PreEmptive.Dotfuscator.Xamarin.targets

<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

<!-- 
  Dotfuscator-Xamarin integration file for MSBuild
  Version 1.3.0
  
  Copyright (c) 2017 PreEmptive Solutions, LLC
  This software is licensed under the terms of the PreEmptive Solutions End User License Agreement 
  as published at <https://www.preemptive.com/eula>. You may only use this software if you accept the 
  terms and conditions of that License.
  
  Usage instructions:
  
    Import this file at the end of your .csproj (or other MSBuild project file), e.g.:
    
      <Import Project="path\to\PreEmptive.Dotfuscator.Xamarin.Targets"/>
    
    Then add these properties to the build configurations you want to protect:
        
      * DotfuscatorXamarinEnabled
      
        * Determines whether the Dotfuscator-Xamarin integration will run.
          * If "true", this integration will protect the built assemblies.
          * If "false", the integration is skipped for this build.
        * Defaults to "false".
        
      * DotfuscatorXamarinCliPath
      
        * Path to a command line Dotfuscator interface.
        * Required if DotfuscatorXamarinEnabled is "true".
                                
      * DotfuscatorXamarinConfigFileName
      
        * Name of a Dotfuscator config file in the same directory as the MSBuild project file.
        * Required if DotfuscatorXamarinEnabled is "true".
                                          
      * DotfuscatorXamarinGenerateNewConfigFile
      
        * Determines how the integration acts if the specified config file does not exist.
          * If "true", generate a new config file at that path using relevant MSBuild properties.
          * If "false", error.
        * Defaults to "true".
      
      * DotfuscatorXamarinReportDir
      
        * Path to a directory where DotfuscatorXamarin's reports should be written.
        * Defaults to a subdirectory of "DotfuscatorReports".
    
    Do not put quotes around any property value, nor end any with a slash or backslash.
    
  For details and examples, see <https://www.preemptive.com/obfuscating-xamarin-with-dotfuscator>.
  
-->

  <!--                    -->
  <!-- General properties -->
  <!--                    -->

  <Choose>
    <When Condition="'$(DotfuscatorXamarinEnabled)' == 'true'">

      <Choose>
        <When Condition="'$(TargetPlatformIdentifier)' == 'UAP'">
          <!-- Properties for Universal Windows projects -->
          <PropertyGroup>

            <_DotfuscatorXamarinPlatform>uwp</_DotfuscatorXamarinPlatform>

          </PropertyGroup>
        </When>

        <Otherwise>
          <!-- Properties for other projects (currently Android or iOS) -->
          <PropertyGroup>

            <_DotfuscatorXamarinPlatform>android-or-ios</_DotfuscatorXamarinPlatform>

            <PrepareForRunDependsOn>$(PrepareForRunDependsOn);DotfuscatorXamarin_Build</PrepareForRunDependsOn>

          </PropertyGroup>
        </Otherwise>
      </Choose>

      <!-- Properties for all projects -->
      <PropertyGroup>

        <BuildDependsOn>DotfuscatorXamarin_Validate;$(BuildDependsOn)</BuildDependsOn>
        <CleanDependsOn>$(CleanDependsOn);DotfuscatorXamarin_Clean</CleanDependsOn>

        <!-- This sets the message importance for calls to the Message task. -->
        <!-- Inline tasks that log have their own settings (taskImportance). -->
        <_DotfuscatorXamarinDebugImportance>low</_DotfuscatorXamarinDebugImportance>

        <_DotfuscatorXamarinFinalOutputDir>$(OutputPath.TrimEnd('\').TrimEnd('/'))</_DotfuscatorXamarinFinalOutputDir>
        <DotfuscatorXamarinReportDir Condition="'$(DotfuscatorXamarinReportDir)' == ''">DotfuscatorReports\$(_DotfuscatorXamarinFinalOutputDir.Replace("bin\", ""))</DotfuscatorXamarinReportDir>

        <_DotfuscatorXamarinIntermediateDir>$(IntermediateOutputPath)DotfuscatorXamarin</_DotfuscatorXamarinIntermediateDir>
        <_DotfuscatorXamarinInputDirName>dfin</_DotfuscatorXamarinInputDirName>
        <_DotfuscatorXamarinInputDir>$(_DotfuscatorXamarinIntermediateDir)\$(_DotfuscatorXamarinInputDirName)</_DotfuscatorXamarinInputDir>
        <_DotfuscatorXamarinOutputDirName>dfout</_DotfuscatorXamarinOutputDirName>
        <_DotfuscatorXamarinOutputDir>$(_DotfuscatorXamarinIntermediateDir)\$(_DotfuscatorXamarinOutputDirName)</_DotfuscatorXamarinOutputDir>
        <_DotfuscatorXamarinConfigTemplatePath>$(_DotfuscatorXamarinIntermediateDir)\Template.dfconfig</_DotfuscatorXamarinConfigTemplatePath>

        <!-- The Dotfuscator config file expresses paths as relative to the file's directory. MSBuild expresses paths as relative to the project's directory. -->
        <!-- This is why we require the Dotfuscator config to be in the project directory. -->
        <_DotfuscatorXamarinCliProperties>/p:InDir="$(_DotfuscatorXamarinInputDir)",OutDir="$(_DotfuscatorXamarinOutputDir)",ReportDir="$(DotfuscatorXamarinReportDir)"</_DotfuscatorXamarinCliProperties>

