/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2012, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.keycloak.testsuite.forms;

import org.junit.Assert;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.keycloak.audit.Details;
import org.keycloak.audit.Event;
import org.keycloak.audit.EventType;
import org.keycloak.models.PasswordPolicy;
import org.keycloak.models.RealmModel;
import org.keycloak.models.UserCredentialModel;
import org.keycloak.models.UserModel;
import org.keycloak.representations.idm.CredentialRepresentation;
import org.keycloak.services.managers.RealmManager;
import org.keycloak.testsuite.AssertEvents;
import org.keycloak.testsuite.OAuthClient;
import org.keycloak.testsuite.MailUtil;
import org.keycloak.testsuite.pages.AppPage;
import org.keycloak.testsuite.pages.AppPage.RequestType;
import org.keycloak.testsuite.pages.LoginPage;
import org.keycloak.testsuite.pages.LoginPasswordResetPage;
import org.keycloak.testsuite.pages.LoginPasswordUpdatePage;
import org.keycloak.testsuite.rule.GreenMailRule;
import org.keycloak.testsuite.rule.KeycloakRule;
import org.keycloak.testsuite.rule.WebResource;
import org.keycloak.testsuite.rule.WebRule;
import org.openqa.selenium.WebDriver;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.IOException;
import java.util.Collections;

/**
 * @author <a href="mailto:sthorger@redhat.com">Stian Thorgersen</a>
 */
public class ResetPasswordTest {

    @ClassRule
    public static KeycloakRule keycloakRule = new KeycloakRule((new KeycloakRule.KeycloakSetup() {
        @Override
        public void config(RealmManager manager, RealmModel adminstrationRealm, RealmModel appRealm) {
            UserModel user = appRealm.addUser("login-test");
            user.setEmail("login@test.com");
            user.setEnabled(true);

            userId = user.getId();

            UserCredentialModel creds = new UserCredentialModel();
            creds.setType(CredentialRepresentation.PASSWORD);
            creds.setValue("password");

            user.updateCredential(creds);
            appRealm.setAuditListeners(Collections.singleton("dummy"));
        }
    }));

    private static String userId;

    @Rule
    public WebRule webRule = new WebRule(this);

    @Rule
    public GreenMailRule greenMail = new GreenMailRule();

    @WebResource
    protected WebDriver driver;

    @WebResource
    protected OAuthClient oauth;

    @WebResource
    protected AppPage appPage;

    @WebResource
    protected LoginPage loginPage;

    @WebResource
    protected LoginPasswordResetPage resetPasswordPage;

    @WebResource
    protected LoginPasswordUpdatePage updatePasswordPage;

    @Rule
    public AssertEvents events = new AssertEvents(keycloakRule);

    @Test
    public void resetPassword() throws IOException, MessagingException {
        resetPassword("login-test");
    }

    @Test
    public void resetPasswordByEmail() throws IOException, MessagingException {
        resetPassword("login@test.com");
    }

    private void resetPassword(String username) throws IOException, MessagingException {
        loginPage.open();
        loginPage.resetPassword();

        resetPasswordPage.assertCurrent();

        resetPasswordPage.changePassword(username);

        resetPasswordPage.assertCurrent();

        events.expectRequiredAction(EventType.SEND_RESET_PASSWORD).user(userId).detail(Details.USERNAME, username).session((String) null).detail(Details.EMAIL, "login@test.com").assertEvent().getSessionId();

        Assert.assertEquals("You should receive an email shortly with further instructions.", resetPasswordPage.getSuccessMessage());

        Assert.assertEquals(1, greenMail.getReceivedMessages().length);

        MimeMessage message = greenMail.getReceivedMessages()[0];

        String body = (String) message.getContent();
        String changePasswordUrl = MailUtil.getLink(body);

        driver.navigate().to(changePasswordUrl.trim());

        updatePasswordPage.assertCurrent();

        updatePasswordPage.changePassword("resetPassword", "resetPassword");

        events.expectRequiredAction(EventType.UPDATE_PASSWORD).user(userId).session((String) null).detail(Details.USERNAME, username).assertEvent();

