├── .gitignore ├── Calculator ├── Calculator.cs └── Calculator.csproj ├── Compiler ├── Compiler.csproj └── Program.cs ├── CrazyProgram ├── CrazyProgram.csproj └── Program.cs ├── LICENSE ├── NoVisibilityChecksDemo.sln └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.suo 8 | *.user 9 | *.userosscache 10 | *.sln.docstates 11 | 12 | # User-specific files (MonoDevelop/Xamarin Studio) 13 | *.userprefs 14 | 15 | # Build results 16 | [Dd]ebug/ 17 | [Dd]ebugPublic/ 18 | [Rr]elease/ 19 | [Rr]eleases/ 20 | x64/ 21 | x86/ 22 | bld/ 23 | [Bb]in/ 24 | [Oo]bj/ 25 | [Ll]og/ 26 | 27 | # Visual Studio 2015/2017 cache/options directory 28 | .vs/ 29 | # Uncomment if you have tasks that create the project's static files in wwwroot 30 | #wwwroot/ 31 | 32 | # Visual Studio 2017 auto generated files 33 | Generated\ Files/ 34 | 35 | # MSTest test Results 36 | [Tt]est[Rr]esult*/ 37 | [Bb]uild[Ll]og.* 38 | 39 | # NUNIT 40 | *.VisualState.xml 41 | TestResult.xml 42 | 43 | # Build Results of an ATL Project 44 | [Dd]ebugPS/ 45 | [Rr]eleasePS/ 46 | dlldata.c 47 | 48 | # Benchmark Results 49 | BenchmarkDotNet.Artifacts/ 50 | 51 | # .NET Core 52 | project.lock.json 53 | project.fragment.lock.json 54 | artifacts/ 55 | **/Properties/launchSettings.json 56 | 57 | # StyleCop 58 | StyleCopReport.xml 59 | 60 | # Files built by Visual Studio 61 | *_i.c 62 | *_p.c 63 | *_i.h 64 | *.ilk 65 | *.meta 66 | *.obj 67 | *.iobj 68 | *.pch 69 | *.pdb 70 | *.ipdb 71 | *.pgc 72 | *.pgd 73 | *.rsp 74 | *.sbr 75 | *.tlb 76 | *.tli 77 | *.tlh 78 | *.tmp 79 | *.tmp_proj 80 | *.log 81 | *.vspscc 82 | *.vssscc 83 | .builds 84 | *.pidb 85 | *.svclog 86 | *.scc 87 | 88 | # Chutzpah Test files 89 | _Chutzpah* 90 | 91 | # Visual C++ cache files 92 | ipch/ 93 | *.aps 94 | *.ncb 95 | *.opendb 96 | *.opensdf 97 | *.sdf 98 | *.cachefile 99 | *.VC.db 100 | *.VC.VC.opendb 101 | 102 | # Visual Studio profiler 103 | *.psess 104 | *.vsp 105 | *.vspx 106 | *.sap 107 | 108 | # Visual Studio Trace Files 109 | *.e2e 110 | 111 | # TFS 2012 Local Workspace 112 | $tf/ 113 | 114 | # Guidance Automation Toolkit 115 | *.gpState 116 | 117 | # ReSharper is a .NET coding add-in 118 | _ReSharper*/ 119 | *.[Rr]e[Ss]harper 120 | *.DotSettings.user 121 | 122 | # JustCode is a .NET coding add-in 123 | .JustCode 124 | 125 | # TeamCity is a build add-in 126 | _TeamCity* 127 | 128 | # DotCover is a Code Coverage Tool 129 | *.dotCover 130 | 131 | # AxoCover is a Code Coverage Tool 132 | .axoCover/* 133 | !.axoCover/settings.json 134 | 135 | # Visual Studio code coverage results 136 | *.coverage 137 | *.coveragexml 138 | 139 | # NCrunch 140 | _NCrunch_* 141 | .*crunch*.local.xml 142 | nCrunchTemp_* 143 | 144 | # MightyMoose 145 | *.mm.* 146 | AutoTest.Net/ 147 | 148 | # Web workbench (sass) 149 | .sass-cache/ 150 | 151 | # Installshield output folder 152 | [Ee]xpress/ 153 | 154 | # DocProject is a documentation generator add-in 155 | DocProject/buildhelp/ 156 | DocProject/Help/*.HxT 157 | DocProject/Help/*.HxC 158 | DocProject/Help/*.hhc 159 | DocProject/Help/*.hhk 160 | DocProject/Help/*.hhp 161 | DocProject/Help/Html2 162 | DocProject/Help/html 163 | 164 | # Click-Once directory 165 | publish/ 166 | 167 | # Publish Web Output 168 | *.