Public/ConvertTo-JwtToken.ps1
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function ConvertTo-JwtToken { <# .SYNOPSIS Converts a JWT token object. .DESCRIPTION Converts a JWT token object to a string. .PARAMETER Token An object containing the token. .INPUTS System.Management.Automation.PSCustomObject You can pipe an object for the token to this cmdlet. .OUTPUTS System.String Returns a String containing the raw token. .EXAMPLE ConvertTo-JwtToken -Token $MyTokenObject Description ----------- This example will return a string containing the raw token. .EXAMPLE $MyTokenObject | ConvertTo-JwtToken Description ----------- This example will return a string containing the raw token. .NOTES If signature is offuscated the token will not be valid. .LINK ConvertFrom-JwtToken .LINK https://tools.ietf.org/html/rfc7519 .LINK https://jwt.io/ #> [CmdLetBinding()] param( [Parameter(Mandatory = $true, ValueFromPipeline = $true)] [ValidateNotNullOrEmpty()] [ValidateScript( { if (!$_.Header -or !$_.Payload -or !$_.Signature) { throw $script:LocalizedData.ConvertToJwtToken.Error.MissingMember } else { $true } })] [pscustomobject] $Token ) begin { Write-Debug ($script:LocalizedData.Global.Debug.Entering -f $PSCmdlet.MyInvocation.MyCommand) $PartNames = Get-JwtTokenPart } process { try { if ($Token) { $Parts = @() $PartNames | ForEach-Object { Write-verbose ($script:LocalizedData.ConvertToJwtToken.Verbose.Processing -f $_.ToLower()) $Part = $Token.$_ if ($_ -ne "Signature") { $JsonBody = $false try { $Part | ConvertFrom-Json -ErrorAction Stop | Out-Null $JsonBody = $true } catch { $JsonBody = $false } Write-Debug ($script:LocalizedData.ConvertToJwtToken.Debug.BodyIsJson -f $JsonBody) if (!$JsonBody) { if ($_ -eq "Payload") { Get-JwtTokenPayloadDateField | Where-Object { $Part.$_ } | ForEach-Object { Write-Debug ($script:LocalizedData.ConvertToJwtToken.Debug.DateType -f $_, $Part.$_.GetType().Name) if ($Part.$_.GetType().Name -eq "DateTime") { Write-Verbose ($script:LocalizedData.ConvertToJwtToken.Verbose.ConvertToUnixEpoch -f $_) Write-Debug ($script:LocalizedData.ConvertToJwtToken.Debug.DateBefore -f $_, $Part.$_) [int32] $Part.$_ = (New-TimeSpan -Start (Get-Date "1970-01-01") -End $Part.$_).TotalSeconds Write-Debug ($script:LocalizedData.ConvertToJwtToken.Debug.DateAfter -f $_, $Part.$_) } } } Write-Verbose ($script:LocalizedData.ConvertToJwtToken.Verbose.ConvertToJson -f $_.ToLower()) $Part = $Part | ConvertTo-Json -Compress } Write-Verbose ($script:LocalizedData.ConvertToJwtToken.Verbose.ConvertToBase64 -f $_.ToLower()) Write-Debug ($script:LocalizedData.ConvertToJwtToken.Debug.PartBefore -f $_, $Part) $Part = [system.convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes($Part.Split("=")[0])) Write-Debug ($script:LocalizedData.ConvertToJwtToken.Debug.PartAfter -f $_, $Part) } Write-Debug ($script:LocalizedData.ConvertToJwtToken.Debug.PartUnpadded -f $_, $Part.Replace("=", "").Replace('+', '-').Replace('/', '_')) $Parts += $Part.Replace("=", "").Replace('+', '-').Replace('/', '_') } $Parts -join '.' } } catch { Write-Error $_ } } end { Write-Debug ($script:LocalizedData.Global.Debug.Leaving -f $PSCmdlet.MyInvocation.MyCommand) } } |