Appleプッシュ通知プロバイダーをC＃で記述する方法

Question

Appleには、プロバイダがサービスに接続して通信する方法に関する文書が本当にありませんでした（執筆時点-2009）。プロトコルについて混乱しています。これはC＃でどのように行われますか？

Answer 1

実際のコード例：

int port = 2195;
String hostname = "gateway.sandbox.push.apple.com";

//load certificate
string certificatePath = @"cert.p12";
string certificatePassword = "";
X509Certificate2 clientCertificate = new X509Certificate2(certificatePath, certificatePassword);
X509Certificate2Collection certificatesCollection = new X509Certificate2Collection(clientCertificate);

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

try
{
    sslStream.AuthenticateAsClient(hostname, certificatesCollection, SslProtocols.Tls, true);
}
catch (AuthenticationException ex)
{
    client.Close();
    return;
}

// Encode a test message into a byte array.
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)

String deviceId = "DEVICEIDGOESHERE";
writer.Write(ToByteArray(deviceId.ToUpper()));

String payload = "{\"aps\":{\"alert\":\"I like spoons also\",\"badge\":14}}";

writer.Write((byte)0); //First byte of payload length; (big-endian first byte)
writer.Write((byte)payload.Length); //payload length (big-endian second byte)

byte[] b1 = System.Text.Encoding.UTF8.GetBytes(payload);
writer.Write(b1);
writer.Flush();

byte[] array = memoryStream.ToArray();
sslStream.Write(array);
sslStream.Flush();

// Close the client connection.
client.Close();

Answer 2

これが（少し）関連することを願っていますが、Java用にうまく作成したので、概念的にはC＃に非常に似ています（おそらくSSLのものを除きますが、変更するのは難しいことではありません。以下はサンプルです）メッセージのペイロードと暗号の設定：

    int port = 2195;
    String hostname = "gateway.sandbox.push.apple.com";


    char []passwKey = "<keystorePassword>".toCharArray();
    KeyStore ts = KeyStore.getInstance("PKCS12");
    ts.load(new FileInputStream("/path/to/apn_keystore/cert.p12"), passwKey);

    KeyManagerFactory tmf = KeyManagerFactory.getInstance("SunX509");
    tmf.init(ts,passwKey);
    SSLContext sslContext = SSLContext.getInstance("TLS");
    sslContext.init(tmf.getKeyManagers(), null, null);
    SSLSocketFactory factory =sslContext.getSocketFactory();
    SSLSocket socket = (SSLSocket) factory.createSocket(hostname,port); // Create the ServerSocket
    String[] suites = socket.getSupportedCipherSuites();
    socket.setEnabledCipherSuites(suites);
    //start handshake

    socket.startHandshake();


    // Create streams to securely send and receive data to the server
    InputStream in = socket.getInputStream();
    OutputStream out = socket.getOutputStream();



    // Read from in and write to out...
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    baos.write(0); //The command
    System.out.println("First byte Current size: " + baos.size());

    baos.write(0); //The first byte of the deviceId length    
    baos.write(32); //The deviceId length

    System.out.println("Second byte Current size: " + baos.size());

    String deviceId = "<heaxdecimal representation of deviceId";
    baos.write(hexStringToByteArray(deviceId.toUpperCase()));
    System.out.println("Device ID: Current size: " + baos.size());


    String payload = "{\"aps\":{\"alert\":\"I like spoons also\",\"badge\":14}}";
    System.out.println("Sending payload: " + payload);
    baos.write(0); //First byte of payload length;
    baos.write(payload.length());
    baos.write(payload.getBytes());

    out.write(baos.toByteArray());
    out.flush();

    System.out.println("Closing socket..");
    // Close the socket
    in.close();
    out.close();

}

もう一度、C＃ではなく、少なくともAppleが提供する粗末なObjCサンプルよりも近い。

Answer 3

Githubで入手できる最高の APNSSharp プロジェクト。ほんの数分でうまくいきました！

Answer 4

GitHubの PushSharp ライブラリを使用できます。

すべてのプロジェクトで使用しています

Answer 5

  public ActionResult ios()
    {
        string message = string.Empty;

        var certi = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Certificates2.p12");
        var appleCert = System.IO.File.ReadAllBytes(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Certificates2.p12"));

        ApnsConfiguration apnsConfig = new ApnsConfiguration(ApnsConfiguration.ApnsServerEnvironment.Production, appleCert, "Password");

        var apnsBroker = new ApnsServiceBroker(apnsConfig);
        apnsBroker.OnNotificationFailed += (notification, aggregateEx) =>
        {
            aggregateEx.Handle(ex =>
            {
                if (ex is ApnsNotificationException)
                {
                    var notificationException = (ApnsNotificationException)ex;
                    var apnsNotification = notificationException.Notification;
                    var statusCode = notificationException.ErrorStatusCode;
                    var inner = notificationException.InnerException;
                    message = "IOS Push Notifications: Apple Notification Failed: ID=" + apnsNotification.Identifier + ", Code=" + statusCode + ", Inner Exception" + inner;
                }
                else
                {
                    message = "IOS Push Notifications: Apple Notification Failed for some unknown reason : " + ex.InnerException;
                }
                return true;
            });
        };

        apnsBroker.OnNotificationSucceeded += (notification) =>
        {
            message = "IOS Push Notifications: Apple Notification Sent!";
        };

        apnsBroker.Start();
        try
        {
            string deviceToken = "33c2f3a13c90dc62660281913377c22066c1567e23c2ee2c728e0f936ff3ee9b";

            apnsBroker.QueueNotification(new ApnsNotification
            {
                DeviceToken = deviceToken,
                Payload = JObject.Parse("{\"aps\":{\"alert\":\" Test Message\", \"badge\":1, \"sound\":\" default\",}}")
            });
        }
        catch (Exception ex)
        {
            Console.Write(ex);
        }
        apnsBroker.Stop();

        return View(message);
    }