WebFingerリクエストで Proxy, Keep-Alive などをサポート (#4658)

* no webfinger.js

* Fix: エラーメッセージがくどい

package.json

@@ -250,7 +250,6 @@
 		"vuex": "3.1.0",
 		"vuex-persistedstate": "2.5.4",
 		"web-push": "3.3.3",
-		"webfinger.js": "2.7.0",
 		"webpack": "4.28.4",
 		"webpack-cli": "3.2.3",
 		"websocket": "1.0.28",

src/@types/webfinger.js.d.ts

@@ -1,65 +0,0 @@
-declare module 'webfinger.js' {
-	interface IWebFingerConstructorConfig {
-		tls_only?: boolean;
-		webfist_fallback?: boolean;
-		uri_fallback?: boolean;
-		request_timeout?: number;
-	}
-
-	type JRDProperties = { [type: string]: string };
-
-	interface IJRDLink {
-		rel: string;
-		type?: string;
-		href?: string;
-		template?: string;
-		titles?: { [lang: string]: string };
-		properties?: JRDProperties;
-	}
-
-	interface IJRD {
-		subject?: string;
-		expires?: Date;
-		aliases?: string[];
-		properties?: JRDProperties;
-		links?: IJRDLink[];
-	}
-
-	interface IIDXLinks {
-		'avatar': IJRDLink[];
-		'remotestorage': IJRDLink[];
-		'blog': IJRDLink[];
-		'vcard': IJRDLink[];
-		'updates': IJRDLink[];
-		'share': IJRDLink[];
-		'profile': IJRDLink[];
-		'webfist': IJRDLink[];
-		'camlistore': IJRDLink[];
-		[type: string]: IJRDLink[];
-	}
-
-	interface IIDXProperties {
-		'name': string;
-		[type: string]: string;
-	}
-
-	interface IIDX {
-		links: IIDXLinks;
-		properties: IIDXProperties;
-	}
-
-	interface ILookupCallbackResult {
-		object: IJRD;
-		json: string;
-		idx: IIDX;
-	}
-
-	type LookupCallback = (err: Error | string, result?: ILookupCallbackResult) => void;
-
-	export class WebFinger {
-		constructor(config?: IWebFingerConstructorConfig);
-
-		public lookup(address: string, cb: LookupCallback): NodeJS.Timeout;
-		public lookupLink(address: string, rel: string, cb: IJRDLink): void;
-	}
-}

src/remote/resolve-user.ts

@@ -79,8 +79,8 @@ export default async (username: string, _host: string, option?: any, resync?: bo
 async function resolveSelf(acctLower: string) {
 	logger.info(`WebFinger for ${chalk.yellow(acctLower)}`);
 	const finger = await webFinger(acctLower).catch(e => {
-		logger.error(`Failed to WebFinger for ${chalk.yellow(acctLower)}: ${e.message} (${e.status})`);
-		throw e;
+		logger.error(`Failed to WebFinger for ${chalk.yellow(acctLower)}: ${ e.statusCode || e.message }`);
+		throw new Error(`Failed to WebFinger for ${acctLower}: ${ e.statusCode || e.message }`);
 	});
 	const self = finger.links.find(link => link.rel && link.rel.toLowerCase() === 'self');
 	if (!self) {

src/remote/webfinger.ts

@@ -1,6 +1,7 @@
-import { WebFinger } from 'webfinger.js';
-
-const webFinger = new WebFinger({ });
+import config from '../config';
+import * as request from 'request-promise-native';
+import { URL } from 'url';
+import { query as urlQuery } from '../prelude/url';
 
 type ILink = {
 	href: string;
@@ -12,12 +13,33 @@ type IWebFinger = {
 	subject: string;
 };
 
-export default async function resolve(query: any): Promise<IWebFinger> {
-	return await new Promise((res, rej) => webFinger.lookup(query, (error: Error | string, result: any) => {
-		if (error) {
-			return rej(error);
-		}
+export default async function(query: string): Promise<IWebFinger> {
+	const url = genUrl(query);
 
-		res(result.object);
-	})) as IWebFinger;
+	return await request({
+		url,
+		proxy: config.proxy,
+		timeout: 10 * 1000,
+		forever: true,
+		headers: {
+			'User-Agent': config.userAgent,
+			Accept: 'application/jrd+json, application/json'
+		},
+		json: true
+	});
+}
+
+function genUrl(query: string) {
+	if (query.match(/^https?:\/\//)) {
+		const u = new URL(query);
+		return `${u.protocol}//${u.hostname}/.well-known/webfinger?` + urlQuery({ resource: query });
+	}
+
+	const m = query.match(/^([^@]+)@(.*)/);
+	if (m) {
+		const hostname = m[2];
+		return `https://${hostname}/.well-known/webfinger?` + urlQuery({ resource: `acct:${query}` });
+	}
+
+	throw new Error(`Invalied query (${query})`);
 }