added final questions

added ssl certificate and switched from http & ws to https &wss
files to exchange for you are server/cert.pm for the certificate and server/key.pem for the key of the Hochschul certifiacte

.vscode/launch.json

@@ -5,7 +5,7 @@
             "type": "chrome",
             "request": "launch",
             "name": "Launch Chrome",
-            "url": "http://localhost:8000",
+            "url": "https://localhost:8000",
             "webRoot": "${workspaceFolder}/client"
         },
 

client/ws-client.js

@@ -7,7 +7,8 @@ var SpeechRecognitionEvent = SpeechRecognitionEvent || webkitSpeechRecognitionEv
 // #region state management
 var state = '';
 var question = 0;
-var rePrompt = false;
+// currently disabled feature
+// var rePrompt = false;
 var partTwo = false;
 var questionThreeCount = 0;
 var strike = 0;
@@ -20,20 +21,25 @@ const QUESTION_TWO = 'Nennen Sie mir bitte so viel Dinge wie möglich, die man i
 const QUESTION_THREE = 'Ich werde Ihnen jetzt eine Zahlenreihe nennen, die Sie mir dann bitte in umgekehrter Reihenfolge wiederholen sollen. Wenn ich beispielsweise, vier - fünf sage, dann sagen Sie bitte, fünf - vier.';
 const QUESTION_FOUR = 'Wir kommen nun zur vierten Frage. Bitte zählen Sie von 76 an rückwärts. Nennen Sie die Zahlen abwechselnd als ganze Zahlen und als einzelne Ziffern. Zum Beispiel:';
 const QUESTION_FOUR_PT2 = ['34', '3, 3', '32', '3, 1'];
+const QUESTION_FIVE = 'Ganz am Anfang dieses Tests habe ich Ihnen 10 Worte genannt. Können Sie sich noch an diese Worte erinnern?';
 // #endregion
 
+const FINISH = 'Sie sind jetzt fertig mit dem Test, Vielen Dank.';
+
 // #region intents
 const WELCOME_INTENT = 'Default Welcome Intent';
 const WELCOME_FOLLOWUP_YES = 'Default Welcome Intent - yes';
 const WELCOME_FOLLOWUP_NO = 'Default Welcome Intent - no';
-const MORE_TIME = 'Add Time Intent';
-const MORE_TIME_YES = 'Add Time Intent - yes';
-const MORE_TIME_NO = 'Add Time Intent - no';
+// currently disabled feature
+// const MORE_TIME = 'Add Time Intent';
+// const MORE_TIME_YES = 'Add Time Intent - yes';
+// const MORE_TIME_NO = 'Add Time Intent - no';
 const QUIT_INTENT = 'Quit Intent';
 const FALLBACK_INTENT = 'Default Fallback Intent';
 const HELP_INTENT = 'Help Intent';
 const CHOOSE_QUESTION = 'Frage_Starten';
-const NEXT_QUESTION = 'Nächste Frage';
+// disabled feature
+// const NEXT_QUESTION = 'Nächste Frage';
 // #endregion
 
 // #region questions and expected results
@@ -93,7 +99,7 @@ var questionNumDisplay = document.querySelector('.quest');
 // #endregion
 
 // websocket to communicate with the server
-var ws = new WebSocket('ws://' + window.location.host + window.location.pathname + 'ws');
+var ws = new WebSocket('wss://' + window.location.host + window.location.pathname + 'ws');
 
 // #region speech recognition initialization
 var recognition = new SpeechRecognition();
@@ -102,7 +108,7 @@ recognition.lang = 'de-DE';
 recognition.maxAlternatives = 1;
 recognition.continuous = true;
 var answerQuery = '';
-var skipRecording = false;
+var proceedWithRecording = false;
 // #endregion
 
