StrictTransportSecurityHttpHeadersWriterTests.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 org.springframework.security.web.server.header;

import static org.assertj.core.api.Assertions.assertThat;

import java.time.Duration;
import java.util.Arrays;

import org.junit.Test;
import org.springframework.http.HttpHeaders;
import org.springframework.mock.http.server.reactive.MockServerHttpRequest;
import org.springframework.web.server.ServerWebExchange;

/**
 * @author Rob Winch
 * @since 5.0
 */
public class StrictTransportSecurityHttpHeadersWriterTests {
	StrictTransportSecurityHttpHeadersWriter hsts = new StrictTransportSecurityHttpHeadersWriter();

	ServerWebExchange exchange;

	@Test
	public void writeHttpHeadersWhenHttpsThenWrites() {
		exchange = MockServerHttpRequest.get("https://example.com/").toExchange();

		hsts.writeHttpHeaders(exchange);

		HttpHeaders headers = exchange.getResponse().getHeaders();
		assertThat(headers).hasSize(1);
		assertThat(headers).containsEntry(StrictTransportSecurityHttpHeadersWriter.STRICT_TRANSPORT_SECURITY,
				Arrays.asList("max-age=31536000 ; includeSubDomains"));
	}

	@Test
	public void writeHttpHeadersWhenCustomMaxAgeThenWrites() {
		Duration maxAge = Duration.ofDays(1);
		hsts.setMaxAge(maxAge);
		exchange = MockServerHttpRequest.get("https://example.com/").toExchange();

		hsts.writeHttpHeaders(exchange);

		HttpHeaders headers = exchange.getResponse().getHeaders();
		assertThat(headers).hasSize(1);
		assertThat(headers).containsEntry(StrictTransportSecurityHttpHeadersWriter.STRICT_TRANSPORT_SECURITY,
				Arrays.asList("max-age=" + maxAge.getSeconds() + " ; includeSubDomains"));
	}

	@Test
	public void writeHttpHeadersWhenCustomIncludeSubDomainsThenWrites() {
		hsts.setIncludeSubDomains(false);
		exchange = MockServerHttpRequest.get("https://example.com/").toExchange();

		hsts.writeHttpHeaders(exchange);

		HttpHeaders headers = exchange.getResponse().getHeaders();
		assertThat(headers).hasSize(1);
		assertThat(headers).containsEntry(StrictTransportSecurityHttpHeadersWriter.STRICT_TRANSPORT_SECURITY,
				Arrays.asList("max-age=31536000"));
	}

	@Test
	public void writeHttpHeadersWhenNullSchemeThenNoHeaders() {
		exchange = MockServerHttpRequest.get("/").toExchange();

		hsts.writeHttpHeaders(exchange);

		HttpHeaders headers = exchange.getResponse().getHeaders();
		assertThat(headers).isEmpty();
	}

	@Test
	public void writeHttpHeadersWhenHttpThenNoHeaders() {
		exchange = MockServerHttpRequest.get("http://example.com/").toExchange();

		hsts.writeHttpHeaders(exchange);

		HttpHeaders headers = exchange.getResponse().getHeaders();
		assertThat(headers).isEmpty();
	}
}