/*
* Copyright 2014 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.extensions.compression;
import io.netty.channel.embedded.EmbeddedChannel;
import io.netty.handler.codec.http.HttpHeaderNames;
import io.netty.handler.codec.http.HttpRequest;
import io.netty.handler.codec.http.HttpResponse;
import io.netty.handler.codec.http.websocketx.extensions.WebSocketExtensionData;
import io.netty.handler.codec.http.websocketx.extensions.WebSocketExtensionUtil;
import io.netty.handler.codec.http.websocketx.extensions.WebSocketServerExtensionHandler;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
import static io.netty.handler.codec.http.websocketx.extensions.compression.
PerMessageDeflateServerExtensionHandshaker.*;
import static io.netty.handler.codec.http.websocketx.extensions.WebSocketExtensionTestUtil.*;
public class WebSocketServerCompressionHandlerTest {
@Test
public void testNormalSuccess() {
EmbeddedChannel ch = new EmbeddedChannel(new WebSocketServerCompressionHandler());
HttpRequest req = newUpgradeRequest(PERMESSAGE_DEFLATE_EXTENSION);
ch.writeInbound(req);
HttpResponse res = newUpgradeResponse(null);
ch.writeOutbound(res);
HttpResponse res2 = ch.readOutbound();
List<WebSocketExtensionData> exts = WebSocketExtensionUtil.extractExtensions(
res2.headers().get(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));
Assert.assertEquals(PERMESSAGE_DEFLATE_EXTENSION, exts.get(0).name());
Assert.assertTrue(exts.get(0).parameters().isEmpty());
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateDecoder.class));
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateEncoder.class));
}
@Test
public void testClientWindowSizeSuccess() {
EmbeddedChannel ch = new EmbeddedChannel(new WebSocketServerExtensionHandler(
new PerMessageDeflateServerExtensionHandshaker(6, false, 10, false, false)));
HttpRequest req = newUpgradeRequest(PERMESSAGE_DEFLATE_EXTENSION + "; " + CLIENT_MAX_WINDOW);
ch.writeInbound(req);
HttpResponse res = newUpgradeResponse(null);
ch.writeOutbound(res);
HttpResponse res2 = ch.readOutbound();
List<WebSocketExtensionData> exts = WebSocketExtensionUtil.extractExtensions(
res2.headers().get(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));
Assert.assertEquals(PERMESSAGE_DEFLATE_EXTENSION, exts.get(0).name());
Assert.assertEquals("10", exts.get(0).parameters().get(CLIENT_MAX_WINDOW));
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateDecoder.class));
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateEncoder.class));
}
@Test
public void testClientWindowSizeUnavailable() {
EmbeddedChannel ch = new EmbeddedChannel(new WebSocketServerExtensionHandler(
new PerMessageDeflateServerExtensionHandshaker(6, false, 10, false, false)));
HttpRequest req = newUpgradeRequest(PERMESSAGE_DEFLATE_EXTENSION);
ch.writeInbound(req);
HttpResponse res = newUpgradeResponse(null);
ch.writeOutbound(res);
HttpResponse res2 = ch.readOutbound();
List<WebSocketExtensionData> exts = WebSocketExtensionUtil.extractExtensions(
res2.headers().get(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));
Assert.assertEquals(PERMESSAGE_DEFLATE_EXTENSION, exts.get(0).name());
Assert.assertTrue(exts.get(0).parameters().isEmpty());
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateDecoder.class));
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateEncoder.class));
}
@Test
public void testServerWindowSizeSuccess() {
EmbeddedChannel ch = new EmbeddedChannel(new WebSocketServerExtensionHandler(
new PerMessageDeflateServerExtensionHandshaker(6, true, 15, false, false)));
