Add native SSL support

app.js

@@ -1,6 +1,8 @@
 'use strict';
 const config = require('./config');
 const app = require('./lib/endpoints');
+const https = require('https');
+const fs = require('fs');
 
 /**
  * Naming:
@@ -9,17 +11,43 @@ const app = require('./lib/endpoints');
  * fid: {sid}++{key}
  */
 
-const server = app.listen(config.port, config.iface, () => {
+let server;
+if(config.port) {
+  // HTTP Server
+  server = app.listen(config.port, config.iface, () => {
     console.log(`PsiTransfer listening on http://${config.iface}:${config.port}`);
   });
+}
+
+let httpsServer;
+if(config.sslPort && config.sslKeyFile && config.sslCertFile) {
+  // HTTPS Server
+  const sslOpts = {
+    key: fs.readFileSync(config.sslKeyFile),
+    cert: fs.readFileSync(config.sslCertFile)
+  };
+  httpsServer = https.createServer(sslOpts, app)
+    .listen(config.sslPort, config.iface, () => {
+      console.log(`PsiTransfer listening on https://${config.iface}:${config.sslPort}`);
+    });
+}
 
 
 // graceful shutdown
 function shutdown() {
   console.log('PsiTransfer shutting down...');
+  if(server) {
     server.close(() => {
-    process.exit(0);
+      server = false;
+      if(!server && !httpsServer) process.exit(0);
     });
+  }
+  if(httpsServer) {
+    httpsServer.close(() => {
+      httpsServer = false;
+      if(!server && !httpsServer) process.exit(0);
+    });
+  }
   setTimeout(function() {
     console.log('Could not close connections in time, forcefully shutting down');
     process.exit(0);

config.dev.js

@@ -13,5 +13,7 @@ module.exports = {
     "604800": "1 Week",
     "1209600": "2 Weeks"
   },
-  "defaultRetention": 3600
+  "defaultRetention": 3600,
+  "sslKeyFile": './tmp/cert.key',
+  "sslCertFile": './tmp/cert.pem',
 };

config.js

@@ -7,8 +7,13 @@ const fsp = require('fs-promise');
 // or use ENV-VARS like PSITRANSFER_PORT=8000
 const config =  {
   "uploadDir": path.resolve(__dirname + '/data'),
-  "port": 3000,
   "iface": '0.0.0.0',
+  // set to false to disable HTTP
+  "port": 3000,
+  // HTTPS, set all 3 values to enable
+  "sslPort": 8443,
+  "sslKeyFile": false,
+  "sslCertFile": false,
   // retention options in seconds:label
   "retentions": {
     "one-time": "one time download",

docs/configuration.md

@@ -38,3 +38,12 @@ node app.js
 * Then it will overwrite `retentions` and `port` with the values of the environment parameters.
 
 > Environment parameters always have the highest priority.
+
+## SSL
+
+It's recommended to use Nginx for SSL termination, see [nginx-ssl-example.conf](https://github.com/psi-4ward/psitransfer/blob/master/docs/nginx-ssl-example.conf).
+
+For native SSL support provide `sslPort`, `sslKeyFile`, `sslCertFile` options. To generate
+a _snake oil_ certificate use `openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout cert.key -out cert.pem`.
+
+To disable HTTP set the `port` config value to `false`.