Respect the locale set to a user when redering verify email pages

Closes #34063

Signed-off-by: Pedro Igor <pigor.craveiro@gmail.com>

services/src/main/java/org/keycloak/authentication/actiontoken/verifyemail/VerifyEmailActionTokenHandler.java

@@ -1,13 +1,13 @@
 /*
  * Copyright 2017 Red Hat, Inc. and/or its affiliates
  * and other contributors as indicated by the @author tags.
- * 
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  * http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -82,6 +82,7 @@ public class VerifyEmailActionTokenHandler extends AbstractActionTokenHandler<Ve
             return session.getProvider(LoginFormsProvider.class)
                     .setAuthenticationSession(authSession)
                     .setInfo(Messages.EMAIL_VERIFIED_ALREADY, user.getEmail())
+                    .setUser(user)
                     .createInfoPage();
         }
 
@@ -102,6 +103,7 @@ public class VerifyEmailActionTokenHandler extends AbstractActionTokenHandler<Ve
                     .setAuthenticationSession(authSession)
                     .setSuccess(Messages.CONFIRM_EMAIL_ADDRESS_VERIFICATION, user.getEmail())
                     .setAttribute(Constants.TEMPLATE_ATTR_ACTION_URI, confirmUri)
+                    .setUser(user)
                     .createInfoPage();
         }
 
@@ -126,6 +128,7 @@ public class VerifyEmailActionTokenHandler extends AbstractActionTokenHandler<Ve
             return session.getProvider(LoginFormsProvider.class)
                     .setAuthenticationSession(authSession)
                     .setSuccess(Messages.EMAIL_VERIFIED)
+                    .setUser(user)
                     .createInfoPage();
         }
 

testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/actions/RequiredActionEmailVerificationTest.java

@@ -73,9 +73,11 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 
 import org.hamcrest.Matchers;
 import org.junit.Assume;
+import org.keycloak.testsuite.util.WaitUtils;
 import org.openqa.selenium.By;
 import org.openqa.selenium.WebDriver;
 import org.openqa.selenium.WebElement;
@@ -241,6 +243,26 @@ public class RequiredActionEmailVerificationTest extends AbstractTestRealmKeyclo
         events.expectLogin().user(userId).session(mailCodeId).detail(Details.USERNAME, "verifyemail").assertEvent();
     }
 
+    @Test
+    public void verifyEmailRegisterSetLocale() throws IOException, MessagingException {
+        RealmRepresentation realm = testRealm().toRepresentation();
+        realm.setInternationalizationEnabled(true);
+        realm.setSupportedLocales(Set.of("en", "pt"));
+        testRealm().update(realm);
+        loginPage.open();
+        loginPage.clickRegister();
+        loginPage.openLanguage("Português");
+        registerPage.register("firstName", "lastName", "locale@mail.com", "locale", "password", "password");
+
+        Assert.assertEquals(1, greenMail.getReceivedMessages().length);
+        MimeMessage message = greenMail.getReceivedMessages()[0];
+        String verificationUrl = getEmailLink(message);
+
+        driver.manage().deleteAllCookies();
+        driver.navigate().to(verificationUrl.trim());
+        assertTrue(driver.getPageSource().contains("Confirme a validade do endereço"));
+    }
+
     @Test
     public void verifyEmailFromAnotherAccountWhenUserIsAuthenticated() throws Exception {
         loginPage.open();