[Pp]ublish.xml 169 | *.azurePubxml 170 | # Note: Comment the next line if you want to checkin your web deploy settings, 171 | # but database connection strings (with potential passwords) will be unencrypted 172 | *.pubxml 173 | *.publishproj 174 | 175 | # Microsoft Azure Web App publish settings. Comment the next line if you want to 176 | # checkin your Azure Web App publish settings, but sensitive information contained 177 | # in these scripts will be unencrypted 178 | PublishScripts/ 179 | 180 | # NuGet Packages 181 | *.nupkg 182 | # The packages folder can be ignored because of Package Restore 183 | **/[Pp]ackages/* 184 | # except build/, which is used as an MSBuild target. 185 | !**/[Pp]ackages/build/ 186 | # Uncomment if necessary however generally it will be regenerated when needed 187 | #!**/[Pp]ackages/repositories.config 188 | # NuGet v3's project.json files produces more ignorable files 189 | *.nuget.props 190 | *.nuget.targets 191 | 192 | # Microsoft Azure Build Output 193 | csx/ 194 | *.build.csdef 195 | 196 | # Microsoft Azure Emulator 197 | ecf/ 198 | rcf/ 199 | 200 | # Windows Store app package directories and files 201 | AppPackages/ 202 | BundleArtifacts/ 203 | Package.StoreAssociation.xml 204 | _pkginfo.txt 205 | *.appx 206 | 207 | # Visual Studio cache files 208 | # files ending in .cache can be ignored 209 | *.[Cc]ache 210 | # but keep track of directories ending in .cache 211 | !*.[Cc]ache/ 212 | 213 | # Others 214 | ClientBin/ 215 | ~$* 216 | *~ 217 | *.dbmdl 218 | *.dbproj.schemaview 219 | *.jfm 220 | *.pfx 221 | *.publishsettings 222 | orleans.codegen.cs 223 | 224 | # Including strong name files can present a security risk 225 | # (https://github.com/github/gitignore/pull/2483#issue-259490424) 226 | #*.snk 227 | 228 | # Since there are multiple workflows, uncomment next line to ignore bower_components 229 | # (https://github.com/github/gitignore/pull/1529#issuecomment-104372622) 230 | #bower_components/ 231 | 232 | # RIA/Silverlight projects 233 | Generated_Code/ 234 | 235 | # Backup & report files from converting an old project file 236 | # to a newer Visual Studio version. Backup files are not needed, 237 | # because we have git ;-) 238 | _UpgradeReport_Files/ 239 | Backup*/ 240 | UpgradeLog*.XML 241 | UpgradeLog*.htm 242 | ServiceFabricBackup/ 243 | *.rptproj.bak 244 | 245 | # SQL Server files 246 | *.mdf 247 | *.ldf 248 | *.ndf 249 | 250 | # Business Intelligence projects 251 | *.rdl.data 252 | *.bim.layout 253 | *.bim_*.settings 254 | *.rptproj.rsuser 255 | 256 | # Microsoft Fakes 257 | FakesAssemblies/ 258 | 259 | # GhostDoc plugin setting file 260 | *.GhostDoc.xml 261 | 262 | # Node.js Tools for Visual Studio 263 | .ntvs_analysis.dat 264 | node_modules/ 265 | 266 | # Visual Studio 6 build log 267 | *.plg 268 | 269 | # Visual Studio 6 workspace options file 270 | *.opt 271 | 272 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.) 273 | *.vbw 274 | 275 | # Visual Studio LightSwitch build output 276 | **/*.HTMLClient/GeneratedArtifacts 277 | **/*.DesktopClient/GeneratedArtifacts 278 | **/*.DesktopClient/ModelManifest.xml 279 | **/*.Server/GeneratedArtifacts 280 | **/*.Server/ModelManifest.xml 281 | _Pvt_Extensions 282 | 283 | # Paket dependency manager 284 | .paket/paket.exe 285 | paket-files/ 286 | 287 | # FAKE - F# Make 288 | .fake/ 289 | 290 | # JetBrains Rider 291 | .idea/ 292 | *.sln.iml 293 | 294 | # CodeRush 295 | .cr/ 296 | 297 | # Python Tools for Visual Studio (PTVS) 298 | __pycache__/ 299 | *.pyc 300 | 301 | # Cake - Uncomment if you are using it 302 | # tools/** 303 | # !tools/packages.config 304 | 305 | # Tabs Studio 306 | *.tss 307 | 308 | # Telerik's JustMock configuration file 309 | *.jmconfig 310 | 311 | # BizTalk build output 312 | *.btp.cs 313 | *.btm.cs 314 | *.odx.cs 315 | *.xsd.cs 316 | 317 | # OpenCover UI analysis results 318 | OpenCover/ 319 | 320 | # Azure Stream Analytics local run output 321 | ASALocalRun/ 322 | 323 | # MSBuild Binary and Structured Log 324 | *.binlog 325 | 326 | # NVidia Nsight GPU debugger configuration file 327 | *.nvuser 328 | 329 | # MFractors (Xamarin productivity tool) working folder 330 | .mfractor/ 331 | -------------------------------------------------------------------------------- /Calculator/Calculator.