Release 0.2.0

src/lib/server/mail.ts

@@ -0,0 +1,49 @@
+import { mkdir, writeFile } from 'node:fs/promises';
+import path from 'node:path';
+import { randomUUID } from 'node:crypto';
+import nodemailer from 'nodemailer';
+import { getMailConfig, getServerPaths } from './config.js';
+
+export type MailMessage = {
+	to: string;
+	subject: string;
+	text: string;
+};
+
+export async function sendMail(message: MailMessage): Promise<'local' | 'smtp'> {
+	const config = getMailConfig();
+	if (config.transport === 'local') {
+		const outbox = getServerPaths().mailOutbox;
+		await mkdir(outbox, { recursive: true, mode: 0o700 });
+		const filename = `${new Date().toISOString().replaceAll(':', '-')}-${randomUUID()}.json`;
+		await writeFile(
+			path.join(outbox, filename),
+			JSON.stringify({ from: config.from, ...message }, null, 2),
+			{ encoding: 'utf8', mode: 0o600 }
+		);
+		return 'local';
+	}
+
+	if (
+		!config.host ||
+		!config.from ||
+		!Number.isInteger(config.port) ||
+		config.port < 1 ||
+		config.port > 65_535 ||
+		Boolean(config.user) !== Boolean(config.password)
+	) {
+		throw new Error('Die SMTP-Konfiguration ist unvollständig.');
+	}
+	const transporter = nodemailer.createTransport({
+		host: config.host,
+		port: config.port,
+		secure: config.secure,
+		requireTLS: !config.secure,
+		connectionTimeout: 10_000,
+		greetingTimeout: 10_000,
+		socketTimeout: 20_000,
+		auth: config.user ? { user: config.user, pass: config.password } : undefined
+	});
+	await transporter.sendMail({ from: config.from, ...message });
+	return 'smtp';
+}