Add Find-Package (#7)

BuildSettings.psd1

@@ -1,6 +1,8 @@
 @{
     Path = @(
-        './src/code/bin/Release/netstandard2.0/MsuProvider.dll',
+        './src/code/bin/Release/net461/MsuProvider.dll',
+        './src/code/bin/Release/net461/Microsoft.Deployment.Compression.dll',
+        './src/code/bin/Release/net461/Microsoft.Deployment.Compression.Cab.dll',
         './src/AnyPackage.Msu.psd1'
     )
     Destination = './module'

src/code/MsuProvider.cs

@@ -2,18 +2,58 @@
 // You may use, distribute and modify this code under the
 // terms of the MIT license.
 
+using Microsoft.Deployment.Compression.Cab;
 using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
 using System.Management;
 
 namespace AnyPackage.Provider.Msu
 {
     [PackageProvider("Msu")]
-    public sealed class MsuProvider : PackageProvider, IGetPackage
+    public sealed class MsuProvider : PackageProvider, IFindPackage, IGetPackage
     {
         private readonly static Guid s_id = new Guid("314633fe-c7e9-4eeb-824b-382a8a4e92b8");
 
         public MsuProvider() : base(s_id) { }
 
+        public void FindPackage(PackageRequest request)
+        {
+            var file = new CabInfo(request.Name).GetFiles()
+                                                .Where(x => Path.GetExtension(x.Name) == ".txt")
+                                                .FirstOrDefault();
+
+            if (file is null)
+            {
+                return;
+            }
+
+            string line;
+            Dictionary<string, string> metadata = new Dictionary<string, string>();
+            using var reader = file.OpenText();
+
+            while ((line = reader.ReadLine()) is not null)
+            {
+                var values = line.Split('=');
+                var key = values[0].Replace(" ", "");
+
+                // Remove quotes around value
+                var value = values[1].Substring(1, values[1].Length - 2);
+
+                metadata.Add(key, value);
+            }
+
+            if (metadata.ContainsKey("KBArticleNumber"))
+            {
+                var kb = string.Format("KB{0}", metadata["KBArticleNumber"]);
+                request.WritePackage(kb,
+                                     new PackageVersion("0"),
+                                     metadata["PackageType"],
+                                     request.NewSourceInfo(request.Name, request.Name));
+            }
+        }
+
         public void GetPackage(PackageRequest request)
         {
             var quickFix = new ManagementObjectSearcher(@"root\cimv2", "select * from Win32_QuickFixEngineering");

src/code/MsuProvider.csproj

@@ -1,16 +1,17 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>net461</TargetFramework>
     <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
     <Copyright>© 2023 Thomas Nieto. All rights reserved.</Copyright>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="AnyPackage" Version="0.4.2" />
+    <PackageReference Include="MSFTCompressionCab" Version="1.0.0" />
     <PackageReference Include="PowerShellStandard.Library" Version="5.1.1" />
-    <PackageReference Include="System.Management" Version="7.0.0" />
+    <PackageReference Include="System.Management" Version="6.0.0" />
   </ItemGroup>
 
 </Project>