 // #region speech synthesis initialization
@@ -125,23 +131,11 @@ window.speechSynthesis.onvoiceschanged = function () {
 };
 
 speechsynth.onend = function (event) {
-  switch (question) {
-    case 1:
-      break;
-    case 2:
-      break;
-    case 3:
-      break;
-    case 4:
-      break;
-    case 5:
-      break;
-  }
-  if (!skipRecording) {
+  if (proceedWithRecording) {
     recognition.start();
     console.log('reocgnition started. Question: ' + question);
   }
-  skipRecording = false;
+  proceedWithRecording = false;
   diagnosticPara.textContent = '';
   console.log('global speech end');
 };
@@ -156,7 +150,6 @@ ws.onopen = function () {
 ws.onmessage = function (payload) {
   var dialogflowResult = JSON.parse(payload.data);
   checkIntent(dialogflowResult);
-  // document.querySelector('h1').innerHTML = dialogflowResult.intent.displayName;
 };
 // #endregion
 
@@ -165,48 +158,52 @@ function checkIntent (result) {
   switch (result.intent.displayName) {
     case QUIT_INTENT:
       state = 'quit';
-      if (timerId !== undefined) {
-        clearTimeout(timerId);
-      }
-      skipRecording = true;
+      stopRecognitionFallback();
       speak('Beende die Durchführung.');
       break;
     case WELCOME_INTENT:
       state = 'detect';
+      proceedWithRecording = true;
       speak(result.fulfillmentText);
       break;
     case WELCOME_FOLLOWUP_YES:
       startQuestion(1);
       break;
     case WELCOME_FOLLOWUP_NO:
-      skipRecording = true;
-      speak('Okay, Danke fürs Benutzen.');
+      speak('Alles klar. Danke fürs Benutzen.');
       break;
-    case MORE_TIME:
-      state = 'detect';
-      speak('Brauchen Sie noch etwas Zeit?');
-      break;
-    case MORE_TIME_YES:
-      rePrompt = true;
-      state = 'answer';
-      speak('Alles klar');
-      break;
-    case MORE_TIME_NO:
-      skipRecording = true;
-      state = 'answer';
-      speak('Verstanden');
+    /// /// /// currently disabled feature
+    // case MORE_TIME:
+    //   state = 'detect';
+    //   proceedWithRecording = true;
+    //   speak('Brauchen Sie noch etwas Zeit?');
+    //   break;
+    // case MORE_TIME_YES:
+    //   rePrompt = true;
+    //   state = 'answer';
+    //   proceedWithRecording = true;
+    //   speak('Alles klar');
+    //   break;
+    // case MORE_TIME_NO:
+    //   state = 'answer';
+    //   speak('Verstanden');
+    //   recognition.stop();
+    //   ws.send(answerQuery);
+    //   break;
+    // case CHOOSE_QUESTION:
+    //     question = result.parameters.fields.num.numberValue;
+    //     state = 'answer';
+    //     handleQuestion();
+    //     break;
+    /// /// ///
+    case HELP_INTENT:
+      stopRecognitionFallback();
       recognition.stop();
-      ws.send(answerQuery);
-      break;
-    case CHOOSE_QUESTION:
-      question = result.parameters.fields.num.numberValue;
-      state = 'answer';
-      handleQuestion();
+      startQuestion(question);
       break;
     case FALLBACK_INTENT:
-      // if (state === 'answer') {
-      //   handleAnswer(result.queryText)
-      // }
+      // fallback what should happen if no intent is detected
+      // this is handled in the processSpeech() function
       break;
     default:
       break;
@@ -217,6 +214,7 @@ function checkIntent (result) {
 function startQuestion (number) {
   question = number;
   state = 'answer';
+  answerQuery = '';
   questionNumDisplay.textContent = 'Question: ' + question;
   handleQuestion();
 }
@@ -224,9 +222,7 @@ function startQuestion (number) {
 function handleQuestion () {
   switch (question) {
     case 1:
-      skipRecording = true;
-      speak(QUESTION_ONE);
-      readQuestionOne();
+      readQuestionOne(QUESTION_ONE);
       break;
     case 2:
       readQuestionTwo();
@@ -238,11 +234,14 @@ function handleQuestion () {
       readQuestionFour();
       break;
     case 5:
+      proceedWithRecording = true;
+      speak(QUESTION_FIVE);
       break;
   }
 }
 
