92 lines
2.4 KiB
PowerShell
92 lines
2.4 KiB
PowerShell
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<#
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This was made because I refuse to continue taking part in the unwritten
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PowerShell/Batch obfuscation contest.
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#>
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param (
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[Parameter()]
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[Switch]$ForDownload
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)
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<#
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There are myths that some Windows versions do not work without this.
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Since I can't be arsed to verify this, I'm just adding this to lower the number
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of reports to which I would normally respond with "works on my machine".
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#>
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try {
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[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
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} catch {
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Write-Error "Outdated operating systems are not supported."
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Exit 1
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}
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$filesDownload = @('aria2c.exe')
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$filesConvert = @('aria2c.exe', '7zr.exe', 'uup-converter-wimlib.7z')
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$urls = @{
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'aria2c.exe' = 'https://uupdump.net/misc/aria2c.exe';
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'7zr.exe' = 'https://uupdump.net/misc/7zr.exe';
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'uup-converter-wimlib.7z' = 'https://uupdump.net/misc/uup-converter-wimlib.7z';
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}
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$hashes = @{
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'aria2c.exe' = '0ae98794b3523634b0af362d6f8c04a9bbd32aeda959b72ca0e7fc24e84d2a66';
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'7zr.exe' = '108ab5f1e36f2068e368fe97cd763c639e403cac8f511c6681eaf19fc585d814';
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'uup-converter-wimlib.7z' = '7f07dfc0fa041820746c55c2704fd18f8930b984ca472d2ac397a1c69f15f3af';
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}
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function Retrieve-File {
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param (
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[String]$File,
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[String]$Url
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)
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Write-Host -BackgroundColor Black -ForegroundColor Yellow "Downloading ${File}..."
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Invoke-WebRequest -UseBasicParsing -Uri $Url -OutFile "files\$File" -ErrorAction Stop
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}
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function Test-Hash {
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param (
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[String]$File,
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[String]$Hash
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)
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Write-Host -BackgroundColor Black -ForegroundColor Cyan "Verifying ${File}..."
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$fileHash = (Get-FileHash -Path "files\$File" -Algorithm SHA256 -ErrorAction Stop).Hash
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return ($fileHash.ToLower() -eq $Hash)
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}
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if($ForDownload.IsPresent) {
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$files = $filesDownload
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} else {
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$files = $filesConvert
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}
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if(-not (Test-Path -PathType Container -Path "files")) {
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$null = New-Item -Path "files" -ItemType Directory
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}
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foreach($file in $files) {
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try {
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Retrieve-File -File $file -Url $urls[$file]
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} catch {
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Write-Host "Failed to download $file"
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Write-Host $_
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Exit 1
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}
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}
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Write-Host ""
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foreach($file in $files) {
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if(-not (Test-Hash -File $file -Hash $hashes[$file])) {
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Write-Error "$file appears to be tampered with"
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Exit 1
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}
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}
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Write-Host ""
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Write-Host -BackgroundColor Black -ForegroundColor Green "It appears all the dependencies are ready."
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