198 lines
7.9 KiB
TypeScript
198 lines
7.9 KiB
TypeScript
import fs from "fs";
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import Handlebars from 'handlebars';
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import i18next from "i18next";
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import Backend from 'i18next-fs-backend';
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import nodemailer from 'nodemailer';
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import { MailOptions } from 'nodemailer/lib/json-transport';
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import Mail from 'nodemailer/lib/mailer';
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import path from 'path';
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import { config } from './config';
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import { MailServerConfigError } from './errors/MailErrors';
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/**
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* This class is responsible for all mail sending.
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* This uses the html and plaintext templates from src/templates.
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*/
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export class Mailer {
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private transport: Mail;
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private static interpolations = { copyright_owner: config.copyright_owner, event_name: config.event_name, contact_mail: config.contact_mail }
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/**
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* Main constructor.
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* Initializes i18n(ext), Handlebars and puppeteer.
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*/
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constructor() {
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this.init();
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}
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/**
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* Main constructor.
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* Initializes i18n(ext), Handlebars and puppeteer.
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*/
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public async init() {
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await i18next
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.use(Backend)
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.init({
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fallbackLng: 'en',
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lng: 'en',
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backend: {
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loadPath: path.join(__dirname, '/locales/{{lng}}.json')
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}
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});
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await Handlebars.registerHelper('__',
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function (str) {
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return i18next.t(str, Mailer.interpolations).toString();
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}
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);
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this.transport = nodemailer.createTransport({
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host: config.mail_server,
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port: config.mail_port,
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auth: {
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user: config.mail_user,
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pass: config.mail_password
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}
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});
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this.transport.verify(function (error, success) {
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if (error) {
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throw new MailServerConfigError();
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}
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});
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}
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/**
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* Function for sending a reset mail from the reset mail template.
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* @param to_address The address the mail will be sent to. Should always get pulled from a user object.
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* @param token The requested password reset token - will be combined with the app_url to generate a password reset link.
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*/
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public async sendResetMail(to_address: string, token: string, locale: string = "en") {
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await i18next.changeLanguage(locale);
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const replacements = {
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recipient_mail: to_address,
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copyright_owner: config.copyright_owner,
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link_imprint: `${config.app_url}/imprint`,
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link_privacy: `${config.app_url}/privacy`,
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reset_link: `${config.app_url}/reset/${(Buffer.from(token)).toString("base64")}`
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}
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const template_html = Handlebars.compile(fs.readFileSync(__dirname + '/templates/pw-reset.html', { encoding: 'utf8' }));
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const template_txt = Handlebars.compile(fs.readFileSync(__dirname + '/templates/pw-reset.txt', { encoding: 'utf8' }));
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const body_html = template_html(replacements);
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const body_txt = template_txt(replacements);
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const mail: MailOptions = {
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to: to_address,
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subject: i18next.t("lfk-password-reset", Mailer.interpolations).toString(),
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text: body_txt,
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html: body_html
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};
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await this.sendMail(mail);
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}
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/**
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* Function for sending a test mail from the test mail template.
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* @param to_address The address the mail will be sent to - usually the FROM address.
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*/
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public async sendTestMail(locale: string = "en") {
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await i18next.changeLanguage(locale);
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const to_address: string = config.mail_from;
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const replacements = {
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recipient_mail: to_address,
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copyright_owner: config.copyright_owner,
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link_imprint: `${config.app_url}/imprint`,
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link_privacy: `${config.app_url}/privacy`
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}
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const template_html = Handlebars.compile(fs.readFileSync(__dirname + '/templates/test.html', { encoding: 'utf8' }));
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const template_txt = Handlebars.compile(fs.readFileSync(__dirname + '/templates/test.txt', { encoding: 'utf8' }));
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const body_html = template_html(replacements);
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const body_txt = template_txt(replacements);
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const mail: MailOptions = {
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to: to_address,
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subject: i18next.t("test-mail", Mailer.interpolations).toString(),
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text: body_txt,
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html: body_html
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};
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await this.sendMail(mail);
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}
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/**
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* Function for sending a reset mail from the reset mail template.
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* @param to_address The address the mail will be sent to. Should always get pulled from a runner object.
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* @param token The runner's selfservice token - will be combined with the app_url to generate a selfservice profile link.
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*/
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public async sendWelcomeMail(to_address: string, token: string, locale: string = "en") {
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await i18next.changeLanguage(locale);
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token = Buffer.from(token).toString("base64");
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const replacements = {
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recipient_mail: to_address,
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copyright_owner: config.copyright_owner,
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link_imprint: `${config.app_url}/imprint`,
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link_privacy: `${config.app_url}/privacy`,
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selfservice_link: `${config.app_url}/selfservice/profile/${token}`,
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forgot_link: `${config.app_url}/selfservice/`,
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contact_mail: config.contact_mail,
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event_name: config.event_name
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}
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const template_html = Handlebars.compile(fs.readFileSync(__dirname + '/templates/welcome_runner.html', { encoding: 'utf8' }));
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const template_txt = Handlebars.compile(fs.readFileSync(__dirname + '/templates/welcome_runner.txt', { encoding: 'utf8' }));
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const body_html = template_html(replacements);
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const body_txt = template_txt(replacements);
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const mail: MailOptions = {
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to: to_address,
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subject: i18next.t("event_name-registration", Mailer.interpolations).toString(),
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text: body_txt,
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html: body_html
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};
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await this.sendMail(mail);
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}
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/**
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* Function for sending a selfservice link forgotten mail from the runner_forgot template.
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* @param to_address The address the mail will be sent to. Should always get pulled from a runner object.
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* @param token The runner's selfservice token - will be combined with the app_url to generate a selfservice profile link.
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*/
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public async sendSelfserviceForgottenMail(to_address: string, token: string, locale: string = "en") {
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await i18next.changeLanguage(locale);
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token = Buffer.from(token).toString("base64");
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const replacements = {
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recipient_mail: to_address,
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copyright_owner: config.copyright_owner,
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link_imprint: `${config.app_url}/imprint`,
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link_privacy: `${config.app_url}/privacy`,
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selfservice_link: `${config.app_url}/selfservice/profile/${token}`,
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forgot_link: `${config.app_url}/selfservice/`,
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contact_mail: config.contact_mail,
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event_name: config.event_name
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}
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const template_html = Handlebars.compile(fs.readFileSync(__dirname + '/templates/runner_forgot.html', { encoding: 'utf8' }));
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const template_txt = Handlebars.compile(fs.readFileSync(__dirname + '/templates/runner_forgot.txt', { encoding: 'utf8' }));
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const body_html = template_html(replacements);
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const body_txt = template_txt(replacements);
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const mail: MailOptions = {
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to: to_address,
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subject: i18next.t("your-event_name-profile", Mailer.interpolations).toString(),
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text: body_txt,
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html: body_html
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};
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await this.sendMail(mail);
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}
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/**
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* Wrapper function for sending a mail via this object's transporter.
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* @param mail MailOptions object containing the
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*/
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public async sendMail(mail: MailOptions) {
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mail.from = config.mail_from;
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await this.transport.sendMail(mail);
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}
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} |