fix

telegram.go

@@ -1,41 +1,16 @@
 package main
 
 import (
-	"crypto/hmac"
-	"crypto/sha256"
-	"encoding/hex"
-	"net/url"
-	"sort"
-	"strings"
+	"time"
+
+	initdata "github.com/telegram-mini-apps/init-data-golang"
 )
 
-func VerifyTelegramInitData(initData, botToken string) (map[string]string, bool) {
-	values, _ := url.ParseQuery(initData)
-
-	hash := values.Get("hash")
-	values.Del("hash")
-
-	var data []string
-	for k, v := range values {
-		data = append(data, k+"="+v[0])
+func VerifyTelegramInitData(initData, botToken string) (initdata.InitData, error) {
+	expIn := 24 * time.Hour
+	err := initdata.Validate(initData, botToken, expIn)
+	if err != nil {
+		return initdata.InitData{}, err
 	}
-	sort.Strings(data)
-
-	checkString := strings.Join(data, "\n")
-
-	secret := sha256.Sum256([]byte(botToken))
-	h := hmac.New(sha256.New, secret[:])
-	h.Write([]byte(checkString))
-
-	expected := hex.EncodeToString(h.Sum(nil))
-
-	return valuesToMap(values), expected == hash
-}
-
-func valuesToMap(v url.Values) map[string]string {
-	m := make(map[string]string)
-	for k, val := range v {
-		m[k] = val[0]
-	}
-	return m
+	return initdata.Parse(initData)
 }