chore: added newsletter scripts

config/newsletter-testers.js

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+module.exports = [
+  {
+    email: 'joost@joost.at',
+    ehash: 'asefsdfsdfsdlfsllehash',
+  },
+  {
+    email: 'joost@decock.org',
+    ehash: 'zlasdadfsdlfsjjuehash',
+  },
+]

scripts/newsletter-lib.js

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+const fs = require('fs')
+const axios = require('axios')
+const unified = require('unified')
+const markdown = require('remark-parse')
+const remark2rehype = require('remark-rehype')
+const format = require('rehype-format')
+const html = require('rehype-stringify')
+const mustache = require('mustache')
+const nodemailer = require('nodemailer')
+const testers = require('./testers')
+
+const backend = process.env.FS_BACKEND
+
+const asHtml = async (text) => {
+  let content = await unified().use(markdown).use(remark2rehype).use(format).use(html).process(text)
+
+  return content.contents
+}
+
+const getToken = async () => {
+  let res = await axios.post(`${backend}login`, {
+    username: process.env.FS_USER,
+    password: process.env.FS_PASSWORD,
+  })
+  if (res.data) return res.data.token
+  else if (res.err) return console.log(err)
+}
+
+const getSubscribers = async (test = true) => {
+  if (test) return testers
+  let token = await getToken()
+  let res = await axios.get(`${backend}admin/subscribers`, {
+    headers: { Authorization: 'Bearer ' + token },
+  })
+  if (res.data) return res.data
+  else return false
+}
+
+const send = async (test = true) => {
+  const template = fs.readFileSync(`${__dirname}/../templates/newsletter.html`, 'utf8')
+  const text = fs.readFileSync(`${__dirname}/../newsletter/${process.env.NL_EDITION}/en.md`, 'utf8')
+  const subscribers = await getSubscribers(test)
+  const content = await asHtml(text)
+  const inject = { content }
+  const smtp = nodemailer.createTransport({
+    host: process.env.SMTP_HOST,
+    auth: {
+      user: process.env.SMTP_USER,
+      pass: process.env.SMTP_PASS,
+    },
+  })
+
+  let i = 1
+  let subs = subscribers.length
+  for (let sub of subscribers) {
+    // If your SMTP relay start rate-limiting midway through
+    // you can use this if loop to start just after the last
+    // successful delivery
+    if (i > 0) {
+      let unsub = `${backend}unsubscribe/${sub.ehash}`
+      inject.unsubscribe = unsub
+      let body = mustache.render(template, inject)
+      console.log(`${i}/${subs} Sending to ${sub.email}`)
+      await smtp.sendMail({
+        from: '"FreeSewing" <info@freesewing.org>',
+        to: sub.email,
+        subject: 'FreeSewing newsletter: Spring 2021',
+        headers: {
+          Language: 'en',
+          'List-Owner': 'joost@joost.at',
+          'List-Subscribe': 'https://freesewing.org/community/newsletter/',
+          'List-Unsubscribe': unsub,
+        },
+        text,
+        html: body,
+      })
+    }
+    i++
+  }
+}
+
+const sendTest = () => send(true)
+const sendReal = () => send(false)
+
+module.exports = {
+  sendTest,
+  sendReal,
+}

scripts/send-real-newsletter.js

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+require('dotenv').config()
+const lib = require('./lib')
+
+lib.sendReal()

scripts/send-test-newsletter.js

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+require('dotenv').config()
+const lib = require('./lib')
+
+lib.sendTest()