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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24
install-scripts/install-safe-chain.sh
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@ -8,20 +8,22 @@ set -e # Exit on error
# Configuration
VERSION="${SAFE_CHAIN_VERSION:-}" # Will be fetched from latest release if not set
SAFE_CHAIN_BASE="${SAFE_CHAIN_DIR:-${HOME}/.safe-chain}"
# Validate SAFE_CHAIN_BASE before any filesystem operations
case "${SAFE_CHAIN_BASE}" in
/*) ;;
*) printf '[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: %s\n' "${SAFE_CHAIN_BASE}" >&2; exit 1 ;;
esac
case "${SAFE_CHAIN_BASE}" in
*../*|*/..*|..) printf '[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)\n' >&2; exit 1 ;;
esac
if [ "${SAFE_CHAIN_BASE}" = "/" ]; then
printf '[ERROR] SAFE_CHAIN_DIR cannot be the root directory\n' >&2; exit 1
# Validate SAFE_CHAIN_DIR before use
if [ -n "${SAFE_CHAIN_DIR}" ]; then
case "${SAFE_CHAIN_DIR}" in
/*) ;;
*) printf '[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: %s\n' "${SAFE_CHAIN_DIR}" >&2; exit 1 ;;
esac
case "${SAFE_CHAIN_DIR}" in
*../*|*/..*|..) printf '[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)\n' >&2; exit 1 ;;
esac
if [ "${SAFE_CHAIN_DIR}" = "/" ]; then
printf '[ERROR] SAFE_CHAIN_DIR cannot be the root directory\n' >&2; exit 1
fi
fi
SAFE_CHAIN_BASE="${SAFE_CHAIN_DIR:-${HOME}/.safe-chain}"
INSTALL_DIR="${SAFE_CHAIN_BASE}/bin"
REPO_URL="https://github.com/AikidoSec/safe-chain"