- big big refactor.

platformapi/dadaapi/callback.go

@@ -0,0 +1,81 @@
+package dadaapi
+
+import (
+	"crypto/md5"
+	"fmt"
+	"sort"
+	"strings"
+
+	"github.com/fatih/structs"
+
+	"git.rosy.net.cn/baseapi"
+	"git.rosy.net.cn/baseapi/utils"
+)
+
+const (
+	ResponseHttpCodeSuccess    = 200
+	ResponseHttpCodeGeneralErr = 555
+)
+
+type CallbackMsg struct {
+	ClientID     string `json:"client_id"`
+	OrderID      string `json:"order_id"`
+	OrderStatus  int    `json:"order_status"`
+	CancelReason string `json:"cancel_reason"`
+	CancelFrom   int    `json:"cancel_from"`
+	UpdateTime   int    `json:"update_time"`
+	Signature    string `json:"signature"`
+	DmID         int    `json:"dm_id"`
+	DmName       string `json:"dm_name"`
+	DmMobile     string `json:"dm_mobile"`
+}
+
+type CallbackResponse struct {
+	Code  int
+	Dummy string `json:"dummy"`
+}
+
+var (
+	SuccessResponse = &CallbackResponse{Code: ResponseHttpCodeSuccess}
+	FailedResponse  = &CallbackResponse{Code: ResponseHttpCodeGeneralErr}
+)
+
+func (a *API) signCallbackParams(mapData map[string]interface{}) string {
+	values := make([]string, 0)
+	for _, k := range []string{"client_id", "order_id", "update_time"} {
+		values = append(values, fmt.Sprint(mapData[k]))
+	}
+	sort.Strings(values)
+
+	finalStr := strings.Join(values, "")
+	// baseapi.SugarLogger.Debugf("sign str:%v", finalStr)
+	return fmt.Sprintf("%x", md5.Sum([]byte(finalStr)))
+}
+
+func (a *API) unmarshalData(data []byte, msg interface{}) (callbackResponse *CallbackResponse) {
+	err := utils.UnmarshalUseNumber(data, msg)
+	if err != nil {
+		return FailedResponse
+	}
+	return nil
+}
+
+func (a *API) CheckCallbackValidation(mapData map[string]interface{}) (callbackResponse *CallbackResponse) {
+	sign := a.signCallbackParams(mapData)
+	if remoteSign, _ := mapData[signKey].(string); sign != remoteSign {
+		baseapi.SugarLogger.Infof("Signature is not ok, mine:%v, get:%v", sign, remoteSign)
+		return FailedResponse
+	}
+	return nil
+}
+
+func (a *API) GetOrderCallbackMsg(data []byte) (msg *CallbackMsg, callbackResponse *CallbackResponse) {
+	msg = new(CallbackMsg)
+	if callbackResponse = a.unmarshalData(data, msg); callbackResponse != nil {
+		return nil, FailedResponse
+	}
+
+	mapData := structs.Map(msg)
+	callbackResponse = a.CheckCallbackValidation(mapData)
+	return msg, callbackResponse
+}