes(req.method)) max_hits = opts.MODIFY;
const offender = Cache.data?.find((x: Bucket) => x.user_id == user_id && x.id === bucket_id) as Bucket | null;
if (offender && offender.blocked) {
const reset = offender.expires_at.getTime();
const resetAfterMs = reset - Date.now();
const resetAfterSec = resetAfterMs / 1000;
const global = bucket_id === "global";
console.log("blocked", { resetAfterMs });
if (resetAfterMs > 0) {
return (
res
.status(429)
.set("X-RateLimit-Limit", `${max_hits}`)
.set("X-RateLimit-Remaining", "0")
.set("X-RateLimit-Reset", `${reset}`)
.set("X-RateLimit-Reset-After", `${resetAfterSec}`)
.set("X-RateLimit-Global", `${global}`)
.set("Retry-After", `${Math.ceil(resetAfterSec)}`)
.set("X-RateLimit-Bucket", `${bucket_id}`)
// TODO: error rate limit message translation
.send({ message: "You are being rate limited.", retry_after: resetAfterSec, global })
);
} else {
// mongodb ttl didn't update yet -> manually update/delete
db.collection("ratelimits").updateOne(
{ id: bucket_id, user_id },
{ $set: { hits: 0, expires_at: new Date(Date.now() + opts.window * 1000), blocked: false } }
);
}
}
next();
if (opts.error) {
res.once("finish", () => {
// check if error and increment error rate limit
if (res.statusCode >= 400) {
// TODO: use config rate limit values
return hitRoute({ bucket_id: "error", user_id, max_hits: opts.error as number, window: opts.window });
}
});
}
return hitRoute({ user_id, bucket_id, max_hits, window: opts.window });
};
}
function hitRoute(opts: { user_id: string; bucket_id: string; max_hits: number; window: number }) {
return db.collection("ratelimits").updateOne(
{ id: opts.bucket_id, user_id: opts.user_id },
[
{
$replaceRoot: {
newRoot: {
// similar to $setOnInsert
$mergeObjects: [
{
id: opts.bucket_id,
user_id: opts.user_id,
expires_at: new Date(Date.now() + opts.window * 1000)
},
"$$ROOT"
]
}
}
},
{
$set: {
hits: { $sum: [{ $ifNull: ["$hits", 0] }, 1] },
blocked: { $gt: ["$hits", opts.max_hits] }
}
}
],
{ upsert: true }
);
}

View File

@ -1,9 +1,8 @@
import { Request, Response, Router } from "express";
import { GuildModel } from "@fosscord/server-util";
import { HTTPError } from "lambert-server";
import { Image } from "canvas";
import fs from "fs";
import path from "path"
import path from "path";
const router: Router = Router();
@ -35,7 +34,7 @@ router.get("/", async (req: Request, res: Response) => {
const sizeOf = require("image-size");
// TODO: Widget style templates need Fosscord branding
const source = path.join(__dirname, "..", "..", "..", "..", "assets","widget", `${style}.png`)
const source = path.join(__dirname, "..", "..", "..", "..", "assets", "widget", `${style}.png`);
if (!fs.existsSync(source)) {
throw new HTTPError("Widget template does not exist.", 400);
}
@ -85,7 +84,8 @@ router.get("/", async (req: Request, res: Response) => {
});
async function drawIcon(canvas: any, x: number, y: number, scale: number, icon: string) {
const img = new Image();
// @ts-ignore
const img = new require("canvas").Image();
img.src = icon;
// Do some canvas clipping magic!

View File

@ -1,13 +1,7 @@
import { Config } from "@fosscord/server-util";
import { Request } from "express";
// use ipdata package instead of simple fetch because of integrated caching
import IPData, { LookupResponse } from "ipdata";
var ipdata: IPData;
const cacheConfig = {
max: 1000, // max size
maxAge: 1000 * 60 * 60 * 24 // max age in ms (i.e. one day)
};
import fetch from "node-fetch";
const exampleData = {
ip: "",
@ -66,15 +60,14 @@ const exampleData = {
status: 200
};
export async function IPAnalysis(ip: string): Promise<LookupResponse> {
export async function IPAnalysis(ip: string): Promise<typeof exampleData> {
const { ipdataApiKey } = Config.get().security;
if (!ipdataApiKey) return { ...exampleData, ip };
if (!ipdata) ipdata = new IPData(ipdataApiKey, cacheConfig);
return await ipdata.lookup(ip);
return (await fetch(`https://api.ipdata.co/${ip}?api-key=${ipdataApiKey}`)).json();
}
export function isProxy(data: LookupResponse) {
export function isProxy(data: typeof exampleData) {
if (!data || !data.asn || !data.threat) return false;
if (data.asn.type !== "isp") return true;
if (Object.values(data.threat).some((x) => x)) return true;