feat(unsub-email): Add an annon unsubscribe route

server/boot/randomAPIs.js

@@ -1,6 +1,10 @@
 import request from 'request';
+import { isMongoId } from 'validator';
+import dedent from 'dedent';
+
 import constantStrings from '../utils/constantStrings.json';
 import testimonials from '../resources/testimonials.json';
+import { wrapHandledError } from '../utils/create-handled-error';
 
 const githubClient = process.env.GITHUB_ID;
 const githubSecret = process.env.GITHUB_SECRET;
@@ -14,7 +18,7 @@ module.exports = function(app) {
   router.get('/twitch', twitch);
   router.get('/u/:email', unsubscribe);
   router.get('/unsubscribe/:email', unsubscribe);
-  router.get('/submit-cat-photo', submitCatPhoto);
+  router.get('/z', unsubscribeAnon);
   router.get(
     '/the-fastest-web-page-on-the-internet',
     theFastestWebPageOnTheInternet
@@ -82,10 +86,6 @@ module.exports = function(app) {
     });
   }
 
-  function submitCatPhoto(req, res) {
-    res.send('Submitted!');
-  }
-
   function bootcampCalculator(req, res) {
     res.render('resources/calculator', {
       title: 'Coding Bootcamp Cost Calculator'
@@ -120,6 +120,56 @@ module.exports = function(app) {
     res.redirect('https://twitch.tv/freecodecamp');
   }
 
+  function unsubscribeAnon(req, res, next) {
+    const { query: { unsubscribeId } } = req;
+    const isValid = unsubscribeId && isMongoId(unsubscribeId);
+    if (!isValid) {
+      throw wrapHandledError(
+        new Error('unsubscribeId is not a mongo ObjectId'),
+        {
+          message: dedent`
+            Oops... something is not right. We could not unsubscribe that email
+            address
+          `,
+          type: 'danger',
+          redirectTo: '/'
+        }
+      );
+    }
+    User.findOne({
+      where: { unsubscribeId }
+    }, (err, user) => {
+      if (err) { return next(err); }
+      if (!user || !user.email) {
+        throw wrapHandledError(
+          new Error('No user or user email to unsubscribe'),
+          {
+            message: dedent`
+              We couldn't find a user account to unsubscribe, are you clicking
+              a link from an email we sent?
+            `,
+            type: 'info',
+            redirectTo: '/'
+          }
+        );
+      }
+      return user.update$({
+        sendQuincyEmail: false
+      }).subscribe(() => {
+        req.flash(
+          'info',
+          'We\'ve successfully updated your Email preferences.'
+        );
+        return res.redirect('/unsubscribed');
+      },
+        next,
+        () => {
+          return user.manualReload();
+        }
+      );
+    });
+  }
+
   function unsubscribe(req, res, next) {
     req.checkParams(
       'email',
@@ -162,7 +212,7 @@ module.exports = function(app) {
           req.flash('info', {
             msg: 'We\'ve successfully updated your Email preferences.'
           });
-          return res.redirect('/unsubscribed/' + req.params.email);
+          return res.redirect('/unsubscribed');
         })
         .catch(next);
     });