Added a secure WebSocket client example
Merged WebSocketClient and WebSocketSslClient Add private constructors to fix checkstyle errors. More checkstyle madness. made WebSocketClientRunner final
This commit is contained in:
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1f5b74762b
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/*
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/*
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* Copyright 2012 The Netty Project
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* Copyright 2014 The Netty Project
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*
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*
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* The Netty Project licenses this file to you under the Apache License,
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* version 2.0 (the "License"); you may not use this file except in compliance
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@ -13,123 +13,35 @@
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* License for the specific language governing permissions and limitations
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* License for the specific language governing permissions and limitations
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* under the License.
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* under the License.
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*/
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*/
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//The MIT License
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//
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//Copyright (c) 2009 Carl Bystršm
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//
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//Permission is hereby granted, free of charge, to any person obtaining a copy
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//of this software and associated documentation files (the "Software"), to deal
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//in the Software without restriction, including without limitation the rights
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//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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//copies of the Software, and to permit persons to whom the Software is
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//furnished to do so, subject to the following conditions:
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//
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//The above copyright notice and this permission notice shall be included in
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//all copies or substantial portions of the Software.
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//
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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//THE SOFTWARE.
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package io.netty.example.http.websocketx.client;
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package io.netty.example.http.websocketx.client;
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import io.netty.bootstrap.Bootstrap;
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import io.netty.buffer.Unpooled;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelInitializer;
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import io.netty.channel.ChannelPipeline;
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import io.netty.channel.EventLoopGroup;
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import io.netty.channel.nio.NioEventLoopGroup;
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import io.netty.channel.socket.SocketChannel;
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import io.netty.channel.socket.nio.NioSocketChannel;
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import io.netty.handler.codec.http.DefaultHttpHeaders;
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import io.netty.handler.codec.http.HttpClientCodec;
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import io.netty.handler.codec.http.HttpHeaders;
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import io.netty.handler.codec.http.HttpObjectAggregator;
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import io.netty.handler.codec.http.websocketx.CloseWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.PingWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.WebSocketClientHandshakerFactory;
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import io.netty.handler.codec.http.websocketx.WebSocketVersion;
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import java.net.URI;
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import java.net.URI;
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public class WebSocketClient {
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/**
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* This is an example of a WebSocket client.
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private final URI uri;
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* <p>
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* In order to run this example you need a compatible WebSocket server.
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public WebSocketClient(URI uri) {
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* Therefore you can either start the WebSocket server from the examples
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this.uri = uri;
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* by running {@link io.netty.example.http.websocketx.server.WebSocketServer}
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* or connect to an existing WebSocket server such as
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* <a href="http://www.websocket.org/echo.html">ws://echo.websocket.org</a>.
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* <p>
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* The client will attempt to connect to the URI passed to it as the first argument.
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* You don't have to specify any arguments if you want to connect to the example WebSocket server,
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* as this is the default.
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*/
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public final class WebSocketClient {
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private WebSocketClient() {
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}
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}
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public void run() throws Exception {
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public static void main(String... args) throws Exception {
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EventLoopGroup group = new NioEventLoopGroup();
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try {
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Bootstrap b = new Bootstrap();
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String protocol = uri.getScheme();
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if (!"ws".equals(protocol)) {
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throw new IllegalArgumentException("Unsupported protocol: " + protocol);
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}
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HttpHeaders customHeaders = new DefaultHttpHeaders();
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customHeaders.add("MyHeader", "MyValue");
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// Connect with V13 (RFC 6455 aka HyBi-17). You can change it to V08 or V00.
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// If you change it to V00, ping is not supported and remember to change
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// HttpResponseDecoder to WebSocketHttpResponseDecoder in the pipeline.
