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 * JBoss, Home of Professional Open Source.
 * Copyright 2013, 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.jboss.as.test.integration.ejb.security.missingmethodpermission;

import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OUTCOME;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.SUCCESS;

import java.util.concurrent.Callable;

import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.as.arquillian.api.ServerSetup;
import org.jboss.as.arquillian.container.ManagementClient;
import org.jboss.as.test.integration.ejb.security.EjbSecurityDomainSetup;
import org.jboss.as.test.integration.security.common.AbstractSecurityDomainSetup;
import org.jboss.as.test.shared.integration.ejb.security.Util;
import org.jboss.dmr.ModelNode;
import org.jboss.logging.Logger;
import org.jboss.shrinkwrap.api.Archive;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.shrinkwrap.api.spec.EnterpriseArchive;
import org.jboss.shrinkwrap.api.spec.JavaArchive;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;

import javax.ejb.EJBAccessException;
import javax.naming.InitialContext;

/**
 * Tests the <code>missing-method-permissions-deny-access</code> configuration which lets users decide whether secured beans whose
 * methods don't have explicit security configurations, are denied access or allowed access
 *
 * @author Jaikiran Pai
 */
@RunWith(Arquillian.class)
@ServerSetup(MissingMethodPermissionsTestCase.DefaultEjbSecurityDomainSetup.class)
public class MissingMethodPermissionsTestCase {

    private static final Logger logger = Logger.getLogger(MissingMethodPermissionsTestCase.class);

    private static final String APP_NAME = "missing-method-permissions-test-app";

    private static final String MODULE_ONE_NAME = "missing-method-permissions-test-ejb-jar-one";

    private static final String MODULE_TWO_NAME = "missing-method-permissions-test-ejb-jar-two";

    private static final String MODULE_THREE_NAME = "missing-method-permissions-test-ejb-jar-three";

    @Deployment
    public static Archive createDeployment() {
        final Package currentPackage = MissingMethodPermissionsTestCase.class.getPackage();

        final JavaArchive ejbJarOne = ShrinkWrap.create(JavaArchive.class, MODULE_ONE_NAME + ".jar")
                .addClasses(SecuredBeanOne.class)
                .addAsManifestResource(currentPackage, "one-jboss-ejb3.xml", "jboss-ejb3.xml");

        final JavaArchive ejbJarTwo = ShrinkWrap.create(JavaArchive.class, MODULE_TWO_NAME + ".jar")
                .addClass(SecuredBeanTwo.class)
                .addAsManifestResource(currentPackage, "two-jboss-ejb3.xml", "jboss-ejb3.xml");

        final JavaArchive ejbJarThree = ShrinkWrap.create(JavaArchive.class, MODULE_THREE_NAME + ".jar")
                .addClass(SecuredBeanThree.class);

        final JavaArchive libJar = ShrinkWrap.create(JavaArchive.class, "bean-interfaces.jar")
                .addClasses(AbstractSecurityDomainSetup.class, EjbSecurityDomainSetup.class)
                .addClasses(SecurityTestRemoteView.class, Util.class, MissingMethodPermissionsTestCase.class);

        final EnterpriseArchive ear = ShrinkWrap.create(EnterpriseArchive.class, APP_NAME + ".ear")
                .addAsModules(ejbJarOne, ejbJarTwo, ejbJarThree)
                .addAsLibrary(libJar)
                .addAsManifestResource(currentPackage, "permissions.xml", "permissions.xml");

        return ear;
    }

    /**
     * Tests that methods without any explicit security permissions on an EJB marked
     * with <missing-method-permissions-deny-access>false</missing-method-permissions-deny-access> are allowed access
     *
     * @throws Exception
     */
    @Test
    public void testAllowAccessForMethodsMissingPermissions() throws Exception {
        Callable<Void> callable = () -> {
            final SecurityTestRemoteView allowAccessBean = InitialContext.doLookup("java:global/" + APP_NAME + "/" + MODULE_ONE_NAME + "/" + SecuredBeanOne.class.getSimpleName() + "!" + SecurityTestRemoteView.class.getName());
            // first invoke on a method which has a specific role and that invocation should pass
            final String callerPrincipalName = allowAccessBean.methodWithSpecificRole();
            Assert.assertEquals("Unexpected caller prinicpal", "user1", callerPrincipalName);
            // now invoke on a method which doesn't have an explicit security configuration. The SecuredBeanOne (deployment) is configured for
            // <missing-method-permissions-deny-access>false</missing-method-permissions-deny-access>
            // so the invocation on such a method is expected to fail
            final String callerPrincipalForMethodWithNoRole = allowAccessBean.methodWithNoRole();
            Assert.assertEquals("Unexpected caller prinicpal when invoking method with no role", "user1", callerPrincipalForMethodWithNoRole);
            return null;
        };
        // establish an identity using the security domain associated with the beans in the JARs in the EAR deployment
        Util.switchIdentity("user1", "password1", callable, SecuredBeanOne.class.getClassLoader());
    }

