thanhnvandClaude Opus 4.8
2c765c9a45
Task 1.2: introduce a single path resolver so no harness script hardcodes `.specify/...` scattered across the tree. casan-paths.sh resolves four roots (HARNESS/STATE/GOVERNANCE/APP) by marker-based walk-up from its own location — never `git rev-parse` (git root is the repo PARENT here, not the app dir). - 101 bash scripts/tests: 238 hardcoded `$PROJECT_ROOT/.specify/...` refs rewritten to CASAN_HARNESS_ROOT (code) / CASAN_STATE_ROOT (logs,state) / CASAN_GOVERNANCE_ROOT. Sandbox test vars ($WORK/$TP/$FP/$T1_WORK) left untouched. - Roots are NOT exported: each script/subprocess self-resolves from its own tree, matching the original per-script semantics and preserving hermetic sandbox isolation (node casan-step.mjs, copied telemetry/rollback scripts must not inherit real roots). - Sandbox tests that copy a harness script now also copy casan-paths.sh (its new sibling dependency): adversarial (verify-audit-chain/verify-tool-audit/rollback) + track-a (security-check/telemetry-integrity). - control-plane-settings.json reclassified as STATE (untracked runtime store). Roots all still resolve to `.specify` in this monolithic layout, so behavior is unchanged. Full gate: PASS=64 FAIL=0 SKIP=3 (adversarial 44/0, track-a 25/0). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
109 lines
3.9 KiB
Bash
Executable File
109 lines
3.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# CASAN Level 5 signed central policy bundle.
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# Usage:
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# sign-policy-bundle.sh sign
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# sign-policy-bundle.sh verify
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MODE="${1:-}"
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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source "$SCRIPT_DIR/casan-paths.sh"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/../../.." && pwd)"
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GOV_DIR="$CASAN_GOVERNANCE_ROOT"
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BUNDLE="$GOV_DIR/policy-bundle.yaml"
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MANIFEST="$GOV_DIR/policy-manifest.json"
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PRIVATE_KEY="$GOV_DIR/policy-private.pem"
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PUBLIC_KEY="$GOV_DIR/policy-public.pem"
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SIGNATURE="$GOV_DIR/policy-manifest.sig"
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mkdir -p "$GOV_DIR"
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if [[ "$MODE" != "sign" && "$MODE" != "verify" ]]; then
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echo "Usage: sign-policy-bundle.sh sign|verify" >&2
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exit 64
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fi
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if ! command -v openssl >/dev/null 2>&1; then
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echo "POLICY_SIGNING_UNAVAILABLE openssl not found" >&2
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exit 1
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fi
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generate_manifest() {
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python - "$PROJECT_ROOT" "$BUNDLE" "$MANIFEST" <<'PY'
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import hashlib
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import json
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import pathlib
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import re
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import sys
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from datetime import datetime, timezone
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root = pathlib.Path(sys.argv[1])
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bundle = pathlib.Path(sys.argv[2])
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manifest = pathlib.Path(sys.argv[3])
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text = bundle.read_text(encoding="utf-8")
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paths = re.findall(r"^\s*path:\s*(.+?)\s*$", text, flags=re.MULTILINE)
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files = []
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for raw in paths:
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rel = raw.strip().strip('"')
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path = root / rel
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if not path.exists():
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raise SystemExit(f"missing policy file: {rel}")
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data = path.read_bytes()
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files.append({
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"path": rel,
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"sha256": hashlib.sha256(data).hexdigest(),
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"bytes": len(data),
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})
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payload = {
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"bundle_id": "casan-okr-harness-policy",
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"generated_at": datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"),
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"files": files,
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}
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manifest.write_text(json.dumps(payload, indent=2, sort_keys=True) + "\n", encoding="utf-8")
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print(f"POLICY_MANIFEST_GENERATED files={len(files)} manifest={manifest}")
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PY
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}
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if [[ "$MODE" == "sign" ]]; then
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generate_manifest
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if [[ -n "${VAULT_ADDR:-}" && -n "${VAULT_TOKEN:-}" ]] && \
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curl -sf "$VAULT_ADDR/v1/sys/health" >/dev/null 2>&1; then
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# ── KMS path: sign via HashiCorp Vault Transit (key never stored on disk) ──
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VAULT_KMS="$SCRIPT_DIR/vault-kms.sh"
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bash "$VAULT_KMS" enable-transit
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bash "$VAULT_KMS" sign "$MANIFEST" "$SIGNATURE" "casan-policy-key"
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bash "$VAULT_KMS" pubkey "$PUBLIC_KEY" "casan-policy-key"
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echo "POLICY_BUNDLE_SIGNED manifest=$MANIFEST signature=$SIGNATURE public_key=$PUBLIC_KEY key_backend=vault-kms"
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else
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# ── Fallback: local key file (dev / no Vault) ─────────────────────────────
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if [[ ! -f "$PRIVATE_KEY" ]]; then
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openssl genrsa -out "$PRIVATE_KEY" 2048 >/dev/null 2>&1
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fi
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# Key-sync invariant: the on-disk public key must ALWAYS match the key that
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# signs (a prior Vault-signed run leaves the Vault pubkey here — verifying
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# a local-key signature against it would fail with an RSA padding error).
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openssl rsa -in "$PRIVATE_KEY" -pubout -out "$PUBLIC_KEY" >/dev/null 2>&1
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openssl dgst -sha256 -sign "$PRIVATE_KEY" -out "$SIGNATURE" "$MANIFEST"
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echo "POLICY_BUNDLE_SIGNED manifest=$MANIFEST signature=$SIGNATURE public_key=$PUBLIC_KEY key_backend=local-file"
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fi
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exit 0
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fi
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python - "$PROJECT_ROOT" "$MANIFEST" <<'PY'
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import hashlib
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import json
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import pathlib
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import sys
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root = pathlib.Path(sys.argv[1])
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manifest = json.loads(pathlib.Path(sys.argv[2]).read_text(encoding="utf-8"))
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for item in manifest["files"]:
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data = (root / item["path"]).read_bytes()
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actual = hashlib.sha256(data).hexdigest()
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if actual != item["sha256"]:
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raise SystemExit(f"POLICY_HASH_MISMATCH path={item['path']} expected={item['sha256']} actual={actual}")
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print(f"POLICY_HASHES_VALID files={len(manifest['files'])}")
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PY
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openssl dgst -sha256 -verify "$PUBLIC_KEY" -signature "$SIGNATURE" "$MANIFEST" >/dev/null
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echo "POLICY_SIGNATURE_VALID manifest=$MANIFEST"
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