        <_DotfuscatorXamarinValidationHelpLink>For help, see &lt;https://www.preemptive.com/obfuscating-xamarin-with-dotfuscator&gt;.</_DotfuscatorXamarinValidationHelpLink>
      </PropertyGroup>
    </When>
  </Choose>

  <!--                      -->
  <!-- Pre-build validation -->
  <!--                      -->

  <Choose>

    <!-- These first items are just for validation; we'll error on the first one. -->

    <When Condition="'$(DotfuscatorXamarinCliPath)' == ''">
      <PropertyGroup>
        <_DotfuscatorXamarinRunTarget>assertion_failure</_DotfuscatorXamarinRunTarget>
        <_DotfuscatorXamarinValidationError>When the DotfuscatorXamarinEnabled property is 'true', a path to a Dotfuscator command line interface must be specified in the DotfuscatorXamarinCliPath property.</_DotfuscatorXamarinValidationError>
      </PropertyGroup>
    </When>
    <When Condition="!Exists('$(DotfuscatorXamarinCliPath)')">
      <PropertyGroup>
        <_DotfuscatorXamarinRunTarget>assertion_failure</_DotfuscatorXamarinRunTarget>
        <_DotfuscatorXamarinValidationError>When the DotfuscatorXamarinEnabled property is 'true', the Dotfuscator command line interface specified by DotfuscatorXamarinCliPath ('$(DotfuscatorXamarinCliPath)') must exist.</_DotfuscatorXamarinValidationError>
      </PropertyGroup>
    </When>
    <When Condition="'$(DotfuscatorXamarinConfigFileName)' == ''">
      <PropertyGroup>
        <_DotfuscatorXamarinRunTarget>assertion_failure</_DotfuscatorXamarinRunTarget>
        <_DotfuscatorXamarinValidationError>When the DotfuscatorXamarinEnabled property is 'true', a name of a Dotfuscator config file must be specified in the DotfuscatorXamarinConfigFileName property.</_DotfuscatorXamarinValidationError>
      </PropertyGroup>
    </When>

    <!-- The remaining items determine what to do with the config file (use existing? create new? error?). -->

    <When Condition="Exists('$(DotfuscatorXamarinConfigFileName)')">
      <!-- Config file exists -->
      <PropertyGroup>
        <_DotfuscatorXamarinRunTarget>_DotfuscatorXamarin_RunNormally</_DotfuscatorXamarinRunTarget>
      </PropertyGroup>
    </When>
    <When Condition="'$(DotfuscatorXamarinGenerateNewConfigFile)' == 'false'">
      <!-- Config file doesn't exist, and we're explicitly told to not create one -->
      <PropertyGroup>
        <_DotfuscatorXamarinRunTarget>assertion_failure</_DotfuscatorXamarinRunTarget>
        <_DotfuscatorXamarinValidationError>When the DotfuscatorXamarinEnabled property is 'true' and the DotfuscatorXamarinGenerateNewConfigFile property is 'false', the config file specified by DotfuscatorXamarinConfigFileName ('$(DotfuscatorXamarinConfigFileName)') must exist.</_DotfuscatorXamarinValidationError>
      </PropertyGroup>
    </When>
    <Otherwise>
      <!-- Config file doesn't exist, and we are allowed to create one -->
      <PropertyGroup>
        <_DotfuscatorXamarinRunTarget>_DotfuscatorXamarin_RunAndCreateConfig</_DotfuscatorXamarinRunTarget>
      </PropertyGroup>
    </Otherwise>

  </Choose>

  <Target Name="DotfuscatorXamarin_Validate">

    <Error Condition="'$(_DotfuscatorXamarinValidationError)' != ''"
           Text="$(_DotfuscatorXamarinValidationError) $(_DotfuscatorXamarinValidationHelpLink)"
           File="$(MSBuildProjectFile)"/>

  </Target>

  <!--                    -->
  <!-- Build entry points -->
  <!--                    -->

  <Target Name="DotfuscatorXamarin_Build"
          DependsOnTargets="DotfuscatorXamarin_Validate;
                            DotfuscatorXamarin_Prepare;
                            DotfuscatorXamarin_Protect;
                            DotfuscatorXamarin_Update"/>

  <Target Name="DotfuscatorXamarin_Build_UWP"
          Condition="'$(_DotfuscatorXamarinPlatform)' == 'uwp'"
          BeforeTargets="_ComputeAppxPackagePayload"
          DependsOnTargets="DotfuscatorXamarin_Build"/>

  <!--               -->
  <!-- Prepare phase -->
  <!--               -->

  <Target Name="DotfuscatorXamarin_Prepare"
          DependsOnTargets="_DotfuscatorXamarin_DetermineFiles;
                            _DotfuscatorXamarin_CopyInputs"/>

  <Target Name="_DotfuscatorXamarin_DetermineFiles">

    <!-- First, get an item set of files that were copied to the bin directory. -->
    <ItemGroup>

      <!-- Mimic _CopyFilesMarkedCopyLocal. -->
      <_DotfuscatorXamarinOriginalFiles Include="@(ReferenceCopyLocalPaths)"
                                        Condition="'$(UseCommonOutputDirectory)' != 'true'">
        <Destination>%(ReferenceCopyLocalPaths.DestinationSubDirectory)%(ReferenceCopyLocalPaths.Filename)%(ReferenceCopyLocalPaths.Extension)</Destination>
      </_DotfuscatorXamarinOriginalFiles>

