Additional test case added to check the text in the 'Back to application' link

services/src/main/java/org/keycloak/services/resources/AccountService.java

@@ -788,7 +788,11 @@ public class AccountService extends AbstractSecuredLocalService {
             }
 
             if (referrerUri != null) {
-                return new String[]{referrerClient.getName(), referrerUri};
+                String referrerName = referrerClient.getName();
+                if (Validation.isBlank(referrerName)) {
+                    referrerName = referrer;
+                }
+                return new String[]{referrerName, referrerUri};
             }
         } else if (referrerUri != null) {
             referrerClient = realm.getClientByClientId(referrer);

testsuite/integration-arquillian/tests/base/src/main/java/org/keycloak/testsuite/pages/AccountUpdateProfilePage.java

@@ -20,6 +20,7 @@ package org.keycloak.testsuite.pages;
 import org.keycloak.models.Constants;
 import org.keycloak.services.resources.RealmsResource;
 import org.openqa.selenium.By;
+import org.openqa.selenium.NoSuchElementException;
 import org.openqa.selenium.WebElement;
 import org.openqa.selenium.support.FindBy;
 
@@ -143,6 +144,24 @@ public class AccountUpdateProfilePage extends AbstractAccountPage {
     public void backToApplication() {
         backToApplicationLink.click();
     }
+    
+    public String getBackToApplicationLinkText() {
+        try {
+            // Optional screen element, may not be present
+            return backToApplicationLink.getText();
+        } catch (NoSuchElementException ignored) {
+            return null;
+        }
+    }
+    
+    public String getBackToApplicationLinkHref() {
+        try {
+            // Optional screen element, may not be present
+            return backToApplicationLink.getAttribute("href");
+        } catch (NoSuchElementException ignored) {
+            return null;
+        }
+    }
 
     public String getSuccess(){
         return successMessage.getText();

testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/account/AccountTest.java

@@ -16,16 +16,26 @@
  */
 package org.keycloak.testsuite.account;
 
+import static org.hamcrest.Matchers.containsInAnyOrder;
+
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+import javax.ws.rs.core.UriBuilder;
+
 import org.jboss.arquillian.drone.api.annotation.Drone;
 import org.jboss.arquillian.graphene.page.Page;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
+import org.keycloak.admin.client.resource.RealmResource;
 import org.keycloak.events.Details;
 import org.keycloak.events.Errors;
 import org.keycloak.events.EventType;
 import org.keycloak.models.utils.TimeBasedOTP;
+import org.keycloak.representations.idm.ClientRepresentation;
 import org.keycloak.representations.idm.EventRepresentation;
 import org.keycloak.representations.idm.RealmRepresentation;
 import org.keycloak.representations.idm.UserRepresentation;
@@ -53,13 +63,6 @@ import org.keycloak.testsuite.util.UserBuilder;
 import org.openqa.selenium.By;
 import org.openqa.selenium.WebDriver;
 
-import javax.ws.rs.core.UriBuilder;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
-import static org.hamcrest.Matchers.*;
-
 /**
  * @author <a href="mailto:sthorger@redhat.com">Stian Thorgersen</a>
  * @author Stan Silvert ssilvert@redhat.com (C) 2016 Red Hat Inc.
@@ -829,4 +832,40 @@ public class AccountTest extends TestRealmKeycloakTest {
 
         events.clear();
     }
+    
+    @Test
+    public void testReferrerLinkContents() {
+        RealmResource testRealm = testRealm();
+        List<ClientRepresentation> foundClients = testRealm.clients().findByClientId("named-test-app");
+        if (foundClients.isEmpty()) {
+            Assert.fail("Unable to find named-test-app");
+        }
+        ClientRepresentation namedClient = foundClients.get(0);
+        
+        driver.navigate().to(profilePage.getPath() + "?referrer=" + namedClient.getClientId());
+        loginPage.login("test-user@localhost", "password");
+        Assert.assertTrue(profilePage.isCurrent());
+        // When a client has a name provided, the name should be available to the back link
+        Assert.assertEquals("Back to " + namedClient.getName(), profilePage.getBackToApplicationLinkText());
+        Assert.assertEquals(namedClient.getBaseUrl(), profilePage.getBackToApplicationLinkHref());
+        
+        foundClients = testRealm.clients().findByClientId("test-app");
+        if (foundClients.isEmpty()) {
+            Assert.fail("Unable to find test-app");
+        }
+        ClientRepresentation namelessClient = foundClients.get(0);
+        
+        driver.navigate().to(profilePage.getPath() + "?referrer=" + namelessClient.getClientId());
+        Assert.assertTrue(profilePage.isCurrent());
+        // When a client has no name provided, the client-id should be available to the back link
+        Assert.assertEquals("Back to " + namelessClient.getClientId(), profilePage.getBackToApplicationLinkText());
+        Assert.assertEquals(namelessClient.getBaseUrl(), profilePage.getBackToApplicationLinkHref());
+
+        driver.navigate().to(profilePage.getPath() + "?referrer=test-invalid");
+        Assert.assertTrue(profilePage.isCurrent());
+        // When a client is invalid, the back link should not exist
+        Assert.assertNull(profilePage.getBackToApplicationLinkText());
+
+        events.clear();
+    }
 }

testsuite/integration-arquillian/tests/base/src/test/resources/testrealm.json

@@ -304,6 +304,17 @@
         "/test-app-authz/*"
       ],
       "secret": "secret"
+    },
+    {
+      "clientId": "named-test-app",
+      "name": "My Named Test App",
+      "enabled": true,
+      "baseUrl": "http://localhost:8180/namedapp/base",
+      "redirectUris": [
+        "http://localhost:8180/namedapp/base/*"
+      ],
+      "adminUrl": "http://localhost:8180/namedapp/base/admin",
+      "secret": "password"
     }
   ],
   "roles" : {