Keycloak authentication with extended keycloak-installed adapter
| package demo; | |
| import java.util.Locale; | |
| import java.util.concurrent.Executors; | |
| import java.util.concurrent.TimeUnit; | |
| import org.keycloak.adapters.installed.KeycloakInstalled; | |
| import org.keycloak.representations.AccessToken; | |
| public class SimpleDesktopApp { | |
| public static void main(String[] args) throws Exception { | |
| int timeoutSeconds = 20; | |
| KeycloakInstalled keycloak = new KeycloakInstalled(); | |
| keycloak.setLocale(Locale.GERMAN); | |
| keycloak.setHttpResponseWriter((pw, kc) -> { | |
| pw.println("HTTP/1.1 200 OK"); | |
| pw.println(); | |
| switch (kc.getLoginStatus()) { | |
| case LOGGED_IN: | |
| pw.println("<html><h1>Login complete.</h1>" | |
| + "<div>Please <a href=\"#\" onclick=\"close_window();return false;\">close</a> this browser tab.</div></html>"); | |
| break; | |
| case LOGGED_OUT: | |
| pw.println("<html><h1>Logout complete.</h1>" | |
| + "<div>Please <a href=\"#\" onclick=\"close_window();return false;\">close</a> this browser tab.</div></html>"); | |
| break; | |
| default: | |
| // ignore | |
| } | |
| }); | |
| keycloak.loginDesktop(); | |
| AccessToken token = keycloak.getToken(); | |
| Executors.newSingleThreadExecutor().submit(() -> { | |
| System.out.println("Logged in..."); | |
| System.out.println("Token: " + token.getSubject()); | |
| System.out.println("Username: " + token.getPreferredUsername()); | |
| try { | |
| System.out.println("AccessToken: " + keycloak.getTokenString()); | |
| } catch (Exception ex) { | |
| ex.printStackTrace(); | |
| } | |
| System.out.printf("Logging out in...%d Seconds%n", timeoutSeconds); | |
| try { | |
| TimeUnit.SECONDS.sleep(timeoutSeconds); | |
| } catch (Exception e) { | |
| e.printStackTrace(); | |
| } | |
| try { | |
| keycloak.logout(); | |
| } catch (Exception e) { | |
| e.printStackTrace(); | |
| } | |
| System.out.println("Exiting..."); | |
| System.exit(0); | |
| }); | |
| } | |
| } |
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