HttpRequest req = newUpgradeRequest(PERMESSAGE_DEFLATE_EXTENSION + "; " + SERVER_MAX_WINDOW + "=10");
ch.writeInbound(req);
HttpResponse res = newUpgradeResponse(null);
ch.writeOutbound(res);
HttpResponse res2 = ch.readOutbound();
List<WebSocketExtensionData> exts = WebSocketExtensionUtil.extractExtensions(
res2.headers().get(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));
Assert.assertEquals(PERMESSAGE_DEFLATE_EXTENSION, exts.get(0).name());
Assert.assertEquals("10", exts.get(0).parameters().get(SERVER_MAX_WINDOW));
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateDecoder.class));
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateEncoder.class));
}
@Test
public void testServerWindowSizeDisable() {
EmbeddedChannel ch = new EmbeddedChannel(new WebSocketServerExtensionHandler(
new PerMessageDeflateServerExtensionHandshaker(6, false, 15, false, false)));
HttpRequest req = newUpgradeRequest(PERMESSAGE_DEFLATE_EXTENSION + "; " + SERVER_MAX_WINDOW + "=10");
ch.writeInbound(req);
HttpResponse res = newUpgradeResponse(null);
ch.writeOutbound(res);
HttpResponse res2 = ch.readOutbound();
Assert.assertFalse(res2.headers().contains(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));
Assert.assertNull(ch.pipeline().get(PerMessageDeflateDecoder.class));
Assert.assertNull(ch.pipeline().get(PerMessageDeflateEncoder.class));
}
@Test
public void testServerNoContext() {
EmbeddedChannel ch = new EmbeddedChannel(new WebSocketServerCompressionHandler());
HttpRequest req = newUpgradeRequest(PERMESSAGE_DEFLATE_EXTENSION + "; " + SERVER_NO_CONTEXT);
ch.writeInbound(req);
HttpResponse res = newUpgradeResponse(null);
ch.writeOutbound(res);
HttpResponse res2 = ch.readOutbound();
Assert.assertFalse(res2.headers().contains(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));
Assert.assertNull(ch.pipeline().get(PerMessageDeflateDecoder.class));
Assert.assertNull(ch.pipeline().get(PerMessageDeflateEncoder.class));
}
@Test
public void testClientNoContext() {
EmbeddedChannel ch = new EmbeddedChannel(new WebSocketServerCompressionHandler());
HttpRequest req = newUpgradeRequest(PERMESSAGE_DEFLATE_EXTENSION + "; " + CLIENT_NO_CONTEXT);
ch.writeInbound(req);
HttpResponse res = newUpgradeResponse(null);
ch.writeOutbound(res);
HttpResponse res2 = ch.readOutbound();
List<WebSocketExtensionData> exts = WebSocketExtensionUtil.extractExtensions(
res2.headers().get(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));
Assert.assertEquals(PERMESSAGE_DEFLATE_EXTENSION, exts.get(0).name());
Assert.assertTrue(exts.get(0).parameters().isEmpty());
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateDecoder.class));
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateEncoder.class));
}
@Test
public void testServerWindowSizeDisableThenFallback() {
EmbeddedChannel ch = new EmbeddedChannel(new WebSocketServerExtensionHandler(
new PerMessageDeflateServerExtensionHandshaker(6, false, 15, false, false)));
HttpRequest req = newUpgradeRequest(PERMESSAGE_DEFLATE_EXTENSION + "; " + SERVER_MAX_WINDOW + "=10, " +
PERMESSAGE_DEFLATE_EXTENSION);
ch.writeInbound(req);
HttpResponse res = newUpgradeResponse(null);
ch.writeOutbound(res);
HttpResponse res2 = ch.readOutbound();
List<WebSocketExtensionData> exts = WebSocketExtensionUtil.extractExtensions(
res2.headers().get(HttpHeaderNames.SEC_WEBSOCKET_EXTENSIONS));
Assert.assertEquals(PERMESSAGE_DEFLATE_EXTENSION, exts.get(0).name());
Assert.assertTrue(exts.get(0).parameters().isEmpty());
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateDecoder.class));
Assert.assertNotNull(ch.pipeline().get(PerMessageDeflateEncoder.class));
}
}