hd/controllers/client/wx.go

package client

import (
	"fmt"
	"hudongzhuanjia/controllers"
	"hudongzhuanjia/libs/wx"
	"hudongzhuanjia/utils"
	"hudongzhuanjia/utils/define"
	"time"
)

type WxCtl struct {
	controllers.BaseCtl
}

const SignUrl = "jsapi_ticket=%s&noncestr=%s&timestamp=%d&url=%s"

type TicketCache struct {
	Url           string `json:"url"`
	Token         string `json:"token"`
	TokenExpired  int64  `json:"ticket_expired"`
	Ticket        string `json:"ticket"`
	TicketExpired int64  `json:"ticket_expired"`
}

var cache TicketCache

// 检测token是否过期
// 检测ticket是否过期
func (t *WxCtl) Ticket() {
	url := t.MustGet("url")
	nonceStr := utils.RandomStr(32)
	timestamp := time.Now().Unix()

	if cache.TokenExpired <= time.Now().Unix() {
		token, err := wx.GetTicketToken()
		t.CheckErr(err)
		if token.ErrCode != 0 {
			t.ERROR(token.ErrMsg, token.ErrCode)
		}
		cache.Token = token.AccessToken
		cache.TokenExpired = token.ExpiresIn + 7200
	}
	if cache.TicketExpired <= time.Now().Unix() {
		ticket, err := wx.GetTicket(cache.Token)
		t.CheckErr(err)
		if ticket.ErrCode != 0 {
			t.ERROR(ticket.ErrMsg, ticket.ErrCode)
		}
		cache.TicketExpired = ticket.ExpiresIn + 7200
		cache.Ticket = ticket.Ticket
	}
	query := fmt.Sprintf(SignUrl, cache.Ticket, nonceStr, timestamp, url)
	signature := utils.Sha1(query)
	t.JSON(map[string]interface{}{
		"signature": signature,
		"noncestr":  nonceStr,
		"timestamp": timestamp,
		"ticket":    cache.Ticket,
		"appid":     define.AppId,
	})
}