Initial commit: 网络验证平台

backend/pkg/utils/utils.go

@@ -0,0 +1,42 @@
+package utils
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"math/big"
+)
+
+// GenerateRandomString 生成随机字符串
+func GenerateRandomString(length int) string {
+	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	b := make([]byte, length)
+	for i := range b {
+		n, _ := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
+		b[i] = charset[n.Int64()]
+	}
+	return string(b)
+}
+
+// GenerateRandomNumber 生成随机数字
+func GenerateRandomNumber(length int) string {
+	const charset = "0123456789"
+	b := make([]byte, length)
+	for i := range b {
+		n, _ := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
+		b[i] = charset[n.Int64()]
+	}
+	return string(b)
+}
+
+// GenerateCardKey 生成卡密
+func GenerateCardKey(prefix string, length int) string {
+	randomPart := GenerateRandomString(length)
+	return prefix + "-" + randomPart
+}
+
+// GenerateBase64Token 生成Base64令牌
+func GenerateBase64Token(length int) string {
+	b := make([]byte, length)
+	rand.Read(b)
+	return base64.URLEncoding.EncodeToString(b)
+}