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Set (and override) reserved websocket handshake response headers after custom to avoid duplication (#10319)

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Motivation:
Currently we passing custom websocket handshaker response headers to a `WebSocketServerHandshaker` but they can contain a reserved headers (e.g. Connection, Upgrade, Sec-Websocket-Accept) what lead to duplication because we use response.headers().add(..) instead of response.headers().set(..).

Modification:
In each `WebSocketServerHandshaker00`, ... `WebSocketServerHandshaker13` implementation replace the method add(..) to set(..) for reserved response headers.

Result:

Less error-prone
This commit is contained in:
Andrey Mizurov 2020-06-02 12:56:22 +03:00 committed by Norman Maurer
parent 311feaa20d
commit 4c7e017199
9 changed files with 158 additions and 14 deletions
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4
codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker00.java
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@ -147,8 +147,8 @@ public class WebSocketServerHandshaker00 extends WebSocketServerHandshaker {
res.headers().add(headers);
}
res.headers().add(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET);
res.headers().add(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE);
res.headers().set(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET)
.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE);
// Fill in the headers and contents depending on handshake getMethod.
if (isHixie76) {

6
codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker07.java
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@ -149,9 +149,9 @@ public class WebSocketServerHandshaker07 extends WebSocketServerHandshaker {
logger.debug("WebSocket version 07 server handshake key: {}, response: {}.", key, accept);
}
res.headers().add(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET);
res.headers().add(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE);
res.headers().add(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT, accept);
res.headers().set(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET)
.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE)
.set(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT, accept);
String subprotocols = req.headers().get(HttpHeaderNames.SEC_WEBSOCKET_PROTOCOL);
if (subprotocols != null) {

6
codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker08.java
View File

@ -155,9 +155,9 @@ public class WebSocketServerHandshaker08 extends WebSocketServerHandshaker {
logger.debug("WebSocket version 08 server handshake key: {}, response: {}", key, accept);
}
res.headers().add(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET);
res.headers().add(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE);
res.headers().add(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT, accept);
res.headers().set(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET)
.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE)
.set(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT, accept);
String subprotocols = req.headers().get(HttpHeaderNames.SEC_WEBSOCKET_PROTOCOL);
if (subprotocols != null) {

6
codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker13.java
View File

@ -153,9 +153,9 @@ public class WebSocketServerHandshaker13 extends WebSocketServerHandshaker {
logger.debug("WebSocket version 13 server handshake key: {}, response: {}", key, accept);
}
res.headers().add(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET);
res.headers().add(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE);
res.headers().add(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT, accept);
res.headers().set(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET)
.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE)
.set(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT, accept);
String subprotocols = req.headers().get(HttpHeaderNames.SEC_WEBSOCKET_PROTOCOL);
if (subprotocols != null) {

13
codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker00Test.java
View File

@ -37,7 +37,18 @@ import static io.netty.handler.codec.http.HttpVersion.HTTP_1_1;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
public class WebSocketServerHandshaker00Test {
public class WebSocketServerHandshaker00Test extends WebSocketServerHandshakerTest {
@Override
protected WebSocketServerHandshaker newHandshaker(String webSocketURL, String subprotocols,
WebSocketDecoderConfig decoderConfig) {
return new WebSocketServerHandshaker00(webSocketURL, subprotocols, decoderConfig);
}
@Override
protected WebSocketVersion webSocketVersion() {
return WebSocketVersion.V00;
}
@Test
public void testPerformOpeningHandshake() {

30
codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker07Test.java Normal file
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@ -0,0 +1,30 @@
/*
* Copyright 2020 The Netty Project
*
* The Netty Project licenses this file to you 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 io.netty.handler.codec.http.websocketx;
public class WebSocketServerHandshaker07Test extends WebSocketServerHandshakerTest {
@Override
protected WebSocketServerHandshaker newHandshaker(String webSocketURL, String subprotocols,
WebSocketDecoderConfig decoderConfig) {
return new WebSocketServerHandshaker07(webSocketURL, subprotocols, decoderConfig);
}
@Override
protected WebSocketVersion webSocketVersion() {
return WebSocketVersion.V07;
}
}

13
codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker08Test.java
View File

