refactoring

Resolve #7779

packages/backend/src/config/index.ts

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

packages/backend/src/config/load.ts

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+/**
+ * Config loader
+ */
+
+import * as fs from 'fs';
+import { fileURLToPath } from 'url';
+import { dirname } from 'path';
+import * as yaml from 'js-yaml';
+import { Source, Mixin } from './types';
+
+//const _filename = fileURLToPath(import.meta.url);
+const _filename = __filename;
+const _dirname = dirname(_filename);
+
+/**
+ * Path of configuration directory
+ */
+const dir = `${_dirname}/../../../../.config`;
+
+/**
+ * Path of configuration file
+ */
+const path = process.env.NODE_ENV === 'test'
+	? `${dir}/test.yml`
+	: `${dir}/default.yml`;
+
+export default function load() {
+	const meta = JSON.parse(fs.readFileSync(`${_dirname}/../../../../built/meta.json`, 'utf-8'));
+	const config = yaml.load(fs.readFileSync(path, 'utf-8')) as Source;
+
+	const mixin = {} as Mixin;
+
+	const url = tryCreateUrl(config.url);
+
+	config.url = url.origin;
+
+	config.port = config.port || parseInt(process.env.PORT || '', 10);
+
+	mixin.version = meta.version;
+	mixin.host = url.host;
+	mixin.hostname = url.hostname;
+	mixin.scheme = url.protocol.replace(/:$/, '');
+	mixin.wsScheme = mixin.scheme.replace('http', 'ws');
+	mixin.wsUrl = `${mixin.wsScheme}://${mixin.host}`;
+	mixin.apiUrl = `${mixin.scheme}://${mixin.host}/api`;
+	mixin.authUrl = `${mixin.scheme}://${mixin.host}/auth`;
+	mixin.driveUrl = `${mixin.scheme}://${mixin.host}/files`;
+	mixin.userAgent = `Misskey/${meta.version} (${config.url})`;
+
+	if (!config.redis.prefix) config.redis.prefix = mixin.host;
+
+	return Object.assign(config, mixin);
+}
+
+function tryCreateUrl(url: string) {
+	try {
+		return new URL(url);
+	} catch (e) {
+		throw `url="${url}" is not a valid URL.`;
+	}
+}

packages/backend/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 = {
+	repository_url?: string;
+	feedback_url?: string;
+	url: string;
+	port: number;
+	https?: { [x: string]: string };
+	disableHsts?: boolean;
+	db: {
+		host: string;
+		port: number;
+		db: string;
+		user: string;
+		pass: string;
+		disableCache?: boolean;
+		extra?: { [x: string]: string };
+	};
+	redis: {
+		host: string;
+		port: number;
+		pass: string;
+		db?: number;
+		prefix?: string;
+	};
+	elasticsearch: {
+		host: string;
+		port: number;
+		ssl?: boolean;
+		user?: string;
+		pass?: string;
+		index?: string;
+	};
+
+	proxy?: string;
+	proxySmtp?: string;
+	proxyBypassHosts?: string[];
+
+	allowedPrivateNetworks?: string[];
+
+	maxFileSize?: number;
+
+	accesslog?: string;
+
+	clusterLimit?: number;
+
+	id: string;
+
+	outgoingAddressFamily?: 'ipv4' | 'ipv6' | 'dual';
+
+	deliverJobConcurrency?: number;
+	inboxJobConcurrency?: number;
+	deliverJobPerSec?: number;
+	inboxJobPerSec?: number;
+	deliverJobMaxAttempts?: number;
+	inboxJobMaxAttempts?: number;
+
+	syslog: {
+		host: string;
+		port: number;
+	};
+
+	mediaProxy?: string;
+
+	signToActivityPubGet?: boolean;
+};
+
+/**
+ * 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 = {
+	version: string;
+	host: string;
+	hostname: string;
+	scheme: string;
+	wsScheme: string;
+	apiUrl: string;
+	wsUrl: string;
+	authUrl: string;
+	driveUrl: string;
+	userAgent: string;
+};
+
+export type Config = Source & Mixin;