Files
duplicati/Tools/Verification/DuplicatiVerify.ps1
T
2017-05-03 00:07:49 +02:00

108 lines
3.2 KiB
PowerShell

param
(
[Parameter(Mandatory = $true)]
[ValidateNotNullOrEmpty()]
[string]$FileOrDir
)
function HexToBase64
{
param
(
[Parameter(Mandatory=$true, Position=0, ValueFromPipeline=$true)]
[string]$s
)
[array]$return = @()
for ($i = 0; $i -lt $s.Length ; $i += 2) {
$return += [Byte]::Parse($s.Substring($i, 2), [System.Globalization.NumberStyles]::HexNumber)
}
Write-Output $([Convert]::ToBase64String($return))
}
function Verify-Hashes
{
[CmdletBinding(PositionalBinding=$false)]
param
(
[Parameter(Mandatory=$true)]
[ValidateNotNullOrEmpty()]
[string]$filename
)
[int]$errorCount = 0
[int]$checked = 0
if(-not $(Test-Path $filename)) {
Write-Host "Specified file does not exist: $filename"
return -1
}
[string]$folder = Split-Path -Path $filename
$remoteVolumes = (Get-Content $filename) -Join "`n" | ConvertFrom-Json
foreach ($remoteVolume in $remoteVolumes) {
[string]$volFileName = $remoteVolume.Name
[long]$volFileSize = $remoteVolume.Size
[string]$volFilePath = Join-Path -Path $folder -ChildPath $volFileName
if(-not $(Test-Path $volFilePath)) {
Write-Host "File missing: $volFileName" -ForegroundColor Red
$errorCount++
} else {
$checked++
Write-Host "Verifying file $volFileName"
$shaHash = Get-FileHash -Path $volFilePath -Algorithm SHA256
if($remoteVolume.Hash -ne $(HexToBase64 $shaHash.Hash)) {
Write-Host "*** Hash check failed for file: $volFileName" -ForegroundColor Red
$errorCount++
}
}
}
[string]$prefix = $(Split-Path -Path $filename -Leaf) -replace "-verification.json", ""
[array]$filesInStorage = Get-ChildItem $folder -Include "$prefix*" -Exclude $(Split-Path -Path $filename -Leaf) | `
Select-Object -ExpandProperty Name | Sort-Object
[array]$filesInVerification = $remoteVolumes | Select-Object -ExpandProperty Name | Sort-Object
$filesInStorage | Where-Object {$filesInVerification -NotContains $_} | ForEach-Object {
Write-Host "Found extra file which is not in verification file: $_" -ForegroundColor Red
$errorCount++
}
if($errorCount -gt 0) {
Write-Host "`nErrors were found" -ForegroundColor Red
} else {
Write-Host "`nNo errors found" -ForegroundColor Green
}
return $errorCount
}
Set-StrictMode -Version Latest
if(-not $(Test-Path $FileOrDir)) {
Write-Host "No such file or directory: $FileOrDir" -ForegroundColor Red
}
if(Test-Path $FileOrDir -PathType Leaf) {
exit Verify-Hashes -filename $FileOrDir
} else {
[int]$files = 0
[int]$errorCount = 0
Get-ChildItem $FileOrDir -Filter "*-verification.json" |
Foreach-Object {
$files++
Write-Host "Verifying file: $($_.Name)"
$errorCount = $errorCount + $(Verify-Hashes -filename $_.FullName)
}
if ($files -eq 0) { Write-Host "No verification files in folder: $FileOrDir" }
exit $errorCount
}