org.springframework.http.server.reactive.ReactorServerHttpRequest Maven / Gradle / Ivy
/*
* Copyright 2002-2018 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.http.server.reactive;
import java.net.InetSocketAddress;
import java.net.URI;
import java.net.URISyntaxException;
import javax.net.ssl.SSLSession;
import io.netty.handler.codec.http.HttpHeaderNames;
import io.netty.handler.codec.http.cookie.Cookie;
import io.netty.handler.ssl.SslHandler;
import reactor.core.publisher.Flux;
import reactor.netty.Connection;
import reactor.netty.http.server.HttpServerRequest;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.NettyDataBufferFactory;
import org.springframework.http.HttpCookie;
import org.springframework.http.HttpHeaders;
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}.
*
* @author Stephane Maldini
* @author Rossen Stoyanchev
* @since 5.0
*/
class ReactorServerHttpRequest extends AbstractServerHttpRequest {
private final HttpServerRequest request;
private final NettyDataBufferFactory bufferFactory;
public ReactorServerHttpRequest(HttpServerRequest request, NettyDataBufferFactory bufferFactory)
throws URISyntaxException {
super(initUri(request), "", initHeaders(request));
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).toString() + resolveRequestUri(request));
}
private static URI resolveBaseUrl(HttpServerRequest request) throws URISyntaxException {
String scheme = getScheme(request);
String header = request.requestHeaders().get(HttpHeaderNames.HOST);
if (header != null) {
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.substring(portIndex + 1)), 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();
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;
}
private static HttpHeaders initHeaders(HttpServerRequest channel) {
NettyHeadersAdapter headersMap = new NettyHeadersAdapter(channel.requestHeaders());
return new HttpHeaders(headersMap);
}
@Override
public String getMethodValue() {
return this.request.method().name();
}
@Override
protected MultiValueMap initCookies() {
MultiValueMap cookies = new LinkedMultiValueMap<>();
for (CharSequence name : this.request.cookies().keySet()) {
for (Cookie cookie : this.request.cookies().get(name)) {
HttpCookie httpCookie = new HttpCookie(name.toString(), cookie.value());
cookies.add(name.toString(), httpCookie);
}
}
return cookies;
}
@Override
public InetSocketAddress getRemoteAddress() {
return this.request.remoteAddress();
}
@Override
@Nullable
protected SslInfo initSslInfo() {
SslHandler sslHandler = ((Connection) this.request).channel().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().retain().map(this.bufferFactory::wrap);
}
@SuppressWarnings("unchecked")
@Override
public T getNativeRequest() {
return (T) this.request;
}
@Override
@Nullable
protected String initId() {
return this.request instanceof Connection ?
((Connection) this.request).channel().id().asShortText() : null;
}
}