添加获取优惠券信息方法

data.go

@@ -0,0 +1,106 @@
+package couponrpc
+
+import (
+	"encoding/json"
+	"errors"
+	"strconv"
+	"time"
+
+	"git.tetele.net/tgo/crypter"
+	"github.com/golang/protobuf/proto"
+)
+
+func SetResData(data interface{}, res *CouponResponse) {
+	res_data_json, err := json.Marshal(data)
+	if err == nil {
+
+		encryData := crypter.DesEn(string(res_data_json), DES_KEY)
+
+		now_str := strconv.FormatInt(time.Now().Unix(), 10)
+
+		res_sign := Sign(encryData, now_str)
+
+		res.Data = proto.String(encryData)
+		res.Time = proto.String(now_str)
+		res.Sign = proto.String(res_sign)
+	}
+
+}
+
+func SetReqData(arg interface{}) (*CouponRequest, error) {
+	data_json, err := json.Marshal(arg)
+	if err != nil {
+		return nil, err
+	}
+
+	now_int64 := time.Now().Unix()
+
+	encryData := crypter.DesEn(string(data_json), DES_KEY)
+
+	now := strconv.FormatInt(now_int64, 10)
+
+	sign := Sign(encryData, now)
+
+	return &CouponRequest{proto.String(encryData), proto.String(now), proto.String(sign), nil}, nil
+
+}
+
+func GetReqData(req *CouponRequest) (string, error) {
+	res_data := req.GetData()
+
+	if res_data != "" {
+
+		time_int64, err := strconv.ParseInt(req.GetTime(), 10, 64)
+		if err != nil {
+			return "", err
+		}
+
+		now_int64 := time.Now().Unix()
+
+		if now_int64-time_int64 > 10 || time_int64-now_int64 > 10 {
+			//时间误差前后10秒，返回
+			return "", errors.New("返回时间错误")
+		}
+
+		check_sign := CheckSign(req.GetSign(), res_data, req.GetTime())
+		if !check_sign {
+			return "", errors.New("返回数据签名错误")
+		}
+
+		//解密
+		return crypter.DesDe(res_data, DES_KEY), nil
+
+	}
+
+	return "", nil
+}
+
+func GetResData(res *CouponResponse) (string, error) {
+	res_data := res.GetData()
+
+	if res_data != "" {
+
+		time_int64, err := strconv.ParseInt(res.GetTime(), 10, 64)
+		if err != nil {
+			return "", err
+		}
+
+		now_int64 := time.Now().Unix()
+
+		if now_int64-time_int64 > 10 || time_int64-now_int64 > 10 {
+			//时间误差前后10秒，返回
+			return "", errors.New("返回时间错误")
+		}
+
+		check_sign := CheckSign(res.GetSign(), res_data, res.GetTime())
+		if !check_sign {
+			return "", errors.New("返回数据签名错误")
+		}
+
+		//解密
+		return crypter.DesDe(res_data, DES_KEY), nil
+
+	}
+
+	return "", nil
+}

get_coupon.go

@@ -0,0 +1,55 @@
+package couponrpc
+
+import (
+	"encoding/json"
+	"errors"
+)
+
+func GetCouponInfo(dbname,couponId string, url ...string) (string, error) {
+
+	if dbname == "" {
+		return "", errors.New("参数错误")
+	}
+
+	conn, err := rpc_server_conn(url...)
+
+	if err != nil {
+		return "", err
+	}
+	defer conn.Close()
+
+	arg := map[string]string{
+		"dbname": dbname,
+		"coupon_id": couponId,
+	}
+
+	req, err := SetReqData(arg)
+	if err != nil {
+		return "", err
+	}
+	res := &CouponResponse{}
+
+	err = conn.GetCouponInfo(req, res)
+
+	if err != nil {
+		return "", err
+	}
+
+	res_data_de, err := GetResData(res)
+	if err != nil {
+		return "", err
+	}
+
+	var bankCode string
+	err = json.Unmarshal([]byte(res_data_de),&bankCode)
+
+	if err != nil {
+		return "", err
+	}
+
+	if res_data_de == "" {
+		return "", nil
+	}
+
+	return bankCode, nil
+}