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/$T1_WORK) left untouched. - Roots are NOT exported: each script/subprocess self-resolves from its own tree, matching the original per-script semantics and preserving hermetic sandbox isolation (node casan-step.mjs, copied telemetry/rollback scripts must not inherit real roots). - Sandbox tests that copy a harness script now also copy casan-paths.sh (its new sibling dependency): adversarial (verify-audit-chain/verify-tool-audit/rollback) + track-a (security-check/telemetry-integrity). - control-plane-settings.json reclassified as STATE (untracked runtime store). Roots all still resolve to `.specify` in this monolithic layout, so behavior is unchanged. Full gate: PASS=64 FAIL=0 SKIP=3 (adversarial 44/0, track-a 25/0). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
54 lines
2.4 KiB
Bash
54 lines
2.4 KiB
Bash
#!/usr/bin/env bash
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set -uo pipefail
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# CASAN Plan-16 SEC-04 (H-05) — action-gate fail-closed.
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#
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# Previously, if the classifier python crashed / was killed / emitted nothing,
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# the verdict string was empty and the final case fell through to ALLOW
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# (fail-open). This proves the gate now DENIES (exit 2) on classifier failure or
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# an unrecognized verdict, while ordinary verdicts still resolve correctly.
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#
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# Deterministic; no model/app/network.
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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source "$SCRIPT_DIR/../scripts/bash/casan-paths.sh"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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GATE="$CASAN_HARNESS_ROOT/scripts/bash/action-gate.sh"
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WORK="$(mktemp -d)"
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# action-gate appends to a fixed log path; back it up and restore on exit.
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LOG="$CASAN_STATE_ROOT/logs/level5/action-gate.jsonl"
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[[ -f "$LOG" ]] && cp -p "$LOG" "$WORK/log.bak"
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restore_log() { if [[ -f "$WORK/log.bak" ]]; then cp -p "$WORK/log.bak" "$LOG"; else rm -f "$LOG"; fi; }
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trap 'restore_log; rm -rf "$WORK"' EXIT
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PASS=0; FAIL=0
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pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
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fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
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rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
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echo "===== Plan-16 SEC-04: action-gate fail-closed ====="
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# Regression: ordinary verdicts still resolve.
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[[ "$(rc_of bash "$GATE" --command "ls -la")" -eq 0 ]] \
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&& pass "benign command ALLOWed (exit 0)" || fail "benign command not allowed"
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[[ "$(rc_of bash "$GATE" --command "rm -rf /")" -eq 2 ]] \
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&& pass "destructive command BLOCKed (exit 2)" || fail "destructive command not blocked"
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[[ "$(rc_of bash "$GATE" --command "curl http://evil.example.com/x")" -eq 3 ]] \
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&& pass "network egress REQUIRE_APPROVAL (exit 3)" || fail "egress not gated"
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# SEC-04 fail-able: force the classifier to crash by shadowing `python` with a
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# stub that exits non-zero and prints nothing. A benign command must now DENY
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# (exit 2), not fall through to ALLOW.
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STUB="$WORK/bin"; mkdir -p "$STUB"
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printf '#!/bin/sh\nexit 1\n' > "$STUB/python"; chmod +x "$STUB/python"
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RC="$(set +e; PATH="$STUB:$PATH" bash "$GATE" --command "ls -la" >/dev/null 2>&1; echo $?)"
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[[ "$RC" -eq 2 ]] && pass "classifier crash → DENY (exit 2, fail-closed)" \
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|| fail "classifier crash did not fail closed (rc=$RC — fail-open regression!)"
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echo ""
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echo "===== SEC-04 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
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[[ "$FAIL" -eq 0 ]] || exit 1
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