Method peekRead

src/main/java/org/example/Socks5Server.java:192–213

(ByteBuffer rawBuffer, int expectedBytes)

    }

    private boolean peekRead(ByteBuffer rawBuffer, int expectedBytes) throws IOException {
        if (readBuffer == null) {
            throw new IOException("读取缓冲区未初始化");
        }

        // 检查是否有足够的数据
        if (readBuffer.remaining() < expectedBytes) {
            return false;
        }
        // 保存当前position
        int originalPosition = readBuffer.position();

        // 读取数据
        byte[] data = new byte[expectedBytes];
        readBuffer.get(data);

        this.peekPosition += expectedBytes;
        // 恢复position
        readBuffer.position(originalPosition);
        rawBuffer.put(data);
        return true;
    }

    private void handleDataTransfer(SocketChannel channel) {
        // 数据转发已经在handleConnectionRequest中启动