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/*-
 * ============LICENSE_START=======================================================
 * ONAP
 * ================================================================================
 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
 * Modifications Copyright (C) 2018 Samsung Electronics Co., Ltd.
 * ================================================================================
 * 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.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============LICENSE_END=========================================================
 */

package org.onap.policy.common.endpoints.http.server.test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Properties;

import javax.ws.rs.client.Entity;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
import org.onap.policy.common.endpoints.http.client.HttpClient;
import org.onap.policy.common.endpoints.http.server.HttpServletServer;
import org.onap.policy.common.endpoints.http.server.internal.JettyJerseyServer;
import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
import org.onap.policy.common.utils.network.NetworkUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HttpClientTest {
    private static final Logger logger = LoggerFactory.getLogger(HttpClientTest.class);

    private static final HashMap<String, String> savedValuesMap = new HashMap<>();

    /**
     * Setup before class method.
     *
     * @throws InterruptedException can be interrupted
     * @throws IOException can have an IO exception
     */
    @BeforeClass
    public static void setUp() throws InterruptedException, IOException {
        logger.info("-- setup() --");

        /* echo server - http + no auth */

        final HttpServletServer echoServerNoAuth =
                HttpServletServer.factory.build("echo", "localhost", 6666, "/", false, true);
        echoServerNoAuth.addServletPackage("/*", HttpClientTest.class.getPackage().getName());
        echoServerNoAuth.waitedStart(5000);

        if (!NetworkUtil.isTcpPortOpen("localhost", echoServerNoAuth.getPort(), 5, 10000L)) {
            throw new IllegalStateException("cannot connect to port " + echoServerNoAuth.getPort());
        }

        String keyStoreSystemProperty = System.getProperty(JettyJerseyServer.SYSTEM_KEYSTORE_PROPERTY_NAME);
        if (keyStoreSystemProperty != null) {
            savedValuesMap.put(JettyJerseyServer.SYSTEM_KEYSTORE_PROPERTY_NAME, keyStoreSystemProperty);
        }

        String keyStorePasswordSystemProperty =
                System.getProperty(JettyJerseyServer.SYSTEM_KEYSTORE_PASSWORD_PROPERTY_NAME);
        if (keyStorePasswordSystemProperty != null) {
            savedValuesMap.put(JettyJerseyServer.SYSTEM_KEYSTORE_PASSWORD_PROPERTY_NAME,
                    keyStorePasswordSystemProperty);
        }

        String trustStoreSystemProperty = System.getProperty(JettyJerseyServer.SYSTEM_TRUSTSTORE_PROPERTY_NAME);
        if (trustStoreSystemProperty != null) {
            savedValuesMap.put(JettyJerseyServer.SYSTEM_TRUSTSTORE_PROPERTY_NAME, trustStoreSystemProperty);
        }

        String trustStorePasswordSystemProperty =
                System.getProperty(JettyJerseyServer.SYSTEM_TRUSTSTORE_PASSWORD_PROPERTY_NAME);
        if (trustStorePasswordSystemProperty != null) {
            savedValuesMap.put(JettyJerseyServer.SYSTEM_TRUSTSTORE_PASSWORD_PROPERTY_NAME,
                    trustStorePasswordSystemProperty);
        }

        System.setProperty(JettyJerseyServer.SYSTEM_KEYSTORE_PROPERTY_NAME, "src/test/resources/keystore-test");
        System.setProperty(JettyJerseyServer.SYSTEM_KEYSTORE_PASSWORD_PROPERTY_NAME, "kstest");

        System.setProperty(JettyJerseyServer.SYSTEM_TRUSTSTORE_PROPERTY_NAME, "src/test/resources/keystore-test");
        System.setProperty(JettyJerseyServer.SYSTEM_TRUSTSTORE_PASSWORD_PROPERTY_NAME, "kstest");

        /* echo server - https + basic auth */

        final HttpServletServer echoServerAuth =
                HttpServletServer.factory.build("echo", true, "localhost", 6667, "/", false, true);
        echoServerAuth.setBasicAuthentication("x", "y", null);
        echoServerAuth.addServletPackage("/*", HttpClientTest.class.getPackage().getName());
        echoServerAuth.addFilterClass("/*", TestFilter.class.getCanonicalName());
        echoServerAuth.waitedStart(5000);

        if (!NetworkUtil.isTcpPortOpen("localhost", echoServerAuth.getPort(), 5, 10000L)) {
            throw new IllegalStateException("cannot connect to port " + echoServerAuth.getPort());
        }
    }

