Skip to content

Instantly share code, notes, and snippets.

@daniely
Created April 25, 2016 17:56
Show Gist options
  • Save daniely/90b60f3ec0f3e3f24cbe0d7f486661f5 to your computer and use it in GitHub Desktop.
Save daniely/90b60f3ec0f3e3f24cbe0d7f486661f5 to your computer and use it in GitHub Desktop.
// executes the given code and handles the result
var run = function(code) {
var result = {
input: code,
output: null,
error: null
};
try {
result.output = stringify(runHidden(code));
} catch(e) {
result.error = e.message;
}
if (result.output === 'undefined') {
result.output = '';
}
application.remote.output(result);
}
// protects even the worker scope from being accessed
var runHidden = function(code) {
var indexedDB = null;
var location = null;
var navigator = null;
var onerror = null;
var onmessage = null;
var performance = null;
var self = null;
var webkitIndexedDB = null;
var postMessage = null;
var close = null;
var openDatabase = null;
var openDatabaseSync = null;
var webkitRequestFileSystem = null;
var webkitRequestFileSystemSync = null;
var webkitResolveLocalFileSystemSyncURL = null;
var webkitResolveLocalFileSystemURL = null;
var addEventListener = null;
var dispatchEvent = null;
var removeEventListener = null;
var dump = null;
var onoffline = null;
var ononline = null;
var importScripts = null;
var application = null;
return eval(code);
}
// converts the output into a string
var stringify = function(output) {
var result;
if (typeof output == 'undefined') {
result = 'undefined';
} else if (output === null) {
result = 'null';
} else {
result = JSON.stringify(output) || output.toString();
}
return result;
}
application.setInterface({run:run});
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment