key_performance_indicators/middleware/wechatapp/wechatcallback/response.go

package wechatcallback

import (
	"fmt"
	"key_performance_indicators/middleware/wechatapp/wechatstatice"
	"key_performance_indicators/models/wechatcallback"
	"key_performance_indicators/overall"
	"key_performance_indicators/overall/publicmethod"
	"strconv"
	"time"

	"github.com/gin-gonic/gin"
)

// 企业微信回调入口
func (a *ApiRouter) Index(c *gin.Context) {
	outputCont := publicmethod.MapOut[string]()
	outputCont["index"] = "企业微信回调入口"
	publicmethod.Result(0, outputCont, c)
}

/*
*
@ 作者: 秦东
@ 时间: 2022-09-27 11:33:29
@ 功能: 回调入口
@ 参数

	#MsgSignature		企业微信加密签名，msg_signature计算结合了企业填写的token、请求中的timestamp、nonce、加密的消息体。
	#Timestamp			时间戳。与nonce结合使用，用于防止请求重放攻击。
	#Nonce				随机数。与timestamp结合使用，用于防止请求重放攻击。
	#Echostr				加密的字符串。需要解密得到消息内容明文，解密后有random、msg_len、msg、receiveid四个字段，其中msg即为消息内容明文

@ 返回值

	#
*/
func (a *ApiRouter) CallbackMessageApi(c *gin.Context) {
	MsgSignature := c.Query("msg_signature") //企业微信加密签名，msg_signature计算结合了企业填写的token、请求中的timestamp、nonce、加密的消息体。
	Timestamp := c.Query("timestamp")        //时间戳。与nonce结合使用，用于防止请求重放攻击。
	Nonce := c.Query("nonce")                //随机数。与timestamp结合使用，用于防止请求重放攻击。
	Echostr := c.Query("echostr")            //加密的字符串。需要解密得到消息内容明文，解密后有random、msg_len、msg、receiveid四个字段，其中msg即为消息内容明文
	EchostrType := c.Query("type")
	SystemApp := c.Query("systemapp")

	if EchostrType == "" {
		EchostrType = "json"
	}
	if SystemApp == "" {
		SystemApp = "kpi"
	}
	// fmt.Printf("(1)SystemApp---------->%v--->EchostrType---------->%v--->MsgSignature---------->%v--->Timestamp---------->%v--->Nonce---------->%v--->Echostr---------->%v\n", SystemApp, EchostrType, MsgSignature, Timestamp, Nonce, Echostr)

	var basicValueCallback CallBackData //企业微信回调基础参数
	basicValueCallback.MsgSignature = MsgSignature
	basicValueCallback.Timestamp = Timestamp
	basicValueCallback.Nonce = Nonce
	basicValueCallback.DataType = EchostrType
	basicValueCallback.SystemApp = SystemApp
	var msgStr string
	if Echostr != "" {
		//Api地址验证
		basicValueCallback.Echostr = Echostr
		msgStr = basicValueCallback.VerificationUrl()
		c.String(200, msgStr)
	} else {
		//回调事件
		fmt.Printf("回调事件")
	}
	// fmt.Printf("(3)CallbackMessageApi---------->%v------------------->%v\n", msgStr, basicValueCallback)

	// publicmethod.Result(1, basicValueCallback, c, msgStr)
}

// 验证URL
func (c *CallBackData) VerificationUrl() (msg string) {
	// wecahtCpt := WechatVerification()
	// timestampStr := strconv.FormatInt(c.Timestamp, 10)
	// echoStr, cryptErr := wecahtCpt.VerifyURL(c.MsgSignature, timestampStr, c.Nonce, c.Echostr)

	// if nil != cryptErr {
	// 	fmt.Println("verifyUrl fail", cryptErr)
	// }
	// msg = string(echoStr)
	// jsonk, _ := json.Marshal(c)
	// fmt.Printf("json--------->%v\n", string(jsonk))
	switch c.DataType {
	case "json":
		wxcptJson := wechatstatice.WechatDecryptJson(c.SystemApp)
		echoStr, cryptErr := wxcptJson.VerifyURL(c.MsgSignature, c.Timestamp, c.Nonce, c.Echostr)
		fmt.Printf("(2)wxcptJson---------->%v------------echoStr------->%v----cryptErr---->%v-----MsgSignature--->%v----Timestamp---->%v-----Nonce--->%v-----Echostr--->%v\n", wxcptJson, string(echoStr), cryptErr, c.MsgSignature, c.Timestamp, c.Nonce, c.Echostr)
		msg = string(echoStr)

		var callbackLog wechatcallback.CallbackLog
		callbackLog.MsgSignature = c.MsgSignature
		TimestampInt, _ := strconv.ParseInt(c.Timestamp, 10, 64)
		callbackLog.TimeStamp = TimestampInt
		callbackLog.Nonce = c.Nonce
		callbackLog.Echostr = c.Echostr
		callbackLog.Xmlstr = string(echoStr)
		// callbackLog.Reqdata = string(reqData)
		callbackLog.AddTime = time.Now().Unix()
		overall.CONSTANT_DB_WECHAT_LOG.Create(&callbackLog)
	default:
		wxcptXml := wechatstatice.WechatDecryptXml(c.SystemApp)
		echoStr, cryptErr := wxcptXml.VerifyURL(c.MsgSignature, c.Timestamp, c.Nonce, c.Echostr)
		fmt.Printf("wxcptXml---------->%v------------echoStr------->%v----cryptErr---->%v-----MsgSignature--->%v----Timestamp---->%v-----Nonce--->%v-----Echostr--->%v\n", wxcptXml, string(echoStr), cryptErr, c.MsgSignature, c.Timestamp, c.Nonce, c.Echostr)
		msg = string(echoStr)
		var callbackLog wechatcallback.CallbackLog
		callbackLog.MsgSignature = c.MsgSignature
		TimestampInt, _ := strconv.ParseInt(c.Timestamp, 10, 64)
		callbackLog.TimeStamp = TimestampInt
		callbackLog.Nonce = c.Nonce
		callbackLog.Echostr = c.Echostr
		callbackLog.Xmlstr = string(echoStr)
		// callbackLog.Reqdata = string(reqData)
		callbackLog.AddTime = time.Now().Unix()
		overall.CONSTANT_DB_WECHAT_LOG.Create(&callbackLog)
	}

	return
	// fmt.Println(string(echoStr))
	// fmt.Print(string(echoStr))

}