Develop Reference

Moving Basic Authentication project to Oauth

Since Microsoft disabled Basic authentication, I need to change this project for using OAuth and I cannot get it to work. Any help would be greatly appreciated.
old code:
// expose our config directly to our application using module.exports
module.exports = {
// this user MUST have full access to all the room accounts
'exchange' : {
'username' : process.env.USERNAME || 'SVCACCT_EMAIL#DOMAIN.COM',
'password' : process.env.PASSWORD || 'PASSWORD',
'uri' : 'https://outlook.office365.com/EWS/Exchange.asmx'
},
// Ex: CONTOSO.COM, Contoso.com, Contoso.co.uk, etc.
'domain' : process.env.DOMAIN || 'DOMAIN.COM'
};
module.exports = function (callback) {
// modules -------------------------------------------------------------------
var ews = require("ews-javascript-api");
var auth = require("../../config/auth.js");
// ews -----------------------------------------------------------------------
var exch = new ews.ExchangeService(ews.ExchangeVersion.Exchange2016);
exch.Credentials = new ews.ExchangeCredentials(auth.exchange.username, auth.exchange.password);
exch.Url = new ews.Uri(auth.exchange.uri);
// get roomlists from EWS and return sorted array of room list names
exch.GetRoomLists().then((lists) => {
var roomLists = [];
lists.items.forEach(function (item, i, array) {
roomLists.push(item.Name);
});
callback(null, roomLists.sort());
}, (err) => {
callback(err, null);
});
};

I recently went into the exactly situation and finally got it working after spending countless hours. Hope this post will help some lost souls like I was.
So, what happened? Basic auth to MS Exchange Online will be disabled by end of 2022. All relevant applications' authentication will require updates.
reference: https://techcommunity.microsoft.com/t5/exchange-team-blog/basic-authentication-deprecation-in-exchange-online-september/ba-p/3609437
How to do it? My use case is a simple one. A mail daemon application 1) logins and 2) download some email attachments. What happens in the background and what do you need to do are written in below article.
reference: https://learn.microsoft.com/en-us/exchange/client-developer/legacy-protocols/how-to-authenticate-an-imap-pop-smtp-application-by-using-oauth
In summary, you need to follow below steps:
Register your application with Azure Active Directory
Get an access token
Add required permissions to your app. If you are using plain password for your old project, you may refer to Use client credentials grant flow to authenticate IMAP and POP connections section in the above article. Below are a list of permissions required for my simple app. I added permission regarding email sending for future use:
Microsoft Graph:
IMAP.AccessAsUser.All
offline_access
openid
POP.AccessAsUser.All
profile
SMTP.Send
Office 365 Exchange Online:
full_access_as_app
IMAP.AccessAsApp
Mail.Read
Mail.ReadWrite
Mail.Send
Get tenant admin consent to your app (done by your Azure admin).
Register service principals in Exchange (done by your Azure admin).
This blog will talk you through above procedures:
https://blog.hametbenoit.info/2022/07/01/exchange-online-use-oauth-to-authenticate-when-using-imap-pop-or-smtp-protocol/#.Y6RdVXZBxm7
Authentication failed? you may be able to retrieve a token from Exchange server, but got an error message:"A1 NO AUTHENTICATE failed" when trying to connect to Exchange server. If you took above steps one by one, it was most likely to be a permission related issue, please refer to the list in step 3. Unfortunately, this is where took me longest to test and Exchange server does not provide more information than "you are screwed", which is a pity.
Last but not the least... Here is my sample Java code. The simple app authenticate with Exchange server using IMAP. Apache HttpCore and Jackson libraries are required.
1 - Class for access token generation:
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
public class OAuthDL {
public String getAuthToken() {
String token = "";
HttpClient httpClient = HttpClients.createDefault();
String tenant_id = "from Azure portal";
String client_id = "from Azure portal";
String client_pw = "created after app was registered";
String scope = "https://outlook.office365.com/.default";
HttpPost httpPost = new HttpPost("https://login.microsoftonline.com/" + tenant_id + "/oauth2/v2.0/token");
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("grant_type", "client_credentials"));
params.add(new BasicNameValuePair("client_id", client_id));
params.add(new BasicNameValuePair("client_secret", client_pw));
params.add(new BasicNameValuePair("scope", scope));;
try {
httpPost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
try {
HttpResponse response = httpClient.execute(httpPost);
HttpEntity respEntity = response.getEntity();
if (respEntity != null) {
String content = EntityUtils.toString(respEntity);
ObjectNode node = new ObjectMapper().readValue(content, ObjectNode.class);
if (node.has("access_token")) {
token = node.get("access_token").asText();
}
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return(token);
}
public static void main(String[] args) {
OAuthDL oa = new OAuthDL();
String token = oa.getAuthToken();
System.out.println("Token: " + token);
}
}
Class that configures protocols and authenticate with Exchange server. JavaMail is required:
import java.util.Properties;
import javax.mail.Folder;
import javax.mail.Session;
import javax.mail.Store;
public class ImapMailBoxReader {
private String host;
private String username;
private String password;
public ImapMailBoxReader(String host, String username, String password) {
this.host = host;
this.username = username;
this.password = password;
}
public void testConnection(String folder) {
try {
String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
Properties props= new Properties();
props.put("mail.imaps.ssl.enable", "true");
props.put("mail.imaps.sasl.enable", "true");
props.put("mail.imaps.port", "993");
props.put("mail.imaps.auth.mechanisms", "XOAUTH2");
props.put("mail.imaps.sasl.mechanisms", "XOAUTH2");
props.put("mail.imaps.auth.login.disable", "true");
props.put("mail.imaps.auth.plain.disable", "true");
props.setProperty("mail.imaps.socketFactory.class", SSL_FACTORY);
props.setProperty("mail.imaps.socketFactory.fallback", "false");
props.setProperty("mail.imaps.socketFactory.port", "993");
props.setProperty("mail.imaps.starttls.enable", "true");
props.put("mail.debug", "true");
props.put("mail.debug.auth", "true");
Session session = Session.getDefaultInstance(props, null);
session.setDebug(true);
Store store = session.getStore("imaps");
store.connect(host, username, password);
Folder inbox = store.getFolder(folder);
inbox.open(Folder.READ_ONLY);
inbox.close(false);
store.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
String host = "outlook.office365.com";
String username = "your email address";
OAuthDL oa = new OAuthDL();
String password = oa.getAuthToken();
ImapMailBoxReader reader = new ImapMailBoxReader(host, username, password);
reader.testConnection("inbox");
}
}
Hope this helps.

