Disable integrity verification & add patcher utils

README.md

@@ -25,3 +25,23 @@ All you have to do is clone this repository, change the `ReferenceBasePath`s in
 Set `ReferenceBasePath` to your SEB installation (SafeExamBrowser\Application). You also need to copy the MonoMod files into your SEB installation.
 
 If you want to separate your development/testing files from your actual SEB installation, I recommend copying the files in SafeExamBrowser\Application and the MonoMod files to their own directory.
+
+## Resources
+
+This depends on MonoMod and SafeExamBrowser.
+
+**Download Resources**
+
+SafeExamBrowser: [https://safeexambrowser.org/download_en.html](https://safeexambrowser.org/download_en.html)
+
+MonoMod: [https://github.com/MonoMod/MonoMod](https://github.com/MonoMod/MonoMod)
+
+**Learning Resources**
+
+SafeExamBrowser sourcecode: [https://github.com/SafeExamBrowser/seb-win-refactoring](https://github.com/SafeExamBrowser/seb-win-refactoring)
+
+MonoMod API documentation: [https://monomod.github.io/api/index.html](https://monomod.github.io/api/index.html)
+
+MonoMod step-by-step example implementation: [https://github.com/TROYTRON/ti-mods/blob/main/tutorials/MonoMod%20Guide.md](https://github.com/TROYTRON/ti-mods/blob/main/tutorials/MonoMod%20Guide.md)
+
+dnSpy decomp/analysis tool: [https://github.com/dnSpyEx/dnSpy](https://github.com/dnSpyEx/dnSpy)

SEBPatcher.Configuration/SEBPatcher.Configuration.csproj

@@ -6,7 +6,7 @@
     <ProjectGuid>{6E7CE06E-5C8A-40F9-8DCA-0C72D30A4AEF}</ProjectGuid>
     <OutputType>Library</OutputType>
     <RootNamespace>SEBPatcher.Configuration</RootNamespace>
-    <AssemblyName>SEBPatcher.Configuration</AssemblyName>
+    <AssemblyName>SafeExamBrowser.Configuration.SEBPatcher.mm</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">

SEBPatcher.Configuration/patch_IntegrityModule.cs

@@ -6,5 +6,15 @@ namespace SafeExamBrowser.Configuration.Integrity
     public class patch_IntegrityModule : IntegrityModule
     {
         [MonoModIgnore] public patch_IntegrityModule(Configuration.Contracts.AppConfig appConfig, SafeExamBrowser.Logging.Contracts.ILogger logger) : base(appConfig, logger) { }
+
+        [MonoModOriginal] public extern bool orig_TryVerifyCodeSignature(out bool isValid);
+#pragma warning disable CS0108 // Member hides inherited member; missing new keyword
+        public bool TryVerifyCodeSignature(out bool isValid)
+#pragma warning restore CS0108 // Member hides inherited member; missing new keyword
+        {
+            bool result = orig_TryVerifyCodeSignature(out isValid);
+            isValid = true;
+            return true;
+        }
     }
 }

SEBPatcher.Monitoring/Applications/ApplicationMonitor.cs

@@ -1,10 +0,0 @@
-using System;
-namespace SEBPatcher.Monitoring.Applications
-{
-    public class ApplicationMonitor
-    {
-        public ApplicationMonitor()
-        {
-        }
-    }
-}

SEBPatcher.Monitoring/Display/patch_DisplayMonitor.cs

@@ -0,0 +1,34 @@
+using System;
+using MonoMod;
+using SafeExamBrowser.Logging.Contracts;
+using SafeExamBrowser.SystemComponents.Contracts;
+using SafeExamBrowser.Monitoring.Contracts.Display;
+using SafeExamBrowser.Settings.Monitoring;
+using SafeExamBrowser.WindowsApi.Contracts;
+
+namespace SafeExamBrowser.Monitoring.Display
+{
+#pragma warning disable IDE1006 // Naming Styles
+    public class patch_DisplayMonitor : DisplayMonitor
+#pragma warning restore IDE1006 // Naming Styles
+    {
+        [MonoModIgnore] public patch_DisplayMonitor(ILogger logger, INativeMethods nativeMethods, ISystemInfo systemInfo) : base(logger, nativeMethods, systemInfo) { }
+
+#pragma warning disable IDE1006 // Naming Styles
+        [MonoModOriginal] public extern ValidationResult orig_ValidateConfiguration(DisplaySettings settings);
+#pragma warning restore IDE1006 // Naming Styles
+#pragma warning disable CS0108 // Member hides inherited member; missing new keyword
+        public ValidationResult ValidateConfiguration(DisplaySettings settings)
+#pragma warning restore CS0108 // Member hides inherited member; missing new keyword
+        {
+            ValidationResult result = orig_ValidateConfiguration(settings);
+
+            return new ValidationResult
+            {
+                ExternalDisplays = 0,
+                InternalDisplays = 1,
+                IsAllowed = true
+            };
+        }
+    }
+}

SEBPatcher.Monitoring/SEBPatcher.Monitoring.csproj

@@ -73,16 +73,25 @@
     <Reference Include="SafeExamBrowser.Settings">
       <HintPath>$(ReferenceBasePath)\SafeExamBrowser.Settings.dll</HintPath>
     </Reference>
+    <Reference Include="SafeExamBrowser.Monitoring.Contracts">
+      <HintPath>$(ReferenceBasePath)\SafeExamBrowser.Monitoring.Contracts.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="patch_VirtualMachineDetector.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="patch_Clipboard.cs" />
     <Compile Include="patch_RemoteSessionDetector.cs" />
-    <Compile Include="Applications\ApplicationMonitor.cs" />
+    <Compile Include="Display\patch_DisplayMonitor.cs" />
   </ItemGroup>
   <ItemGroup>
-    <Folder Include="Applications\" />
+    <Folder Include="Display\" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\SEBPatcherUtils\SEBPatcherUtils.csproj">
+      <Project>{82F861DC-D8C7-46F9-AA60-B67CF43712D5}</Project>
+      <Name>SEBPatcherUtils</Name>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
 </Project>

