苹果推送通知服务

Written .

架构原理

APNS

  1. 应用启用推送通知功能，需要用户确认；
  2. 应用收到设备识别ID（device token），相当于接收推送通知的地址；
  3. 应用将设备识别ID发送到你开发的服务器；
  4. 当有推送通知的需要时，你就可以通过你开发的服务组件发送信息到苹果的服务器上；
  5. 苹果推送通知服务将信息推送到用户的设备上。

苹果推送通知服务要注意的

  • 一台iPhone或iPad，苹果推送通知服务不能在模拟器上工作，你必须在真机上测试
  • 有付费开通的iOS 开发者会员资格
  • 服务器端要安装苹果发放的证书
  • 推送不保证成功，也无法知道送达消息的状态

客户端教程

Apple Push Notification Services in iOS 6 Tutorial

.Net下证书的转换

到这一步时我们已经有的证书文件
* .cerSigningRequest证书请求文件 * .p12私钥文件 * .cerSSL证书

APNS所要使用的连接证书

  1. 将apsdeveloperidentity.cer转换成apsdeveloperidentity.pem格式 openssl x509 -in aps_developer_identity.cer -inform DER -out aps_developer_identity.pem -outform PEM
  2. 将p12格式的私钥转换成pem openssl pkcs12 -nocerts -out Push_Noenc.pem -in Push.p12
  3. 创建p12文件 openssl pkcs12 -export -in aps_developer_identity.pem -inkey Push_Noenc.pem -certfile Push.certSigningRequest -name "aps_developer_identity" -out aps_developer_identity.p12

    .Net的下的解决方案

第三方开源类库APNS-Sharp

//如果你使用沙盒方式请赋值true,否则请赋值false
bool sandbox = true;

//输入你的设备令牌在此
string testDeviceToken = "ccc4c058e6a0452162a2abd45024b21b7afc2cb2eaf7d09889a6ebb24a72648e";

//输入你在苹果授权网站上获得的p12证书文件
string p12File = "aps_developer_identity.p12";

//p12证书密码
string p12FilePassword = "Passw0rd";

//Number of notifications to send
int count = 3;

//Number of milliseconds to wait in between sending notifications in the loop
// This is just to demonstrate that the APNS connection stays alive between messages
int sleepBetweenNotifications = 15000;


//Actual Code starts below:
//--------------------------------

string p12Filename = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, p12File);

NotificationService service = new NotificationService(sandbox, p12Filename, p12FilePassword, 1);

service.SendRetries = 5; //5 retries before generating notificationfailed event
service.ReconnectDelay = 5000; //5 seconds

service.Error += new NotificationService.OnError(service_Error);
service.NotificationTooLong += new NotificationService.OnNotificationTooLong(service_NotificationTooLong);

service.BadDeviceToken += new NotificationService.OnBadDeviceToken(service_BadDeviceToken);
service.NotificationFailed += new NotificationService.OnNotificationFailed(service_NotificationFailed);
service.NotificationSuccess += new NotificationService.OnNotificationSuccess(service_NotificationSuccess);
service.Connecting += new NotificationService.OnConnecting(service_Connecting);
service.Connected += new NotificationService.OnConnected(service_Connected);
service.Disconnected += new NotificationService.OnDisconnected(service_Disconnected);

//The notifications will be sent like this:
//      Testing: 1...
//      Testing: 2...
//      Testing: 3...
// etc...
for (int i = 1; i <= count; i++)
{
    //Create a new notification to send
    Notification alertNotification = new Notification(testDeviceToken);

    alertNotification.Payload.Alert.Body = string.Format("Testing {0}...", i);
    alertNotification.Payload.Sound = "default";
    alertNotification.Payload.Badge = i;

    //Queue the notification to be sent
    if (service.QueueNotification(alertNotification))
        Console.WriteLine("Notification Queued!");
    else
        Console.WriteLine("Notification Failed to be Queued!");

    //Sleep in between each message
    if (i < count)
    {
        Console.WriteLine("Sleeping " + sleepBetweenNotifications + " milliseconds before next Notification...");
        System.Threading.Thread.Sleep(sleepBetweenNotifications);
    }
}

Console.WriteLine("Cleaning Up...");

//First, close the service.  
//This ensures any queued notifications get sent befor the connections are closed
service.Close();

//Clean up
service.Dispose();

Console.WriteLine("Done!");
Console.WriteLine("Press enter to exit...");
Console.ReadLine();
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