Private/Invoke-MimecastMethod.ps1
|
function Invoke-MimecastMethod { <# .SYNOPSIS Invocation of the Mimecast API call #> param ( [Parameter(Mandatory = $true)] [Uri]$Uri, [string]$Method = "Post", [string]$Body ) #Retrieve Configuration Values $config = Get-MimecastConfig $accessKey = $config.accessKey $secretKey = $config.secretKey $appId = $config.appID $appKey = $config.appKey $baseUrl = $config.url $targetUrl = $baseUrl + $Uri #Generate request header values $hdrDate = (Get-Date).ToUniversalTime().ToString("ddd, dd MMM yyyy HH:mm:ss UTC") $requestId = [guid]::NewGuid().guid #Create the HMAC SHA1 of the Base64 decoded secret key for the Authorization header $sha = New-Object System.Security.Cryptography.HMACSHA1 $sha.key = [Convert]::FromBase64String($secretKey) $sig = $sha.ComputeHash([Text.Encoding]::UTF8.GetBytes($hdrDate + ":" + $requestId + ":" + $Uri + ":" + $appKey)) $sig = [Convert]::ToBase64String($sig) # Create headers $headers = @{ "Authorization" = "MC " + $accessKey + ":" + $sig "x-mc-date" = $hdrDate "x-mc-app-id" = $appId "x-mc-req-id" = $requestId "Content-Type" = "application/json" } # Set mandatory parameters $splatParameters = @{ Uri = $targetUrl Method = $Method Headers = $headers Body = $Body } # Invoke the API try { $webResponse = Invoke-RestMethod @splatParameters } catch { throw "Error: Bad response received." } if ($webResponse) { return $webResponse } } |