增加华为支付模块

package/pay/huawei/consts.go

@@ -0,0 +1,32 @@
+package huawei
+
+import (
+	"net/http"
+	"time"
+)
+
+const (
+	AuthTokenUrl     = "https://oauth-api.cloud.huawei.com/rest.php?nsp_fmt=JSON&nsp_svc=huawei.oauth2.user.getTokenInfo"
+	OrderUrl         = "https://orders-drcn.iap.hicloud.com/applications/purchases/tokens/verify"
+	LocationShanghai = "Asia/Shanghai"
+
+	RSA  = "RSA"
+	RSA2 = "RSA2"
+
+	OrderResponseOk = "0"
+	PurchaseStateOk = 0
+)
+
+func getOrderUrl(accountFlag int) string {
+	if accountFlag == 1 {
+		// site for telecom carrier
+		return "https://orders-at-dre.iap.dbankcloud.com"
+	} else {
+		// TODO: replace the (ip:port) to the real one
+		return "http://exampleserver/_mockserver_"
+	}
+
+}
+
+// default http client with 5 seconds timeout
+var RequestHttpClient = http.Client{Timeout: time.Second * 5}