      <!-- Mimic _CopyOutOfDateSourceItemsToOutputDirectory. -->
      <_DotfuscatorXamarinOriginalFiles Include="@(_SourceItemsToCopyToOutputDirectory)">
        <Destination>%(_SourceItemsToCopyToOutputDirectory.TargetPath)</Destination>
      </_DotfuscatorXamarinOriginalFiles>

      <!-- Mimic _CopyOutOfDateSourceItemsToOutputDirectoryAlways. -->
      <_DotfuscatorXamarinOriginalFiles Include="@(_SourceItemsToCopyToOutputDirectoryAlways)">
        <Destination>%(_SourceItemsToCopyToOutputDirectoryAlways.TargetPath)</Destination>
      </_DotfuscatorXamarinOriginalFiles>

      <!-- Mimic _CopyAppConfigFile. -->
      <_DotfuscatorXamarinOriginalFiles Include="@(AppConfigWithTargetPath)">
        <Destination>%(AppConfigWithTargetPath.TargetPath)</Destination>
      </_DotfuscatorXamarinOriginalFiles>

      <!-- Mimic _CopyManifestFiles. -->
      <_DotfuscatorXamarinOriginalFiles Include="@(ApplicationManifest)"
                                        Condition="'$(GenerateClickOnceManifests)'=='true' or '$(_DeploymentCopyApplicationManifest)'=='true'">
        <Destination>%(ApplicationManifest.Filename)%(ApplicationManifest.Extension)</Destination>
      </_DotfuscatorXamarinOriginalFiles>
      <_DotfuscatorXamarinOriginalFiles Include="@(DeployManifest)"
                                        Condition="'$(GenerateClickOnceManifests)'=='true'">
        <Destination>%(DeployManifest.Filename)%(DeployManifest.Extension)</Destination>
      </_DotfuscatorXamarinOriginalFiles>

      <!-- Mimic CopyFilesToOutputDirectory itself. -->
      <_DotfuscatorXamarinOriginalFiles Include="@(IntermediateAssembly)"
                                        Condition="'$(CopyBuildOutputToOutputDirectory)' == 'true' and '$(SkipCopyBuildProduct)' != 'true'">
        <Destination>%(IntermediateAssembly.Filename)%(IntermediateAssembly.Extension)</Destination>
      </_DotfuscatorXamarinOriginalFiles>
      <_DotfuscatorXamarinOriginalFiles Include="@(AddModules)"
                                        Condition="'@(AddModules)' != ''">
        <Destination>%(AddModules.Filename)%(AddModules.Extension)</Destination>
      </_DotfuscatorXamarinOriginalFiles>
      <_DotfuscatorXamarinOriginalFiles Include="$(IntermediateOutputPath)$(_SGenDllName)"
                                        Condition="'$(_SGenDllCreated)'=='true'">
        <Destination>$(_SGenDllName)</Destination>
      </_DotfuscatorXamarinOriginalFiles>
      <_DotfuscatorXamarinOriginalFiles Include="@(_DebugSymbolsIntermediatePath)"
                                        Condition="'$(_DebugSymbolsProduced)'=='true' and '$(SkipCopyingSymbolsToOutputDirectory)' != 'true' and '$(CopyOutputSymbolsToOutputDirectory)'=='true'">
        <Destination>%(_DebugSymbolsIntermediatePath.Filename)%(_DebugSymbolsIntermediatePath.Extension)</Destination>
      </_DotfuscatorXamarinOriginalFiles>
      <!-- Don't bother mimicing XML documentation file copy. -->
      <_DotfuscatorXamarinOriginalFiles Include="@(IntermediateSatelliteAssembliesWithTargetPath)"
                                        Condition="'@(IntermediateSatelliteAssembliesWithTargetPath)' != ''">
        <Destination>%(IntermediateSatelliteAssembliesWithTargetPath.Culture)\$(TargetName).resources.dll</Destination>
      </_DotfuscatorXamarinOriginalFiles>
      <!-- Don't bother mimicing COM file copy. -->
      <_DotfuscatorXamarinOriginalFiles Include="@(WinMDExpArtifacts)"
                                        Condition="'$(SkipCopyWinMDArtifact)' != 'true' and '@(WinMDExpArtifacts)' != ''">
        <Destination>%(WinMDExpArtifacts.Filename)%(WinMDExpArtifacts.Extension)</Destination>
      </_DotfuscatorXamarinOriginalFiles>
      <!-- MDB files will be generated in the _DotfuscatorXamarinFinalOutputDir after we finish building. -->

    </ItemGroup>

    <ItemGroup>
      <!-- Then, take those files and set them up with their paths for the rest of the Dotfuscator part of the pipeline. -->
      <_DotfuscatorXamarinFiles Include="@(_DotfuscatorXamarinOriginalFiles)">
        <Original>%(_DotfuscatorXamarinOriginalFiles.Identity)</Original>
        <DfInput>$(_DotfuscatorXamarinInputDir)\%(_DotfuscatorXamarinOriginalFiles.Destination)</DfInput>
        <DfOutput>$(_DotfuscatorXamarinOutputDir)\%(_DotfuscatorXamarinOriginalFiles.Destination)</DfOutput>
        <Final>$(_DotfuscatorXamarinFinalOutputDir)\%(_DotfuscatorXamarinOriginalFiles.Destination)</Final>
        <FinalAbsolute>$([System.IO.Path]::GetFullPath('$(_DotfuscatorXamarinFinalOutputDir)'))\%(_DotfuscatorXamarinOriginalFiles.Destination)</FinalAbsolute>
        <FilenameAndExtension>%(Filename)%(Extension)</FilenameAndExtension>
        <RelativePath>%(_DotfuscatorXamarinOriginalFiles.Destination)</RelativePath>
      </_DotfuscatorXamarinFiles>
    </ItemGroup>

