54 lines
3 KiB
TypeScript
54 lines
3 KiB
TypeScript
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import nodemailer from 'nodemailer';
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import { one, run } from './db.js';
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import { decrypt } from './crypto.js';
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export interface SmtpConfig { host: string; port: number; secureMode: 'none' | 'starttls' | 'tls'; username: string | null; fromName: string | null; fromEmail: string }
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/** Lädt die SMTP-Verbindung aus der Datenbank (Einstellungen > E-Mail). Kein Host/Absender gesetzt = nicht eingerichtet. */
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export async function loadSmtpConfig(): Promise<SmtpConfig | null> {
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const s = await one('SELECT * FROM smtp_settings WHERE id = 1');
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if (!s?.host || !s?.from_email) return null;
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return { host: s.host, port: s.port, secureMode: s.secure_mode, username: s.username, fromName: s.from_name, fromEmail: s.from_email };
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}
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async function smtpPassword(): Promise<string | null> {
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const s = await one('SELECT secrets_enc FROM smtp_settings WHERE id = 1');
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return s?.secrets_enc ? (JSON.parse(decrypt(s.secrets_enc)).password ?? null) : null;
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}
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async function transportFor(cfg: SmtpConfig) {
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return nodemailer.createTransport({
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host: cfg.host, port: cfg.port, secure: cfg.secureMode === 'tls', requireTLS: cfg.secureMode === 'starttls',
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auth: cfg.username ? { user: cfg.username, pass: (await smtpPassword()) ?? '' } : undefined,
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});
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}
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/** Versand mit Protokoll. Ohne SMTP-Konfiguration wird nur "not_configured" protokolliert (Inhalt bewusst nicht gespeichert). */
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export async function sendMail(to: string, template: string, subject: string, text: string): Promise<'sent' | 'failed' | 'not_configured'> {
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const cfg = await loadSmtpConfig();
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if (!cfg) {
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await run('INSERT INTO mail_log (to_email, template, status) VALUES (?,?,?)', [to, template, 'not_configured']);
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return 'not_configured';
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}
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try {
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const transport = await transportFor(cfg);
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await transport.sendMail({ from: cfg.fromName ? `"${cfg.fromName.replace(/"/g, "'")}" <${cfg.fromEmail}>` : cfg.fromEmail, to, subject, text });
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await run('INSERT INTO mail_log (to_email, template, status) VALUES (?,?,?)', [to, template, 'sent']);
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return 'sent';
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} catch (e) {
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await run('INSERT INTO mail_log (to_email, template, status, error) VALUES (?,?,?,?)', [to, template, 'failed', String((e as Error).message).slice(0, 300)]);
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return 'failed';
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}
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}
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/** Ersetzt {{platzhalter}} durch die übergebenen Werte; unbekannte Platzhalter bleiben unverändert stehen (fällt in der Vorschau auf). */
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export function renderTemplateText(tpl: string, vars: Record<string, string>): string {
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return tpl.replace(/\{\{(\w+)\}\}/g, (m, k: string) => (k in vars ? vars[k]! : m));
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}
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/** Sendet anhand einer in der Datenbank hinterlegten Vorlage (Einstellungen > E-Mail > Vorlagen). */
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export async function sendTemplateMail(to: string, key: string, vars: Record<string, string>): Promise<'sent' | 'failed' | 'not_configured' | 'disabled' | 'no_template'> {
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const t = await one('SELECT * FROM mail_templates WHERE `key` = ?', [key]);
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if (!t) return 'no_template';
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if (!t.enabled) return 'disabled';
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return sendMail(to, key, renderTemplateText(t.subject, vars), renderTemplateText(t.body, vars));
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}
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