AppHandling/Replace-DependenciesInAppFile.ps1
|
<#
.Synopsis Replaces specified dependencies in an application file .Description Investigates whether the application file contains dependencies to a specific application ID and replaces the dependency if that is the case .Parameter Path Path of the application file to investigate .Parameter Destination Path of the modified application file, where dependencies was replaced (default is to rewrite the original file) .Parameter replaceDependencies A hashtable, describring the dependencies, which needs to be replaced .Example Replace-DependenciesInAppFile -Path c:\temp\myapp.app -replaceDependencies @{ "437dbf0e-84ff-417a-965d-ed2bb9650972" = @{ "id" = "88b7902e-1655-4e7b-812e-ee9f0667b01b"; "name" = "MyBaseApp"; "publisher" = "Freddy Kristiansen"; "minversion" = "1.0.0.0" }} #> Function Replace-DependenciesInAppFile { Param ( [string] $Path, [string] $Destination = $Path, [hashtable] $replaceDependencies ) $memoryStream = $null $fs = $null $tempDir = (Join-Path ([System.IO.Path]::GetTempPath()) ([Guid]::NewGuid().ToString())) + "\" New-Item $tempDir -ItemType Directory | Out-Null try { $fs = [System.IO.File]::OpenRead($Path) $binaryReader = [System.IO.BinaryReader]::new($fs) $magicNumber1 = $binaryReader.ReadUInt32() $metadataSize = $binaryReader.ReadUInt32() $metadataVersion = $binaryReader.ReadUInt32() $packageId = [Guid]::new($binaryReader.ReadBytes(16)) $contentLength = $binaryReader.ReadInt64() $magicNumber2 = $binaryReader.ReadUInt32() if ($magicNumber1 -ne 0x5856414E -or $magicNumber2 -ne 0x5856414E -or $metadataVersion -gt 2 -or $fs.Position + $contentLength -gt $fs.Length) { throw "Unsupported package format" } $memoryStream = [System.IO.MemoryStream]::new() $fs.Seek($metadataSize, [System.IO.SeekOrigin]::Begin) | Out-Null $fs.CopyTo($memoryStream) $memoryStream.Seek(0, [System.IO.SeekOrigin]::Begin) | Out-Null $memoryStream.SetLength($contentLength) $fs.Close() $fs.Dispose() $fs = $null $package = [System.IO.Packaging.Package]::Open($memoryStream, [System.IO.FileMode]::Open, [System.IO.FileAccess]::ReadWrite) $manifestPart = $package.GetPart('/NavxManifest.xml') $manifest = [xml]([System.IO.StreamReader]::new($manifestPart.GetStream())).ReadToEnd() $changes = $false $manifest.Package.Dependencies.GetEnumerator() | % { $dependency = $_ if ($replaceDependencies.ContainsKey($dependency.id)) { $newDependency = $replaceDependencies[$dependency.id] Write-Host "Replacing dependency from $($dependency.id) to $($newDependency.id)" $dependency.id = $newDependency.id $dependency.name = $newDependency.name $dependency.publisher = $newDependency.publisher $dependency.minVersion = $newDependency.minVersion $changes = $true } } if ($changes) { $partStream = $manifestPart.GetStream() $manifest.Save($partStream) $partStream.Flush() $package.Flush() $fs = [System.IO.FileStream]::new($Destination, [System.IO.FileMode]::Create) $binaryWriter = [System.IO.BinaryWriter]::new($fs) $binaryWriter.Write([UInt32](0x5856414E)) $binaryWriter.Write([UInt32](40)) $binaryWriter.Write([UInt32](2)) $binaryWriter.Write($packageId.ToByteArray()) $binaryWriter.Write([UInt64]($memoryStream.Length)) $binaryWriter.Write([UInt32](0x5856414E)) $memoryStream.Seek(0, [System.IO.SeekOrigin]::Begin) | Out-Null $memoryStream.CopyTo($fs) $fs.Close() $fs.Dispose() $fs = $null } else { if ($Path -ne $Destination) { Copy-Item -Path $Path -Destination $Destination -Force } } } finally { if ($fs) { $fs.Close() } if (Test-Path $tempDir) { Remove-Item -Path $tempDir -Recurse -Force } } } Export-ModuleMember -Function Replace-DependenciesInAppFile |