Can't connect client (Javascript) to existing socket server

I have an existing socket server that listens on port 6868. It is written in Java.
I need to connect a client to the server. The client is coded in Javascript in my React app.
I have tried just about every possible combination of tutorials I have found on the internet but I still can't get the client to connect.
import * as io from "socket.io-client";
export default () => {
// eslint-disable-next-line no-restricted-globals
self.onmessage = (message) => {
const data = message.data;
try {
var socket = io("http://localhost:6868/");
} catch (error) {
console.log("do nothing: " + error);
}
};
};
No matter what, I get the same error: ReferenceError: socket_io_client__WEBPACK_IMPORTED_MODULE_0___default is not defined.
This is the version I am using as seen in package.json: "socket.io-client": "^4.4.0"
I installed it with this command: npm i socket.io-client

Turns out that socket.io can't be used to connect to the ServerSocket that I have in Java. To fix this, I changed ServerSocket to be a WebSocketServer.
Here is all of the code needed to make Java WebSocket connect with JavaScript client:
WebsocketServer.java
import org.java_websocket.WebSocket;
import org.java_websocket.handshake.ClientHandshake;
import org.java_websocket.server.WebSocketServer;
import java.net.InetSocketAddress;
import java.util.HashSet;
import java.util.Set;
public class WebsocketServer extends WebSocketServer {
private static int TCP_PORT = 6868;
private static Set<WebSocket> conns;
public WebsocketServer() {
super(new InetSocketAddress(TCP_PORT));
conns = new HashSet<>();
}
#Override
public void onOpen(WebSocket conn, ClientHandshake handshake) {
conns.add(conn);
conn.send("hello!!");
System.out.println("New connection from " + conn.getRemoteSocketAddress().getAddress().getHostAddress());
}
#Override
public void onClose(WebSocket conn, int code, String reason, boolean remote) {
conns.remove(conn);
System.out.println("Closed connection to " + conn.getRemoteSocketAddress().getAddress().getHostAddress());
}
#Override
public void onMessage(WebSocket conn, String message) {
System.out.println("Message from client: " + message);
for (WebSocket sock : conns) {
sock.send("SENDING BACK" + message);
}
}
#Override
public void onError(WebSocket conn, Exception ex) {
//ex.printStackTrace();
if (conn != null) {
conns.remove(conn);
// do some thing if required
}
System.out.println("ERROR from " + conn.getRemoteSocketAddress().getAddress().getHostAddress());
}
public static Set<WebSocket> getConns() {
return conns;
}
}
And launch the server from main() with new WebsocketServer().start();
client.js
var connection = new WebSocket("ws://127.0.0.1:6868");
connection.onopen = function () {
console.log("Connected!");
connection.send("Ping"); // Send the message 'Ping' to the server
};
// Log errors
connection.onerror = function (error) {
console.log("WebSocket Error " + error);
};
// Log messages from the server
connection.onmessage = function (e) {
console.log("Server: " + e.data);
};
And the dependency for the Java Web Socket:
<dependency>
<groupId>
org.java-websocket
</groupId>
<artifactId>
Java-WebSocket
</artifactId>
<version>
1.3.0
</version>
</dependency>