    /**
     * After the class is created method.
     */
    @AfterClass
    public static void tearDown() {
        logger.info("-- tearDown() --");

        HttpServletServer.factory.destroy();
        HttpClient.factory.destroy();

        if (savedValuesMap.containsKey(JettyJerseyServer.SYSTEM_KEYSTORE_PROPERTY_NAME)) {
            System.setProperty(JettyJerseyServer.SYSTEM_KEYSTORE_PROPERTY_NAME,
                    savedValuesMap.get(JettyJerseyServer.SYSTEM_KEYSTORE_PROPERTY_NAME));
            savedValuesMap.remove(JettyJerseyServer.SYSTEM_KEYSTORE_PROPERTY_NAME);
        } else {
            System.clearProperty(JettyJerseyServer.SYSTEM_KEYSTORE_PROPERTY_NAME);
        }

        if (savedValuesMap.containsKey(JettyJerseyServer.SYSTEM_KEYSTORE_PASSWORD_PROPERTY_NAME)) {
            System.setProperty(JettyJerseyServer.SYSTEM_KEYSTORE_PASSWORD_PROPERTY_NAME,
                    savedValuesMap.get(JettyJerseyServer.SYSTEM_KEYSTORE_PASSWORD_PROPERTY_NAME));
            savedValuesMap.remove(JettyJerseyServer.SYSTEM_KEYSTORE_PASSWORD_PROPERTY_NAME);
        } else {
            System.clearProperty(JettyJerseyServer.SYSTEM_KEYSTORE_PASSWORD_PROPERTY_NAME);
        }

        if (savedValuesMap.containsKey(JettyJerseyServer.SYSTEM_TRUSTSTORE_PROPERTY_NAME)) {
            System.setProperty(JettyJerseyServer.SYSTEM_TRUSTSTORE_PROPERTY_NAME,
                    savedValuesMap.get(JettyJerseyServer.SYSTEM_TRUSTSTORE_PROPERTY_NAME));
            savedValuesMap.remove(JettyJerseyServer.SYSTEM_TRUSTSTORE_PROPERTY_NAME);
        } else {
            System.clearProperty(JettyJerseyServer.SYSTEM_TRUSTSTORE_PROPERTY_NAME);
        }

        if (savedValuesMap.containsKey(JettyJerseyServer.SYSTEM_TRUSTSTORE_PASSWORD_PROPERTY_NAME)) {
            System.setProperty(JettyJerseyServer.SYSTEM_TRUSTSTORE_PASSWORD_PROPERTY_NAME,
                    savedValuesMap.get(JettyJerseyServer.SYSTEM_TRUSTSTORE_PASSWORD_PROPERTY_NAME));
            savedValuesMap.remove(JettyJerseyServer.SYSTEM_TRUSTSTORE_PASSWORD_PROPERTY_NAME);
        } else {
            System.clearProperty(JettyJerseyServer.SYSTEM_TRUSTSTORE_PASSWORD_PROPERTY_NAME);
        }


    }

    @Test
    public void testHttpGetNoAuthClient() throws Exception {
        logger.info("-- testHttpNoAuthClient() --");

        final HttpClient client = HttpClient.factory.build(BusTopicParams.builder().clientName("testHttpNoAuthClient")
                .useHttps(false).allowSelfSignedCerts(false).hostname("localhost").port(6666).basePath("junit/echo")
                .userName(null).password(null).managed(true).build());
        final Response response = client.get("hello");
        final String body = HttpClient.getBody(response, String.class);

        assertTrue(response.getStatus() == 200);
        assertTrue(body.equals("hello"));
    }

    @Test
    public void testHttpPutNoAuthClient() throws Exception {
        logger.info("-- testHttpNoAuthClient() --");

        final HttpClient client = HttpClient.factory.build(BusTopicParams.builder().clientName("testHttpNoAuthClient")
                .useHttps(false).allowSelfSignedCerts(false).hostname("localhost").port(6666).basePath("junit/echo")
                .userName(null).password(null).managed(true).build());

        Entity<MyEntity> entity = Entity.entity(new MyEntity("myValue"), MediaType.APPLICATION_JSON);
        final Response response = client.put("hello", entity, Collections.emptyMap());
        final String body = HttpClient.getBody(response, String.class);

        assertTrue(response.getStatus() == 200);
        assertTrue(body.equals("hello:{myParameter=myValue}"));
    }

