Public/OAuth2/Get-ApiSignatureHeaders.ps1
|
<# .SYNOPSIS Create signature headers for API calls .DESCRIPTION .OUTPUTS Returns a hashtable to be used asan API signature header .PARAMETER DateString Date and time in yyyy-MM-ddTHH:mm:ss.fffZ format when the hsdp-api-signature is generated by the client. Defaults to now if not specified .EXAMPLE $headers = Get-ApiSignatureHeaders .LINK https://www.hsdp.io/documentation/identity-and-access-management-iam/api-documents/resource-reference-api/user-api-v2#/User%20Identity/post_authorize_identity_User #> function Get-ApiSignatureHeaders { [CmdletBinding()] [OutputType([Hashtable])] param( [Parameter(Mandatory = $false, Position = 0)] [String]$DateString ) begin { Write-Verbose "[$($MyInvocation.MyCommand.Name)] Function started" } process { Write-Debug "[$($MyInvocation.MyCommand.Name)] PSBoundParameters: $($PSBoundParameters | Out-String)" $config = Get-Config $sharedKey = $config.AppCredentials.GetNetworkCredential().username $secretKey = $config.AppCredentials.GetNetworkCredential().password $secret = "DHPWS$($secretKey)" if (-not $DateString) { $DateString = (Get-Date).ToUniversalTime().ToString("yyyy-MM-ddTHH:mm:ss.fffZ") } $message = [Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($DateString)) $hmacsha = New-Object System.Security.Cryptography.HMACSHA256 $hmacsha.key = [Text.Encoding]::UTF8.GetBytes($secret) $signature = [Convert]::ToBase64String($hmacsha.ComputeHash([Text.Encoding]::UTF8.GetBytes($message))) Write-Output @{ "hsdp-api-signature" = "HmacSHA256;Credential:$($sharedKey);SignedHeaders:SignedDate;Signature:$($signature)"; "signeddate" = $DateString } } end { Write-Verbose "[$($MyInvocation.MyCommand.Name)] Complete" } } |