-function readQuestionOne () {
+function readQuestionOne (questionText) {
+  speak(questionText);
   for (let i = 0; i < QUESTION_ONE_QUESTIONS.length; i++) {
     let utterance = new SpeechSynthesisUtterance();
     utterance.voice = voices[2];
@@ -280,7 +279,6 @@ function readQuestionTwo () {
 }
 
 function readQuestionThree () {
-  skipRecording = true;
   speak('Dankeschön, weiter geht es mit der nächsten Frage.');
   let utterance = new SpeechSynthesisUtterance();
   utterance.voice = voices[2];
@@ -288,13 +286,13 @@ function readQuestionThree () {
   utterance.rate = 0.88;
   window.speechSynthesis.speak(utterance);
   utterance.onend = function (event) {
+    proceedWithRecording = true;
     speak(QUESTION_THREE_QUESTIONS_PT1[questionThreeCount]);
   };
 }
 
 function readQuestionFour () {
-  // skipRecording = true;
-  // speak(QUESTION_FOUR);
+  speak(QUESTION_FOUR);
   for (let i = 0; i < QUESTION_FOUR_PT2.length; i++) {
     let utterance = new SpeechSynthesisUtterance();
     utterance.voice = voices[2];
@@ -302,7 +300,7 @@ function readQuestionFour () {
     utterance.text = QUESTION_FOUR_PT2[i];
     window.speechSynthesis.speak(utterance);
   }
-  // speak('Sie haben hierfür 1 Minute Zeit.');
+  speak('Sie haben hierfür 1 Minute Zeit.');
 }
 
 function handleAnswer (query) {
@@ -317,37 +315,33 @@ function handleAnswer (query) {
       handleAnswerToThirdQuestion(query);
       break;
     case 4:
+      // not possible with the current state of web speech api
+      // handleAnswerToFourthQuestion(query);
       break;
     case 5:
+      handleAnswerToFifthQuestion(query);
       break;
   }
 }
 
 function handleAnswerToFirstQuestion (answer) {
-  var tokens = answer.split(new RegExp(separators.join('|'), 'g'));
-  questionPoints[question] += calculatePoints(tokens, QUESTION_ONE_ANSWERS);
+  deconstructAndCalculateAnswer(answer);
   if (partTwo) {
     partTwo = false;
-    console.log('question 1 points: ' + questionPoints[question]);
-    skipRecording = true;
     speak('Vielen Dank, nun geht es weiter mit der nächsten Frage');
     startQuestion(2);
-    // state = 'detect'
   } else {
-    rePrompt = false;
-    skipRecording = true;
+    // currently disabled feature
+    // rePrompt = false;
     speak(QUESTION_ONE_PT2);
-    readQuestionOne(QUESTION_ONE);
+    readQuestionOne(QUESTION_ONE_PT2);
     partTwo = true;
   }
 }
 
 function handleAnswerToSecondQuestion (answer) {
-  var tokens = answer.split(new RegExp(separators.join('|'), 'g'));
-  questionPoints[question] = calculatePoints(tokens, QUESTION_TWO_ANSWERS);
-  console.log('question 2 points: ' + questionPoints[question]);
+  deconstructAndCalculateAnswer(answer);
   startQuestion(3);
-  // state = 'detect'
 }
 
 function handleAnswerToThirdQuestion (query) {
@@ -376,41 +370,58 @@ function handleAnswerToThirdQuestion (query) {
   if (strike === 2 || questionThreeCount === 5) {
     speechsynth.rate = 0.88;
     console.log('question 3 points: ' + questionPoints[question]);
-    skipRecording = true;
     speak('weiter geht es mit der Nächsten Frage');
-    startQuestion(4);
+    // Question 4 is not possible to take, because of technical limitation
+    // startQuestion(4);
+
+    startQuestion(5);
     return;
   }
-
+  proceedWithRecording = true;
   speak(questionArray[questionThreeCount]);
 
   console.log('count: ' + questionThreeCount + ', strike: ' + strike + ', points: ' + questionPoints[question]);
 }
+
+// not possible with the current state of web speech api
+// function handleAnswerToFourthQuestion (answer) {
+//   // In order to evaluate the answer, the recognizer has to distinguish between the number 77 spoken "seventy seven" and 7-7 spoken "seven seven", which it doesnt
+//   startQuestion(5);
+// }
+
+function handleAnswerToFifthQuestion (answer) {
+  deconstructAndCalculateAnswer(answer);
+  speak(FINISH);
+}
+
 // #endregion
 
