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/$T1_WORK) left untouched. - Roots are NOT exported: each script/subprocess self-resolves from its own tree, matching the original per-script semantics and preserving hermetic sandbox isolation (node casan-step.mjs, copied telemetry/rollback scripts must not inherit real roots). - Sandbox tests that copy a harness script now also copy casan-paths.sh (its new sibling dependency): adversarial (verify-audit-chain/verify-tool-audit/rollback) + track-a (security-check/telemetry-integrity). - control-plane-settings.json reclassified as STATE (untracked runtime store). Roots all still resolve to `.specify` in this monolithic layout, so behavior is unchanged. Full gate: PASS=64 FAIL=0 SKIP=3 (adversarial 44/0, track-a 25/0). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
73 lines
3.7 KiB
Bash
73 lines
3.7 KiB
Bash
#!/usr/bin/env bash
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set -uo pipefail
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# CASAN Plan-16 SEC-15 — low-cluster hardening.
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# * supply-chain typosquat: catch distance<=2 (was distance==1), no false positives
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# (levenshtein length sentinel fixed so it no longer collides with the threshold),
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# * tool-exec: fail CLOSED in enforced mode when no timeout backend exists,
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# * validate-tool-input: recurse into nested objects/arrays (was one level deep).
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#
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# Deterministic; hermetic.
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SCRIPT_DIR="$(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 "$SCRIPT_DIR/../.." && pwd)"
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S="$CASAN_HARNESS_ROOT/scripts/bash"
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WORK="$(mktemp -d)"
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trap 'rm -rf "$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 $?; set -e 2>/dev/null || true; }
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echo "===== Plan-16 SEC-15: low-cluster hardening ====="
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# ---- typosquat (distance<=2) ----
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printf '{"dependencies":{}}' > "$WORK/base.json"
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printf 'requests\nnumpy\nexpress\n' > "$WORK/known.txt"; : > "$WORK/deny.txt"
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scan() { python3 "$S/supply-chain-scan.py" "$1" "$WORK/base.json" "$WORK/known.txt" "$WORK/deny.txt" "$WORK/r.json" "" >/dev/null 2>&1; }
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printf '{"dependencies":{"reqeusts":"1.0.0"}}' > "$WORK/m1.json"; scan "$WORK/m1.json"
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grep -q "typosquat_of:requests" "$WORK/r.json" \
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&& pass "2-char typosquat (reqeusts→requests) flagged" || fail "2-char typosquat missed"
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printf '{"dependencies":{"fastapi":"1.0.0"}}' > "$WORK/m2.json"; scan "$WORK/m2.json"
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grep -q "typosquat" "$WORK/r.json" \
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&& fail "legit package fastapi false-flagged as typosquat" \
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|| pass "legit distant package not false-flagged (levenshtein sentinel fixed)"
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# ---- tool-exec fail-closed when no timeout backend ----
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# Hermetic: build a PATH that contains ONLY bash (no timeout, no perl) so the
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# no-backend branch is reached regardless of the host's /usr layout. On
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# merged-/usr systems /bin is a symlink to /usr/bin, so PATH=/bin would still
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# find timeout/perl — the old heuristic only worked on split-/usr (e.g. macOS).
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ONLYBIN="$WORK/onlybin"; mkdir -p "$ONLYBIN"
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BASH_BIN="$(command -v bash)"
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ln -sf "$BASH_BIN" "$ONLYBIN/bash"
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[[ "$(set +e; PATH="$ONLYBIN" CASAN_TOOL_EXEC_STRICT=1 "$BASH_BIN" "$S/tool-exec.sh" 2 -- echo hi >/dev/null 2>&1; echo $?)" -eq 2 ]] \
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&& pass "tool-exec refuses (fail-closed) with no timeout backend in enforced mode" \
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|| fail "tool-exec did not fail closed without a timeout backend"
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[[ "$(set +e; PATH="$ONLYBIN" "$BASH_BIN" "$S/tool-exec.sh" 2 -- echo hi >/dev/null 2>&1; echo $?)" -eq 0 ]] \
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&& pass "tool-exec dev: runs without backend (backward compatible)" \
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|| fail "tool-exec dev mode broke"
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# ---- validate-tool-input recursion ----
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cat > "$WORK/schema.json" <<'J'
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{"type":"object","additionalProperties":false,"properties":{
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"cfg":{"type":"object","additionalProperties":false,"properties":{"port":{"type":"integer"}}}}}
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J
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printf '{"cfg":{"port":8080}}' > "$WORK/ok.json"
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printf '{"cfg":{"port":"NOPE"}}' > "$WORK/badtype.json"
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printf '{"cfg":{"port":80,"evil":"x"}}' > "$WORK/badextra.json"
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[[ "$(rc_of bash "$S/validate-tool-input.sh" "$WORK/schema.json" "$WORK/ok.json")" -eq 0 ]] \
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&& pass "valid nested object accepted" || fail "valid nested object rejected"
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[[ "$(rc_of bash "$S/validate-tool-input.sh" "$WORK/schema.json" "$WORK/badtype.json")" -eq 2 ]] \
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&& pass "nested wrong type rejected (recursion)" || fail "nested wrong type slipped through"
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[[ "$(rc_of bash "$S/validate-tool-input.sh" "$WORK/schema.json" "$WORK/badextra.json")" -eq 2 ]] \
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&& pass "nested unexpected field rejected (recursion)" || fail "nested unexpected field slipped through"
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echo ""
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echo "===== SEC-15 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
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[[ "$FAIL" -eq 0 ]] || exit 1
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