Add download-all as tar.gz and style improvements

app/src/Download.vue

@@ -20,10 +20,15 @@
         |  decrypt
     .panel.panel-primary(v-if='!needsPassword')
       .panel-heading
-        a.pull-right(style="color:#fff", @click="downloadAll", v-if="downloadsAvailable")
-          i.fa.fa-fw.fa-download
-          |  Download ZIP
-        | Files
+        strong Files
+        div.pull-right(style="margin-top:-5px;")
+          span.btn-group
+            a.btn.btn-sm.btn-default(@click="downloadAll('zip')", title="Archive download is not resumeable!")
+              i.fa.fa-fw.fa-fw.fa-download
+              |  zip
+            a.btn.btn-sm.btn-default(@click="downloadAll('tar.gz')", title="Archive download is not resumeable!")
+              i.fa.fa-fw.fa-fw.fa-download
+              |  tar.gz
       .panel-body
         table.table.table-hover.table-striped(style='margin-bottom: 0')
           tbody
@@ -70,7 +75,7 @@
 
     computed: {
       downloadsAvailable: function() {
-        return this.files.some(f => !f.downloaded || f.metadata.retention !== 'one-time')
+        return this.files.length > 1 && this.files.some(f => !f.downloaded || f.metadata.retention !== 'one-time')
       }
     },
 
@@ -84,14 +89,14 @@
         file.downloaded = true;
       },
 
-      downloadAll() {
+      downloadAll(format) {
         document.location.href = document.location.protocol + '//' + document.location.host
           + '/files/' + this.sid + '++'
           + MD5(
-          this.files
-            .filter(f => !f.downloaded || f.metadata.retention !== 'one-time')
-            .map(f => f.key).join()
-        ).toString() + '.zip';
+            this.files
+              .filter(f => !f.downloaded || f.metadata.retention !== 'one-time')
+              .map(f => f.key).join()
+          ).toString() + '.' + format;
 
         this.files.forEach(f => {
           f.downloaded = true;

lib/endpoints.js

@@ -14,6 +14,7 @@ const AES = require("crypto-js/aes");
 const MD5 = require("crypto-js/md5");
 const debug = require('debug')('psitransfer:main');
 const archiver = require('archiver');
+const zlib = require('zlib');
 
 const errorPage = fs.readFileSync(path.join(__dirname, '../public/html/error.html')).toString();
 const store = new Store(config.uploadDir);
@@ -70,25 +71,28 @@ app.get('/:sid', (req, res, next) => {
 });
 
 
-// Download single file
+// Download files
 app.get('/files/:fid', async(req, res, next) => {
-  // let tusboy handle HEAD with Tus Header
+  // let tusboy handle HEAD requests with Tus Header
   if(req.method === 'HEAD' && req.get('Tus-Resumable')) return next();
 
   // Download all files
-  if(req.params.fid.endsWith('.zip')) {
+  if(req.params.fid.match(/^[a-z0-9+]+\.(tar\.gz|zip)$/)) {
     const sid = req.params.fid.split('++')[0];
+    const format = req.params.fid.endsWith('.zip') ? 'zip' : 'tar.gz';
     const bucket = db.get(sid);
-    if(req.params.fid !== sid + '++' + MD5(bucket.map(f => f.key).join()).toString() + '.zip') {
+
+    if(req.params.fid !== sid + '++' + MD5(bucket.map(f => f.key).join()).toString() + '.' + format) {
       res.status(404).send(errorPage.replace('%%ERROR%%', 'Invalid link'));
       return;
     }
     debug(`Download Bucket ${sid}`);
 
-    res.header('ContentType', 'application/zip');
-    res.header('Content-Disposition', 'attachment; filename="' + sid + '.zip"');
+    if(format === 'zip') res.header('ContentType', 'application/zip');
+    if(format === 'tar.gz') res.header('ContentType', 'application/x-gtar');
+    res.header('Content-Disposition', `attachment; filename="${sid}.${format}"`);
 
-    const archive = archiver('zip');
+    const archive = archiver(format === 'zip' ? 'zip' : 'tar');
     archive.on('error', function(err) {
       console.error(err);
     });
@@ -100,7 +104,11 @@ app.get('/files/:fid', async(req, res, next) => {
       );
     });
 
-    archive.pipe(res);
+    if(format === 'tar.gz') {
+      archive.pipe(zlib.createGzip()).pipe(res);
+    } else {
+      archive.pipe(res);
+    }
     archive.finalize();
 
     try {