From b4b8224b48964d103532dd324268a25a1eec3056 Mon Sep 17 00:00:00 2001
From: ywmoyue <ywmoyue@163.com>
Date: Fri, 3 May 2024 11:42:11 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8F=96=E6=B6=88=E4=B8=8D=E8=BD=AC=E6=8D=A2?=
 =?UTF-8?q?=E4=B8=93=E6=A0=8F=E5=8A=A8=E6=80=81=EF=BC=8C=E8=BD=AC=E6=8D=A2?=
 =?UTF-8?q?=E5=AF=8C=E6=96=87=E6=9C=AC=E5=89=8D=E5=88=A4=E6=96=AD=E6=98=AF?=
 =?UTF-8?q?=E5=90=A6=E5=90=88=E6=B3=95xml?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Extensions/DynamicParseExtensions.cs      |  6 +++++
 .../Extensions/StringExtensions.cs            | 23 +++++++++++++++++++
 .../UserDynamic/DynamicV2ItemViewModel.cs     |  5 ----
 3 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/src/BiliLite.UWP/Extensions/DynamicParseExtensions.cs b/src/BiliLite.UWP/Extensions/DynamicParseExtensions.cs
index 69aa4e33..4bb1ead3 100644
--- a/src/BiliLite.UWP/Extensions/DynamicParseExtensions.cs
+++ b/src/BiliLite.UWP/Extensions/DynamicParseExtensions.cs
@@ -9,6 +9,7 @@
 using BiliLite.Models.Common;
 using BiliLite.Models.Common.UserDynamic;
 using BiliLite.Models.Dynamic;
+using BiliLite.Models.Exceptions;
 using BiliLite.Services;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
@@ -118,6 +119,11 @@ public static RichTextBlock UserDynamicStringToRichText(
          {1}                                 
 <Paragraph>{0}</Paragraph>
                                       </RichTextBlock>", input, titlePara);
+                if (!xaml.IsXmlString())
+                {
+                    throw new CustomizedErrorException("不是有效的xml字符串");
+                }
+
                 var p = (RichTextBlock)XamlReader.Load(xaml);
                 return p;
 
diff --git a/src/BiliLite.UWP/Extensions/StringExtensions.cs b/src/BiliLite.UWP/Extensions/StringExtensions.cs
index 6ff692b5..289cfc80 100644
--- a/src/BiliLite.UWP/Extensions/StringExtensions.cs
+++ b/src/BiliLite.UWP/Extensions/StringExtensions.cs
@@ -16,6 +16,8 @@
 using Windows.Storage.Streams;
 using System.Threading.Tasks;
 using System.Linq;
+using System.Xml;
+using BiliLite.Models.Exceptions;
 
 namespace BiliLite.Extensions
 {
@@ -120,6 +122,10 @@ public static RichTextBlock ToRichTextBlock(this string txt, JObject emote, bool
                                                                 fontColor == null ? "" : $"Foreground=\"{fontColor}\"",
                                                                 $"FontWeight=\"{fontWeight}\"",
                                                                 lowProfilePrefix);
+                    if (!xaml.IsXmlString())
+                    {
+                        throw new CustomizedErrorException("不是有效的xml字符串");
+                    }
                     var p = (RichTextBlock)XamlReader.Load(xaml);
                     return p;
                 }
@@ -332,6 +338,23 @@ public static string UrlEncode(this string text)
             return Uri.EscapeDataString(text);
         }
 
+        public static bool IsXmlString(this string text)
+        {
+            if (string.IsNullOrEmpty(text)) return false;
+            var detail = text.Trim();
+            if (!detail.StartsWith("<") && !detail.EndsWith(">")) return false;
+            var xml = new XmlDocument();
+            try
+            {
+                xml.LoadXml($"<Root>{detail}</Root>");
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
         #region Private methods
 
         /// <summary>
diff --git a/src/BiliLite.UWP/ViewModels/UserDynamic/DynamicV2ItemViewModel.cs b/src/BiliLite.UWP/ViewModels/UserDynamic/DynamicV2ItemViewModel.cs
index d233185d..8f662708 100644
--- a/src/BiliLite.UWP/ViewModels/UserDynamic/DynamicV2ItemViewModel.cs
+++ b/src/BiliLite.UWP/ViewModels/UserDynamic/DynamicV2ItemViewModel.cs
@@ -140,11 +140,6 @@ public RichTextBlock Content
             {
                 try
                 {
-                    if (CardType == Constants.DynamicTypes.ARTICLE && OpusSummary != null)
-                    {
-                        var text = OpusSummary.Summary.Text.Nodes.Aggregate("", (current, textNode) => current + textNode.RawText);
-                        return text.GetSimpleRichTextBlock();
-                    }
                     if (Desc != null)
                     {
                         return