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convert streaming rate limit to bucket

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Hazelnoot 2025-03-27 10:55:22 -04:00
parent 920bf71eb5
commit 18655386f3
1 changed files with 14 additions and 21 deletions
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35
packages/backend/src/server/api/StreamingApiServerService.ts
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@ -10,7 +10,9 @@ import * as WebSocket from 'ws';
import proxyAddr from 'proxy-addr';
import ms from 'ms';
import { DI } from '@/di-symbols.js';
import type { UsersRepository, MiAccessToken } from '@/models/_.js';
import type { UsersRepository, MiAccessToken, MiUser } from '@/models/_.js';
import type { Config } from '@/config.js';
import type { Keyed, RateLimit } from '@/misc/rate-limit-utils.js';
import { NoteReadService } from '@/core/NoteReadService.js';
import { NotificationService } from '@/core/NotificationService.js';
import { bindThis } from '@/decorators.js';
@ -25,8 +27,6 @@ import { AuthenticateService, AuthenticationError } from './AuthenticateService.
import MainStreamConnection from './stream/Connection.js';
import { ChannelsService } from './stream/ChannelsService.js';
import type * as http from 'node:http';
import type { IEndpointMeta } from './endpoints.js';
import type { Config } from "@/config.js";
@Injectable()
export class StreamingApiServerService {
@ -58,17 +58,9 @@ export class StreamingApiServerService {
@bindThis
private async rateLimitThis(
user: MiLocalUser | null | undefined,
requestIp: string,
limit: IEndpointMeta['limit'] & { key: NonNullable<string> },
limitActor: MiUser | string,
limit: Keyed<RateLimit>,
) : Promise<boolean> {
let limitActor: string | MiLocalUser;
if (user) {
limitActor = user;
} else {
limitActor = getIpHash(requestIp);
}
// Rate limit
const rateLimit = await this.rateLimiterService.limit(limit, limitActor);
return rateLimit.blocked;
@ -93,7 +85,8 @@ export class StreamingApiServerService {
// so we do the same
const requestIp = proxyAddr(request, () => { return true; } );
if (await this.rateLimitThis(null, requestIp, {
const limitActor = getIpHash(requestIp);
if (await this.rateLimitThis(limitActor, {
key: 'wsconnect',
duration: ms('5min'),
max: 32,
@ -141,14 +134,14 @@ export class StreamingApiServerService {
}
const rateLimiter = () => {
// rather high limit, because when catching up at the top of a
// timeline, the frontend may render many many notes, each of
// which causes a message via `useNoteCapture` to ask for
// realtime updates of that note
return this.rateLimitThis(user, requestIp, {
const limitActor = user ?? getIpHash(requestIp);
// Rather high limit because when catching up at the top of a timeline, the frontend may render many many notes.
// Each of which causes a message via `useNoteCapture` to ask for realtime updates of that note.
return this.rateLimitThis(limitActor, {
key: 'wsmessage',
duration: ms('2sec'),
max: 4096,
max: 4096, // Allow spikes of up to 4096
dripRate: 50, // Then once every 50ms (20/second rate)
});
};