Add InitAPNSClient func.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

gorush/notification.go

@@ -3,6 +3,7 @@ package gopush
 import (
 	"github.com/google/go-gcm"
 	apns "github.com/sideshow/apns2"
+	"github.com/sideshow/apns2/certificate"
 	"github.com/sideshow/apns2/payload"
 	"log"
 )
@@ -58,6 +59,26 @@ type RequestPushNotification struct {
 	IDs []uint64 `json:"seq_id,omitempty"`
 }
 
+func InitAPNSClient() {
+	if PushConf.Ios.Enabled {
+		var err error
+
+		CertificatePemIos, err = certificate.FromPemFile(PushConf.Ios.PemKeyPath, "")
+
+		if err != nil {
+			log.Println("Cert Error:", err)
+
+			return
+		}
+
+		if PushConf.Ios.Production {
+			ApnsClient = apns.NewClient(CertificatePemIos).Production()
+		} else {
+			ApnsClient = apns.NewClient(CertificatePemIos).Development()
+		}
+	}
+}
+
 func pushNotification(notification RequestPushNotification) bool {
 	var (
 		success bool