/*
* Copyright 2013-2015 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;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.actuate.trace.InMemoryTraceRepository;
import org.springframework.boot.actuate.trace.TraceRepository;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.embedded.LocalServerPort;
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.RibbonClient;
import org.springframework.cloud.netflix.ribbon.RibbonClients;
import org.springframework.cloud.netflix.ribbon.StaticServerList;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.netflix.loadbalancer.Server;
import com.netflix.loadbalancer.ServerList;
import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import lombok.extern.slf4j.Slf4j;
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(
classes = FormZuulServletProxyApplication.class,
webEnvironment = WebEnvironment.RANDOM_PORT,
value = "zuul.routes.simple:/simple/**")
@DirtiesContext
public class FormZuulServletProxyApplicationTests {
@Autowired
private TestRestTemplate testRestTemplate;
@Before
public void setTestRequestContext() {
RequestContext context = new RequestContext();
RequestContext.testSetCurrentContext(context);
}
@Test
public void postWithForm() {
MultiValueMap<String, String> form = new LinkedMultiValueMap<>();
form.set("foo", "bar");
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
ResponseEntity<String> result = testRestTemplate.exchange(
"/zuul/simple/form", HttpMethod.POST,
new HttpEntity<>(form, headers), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Posted! {foo=[bar]}", result.getBody());
}
@Test
public void postWithMultipartForm() {
MultiValueMap<String, String> form = new LinkedMultiValueMap<>();
form.set("foo", "bar");
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.MULTIPART_FORM_DATA);
ResponseEntity<String> result = testRestTemplate.exchange(
"/zuul/simple/form", HttpMethod.POST,
new HttpEntity<>(form, headers), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Posted! {foo=[bar]}", result.getBody());
}
@Test
public void postWithMultipartFile() {
MultiValueMap<String, Object> form = new LinkedMultiValueMap<>();
HttpHeaders part = new HttpHeaders();
part.setContentType(MediaType.TEXT_PLAIN);
part.setContentDispositionFormData("file", "foo.txt");
form.set("foo", new HttpEntity<>("bar".getBytes(), part));
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.MULTIPART_FORM_DATA);
headers.set("Transfer-Encoding", "chunked");
headers.setContentLength(-1);
ResponseEntity<String> result = testRestTemplate.exchange(
"/zuul/simple/file", HttpMethod.POST,
new HttpEntity<>(form, headers), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Posted! bar", result.getBody());
}
@Test
public void postWithUTF8Form() {
MultiValueMap<String, String> form = new LinkedMultiValueMap<>();
form.set("foo", "bar");
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.valueOf(
MediaType.APPLICATION_FORM_URLENCODED_VALUE + "; charset=UTF-8"));
ResponseEntity<String> result = testRestTemplate.exchange(
"/zuul/simple/form", HttpMethod.POST,
new HttpEntity<>(form, headers), String.class);
assertEquals(HttpStatus.OK, result.getStatusCode());
assertEquals("Posted! {foo=[bar]}", result.getBody());
}
}
// Don't use @SpringBootApplication because we don't want to component scan
@Configuration
@EnableAutoConfiguration
@RestController
@EnableZuulProxy
@RibbonClients(@RibbonClient(name = "simple", configuration = ServletFormRibbonClientConfiguration.class))
@Slf4j
class FormZuulServletProxyApplication {
@RequestMapping(value = "/form", method = RequestMethod.POST)
public String accept(@RequestParam MultiValueMap<String, String> form)
throws IOException {
return "Posted! " + form;
}
// TODO: Why does this not work if you add @RequestParam as above?
@RequestMapping(value = "/file", method = RequestMethod.POST)
public String file(@RequestParam(required = false) MultipartFile file)
throws IOException {
byte[] bytes = new byte[0];
if (file != null) {
if (file.getSize() > 1024) {
bytes = new byte[1024];
InputStream inputStream = file.getInputStream();
inputStream.read(bytes);
byte[] buffer = new byte[1024 * 1024 * 10];
while (inputStream.read(buffer) >= 0) {
log.info("Read more bytes");
}
} else {
bytes = file.getBytes();
}
}
return "Posted! " + new String(bytes);
}
@Bean
public ZuulFilter sampleFilter() {
return new ZuulFilter() {
@Override
public String filterType() {
return "pre";
}
@Override
public boolean shouldFilter() {
return true;
}
@Override
public Object run() {
return null;
}
@Override
public int filterOrder() {
return 0;
}
};
}
@Bean
public TraceRepository traceRepository() {
return new InMemoryTraceRepository() {
@Override
public void add(Map<String, Object> map) {
if (map.containsKey("body")) {
map.get("body");
}
super.add(map);
}
};
}
public static void main(String[] args) {
new SpringApplicationBuilder(FormZuulProxyApplication.class)
.properties("zuul.routes.simple:/zuul/simple/**",
"zuul.routes.direct.url:http://localhost:9999",
"zuul.routes.direct.path:/zuul/direct/**",
"multipart.maxFileSize:4096MB",
"multipart.maxRequestSize:4096MB")
.run(args);
}
}
// Load balancer with fixed server list for "simple" pointing to localhost
@Configuration
class ServletFormRibbonClientConfiguration {
@LocalServerPort
private int port;
@Bean
public ServerList<Server> ribbonServerList() {
return new StaticServerList<>(new Server("localhost", this.port));
}
}