67 lines
1.6 KiB
PowerShell
67 lines
1.6 KiB
PowerShell
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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$file = 'aria2c.exe'
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$url = 'https://uupdump.net/misc/aria2c.exe';
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$hash = 'b9cd71b275af11b63c33457b0f43f2f2675937070c563e195f223efd7fa4c74b';
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function Test-Existence {
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param (
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[String]$File
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)
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return Test-Path -PathType Leaf -Path "files\$File"
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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((Test-Existence -File $file) -and (Test-Hash -File $file -Hash $hash)) {
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Write-Host -BackgroundColor Black -ForegroundColor Green "Ready."
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Exit 0
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}
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if(-not (Test-Path -PathType Container -Path "files")) {
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$null = New-Item -Path "files" -ItemType Directory
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}
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$ProgressPreference = 'SilentlyContinue'
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try {
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Retrieve-File -File $file -Url $url
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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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if(-not (Test-Hash -File $file -Hash $hash)) {
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Write-Error "$file appears to be tampered with"
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Exit 1
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}
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Write-Host -BackgroundColor Black -ForegroundColor Green "Ready."
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