MSIdentityTools

1.1.4

ConvertFrom-SamlSecurityToken.ps1

                                <#

.SYNOPSIS

   Convert Saml Security Token structure to PowerShell object.

.EXAMPLE

    PS C:\>ConvertFrom-SamlSecurityToken 'Base64String'

    Convert Saml Security Token to XML object.

.INPUTS

    System.String

#>

function ConvertFrom-SamlSecurityToken {

    [CmdletBinding()]

    [Alias('ConvertFrom-SamlRequest')]

    [Alias('ConvertFrom-SamlResponse')]

    [OutputType([xml])]

    param (

        # SAML Security Token

        [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true)]

        [string[]] $InputObjects

        # Encoding to use for text strings

        #[Parameter (Mandatory = $false)]

        #[ValidateSet('Ascii', 'UTF32', 'UTF7', 'UTF8', 'BigEndianUnicode', 'Unicode')]

        #[string] $Encoding = 'Default'

    )

    process {

        foreach ($InputObject in $InputObjects) {

            [byte[]] $bytesInput = $null

            $xmlOutput = New-Object xml

            try {

                $xmlOutput.LoadXml($InputObject)

            }

            catch {

                try {

                    $bytesInput = [System.Convert]::FromBase64String($InputObject)

                }

                catch {

                    $bytesInput = [System.Convert]::FromBase64String([System.Net.WebUtility]::UrlDecode($InputObject))

                }

            }

            if ($bytesInput) {

                try {

                    $streamInput = New-Object System.IO.MemoryStream -ArgumentList @($bytesInput, $false)

                    try {

                        $xmlOutput.Load($streamInput)

                    }

                    catch {

                        $streamInput = New-Object System.IO.MemoryStream -ArgumentList @($bytesInput, $false)

                        try {

                            $streamOutput = New-Object System.IO.MemoryStream

                            try {

                                [System.IO.Compression.DeflateStream] $streamCompression = New-Object System.IO.Compression.DeflateStream -ArgumentList $streamInput, ([System.IO.Compression.CompressionMode]::Decompress), $true

                                $streamCompression.CopyTo($streamOutput)

                            }

                            finally { $streamCompression.Dispose() }

                            $streamOutput.Position = 0

                            $xmlOutput.Load($streamOutput)

                            #[string] $strOutput = ([Text.Encoding]::$Encoding.GetString($streamOutput.ToArray()))

                            #$xmlOutput.LoadXml($strOutput)

                        }

                        finally { $streamOutput.Dispose() }

                    }

                }

                finally { $streamInput.Dispose() }

            }

            Write-Output $xmlOutput

        }

    }

}

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# SIG # End signature block