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text="Files seen by Dotfuscator-Xamarin integration: "/>

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text=" '%(_DotfuscatorXamarinFiles.Original)' >> '%(_DotfuscatorXamarinFiles.Final)'"/>

    <!-- Because MSBuild can't associate two different metadata as 1-to-1, only the identity to a metadata, we do this for the partial copy targets. -->
    <ItemGroup>
      <_DotfuscatorXamarinCopyInputsMap Include="@(_DotfuscatorXamarinFiles -> '%(Original)')">
        <Out>%(_DotfuscatorXamarinFiles.DfInput)</Out>
      </_DotfuscatorXamarinCopyInputsMap>
      <_DotfuscatorXamarinCopyOutputsMap Include="@(_DotfuscatorXamarinFiles -> '%(DfOutput)')">
        <Out>%(_DotfuscatorXamarinFiles.Final)</Out>
      </_DotfuscatorXamarinCopyOutputsMap>
    </ItemGroup>

  </Target>

  <Target Name="_DotfuscatorXamarin_CopyInputs"
          DependsOnTargets="_DotfuscatorXamarin_DetermineFiles"
          Inputs="@(_DotfuscatorXamarinCopyInputsMap)"
          Outputs="@(_DotfuscatorXamarinCopyInputsMap -> '%(Out)')">

    <Copy
      SourceFiles="@(_DotfuscatorXamarinCopyInputsMap)"
      DestinationFiles="@(_DotfuscatorXamarinCopyInputsMap -> '%(Out)')"/>

  </Target>

  <!--               -->
  <!-- Protect phase -->
  <!--               -->

  <Target Name="DotfuscatorXamarin_Protect"
          DependsOnTargets="DotfuscatorXamarin_Prepare"
          Inputs="@(_DotfuscatorXamarinFiles -> '%(DfInput)');$(DotfuscatorXamarinConfigFileName)"
          Outputs="@(_DotfuscatorXamarinFiles -> '%(DfOutput)')">

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text="Removing any prior Dotfuscator outputs..."/>
    <RemoveDir
      Directories="$(_DotfuscatorXamarinOutputDir)"/>

    <!-- Call appropriate run strategy for Dotfuscator. -->
    <CallTarget
      Targets="$(_DotfuscatorXamarinRunTarget)"/>

    <!-- Copy and touch other files from dfin to dfout so incremental builds work. -->
    <Copy
      SourceFiles="%(_DotfuscatorXamarinFiles.DfInput)"
      DestinationFiles="%(_DotfuscatorXamarinFiles.DfOutput)"
      Condition="!Exists('%(_DotfuscatorXamarinFiles.DfOutput)')"/>

    <Touch
      Files="%(_DotfuscatorXamarinFiles.DfOutput)"/>

  </Target>

  <Target Name="_DotfuscatorXamarin_RunNormally"
          DependsOnTargets="DotfuscatorXamarin_Prepare">

    <Message
      Importance="high"
      Text="Running Dotfuscator with config file '$(DotfuscatorXamarinConfigFileName)'..."/>

    <PropertyGroup>
      <_DotfuscatorXamarinCommand>"$(DotfuscatorXamarinCliPath)" $(_DotfuscatorXamarinCliProperties) "$(DotfuscatorXamarinConfigFileName)"</_DotfuscatorXamarinCommand>
    </PropertyGroup>

    <Exec
      Command="$(_DotfuscatorXamarinCommand)"
      StandardOutputImportance="normal"
      StandardErrorImportance="high"/>

    <Message
      Importance="high"
      Text="Finished running Dotfuscator."/>

  </Target>

  <!-- Determines what assemblies should be used for an initial Dotfuscator run
       when there is no existing config file. -->
  <UsingTask TaskName="_DotfuscatorXamarin_DetermineDefaultInputsTask"
             TaskFactory="CodeTaskFactory"
             AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
    <ParameterGroup>
      <!-- Required Inputs -->

      <!-- The set of files seen by this integration -->
      <DotfuscatorFiles ParameterType="Microsoft.Build.Framework.ITaskItem[]" Required="true" />

      <!-- The assembly being built for this project -->
      <IntermediateAssembly ParameterType="Microsoft.Build.Framework.ITaskItem[]" Required="true" />

      <!-- The project file of the assembly being built for this project-->
      <OriginalProjectFile ParameterType="System.String" Required="true"/>
      <!-- Outputs -->

      <!-- The set of files that should be used as inputs to Dotfuscator -->
      <DefaultInputs ParameterType="Microsoft.Build.Framework.ITaskItem[]" Output="true" />

