/*
* Copyright 2013-2016 the original author or authors.
*
* 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.
*
*/
package org.springframework.cloud.netflix.zuul.filters.route.apache;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.springframework.http.HttpHeaders.SET_COOKIE;
import java.util.Collections;
import java.util.Set;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.web.ErrorAttributes;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.cloud.netflix.ribbon.DefaultServerIntrospector;
import org.springframework.cloud.netflix.ribbon.RibbonClient;
import org.springframework.cloud.netflix.ribbon.RibbonClients;
import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
import org.springframework.cloud.netflix.ribbon.StaticServerList;
import org.springframework.cloud.netflix.ribbon.apache.RibbonLoadBalancingHttpClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
import org.springframework.cloud.netflix.zuul.filters.ZuulProperties;
import org.springframework.cloud.netflix.zuul.filters.route.RibbonCommandFactory;
import org.springframework.cloud.netflix.zuul.filters.route.ZuulFallbackProvider;
import org.springframework.cloud.netflix.zuul.filters.route.support.ZuulProxyTestBase;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.util.WebUtils;
import com.netflix.client.RetryHandler;
import com.netflix.client.config.IClientConfig;
import com.netflix.loadbalancer.ILoadBalancer;
import com.netflix.loadbalancer.Server;
import com.netflix.loadbalancer.ServerList;
/**
* @author Spencer Gibb
*/
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = HttpClientRibbonCommandIntegrationTests.TestConfig.class, webEnvironment = WebEnvironment.RANDOM_PORT, value = {
"zuul.routes.other: /test/**=http://localhost:7777/local",
"zuul.routes.another: /another/twolevel/**", "zuul.routes.simple: /simple/**",
"zuul.routes.singleton: /singleton/**",
"zuul.routes.singleton.sensitiveHeaders: " })
@DirtiesContext
public class HttpClientRibbonCommandIntegrationTests extends ZuulProxyTestBase {
@Before
public void init() {
super.setTestRequestcontext();
}
@Test
public void patchOnSelfViaRibbonRoutingFilter() {
ResponseEntity<String> result = new TestRestTemplate().exchange(
"http://localhost:" + this.port + "/simple/local/1", HttpMethod.PATCH,
new HttpEntity<>("TestPatch"), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Patched 1!", result.getBody());
}
@Test
public void postOnSelfViaRibbonRoutingFilter() {
ResponseEntity<String> result = new TestRestTemplate().exchange(
"http://localhost:" + this.port + "/simple/local/1", HttpMethod.POST,
new HttpEntity<>("TestPost"), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Posted 1!", result.getBody());
}
@Test
public void deleteOnSelfViaRibbonRoutingFilter() {
ResponseEntity<String> result = new TestRestTemplate().exchange(
"http://localhost:" + this.port + "/simple/local/1", HttpMethod.DELETE,
new HttpEntity<>((Void) null), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Deleted 1!", result.getBody());
}
@Test
public void ribbonLoadBalancingHttpClientCookiePolicy() {
ResponseEntity<String> result = new TestRestTemplate().exchange(
"http://localhost:" + this.port + "/simple/downstream_cookie",
HttpMethod.POST, new HttpEntity<>((Void) null), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Cookie 434354454!", result.getBody());
assertNull(result.getHeaders().getFirst(SET_COOKIE));
// if new instance of RibbonLoadBalancingHttpClient is getting created every time
// and HttpClient is not reused then there are no concerns for the shared cookie
// storage
// but since https://github.com/spring-cloud/spring-cloud-netflix/issues/1150 is
// on the way a
result = new TestRestTemplate().exchange(
"http://localhost:" + this.port + "/singleton/downstream_cookie",
HttpMethod.POST, new HttpEntity<>((Void) null), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Cookie 434354454!", result.getBody());
assertEquals("jsessionid=434354454", result.getHeaders().getFirst(SET_COOKIE));
result = new TestRestTemplate().exchange(
"http://localhost:" + this.port + "/singleton/downstream_cookie",
HttpMethod.GET, new HttpEntity<>((Void) null), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Cookie null!", result.getBody());
}
@Test
public void ribbonCommandFactoryOverridden() {
assertTrue("ribbonCommandFactory not a HttpClientRibbonCommandFactory",
this.ribbonCommandFactory instanceof HttpClientRibbonCommandFactory);
}
// Don't use @SpringBootApplication because we don't want to component scan
@Configuration
@EnableAutoConfiguration
@RestController
@EnableZuulProxy
@RibbonClients({
@RibbonClient(name = "simple", configuration = ZuulProxyTestBase.SimpleRibbonClientConfiguration.class),
@RibbonClient(name = "another", configuration = ZuulProxyTestBase.AnotherRibbonClientConfiguration.class),
@RibbonClient(name = "singleton", configuration = SingletonRibbonClientConfiguration.class) })
static class TestConfig extends ZuulProxyTestBase.AbstractZuulProxyApplication {
@Autowired(required = false)
private Set<ZuulFallbackProvider> zuulFallbackProviders = Collections.emptySet();
@RequestMapping(value = "/local/{id}", method = RequestMethod.PATCH)
public String patch(@PathVariable final String id,
@RequestBody final String body) {
return "Patched " + id + "!";
}
@RequestMapping(value = "/downstream_cookie", method = RequestMethod.POST)
public String setDownstreamCookie(HttpServletResponse response) {
response.addCookie(new Cookie("jsessionid", "434354454"));
return "Cookie 434354454!";
}
@RequestMapping(value = "/downstream_cookie", method = RequestMethod.GET)
public String readDownstreamCookie(HttpServletRequest request) {
final Cookie cookie = WebUtils.getCookie(request, "jsessionid");
return "Cookie " + cookie + "!";
}
@Bean
public RibbonCommandFactory<?> ribbonCommandFactory(
final SpringClientFactory clientFactory) {
return new HttpClientRibbonCommandFactory(clientFactory, new ZuulProperties(),
zuulFallbackProviders);
}
@Bean
public ZuulProxyTestBase.MyErrorController myErrorController(
ErrorAttributes errorAttributes) {
return new ZuulProxyTestBase.MyErrorController(errorAttributes);
}
}
// Load balancer with fixed server list and defined ribbon rest client
@Configuration
public static class SingletonRibbonClientConfiguration {
@Value("${local.server.port}")
private int port;
@Bean
public ServerList<Server> ribbonServerList() {
return new StaticServerList<>(new Server("localhost", this.port));
}
@Bean
public RibbonLoadBalancingHttpClient ribbonClient(IClientConfig config,
ILoadBalancer loadBalancer, RetryHandler retryHandler) {
final RibbonLoadBalancingHttpClient client = new RibbonLoadBalancingHttpClient(config,
new DefaultServerIntrospector());
client.setLoadBalancer(loadBalancer);
client.setRetryHandler(retryHandler);
return client;
}
}
}