From f19f4c6f7254405516e5c2a150bc94d3e2657bda Mon Sep 17 00:00:00 2001
From: ywmoyue <ywmoyue@163.com>
Date: Sat, 1 Jun 2024 11:04:55 +0800
Subject: [PATCH] =?UTF-8?q?=E5=90=8C=E6=AD=A5/=E5=AF=BC=E5=85=A5=E5=BC=B9?=
 =?UTF-8?q?=E5=B9=95=E5=B1=8F=E8=94=BD=E8=AF=8D=E6=97=B6=E7=A7=BB=E9=99=A4?=
 =?UTF-8?q?=E9=9D=9E=E6=B3=95=E6=AD=A3=E5=88=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/BiliLite.UWP/BiliLite.UWP.csproj          |  1 +
 .../Extensions/RegexExtensions.cs             | 24 +++++++++++++++++++
 src/BiliLite.UWP/Modules/SettingVM.cs         |  5 ++++
 3 files changed, 30 insertions(+)
 create mode 100644 src/BiliLite.UWP/Extensions/RegexExtensions.cs

diff --git a/src/BiliLite.UWP/BiliLite.UWP.csproj b/src/BiliLite.UWP/BiliLite.UWP.csproj
index c46dd6e8..3b629933 100644
--- a/src/BiliLite.UWP/BiliLite.UWP.csproj
+++ b/src/BiliLite.UWP/BiliLite.UWP.csproj
@@ -157,6 +157,7 @@
     </Compile>
     <Compile Include="Extensions\ControlsExtensions.cs" />
     <Compile Include="Extensions\QrCodeExtensions.cs" />
+    <Compile Include="Extensions\RegexExtensions.cs" />
     <Compile Include="Models\Attributes\SettingDefaultValueAttribute.cs" />
     <Compile Include="Models\Attributes\SettingKeyAttribute.cs" />
     <Compile Include="Models\Common\Anime\ISeasonItem.cs" />
diff --git a/src/BiliLite.UWP/Extensions/RegexExtensions.cs b/src/BiliLite.UWP/Extensions/RegexExtensions.cs
new file mode 100644
index 00000000..30a65cc7
--- /dev/null
+++ b/src/BiliLite.UWP/Extensions/RegexExtensions.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Text.RegularExpressions;
+
+namespace BiliLite.Extensions
+{
+    public static class RegexExtensions
+    {
+        public static bool IsValidRegex(this string regexString)
+        {
+            if (string.IsNullOrEmpty(regexString)) return false;
+
+            try
+            {
+                var regex = new Regex(regexString);
+                return true;
+            }
+            catch (Exception)
+            {
+                // 语法不正确的正则表达式会导致ArgumentException异常
+                return false;
+            }
+        }
+    }
+}
diff --git a/src/BiliLite.UWP/Modules/SettingVM.cs b/src/BiliLite.UWP/Modules/SettingVM.cs
index 47a29950..40d92fc6 100644
--- a/src/BiliLite.UWP/Modules/SettingVM.cs
+++ b/src/BiliLite.UWP/Modules/SettingVM.cs
@@ -216,6 +216,11 @@ private void ImportDanmakuFilterCore(List<DanmuFilterItem> filterList)
                 ShieldRegulars.Clear();
                 foreach (var item in ls)
                 {
+                    if (!item.IsValidRegex())
+                    {
+                        logger.Warn("非法正则表达式: " + item);
+                        continue;
+                    }
                     ShieldRegulars.Add(item);
                 }
                 SettingService.SetValue(SettingConstants.VideoDanmaku.SHIELD_REGULAR, ShieldRegulars);