HelloWebfluxFnApplicationTests.java

/*
 *
 *  * Copyright 2002-2017 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 sample;

import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseCookie;
import org.springframework.http.server.reactive.HttpHandler;
import org.springframework.security.web.server.header.ContentTypeOptionsHttpHeadersWriter;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.reactive.server.ExchangeResult;
import org.springframework.test.web.reactive.server.WebTestClient;
import org.springframework.web.reactive.function.client.ExchangeFilterFunction;

import java.nio.charset.Charset;
import java.util.Base64;

import static org.springframework.security.test.web.reactive.server.SecurityExchangeMutators.withUser;
import static org.springframework.web.reactive.function.client.ExchangeFilterFunctions.basicAuthentication;

/**
 * @author Rob Winch
 * @since 5.0
 */
@RunWith(SpringRunner.class)
@ContextConfiguration(classes = HelloWebfluxFnApplication.class)
@ActiveProfiles("test")
public class HelloWebfluxFnApplicationTests {
	@Autowired
	HttpHandler handler;

	WebTestClient rest;

	@Before
	public void setup() {
		this.rest = WebTestClient.bindToHttpHandler(handler).build();
	}

	@Test
	public void basicRequired() throws Exception {
		this.rest
			.get()
			.uri("/users")
			.exchange()
			.expectStatus().isUnauthorized();
	}

	@Test
	public void basicWorks() throws Exception {
		this.rest
			.filter(robsCredentials())
			.get()
			.uri("/users")
			.exchange()
			.expectStatus().isOk()
			.expectBody().json("[{\"id\":null,\"username\":\"rob\",\"password\":\"rob\",\"firstname\":\"Rob\",\"lastname\":\"Winch\"},{\"id\":null,\"username\":\"admin\",\"password\":\"admin\",\"firstname\":\"Admin\",\"lastname\":\"User\"}]");
	}

	@Test
	public void basicWhenPasswordInvalid401() throws Exception {
		this.rest
			.filter(invalidPassword())
			.get()
			.uri("/users")
			.exchange()
			.expectStatus().isUnauthorized()
			.expectBody().isEmpty();
	}

	@Test
	public void authorizationAdmin403() throws Exception {
		this.rest
			.filter(robsCredentials())
			.get()
			.uri("/admin")
			.exchange()
			.expectStatus().isEqualTo(HttpStatus.FORBIDDEN)
			.expectBody().isEmpty();
	}

	@Test
	public void authorizationAdmin200() throws Exception {
		this.rest
			.filter(adminCredentials())
			.get()
			.uri("/admin")
			.exchange()
			.expectStatus().isOk();
	}

	@Test
	public void basicMissingUser401() throws Exception {
		this.rest
			.filter(basicAuthentication("missing-user", "password"))
			.get()
			.uri("/admin")
			.exchange()
			.expectStatus().isUnauthorized();
	}

	@Test
	public void basicInvalidPassword401() throws Exception {
		this.rest
			.filter(invalidPassword())
			.get()
			.uri("/admin")
			.exchange()
			.expectStatus().isUnauthorized();
	}

	@Test
	public void basicInvalidParts401() throws Exception {
		this.rest
			.get()
			.uri("/admin")
			.header("Authorization", "Basic " + base64Encode("no colon"))
			.exchange()
			.expectStatus().isUnauthorized();
	}

	@Test
	public void sessionWorks() throws Exception {
		ExchangeResult result = this.rest
			.filter(robsCredentials())
			.get()
			.uri("/users")
			.exchange()
			.returnResult(String.class);

		ResponseCookie session = result.getResponseCookies().getFirst("SESSION");

		this.rest
			.get()
			.uri("/users")
			.cookie(session.getName(), session.getValue())
			.exchange()
			.expectStatus().isOk();
	}

	@Ignore
	@Test
	public void mockSupport() throws Exception {
		this.rest
			.exchangeMutator( withUser() )
			.get()
			.uri("/users")
			.exchange()
			.expectStatus().isOk();

		this.rest
			.get()
			.uri("/users")
			.exchange()
			.expectStatus().isUnauthorized();
	}

	@Test
	public void principal() throws Exception {
		this.rest
			.filter(robsCredentials())
			.get()
			.uri("/principal")
			.exchange()
			.expectStatus().isOk()
			.expectBody().json("{\"username\" : \"rob\"}");
	}

	@Test
	public void headers() throws Exception {
		this.rest
			.filter(robsCredentials())
			.get()
			.uri("/principal")
			.exchange()
			.expectHeader().valueEquals(HttpHeaders.CACHE_CONTROL, "no-cache, no-store, max-age=0, must-revalidate")
			.expectHeader().valueEquals(HttpHeaders.EXPIRES, "0")
			.expectHeader().valueEquals(HttpHeaders.PRAGMA, "no-cache")
			.expectHeader().valueEquals(ContentTypeOptionsHttpHeadersWriter.X_CONTENT_OPTIONS, ContentTypeOptionsHttpHeadersWriter.NOSNIFF);
	}

	private ExchangeFilterFunction robsCredentials() {
		return basicAuthentication("rob","rob");
	}

	private ExchangeFilterFunction invalidPassword() {
		return basicAuthentication("rob","INVALID");
	}

	private ExchangeFilterFunction adminCredentials() {
		return basicAuthentication("admin","admin");
	}

	private String base64Encode(String value) {
		return Base64.getEncoder().encodeToString(value.getBytes(Charset.defaultCharset()));
	}
}