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final WebSocketClientHandler handler =
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new WebSocketClientHandler(
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WebSocketClientHandshakerFactory.newHandshaker(
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uri, WebSocketVersion.V13, null, false, customHeaders));
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b.group(group)
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.channel(NioSocketChannel.class)
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.handler(new ChannelInitializer<SocketChannel>() {
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@Override
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public void initChannel(SocketChannel ch) throws Exception {
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ChannelPipeline pipeline = ch.pipeline();
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pipeline.addLast("http-codec", new HttpClientCodec());
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pipeline.addLast("aggregator", new HttpObjectAggregator(8192));
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pipeline.addLast("ws-handler", handler);
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}
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});
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System.out.println("WebSocket Client connecting");
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Channel ch = b.connect(uri.getHost(), uri.getPort()).sync().channel();
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handler.handshakeFuture().sync();
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// Send 10 messages and wait for responses
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System.out.println("WebSocket Client sending message");
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for (int i = 0; i < 10; i++) {
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ch.writeAndFlush(new TextWebSocketFrame("Message #" + i));
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}
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// Ping
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System.out.println("WebSocket Client sending ping");
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ch.writeAndFlush(new PingWebSocketFrame(Unpooled.copiedBuffer(new byte[]{1, 2, 3, 4, 5, 6})));
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// Close
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System.out.println("WebSocket Client sending close");
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ch.writeAndFlush(new CloseWebSocketFrame());
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// WebSocketClientHandler will close the connection when the server
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// responds to the CloseWebSocketFrame.
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ch.closeFuture().sync();
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} finally {
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group.shutdownGracefully();
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}
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}
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public static void main(String[] args) throws Exception {
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URI uri;
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URI uri;
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if (args.length > 0) {
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if (args.length > 0) {
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uri = new URI(args[0]);
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uri = new URI(args[0]);
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} else {
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} else {
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uri = new URI("ws://localhost:8080/websocket");
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uri = new URI("ws://localhost:8080/websocket");
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}
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}
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new WebSocketClient(uri).run();
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new WebSocketClientRunner(uri).run();
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}
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}
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}
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}
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/*
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* Copyright 2014 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.example.http.websocketx.client;
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import io.netty.bootstrap.Bootstrap;
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import io.netty.buffer.Unpooled;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelInitializer;
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import io.netty.channel.EventLoopGroup;
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import io.netty.channel.nio.NioEventLoopGroup;
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import io.netty.channel.socket.SocketChannel;
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import io.netty.channel.socket.nio.NioSocketChannel;
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import io.netty.handler.codec.http.DefaultHttpHeaders;
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import io.netty.handler.codec.http.HttpClientCodec;
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import io.netty.handler.codec.http.HttpObjectAggregator;
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import io.netty.handler.codec.http.websocketx.CloseWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.PingWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.WebSocketClientHandshakerFactory;
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import io.netty.handler.codec.http.websocketx.WebSocketFrame;
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import io.netty.handler.codec.http.websocketx.WebSocketVersion;
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import io.netty.handler.ssl.SslHandler;
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import javax.net.ssl.SSLEngine;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.net.URI;
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public final class WebSocketClientRunner {
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private final URI uri;
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public WebSocketClientRunner(URI uri) {
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this.uri = uri;
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}
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public void run() throws Exception {
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EventLoopGroup group = new NioEventLoopGroup();
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try {
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// Connect with V13 (RFC 6455 aka HyBi-17). You can change it to V08 or V00.
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// If you change it to V00, ping is not supported and remember to change
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// HttpResponseDecoder to WebSocketHttpResponseDecoder in the pipeline.
