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)