Private/Get-Nonce.ps1
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function Get-Nonce { [CmdletBinding()] [OutputType('System.String')] param( [Parameter(Position=0,ValueFromPipeline,ValueFromPipelineByPropertyName)] [Alias('newNonce')] [string]$NewNonceUrl ) # https://tools.ietf.org/html/draft-ietf-acme-acme-10#section-7.2 Process { # if there was no Url passed in, check if there's a saved one if (!$NewNonceUrl) { if (!$script:Dir -or !$script:Dir.newNonce) { throw "No NewNonceUrl passed in or saved on current PAServer." } else { $NewNonceUrl = $script:Dir.newNonce } } # make the request Write-Debug "Requesting nonce from $NewNonceUrl" try { $response = Invoke-WebRequest $NewNonceUrl -Method Head ` -UserAgent $script:USER_AGENT -Headers $script:COMMON_HEADERS ` -EA Stop -Verbose:$false @script:UseBasic } catch { throw } # return the value from the response if ($response.Headers.ContainsKey($script:HEADER_NONCE)) { return $response.Headers.$script:HEADER_NONCE } else { throw "$($script:HEADER_NONCE) not found in response headers." } } } |