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | 3 | namespace Calculator 4 | { 5 | class Square 6 | { 7 | public Square(double side) 8 | { 9 | Side = side; 10 | } 11 | 12 | public double Side { get; } 13 | } 14 | 15 | class AreaCalculator 16 | { 17 | private double Calculate(Square square) => square.Side * square.Side; 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /Calculator/Calculator.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | netcoreapp2.1 5 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /Compiler/Compiler.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Exe 5 | netcoreapp2.1 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | -------------------------------------------------------------------------------- /Compiler/Program.cs: -------------------------------------------------------------------------------- 1 | using Microsoft.CodeAnalysis; 2 | using Microsoft.CodeAnalysis.CSharp; 3 | using System; 4 | using System.IO; 5 | using System.Linq; 6 | using System.Reflection; 7 | using System.Threading; 8 | 9 | namespace Compiler 10 | { 11 | public class Program 12 | { 13 | public static void Main(string[] args) 14 | { 15 | var metadataReferences = new[] 16 | { 17 | typeof(object).GetTypeInfo().Assembly, // System.Private.CoreLib.dll 18 | typeof(Enumerable).GetTypeInfo().Assembly, // System.Linq.dll 19 | typeof(Console).GetTypeInfo().Assembly, // System.Console.dll 20 | Assembly.Load(new AssemblyName("System.Runtime")), // System.Runtime.dll 21 | Assembly.Load(new AssemblyName("Calculator")) // Calculator.dll 22 | }.Select(x => MetadataReference.CreateFromFile(x.Location)).ToList(); 23 | 24 | var compilationOptions = new CSharpCompilationOptions(OutputKind.ConsoleApplication). 25 | WithMetadataImportOptions(MetadataImportOptions.All); 26 | 27 | var topLevelBinderFlagsProperty = typeof(CSharpCompilationOptions).GetProperty("TopLevelBinderFlags", BindingFlags.Instance | BindingFlags.NonPublic); 28 | topLevelBinderFlagsProperty.SetValue(compilationOptions, (uint)1 << 22); 29 | 30 | var code = File.ReadAllText(Path.Combine(Directory.GetCurrentDirectory(), "..", "..", "..", "..", "CrazyProgram", "Program.cs")); 31 | var compilation = CSharpCompilation.Create("DynamicCrazyProgram", new[] { 32 | CSharpSyntaxTree.ParseText(code) }, metadataReferences, compilationOptions); 33 | 34 | using (var ms = new MemoryStream()) 35 | { 36 | var cr = compilation.Emit(ms); 37 | ms.Seek(0, SeekOrigin.Begin); 38 | var assembly = Assembly.Load(ms.ToArray()); 39 | assembly.EntryPoint.Invoke(null, new object[] { new string[0] }); 40 | } 41 | 42 | Console.ReadKey(); 43 | } 44 | } 45 | } 46 | -------------------------------------------------------------------------------- /CrazyProgram/CrazyProgram.