    </ParameterGroup>
    <Task>
      <Reference Include="System.Xml" />
      <Reference Include="System.Xml.Linq"/>
      <Using Namespace="System" />
      <Using Namespace="System.IO" />
      <Using Namespace="System.Linq" />
      <Using Namespace="System.Xml.Linq" />
      <Code Type="Fragment" Language="cs">
        <![CDATA[
            var taskImportance = MessageImportance.Low;
            var result = new List<ITaskItem>();
            if (IntermediateAssembly.Count() != 1)
            {
                throw new ArgumentException(
                    "Expecting one and only one IntermediateAssembly, had " + IntermediateAssembly.Count(),
                    "IntermediateAssembly");
            }
            var theIntermediateAssembly = IntermediateAssembly.Single();
            var intermediateAssemblyFilenameAndExtension = theIntermediateAssembly.GetMetadata("Filename") + theIntermediateAssembly.GetMetadata("Extension");
            Log.LogMessage(taskImportance, "intermediateAssemblyFilenameAndExtension: {0}", intermediateAssemblyFilenameAndExtension);

            //create queue of project files to check for references, starting with the OriginalProjectFile
            Queue<String> projectFiles = new Queue<String>();
            projectFiles.Enqueue(OriginalProjectFile);
            var ns = "{http://schemas.microsoft.com/developer/msbuild/2003}";
            while (projectFiles.Count > 0)
            {
                //Load the project file
                var currentProjectFile = projectFiles.Dequeue();
                Log.LogMessage(taskImportance, "Checking {0} for references", currentProjectFile);
                XDocument document = XDocument.Load(currentProjectFile);

                //Read the references
                var references = document.Element(ns + "Project")
                    .Elements(ns + "ItemGroup").Elements(ns + "ProjectReference")
                    .Attributes("Include")
                    .Select(path => path.Value);

                //Add new references found to the queue
                foreach(var reference in references){   
                    var projectFile = reference;
                    
                    var currentProjectFileDirectory = Path.GetDirectoryName(currentProjectFile);
                    projectFile = Path.GetFullPath(Path.Combine(currentProjectFileDirectory,projectFile));
                    
                    if(File.Exists(projectFile)){
                       projectFiles.Enqueue(projectFile);
                    }
                    
                    else{
                       throw new Exception("Unable to find referenced project file: "+projectFile);
                    }
                }

                //Add the output assembly for the currentProjectFile to results
                var assembly = document.Element(ns + "Project")
                    .Element(ns + "PropertyGroup")
                    .Element(ns + "AssemblyName")
                    .Value;
                var outputType = document.Element(ns + "Project")
                    .Element(ns + "PropertyGroup")
                    .Element(ns + "OutputType")
                    .Value;
                var extension = (outputType == "Library") ? ".dll" : ".exe";
                Log.LogMessage(taskImportance, "Adding as input to Dotfuscator: {0}", assembly + extension);
                result.AddRange(DotfuscatorFiles.Where(file => file.GetMetadata("FilenameAndExtension").Equals(assembly + extension)));
            }
            DefaultInputs = result.ToArray();
]]>
      </Code>
    </Task>
  </UsingTask>

  <PropertyGroup>
    <_DotfuscatorXamarinConfigTemplateLines>
      <![CDATA[
<?xml version="1.0" encoding="utf-8" standalone="no"?>
<!DOCTYPE dotfuscator SYSTEM "http://www.preemptive.com/dotfuscator/dtd/dotfuscator_v2.3.dtd">
<dotfuscator version="2.3">
  <global>
    <option>monocompat</option>
  </global>
  <input>
    <loadpaths />
    <asmlist>
    </asmlist>
  </input>
  <output>
    <file dir="${configdir}\${OutDir}" />
  </output>
  <renaming>
    <option>xmlserialization</option>
    <mapping>
      <mapoutput overwrite="true">
        <file dir="${configdir}\${ReportDir}" name="Renaming.xml" />
      </mapoutput>
    </mapping>
    <referencerulelist>
      <referencerule rulekey="{6655B10A-FD58-462d-8D4F-5B1316DFF0FF}" />
      <referencerule rulekey="{7D9C8B02-2383-420f-8740-A9760394C2C1}" />
      <referencerule rulekey="{229FD6F8-5BCC-427b-8F72-A7A413ECDF1A}" />
      <referencerule rulekey="{2B7E7C8C-A39A-4db8-9DFC-6AFD38509061}" />
      <referencerule rulekey="{494EA3BA-B947-44B5-BEE8-A11CC85AAF9B}" />
      <referencerule rulekey="{89769974-93E9-4e71-8D92-BE70E855ACFC}" />
      <referencerule rulekey="{4D81E604-A545-4631-8B6D-C3735F793F80}" />
    </referencerulelist>
  </renaming>
  <controlflow level="high" />
  <removal>
    <option>disable</option>
    <removalreport overwrite="true">
      <file dir="${configdir}\${ReportDir}" name="Removal.xml" />
    </removalreport>
    <referencerulelist />
  </removal>
  <sos mergeruntime="true">
    <option>version:v4</option>
    <option>disable</option>
    <option>dontsendtamper</option>
  </sos>
  <smartobfuscation>
    <smartobfuscationreport verbosity="all" overwrite="true">
      <file dir="${configdir}\${ReportDir}" name="SmartObfuscation.xml" />
    </smartobfuscationreport>
  </smartobfuscation>
</dotfuscator>
              ]]>
    </_DotfuscatorXamarinConfigTemplateLines>
  </PropertyGroup>

  <!-- Set project properties in the just-generated Dotfuscator config file. -->
  <UsingTask TaskName="_DotfuscatorXamarin_SetProjectPropsTask"
             TaskFactory="CodeTaskFactory"
             AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
    <ParameterGroup>
      <!-- Required Inputs -->

      <!-- The Dotfuscator config file to read from -->
      <InputPath ParameterType="System.String" Required="true" />

