feat: 代理认证中间件

internal/utils/string_utils.go

@@ -1,6 +1,9 @@
 package utils
 
-import "fmt"
+import (
+	"fmt"
+	"strings"
+)
 
 // MaskAPIKey masks an API key for safe logging.
 func MaskAPIKey(key string) string {
@@ -18,3 +21,22 @@ func TruncateString(s string, maxLength int) string {
 	}
 	return s
 }
+
+// SplitAndTrim splits a string by a separator
+func SplitAndTrim(s string, sep string) []string {
+	if s == "" {
+		return []string{}
+	}
+
+	parts := strings.Split(s, sep)
+	result := make([]string, 0, len(parts))
+
+	for _, part := range parts {
+		trimmed := strings.TrimSpace(part)
+		if trimmed != "" {
+			result = append(result, trimmed)
+		}
+	}
+
+	return result
+}