Files
CASAN/AINative_OKR_CASAN5/packages/casan-harness/scripts/bash/supply-chain-gate.sh
T
thanhnvandClaude Opus 4.8 664bd1f00c feat(plan-01): Phase 1 — relocate harness code to packages/casan-harness (symlink facade)
Physically move the pure-code subtrees out of .specify into the package, leaving
compat symlinks at the old .specify/<dir> paths so every existing reference (internal
CASAN_HARNESS_ROOT + external CI/docker/mjs) keeps resolving. Runtime state stays put.

Moved (git mv): scripts/ tests/ security/ templates/ config/ governance/ memory/
  .specify/<dir>  ->  packages/casan-harness/<dir>   (+ .specify/<dir> symlink)
Stays in .specify (state/governance/domain, handled later): logs/ agentops/ level5/
  init-options.json traceability-map.json

Python `.resolve()` self-location followed the compat symlink into packages and lost
the app root; generate-casan-demo-context.py, generate-agentops-dashboard.py and
dashboard-server.py now walk UP for the `.specify` state marker instead of a fixed
parent depth (fixes "missing trace files" in run-casan4).

Full gate: PASS=64 FAIL=0 SKIP=3 (CASAN_CI_STEP_TIMEOUT_SEC=1200 — track-a ~450s runs
close to the 600s default and can tip over under load; this is timing variance, not a
regression — it passed cleanly with headroom). Runtime log/audit artifacts kept unstaged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-08 00:06:00 +09:00

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#!/usr/bin/env bash
set -uo pipefail
# CASAN Track C-MVP — Supply-chain gate for generated dependencies (C2, V18).
#
# An agent that writes code can also add a dependency. This gate diffs a
# dependency manifest against a baseline and decides:
# BLOCK malicious/denylisted package, typosquat of a known package,
# or a dangerous lifecycle script (postinstall/preinstall/install) -> exit 2
# REQUIRE_APPROVAL a genuinely new dependency was added -> exit 3
# (ALLOW+audit when CASAN_ACTION_APPROVER is set)
# ALLOW no new dependencies -> exit 0
#
# Supports: package.json, requirements.txt, pom.xml, build.gradle(.kts).
# When npm audit / pip-audit / osv-scanner are installed they are recorded as
# available; otherwise the local denylist (malicious-packages.txt) is authoritative.
# The diff/scan logic lives in supply-chain-scan.py (deterministic, no network).
#
# Usage: supply-chain-gate.sh <manifest> [baseline-manifest] [report.json]
# If baseline is omitted, the manifest's committed git version is used.
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/casan-paths.sh"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../../.." && pwd)"
SEC_DIR="$CASAN_HARNESS_ROOT/security"
# shellcheck source=casan-log.sh
source "$SCRIPT_DIR/casan-log.sh"
MANIFEST="${1:-}"
BASELINE="${2:-}"
REPORT="${3:-$CASAN_STATE_ROOT/logs/level5/supply-chain-report.json}"
mkdir -p "$(dirname "$REPORT")"
if [[ -z "$MANIFEST" || ! -f "$MANIFEST" ]]; then
echo "Usage: supply-chain-gate.sh <manifest> [baseline-manifest] [report.json]" >&2
exit 64
fi
# Resolve baseline: explicit file, else the manifest's committed git version,
# else empty (treat every dependency as new).
BASELINE_TMP=""
if [[ -z "$BASELINE" ]]; then
BASELINE_TMP="$(mktemp)"
REL="${MANIFEST#"$PROJECT_ROOT"/}"
if git -C "$PROJECT_ROOT" show "HEAD:$REL" > "$BASELINE_TMP" 2>/dev/null; then
BASELINE="$BASELINE_TMP"
else
: > "$BASELINE_TMP"; BASELINE="$BASELINE_TMP"
fi
fi
# Record which live scanners are available (honest capability reporting).
SCANNERS=""
for pair in "npm:npm" "pip-audit:pip-audit" "osv-scanner:osv-scanner"; do
command -v "${pair##*:}" >/dev/null 2>&1 && SCANNERS="${SCANNERS:+$SCANNERS }${pair%%:*}"
done
RESULT="$(python "$SCRIPT_DIR/supply-chain-scan.py" \
"$MANIFEST" "$BASELINE" "$SEC_DIR/known-packages.txt" "$SEC_DIR/malicious-packages.txt" \
"$REPORT" "$SCANNERS")"
RC=$?
[[ -n "$BASELINE_TMP" ]] && rm -f "$BASELINE_TMP"
[[ "$RC" -ne 0 ]] && { echo "SUPPLY_CHAIN_SCAN_ERROR rc=$RC" >&2; exit 2; }
OUTCOME="${RESULT%%|*}"
REASON="${RESULT#*|}"
APPROVER="${CASAN_ACTION_APPROVER:-}"
case "$OUTCOME" in
BLOCK)
casan_log error supply-chain "SUPPLY_CHAIN_BLOCKED $REASON"
echo "SUPPLY_CHAIN_BLOCKED reason=$REASON report=$REPORT" >&2
exit 2 ;;
REQUIRE_APPROVAL)
if [[ -n "$APPROVER" ]]; then
echo "SUPPLY_CHAIN_APPROVED by=$APPROVER new=$REASON report=$REPORT"
exit 0
fi
casan_log warn supply-chain "SUPPLY_CHAIN_REQUIRES_APPROVAL new=$REASON (set CASAN_ACTION_APPROVER=<id>)"
echo "SUPPLY_CHAIN_REQUIRES_APPROVAL new=$REASON report=$REPORT" >&2
exit 3 ;;
*)
echo "SUPPLY_CHAIN_CLEAN reason=$REASON report=$REPORT"
exit 0 ;;
esac