support for execution of async functions + integration with backend through server.exec()

public/javascripts/note_editor.js

@@ -196,11 +196,11 @@ const noteEditor = (function() {
         return currentNote ? currentNote.detail.type : null;
     }
 
-    function executeScript() {
+    async function executeScript() {
         if (getCurrentNoteType() === 'code') {
             const script = codeEditor.getValue();
 
-            eval(script);
+            eval("(async function() {" + script + "})()");
         }
     }
 

public/javascripts/server.js

@@ -29,6 +29,14 @@ const server = (function() {
         return await call('DELETE', url);
     }
 
+    async function exec(script) {
+        if (typeof script === "function") {
+            script = script.toString();
+        }
+
+        return await post('script/exec', { script: script });
+    }
+
     let i = 1;
     const reqResolves = {};
 
@@ -92,6 +100,6 @@ const server = (function() {
         post,
         put,
         remove,
-        getHeaders
+        exec
     }
 })();

routes/api/script.js

@@ -0,0 +1,19 @@
+"use strict";
+
+const express = require('express');
+const router = express.Router();
+const auth = require('../../services/auth');
+const wrap = require('express-promise-wrap').wrap;
+const log = require('../../services/log');
+
+router.post('/exec', auth.checkApiAuth, wrap(async (req, res, next) => {
+    log.info('Executing script: ' + req.body.script);
+
+    const ret = await eval("(" + req.body.script + ")()");
+
+    log.info('Execution result: ' + ret);
+
+    res.send(ret);
+}));
+
+module.exports = router;

routes/routes.js

@@ -27,6 +27,7 @@ const anonymizationRoute = require('./api/anonymization');
 const cleanupRoute = require('./api/cleanup');
 const imageRoute = require('./api/image');
 const attributesRoute = require('./api/attributes');
+const scriptRoute = require('./api/script');
 
 function register(app) {
     app.use('/', indexRoute);
@@ -57,6 +58,7 @@ function register(app) {
     app.use('/api/anonymization', anonymizationRoute);
     app.use('/api/cleanup', cleanupRoute);
     app.use('/api/images', imageRoute);
+    app.use('/api/script', scriptRoute);
 }
 
 module.exports = {