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final WebSocketClientHandler handler =
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new WebSocketClientHandler(
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WebSocketClientHandshakerFactory.newHandshaker(
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uri, WebSocketVersion.V13, null, false, new DefaultHttpHeaders()));
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final String protocol = uri.getScheme();
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int defaultPort;
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ChannelInitializer<SocketChannel> initializer;
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// Normal WebSocket
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if ("ws".equals(protocol)) {
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initializer = new ChannelInitializer<SocketChannel>() {
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@Override
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public void initChannel(SocketChannel ch) throws Exception {
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ch.pipeline()
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.addLast("http-codec", new HttpClientCodec())
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.addLast("aggregator", new HttpObjectAggregator(8192))
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.addLast("ws-handler", handler);
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}
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};
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defaultPort = 80;
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// Secure WebSocket
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} else if ("wss".equals(protocol)) {
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initializer = new ChannelInitializer<SocketChannel>() {
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@Override
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public void initChannel(SocketChannel ch) throws Exception {
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SSLEngine engine = WebSocketSslClientContextFactory.getContext().createSSLEngine();
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engine.setUseClientMode(true);
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ch.pipeline()
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.addFirst("ssl", new SslHandler(engine))
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.addLast("http-codec", new HttpClientCodec())
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.addLast("aggregator", new HttpObjectAggregator(8192))
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.addLast("ws-handler", handler);
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}
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};
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defaultPort = 443;
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} else {
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throw new IllegalArgumentException("Unsupported protocol: " + protocol);
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}
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Bootstrap b = new Bootstrap();
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b.group(group)
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.channel(NioSocketChannel.class)
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.handler(initializer);
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int port = uri.getPort();
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// If no port was specified, we'll try the default port: https://tools.ietf.org/html/rfc6455#section-1.7
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if (uri.getPort() == -1) {
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port = defaultPort;
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}
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Channel ch = b.connect(uri.getHost(), port).sync().channel();
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handler.handshakeFuture().sync();
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BufferedReader console = new BufferedReader(new InputStreamReader(System.in));
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while (true) {
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String msg = console.readLine();
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if (msg == null) {
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break;
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} else if ("bye".equals(msg.toLowerCase())) {
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ch.writeAndFlush(new CloseWebSocketFrame());
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ch.closeFuture().sync();
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break;
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} else if ("ping".equals(msg.toLowerCase())) {
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WebSocketFrame frame = new PingWebSocketFrame(Unpooled.copiedBuffer(new byte[]{8, 1, 8, 1}));
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ch.writeAndFlush(frame);
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} else {
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WebSocketFrame frame = new TextWebSocketFrame(msg);
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ch.writeAndFlush(frame);
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}
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}
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} finally {
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group.shutdownGracefully();
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}
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}
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}
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/*
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* Copyright 2014 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.example.http.websocketx.client;
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import java.net.URI;
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/**
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* This is an example of a secure WebSocket client.
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* <p>
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* In order to run this example you need a compatible secure WebSocket server.
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* Therefore you can either start the secure WebSocket server from the examples
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* by running {@link io.netty.example.http.websocketx.sslserver.WebSocketSslServer}
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* or connect to an existing secure WebSocket server such as
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* <a href="http://www.websocket.org/echo.html">wss://echo.websocket.org</a>.
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* <p>
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* The client will attempt to connect to the URI passed to it as the first argument.
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* You don't have to specify any arguments if you want to connect to the example secure WebSocket server,
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* as this is the default.
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*/
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public final class WebSocketSslClient {
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private WebSocketSslClient() {
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}
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public static void main(String... args) throws Exception {
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URI uri;
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if (args.length > 0) {
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uri = new URI(args[0]);
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} else {
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uri = new URI("wss://localhost:8443/websocket");
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}
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new WebSocketClientRunner(uri).run();
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}
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}
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/*
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* Copyright 2014 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.example.http.websocketx.client;
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import javax.net.ssl.SSLContext;
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/**
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* Creates a bogus {@link javax.net.ssl.SSLContext}. A client-side context created by this
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* factory accepts any certificate even if it is invalid.
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* <p>
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* You will have to create your context differently in a real world application.