@ -33,7 +33,18 @@ import org.junit.Test;
import static io.netty.handler.codec.http.HttpVersion.*;
public class WebSocketServerHandshaker08Test {
public class WebSocketServerHandshaker08Test extends WebSocketServerHandshakerTest {
@Override
protected WebSocketServerHandshaker newHandshaker(String webSocketURL, String subprotocols,
WebSocketDecoderConfig decoderConfig) {
return new WebSocketServerHandshaker08(webSocketURL, subprotocols, decoderConfig);
}
@Override
protected WebSocketVersion webSocketVersion() {
return WebSocketVersion.V08;
}
@Test
public void testPerformOpeningHandshake() {

13
codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker13Test.java
View File

@ -40,7 +40,18 @@ import java.util.Iterator;
import static io.netty.handler.codec.http.HttpVersion.*;
public class WebSocketServerHandshaker13Test {
public class WebSocketServerHandshaker13Test extends WebSocketServerHandshakerTest {
@Override
protected WebSocketServerHandshaker newHandshaker(String webSocketURL, String subprotocols,
WebSocketDecoderConfig decoderConfig) {
return new WebSocketServerHandshaker13(webSocketURL, subprotocols, decoderConfig);
}
@Override
protected WebSocketVersion webSocketVersion() {
return WebSocketVersion.V13;
}
@Test
public void testPerformOpeningHandshake() {

81
codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshakerTest.java Normal file
View File

@ -0,0 +1,81 @@
/*
* Copyright 2020 The Netty Project
*
* The Netty Project licenses this file to you 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 io.netty.handler.codec.http.websocketx;
import io.netty.handler.codec.http.DefaultFullHttpRequest;
import io.netty.handler.codec.http.DefaultHttpHeaders;
import io.netty.handler.codec.http.FullHttpRequest;
import io.netty.handler.codec.http.FullHttpResponse;
import io.netty.handler.codec.http.HttpHeaderNames;
import io.netty.handler.codec.http.HttpHeaderValues;
import io.netty.handler.codec.http.HttpHeaders;
import io.netty.handler.codec.http.HttpMethod;
import io.netty.handler.codec.http.HttpVersion;
import org.junit.Test;
import static org.junit.Assert.*;
public abstract class WebSocketServerHandshakerTest {
protected abstract WebSocketServerHandshaker newHandshaker(String webSocketURL, String subprotocols,
WebSocketDecoderConfig decoderConfig);
protected abstract WebSocketVersion webSocketVersion();
@Test
public void testDuplicateHandshakeResponseHeaders() {
WebSocketServerHandshaker serverHandshaker = newHandshaker("ws://example.com/chat",
"chat", WebSocketDecoderConfig.DEFAULT);
FullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "/chat");
request.headers()
.set(HttpHeaderNames.HOST, "example.com")
.set(HttpHeaderNames.ORIGIN, "example.com")
.set(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET)
.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE)
.set(HttpHeaderNames.SEC_WEBSOCKET_KEY, "dGhlIHNhbXBsZSBub25jZQ==")
.set(HttpHeaderNames.SEC_WEBSOCKET_ORIGIN, "http://example.com")
.set(HttpHeaderNames.SEC_WEBSOCKET_PROTOCOL, "chat, superchat")
.set(HttpHeaderNames.SEC_WEBSOCKET_VERSION, webSocketVersion().toAsciiString());
HttpHeaders customResponseHeaders = new DefaultHttpHeaders();
// set duplicate required headers and one custom
customResponseHeaders
.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE)
.set(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET)
.set("custom", "header");
if (webSocketVersion() != WebSocketVersion.V00) {
customResponseHeaders.set(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT, "12345");
}
FullHttpResponse response = null;
try {
response = serverHandshaker.newHandshakeResponse(request, customResponseHeaders);
HttpHeaders responseHeaders = response.headers();
assertEquals(1, responseHeaders.getAll(HttpHeaderNames.CONNECTION).size());
assertEquals(1, responseHeaders.getAll(HttpHeaderNames.UPGRADE).size());
assertTrue(responseHeaders.containsValue("custom", "header", true));
if (webSocketVersion() != WebSocketVersion.V00) {
assertFalse(responseHeaders.containsValue(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT, "12345", false));
}
} finally {
request.release();
if (response != null) {
response.release();
}
}
}
}