+// NOT SUPPORTED
 // function recognizeSpeech () {
-// if (state === 'answer') {
 //   var arr;
 //   switch (question) {
 //     case 1:
 //       arr = QUESTION_ONE_QUESTIONS;
 //       break;
 //     case 2:
-//       // arr = QUESTION_TWO_QUESTIONS;
+//       arr = QUESTION_TWO_QUESTIONS;
 //       break;
 //     case 3:
 //       arr = [1, 2, 3, 4, 5, 6, 7, 8, 9];
 //       break;
 //     case 4:
+//       arr = ['eins', 'zwei', 'drei', 'vier', 'fünf', 'sechs', 'sieben', 'acht', 'neun'];
 //       break;
 //     case 5:
 //       break;
 //   }
 
-//   // var grammar = '#JSGF V1.0; grammar colors; public <color> = ' + arr.join(' | ') + ' ;';
-//   // var speechRecognitionList = new SpeechGrammarList();
-//   // speechRecognitionList.addFromString(grammar, 1);
-//   // recognition.grammars = speechRecognitionList;
+//   var grammar = '#JSGF V1.0; grammar arr; public <arr> = ' + arr.join(' | ') + ' ;';
+//   var speechRecognitionList = new SpeechGrammarList();
+//   speechRecognitionList.addFromString(grammar, 1);
+//   recognition.grammars = speechRecognitionList;
+
+//   recognition.start();
 // }
 
 // #region speech recognition event
@@ -506,18 +517,16 @@ function processSpeech (speechResult) {
   }
 
   if (state === 'answer') {
-    if (timerId != undefined) {
-      clearTimeout(timerId);
-    }
+    stopRecognitionFallback();
     answerQuery += speechResult;
     timerId = window.setTimeout(
       function () {
+        // currently disabled
         // if (!rePrompt) {
         //   ws.send('ich brauche noch etwas Zeit')
         // } else {
         console.log('recording end. Evaluate: ' + answerQuery);
         handleAnswer(answerQuery);
-        answerQuery = '';
         diagnosticPara.textContent = '';
         // }
         recognition.stop();
@@ -539,14 +548,7 @@ function startDemenzScreening () {
 }
 
 function testSpeechOut () {
-  readQuestionFour();
-
-  // speechsynth.text = 'test 123';
-  // speechsynth.volume = 1;
-  // speechsynth.rate = 1;
-  // console.log(speechsynth);
-  // window.speechSynthesis.speak(speechsynth);
-  // console.log(window.speechSynthesis);
+  question = 4;
 }
 
 function speak (sentence) {
@@ -554,6 +556,29 @@ function speak (sentence) {
   window.speechSynthesis.speak(speechsynth);
 }
 
+function stopRecognitionFallback () {
+  if (timerId != undefined) {
+    clearTimeout(timerId);
+  }
+}
+
+function deconstructAndCalculateAnswer (answer) {
+  let questionAnswers;
+  switch (question) {
+    case 1:
+      questionAnswers = QUESTION_ONE_ANSWERS;
+      break;
+    case 2:
+      questionAnswers = QUESTION_TWO_ANSWERS;
+      break;
+    case 5:
+      questionAnswers = QUESTION_ONE_ANSWERS;
+      break;
+  }
+  var tokens = answer.split(new RegExp(separators.join('|'), 'g'));
+  questionPoints[question] += calculatePoints(tokens, questionAnswers);
+}
+
 function calculatePoints (tokens, d) {
   let points = 0;
   let dict = {};