    /**
     * Tests that methods without any explicit security permissions on an EJB marked
     * with <missing-method-permissions-deny-access>true</missing-method-permissions-deny-access> are denied access
     *
     * @throws Exception
     */
    @Test
    public void testDenyAccessForMethodsMissingPermissions() throws Exception {
        Callable<Void> callable = () -> {
            final SecurityTestRemoteView denyAccessBean = InitialContext.doLookup("java:global/" + APP_NAME + "/" + MODULE_TWO_NAME + "/" + SecuredBeanTwo.class.getSimpleName() + "!" + SecurityTestRemoteView.class.getName());
            // first invoke on a method which has a specific role and that invocation should pass
            final String callerPrincipalName = denyAccessBean.methodWithSpecificRole();
            Assert.assertEquals("Unexpected caller prinicpal", "user1", callerPrincipalName);
            // now invoke on a method which doesn't have an explicit security configuration. The SecuredBeanTwo (deployment) is configured for
            // <missing-method-permissions-deny-access>true</missing-method-permissions-deny-access>
            // so the invocation on such a method is expected to fail
            try {
                denyAccessBean.methodWithNoRole();
                Assert.fail("Invocation on a method with no specific security configurations was expected to fail due to <missing-method-permissions-deny-access>true</missing-method-permissions-deny-access> configuration, but it didn't");
            } catch (EJBAccessException eae) {
                logger.trace("Got the expected exception", eae);
            }
            return null;
        };
        // establish an identity using the security domain associated with the beans in the JARs in the EAR deployment
        Util.switchIdentity("user1", "password1", callable, SecuredBeanOne.class.getClassLoader());
    }

    /**
     * Tests that methods without any explicit security permissions or any entry in the descriptor are denied
     *
     * @throws Exception
     */
    @Test
    public void testDenyAccessByDefaultForMethodsMissingPermissions() throws Exception {
        Callable<Void> callable = () -> {
            final SecurityTestRemoteView denyAccessBean = InitialContext.doLookup("java:global/" + APP_NAME + "/" + MODULE_THREE_NAME + "/" + SecuredBeanThree.class.getSimpleName() + "!" + SecurityTestRemoteView.class.getName());
            // first invoke on a method which has a specific role and that invocation should pass
            final String callerPrincipalName = denyAccessBean.methodWithSpecificRole();
            Assert.assertEquals("Unexpected caller prinicpal", "user1", callerPrincipalName);
            // now invoke on a method which doesn't have an explicit security configuration. The SecuredBeanTwo (deployment) is configured for
            // <missing-method-permissions-deny-access>true</missing-method-permissions-deny-access>
            // so the invocation on such a method is expected to fail
            try {
                denyAccessBean.methodWithNoRole();
                Assert.fail("Invocation on a method with no specific security configurations was expected to fail due to <missing-method-permissions-deny-access>true</missing-method-permissions-deny-access> configuration, but it didn't");
            } catch (EJBAccessException eae) {
                logger.trace("Got the expected exception", eae);
            }
            return null;
        };
        // establish an identity using the security domain associated with the beans in the JARs in the EAR deployment
        Util.switchIdentity("user1", "password1", callable, SecuredBeanOne.class.getClassLoader());
    }

    // Ensure the default security domain gets mapped to an appropriately configured Elytron security domain
    static class DefaultEjbSecurityDomainSetup extends EjbSecurityDomainSetup {

        @Override
        public void setup(final ManagementClient managementClient, final String containerId) throws Exception {
            if (System.getProperty("elytron") != null) {
                super.setup(managementClient, containerId);

                ModelNode address = getAddress();
                ModelNode operation = new ModelNode();
                operation.get(OP).set("write-attribute");
                operation.get(OP_ADDR).set(address);
                operation.get("name").set("default-security-domain");
                operation.get("value").set("ejb3-tests");
                ModelNode result = managementClient.getControllerClient().execute(operation);
                Assert.assertEquals(SUCCESS, result.get(OUTCOME).asString());
            }
        }

        @Override
        public void tearDown(final ManagementClient managementClient, final String containerId) {
            if (System.getProperty("elytron") != null) {
                super.tearDown(managementClient, containerId);

                ModelNode address = getAddress();
                ModelNode operation = new ModelNode();
                operation.get(OP).set("write-attribute");
                operation.get(OP_ADDR).set(address);
                operation.get("name").set("default-security-domain");
                operation.get("value").set("other");
                try {
                    ModelNode result = managementClient.getControllerClient().execute(operation);
                    Assert.assertEquals(SUCCESS, result.get(OUTCOME).asString());
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }
        }

        private static ModelNode getAddress() {
            ModelNode address = new ModelNode();
            address.add("subsystem", "ejb3");
            address.protect();
            return address;
        }
    }
}