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Exe 5 | netcoreapp2.1 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /CrazyProgram/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Runtime.CompilerServices; 3 | using Calculator; 4 | 5 | [assembly: IgnoresAccessChecksTo("Calculator")] 6 | namespace CrazyProgram 7 | { 8 | public class Program 9 | { 10 | public static void Main(string[] args) 11 | { 12 | var square = new Square(4); // internal type 13 | var calculator = new AreaCalculator(); // internal type 14 | var area = calculator.Calculate(square); // private method 15 | Console.WriteLine($"Square with a side of 4 has an area of {area}"); 16 | } 17 | } 18 | } 19 | 20 | namespace System.Runtime.CompilerServices 21 | { 22 | [AttributeUsage(AttributeTargets.Assembly, AllowMultiple = true)] 23 | public class IgnoresAccessChecksToAttribute : Attribute 24 | { 25 | public IgnoresAccessChecksToAttribute(string assemblyName) 26 | { 27 | AssemblyName = assemblyName; 28 | } 29 | 30 | public string AssemblyName { get; } 31 | } 32 | } 33 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2018 Filip W 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /NoVisibilityChecksDemo.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio 15 4 | VisualStudioVersion = 15.0.27703.2000 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CrazyProgram", "CrazyProgram\CrazyProgram.csproj", "{BEBED0A4-4BFE-4115-A897-03FC132FF8F8}" 7 | EndProject 8 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Calculator", "Calculator\Calculator.csproj", "{4F3B4974-19BD-430E-B55D-6365C470D8AC}" 9 | EndProject 10 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Compiler", "Compiler\Compiler.csproj", "{06359982-9386-43DA-9493-0D169E18AAD8}" 11 | EndProject 12 | Global 13 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 14 | Debug|Any CPU = Debug|Any CPU 15 | Release|Any CPU = Release|Any CPU 16 | EndGlobalSection 17 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 18 | {BEBED0A4-4BFE-4115-A897-03FC132FF8F8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 19 | {BEBED0A4-4BFE-4115-A897-03FC132FF8F8}.Debug|Any CPU.Build.0 = Debug|Any CPU 20 | {BEBED0A4-4BFE-4115-A897-03FC132FF8F8}.Release|Any CPU.ActiveCfg = Release|Any CPU 21 | {BEBED0A4-4BFE-4115-A897-03FC132FF8F8}.Release|Any CPU.Build.0 = Release|Any CPU 22 | {4F3B4974-19BD-430E-B55D-6365C470D8AC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 23 | {4F3B4974-19BD-430E-B55D-6365C470D8AC}.Debug|Any CPU.Build.0 = Debug|Any CPU 24 | {4F3B4974-19BD-430E-B55D-6365C470D8AC}.Release|Any CPU.ActiveCfg = Release|Any CPU 25 | {4F3B4974-19BD-430E-B55D-6365C470D8AC}.Release|Any CPU.Build.0 = Release|Any CPU 26 | {06359982-9386-43DA-9493-0D169E18AAD8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 27 | {06359982-9386-43DA-9493-0D169E18AAD8}.Debug|Any CPU.Build.0 = Debug|Any CPU 28 | {06359982-9386-43DA-9493-0D169E18AAD8}.Release|Any CPU.ActiveCfg = Release|Any CPU 29 | {06359982-9386-43DA-9493-0D169E18AAD8}.Release|Any CPU.Build.0 = Release|Any CPU 30 | EndGlobalSection 31 | GlobalSection(SolutionProperties) = preSolution 32 | HideSolutionNode = FALSE 33 | EndGlobalSection 34 | GlobalSection(ExtensibilityGlobals) = postSolution 35 | SolutionGuid = {BA980DC9-AD51-4EC8-B99B-DC62A88D01E2} 36 | EndGlobalSection 37 | EndGlobal 38 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Strathweb.Samples.CSharp.NoVisibilityChecks 2 | Example of compiling and running C# code without visibility checks. Code for a blog post https://www.strathweb.com/2018/10/no-internalvisibleto-no-problem-bypassing-c-visibility-rules-with-roslyn/ 3 | --------------------------------------------------------------------------------