WebSocket stomp client subscribe for some devices are not working

I am trying to implement a spring boot chat application using WebSocket stomp client. If I send messages from one device to 4,5 devices then some are getting the messages and some are not. Some can send messages but don't receive any message and some are working completely fine. My application is running on wildfly server and the URL is over https.
Here is my js file. From my JSP page I am calling sendMsg with all parameter and through render method I am attaching the response with JSP using Handlebars.
if (!window.location.origin) {
window.location.origin = window.location.protocol + "//" + window.location.hostname + (window.location.port ? ':' + window.location.port: '');
}
const url = window.location.origin+contextPath;
let stompClient;
let selectedUser;
let newMessages = new Map();
function connectToChat(userName, topicName) {
console.log("connecting to chat...")
let socket = new SockJS(url + '/chat');
stompClient = Stomp.over(socket);
stompClient.connect({}, function (frame) {
console.log("connected to: " + frame);
stompClient.subscribe("/topic/decision-log", function (response) {
let data = JSON.parse(response.body);
var msg = data.message;
var fromlogin = data.message;
render(data.username, msg, fromlogin);
});
});
}
connectToChat("1", "decision-log");
function sendMsg(from, text, username) {
stompClient.send("/app/chat/" + from, {}, JSON.stringify({
fromLogin: from,
message: text,
topicName: topicName,
username: username
}));
}
function render(username, message, projectId) {
var templateResponse = Handlebars.compile($("#message-response-template").html());
var contextResponse = {
username: username,
response: message,
date: date,
projectId: projectId
};
setTimeout(function () {
$chatHistoryList.append(templateResponse(contextResponse));
scrollToBottom();
}.bind(this), 1500);
}
Here is my WebSocket configuration file:
#Configuration
#EnableWebSocketMessageBroker
public class WebsocketConfiguration implements WebSocketMessageBrokerConfigurer{
#Override
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry.addEndpoint("/chat").setAllowedOrigins("*").withSockJS();
}
#Override
public void configureMessageBroker(MessageBrokerRegistry registry) {
registry.setApplicationDestinationPrefixes("/app").enableSimpleBroker("/topic");
}
}
This is the controller. I always save all messages on the database that are coming through WebSocket that's why I can be sure that all devices can send messages as they have been saved on the database.
#Controller
#AllArgsConstructor
public class MessageController {
#Autowired
private SimpMessagingTemplate simpMessagingTemplate;
private final DecisionLogService decisionLogService;
#MessageMapping("/chat/{to}")
public void sendMessage(#DestinationVariable String to, MessageModel message, Authentication authentication ) {
simpMessagingTemplate.convertAndSend("/topic/decision-log", message);
AuthResponse userDetails = (AuthResponse) authentication.getDetails();
DecisionLogCreateRequest decisionLogCreateRequest = new DecisionLogCreateRequest();
decisionLogCreateRequest.setDecision(message.getMessage());
decisionLogCreateRequest.setProjectId(to);
ServiceResponseExtended<Boolean> response = decisionLogService.addDecisionLog(userDetails.getAccessToken(), decisionLogCreateRequest);
}
}
I can not find anything similar this issue. Please help me with right information and suggestion, and if anyone faced same kind of problem please share with me.

The problem was solved after configuring RabbitMQ Stomp Broker as a message broker instead of SimpleBroker.
Current WebSocket configuration:
#Configuration
#EnableWebSocketMessageBroker
public class WebsocketConfiguration implements WebSocketMessageBrokerConfigurer{
#Value("${stomp-broker-relay-host}")
private String RELAY_HOST;
#Value("${stomp-broker-relay-port}")
private String RELAY_PORT;
#Value("${stomp-broker-login-user}")
private String USER;
#Value("${stomp-broker-login-pass}")
private String PASS;
#Override
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry.addEndpoint("/chat").setAllowedOrigins("*").withSockJS();
}
#Override
public void configureMessageBroker(MessageBrokerRegistry registry) {
registry.setApplicationDestinationPrefixes("/app");
registry.enableStompBrokerRelay("/topic").setRelayHost(RELAY_HOST).setRelayPort(Integer.parseInt(RELAY_PORT)).setClientLogin(USER)
.setClientPasscode(PASS);
}
}
Reference:
https://medium.com/#rameez.s.shaikh/build-a-chat-application-using-spring-boot-websocket-rabbitmq-2b82c142f85a
https://www.javainuse.com/misc/rabbitmq-hello-world

