/* Copyright (c) 2013 RelayRides
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.relayrides.pushy.apns;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.MessageToByteEncoder;
import io.netty.handler.ssl.SslHandler;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GenericFutureListener;
import java.util.ArrayList;
import java.util.List;
public class MockFeedbackServer {
private final int port;
private final NioEventLoopGroup eventLoopGroup;
private final ArrayList<ExpiredToken> expiredTokens = new ArrayList<ExpiredToken>();
private volatile boolean closeWhenDone = false;
private Channel channel;
private class ExpiredTokenEncoder extends MessageToByteEncoder<ExpiredToken> {
@Override
protected void encode(final ChannelHandlerContext context, final ExpiredToken expiredToken, final ByteBuf out) {
out.writeInt((int) (expiredToken.getExpiration().getTime() / 1000L));
out.writeShort(expiredToken.getToken().length);
out.writeBytes(expiredToken.getToken());
}
}
private class MockFeedbackServerHandler extends ChannelInboundHandlerAdapter {
private final MockFeedbackServer feedbackServer;
public MockFeedbackServerHandler(final MockFeedbackServer feedbackServer) {
this.feedbackServer = feedbackServer;
}
@Override
public void channelActive(final ChannelHandlerContext context) {
context.pipeline().get(SslHandler.class).handshakeFuture().addListener(new GenericFutureListener<Future<Channel>>() {
public void operationComplete(final Future<Channel> future) {
if (future.isSuccess()) {
final List<ExpiredToken> expiredTokens = feedbackServer.getAndClearAllExpiredTokens();
ChannelFuture lastWriteFuture = null;
for (final ExpiredToken expiredToken : expiredTokens) {
lastWriteFuture = context.write(expiredToken);
}
if (feedbackServer.closeWhenDone) {
if (lastWriteFuture != null) {
lastWriteFuture.addListener(ChannelFutureListener.CLOSE);
} else {
context.close();
}
}
context.flush();
} else {
throw new RuntimeException("Failed to complete TLS handshake.", future.cause());
}
}
});
}
}
public MockFeedbackServer(final int port) {
this(port, null);
}
public MockFeedbackServer(final int port, final NioEventLoopGroup eventLoopGroup) {
this.port = port;
this.eventLoopGroup = eventLoopGroup;
}
public synchronized void start() throws InterruptedException {
final ServerBootstrap bootstrap = new ServerBootstrap();
bootstrap.group(this.eventLoopGroup);
bootstrap.channel(NioServerSocketChannel.class);
final MockFeedbackServer server = this;
bootstrap.childHandler(new ChannelInitializer<SocketChannel>() {
@Override
protected void initChannel(final SocketChannel channel) throws Exception {
channel.pipeline().addLast("ssl", new SslHandler(SSLTestUtil.createSSLEngineForMockServer()));
channel.pipeline().addLast("encoder", new ExpiredTokenEncoder());
channel.pipeline().addLast("handler", new MockFeedbackServerHandler(server));
}
});
this.channel = bootstrap.bind(this.port).await().channel();
}
public synchronized void shutdown() throws InterruptedException {
if (this.channel != null) {
this.channel.close().await();
}
this.closeWhenDone = true;
this.expiredTokens.clear();
this.channel = null;
}
public synchronized void addExpiredToken(final ExpiredToken expiredToken) {
this.expiredTokens.add(expiredToken);
}
private synchronized List<ExpiredToken> getAndClearAllExpiredTokens() {
final ArrayList<ExpiredToken> tokensToReturn = new ArrayList<ExpiredToken>(this.expiredTokens);
this.expiredTokens.clear();
return tokensToReturn;
}
public void setCloseWhenDone(final boolean closeWhenDone) {
this.closeWhenDone = closeWhenDone;
}
}