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* <p>
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* Modified from {@link io.netty.example.securechat.SecureChatSslContextFactory}
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*/
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public final class WebSocketSslClientContextFactory {
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private static final String PROTOCOL = "TLS";
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private static final SSLContext CONTEXT;
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static {
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SSLContext clientContext;
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try {
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clientContext = SSLContext.getInstance(PROTOCOL);
|
||||||
|
clientContext.init(null, WebSocketSslClientTrustManagerFactory.getTrustManagers(), null);
|
||||||
|
} catch (Exception e) {
|
||||||
|
throw new Error(
|
||||||
|
"Failed to initialize the client-side SSLContext", e);
|
||||||
|
}
|
||||||
|
|
||||||
|
CONTEXT = clientContext;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static SSLContext getContext() {
|
||||||
|
return CONTEXT;
|
||||||
|
}
|
||||||
|
|
||||||
|
private WebSocketSslClientContextFactory() {
|
||||||
|
// Unused
|
||||||
|
}
|
||||||
|
}
|
@ -0,0 +1,79 @@
|
|||||||
|
/*
|
||||||
|
* 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.example.http.websocketx.client;
|
||||||
|
|
||||||
|
import javax.net.ssl.ManagerFactoryParameters;
|
||||||
|
import javax.net.ssl.TrustManager;
|
||||||
|
import javax.net.ssl.TrustManagerFactorySpi;
|
||||||
|
import javax.net.ssl.X509TrustManager;
|
||||||
|
import java.security.InvalidAlgorithmParameterException;
|
||||||
|
import java.security.KeyStore;
|
||||||
|
import java.security.KeyStoreException;
|
||||||
|
import java.security.cert.X509Certificate;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Bogus {@link javax.net.ssl.TrustManagerFactorySpi} which accepts any certificate
|
||||||
|
* even if it is invalid.
|
||||||
|
* <p>
|
||||||
|
* Copied from {@link io.netty.example.securechat.SecureChatTrustManagerFactory}
|
||||||
|
*/
|
||||||
|
public class WebSocketSslClientTrustManagerFactory extends TrustManagerFactorySpi {
|
||||||
|
|
||||||
|
private static final TrustManager DUMMY_TRUST_MANAGER = new X509TrustManager() {
|
||||||
|
@Override
|
||||||
|
public X509Certificate[] getAcceptedIssuers() {
|
||||||
|
return new X509Certificate[0];
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void checkClientTrusted(X509Certificate[] chain, String authType) {
|
||||||
|
// Always trust - it is an example.
|
||||||
|
// You should do something in the real world.
|
||||||
|
// You will reach here only if you enabled client certificate auth,
|
||||||
|
// as described in WebSocketSslClientContextFactory.
|
||||||
|
System.err.println(
|
||||||
|
"UNKNOWN CLIENT CERTIFICATE: " + chain[0].getSubjectDN());
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void checkServerTrusted(X509Certificate[] chain, String authType) {
|
||||||
|
// Always trust - it is an example.
|
||||||
|
// You should do something in the real world.
|
||||||
|
System.err.println(
|
||||||
|
"UNKNOWN SERVER CERTIFICATE: " + chain[0].getSubjectDN());
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
public static TrustManager[] getTrustManagers() {
|
||||||
|
return new TrustManager[]{DUMMY_TRUST_MANAGER};
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
protected TrustManager[] engineGetTrustManagers() {
|
||||||
|
return getTrustManagers();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
protected void engineInit(KeyStore keystore) throws KeyStoreException {
|
||||||
|
// Unused
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
protected void engineInit(ManagerFactoryParameters managerFactoryParameters)
|
||||||
|
throws InvalidAlgorithmParameterException {
|
||||||
|
// Unused
|
||||||
|
}
|
||||||
|
}
|
@ -1,23 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright 2012 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.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* <p>This is an example web service client.
|
|
||||||
* <p>To run this example, you must first start
|
|
||||||
* {@link io.netty.example.http.websocketx.server.WebSocketServer} and
|
|
||||||
* then {@link io.netty.example.http.websocketx.client.WebSocketClient}.
|
|
||||||
*/
|
|
||||||
package io.netty.example.http.websocketx.client;
|
|
Loading…
Reference in New Issue
Block a user