Sending Push notifications to iOS devices using PushSharp and C#

Question

I have been struggling to get push notifications to send from a C# console application. I have a working p12 certificate from apple's development website and i also have the device token for the device i want to send the notification to. Below is the code i am using to try and send the notification. I am using an older version of PushSharp (2.2.1.0) as I am using the same console application to send android push notifications which works 100%.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using PushSharp;
using PushSharp.Android;
using PushSharp.Apple;
using PushSharp.Core;
using System.Data;
using System.Data.SqlClient;
using System.IO;
using System.Net.Sockets;

namespace PushNotificationServiceTradeway
{
class Program
{


    static void Main(string[] args)
    {


        var push = new PushBroker();
        push.OnNotificationSent += NotificationSent;
        push.OnChannelException += ChannelException;
        push.OnServiceException += ServiceException;
        push.OnNotificationFailed += NotificationFailed;
        push.OnDeviceSubscriptionExpired += DeviceSubscriptionExpired;
        push.OnDeviceSubscriptionChanged += DeviceSubscriptionChanged;
        push.OnChannelCreated += ChannelCreated;
        push.OnChannelDestroyed += ChannelDestroyed;


        //Registering the Apple Service and sending an iOS Notification
        var appleCert = File.ReadAllBytes("Certificate");
        push.RegisterAppleService(new ApplePushChannelSettings(appleCert, ""));
        push.QueueNotification(new AppleNotification()
                                   .ForDeviceToken("Phone_Token")
                                   .WithAlert("Hello World!")
                                   .WithBadge(7));

        push.StopAllServices();

    }


    static void DeviceSubscriptionChanged(object sender,
string oldSubscriptionId, string newSubscriptionId, INotification notification)
    {
        Console.WriteLine(notification);
    }

    //this even raised when a notification is successfully sent
    static void NotificationSent(object sender, INotification notification)
    {
        Console.WriteLine(notification);
    }

    //this is raised when a notification is failed due to some reason
    static void NotificationFailed(object sender,
    INotification notification, Exception notificationFailureException)
    {
         Console.WriteLine(notificationFailureException);
    }

    //this is fired when there is exception is raised by the channel
    static void ChannelException
        (object sender, IPushChannel channel, Exception exception)
    {
        Console.WriteLine(exception);
    }

    //this is fired when there is exception is raised by the service
    static void ServiceException(object sender, Exception exception)
    {
        Console.WriteLine(exception);
    }

    //this is raised when the particular device subscription is expired
    static void DeviceSubscriptionExpired(object sender,
    string expiredDeviceSubscriptionId,
        DateTime timestamp, INotification notification)
    {
        Console.WriteLine(notification);
    }

    //this is raised when the channel is destroyed
    static void ChannelDestroyed(object sender)
    {
        Console.WriteLine(sender);
    }

    //this is raised when the channel is created
    static void ChannelCreated(object sender, IPushChannel pushChannel)
    {
        Console.WriteLine(pushChannel);
    }

}
}

But when i run the application to send the notification it hangs and times out after a minute with the following error in the console

System.Net.Sockets.Socketexception (0x80004005) a connection attempt failed bacause the connected party did not properly respond after a period of time or established connection failed because connected host has failed to respond 17.172.232.45:2196 at System.Net.Sockets.TcpClient..ctor(String hostname, int32 port) at Pushsharp.Apple.FeedbackService.Run(ApplePushChannelSetings, CancellationToken cancelToken) at PushSharp.Apple.ApplePushService.(ApplePushService)c_AnonStorey0.()m_1(object state)

Any help or advice on how to fix/solve this would be appreciated.

Answer 1

Ok found the fix, it was the firewall settings at my company blocking access to Apple's push notification servers.