      <!-- The Dotfuscator config file to write to -->
      <OutputPath ParameterType="System.String" Required="true" />

      <!-- The value for the InDir project property -->
      <InDirValue ParameterType="System.String" Required="true" />

      <!-- The value for the OutDir project property -->
      <OutDirValue ParameterType="System.String" Required="true" />

      <!-- The value for the ReportDir project property -->
      <ReportDirValue ParameterType="System.String" Required="true" />
    </ParameterGroup>
    <Task>
      <Reference Include="System.Xml"/>
      <Reference Include="System.Xml.Linq"/>
      <Using Namespace="System.Xml.Linq"/>
      <Code Type="Fragment" Language="cs">
        <![CDATA[
var doc = XDocument.Load(InputPath);
doc.DocumentType.InternalSubset = null;

var propertylistElement = new XElement("propertylist");

propertylistElement.Add(new XElement(
    "property",
        new XAttribute("name", "InDir"),
        new XAttribute("value", InDirValue)
    ));
propertylistElement.Add(new XElement(
    "property",
        new XAttribute("name", "OutDir"),
        new XAttribute("value", OutDirValue)
    ));
propertylistElement.Add(new XElement(
    "property",
        new XAttribute("name", "ReportDir"),
        new XAttribute("value", ReportDirValue)
    ));

doc.Root.AddFirst(propertylistElement);

doc.Save(OutputPath);
]]>
      </Code>
    </Task>
  </UsingTask>

  <Target Name="_DotfuscatorXamarin_RunAndCreateConfig"
          DependsOnTargets="DotfuscatorXamarin_Prepare">

    <_DotfuscatorXamarin_DetermineDefaultInputsTask
      DotfuscatorFiles="@(_DotfuscatorXamarinFiles)"
      IntermediateAssembly="@(IntermediateAssembly)"
      OriginalProjectFile="$(MSBuildProjectFullPath)">
      <Output TaskParameter="DefaultInputs" ItemName="_DotfuscatorXamarinDefaultInputs" />
    </_DotfuscatorXamarin_DetermineDefaultInputsTask>

    <WriteLinesToFile
      File="$(_DotfuscatorXamarinConfigTemplatePath)"
      Lines="$(_DotfuscatorXamarinConfigTemplateLines)"
      Overwrite="true"/>

    <Message
      Importance="high"
      Text="Running Dotfuscator with a new config file based on project references..."/>

    <PropertyGroup>
      <_DotfuscatorXamarinCommand>"$(DotfuscatorXamarinCliPath)" $(_DotfuscatorXamarinCliProperties) "$(_DotfuscatorXamarinConfigTemplatePath)" /in:@(_DotfuscatorXamarinDefaultInputs->'+"${configdir}\${InDir}\%(FilenameAndExtension)"',',') /makeconfig:"$(DotfuscatorXamarinConfigFileName)"</_DotfuscatorXamarinCommand>
    </PropertyGroup>

    <Exec
      Command="$(_DotfuscatorXamarinCommand)"
      StandardOutputImportance="normal"
      StandardErrorImportance="high"
      ContinueOnError="ErrorAndContinue">
      <Output TaskParameter="ExitCode" PropertyName="_DotfuscatorXamarinExitCode" />
    </Exec>

    <Message
      Importance="high"
      Text="Finished running Dotfuscator with a new config file."/>

    <_DotfuscatorXamarin_SetProjectPropsTask
      InputPath="$(DotfuscatorXamarinConfigFileName)"
      OutputPath="$(DotfuscatorXamarinConfigFileName)"
      InDirValue="$(_DotfuscatorXamarinInputDir)"
      OutDirValue="$(_DotfuscatorXamarinOutputDir)"
      ReportDirValue="$(DotfuscatorXamarinReportDir)"/>

    <Warning
      Text="A new Dotfuscator config file was generated because it did not exist: '$(DotfuscatorXamarinConfigFileName)'."
      File="$(MSBuildProjectFile)"/>

    <Error Condition="'$(_DotfuscatorXamarinExitCode)' != '0'"
           Text="The initial run of Dotfuscator failed (exit code '$(_DotfuscatorXamarinExitCode)'). A new Dotfuscator config file, '$(DotfuscatorXamarinConfigFileName)', has been generated, but may not build correctly."
           File="$(MSBuildProjectFile)"/>

  </Target>

  <!--              -->
  <!-- Update phase -->
  <!--              -->

  <Target Name="DotfuscatorXamarin_Update"
          DependsOnTargets="DotfuscatorXamarin_Protect;
                            _DotfuscatorXamarin_DeletePotentiallyStaleDebugSymbols;
                            _DotfuscatorXamarin_CopyOutputs;
                            _DotfuscatorXamarin_UpdateItems"/>

  <Target Name="_DotfuscatorXamarin_DeletePotentiallyStaleDebugSymbols"
          DependsOnTargets="DotfuscatorXamarin_Protect">

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text="Removing debugging symbol files from '$(_DotfuscatorXamarinFinalOutputDir)' because they may be out-of-date with respect to Dotfuscator's protection..."/>

    <ItemGroup>
      <_DotfuscatorXamarinUnobfuscatedDebugSymbols Include="$(_DotfuscatorXamarinFinalOutputDir)\**\*.pdb"/>
      <_DotfuscatorXamarinUnobfuscatedDebugSymbols Include="$(_DotfuscatorXamarinFinalOutputDir)\**\*.mdb"/>
    </ItemGroup>

