C# 推送信息到APNs

iPhone消息推送机制实现与探讨

class Program

    {

 

        public static DateTime? Expiration { get; set; }

 

        public static readonly DateTime DoNotStore = DateTime.MinValue;

        private static readonly DateTime UNIX_EPOCH = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);

        private static string DeviceToken = "273eeddaef02192cf4ba5b666453b258f2d2a1ad02f549105fd03fea789d809d";

        public const int DEVICE_TOKEN_BINARY_SIZE = 32;

        public const int DEVICE_TOKEN_STRING_SIZE = 64;

        public const int MAX_PAYLOAD_SIZE = 256;

        private static X509Certificate certificate;

        private static X509CertificateCollection certificates;

 

        static void Main(string[] args)

        {

            string hostIP = "gateway.sandbox.push.apple.com";//

            int port = 2195;

            string password = "ankejiaoyu";//

            string certificatepath = "aps_developer_identity.p12";//bin/debug

            string p12Filename = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, certificatepath);

 

 

            certificate = new X509Certificate2(System.IO.File.ReadAllBytes(p12Filename), password, X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.Exportable);

 

            certificates = new X509CertificateCollection();

            certificates.Add(certificate);

 

 

            TcpClient apnsClient = new TcpClient();

            apnsClient.Connect(hostIP, port);

 

            SslStream apnsStream = new SslStream(apnsClient.GetStream(), false, new RemoteCertificateValidationCallback(validateServerCertificate), new LocalCertificateSelectionCallback(selectLocalCertificate));

 

            try

            {

                //APNs已不支持SSL 3.0 

                apnsStream.AuthenticateAsClient(hostIP, certificates, System.Security.Authentication.SslProtocols.Tls, false);

            }

            catch (System.Security.Authentication.AuthenticationException ex)

            {

                Console.WriteLine("error+"+ex.Message);

            }

 

            if (!apnsStream.IsMutuallyAuthenticated)

            {

                Console.WriteLine("error:Ssl Stream Failed to Authenticate！");

            }

 

            if (!apnsStream.CanWrite)

            {

                Console.WriteLine("error:Ssl Stream is not Writable!");

                

            }

 

            Byte[] message = ToBytes();

            apnsStream.Write(message);

        }

 

        public static byte[] ToBytes()

        {

 

            // Without reading the response which would make any identifier useful, it seems silly to

            // expose the value in the object model, although that would be easy enough to do. For

            // now we'll just use zero.

            int identifier = 0;

            byte[] identifierBytes = BitConverter.GetBytes(IPAddress.HostToNetworkOrder(identifier));

 

            // APNS will not store-and-forward a notification with no expiry, so set it one year in the future

            // if the client does not provide it.

            int expiryTimeStamp = -1;//过期时间戳

            if (Expiration != DoNotStore)

            {

                //DateTime concreteExpireDateUtc = (Expiration ?? DateTime.UtcNow.AddMonths(1)).ToUniversalTime();

                DateTime concreteExpireDateUtc = (Expiration ?? DateTime.UtcNow.AddSeconds(20)).ToUniversalTime();

                TimeSpan epochTimeSpan = concreteExpireDateUtc - UNIX_EPOCH;

                expiryTimeStamp = (int)epochTimeSpan.TotalSeconds;

            }

 

            byte[] expiry = BitConverter.GetBytes(IPAddress.HostToNetworkOrder(expiryTimeStamp));

 

            byte[] deviceToken = new byte[DeviceToken.Length / 2];

            for (int i = 0; i < deviceToken.Length; i++)

                deviceToken[i] = byte.Parse(DeviceToken.Substring(i * 2, 2), System.Globalization.NumberStyles.HexNumber);

 

            if (deviceToken.Length != DEVICE_TOKEN_BINARY_SIZE)

            {

                Console.WriteLine("Device token length error！");

            }

 

            byte[] deviceTokenSize = BitConverter.GetBytes(IPAddress.HostToNetworkOrder(Convert.ToInt16(deviceToken.Length)));

            string str = "{\"aps\":{\"alert\":\"这是测试消息！！\",\"badge\":1,\"sound\":\"anke.mp3\"}}";

 

            byte[] payload = Encoding.UTF8.GetBytes(str);

 

            byte[] payloadSize = BitConverter.GetBytes(IPAddress.HostToNetworkOrder(Convert.ToInt16(payload.Length)));

            List<byte[]> notificationParts = new List<byte[]>();

            //1 Command

            notificationParts.Add(new byte[] { 0x01 }); // Enhanced notification format command

            notificationParts.Add(identifierBytes);

            notificationParts.Add(expiry);

            notificationParts.Add(deviceTokenSize);

            notificationParts.Add(deviceToken);

            notificationParts.Add(payloadSize);

            notificationParts.Add(payload);

 

            return BuildBufferFrom(notificationParts);

        }

 

        private static byte[] BuildBufferFrom(IList<byte[]> bufferParts)

        {

            int bufferSize = 0;

            for (int i = 0; i < bufferParts.Count; i++)

                bufferSize += bufferParts[i].Length;

 

            byte[] buffer = new byte[bufferSize];

            int position = 0;

            for (int i = 0; i < bufferParts.Count; i++)

            {

                byte[] part = bufferParts[i];

                Buffer.BlockCopy(bufferParts[i], 0, buffer, position, part.Length);

                position += part.Length;

            }

            return buffer;

        }

 

        private static bool validateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)

        {

            return true; // Dont care about server's cert

        }

 

        private static X509Certificate selectLocalCertificate(object sender, string targetHost, X509CertificateCollection localCertificates,

            X509Certificate remoteCertificate, string[] acceptableIssuers)

        {

            return certificate;

        }

}

PS：上面这段代码是从网上找的，做了些小改动。

来自为知笔记(Wiz)