Utility.psm1
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class Utility { [bool]IsValidEmail([string]$text) { return [system.Text.RegularExpressions.Regex]::IsMatch($text, "^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$") } [object]ParseAccessToken([string]$accessToken) { $encodedJson = $accessToken.Split(".")[1] $n = $encodedJson.Length % 4 if ($n -eq 0) { $length = $encodedJson.Length } else { $length = $encodedJson.Length + 4 - $n } $encodedJson = $encodedJson.PadRight($length, "=") $token = [Text.Encoding]::Utf8.GetString([Convert]::FromBase64String($encodedJson)) | ConvertFrom-Json return $token } [string]BuildO365Token([string]$accessToken, [string]$upn) { [char]$ctrlA = 1 $token = "user=" + $upn + $ctrlA + "auth=Bearer " + $accessToken + $ctrlA + $ctrlA $bytes = [System.Text.Encoding]::ASCII.GetBytes($token) $encodedToken = [Convert]::ToBase64String($bytes) return $encodedToken } } function Get-Utility() { return [Utility]::new() } |