Zond: соединение с ASys

zond/build.gradle

@@ -1,5 +1,5 @@
 group = 'asys'
-version = '0.1-SNAPSHOT'
+version = '0.2-SNAPSHOT'
 
 apply plugin: 'application'
 
@@ -10,7 +10,13 @@ configurations {
     compile.extendsFrom included
 }
 
+compileJava {
+    dependsOn ':bridge-protocol:compileJava'
+}
+
 jar {
+    dependsOn ':bridge-protocol:jar'
+    dependsOn configurations.included
     manifest {
         attributes 'Implementation-Title': 'ASys Zond',
                    'Implementation-Version': version,
@@ -20,7 +26,14 @@ jar {
     from { configurations.included.collect { it.isDirectory() ? it : zipTree(it) } }
 }
 
+ext {
+    nettyVersion = '4.0.23.Final'
+}
+
 dependencies {
+    included files(project(':bridge-protocol').sourceSets.main.output.classesDir)
     included group: 'org.fusesource.jansi', name: 'jansi', version: '1.11'
     included group: 'org.apache.commons', name: 'commons-exec', version: '1.3'
+    included group: 'io.netty', name: 'netty-codec', version: nettyVersion
+    included group: 'com.google.guava', name: 'guava', version: '21.0'
 }

zond/src/main/java/asys/zond/Config.java

@@ -0,0 +1,35 @@
+/*
+ * DmitriyMX <d.mihailov@samson-rus.com>
+ * 2017-06-08
+ */
+package asys.zond;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+public class Config {
+    private static Properties properties = new Properties();
+
+    private Config(){
+    }
+
+    public static void load(InputStream inputStream) throws IOException {
+        properties.load(inputStream);
+        if (properties.size() == 0) {
+            throw new IOException("Config empty!");
+        }
+    }
+
+    public static String getString(String key) {
+        return properties.getProperty(key);
+    }
+
+    public static int getInt(String key) {
+        try {
+            return Integer.parseInt(properties.getProperty(key));
+        } catch (NumberFormatException e) {
+            return 0;
+        }
+    }
+}

zond/src/main/java/asys/zond/Main.java

@@ -5,6 +5,7 @@
  */
 package asys.zond;
 
+import asys.zond.proxy.Client;
 import org.apache.commons.exec.CommandLine;
 import org.apache.commons.exec.DefaultExecutor;
 import org.apache.commons.exec.ExecuteException;
@@ -13,13 +14,22 @@ import org.fusesource.jansi.Ansi;
 import org.fusesource.jansi.Ansi.Color;
 import org.fusesource.jansi.AnsiConsole;
 
-import java.io.IOException;
+import java.io.*;
 import java.util.Arrays;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
 
 import static org.fusesource.jansi.Ansi.ansi;
 
 public class Main {
+    private static Client client;
+    private static ScheduledExecutorService ses;
+    private static ScheduledFuture<?> sesFuture;
+    private static int tryConnect = 0;
+
     public static void main(String[] args) throws IOException {
         if (Boolean.getBoolean("ansi.install")) {
             AnsiConsole.systemInstall();
@@ -36,6 +46,21 @@ public class Main {
             return;
         }
 
+        loadConfig();
+        startReconnect();
+
+        int resultCode = executeProcess(args);
+
+        stopReconnect();
+        ses.shutdown();
+        client.disconnect();
+
+        System.out.print(ansi().reset().newline()
+                .fg(Color.GREEN).a("Process Finished. Code: ")
+                .bold().fg(Color.WHITE).a(resultCode).reset().newline());
+    }
+
+    private static int executeProcess(String[] args) {
         String cmdLine = Arrays.stream(args).collect(Collectors.joining(" "));
         CommandLine commandLine = CommandLine.parse(cmdLine);
         DefaultExecutor executor = new DefaultExecutor();
@@ -46,9 +71,56 @@ public class Main {
         try {
             resultCode = executor.execute(commandLine);
         } catch (ExecuteException ignore) {
+        } catch (IOException e) {
+            e.printStackTrace();
+            resultCode = -1;
+        }
+
+        return resultCode;
+    }
+
+    private static void loadConfig() throws IOException {
+        File zondPropertiesFile = new File("zond.properties");
+        if (!zondPropertiesFile.exists()) {
+            InputStream stream = Main.class.getResourceAsStream("/zond.properties");
+            FileOutputStream fos = new FileOutputStream(zondPropertiesFile);
+            byte[] buff = new byte[65536];
+            int len;
+            while ((len = stream.read(buff)) > 0) {
+                fos.write(buff, 0, len);
+            }
+            fos.flush();
+            fos.close();
+        }
+
+        FileInputStream fis = new FileInputStream(zondPropertiesFile);
+        Config.load(fis);
+        fis.close();
+    }
+
+    public static void log(String message){
+        System.out.println("[ASys Zond] " + message);
+    }
+
+    public static void startReconnect() {
+        client = new Client();
+        ses = Executors.newScheduledThreadPool(2);
+        sesFuture = ses.scheduleAtFixedRate(() -> {
+            log(String.format("Connect(%d) to ASys...", ++tryConnect));
+            client.connect(Config.getString("host"), Config.getInt("port"));
+            if (client.isConnected()) {
+                stopReconnect();
+            } else {
+                log(String.format("Connection(%d) fail. Try reconnect...", tryConnect));
+            }
+        }, 0L, 5L, TimeUnit.SECONDS);
+    }
+
+    private static void stopReconnect() {
+        if (sesFuture != null) {
+            sesFuture.cancel(false);
+            sesFuture = null;
+            tryConnect = 0;
         }
-        System.out.print(ansi().reset().newline()
-                .fg(Color.GREEN).a("Process Finished. Code: ")
-                .bold().fg(Color.WHITE).a(resultCode).reset().newline());
     }
 }

