From c2d1f713059f8483ed4ff76242d666bbc61123b3 Mon Sep 17 00:00:00 2001
From: wwqgtxx <wwqgtxx@gmail.com>
Date: Fri, 14 Apr 2023 19:06:25 +0800
Subject: [PATCH] fix: ruleProvider panic

---
 rules/provider/provider.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/rules/provider/provider.go b/rules/provider/provider.go
index a4271655..65d21d2f 100644
--- a/rules/provider/provider.go
+++ b/rules/provider/provider.go
@@ -187,6 +187,9 @@ func rulesParse(buf []byte, strategy ruleStrategy, format P.RuleFormat) (any, er
 			firstLineLength = -1 // don't return ErrNoPayload when read last line
 			str = string(line)
 			str = strings.TrimSpace(str)
+			if len(str) == 0 {
+				continue
+			}
 			if str[0] == '#' { // comment
 				continue
 			}
@@ -194,7 +197,11 @@ func rulesParse(buf []byte, strategy ruleStrategy, format P.RuleFormat) (any, er
 				continue
 			}
 		case P.YamlRule:
-			if bytes.TrimSpace(line)[0] == '#' { // comment
+			trimLine := bytes.TrimSpace(line)
+			if len(trimLine) == 0 {
+				continue
+			}
+			if trimLine[0] == '#' { // comment
 				continue
 			}
 			firstLineBuffer.Write(line)