Refactor request (#7814)

* status code

* Test ap-request.ts

4397fc5e70/test/ap-request.ts

* tune

src/remote/activitypub/request.ts

@@ -1,66 +1,31 @@
-import * as http from 'http';
-import * as https from 'https';
-import { sign } from 'http-signature';
-import * as crypto from 'crypto';
-
 import config from '@/config/index';
-import { User } from '@/models/entities/user';
-import { getAgentByUrl } from '@/misc/fetch';
-import { URL } from 'url';
-import got from 'got';
-import * as Got from 'got';
 import { getUserKeypair } from '@/misc/keypair-store';
+import { User } from '@/models/entities/user';
+import { getResponse } from '../../misc/fetch';
+import { createSignedPost, createSignedGet } from './ap-request';
 
 export default async (user: { id: User['id'] }, url: string, object: any) => {
-	const timeout = 10 * 1000;
-
-	const { protocol, hostname, port, pathname, search } = new URL(url);
-
-	const data = JSON.stringify(object);
-
-	const sha256 = crypto.createHash('sha256');
-	sha256.update(data);
-	const hash = sha256.digest('base64');
+	const body = JSON.stringify(object);
 
 	const keypair = await getUserKeypair(user.id);
 
-	await new Promise<void>((resolve, reject) => {
-		const req = https.request({
-			agent: getAgentByUrl(new URL(`https://example.net`)),
-			protocol,
-			hostname,
-			port,
-			method: 'POST',
-			path: pathname + search,
-			timeout,
-			headers: {
-				'User-Agent': config.userAgent,
-				'Content-Type': 'application/activity+json',
-				'Digest': `SHA-256=${hash}`
-			}
-		}, res => {
-			if (res.statusCode! >= 400) {
-				reject(res);
-			} else {
-				resolve();
-			}
-		});
+	const req = createSignedPost({
+		key: {
+			privateKeyPem: keypair.privateKey,
+			keyId: `${config.url}/users/${user.id}#main-key`
+		},
+		url,
+		body,
+		additionalHeaders: {
+			'User-Agent': config.userAgent,
+		}
+	});
 
-		sign(req, {
-			authorizationHeaderName: 'Signature',
-			key: keypair.privateKey,
-			keyId: `${config.url}/users/${user.id}#main-key`,
-			headers: ['(request-target)', 'date', 'host', 'digest']
-		});
-
-		req.on('timeout', () => req.abort());
-
-		req.on('error', e => {
-			if (req.aborted) reject('timeout');
-			reject(e);
-		});
-
-		req.end(data);
+	await getResponse({
+		url,
+		method: req.request.method,
+		headers: req.request.headers,
+		body,
 	});
 };
 
@@ -70,87 +35,24 @@ export default async (user: { id: User['id'] }, url: string, object: any) => {
  * @param url URL to fetch
  */
 export async function signedGet(url: string, user: { id: User['id'] }) {
-	const timeout = 10 * 1000;
-
 	const keypair = await getUserKeypair(user.id);
 
-	const req = got.get<any>(url, {
-		headers: {
-			'Accept': 'application/activity+json, application/ld+json',
+	const req = createSignedGet({
+		key: {
+			privateKeyPem: keypair.privateKey,
+			keyId: `${config.url}/users/${user.id}#main-key`
+		},
+		url,
+		additionalHeaders: {
 			'User-Agent': config.userAgent,
-		},
-		responseType: 'json',
-		timeout,
-		hooks: {
-			beforeRequest: [
-				options => {
-					options.request = (url: URL, opt: http.RequestOptions, callback?: (response: any) => void) => {
-						// Select custom agent by URL
-						opt.agent = getAgentByUrl(url, false);
-
-						// Wrap original https?.request
-						const requestFunc = url.protocol === 'http:' ? http.request : https.request;
-						const clientRequest = requestFunc(url, opt, callback) as http.ClientRequest;
-
-						// HTTP-Signature
-						sign(clientRequest, {
-							authorizationHeaderName: 'Signature',
-							key: keypair.privateKey,
-							keyId: `${config.url}/users/${user.id}#main-key`,
-							headers: ['(request-target)', 'host', 'date', 'accept']
-						});
-
-						return clientRequest;
-					};
-				},
-			],
-		},
-		retry: 0,
+		}
 	});
 
-	const res = await receiveResponce(req, 10 * 1024 * 1024);
+	const res = await getResponse({
+		url,
+		method: req.request.method,
+		headers: req.request.headers
+	});
 
-	return res.body;
-}
-
-/**
- * Receive response (with size limit)
- * @param req Request
- * @param maxSize size limit
- */
-export async function receiveResponce<T>(req: Got.CancelableRequest<Got.Response<T>>, maxSize: number) {
-	// 応答ヘッダでサイズチェック
-	req.on('response', (res: Got.Response) => {
-		const contentLength = res.headers['content-length'];
-		if (contentLength != null) {
-			const size = Number(contentLength);
-			if (size > maxSize) {
-				req.cancel();
-			}
-		}
-	});
-
-	// 受信中のデータでサイズチェック
-	req.on('downloadProgress', (progress: Got.Progress) => {
-		if (progress.transferred > maxSize) {
-			req.cancel();
-		}
-	});
-
-	// 応答取得 with ステータスコードエラーの整形
-	const res = await req.catch(e => {
-		if (e.name === 'HTTPError') {
-			const statusCode = (e as Got.HTTPError).response.statusCode;
-			const statusMessage = (e as Got.HTTPError).response.statusMessage;
-			throw {
-				name: `StatusError`,
-				statusCode,
-				message: `${statusCode} ${statusMessage}`,
-			};
-		} else {
-			throw e;
-		}
-	});
-
-	return res;
+	return await res.json();
 }