zond/src/main/java/asys/zond/proxy/Client.java

@@ -0,0 +1,60 @@
+/*
+ * DmitriyMX <d.mihailov@samson-rus.com>
+ * 2017-06-08
+ */
+package asys.zond.proxy;
+
+import asys.mcsmanager.packets.codec.PacketDecoder;
+import asys.mcsmanager.packets.codec.PacketEncoder;
+import asys.mcsmanager.packets.codec.PacketHandler;
+import io.netty.bootstrap.Bootstrap;
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.channel.socket.nio.NioSocketChannel;
+
+public class Client {
+    private EventLoopGroup group;
+    private Bootstrap bootstrap;
+    private ChannelFuture channelFuture;
+
+    public void connect(String host, int port) {
+        if (group == null || bootstrap == null) {
+            group = new NioEventLoopGroup();
+            bootstrap = createBootstrap();
+        }
+    }
+
+    public boolean isConnected() {
+        return (channelFuture != null && channelFuture.isSuccess());
+    }
+
+    public void disconnect() {
+        group.shutdownGracefully();
+    }
+
+    private Bootstrap createBootstrap() {
+        Bootstrap bootstrap = new Bootstrap();
+        bootstrap.group(group)
+                .channel(NioSocketChannel.class)
+                .handler(createChannelInitializer());
+
+        return bootstrap;
+    }
+
+    private ChannelInitializer createChannelInitializer() {
+        return new ChannelInitializer<SocketChannel>() {
+            @Override
+            protected void initChannel(SocketChannel socketChannel) throws Exception {
+                socketChannel.pipeline().addLast(
+                        new PacketEncoder(),
+                        new PacketDecoder(),
+                        new PacketHandler(),
+                        new ClientPacketHandler()
+                );
+            }
+        };
+    }
+}

zond/src/main/java/asys/zond/proxy/ClientPacketHandler.java

@@ -0,0 +1,79 @@
+/*
+ * DmitriyMX <d.mihailov@samson-rus.com>
+ * 2017-06-08
+ */
+package asys.zond.proxy;
+
+import asys.mcsmanager.packets.*;
+import asys.zond.Config;
+import asys.zond.Main;
+import com.google.common.collect.BiMap;
+import com.google.common.collect.ImmutableBiMap;
+import com.google.common.collect.ImmutableMap;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
+
+import java.util.Map;
+
+import static asys.mcsmanager.packets.codec.Params.KNOWN_HANDLERS;
+import static asys.mcsmanager.packets.codec.Params.KNOWN_PACKETS;
+import static asys.zond.Main.log;
+
+public class ClientPacketHandler extends ChannelInboundHandlerAdapter implements IPacketHandler {
+    private static final BiMap<Integer, Class<? extends Packet>> handshakePackets = ImmutableBiMap.of(
+            1, CS_Handshake.class,
+            2, SC_HandshakeResult.class
+    );
+    private static Map<Class<? extends Packet>, IPacketHandler> handshakeHandlers;
+
+    private static final BiMap<Integer, Class<? extends Packet>> knownPackets = ImmutableBiMap.of(
+            3, CS_Ping.class,
+            4, CS_ConsoleMessage.class
+    );
+
+    ClientPacketHandler() {
+        if (handshakeHandlers == null) {
+            handshakeHandlers = ImmutableMap.of(
+                    SC_HandshakeResult.class, this
+            );
+        }
+    }
+
+    @Override
+    public void channelActive(ChannelHandlerContext ctx) throws Exception {
+        log("channelActive");
+        ctx.channel().attr(KNOWN_PACKETS).set(handshakePackets);
+        ctx.channel().attr(KNOWN_HANDLERS).set(handshakeHandlers);
+
+        CS_Handshake packet = new CS_Handshake(
+                Config.getString("clientId"),
+                Config.getString("passcode"));
+        log("send Handshake packet...");
+        ctx.channel().writeAndFlush(packet);
+
+        super.channelActive(ctx);
+    }
+
+    @Override
+    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
+        log("Lost connection!");
+        log("Try reconnect...");
+        Main.startReconnect();
+
+        ctx.channel().attr(KNOWN_PACKETS).remove();
+        ctx.channel().attr(KNOWN_HANDLERS).remove();
+        super.channelInactive(ctx);
+    }
+
+    @Override
+    public void handle(Packet packet, ChannelHandlerContext context) {
+        log("handle : " + packet.getClass().getSimpleName());
+        SC_HandshakeResult pkt = (SC_HandshakeResult) packet;
+        if (pkt.getErrorCode() != 0) {
+            log(String.format("Handshake: #%d %s", pkt.getErrorCode(), pkt.getMessage()));
+        } else {
+            context.channel().attr(KNOWN_PACKETS).set(knownPackets);
+            log("Handshake: OK");
+        }
+    }
+}

zond/src/main/resources/zond.properties

@@ -0,0 +1,4 @@
+clientId = SpigotServer0
+host = 127.0.0.1
+port = 8779
+passcode = testpassphrase