org.springframework.http.client.reactive.HttpComponentsClientHttpResponse Maven / Gradle / Ivy
/*
* Copyright 2002-2020 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.nio.ByteBuffer;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.hc.client5.http.cookie.Cookie;
import org.apache.hc.client5.http.protocol.HttpClientContext;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.Message;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatusCode;
import org.springframework.http.ResponseCookie;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
/**
* {@link ClientHttpResponse} implementation for the Apache HttpComponents HttpClient 5.x.
*
* @author Martin Tarjányi
* @author Arjen Poutsma
* @since 5.3
* @see Apache HttpComponents
*/
class HttpComponentsClientHttpResponse implements ClientHttpResponse {
private final DataBufferFactory dataBufferFactory;
private final Message> message;
private final HttpHeaders headers;
private final HttpClientContext context;
private final AtomicBoolean rejectSubscribers = new AtomicBoolean();
public HttpComponentsClientHttpResponse(DataBufferFactory dataBufferFactory,
Message> message, HttpClientContext context) {
this.dataBufferFactory = dataBufferFactory;
this.message = message;
this.context = context;
MultiValueMap adapter = new HttpComponentsHeadersAdapter(message.getHead());
this.headers = HttpHeaders.readOnlyHttpHeaders(adapter);
}
@Override
public HttpStatusCode getStatusCode() {
return HttpStatusCode.valueOf(this.message.getHead().getCode());
}
@Override
public MultiValueMap getCookies() {
LinkedMultiValueMap result = new LinkedMultiValueMap<>();
this.context.getCookieStore().getCookies().forEach(cookie ->
result.add(cookie.getName(),
ResponseCookie.fromClientResponse(cookie.getName(), cookie.getValue())
.domain(cookie.getDomain())
.path(cookie.getPath())
.maxAge(getMaxAgeSeconds(cookie))
.secure(cookie.isSecure())
.httpOnly(cookie.containsAttribute("httponly"))
.sameSite(cookie.getAttribute("samesite"))
.build()));
return result;
}
private long getMaxAgeSeconds(Cookie cookie) {
String maxAgeAttribute = cookie.getAttribute(Cookie.MAX_AGE_ATTR);
return (maxAgeAttribute != null ? Long.parseLong(maxAgeAttribute) : -1);
}
@Override
public Flux getBody() {
return Flux.from(this.message.getBody())
.doOnSubscribe(s -> {
if (!this.rejectSubscribers.compareAndSet(false, true)) {
throw new IllegalStateException("The client response body can only be consumed once.");
}
})
.map(this.dataBufferFactory::wrap);
}
@Override
public HttpHeaders getHeaders() {
return this.headers;
}
}