init repo

utils/base64.go

@@ -0,0 +1,15 @@
+package utils
+
+import "encoding/base64"
+
+func Base64Encode(s string) string {
+	return base64.StdEncoding.EncodeToString([]byte(s))
+}
+
+func Base64Decode(s string) string {
+	data, err := base64.StdEncoding.DecodeString(s)
+	if err != nil {
+		return ""
+	}
+	return string(data)
+}

utils/crypto.go

@@ -0,0 +1,13 @@
+package utils
+
+import (
+	"crypto/hmac"
+	"crypto/sha256"
+)
+
+func ValidMAC(message, messageMAC, key []byte) bool {
+	mac := hmac.New(sha256.New, key)
+	mac.Write(message)
+	expectedMAC := mac.Sum(nil)
+	return hmac.Equal(messageMAC, expectedMAC)
+}

utils/idgen.go

@@ -0,0 +1,21 @@
+package utils
+
+import (
+	"strings"
+
+	"github.com/google/uuid"
+)
+
+func GenerateUID() string {
+	return uuid.New().String()
+}
+
+func L32UID() string {
+	o := GenerateUID()
+	n := strings.Replace(o, "-", "", -1)
+	return n
+}
+
+func GenCode() string {
+	return strings.ToUpper(L32UID()[0:6])
+}

utils/jwt.go

@@ -0,0 +1,65 @@
+package utils
+
+import (
+	"errors"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+// @secretKey: JWT 加解密密钥
+// @iat: 时间戳
+// @seconds: 过期时间，单位秒
+// @payload: 数据载体
+func GetJwtToken(secretKey string, iat, seconds int64, payload string) (string, error) {
+	claims := make(jwt.MapClaims)
+	claims["exp"] = iat + seconds
+	claims["iat"] = iat
+	claims["payload"] = payload
+	token := jwt.New(jwt.SigningMethodHS256)
+	token.Claims = claims
+	return token.SignedString([]byte(secretKey))
+}
+
+// @secretKey: JWT 加解密密钥
+// @iat: 时间戳
+// @seconds: 过期时间，单位秒
+// @payload: 数据载体
+func GetJwtTokenFromMap(secretKey string, iat, seconds int64, payload map[string]string) (string, error) {
+	claims := make(jwt.MapClaims)
+	claims["exp"] = iat + seconds
+	claims["iat"] = iat
+	for k, v := range payload {
+		claims[k] = v
+	}
+	token := jwt.New(jwt.SigningMethodHS256)
+	token.Claims = claims
+	return token.SignedString([]byte(secretKey))
+}
+
+// @secretKey: JWT 加解密密钥
+// @token: JWT Token 的字符串
+func ValidateJwtToken(secretKey, token string) (bool, error) {
+	t, err := jwt.Parse(token, func(token *jwt.Token) (interface{}, error) {
+		return []byte(secretKey), nil
+	})
+	if err != nil {
+		return false, err
+	}
+	return t.Valid, nil
+}
+
+func ParseToken(secretKey, tokenStr string) (u jwt.MapClaims, err error) {
+	token, err := jwt.Parse(tokenStr, func(token *jwt.Token) (interface{}, error) {
+		return []byte(secretKey), nil
+	})
+
+	if err != nil {
+		return nil, errors.New("couldn't handle this token")
+	}
+
+	if t, ok := token.Claims.(jwt.MapClaims); ok && token.Valid {
+		return t, nil
+	}
+
+	return nil, errors.New("couldn't handle this token")
+}