我有一个脚本,可以帮助用户查找文件哈希是否存在于文件夹中。用户输入哈希后,我会确定它是什么类型的哈希,如果不支持或者用户错过了一个字母,它将返回要求重新输入哈希。为了方便使用,我希望能够预先填写出用户之前输入的内容,这样他们就不需要重新开始。
while (1)
{
$hashToFind = Read-Host -Prompt "Enter hash to find or type 'file' for multiple hashes"
# Check if user wants to use text file
if ($hashToFind -eq "file" )
{
Write-Host "Be aware program will only support one has type at a time. Type is determined by the first hash in the file." -ForegroundColor Yellow
Start-Sleep -Seconds 3
$hashPath = New-Object system.windows.forms.openfiledialog
$hashPath.InitialDirectory = “c:\”
$hashPath.MultiSelect = $false
if($hashPath.showdialog() -ne "OK")
{
echo "No file was selected. Exiting program."
Return
}
$hashToFind = Get-Content $hashPath.filename
}
# Changes string to array
if ( $hashToFind.GetTypeCode() -eq "String")
{
$hashToFind+= " a"
$hashToFind = $hashToFind.Split(" ")
}
if ($hashToFind[0].Length -eq 40){$hashType = "SHA1"; break}
elseif ($hashToFind[0].Length -eq 64){$hashType = "SHA256"; break}
elseif ($hashToFind[0].Length -eq 96){$hashType = "SHA384"; break}
elseif ($hashToFind[0].Length -eq 128){$hashType = "SHA512"; break}
elseif ($hashToFind[0].Length -eq 32){$hashType = "MD5"; break}
else {echo "Hash length is not of supported hash type."}
}
我对PowerShell比较新,如果有其他意见欢迎提出!