    @Test
    public void testHttpGetAuthClient() throws Exception {
        logger.info("-- testHttpAuthClient() --");

        final HttpClient client = HttpClient.factory.build(BusTopicParams.builder().clientName("testHttpAuthClient")
                .useHttps(true).allowSelfSignedCerts(true).hostname("localhost").port(6667).basePath("junit/echo")
                .userName("x").password("y").managed(true).build());

        final Response response = client.get("hello");
        final String body = HttpClient.getBody(response, String.class);

        assertTrue(response.getStatus() == 200);
        assertTrue(body.equals("hello"));
    }

    @Test
    public void testHttpPutAuthClient() throws Exception {
        logger.info("-- testHttpAuthClient() --");

        final HttpClient client = HttpClient.factory.build(BusTopicParams.builder().clientName("testHttpAuthClient")
                .useHttps(true).allowSelfSignedCerts(true).hostname("localhost").port(6667).basePath("junit/echo")
                .userName("x").password("y").managed(true).build());

        Entity<MyEntity> entity = Entity.entity(new MyEntity("myValue"), MediaType.APPLICATION_JSON);
        final Response response = client.put("hello", entity, Collections.emptyMap());
        final String body = HttpClient.getBody(response, String.class);

        assertTrue(response.getStatus() == 200);
        assertTrue(body.equals("hello:{myParameter=myValue}"));
    }

    @Test
    public void testHttpAuthClient401() throws Exception {
        logger.info("-- testHttpAuthClient401() --");

        final HttpClient client = HttpClient.factory.build(BusTopicParams.builder().clientName("testHttpAuthClient401")
                .useHttps(true).allowSelfSignedCerts(true).hostname("localhost").port(6667).basePath("junit/echo")
                .userName(null).password(null).managed(true).build());
        final Response response = client.get("hello");
        assertEquals(new Integer(response.getStatus()).toString(), response.getStatus(), 401);
    }

    @Test
    public void testHttpAuthClientProps() throws Exception {
        logger.info("-- testHttpAuthClientProps() --");

        final Properties httpProperties = new Properties();

        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES, "PAP,PDP");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX, "localhost");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX, "7777");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX, "testpap");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX, "alpha123");
        httpProperties.setProperty(
                PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PAP"
                        + PolicyEndPointProperties.PROPERTY_HTTP_REST_CLASSES_SUFFIX,
                RestMockHealthCheck.class.getName());
        httpProperties.setProperty(
            PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_FILTER_CLASSES_SUFFIX,
            TestFilter.class.getName());
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, "true");

        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX, "localhost");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX, "7778");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX, "testpdp");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX, "alpha123");
        httpProperties.setProperty(
                PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + "PDP"
                        + PolicyEndPointProperties.PROPERTY_HTTP_REST_CLASSES_SUFFIX,
                RestMockHealthCheck.class.getName());
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, "true");

        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES, "PAP,PDP");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX, "localhost");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX, "7777");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_URL_SUFFIX, "pap/test");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_HTTPS_SUFFIX, "false");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX, "testpap");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX, "alpha123");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PAP"
                + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, "true");

        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX, "localhost");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX, "7778");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_URL_SUFFIX, "pdp");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_HTTPS_SUFFIX, "false");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX, "testpdp");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX, "alpha123");
        httpProperties.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_CLIENT_SERVICES + "." + "PDP"
                + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, "true");

        final List<HttpServletServer> servers = HttpServletServer.factory.build(httpProperties);
        assertTrue(servers.size() == 2);

        final List<HttpClient> clients = HttpClient.factory.build(httpProperties);
        assertTrue(clients.size() == 2);

        for (final HttpServletServer server : servers) {
            server.waitedStart(10000);
        }

        final HttpClient clientPAP = HttpClient.factory.get("PAP");
        final Response response = clientPAP.get();
        assertTrue(response.getStatus() == 200);

        final HttpClient clientPDP = HttpClient.factory.get("PDP");
        final Response response2 = clientPDP.get("test");
        assertTrue(response2.getStatus() == 500);
    }

    class MyEntity {

        private String myParameter;

        public MyEntity(final String myParameter) {
            this.myParameter = myParameter;
        }

        public void setMyParameter(final String myParameter) {
            this.myParameter = myParameter;
        }

        public String getMyParameter() {
            return myParameter;
        }

    }

}