server/cert.pem

@@ -0,0 +1,23 @@
+-----BEGIN CERTIFICATE-----
+MIID1zCCAr8CFFQdsOqUqVpXkNcENXj66TeS6crHMA0GCSqGSIb3DQEBCwUAMIGn
+MQswCQYDVQQGEwJERTEQMA4GA1UECAwHQkFWQVJJQTESMBAGA1UEBwwJTlVSRU1C
+RVJHMQwwCgYDVQQKDANPSE0xDjAMBgNVBAsMBURFTUJBMTMwMQYDVQQDDCpodHRw
+czovL21lZGluZi5lZmkudGgtbnVlcm5iZXJnLmRlL2RlbWVuei8xHzAdBgkqhkiG
+9w0BCQEWEG5pa29fYmVsZUBnbXguZGUwHhcNMTkwOTA1MTQ0MjMzWhcNNDcwMTIw
+MTQ0MjMzWjCBpzELMAkGA1UEBhMCREUxEDAOBgNVBAgMB0JBVkFSSUExEjAQBgNV
+BAcMCU5VUkVNQkVSRzEMMAoGA1UECgwDT0hNMQ4wDAYDVQQLDAVERU1CQTEzMDEG
+A1UEAwwqaHR0cHM6Ly9tZWRpbmYuZWZpLnRoLW51ZXJuYmVyZy5kZS9kZW1lbnov
+MR8wHQYJKoZIhvcNAQkBFhBuaWtvX2JlbGVAZ214LmRlMIIBIjANBgkqhkiG9w0B
+AQEFAAOCAQ8AMIIBCgKCAQEA56EWGyHlMUIuMn8YgSafG+a6tMq42o0lD1bYdxep
+XtzwrAkj4o+3WBMzA8fhlo1giF2V20gl0lAsB4qj4BBW9RjwFjdxegRIu9bGbmHw
+YzUgUuGvUJVNgfxXsIfwFh7umlh5cR2vVR1KfO8doYpXP0VfFdlIILl41G5tvKXk
+vgB61LE2D8jkBwX71OLSw5qEJP3gGmvhOdxoOf56KY6tDHvPMLiTrK4W6cZXIcw0
+IPuHt9VTVfApk8Amq+QWTup3szdoGfnDANZrbip+SsRneXPgGSvf6uv3+RefBrZN
+qCLadUjpjRyqlCxjnvHhUtDzn/dy5DvYw2rY5ylqtgGPPQIDAQABMA0GCSqGSIb3
+DQEBCwUAA4IBAQBGgbENTZjSbjokv4sqkHBEMCQSnLtsjiYWVaTdJlBdAB2B4xgH
+xygnqQOl3RnN07OZ91TTlLPQYAWEmvmUG0aoJQCW2ZeyB9YfCWct7uLFpZCm0C8w
+uWq4Uc+PzuJ/QTM6Yz4TJJzni/XzZT1lyxz07XQDlvJj1ex8ifyDPXqGcwaGrZ/Z
+b+iBvTF1KbaYSZ6RB8jr2BH8HWk3gdGtndThnKxaDv5101LUoVYZR3TqsTxLpAoG
+dTNwZtGRD5jg9r0icjsUV1yH2ZieouJZECi7Oia2cZ6iIJqio2ARuPEP/H3vbwFM
+Juy1ZC1b1X7dRGZigTQqBE7By38yXg4Y++BU
+-----END CERTIFICATE-----

server/key.pem

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----

server/ws-server.js

@@ -3,7 +3,9 @@ const dialogflow = require('dialogflow');
 
 // server and websocket
 const WebSocket = require('ws');
+var fs = require('fs');
 const http = require('http');
+const https = require('https');
 const path = require('path');
 const express = require('express');
 
@@ -20,7 +22,11 @@ app.use(express.static(__dirname + '/../client'));
 
 app.use('/', router);
 
-var server = http.createServer(app);
+// var server = http.createServer(app);
+var server = https.createServer({
+  key: fs.readFileSync('key.pem'),
+  cert: fs.readFileSync('cert.pem')
+}, app);
 
 server.listen(process.env.port || webSocketsServerPort, function () {
   console.log((new Date()) + ' Server is listening on port ' +