Introduce config module

src/config/index.ts

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+import load from './load';
+
+export default load();

src/config/load.ts

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+/**
+ * Config loader
+ */
+
+import * as fs from 'fs';
+import { URL } from 'url';
+import * as yaml from 'js-yaml';
+import { Source, Mixin } from './types';
+import isUrl = require('is-url');
+
+/**
+ * Path of configuration directory
+ */
+const dir = `${__dirname}/../../.config`;
+
+/**
+ * Path of configuration file
+ */
+const path = process.env.NODE_ENV == 'test'
+	? `${dir}/test.yml`
+	: `${dir}/default.yml`;
+
+export default function load() {
+	const config = yaml.safeLoad(fs.readFileSync(path, 'utf-8')) as Source;
+
+	const mixin = {} as Mixin;
+
+	// Validate URLs
+	if (!isUrl(config.url)) urlError(config.url);
+
+	const url = new URL(config.url);
+	config.url = normalizeUrl(config.url);
+
+	mixin.host = url.host;
+	mixin.hostname = url.hostname;
+	mixin.scheme = url.protocol.replace(/:$/, '');
+	mixin.ws_scheme = mixin.scheme.replace('http', 'ws');
+	mixin.ws_url = `${mixin.ws_scheme}://${mixin.host}`;
+	mixin.api_url = `${mixin.scheme}://${mixin.host}/api`;
+	mixin.auth_url = `${mixin.scheme}://${mixin.host}/auth`;
+	mixin.dev_url = `${mixin.scheme}://${mixin.host}/dev`;
+	mixin.docs_url = `${mixin.scheme}://${mixin.host}/docs`;
+	mixin.stats_url = `${mixin.scheme}://${mixin.host}/stats`;
+	mixin.status_url = `${mixin.scheme}://${mixin.host}/status`;
+	mixin.drive_url = `${mixin.scheme}://${mixin.host}/files`;
+
+	return Object.assign(config, mixin);
+}
+
+function normalizeUrl(url: string) {
+	return url[url.length - 1] === '/' ? url.substr(0, url.length - 1) : url;
+}
+
+function urlError(url: string) {
+	console.error(`「${url}」は、正しいURLではありません。先頭に http:// または https:// をつけ忘れてないかなど確認してください。`);
+	process.exit();
+}

src/config/types.ts

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+/**
+ * ユーザーが設定する必要のある情報
+ */
+export type Source = {
+	/**
+	 * メンテナ情報
+	 */
+	maintainer: {
+		/**
+		 * メンテナの名前
+		 */
+		name: string;
+		/**
+		 * メンテナの連絡先(URLかmailto形式のURL)
+		 */
+		url: string;
+	};
+	url: string;
+	port: number;
+	https?: { [x: string]: string };
+	mongodb: {
+		host: string;
+		port: number;
+		db: string;
+		user: string;
+		pass: string;
+	};
+	redis: {
+		host: string;
+		port: number;
+		pass: string;
+	};
+	elasticsearch: {
+		enable: boolean;
+		host: string;
+		port: number;
+		pass: string;
+	};
+	recaptcha: {
+		site_key: string;
+		secret_key: string;
+	};
+	accesslog?: string;
+	accesses?: {
+		enable: boolean;
+		port: number;
+	};
+	twitter?: {
+		consumer_key: string;
+		consumer_secret: string;
+	};
+	github_bot?: {
+		hook_secret: string;
+		username: string;
+	};
+	othello_ai?: {
+		id: string;
+		i: string;
+	};
+	line_bot?: {
+		channel_secret: string;
+		channel_access_token: string;
+	};
+	analysis?: {
+		mecab_command?: string;
+	};
+
+	/**
+	 * Service Worker
+	 */
+	sw?: {
+		public_key: string;
+		private_key: string;
+	};
+
+	google_maps_api_key: string;
+};
+
+/**
+ * Misskeyが自動的に(ユーザーが設定した情報から推論して)設定する情報
+ */
+export type Mixin = {
+	host: string;
+	hostname: string;
+	scheme: string;
+	ws_scheme: string;
+	api_url: string;
+	ws_url: string;
+	auth_url: string;
+	docs_url: string;
+	stats_url: string;
+	status_url: string;
+	dev_url: string;
+	drive_url: string;
+};
+
+export type Config = Source & Mixin;