From 8a8054a2b1ad475dacde8cad385b49380a9732ee Mon Sep 17 00:00:00 2001
From: spaceface777 <spaceface7777@gmail.com>
Date: Tue, 13 Nov 2018 19:56:58 +0100
Subject: [PATCH] Add exception if file doesn't exist (#606b5f5)

---
 package-lock.json |  5 +++++
 package.json      |  1 +
 server.js         | 17 +++++++++++++++--
 3 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index da20ac4..2f67ad9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -591,6 +591,11 @@
       "resolved": "https://registry.npmjs.org/express-favicon/-/express-favicon-2.0.1.tgz",
       "integrity": "sha512-KZZF9lIUKU9lkyZM/7AVql7qeXA6EVkHCU5rGU4NvgbWNcYFn6zvCw3cwS5IY/vvP+MzVNVvBABnWfaVZoy7bQ=="
     },
+    "file-exists": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/file-exists/-/file-exists-5.0.1.tgz",
+      "integrity": "sha512-TeBMgeKbdSsQtcY2XqKY/yTa4BciMD/Gw8YcND0XMDZt4CDj87l1Wl4x7K0ravZ80tZcyIGMD0hj2VSRPR8M8Q=="
+    },
     "finalhandler": {
       "version": "1.1.1",
       "resolved": "http://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
diff --git a/package.json b/package.json
index 810afd3..7795794 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "cookie-parser": "^1.4.3",
     "express": "^4.16.4",
     "express-favicon": "^2.0.1",
+    "file-exists": "^5.0.1",
     "redis": "^2.8.0",
     "uuid": "^3.3.2"
   },
diff --git a/server.js b/server.js
index 17dff2c..a04d721 100644
--- a/server.js
+++ b/server.js
@@ -5,6 +5,7 @@ const utils = require('./server/utils');
 const bodyParser = require('body-parser'); // Peticiones POST
 const cookieParser = require('cookie-parser'); // Cookies
 const favicon = require('express-favicon'); // Favicon
+const fileExists = require('file-exists');
 const path = require('path');
 
 const web_client_path = __dirname + '/web_client/';
@@ -46,11 +47,23 @@ app.get('/chat', function(req, res){
 });
 
 app.get('/js/:file', function(req, res){
-    res.sendFile(js_path + req.params.file);
+    fileExists(js_path + req.params.file, function (err, exists) {
+        if (exists) {
+            res.sendFile(js_path + req.params.file);
+        } else {
+            res.sendStatus(404)
+        }
+    });
 });
 
 app.get('/css/:file', function(req, res){
-    res.sendFile(css_path + req.params.file);
+    fileExists(css_path + req.params.file, function (err, exists) {
+        if (exists) {
+            res.sendFile(css_path + req.params.file);
+        } else {
+            res.sendStatus(404)
+        }
+    });
 });
 
 app.get('/clearMessages', function(req, res){