Private/Test-SmaConnection.ps1
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function Test-SmaConnection { <# .SYNOPSIS Check current SMA Connexion. .DESCRIPTION Check if everything is fine to run another API calls or try to refresh token .EXAMPLE PS>Test-SmaConnection .INPUTS none .OUTPUTS void #> [CmdletBinding()] Param () Begin { } Process { If (-not ($SMAApiBaseUri -and $SMAToken -and $SMACreds)) { throw 'Please run Connect-SMAApi -ServerUri "https://<your sma instance>:xxxx/sma/api/v2.0/" -SMACredential $(Get-Credential)' } $token = $SMAToken.jwtToken If (!$token.Contains(".") -or !$token.StartsWith("eyJ")) { throw "Invalid JWT token" } #Payload $tokenPayload = $token.Split(".")[1].Replace('-', '+').Replace('_', '/') #Fix padding as needed, keep adding "=" until string length modulus 4 reaches 0 while ($tokenPayload.Length % 4) { Write-Verbose "Invalid length for a Base-64 char array or string, adding =" $tokenPayload += "=" } #Convert B64 to PS Object $tokenDecodedObject = [System.Text.Encoding]::Default.GetString([System.Convert]::FromBase64String($tokenPayload)) | ConvertFrom-Json If (-not $tokenDecodedObject.exp) { throw "Invalid JWT token" } $remainingTime = ([datetime]'1/1/1970').AddSeconds($tokenDecodedObject.exp) - $(get-date).ToUniversalTime() If ($remainingTime.TotalSeconds -le 60) { Write-Warning "Token is expired or expiring very shortly. Will Try to renew it" Write-Verbose "Before: $($SMAToken.jwtToken)" Connect-SMAApi -ServerUri $SMAApiBaseUri -SMACredential $SMACreds Write-Verbose "After: $($SMAToken.jwtToken)" } else { Write-Verbose "Token still valid for $($remainingTime.TotalSeconds)s." } } End { } } |