C# C语言中的Apple推送通知服务器端#

我是.net新手，在C#中做apn服务器端。我使用下面的代码将消息推送到苹果服务器

    private void pushMessage()
    {
        int port = 2195;
        String deviceID = "4564c705 63b371aa 3811699e 1e4ac3d2 ba592b27 f2a5a613 d25cd035 xx213e54";
        String hostname = "gateway.sandbox.push.apple.com";     // TEST
        //String hostname = "gateway.push.apple.com";           // REAL

        //        @"cert.p12";
        String certificatePath = HttpContext.Current.Server.MapPath("Certi.p12");
        //X509Certificate2 clientCertificate = new X509Certificate2(certificatePath, "");

        X509Certificate2 clientCertificate = new X509Certificate2(System.IO.File.ReadAllBytes(certificatePath), "", X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.Exportable);

        X509Certificate2Collection certificatesCollection = new X509Certificate2Collection(clientCertificate);
        TcpClient client = new TcpClient(hostname, port);

        // _apnsStream = new SslStream(_apnsClient.GetStream(), false, validateServerCertificate, SelectLocalCertificate);
        //SslStream sslStream = new SslStream(client.GetStream(), false, new RemoteCertificateValidationCallback(ValidateServerCertificate),null);

        SslStream sslStream = new SslStream(client.GetStream(), false, validateServerCertificate, SelectLocalCertificate);
        try
        {
            sslStream.AuthenticateAsClient(hostname, certificatesCollection, SslProtocols.Default, false);
        }
        catch (Exception e)
        {
            throw (e);
            client.Close();
            return;
        }

        MemoryStream memoryStream = new MemoryStream();
        BinaryWriter writer = new BinaryWriter(memoryStream);
        writer.Write((byte)0);  //The command
        writer.Write((byte)0);  //The first byte of the deviceId length (big-endian first byte)
        writer.Write((byte)32); //The deviceId length (big-endian second byte)

        writer.Write(HexStringToByteArray(deviceID.ToUpper()));
        String payload = "{\"aps\":{\"alert\":\"hello\",\"badge\":0,\"sound\":\"default\"}}";
        writer.Write((byte)0);
        writer.Write((byte)payload.Length);
        byte[] b1 = System.Text.Encoding.UTF8.GetBytes(payload);
        writer.Write(b1);
        writer.Flush();
        byte[] array = memoryStream.ToArray();
        sslStream.Write(array);
        sslStream.Flush();
        client.Close();
    }

    private string HexStringToByteArray(string p)
    {
        throw new NotImplementedException();
    }

在执行过程中，出现类似“调用SSPI失败，请参阅内部异常”的错误

---

我在这里做错了或错过了什么。windows中是否需要安装任何证书？请帮助我。

我在PushNotification.class文件中更改了代码

_certificate = string.IsNullOrEmpty(p12FilePassword)? new X509Certificate2(File.ReadAllBytes(p12File)): new X509Certificate2(File.ReadAllBytes(p12File), p12FilePassword);

与

所以试试

SslStream sslStream = new SslStream(client.GetStream(), false,
    new RemoteCertificateValidationCallback(ValidateServerCertificate), null);

....

public static bool ValidateServerCertificate(object sender,
                                             X509Certificate certificate,
                                             X509Chain chain,
                                             SslPolicyErrors sslPolicyErrors)
{
  if (sslPolicyErrors == SslPolicyErrors.None)
    return true;

  gerarLog("Certificate error: " + sslPolicyErrors);

  // Do not allow this client to communicate with unauthenticated servers.
  return false;
}

public static byte[] HexStringToByteArray(string hexString)
{
  byte[] HexAsBytes = new byte[hexString.Length / 2];
  for (int index = 0; index < HexAsBytes.Length; index++)
  {
    string byteValue = hexString.Substring(index * 2, 2);
    HexAsBytes[index] = byte.Parse(byteValue, NumberStyles.HexNumber, CultureInfo.InvariantCulture);
  }
  return HexAsBytes;
}

SslStream SslStream=新的SslStream（client.GetStream（），false，
新的RemoteCertificateValidationCallback（ValidateServerCertificate），null）；
....
公共静态bool ValidateServerCertificate（对象发送方，
X509证书，
X509链条，
SslPolicyErrors SslPolicyErrors）
{
如果（sslPolicyErrors==sslPolicyErrors.None）
返回true；
gerarLog（“证书错误：+sslPolicyErrors”）；
//不允许此客户端与未经身份验证的服务器通信。
返回false；
}
公共静态字节[]HexStringToByteArray（字符串hexString）
{
byte[]HexAsBytes=新字节[hexString.Length/2]；
for（int index=0；index

您需要单击查看详细信息…并告诉我们内部异常详细信息是什么。您的代码也有一些问题-例如您的

捕获

是无用的-它只会丢失堆栈跟踪，并且

抛出（e）

之后的任何代码都不会执行（举几个例子）。我现在要做什么？请简单解释一下。看一看。OP为他们如何解决同一问题提供了答案。我强烈建议使用，因为他们有工作示例，您可以简单地获取和使用…您知道您的异常处理程序是错误的，对吗？客户端永远不会关闭，因为

抛出（e）执行从异常处理程序的即时退出，因此将永远不会调用以下两行，并且异常将冒泡。标记为低质量。请改进一下。
SslStream sslStream = new SslStream(client.GetStream(), false,
    new RemoteCertificateValidationCallback(ValidateServerCertificate), null);

....

public static bool ValidateServerCertificate(object sender,
                                             X509Certificate certificate,
                                             X509Chain chain,
                                             SslPolicyErrors sslPolicyErrors)
{
  if (sslPolicyErrors == SslPolicyErrors.None)
    return true;

  gerarLog("Certificate error: " + sslPolicyErrors);

  // Do not allow this client to communicate with unauthenticated servers.
  return false;
}

public static byte[] HexStringToByteArray(string hexString)
{
  byte[] HexAsBytes = new byte[hexString.Length / 2];
  for (int index = 0; index < HexAsBytes.Length; index++)
  {
    string byteValue = hexString.Substring(index * 2, 2);
    HexAsBytes[index] = byte.Parse(byteValue, NumberStyles.HexNumber, CultureInfo.InvariantCulture);
  }
  return HexAsBytes;
}