From 544fbd19f43404ba26a92e7b94103127c6065db1 Mon Sep 17 00:00:00 2001
From: "Namhyeon, Go" <gnh1201@gmail.com>
Date: Tue, 16 Apr 2024 18:15:40 +0900
Subject: [PATCH] some fixes

---
 .../Catswords.DataType.Client.csproj          | 51 ++++++++++++++-----
 .../Helper/FileHasher.cs                      | 37 +++++++-------
 .../Helper/InfoHashExtractor.cs               | 51 +++++++++++++++++++
 Catswords.DataType.Client/packages.config     |  1 -
 4 files changed, 106 insertions(+), 34 deletions(-)
 create mode 100644 Catswords.DataType.Client/Helper/InfoHashExtractor.cs

diff --git a/Catswords.DataType.Client/Catswords.DataType.Client.csproj b/Catswords.DataType.Client/Catswords.DataType.Client.csproj
index 138b732..0b13a66 100644
--- a/Catswords.DataType.Client/Catswords.DataType.Client.csproj
+++ b/Catswords.DataType.Client/Catswords.DataType.Client.csproj
@@ -12,6 +12,21 @@
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <PublishUrl>게시\</PublishUrl>
+    <Install>true</Install>
+    <InstallFrom>Disk</InstallFrom>
+    <UpdateEnabled>false</UpdateEnabled>
+    <UpdateMode>Foreground</UpdateMode>
+    <UpdateInterval>7</UpdateInterval>
+    <UpdateIntervalUnits>Days</UpdateIntervalUnits>
+    <UpdatePeriodically>false</UpdatePeriodically>
+    <UpdateRequired>false</UpdateRequired>
+    <MapFileExtensions>true</MapFileExtensions>
+    <ApplicationRevision>0</ApplicationRevision>
+    <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
+    <IsWebBootstrapper>false</IsWebBootstrapper>
+    <UseApplicationTrust>false</UseApplicationTrust>
+    <BootstrapperEnabled>true</BootstrapperEnabled>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
@@ -42,9 +57,6 @@
     <AssemblyOriginatorKeyFile>socialonthefile.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="BencodeNET, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\BencodeNET.4.0.0\lib\netstandard2.0\BencodeNET.dll</HintPath>
-    </Reference>
     <Reference Include="Crc32.NET, Version=1.0.0.0, Culture=neutral, PublicKeyToken=dc0b95cf99bf4e99, processorArchitecture=MSIL">
       <HintPath>..\packages\Crc32.NET.1.2.0\lib\net20\Crc32.NET.dll</HintPath>
     </Reference>
@@ -103,6 +115,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Config.cs" />
+    <Compile Include="Helper\InfoHashExtractor.cs" />
     <Compile Include="Model\CfbfPartInfo.cs" />
     <Compile Include="Model\HashInfo.cs" />
     <Compile Include="Worker1.cs" />
@@ -192,16 +205,6 @@
   <ItemGroup>
     <None Include="Resources\document_paperclip_list_paper_icon_219544.png" />
   </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\..\..\..\OneDrive\문서\GitHub\androidxmldotnet\AndroidXml\AndroidXml.csproj">
-      <Project>{607eeb2c-6b7c-409e-959e-3b458a109426}</Project>
-      <Name>AndroidXml</Name>
-    </ProjectReference>
-    <ProjectReference Include="..\..\..\..\OneDrive\문서\GitHub\SsdeepNET\Source\SsdeepNET\SsdeepNET.csproj">
-      <Project>{b1244c5a-cdeb-4d1d-8807-bf40251abcab}</Project>
-      <Name>SsdeepNET</Name>
-    </ProjectReference>
-  </ItemGroup>
   <ItemGroup>
     <None Include="Resources\2333410-android-os-smartphone_85588.png" />
   </ItemGroup>
@@ -214,5 +217,27 @@
   <ItemGroup>
     <None Include="Resources\tags_icon-icons.com_73382.png" />
   </ItemGroup>
+  <ItemGroup>
+    <BootstrapperPackage Include=".NETFramework,Version=v4.8">
+      <Visible>False</Visible>
+      <ProductName>Microsoft .NET Framework 4.8%28x86 및 x64%29</ProductName>
+      <Install>true</Install>
+    </BootstrapperPackage>
+    <BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1">
+      <Visible>False</Visible>
+      <ProductName>.NET Framework 3.5 SP1</ProductName>
+      <Install>false</Install>
+    </BootstrapperPackage>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\androidxmldotnet\AndroidXml\AndroidXml.csproj">
+      <Project>{e55ce5e9-aeec-4625-82ff-9c73dad2ba84}</Project>
+      <Name>AndroidXml</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\SsdeepNET\Source\SsdeepNET\SsdeepNET.csproj">
+      <Project>{1fc34ef4-5137-4069-a18a-d35afec5181f}</Project>
+      <Name>SsdeepNET</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file
diff --git a/Catswords.DataType.Client/Helper/FileHasher.cs b/Catswords.DataType.Client/Helper/FileHasher.cs
index a01f29c..d85d5f1 100644
--- a/Catswords.DataType.Client/Helper/FileHasher.cs
+++ b/Catswords.DataType.Client/Helper/FileHasher.cs
@@ -1,6 +1,4 @@
-using BencodeNET.Parsing;
-using BencodeNET.Torrents;
-using Force.Crc32;
+using Force.Crc32;
 using SsdeepNET;
 using System;
 using System.IO;
@@ -20,26 +18,26 @@ namespace Catswords.DataType.Client.Helper
 
