org.springframework.http.server.reactive.ReactorNetty2ServerHttpRequest Maven / Gradle / Ivy
/*
* Copyright 2002-2022 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.server.reactive;
import java.net.InetSocketAddress;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.concurrent.atomic.AtomicLong;
import javax.net.ssl.SSLSession;
import io.netty5.channel.Channel;
import io.netty5.handler.codec.http.HttpHeaderNames;
import io.netty5.handler.codec.http.headers.HttpCookiePair;
import io.netty5.handler.ssl.SslHandler;
import org.apache.commons.logging.Log;
import reactor.core.publisher.Flux;
import reactor.netty5.ChannelOperationsId;
import reactor.netty5.Connection;
import reactor.netty5.http.server.HttpServerRequest;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.Netty5DataBufferFactory;
import org.springframework.http.HttpCookie;
import org.springframework.http.HttpLogging;
import org.springframework.http.HttpMethod;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
/**
* Adapt {@link ServerHttpRequest} to the Reactor {@link HttpServerRequest}.
*
* This class is based on {@link ReactorServerHttpRequest}.
*
* @author Violeta Georgieva
* @since 6.0
*/
class ReactorNetty2ServerHttpRequest extends AbstractServerHttpRequest {
private static final Log logger = HttpLogging.forLogName(ReactorNetty2ServerHttpRequest.class);
private static final AtomicLong logPrefixIndex = new AtomicLong();
private final HttpServerRequest request;
private final Netty5DataBufferFactory bufferFactory;
public ReactorNetty2ServerHttpRequest(HttpServerRequest request, Netty5DataBufferFactory bufferFactory)
throws URISyntaxException {
super(initUri(request), "", new Netty5HeadersAdapter(request.requestHeaders()));
Assert.notNull(bufferFactory, "DataBufferFactory must not be null");
this.request = request;
this.bufferFactory = bufferFactory;
}
private static URI initUri(HttpServerRequest request) throws URISyntaxException {
Assert.notNull(request, "HttpServerRequest must not be null");
return new URI(resolveBaseUrl(request) + resolveRequestUri(request));
}
private static URI resolveBaseUrl(HttpServerRequest request) throws URISyntaxException {
String scheme = getScheme(request);
CharSequence charSequence = request.requestHeaders().get(HttpHeaderNames.HOST);
if (charSequence != null) {
String header = charSequence.toString();
final int portIndex;
if (header.startsWith("[")) {
portIndex = header.indexOf(':', header.indexOf(']'));
}
else {
portIndex = header.indexOf(':');
}
if (portIndex != -1) {
try {
return new URI(scheme, null, header.substring(0, portIndex),
Integer.parseInt(header, portIndex + 1, header.length(), 10), null, null, null);
}
catch (NumberFormatException ex) {
throw new URISyntaxException(header, "Unable to parse port", portIndex);
}
}
else {
return new URI(scheme, header, null, null);
}
}
else {
InetSocketAddress localAddress = request.hostAddress();
Assert.state(localAddress != null, "No host address available");
return new URI(scheme, null, localAddress.getHostString(),
localAddress.getPort(), null, null, null);
}
}
private static String getScheme(HttpServerRequest request) {
return request.scheme();
}
private static String resolveRequestUri(HttpServerRequest request) {
String uri = request.uri();
for (int i = 0; i < uri.length(); i++) {
char c = uri.charAt(i);
if (c == '/' || c == '?' || c == '#') {
break;
}
if (c == ':' && (i + 2 < uri.length())) {
if (uri.charAt(i + 1) == '/' && uri.charAt(i + 2) == '/') {
for (int j = i + 3; j < uri.length(); j++) {
c = uri.charAt(j);
if (c == '/' || c == '?' || c == '#') {
return uri.substring(j);
}
}
return "";
}
}
}
return uri;
}
@Override
public HttpMethod getMethod() {
return HttpMethod.valueOf(this.request.method().name());
}
@Override
protected MultiValueMap initCookies() {
MultiValueMap cookies = new LinkedMultiValueMap<>();
for (CharSequence name : this.request.cookies().keySet()) {
for (HttpCookiePair cookie : this.request.cookies().get(name)) {
CharSequence cookieValue = cookie.value();
HttpCookie httpCookie = new HttpCookie(name.toString(), cookieValue != null ? cookieValue.toString() : null);
cookies.add(name.toString(), httpCookie);
}
}
return cookies;
}
@Override
@Nullable
public InetSocketAddress getLocalAddress() {
return this.request.hostAddress();
}
@Override
@Nullable
public InetSocketAddress getRemoteAddress() {
return this.request.remoteAddress();
}
@Override
@Nullable
protected SslInfo initSslInfo() {
Channel channel = ((Connection) this.request).channel();
SslHandler sslHandler = channel.pipeline().get(SslHandler.class);
if (sslHandler == null && channel.parent() != null) { // HTTP/2
sslHandler = channel.parent().pipeline().get(SslHandler.class);
}
if (sslHandler != null) {
SSLSession session = sslHandler.engine().getSession();
return new DefaultSslInfo(session);
}
return null;
}
@Override
public Flux getBody() {
return this.request.receive().transferOwnership().map(this.bufferFactory::wrap);
}
@SuppressWarnings("unchecked")
@Override
public T getNativeRequest() {
return (T) this.request;
}
@Override
@Nullable
protected String initId() {
if (this.request instanceof Connection connection) {
return connection.channel().id().asShortText() +
"-" + logPrefixIndex.incrementAndGet();
}
return null;
}
@Override
protected String initLogPrefix() {
String id = null;
if (this.request instanceof ChannelOperationsId operationsId) {
id = (logger.isDebugEnabled() ? operationsId.asLongText() : operationsId.asShortText());
}
if (id != null) {
return id;
}
if (this.request instanceof Connection connection) {
return connection.channel().id().asShortText() +
"-" + logPrefixIndex.incrementAndGet();
}
return getId();
}
}