chore: add exception and customize error message

Author: nicholasM95

src/main/java/be/nicholasmeyers/vwgroupconnector/exception/LoginException.java

@@ -1,7 +1,7 @@
 package be.nicholasmeyers.vwgroupconnector.exception;
 
 public class LoginException extends RuntimeException {
-    public LoginException(String message) {
-        super(message);
+    public LoginException(String message, String loginUrl) {
+        super(message + " " + loginUrl);
     }
 }

src/main/java/be/nicholasmeyers/vwgroupconnector/resource/StartAuthorization.java

@@ -3,10 +3,12 @@
 public class StartAuthorization {
     private final String cookie;
     private final String relayState;
+    private final String loginUrl;
 
-    public StartAuthorization(String cookie, String relayState) {
+    public StartAuthorization(String cookie, String relayState, String loginUrl) {
         this.cookie = cookie;
         this.relayState = relayState;
+        this.loginUrl = loginUrl;
     }
 
     public String getCookie() {
@@ -16,4 +18,8 @@ public String getCookie() {
     public String getRelayState() {
         return relayState;
     }
+
+    public String getLoginUrl() {
+        return loginUrl;
+    }
 }

src/main/java/be/nicholasmeyers/vwgroupconnector/web/out/IdentityClientImpl.java

@@ -61,7 +61,7 @@ public StartAuthorization getAuthorizationEndpoint(String redirectUri, String cl
         String cookie = getCookieHeader(response.headers());
         cookie = cookie.substring(0, cookie.indexOf(";"));
         String relayState = location.substring(location.indexOf("?relayState") + 12);
-        return new StartAuthorization(cookie, relayState);
+        return new StartAuthorization(cookie, relayState, location);
     }
 
     @Override
@@ -112,7 +112,7 @@ public FinalAuthorizationInfo getFinalAuthorizationInfo(String client, StartAuth
         String responseBody = getResponseBody(response.body());
         response.close();
         if (response.status() == 303) {
-            throw new LoginException("Failed to log in (can't get the final authorization info). Please log in manually to a browser to authorize and accept the terms and conditions.");
+            throw new LoginException("Failed to log in (can't get the final authorization info). Please log in manually to a browser to authorize and accept the terms and conditions.", startAuthorization.getLoginUrl());
         }
 
         String hmac = getHmacFromString(responseBody);
@@ -133,6 +133,9 @@ public SsoLogin postEmailPassword(String client, StartAuthorization startAuthori
         headers.put("Cookie", startAuthorization.getCookie() + "; " + authorizationInfo.getCookie());
         Response response = identityClient.postEmailPassword(resource, headers, client);
         response.close();
+        if (response.status() == 303) {
+            throw new LoginException("Failed to log in (can't get the final authorization info). Please log in manually to a browser to authorize and accept the terms and conditions.", startAuthorization.getLoginUrl());
+        }
 
         String location = getLocationHeader(response.headers());
         String user = location.substring(location.indexOf("userId") + 7);
@@ -156,7 +159,7 @@ public ConsentInfo ssoLogin(String client, StartAuthorization startAuthorization
         Response response = identityClient.ssoLogin(headers, query);
         response.close();
         if (response.status() == 400) {
-            throw new LoginException("Failed to log in (can't get the final authorization info). Please log in manually to a browser to authorize and accept the terms and conditions.");
+            throw new LoginException("Failed to log in (can't get the final authorization info). Please log in manually to a browser to authorize and accept the terms and conditions.", startAuthorization.getLoginUrl());
         }
 
         String location = getLocationHeader(response.headers());