         public string GetExtension()
         {
+            string extension = string.Empty;
+
             try
             {
                 if (Path.GetExtension(FilePath).Length > 0)
                 {
-                    return Path.GetExtension(FilePath).Substring(1).ToUpper();
-                }
-                else
-                {
-                    return "";
+                    extension = Path.GetExtension(FilePath).Substring(1).ToLower();
                 }
             }
-            catch (Exception)
+            catch
             {
-                return "";
+                // nothing
             }
+
+            return extension;
         }
 
         public string GetMD5()
         {
-            string checksum = "";
+            string checksum = string.Empty;
 
             using (MD5 hasher = MD5.Create())
             {
@@ -55,7 +53,7 @@ namespace Catswords.DataType.Client.Helper
 
         public string GetSHA1()
         {
-            string checksum = "";
+            string checksum = string.Empty;
 
             using (SHA1 hasher = SHA1.Create())
             {
@@ -71,7 +69,7 @@ namespace Catswords.DataType.Client.Helper
 
         public string GetCRC32()
         {
-            string checksum = "";
+            string checksum = string.Empty;
 
             using (FileStream stream = File.OpenRead(FilePath))
             {
@@ -85,7 +83,7 @@ namespace Catswords.DataType.Client.Helper
 
         public string GetSHA256()
         {
-            string checksum = "";
+            string checksum = string.Empty;
 
             using (SHA256 hasher = SHA256.Create())
             {
@@ -134,14 +132,13 @@ namespace Catswords.DataType.Client.Helper
 
         public string GetInfoHash()
         {
-            string checksum = "";
+            string checksum = string.Empty;
             string extension = GetExtension().ToLower();
 
             if (extension == "torrent")
             {
-                BencodeParser parser = new BencodeParser();
-                Torrent torrent = parser.Parse<Torrent>(FilePath);
-                checksum = BitConverter.ToString(torrent.GetInfoHashBytes()).Replace("-", "").ToLowerInvariant();
+                var extractor = new InfoHashExtractor(FilePath);
+                checksum = extractor.GetString();
             }
 
             return checksum;
@@ -149,7 +146,7 @@ namespace Catswords.DataType.Client.Helper
 
         public string GetSSDEEP()
         {
-            string checksum = "";
+            string checksum = string.Empty;
 
             using (FileStream stream = File.OpenRead(FilePath))
             {
@@ -165,7 +162,7 @@ namespace Catswords.DataType.Client.Helper
 
         public string GetHexView(byte[] Data)
         {
-            string output = "";
+            string output = string.Empty;
 
             StringBuilder strb = new StringBuilder();
             StringBuilder text = new StringBuilder();
diff --git a/Catswords.DataType.Client/Helper/InfoHashExtractor.cs b/Catswords.DataType.Client/Helper/InfoHashExtractor.cs
new file mode 100644
index 0000000..a810590
--- /dev/null
+++ b/Catswords.DataType.Client/Helper/InfoHashExtractor.cs
@@ -0,0 +1,51 @@
+using System;
+using System.IO;
+
+namespace Catswords.DataType.Client.Helper
+{
+    public class InfoHashExtractor
+    {
+        private string FilePath;
+
+        public InfoHashExtractor(string filePath)
+        {
+            FilePath = filePath;
+        }
+
+        public string GetString()
+        {
+            string infoHashString = "";
+
+            try
+            {
+                // 토렌트 파일을 바이트 배열로 읽어옴
+                byte[] torrentData = File.ReadAllBytes(FilePath);
+
+                // 토렌트 파일에서 InfoHash 추출
+                byte[] infoHash = ExtractInfoHash(torrentData);
+
+                // InfoHash를 문자열로 변환하여 출력
+                infoHashString = BitConverter.ToString(infoHash).Replace("-", "").ToLower();
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine("An error occurred: " + ex.Message);
+            }
+
+            return infoHashString;
+        }
+
+        private byte[] ExtractInfoHash(byte[] torrentData)
+        {
+            // 토렌트 파일의 구조에 따라 InfoHash 위치 파악
+            int start = Array.IndexOf(torrentData, (byte)'4', 0);
+            int end = Array.IndexOf(torrentData, (byte)'e', start);
+
+            // InfoHash 추출
+            byte[] infoHash = new byte[20];
+            Array.Copy(torrentData, start + 1, infoHash, 0, 20);
+
+            return infoHash;
+        }
+    }
+}
diff --git a/Catswords.DataType.Client/packages.config b/Catswords.DataType.Client/packages.config
index b2d7bb9..f4a53b4 100644
--- a/Catswords.DataType.Client/packages.config
+++ b/Catswords.DataType.Client/packages.config
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="BencodeNET" version="4.0.0" targetFramework="net48" />
   <package id="Crc32.NET" version="1.2.0" targetFramework="net48" />
   <package id="MetadataExtractor" version="2.8.1" targetFramework="net48" />
   <package id="Newtonsoft.Json" version="13.0.3" targetFramework="net48" />