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Function ConvertTo-GZipString () { <# .SYNOPSIS Compresses a string with the GZip algorithm .DESCRIPTION Compresses a string with the GZip algorithm and returns the result in a Base64 string .PARAMETER String Any plain text string to be compressed .EXAMPLE dir | Out-String | ConvertTo-GZipString .LINK ConvertFrom-GZipString #> [CmdletBinding()] Param( [Parameter(Mandatory=$True,ValueFromPipeline=$True,ValueFromPipelinebyPropertyName=$True)] $String ) Process { $String | ForEach-Object { $ms = New-Object System.IO.MemoryStream $cs = New-Object System.IO.Compression.GZipStream($ms, [System.IO.Compression.CompressionMode]::Compress) $sw = New-Object System.IO.StreamWriter($cs) $sw.Write($_) $sw.Close() [System.Convert]::ToBase64String($ms.ToArray()) } } } Function ConvertFrom-GZipString () { <# .SYNOPSIS Decompresses a Base64 GZipped string .DESCRIPTION Decompresses a Base64 GZipped string .PARAMETER String A Base64 encoded GZipped string .EXAMPLE $compressedString | ConvertFrom-GZipString .LINK ConvertTo-GZipString #> [CmdletBinding()] Param( [Parameter(Mandatory=$True,ValueFromPipeline=$True,ValueFromPipelinebyPropertyName=$True)] $String ) Process { $String | ForEach-Object { $compressedBytes = [System.Convert]::FromBase64String($_) $ms = New-Object System.IO.MemoryStream $ms.write($compressedBytes, 0, $compressedBytes.Length) $ms.Seek(0,0) | Out-Null $cs = New-Object System.IO.Compression.GZipStream($ms, [System.IO.Compression.CompressionMode]::Decompress) $sr = New-Object System.IO.StreamReader($cs) $sr.ReadToEnd() } } } |