finished metrics

server/server.js

@@ -107,12 +107,18 @@ app.get('/download/:id', (req, res) => {
     storage
       .length(id)
       .then(contentLength => {
-        res.render('download', {
-          filename: decodeURIComponent(filename),
-          filesize: bytes(contentLength),
-          trackerId: conf.analytics_id,
-          dsn: conf.sentry_id
-        });
+        storage
+          .ttl(id)
+          .then(timeToExpiry => {
+            res.render('download', {
+              filename: decodeURIComponent(filename),
+              filesize: bytes(contentLength),
+              sizeInBytes: contentLength,
+              timeToExpiry: timeToExpiry,
+              trackerId: conf.analytics_id,
+              dsn: conf.sentry_id
+            });
+          })
       })
       .catch(() => {
         res.render('download');

server/storage.js

@@ -23,6 +23,7 @@ if (conf.s3_bucket) {
   module.exports = {
     filename: filename,
     exists: exists,
+    ttl: ttl,
     length: awsLength,
     get: awsGet,
     set: awsSet,
@@ -39,6 +40,7 @@ if (conf.s3_bucket) {
   module.exports = {
     filename: filename,
     exists: exists,
+    ttl: ttl,
     length: localLength,
     get: localGet,
     set: localSet,
@@ -73,6 +75,18 @@ function metadata(id) {
   });
 }
 
+function ttl(id) {
+  return new Promise((resolve, reject) => {
+    redis_client.ttl(id, (err, reply) => {
+      if (!err) {
+        resolve(reply * 1000);
+      } else {
+        reject(err);
+      }
+    })
+  })
+}
+
 function filename(id) {
   return new Promise((resolve, reject) => {
     redis_client.hget(id, 'filename', (err, reply) => {