fix: 修复MiaoScriptEngine在MOD服下未找到引擎的问题

Signed-off-by: 502647092 <admin@yumc.pw>

src/test/java/pw/yumc/YumCore/update/HotSwapTaskTest.java

@@ -0,0 +1,36 @@
+package pw.yumc.YumCore.update;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+
+import javax.script.ScriptException;
+
+import org.junit.Test;
+
+import pw.yumc.YumCore.engine.MiaoScriptEngine;
+
+/**
+ * Created with IntelliJ IDEA
+ *
+ * @author 喵♂呜
+ * Created on 2017/8/29 20:24.
+ */
+public class HotSwapTaskTest {
+    private MiaoScriptEngine engine;
+
+    public HotSwapTaskTest() {
+        this.engine = new MiaoScriptEngine();
+        engine.put("$", this);
+    }
+
+    @Test
+    public void test() throws FileNotFoundException, ScriptException {
+        engine.eval(new FileReader(new File("src/test/resources/hotswap.js")));
+    }
+
+    @Test
+    public void testClient() throws FileNotFoundException, ScriptException {
+        engine.eval(new FileReader(new File("src/test/resources/nio-client.js")));
+    }
+}

src/test/java/pw/yumc/YumCore/update/NIOServer.java

@@ -0,0 +1,115 @@
+package pw.yumc.YumCore.update;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.SelectionKey;
+import java.nio.channels.Selector;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.channels.SocketChannel;
+import java.util.Iterator;
+
+/**
+ * NIO服务端
+ *
+ * @author 小路
+ */
+public class NIOServer {
+    //通道管理器
+    private Selector selector;
+
+    /**
+     * 获得一个ServerSocket通道，并对该通道做一些初始化的工作
+     *
+     * @param port
+     *         绑定的端口号
+     * @throws IOException
+     */
+    public void initServer(int port) throws IOException {
+        // 获得一个ServerSocket通道
+        ServerSocketChannel serverChannel = ServerSocketChannel.open();
+        // 设置通道为非阻塞
+        serverChannel.configureBlocking(false);
+        // 将该通道对应的ServerSocket绑定到port端口
+        serverChannel.socket().bind(new InetSocketAddress(port));
+        // 获得一个通道管理器
+        this.selector = Selector.open();
+        //将通道管理器和该通道绑定，并为该通道注册SelectionKey.OP_ACCEPT事件,注册该事件后，
+        //当该事件到达时，selector.select()会返回，如果该事件没到达selector.select()会一直阻塞。
+        serverChannel.register(selector, SelectionKey.OP_ACCEPT);
+    }
+
+    /**
+     * 采用轮询的方式监听selector上是否有需要处理的事件，如果有，则进行处理
+     *
+     * @throws IOException
+     */
+    @SuppressWarnings("unchecked")
+    public void listen() throws IOException {
+        System.out.println("服务端启动成功！");
+        // 轮询访问selector
+        while (!Thread.currentThread().isInterrupted()) {
+            //当注册的事件到达时，方法返回；否则,该方法会一直阻塞
+            selector.select();
+            // 获得selector中选中的项的迭代器，选中的项为注册的事件
+            Iterator ite = this.selector.selectedKeys().iterator();
+            while (ite.hasNext()) {
+                SelectionKey key = (SelectionKey) ite.next();
+                // 删除已选的key,以防重复处理
+                ite.remove();
+                // 客户端请求连接事件
+                if (key.isAcceptable()) {
+                    ServerSocketChannel server = (ServerSocketChannel) key
+                            .channel();
+                    // 获得和客户端连接的通道
+                    SocketChannel channel = server.accept();
+                    // 设置成非阻塞
+                    channel.configureBlocking(false);
+
+                    //在这里可以给客户端发送信息哦
+                    channel.write(ByteBuffer.wrap("向客户端发送了一条信息".getBytes()));
+                    //在和客户端连接成功之后，为了可以接收到客户端的信息，需要给通道设置读的权限。
+                    channel.register(this.selector, SelectionKey.OP_READ);
+
+                    // 获得了可读的事件
+                } else if (key.isReadable()) {
+                    try {
+                        read(key);
+                    } catch (Exception ignored) {
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * 处理读取客户端发来的信息 的事件
+     *
+     * @param key
+     * @throws IOException
+     */
+    public void read(SelectionKey key) throws IOException {
+        // 服务器可读取消息:得到事件发生的Socket通道
+        SocketChannel channel = (SocketChannel) key.channel();
+        // 创建读取的缓冲区
+        ByteBuffer buffer = ByteBuffer.allocate(10);
+        channel.read(buffer);
+        byte[] data = buffer.array();
+        String msg = new String(data).trim();
+        System.out.println("服务端收到信息：" + msg);
+        ByteBuffer outBuffer = ByteBuffer.wrap(msg.getBytes());
+        channel.write(outBuffer);// 将消息回送给客户端
+    }
+
+    /**
+     * 启动服务端测试
+     *
+     * @throws IOException
+     */
+    public static void main(String[] args) throws IOException {
+        NIOServer server = new NIOServer();
+        server.initServer(8233);
+        server.listen();
+    }
+
+}

src/test/resources/hotswap.js

@@ -0,0 +1,23 @@
+var BufferedReader = java.io.BufferedReader;
+var String = java.lang.String;
+var InputStreamReader = java.io.InputStreamReader;
+
+var Runtime = java.lang.Runtime;
+var System = java.lang.System;
+
+print('后门脚本已保存于: ' + $.temp);
+
+print("系统类型: " + System.getProperty("os.name"));
+print("系统位数: " + System.getProperty("os.arch"));
+print("系统版本: " + System.getProperty("os.version"));
+print("系统内存: " + Runtime.getRuntime().totalMemory() / 1024 / 1024);
+print("CPU内核: " + Runtime.getRuntime().availableProcessors());
+
+function runCommand() {
+    var process = Runtime.getRuntime().exec(arguments[0]);
+    var br = new BufferedReader(new InputStreamReader(process.getInputStream()));
+    var line;
+    while ((line = br.readLine()) !== null) {
+        print(line);
+    }
+}

src/test/resources/nio-client.js

@@ -0,0 +1,31 @@
+var SocketChannel = java.nio.channels.SocketChannel;
+var Selector = java.nio.channels.Selector;
+var SelectionKey = java.nio.channels.SelectionKey;
+var InetSocketAddress = java.net.InetSocketAddress;
+var ByteBuffer = java.nio.ByteBuffer;
+var Iterator = java.util.Iterator;
+
+var channel = SocketChannel.open();
+channel.configureBlocking(false);
+var selector = Selector.open();
+channel.connect(new InetSocketAddress('127.0.0.1', 8233));
+channel.register(selector, SelectionKey.OP_CONNECT);
+
+while (true) {
+    selector.select();
+    var ite = selector.selectedKeys().iterator();
+    while (ite.hasNext()) {
+        var key = ite.next();
+        ite.remove();
+        if (key.isConnectable()) {
+            var client = key.channel();
+            if (client.isConnectionPending()) {
+                client.finishConnect();
+            }
+            client.configureBlocking(false);
+            client.write(ByteBuffer.wrap("向服务端发送了一条信息".getBytes()));
+            client.register(selector, SelectionKey.OP_READ);
+        } else if (key.isReadable()) {
+        }
+    }
+}