    <Delete
      Files="@(_DotfuscatorXamarinUnobfuscatedDebugSymbols)"/>

  </Target>

  <Target Name="_DotfuscatorXamarin_CopyOutputs"
          DependsOnTargets="DotfuscatorXamarin_Protect;
                            _DotfuscatorXamarin_DeletePotentiallyStaleDebugSymbols"
          Inputs="@(_DotfuscatorXamarinCopyOutputsMap)"
          Outputs="@(_DotfuscatorXamarinCopyOutputsMap -> '%(Out)')">

    <Copy
      SourceFiles="@(_DotfuscatorXamarinCopyOutputsMap)"
      DestinationFiles="@(_DotfuscatorXamarinCopyOutputsMap -> '%(Out)')"/>

  </Target>

  <Target Name="_DotfuscatorXamarin_UpdateItems"
          DependsOnTargets="DotfuscatorXamarin_Protect;
                            _DotfuscatorXamarin_CopyOutputs">

    <!-- A marker target for all UpdateItem targets to attach to via BeforeTargets -->

  </Target>

  <!-- Joins the Dotfuscator files set (_DotfuscatorXamarinFiles) against an item set, 
       then provides an updated version of the latter set. -->
  <UsingTask TaskName="_DotfuscatorXamarin_UpdateItemsTask"
             TaskFactory="CodeTaskFactory"
             AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
    <ParameterGroup>
      <!-- Required Inputs -->

      <!-- The set of files seen by this integration -->
      <DotfuscatorFiles Required="true" ParameterType="Microsoft.Build.Framework.ITaskItem[]"  />

      <!-- The existing item set to match against -->
      <OldItemSet Required="true" ParameterType="Microsoft.Build.Framework.ITaskItem[]" />

      <!-- Semicolon-separated list of metadata keys on DotfuscatorFiles to use when joining -->
      <MatchOnFileMetadataKeys Required="true" ParameterType="System.String" />

      <!-- Semicolon-separated list of metadata keys on OldItemSet to use when joining -->
      <MatchOnItemMetadataKeys Required="true" ParameterType="System.String" />

      <!-- Semicolon-separated list of metadata keys on DotfuscatorFiles to use for the updated entry's identity -->
      <NewItemIdentityFromFileMetadataKeys Required="true" ParameterType="System.String" />

      <!-- Optional Inputs -->

      <!-- If set, also add a Metadata with the given name to updated entries, with the value equalling the new identity -->
      <NewItemMetadataKeyMirrorsIdentity Required="false" ParameterType="System.String" />

      <!-- Outputs -->

      <!-- The updated item set -->
      <NewItemList ParameterType="Microsoft.Build.Framework.ITaskItem[]" Output="true"/>

    </ParameterGroup>
    <Task>
      <Code Type="Fragment" Language="cs">
        <![CDATA[
var taskImportance = MessageImportance.Low;

// Define a helper lambda:
// Takes in 
//      an item
//      a semicolon separated list of metadata keys
// Returns the concatenation of the values of those metadata
Func<ITaskItem,String,String> resolveMetadata = (item, metadataKeys) => 
{
    var builder = new StringBuilder();
    foreach (var metadataKey in metadataKeys.Split(';'))
    {
        builder.Append(item.GetMetadata(metadataKey));
    }
    var toRet = builder.ToString();
    Log.LogMessage(taskImportance, "  [Metadata('{0}','{1}') = '{2}']", item.ItemSpec, metadataKeys, toRet);
    return toRet;
};

// Iterate the existing item list for debugging
foreach (var item in OldItemSet)
{
    Log.LogMessage(taskImportance, "Old: '{0}'", item.ItemSpec);
    foreach (String metadataKey in item.MetadataNames)
    {
        Log.LogMessage(taskImportance, " {0} : '{1}'", metadataKey, item.GetMetadata(metadataKey));
    }
}

// Find old list entries which correspond to a file we handled.
// Create updated identities based on Dotfuscator's file copying, but keep the other metadata.
var changedItemsOld = new List<ITaskItem>();
var changedItemsNew = Enumerable.Join(
        DotfuscatorFiles,
        OldItemSet,
        file => resolveMetadata(file, MatchOnFileMetadataKeys),
        oldItem => resolveMetadata(oldItem, MatchOnItemMetadataKeys),
        (file, oldItem) =>
        {
            changedItemsOld.Add(oldItem);

            var newId = resolveMetadata(file, NewItemIdentityFromFileMetadataKeys);
            var newItem = new TaskItem(newId);
            oldItem.CopyMetadataTo(newItem);

            Log.LogMessage(taskImportance, " Matched '{0}' to '{1}', updating latter to '{2}'", 
                file.ItemSpec, oldItem.ItemSpec, newItem.ItemSpec);

            if (!String.IsNullOrEmpty(NewItemMetadataKeyMirrorsIdentity))
            {
                newItem.SetMetadata(NewItemMetadataKeyMirrorsIdentity, newId);
            }
                        
            return newItem;
        });
            
// The updated items are combined with the items that did not change
var unchangedItems = OldItemSet.Except(changedItemsOld);
NewItemList = changedItemsNew.Union(unchangedItems).ToArray();

// Iterate the new item list for debugging
foreach (var item in NewItemList)
{
    Log.LogMessage(taskImportance, "New: '{0}'", item.ItemSpec);
    foreach (String metadataKey in item.MetadataNames)
    {
        Log.LogMessage(taskImportance, " {0} : '{1}'", metadataKey, item.GetMetadata(metadataKey));
    }
}
]]>
      </Code>
    </Task>
  </UsingTask>

