Android Socket連接到比特幣節點

Question

我無法在Android上使用簡單的Java套接字從比特幣節點獲得響應。 我發送版本消息並等待響應，但未返回任何內容。 代碼很簡單：

private void connect(Peer peer) {
    Log.i(App.TAG, "connect to: " + peer.ip + ":8333");

    InetSocketAddress address = new InetSocketAddress(peer.ip, 8333);
    Socket socket = new Socket();
    try {
        socket.connect(address, 10000);

        OutputStream out = socket.getOutputStream();
        InputStream in = socket.getInputStream();

        VersionMessage versionMessage = new VersionMessage();
        writeMessage(versionMessage, out);

        readMessage(in);

        Log.i(App.TAG, "Shutting down....");
        out.close();
        in.close();
        socket.close();

    } catch (IOException e) {
        Log.i(App.TAG, "Socket failed to conenct");
    }
}

private void writeMessage(BaseMessage message, OutputStream out) {
    Log.i(App.TAG, "writeMessage: " + message.getCommandName());

    byte[] header   = message.getHeader();
    byte[] payload  = message.getPayload();

    try {
        Log.i(App.TAG,  "header: " + Util.bytesToHexString(header));
        Log.i(App.TAG,  "payload: " + Util.bytesToHexString(payload));

        out.write(header);
        out.write(payload);
    } catch (IOException e) {
        Log.i(App.TAG, "Failed to write message");
    }

}

private void readMessage(InputStream in) throws IOException {
    Log.i(App.TAG, "readMessage");

    while (true) {
        int b = in.read();
        Log.i(App.TAG, "read: " + b);

        if (b == -1) {
            Log.i(App.TAG, "END OF CONNECTION!");
            break;
        }

        response.add(b);

    }
}

該應用程序的日志如下：

connect to: 52.88.14.46:8333
writeMessage: version
header: f9beb4d976657273696f6e00000000006100000061000000
payload: 7c9c000001000000000000005a73788200000000524543495049454e54204950000000000000000000000000000053454e44455220495000000000000000000000000000000000006237646465346163626f657463686169000000000000000000
readMessage
read: -1
END OF CONNECTION!
Shutting down....

這是項目的鏈接： https : //github.com/boetchain/android-bitcoin-node

Answer 1

checkSum字段是必填字段，其他節點將忽略沒有有效校驗和的傳入消息。