xpggame/modules/pay/base/base.go

package base

import (
	"encoding/json"
	"errors"
	"fmt"
	"net/http"
	"net/url"
	"reflect"
	"server/modules/pay/values"
	"server/pb"
	"strings"

	"github.com/gin-gonic/gin"
	"github.com/gogo/protobuf/proto"
	"github.com/liangdas/mqant/log"
)

type HttpType int

const (
	HttpTypeInvalid = iota
	HttpTypeJson
	HttpTypeForm
	HttpTypeAll
)

type Base struct {
	Channel         values.PayWay
	PayReq          *pb.InnerRechargeReq
	WithdrawReq     *pb.InnerWithdrawReq
	SignKey         string
	ShouldSignUpper bool
	HttpType        HttpType
	ReqURL          string
	Opt             int // 1支付 2退出
	Status          int // 返回的状态
	Resp            interface{}
	CallbackReq     interface{}
	CallbackResp    CallbackResp
	SignPassStr     []string // 不参与签名的字段
	WhiteIPs        []string // ip白名单
	Sub
	C *gin.Context
}

type CallbackResp struct {
	Msg         string
	OrderID     string
	APIOrderID  string
	FailMessage string
	Success     bool
}

type Sub interface {
	PackHeader(header http.Header)   // 生成请求头
	PackReq() interface{}            // 生成支付请求体
	GetResp() (proto.Message, error) // 获取返回
	CheckSign(str string) bool       // 验签同时给callbackresp赋值
}

func NewRechargeBase(req *pb.InnerRechargeReq) *Base {
	values.PackPay(req)
	base := &Base{
		Channel: values.PayWay(req.Channel),
		PayReq:  req,
		Opt:     1,
	}
	return base
}

func NewWithdrawBase(req *pb.InnerWithdrawReq) *Base {
	values.PackWithdraw(req)
	base := &Base{
		Channel:     values.PayWay(req.Channel),
		WithdrawReq: req,
		Opt:         2,
	}
	return base
}

func NewCallbackBase(opt int) *Base {
	base := &Base{
		Opt: opt,
	}
	return base
}

func (b *Base) PackHeader(header http.Header) {
	switch b.HttpType {
	case HttpTypeJson:
		header.Set("Content-Type", "application/json")
	case HttpTypeForm:
		header.Set("Content-Type", "application/x-www-form-urlencoded")
	}
	b.Sub.PackHeader(header)
}

func (b *Base) Req() ([]byte, error) {
	send := b.Sub.PackReq()
	reqData := b.PackReq(send)
	log.Debug("Req to:%v,req:%v", b.ReqURL, reqData)
	req, err := http.NewRequest("POST", b.ReqURL, strings.NewReader(reqData))
	if err != nil {
		log.Error("err:%v", err)
		return nil, errors.New("pay fail")
	}
	b.PackHeader(req.Header)
	b.Status = values.Post(req, b.Resp)
	ret, err := b.Sub.GetResp()
	if err != nil {
		log.Error("err:%v", err)
		return nil, err
	}
	data, _ := proto.Marshal(ret)
	return data, nil
}

func (b *Base) PackReq(send interface{}) string {
	ref := reflect.ValueOf(send)
	reft := reflect.TypeOf(send)
	if ref.Kind() == reflect.Ptr {
		ref = ref.Elem()
		reft = reft.Elem()
	}
	switch b.HttpType {
	case HttpTypeJson:
		reqData, _ := json.Marshal(send)
		return string(reqData)
	case HttpTypeForm:
		data := url.Values{}
		for i := 0; i < ref.NumField(); i++ {
			if ref.Field(i).IsZero() {
				continue
			}
			data.Set(reft.Field(i).Tag.Get("json"), fmt.Sprintf("%v", ref.Field(i).Interface()))
		}
		return data.Encode()
	}
	return ""
}