  <Target Name="_DotfuscatorXamarin_UpdateItem_ReferencePath"
          BeforeTargets="_DotfuscatorXamarin_UpdateItems">

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text="Updating ReferencePath item to reflect protected Dotfuscator files..."/>

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text=" Before: @(ReferencePath)"/>

    <ItemGroup>
      <_DotfuscatorXamarinNewItems Remove="@(_DotfuscatorXamarinNewItems)" />
    </ItemGroup>

    <_DotfuscatorXamarin_UpdateItemsTask
      DotfuscatorFiles="@(_DotfuscatorXamarinFiles)"
      OldItemSet="@(ReferencePath)"
      MatchOnFileMetadataKeys="Original"
      MatchOnItemMetadataKeys="Identity"
      NewItemIdentityFromFileMetadataKeys="FinalAbsolute">
      <Output TaskParameter="NewItemList" ItemName="_DotfuscatorXamarinNewItems" />
    </_DotfuscatorXamarin_UpdateItemsTask>

    <ItemGroup>
      <ReferencePath Remove="@(ReferencePath)" />
      <ReferencePath Include="@(_DotfuscatorXamarinNewItems)" />
    </ItemGroup>

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text=" After: @(ReferencePath)"/>

  </Target>

  <Target Name="_DotfuscatorXamarin_UpdateItem_PackagingOutputs"
          Condition="'$(_DotfuscatorXamarinPlatform)' == 'uwp'"
          BeforeTargets="_DotfuscatorXamarin_UpdateItems">

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text="Updating PackagingOutputs item to reflect protected Dotfuscator files..."/>
    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text=" Before: %(PackagingOutputs.ProjectName).%(PackagingOutputs.OutputGroup) : '%(PackagingOutputs.Identity)' -> '%(PackagingOutputs.TargetPath)'"/>

    <ItemGroup>
      <_DotfuscatorXamarinNewItems Remove="@(_DotfuscatorXamarinNewItems)" />
    </ItemGroup>

    <_DotfuscatorXamarin_UpdateItemsTask
      DotfuscatorFiles="@(_DotfuscatorXamarinFiles)"
      OldItemSet="@(PackagingOutputs)"
      MatchOnFileMetadataKeys="Original"
      MatchOnItemMetadataKeys="Identity"
      NewItemIdentityFromFileMetadataKeys="FinalAbsolute">
      <Output TaskParameter="NewItemList" ItemName="_DotfuscatorXamarinNewItems" />
    </_DotfuscatorXamarin_UpdateItemsTask>

    <ItemGroup>
      <PackagingOutputs Remove="@(PackagingOutputs)" />
      <PackagingOutputs Include="@(_DotfuscatorXamarinNewItems)" />
    </ItemGroup>

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text=" After: %(PackagingOutputs.ProjectName).%(PackagingOutputs.OutputGroup) : '%(PackagingOutputs.Identity)' -> '%(PackagingOutputs.TargetPath)'"/>

  </Target>

  <!--                     -->
  <!-- "Late" item updates -->
  <!--                     -->
  <!-- (called at a later stage in the build than DotfuscatorXamarin_Build is) -->

  <Target Name="_DotfuscatorXamarin_UpdateItemLate_AllBuiltProjectOutputs"
          Condition="'$(_DotfuscatorXamarinPlatform)' == 'android-or-ios'"
          AfterTargets="GetBuiltProjectOutputRecursive"
          DependsOnTargets="DotfuscatorXamarin_Build">

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text="Updating AllBuiltProjectOutputs item to reflect protected Dotfuscator files..."/>

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text=" Before: '%(AllBuiltProjectOutputs.Identity)' -> '%(AllBuiltProjectOutputs.FinalOutputPath)'"/>

    <ItemGroup>
      <_DotfuscatorXamarinNewItems Remove="@(_DotfuscatorXamarinNewItems)" />
    </ItemGroup>

    <_DotfuscatorXamarin_UpdateItemsTask
      DotfuscatorFiles="@(_DotfuscatorXamarinFiles)"
      OldItemSet="@(AllBuiltProjectOutputs)"
      MatchOnFileMetadataKeys="FilenameAndExtension"
      MatchOnItemMetadataKeys="Filename;Extension"
      NewItemIdentityFromFileMetadataKeys="FinalAbsolute"
      NewItemMetadataKeyMirrorsIdentity="FinalOutputPath">
      <Output TaskParameter="NewItemList" ItemName="_DotfuscatorXamarinNewItems" />
    </_DotfuscatorXamarin_UpdateItemsTask>

    <ItemGroup>
      <AllBuiltProjectOutputs Remove="@(AllBuiltProjectOutputs)" />
      <AllBuiltProjectOutputs Include="@(_DotfuscatorXamarinNewItems)" />
    </ItemGroup>

    <Message
      Importance="$(_DotfuscatorXamarinDebugImportance)"
      Text=" After : '%(AllBuiltProjectOutputs.Identity)' -> '%(AllBuiltProjectOutputs.FinalOutputPath)'"/>

  </Target>

  <!--           -->
  <!-- Non-build -->
  <!--           -->

  <Target Name="DotfuscatorXamarin_Clean">

    <RemoveDir
      Directories="$(_DotfuscatorXamarinIntermediateDir)"/>

  </Target>

</Project>