Connect rxjs websocket to spring boot server

I am new to rxjs and I want to connect a simple websocket (In my case I want make the connection with socket.io. I don't know if this is possible or not.)
I have my rxjs component here:
export function SmartHome(sources, tabSelectedSubject$) {
const socket = new IO();
socket.connect('ws://localhost:8180/devices/latest-updates');
const vdom$ = view(
model(
intent(sources.DOM, sources)
)
)
const sinks = {
DOM: vdom$,
}
return sinks
}
And I have my Spring Boot server with the following class:
public class UserHandshakeInterceptor extends HttpSessionHandshakeInterceptor {
private static final String URI_Template = "/devices/latest-updates";
#Override
public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response,
WebSocketHandler wsHandler, Map <String, Object> attributes) throws Exception {
return super.beforeHandshake(request, response, wsHandler, attributes);
}
}
How can I make the connection to the server, because it gave me a cross-origin exception?

pass data between browser and java SE project using websocket

I created a sample project using Java and JavaScript. Java is used to create the server part and JavaScript is used for client part. I have used jetty version 9.0.5 to develop javaSE project.
This is my server part:
package com.websocet;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.websocket.server.WebSocketHandler;
import org.eclipse.jetty.websocket.servlet.WebSocketServletFactory;
public class WebSocketTest {
public static void main(String[] args) throws Exception {
try{
Server server = new Server(8080);
WebSocketHandler wsHandler = new WebSocketHandler() {
#Override
public void configure(WebSocketServletFactory factory) {
factory.register(MyWebSocketHandler.class);
}
};
server.setHandler(wsHandler);
server.start();
server.join();
}catch(Exception e){
System.out.println("Error "+ e);
}
}
}
This my MyWebSocketHandler class
package com.websocet;
import java.io.IOException;
import org.eclipse.jetty.websocket.api.Session;
import org.eclipse.jetty.websocket.api.annotations.OnWebSocketClose;
import org.eclipse.jetty.websocket.api.annotations.OnWebSocketConnect;
import org.eclipse.jetty.websocket.api.annotations.OnWebSocketError;
import org.eclipse.jetty.websocket.api.annotations.OnWebSocketMessage;
import org.eclipse.jetty.websocket.api.annotations.WebSocket;
public class MyWebSocketHandler {
#OnWebSocketClose
public void onClose(int statusCode, String reason) {
System.out.println("Close: statusCode=" + statusCode + ", reason=" + reason);
}
#OnWebSocketError
public void onError(Throwable t) {
System.out.println("Error: " + t.getMessage());
}
#OnWebSocketConnect
public void onConnect(Session session) {
System.out.println("Connect: " + session.getRemoteAddress().getAddress());
try {
session.getRemote().sendString("Hello Webbrowser");
} catch (IOException e) {
System.out.println("Error -----" + e);
e.printStackTrace();
}
}
#OnWebSocketMessage
public void onMessage(String message) {
System.out.println("Message: " + message);
}
}
This is my client part:
console.log("start index.js");
var ws = new WebSocket("ws://localhost:8080/");
ws.onopen = function() {
console.log("Opened!");
ws.send("Hello Server");
};
ws.onmessage = function (evt) {
console.log("Message: " + evt.data);
};
ws.onclose = function() {
console.log("connection Closed...");
};
ws.onerror = function(err) {
console.log("Error"+ err);
};
when I run the server part it works well.
2015-12-11 12:02:31.081:INFO:oejs.Server:main: jetty-9.0.5.v20130815
2015-12-11 12:02:31.141:INFO:oejs.ServerConnector:main: Started ServerConnector#470e2030{HTTP/1.1}{0.0.0.0:8080}
But after I run client part, the server throws below exception.
2015-12-11 12:02:42.055:WARN:oejs.HttpChannel:qtp769287236-18: /
org.eclipse.jetty.websocket.api.InvalidWebSocketException: com.websocet.MyWebSocketHandler does not implement org.eclipse.jetty.websocket.api.WebSocketListener or declare #WebSocket
at org.eclipse.jetty.websocket.common.events.EventDriverFactory.wrap(EventDriverFactory.java:385)
at org.eclipse.jetty.websocket.server.WebSocketServerFactory.acceptWebSocket(WebSocketServerFactory.java:177)
at org.eclipse.jetty.websocket.server.WebSocketHandler.handle(WebSocketHandler.java:90)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:445)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:268)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:229)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.run(AbstractConnection.java:358)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:601)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:532)
at java.lang.Thread.run(Thread.java:745)
I downloaded jetty-distribution-9.0.5.v20130815 and added it in to eclipse IDE.
I am new to web socket. So please help me to resolve this problem. My goal is getting data from my web browser and passing it into my JavaSE project. If anyone knows to do this please let me know.

I found the answer to my question. I had missed an annotation. It has to be corrected as #WebSocket
#WebSocket
public class MyWebSocketHandler {
......
}