Merge pull request #3233 from betovieirasilva/master-KEYCLOAK-LoginUsername

[PULL-REQUEST-3181 & PULL-REQUEST-3233] Username is not displayed on the login screen with that email

services/src/main/java/org/keycloak/services/managers/AuthenticationManager.java

@@ -408,7 +408,7 @@ public class AuthenticationManager {
         // refresh the cookies!
         createLoginCookie(session, realm, userSession.getUser(), userSession, uriInfo, clientConnection);
         if (userSession.getState() != UserSessionModel.State.LOGGED_IN) userSession.setState(UserSessionModel.State.LOGGED_IN);
-        if (userSession.isRememberMe()) createRememberMeCookie(realm, userSession.getUser().getUsername(), uriInfo, clientConnection);
+        if (userSession.isRememberMe()) createRememberMeCookie(realm, userSession.getLoginUsername(), uriInfo, clientConnection);
 
         // Update userSession note with authTime. But just if flag SSO_AUTH is not set
         if (!isSSOAuthentication(clientSession)) {

testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/forms/LoginTest.java

@@ -480,6 +480,40 @@ public class LoginTest extends TestRealmKeycloakTest {
             setRememberMe(false);
         }
     }
+    
+    @Test
+    // KEYCLOAK-3181
+    public void loginWithEmailUserAndRememberMe() {
+        setRememberMe(true);
+
+        try {
+            loginPage.open();
+            loginPage.setRememberMe(true);
+            assertTrue(loginPage.isRememberMeChecked());
+            loginPage.login("login@test.com", "password");
+
+            Assert.assertEquals(RequestType.AUTH_RESPONSE, appPage.getRequestType());
+            Assert.assertNotNull(oauth.getCurrentQuery().get(OAuth2Constants.CODE));
+            EventRepresentation loginEvent = events.expectLogin().user(userId)
+                                                   .detail(Details.USERNAME, "login@test.com")
+                                                   .detail(Details.REMEMBER_ME, "true")
+                                                   .assertEvent();
+            String sessionId = loginEvent.getSessionId();
+
+            // Expire session
+            testingClient.testing().removeUserSession("test", sessionId);
+
+            // Assert rememberMe checked and username/email prefilled
+            loginPage.open();
+            assertTrue(loginPage.isRememberMeChecked());
+            
+            Assert.assertEquals("login@test.com", loginPage.getUsername());
+
+            loginPage.setRememberMe(false);
+        } finally {
+            setRememberMe(false);
+        }
+    }
 
     // KEYCLOAK-1037
     @Test