org.springframework.http.client.reactive.JdkClientHttpResponse Maven / Gradle / Ivy
/*
* Copyright 2002-2024 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
*
* https://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.http.client.reactive;
import java.net.HttpCookie;
import java.net.http.HttpClient;
import java.net.http.HttpResponse;
import java.nio.ByteBuffer;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.concurrent.Flow;
import java.util.function.Function;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import reactor.adapter.JdkFlowAdapter;
import reactor.core.publisher.Flux;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.core.io.buffer.DataBufferUtils;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatusCode;
import org.springframework.http.ResponseCookie;
import org.springframework.lang.Nullable;
import org.springframework.util.CollectionUtils;
import org.springframework.util.LinkedCaseInsensitiveMap;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
/**
* {@link ClientHttpResponse} for the Java {@link HttpClient}.
*
* @author Julien Eyraud
* @author Rossen Stoyanchev
* @since 6.0
*/
class JdkClientHttpResponse extends AbstractClientHttpResponse {
private static final Pattern SAME_SITE_PATTERN = Pattern.compile("(?i).*SameSite=(Strict|Lax|None).*");
public JdkClientHttpResponse(HttpResponse>> response,
DataBufferFactory bufferFactory) {
super(HttpStatusCode.valueOf(response.statusCode()),
adaptHeaders(response),
adaptCookies(response),
adaptBody(response, bufferFactory)
);
}
private static HttpHeaders adaptHeaders(HttpResponse>> response) {
Map> rawHeaders = response.headers().map();
Map> map = new LinkedCaseInsensitiveMap<>(rawHeaders.size(), Locale.ENGLISH);
MultiValueMap multiValueMap = CollectionUtils.toMultiValueMap(map);
multiValueMap.putAll(rawHeaders);
return HttpHeaders.readOnlyHttpHeaders(multiValueMap);
}
private static MultiValueMap adaptCookies(HttpResponse>> response) {
return response.headers().allValues(HttpHeaders.SET_COOKIE).stream()
.flatMap(header -> {
Matcher matcher = SAME_SITE_PATTERN.matcher(header);
String sameSite = (matcher.matches() ? matcher.group(1) : null);
return HttpCookie.parse(header).stream().map(cookie -> toResponseCookie(cookie, sameSite));
})
.collect(LinkedMultiValueMap::new,
(cookies, cookie) -> cookies.add(cookie.getName(), cookie),
LinkedMultiValueMap::addAll);
}
private static ResponseCookie toResponseCookie(HttpCookie cookie, @Nullable String sameSite) {
return ResponseCookie.from(cookie.getName(), cookie.getValue())
.domain(cookie.getDomain())
.httpOnly(cookie.isHttpOnly())
.maxAge(cookie.getMaxAge())
.path(cookie.getPath())
.secure(cookie.getSecure())
.sameSite(sameSite)
.build();
}
private static Flux adaptBody(HttpResponse>> response, DataBufferFactory bufferFactory) {
return JdkFlowAdapter.flowPublisherToFlux(response.body())
.flatMapIterable(Function.identity())
.map(bufferFactory::wrap)
.doOnDiscard(DataBuffer.class, DataBufferUtils::release)
.cache(0);
}
}