SEBPatcher.Monitoring/patch_VirtualMachineDetector.cs

@@ -1,6 +1,5 @@
-using System;
+using MonoMod;
-using SafeExamBrowser.Monitoring;
+using SEBPatcherUtils;
-using MonoMod;
 using SafeExamBrowser.Logging.Contracts;
 using SafeExamBrowser.SystemComponents.Contracts;
 using SafeExamBrowser.SystemComponents.Contracts.Registry;
@@ -12,11 +11,11 @@ namespace SafeExamBrowser.Monitoring
 #pragma warning restore IDE1006 // Naming Styles
     {
         [MonoModIgnore] public patch_VirtualMachineDetector(ILogger logger, IRegistry registry, ISystemInfo systemInfo) : base(logger, registry, systemInfo) { }
-        //[MonoModOriginal] public extern void orig_VirtualMachineDetector();
+        [MonoModOriginal] public extern void orig_VirtualMachineDetector();
-        //[MonoModConstructor] public void VirtualMachineDetector()
+        [MonoModConstructor] public void VirtualMachineDetector()
-        //{
+        {
-        //    orig_VirtualMachineDetector();
+            orig_VirtualMachineDetector();
-        //}
+        }
 
 #pragma warning disable IDE1006 // Naming Styles
         [MonoModOriginal] public extern bool orig_IsVirtualMachine();

SEBPatcher.sln

@@ -5,6 +5,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SEBPatcher.Monitoring", "SE
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SEBPatcher.Configuration", "SEBPatcher.Configuration\SEBPatcher.Configuration.csproj", "{6E7CE06E-5C8A-40F9-8DCA-0C72D30A4AEF}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SEBPatcherUtils", "SEBPatcherUtils\SEBPatcherUtils.csproj", "{82F861DC-D8C7-46F9-AA60-B67CF43712D5}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -19,5 +21,9 @@ Global
 		{6E7CE06E-5C8A-40F9-8DCA-0C72D30A4AEF}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6E7CE06E-5C8A-40F9-8DCA-0C72D30A4AEF}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{6E7CE06E-5C8A-40F9-8DCA-0C72D30A4AEF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{82F861DC-D8C7-46F9-AA60-B67CF43712D5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{82F861DC-D8C7-46F9-AA60-B67CF43712D5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{82F861DC-D8C7-46F9-AA60-B67CF43712D5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{82F861DC-D8C7-46F9-AA60-B67CF43712D5}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal

SEBPatcherUtils/Constants.cs

@@ -0,0 +1,11 @@
+namespace SEBPatcherUtils
+{
+    public class Constants
+    {
+        public string patcherVersion = "1.0.0";
+
+        public string sebTargetVersion = "3.8.0";
+
+        public string monomodNetVersion = "4.5.2";
+    }
+}

SEBPatcherUtils/PatchLogger.cs

@@ -0,0 +1,55 @@
+using System;
+using System.IO;
+
+namespace SEBPatcherUtils
+{
+    public class PatchLogger
+    {
+        private readonly string _logFilePath;
+        private readonly string _logModule;
+
+        public PatchLogger(string logModule, string logFilePath)
+        {
+            _logFilePath = logFilePath;
+            _logModule = logModule;
+        }
+
+        public void Log(string message, string logLevel = "INFO")
+        {
+            string logEntry = $"{DateTime.Now:yyyy-MM-dd HH:mm:ss} [SEBPatcher] [{_logModule}] [{logLevel}] {message}";
+            AppendToFile(logEntry);
+        }
+
+        public void Info(string message)
+        {
+            Log(message, "INFO");
+        }
+
+        public void Error(string message)
+        {
+            Log(message, "ERROR");
+        }
+
+        public void Warning(string message)
+        {
+            Log(message, "WARNING");
+        }
+
+        public void Debug(string message)
+        {
+            Log(message, "DEBUG");
+        }
+
+        public void AppendToFile(string logEntry)
+        {
+            try
+            {
+                File.AppendAllText(_logFilePath, logEntry + Environment.NewLine);
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"[SEBPatcher] Failed to write to log file: {ex.Message}");
+            }
+        }
+    }
+}

SEBPatcherUtils/Properties/AssemblyInfo.cs

@@ -0,0 +1,26 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+// Information about this assembly is defined by the following attributes. 
+// Change them to the values specific to your project.
+
+[assembly: AssemblyTitle("SEBPatcherUtils")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("${AuthorCopyright}")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
+// The form "{Major}.{Minor}.*" will automatically update the build and revision,
+// and "{Major}.{Minor}.{Build}.*" will update just the revision.
+
+[assembly: AssemblyVersion("1.0.*")]
+
+// The following attributes are used to specify the signing key for the assembly, 
+// if desired. See the Mono documentation for more information about signing.
+
+//[assembly: AssemblyDelaySign(false)]
+//[assembly: AssemblyKeyFile("")]

SEBPatcherUtils/SEBPatcherUtils.csproj

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{82F861DC-D8C7-46F9-AA60-B67CF43712D5}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <RootNamespace>SEBPatcherUtils</RootNamespace>
+    <AssemblyName>SEBPatcherUtils</AssemblyName>
+    <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="PatchLogger.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Constants.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+</Project>