testing - do not merge

packages/backend/package.json

@@ -55,12 +55,8 @@
 	"dependencies": {
 		"@aws-sdk/client-s3": "3.1057.0",
 		"@aws-sdk/lib-storage": "3.1057.0",
-		"@fastify/accepts": "5.0.4",
-		"@fastify/cors": "11.2.0",
-		"@fastify/http-proxy": "11.4.4",
-		"@fastify/multipart": "10.0.0",
-		"@fastify/static": "9.1.3",
-		"@kitajs/html": "4.2.13",
+		"@fastify/proxy-addr": "5.1.0",
+		"@hono/node-server": "2.0.4",
 		"@misskey-dev/emoji-assets": "17.0.3",
 		"@misskey-dev/emoji-data": "17.0.3",
 		"@misskey-dev/sharp-read-bmp": "1.2.0",
@@ -91,13 +87,12 @@
 		"content-disposition": "2.0.1",
 		"date-fns": "4.4.0",
 		"deep-email-validator": "0.1.27",
-		"fastify": "5.8.5",
-		"fastify-raw-body": "5.0.0",
 		"feed": "5.2.1",
 		"file-type": "22.0.1",
 		"fluent-ffmpeg": "2.1.3",
 		"form-data": "4.0.5",
 		"got": "15.0.5",
+		"hono": "4.12.23",
 		"hpagent": "1.2.0",
 		"http-link-header": "1.1.3",
 		"i18n": "workspace:*",
@@ -147,13 +142,11 @@
 		"tsc-alias": "1.8.17",
 		"typeorm": "1.0.0",
 		"ulid": "3.0.2",
-		"vary": "1.1.2",
 		"web-push": "3.6.7",
 		"ws": "8.21.0",
 		"xev": "3.0.2"
 	},
 	"devDependencies": {
-		"@kitajs/ts-html-plugin": "4.1.4",
 		"@nestjs/platform-express": "11.1.24",
 		"@rollup/plugin-esm-shim": "0.1.8",
 		"@sentry/vue": "10.55.0",

packages/backend/src/config.ts

@@ -6,11 +6,12 @@
 import * as fs from 'node:fs';
 import { fileURLToPath } from 'node:url';
 import { dirname, resolve } from 'node:path';
-import { type FastifyServerOptions } from 'fastify';
 import type * as Sentry from '@sentry/node';
 import type * as SentryVue from '@sentry/vue';
 import type { RedisOptions } from 'ioredis';
 
+type TrustProxyOption = boolean | string | string[] | ((address: string, hop: number) => boolean);
+
 type RedisOptionsSource = Partial<RedisOptions> & {
 	host: string;
 	port: number;
@@ -27,7 +28,7 @@ type Source = {
 	url?: string;
 	port?: number;
 	socket?: string;
-	trustProxy?: FastifyServerOptions['trustProxy'];
+	trustProxy?: TrustProxyOption;
 	chmodSocket?: string;
 	enableIpRateLimit?: boolean;
 	disableHsts?: boolean;
@@ -121,7 +122,7 @@ export type Config = {
 	url: string;
 	port: number;
 	socket: string | undefined;
-	trustProxy: NonNullable<FastifyServerOptions['trustProxy']>;
+	trustProxy: NonNullable<TrustProxyOption>
 	chmodSocket: string | undefined;
 	enableIpRateLimit: boolean;
 	disableHsts: boolean | undefined;

packages/backend/src/core/DownloadService.ts

@@ -8,6 +8,7 @@ import * as stream from 'node:stream/promises';
 import { Inject, Injectable } from '@nestjs/common';
 import chalk from 'chalk';
 import got, * as Got from 'got';
+import type { StatusCode } from 'hono/utils/http-status';
 import { parse } from 'content-disposition';
 import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
@@ -100,7 +101,7 @@ export class DownloadService {
 			await stream.pipeline(req, fs.createWriteStream(path));
 		} catch (e) {
 			if (e instanceof Got.HTTPError) {
-				throw new StatusError(`${e.response.statusCode} ${e.response.statusMessage}`, e.response.statusCode, e.response.statusMessage);
+				throw new StatusError(`${e.response.statusCode} ${e.response.statusMessage}`, e.response.statusCode as StatusCode, e.response.statusMessage);
 			} else {
 				throw e;
 			}

packages/backend/src/core/HttpRequestService.ts

@@ -9,6 +9,7 @@ import * as net from 'node:net';
 import * as stream from 'node:stream';
 import ipaddr from 'ipaddr.js';
 import CacheableLookup from 'cacheable-lookup';
+import type { StatusCode } from 'hono/utils/http-status';
 import fetch from 'node-fetch';
 import { HttpProxyAgent, HttpsProxyAgent } from 'hpagent';
 import { Inject, Injectable } from '@nestjs/common';
@@ -344,7 +345,7 @@ export class HttpRequestService {
 		});
 
 		if (!res.ok && extra.throwErrorWhenResponseNotOk) {
-			throw new StatusError(`${res.status} ${res.statusText}`, res.status, res.statusText);
+			throw new StatusError(`${res.status} ${res.statusText}`, res.status as StatusCode, res.statusText);
 		}
 
 		if (res.ok) {

packages/backend/src/misc/hono-middleware-handlers.ts

@@ -0,0 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { createMiddleware } from 'hono/factory';
+
+export const handleRequestRedirectToOmitSearch = createMiddleware(async (c, next) => {
+	if (c.req.url.includes('?')) {
+		return c.redirect(c.req.path, 301);
+	}
+
+	await next();
+	return;
+});

packages/backend/src/misc/hono-vary.ts

@@ -0,0 +1,18 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import type { Context as HonoContext } from 'hono';
+
+export function vary(c: HonoContext, field: string) {
+	const varyHeader = c.res.headers.get('Vary');
+	if (varyHeader != null) {
+		const fields = varyHeader.split(',').map((f) => f.trim());
+		if (!fields.includes(field)) {
+			c.res.headers.set('Vary', `${varyHeader}, ${field}`);
+		}
+	} else {
+		c.res.headers.set('Vary', field);
+	}
+}

packages/backend/src/misc/fastify-reply-error.ts → packages/backend/src/misc/http-status-error.ts

@@ -3,8 +3,7 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-// https://www.fastify.io/docs/latest/Reference/Reply/#async-await-and-promises
-export class FastifyReplyError extends Error {
+export class HttpStatusError extends Error {
 	public message: string;
 	public statusCode: number;
 

packages/backend/src/misc/status-error.ts

@@ -2,14 +2,15 @@
  * SPDX-FileCopyrightText: syuilo and misskey-project
  * SPDX-License-Identifier: AGPL-3.0-only
  */
+import type { StatusCode } from 'hono/utils/http-status';
 
 export class StatusError extends Error {
-	public statusCode: number;
+	public statusCode: StatusCode;
 	public statusMessage?: string;
 	public isClientError: boolean;
 	public isRetryable: boolean;
 
-	constructor(message: string, statusCode: number, statusMessage?: string) {
+	constructor(message: string, statusCode: StatusCode, statusMessage?: string) {
 		super(message);
 		this.name = 'StatusError';
 		this.statusCode = statusCode;