Remove bonfire and courseware controller, relying on all challenge related logic in challenge.js. Remove bonfire folder. Move necessary JS to coursewares folder and rename.

public/js/lib/coursewares/plugin_v0.1.5.js

@@ -0,0 +1,88 @@
+
+// executes the given code and handles the result
+var run = function(code) {
+  var result = {
+    input: code,
+    output: null,
+    error: null,
+    type: null
+  };
+
+  try {
+    var codeExec = runHidden(code);
+    result.type = typeof codeExec;
+    result.output = stringify(codeExec);
+  } catch(e) {
+    result.error = e.message;
+  }
+
+  application.remote.output(result);
+  self.close();
+};
+
+
+// protects even the worker scope from being accessed
+var runHidden = function(code) {
+
+  var importScript = function(url) {
+    var error = null;
+    try {
+      importScripts(url);
+    } catch (e) {
+      error = e;
+      console.log('Unable to load %s!', url);
+    }
+  };
+  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;
+  importScripts(
+    "https://cdnjs.cloudflare.com/ajax/libs/ramda/0.13.0/ramda.min.js");
+  importScripts(
+    "https://cdnjs.cloudflare.com/ajax/libs/chai/2.2.0/chai.min.js"
+  )
+
+  var expect = chai.expect;
+  var assert = chai.assert;
+
+
+  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});

public/js/lib/coursewares/sandbox.js

@@ -0,0 +1,87 @@
+var printCallback;
+// sends the input to the plugin for evaluation
+var submit = function(code,callback) {
+    printCallback = callback;
+    // postpone the evaluation until the plugin is initialized
+    plugin.whenConnected(
+        function() {
+            if (requests == 0) {
+                startLoading();
+            }
+
+            requests++;
+            plugin.remote.run(code);
+        }
+    );
+};
+
+// puts the message on the terminal
+var print = function(cls, msg) {
+    printCallback(cls,msg);
+};
+
+
+// will restart the plugin if it does not respond
+var disconnectTimeout = null;
+var startLoading = function() {
+    disconnectTimeout = setTimeout(disconnect, 3000);
+};
+
+var endLoading = function() {
+    clearTimeout(disconnectTimeout);
+};
+
+var disconnect = function() {
+    plugin.disconnect();
+};
+
+
+// interface provided to the plugin
+var api = {
+    output: function(data) {
+      endLoading();
+      //print('input', data.input);
+      if (data.error) {
+          print('Error', data);
+          reset();
+      } else {
+          print(null, data);
+          reset();
+      }
+    }
+};
+
+
+// obtaining absolute path of this script
+var scripts = document.getElementsByTagName('script');
+var path = scripts[scripts.length-1].src
+        .split('?')[0]
+        .split('/')
+        .slice(0, -1)
+        .join('/')+'/';
+
+
+
+var requests;
+
+// (re)initializes the plugin
+var reset = function() {
+    requests = 0;
+    plugin = new jailed.Plugin(path+'plugin_v0.1.5.js', api);
+    plugin.whenDisconnected( function() {
+        // give some time to handle the last responce
+        setTimeout( function() {
+            endLoading();
+            console.log("resetting on fatal plugin error");
+            codeOutput.setValue("Sorry, your code is either too slow, has a fatal error, or contains an infinite loop.");
+            reset();
+        }, 10);
+    });
+};
+
+
+
+// initialize everything
+var plugin = null;
+
+reset();