lib/core/tools/Get-IcingaFileHash.psm1
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function Get-IcingaFileHash() { param ( [string]$Path, [ValidateSet('SHA1', 'SHA256', 'SHA384', 'SHA512', 'MD5')] [string]$Algorithm = 'SHA256' ); if ([string]::IsNullOrEmpty($Path) -Or ((Test-Path -Path $Path) -eq $FALSE)) { Write-IcingaConsoleError 'Your path is either not specified or does not exist'; return $null; } $FileHasher = New-Object "System.Security.Cryptography.${Algorithm}CryptoServiceProvider"; if ($null -eq $FileHasher) { Write-IcingaConsoleError 'Unable to create cryptography objects for algorithm "{0}"' -Objects $Algorithm; return $null; } # Read the file specified in $FilePath as a Byte array [System.IO.Stream]$FileStream = [System.IO.File]::OpenRead($Path) [Byte[]]$FileHash = $FileHasher.ComputeHash($FileStream) [string]$HashString = [BitConverter]::ToString($FileHash).Replace('-', ''); $RetValue = New-Object -TypeName PSObject; $RetValue | Add-Member -MemberType NoteProperty -Name 'Algorithm' -Value $Algorithm.ToUpper(); $RetValue | Add-Member -MemberType NoteProperty -Name 'Hash' -Value $HashString; $RetValue | Add-Member -MemberType NoteProperty -Name 'Path' -Value $Path; return $RetValue; } |