milliways-infosec/AikidoSec-safe-chain
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Validate ENV VAR

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This commit is contained in:
Reinier Criel 2026-04-10 15:38:51 -07:00
parent 98dcda78da
commit df8be031cb
4 changed files with 55 additions and 46 deletions
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26
install-scripts/uninstall-safe-chain.ps1
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@ -4,19 +4,21 @@
# Use HOME on Unix, USERPROFILE on Windows (PowerShell Core is cross-platform)
$HomeDir = if ($env:HOME) { $env:HOME } else { $env:USERPROFILE }
# Validate SAFE_CHAIN_DIR before use
if ($env:SAFE_CHAIN_DIR) {
if (-not [System.IO.Path]::IsPathRooted($env:SAFE_CHAIN_DIR)) {
Write-Host "[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: $($env:SAFE_CHAIN_DIR)" -ForegroundColor Red; exit 1
}
if ($env:SAFE_CHAIN_DIR -match '\.\.') {
Write-Host "[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)" -ForegroundColor Red; exit 1
}
if ($env:SAFE_CHAIN_DIR -match '^[A-Za-z]:[/\\]?$' -or $env:SAFE_CHAIN_DIR -eq '/') {
Write-Host "[ERROR] SAFE_CHAIN_DIR cannot be a root or drive-root directory" -ForegroundColor Red; exit 1
}
}
$DotSafeChain = if ($env:SAFE_CHAIN_DIR) { $env:SAFE_CHAIN_DIR } else { Join-Path $HomeDir ".safe-chain" }
# Validate $DotSafeChain before any filesystem operations
if (-not [System.IO.Path]::IsPathRooted($DotSafeChain)) {
Write-Host "[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: $DotSafeChain" -ForegroundColor Red; exit 1
}
if ($DotSafeChain -match '\.\.') {
Write-Host "[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)" -ForegroundColor Red; exit 1
}
if ($DotSafeChain -match '^[A-Za-z]:[/\\]?$' -or $DotSafeChain -eq '/') {
Write-Host "[ERROR] SAFE_CHAIN_DIR cannot be a root or drive-root directory" -ForegroundColor Red; exit 1
}
$InstallDir = Join-Path $DotSafeChain "bin"
# Helper functions