127 строки
4.0 KiB
JavaScript
127 строки
4.0 KiB
JavaScript
"use strict";
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const { URL } = require("url");
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const AppConstants = require("./app-constants");
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const nodemailer = require("nodemailer");
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const hbs = require("nodemailer-express-handlebars");
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const HBSHelpers = require("./template-helpers/");
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const mozlog = require("./log");
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const log = mozlog("email-utils");
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const hbsOptions = {
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viewEngine: {
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extname: ".hbs",
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layoutsDir: __dirname + "/views/layouts",
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defaultLayout: "default_email",
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partialsDir: __dirname + "/views/partials",
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helpers: HBSHelpers.helpers,
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},
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viewPath: __dirname + "/views/layouts",
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extName: ".hbs",
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};
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// The SMTP transport object. This is initialized to a nodemailer transport
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// object while reading SMTP credentials, or to a dummy function in debug mode.
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let gTransporter;
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const EmailUtils = {
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async init(smtpUrl = AppConstants.SMTP_URL) {
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// Allow a debug mode that will log JSON instead of sending emails.
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if (!smtpUrl) {
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log.info("smtpUrl-empty", { message: "EmailUtils will log a JSON response instead of sending emails." });
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gTransporter = nodemailer.createTransport({jsonTransport: true});
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return Promise.resolve(true);
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}
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gTransporter = nodemailer.createTransport(smtpUrl);
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const gTransporterVerification = await gTransporter.verify();
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gTransporter.use("compile", hbs(hbsOptions));
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return Promise.resolve(gTransporterVerification);
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},
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sendEmail(aRecipient, aSubject, aTemplate, aContext) {
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if (!gTransporter) {
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return Promise.reject("SMTP transport not initialized");
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}
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const emailContext = Object.assign({
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SERVER_URL: AppConstants.SERVER_URL,
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}, aContext);
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return new Promise((resolve, reject) => {
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const emailFrom = AppConstants.EMAIL_FROM;
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const mailOptions = {
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from: emailFrom,
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to: aRecipient,
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subject: aSubject,
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template: aTemplate,
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context: emailContext,
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headers: {
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"x-ses-configuration-set": AppConstants.SES_CONFIG_SET,
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},
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};
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gTransporter.sendMail(mailOptions, (error, info) => {
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if (error) {
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reject(error);
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return;
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}
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if (gTransporter.transporter.name === "JSONTransport") {
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log.info("JSONTransport", { message: info.message.toString() });
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}
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resolve(info);
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});
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});
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},
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appendUtmParams(url, campaign, content) {
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const utmParameters = {
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utm_source: "fx-monitor",
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utm_medium: "email",
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utm_campaign: campaign,
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utm_content: content,
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};
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for (const param in utmParameters) {
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url.searchParams.append(param, utmParameters[param]);
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}
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return url;
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},
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getReportSubject(breaches, req) {
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if (breaches.length === 0) {
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return req.fluentFormat("email-subject-no-breaches");
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}
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return req.fluentFormat("email-subject-found-breaches");
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},
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getEmailCtaHref(emailType, campaign, subscriberId=null) {
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const subscriberParamPath = (subscriberId) ? `/?subscriber_id=${subscriberId}` : "/";
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const url = new URL(subscriberParamPath, AppConstants.SERVER_URL);
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return this.appendUtmParams(url, campaign, emailType);
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},
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getVerificationUrl(subscriber) {
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let url = new URL(`${AppConstants.SERVER_URL}/user/verify`);
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url = this.appendUtmParams(url, "verified-subscribers", "account-verification-email");
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url.searchParams.append("token", encodeURIComponent(subscriber.verification_token));
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return url;
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},
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getUnsubscribeUrl(subscriber, emailType) {
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let url = new URL(`${AppConstants.SERVER_URL}/user/unsubscribe`);
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const token = (subscriber.hasOwnProperty("verification_token")) ? subscriber.verification_token : subscriber.primary_verification_token;
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const hash = (subscriber.hasOwnProperty("sha1")) ? subscriber.sha1 : subscriber.primary_sha1;
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url.searchParams.append("token", encodeURIComponent(token));
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url.searchParams.append("hash", encodeURIComponent(hash));
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url = this.appendUtmParams(url, "unsubscribe", emailType);
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return url;
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},
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};
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module.exports = EmailUtils;
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