        Assert.assertEquals(RequestType.AUTH_RESPONSE, appPage.getRequestType());

        Event loginEvent = events.expectLogin().user(userId).detail(Details.USERNAME, username).assertEvent();
        String sessionId = loginEvent.getSessionId();

        oauth.openLogout();

        events.expectLogout(loginEvent.getSessionId()).user(userId).session(sessionId).assertEvent();

        loginPage.open();

        loginPage.login("login-test", "resetPassword");

        events.expectLogin().user(userId).detail(Details.USERNAME, "login-test").assertEvent();

        Assert.assertEquals(RequestType.AUTH_RESPONSE, appPage.getRequestType());
    }

    @Test
    public void resetPasswordWrongEmail() throws IOException, MessagingException, InterruptedException {
        loginPage.open();
        loginPage.resetPassword();

        resetPasswordPage.assertCurrent();

        resetPasswordPage.changePassword("invalid");

        resetPasswordPage.assertCurrent();

        Assert.assertEquals("You should receive an email shortly with further instructions.", resetPasswordPage.getSuccessMessage());

        Thread.sleep(1000);

        Assert.assertEquals(0, greenMail.getReceivedMessages().length);

        events.expectRequiredAction(EventType.SEND_RESET_PASSWORD).user((String) null).session((String) null).detail(Details.USERNAME, "invalid").removeDetail(Details.EMAIL).removeDetail(Details.CODE_ID).error("user_not_found").assertEvent();
    }

    @Test
    public void resetPasswordWithPasswordPolicy() throws IOException, MessagingException {
        keycloakRule.update(new KeycloakRule.KeycloakSetup() {
            @Override
            public void config(RealmManager manager, RealmModel adminstrationRealm, RealmModel appRealm) {
                appRealm.setPasswordPolicy(new PasswordPolicy("length"));
            }
        });

        loginPage.open();
        loginPage.resetPassword();

        resetPasswordPage.assertCurrent();

        resetPasswordPage.changePassword("login-test");

        resetPasswordPage.assertCurrent();

        Assert.assertEquals("You should receive an email shortly with further instructions.", resetPasswordPage.getSuccessMessage());

        Assert.assertEquals(1, greenMail.getReceivedMessages().length);

        MimeMessage message = greenMail.getReceivedMessages()[0];

        String body = (String) message.getContent();
        String changePasswordUrl = MailUtil.getLink(body);

        events.expectRequiredAction(EventType.SEND_RESET_PASSWORD).user(userId).detail(Details.USERNAME, "login-test").detail(Details.EMAIL, "login@test.com").session((String) null).assertEvent();

        driver.navigate().to(changePasswordUrl.trim());

        updatePasswordPage.assertCurrent();

        updatePasswordPage.changePassword("invalid", "invalid");

        Assert.assertEquals("Invalid password: minimum length 8", resetPasswordPage.getErrorMessage());

        updatePasswordPage.changePassword("resetPasswordWithPasswordPolicy", "resetPasswordWithPasswordPolicy");

        events.expectRequiredAction(EventType.UPDATE_PASSWORD).user(userId).session((String) null).detail(Details.USERNAME, "login-test").assertEvent();

        Assert.assertEquals(RequestType.AUTH_RESPONSE, appPage.getRequestType());

        Event loginEvent = events.expectLogin().user(userId).detail(Details.USERNAME, "login-test").assertEvent();
        String sessionId = loginEvent.getSessionId();

        oauth.openLogout();

        events.expectLogout(loginEvent.getSessionId()).user(userId).session(sessionId).assertEvent();

        loginPage.open();

        loginPage.login("login-test", "resetPasswordWithPasswordPolicy");

        Assert.assertEquals(RequestType.AUTH_RESPONSE, appPage.getRequestType());

        events.expectLogin().user(userId).detail(Details.USERNAME, "login-test").assertEvent();
    }

}
