Iphone Remote Notifications For Provider
Provider Push notifications:
Production environment：gateway.push.apple.com port 2195;
Development environment： gateway.sandbox.push.apple.com port 2195
- You must compose the notification payload
- An alert message to display to the user
- A number to badge the application icon with
- A sound to play
- You are responsible for supplying the badge number to be displayed on the application icon.
- You should regularly connect with the feedback web server and fetch the current list of those devices that have repeatedly reported failed-delivery attempts. Then you should cease sending notifications to the devices associated with those applications.
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Simple Format
简单的notification格式：
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Enhanced Format
增强版的notification格式
Identifier:唯一标识notification
Expiry：过时的标识。正值：APN至少尝试发送notification; 0或负值：APN丢弃notification
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Format error
包错误或不完整时，APN returns an error-response packet prior to disconnecting
APN的错误反馈包的格式：
Codes in error-response packet
| Status code | Description |
| 0 | No errors encountered |
| 1 | Processing error |
| 2 | Missing device token |
| 3 | Missing topic |
| 4 | Missing payload |
| 5 | Invalid token size |
| 6 | Invalid topic size |
| 7 | Invalid payload size |
| 8 | Invalid token |
| 255 | None (unknown) |
The Feedback Service
Providers 需要周期性查询 the feedback service 获取所有应用的 device tokens, Device tokens从 topic获取;
Production feedback service:feedback.push.apple.com port2196;
Sandbox feedback service:feedback.sandbox.push.apple.com, port 2196
使用 TLS (or SSL)建立连接，一旦建立连接，仅需读取所有feedback service所有数据，数据格式：
Timestamp：应用不在设备上的时间，从1970开始的秒数
