expired ids should reject instead of returning null

frontend/src/fileReceiver.js

@@ -19,9 +19,7 @@ class FileReceiver extends EventEmitter {
 
         xhr.onload = function(event) {
           if (xhr.status === 404) {
-            reject(
-              new Error('notfound')
-            );
+            reject(new Error('notfound'));
             return;
           }
 

frontend/src/upload.js

@@ -135,7 +135,7 @@ $(document).ready(function() {
     event.preventDefault();
 
     // don't allow upload if not on upload page
-    if ($('#page-one').attr('hidden')){
+    if ($('#page-one').attr('hidden')) {
       return;
     }
 
@@ -472,7 +472,7 @@ $(document).ready(function() {
     const $popupNvmSpan = $('<span>', { class: 'popup-no' });
     $popupNvmSpan.attr('data-l10n-id', 'deletePopupCancel');
 
-    $popupText.html([$popupMessage, $popupDelSpan,  $popupNvmSpan]);
+    $popupText.html([$popupMessage, $popupDelSpan, $popupNvmSpan]);
 
     // add data cells to table row
     row.appendChild(name);

server/server.js

@@ -47,10 +47,7 @@ app.use(
         'https://sentry.prod.mozaws.net',
         'https://www.google-analytics.com'
       ],
-      imgSrc: [
-        "'self'",
-        'https://www.google-analytics.com'
-      ],
+      imgSrc: ["'self'", 'https://www.google-analytics.com'],
       scriptSrc: ["'self'"],
       styleSrc: ["'self'", 'https://code.cdn.mozilla.net'],
       fontSrc: ["'self'", 'https://code.cdn.mozilla.net'],
@@ -116,10 +113,10 @@ app.get('/download/:id', (req, res) => {
     return;
   }
 
-  storage.filename(id).then(filename => {
-    storage
-      .length(id)
-      .then(contentLength => {
+  storage
+    .filename(id)
+    .then(filename => {
+      return storage.length(id).then(contentLength => {
         storage.ttl(id).then(timeToExpiry => {
           res.render('download', {
             filename: decodeURIComponent(filename),
@@ -128,11 +125,11 @@ app.get('/download/:id', (req, res) => {
             timeToExpiry: timeToExpiry
           });
         });
-      })
-      .catch(() => {
-        res.status(404).render('notfound');
       });
-  });
+    })
+    .catch(() => {
+      res.status(404).render('notfound');
+    });
 });
 
 app.get('/assets/download/:id', (req, res) => {

server/storage.js

@@ -27,7 +27,6 @@ if (conf.s3_bucket) {
     length: awsLength,
     get: awsGet,
     set: awsSet,
-    aad: aad,
     setField: setField,
     delete: awsDelete,
     forceDelete: awsForceDelete,
@@ -44,7 +43,6 @@ if (conf.s3_bucket) {
     length: localLength,
     get: localGet,
     set: localSet,
-    aad: aad,
     setField: setField,
     delete: localDelete,
     forceDelete: localForceDelete,
@@ -66,35 +64,32 @@ function quit() {
 function metadata(id) {
   return new Promise((resolve, reject) => {
     redis_client.hgetall(id, (err, reply) => {
-      if (!err) {
-        resolve(reply);
-      } else {
-        reject(err);
+      if (err || !reply) {
+        return reject(err);
       }
+      resolve(reply);
     });
   });
 }
 
 function ttl(id) {
   return new Promise((resolve, reject) => {
     redis_client.ttl(id, (err, reply) => {
-      if (!err) {
-        resolve(reply * 1000);
-      } else {
-        reject(err);
+      if (err || !reply) {
+        return reject(err);
       }
+      resolve(reply * 1000);
     });
   });
 }
 
 function filename(id) {
   return new Promise((resolve, reject) => {
     redis_client.hget(id, 'filename', (err, reply) => {
-      if (!err) {
-        resolve(reply);
-      } else {
-        reject(err);
+      if (err || !reply) {
+        return reject();
       }
+      resolve(reply);
     });
   });
 }
@@ -115,18 +110,6 @@ function setField(id, key, value) {
   redis_client.hset(id, key, value);
 }
 
-function aad(id) {
-  return new Promise((resolve, reject) => {
-    redis_client.hget(id, 'aad', (err, reply) => {
-      if (!err) {
-        resolve(reply);
-      } else {
-        reject();
-      }
-    });
-  });
-}
-
 function localLength(id) {
   return new Promise((resolve, reject) => {
     try {