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>
96 lines
4.2 KiB
Bash
Executable File
96 lines
4.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -uo pipefail
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# CASAN — Incident response (C7 / V23).
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#
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# Turns a detected security/ops event into a graded incident: classify severity,
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# record a tamper-visible incident entry, and for HIGH/CRIT auto-engage the
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# scoped kill-switch + fire an alert (reuses alert-dispatch.sh from H6 if present).
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# Answers "when a gate catches an attack/spike/tamper — who is paged and what
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# stops?" — severity, owner, kill-switch, runbook.
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#
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# Usage:
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# incident.sh raise <event-type> [detail] [--scope <s>] [--id <id>]
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# incident.sh status
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# Exit: 0 recorded (LOW/MED) · 2 kill-switch engaged (HIGH/CRIT) · 64 usage.
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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 "$SCRIPT_DIR/../../.." && pwd)"
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SEC_DIR="$CASAN_HARNESS_ROOT/security"
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LOG="$CASAN_STATE_ROOT/logs/level5/incidents.jsonl"
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RUNBOOK="$SEC_DIR/incident-runbook.md"
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SEVMAP="$SEC_DIR/incident-severity.map"
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mkdir -p "$(dirname "$LOG")"
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# shellcheck source=casan-log.sh
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source "$SCRIPT_DIR/casan-log.sh"
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CMD="${1:-}"
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ts() { date -u +"%Y-%m-%dT%H:%M:%SZ"; }
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# owner routing by severity (production: on-call rota / IdP group).
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owner_for() { case "$1" in CRIT) echo "security-oncall" ;; HIGH) echo "ops-oncall" ;; MED) echo "tech-lead" ;; *) echo "triage" ;; esac; }
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if [[ "$CMD" == "status" ]]; then
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n=$(grep -c . "$LOG" 2>/dev/null || echo 0)
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echo "INCIDENTS total=$n log=$LOG"
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[[ -f "$LOG" ]] && tail -5 "$LOG"
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exit 0
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fi
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[[ "$CMD" == "raise" ]] || { echo "Usage: incident.sh raise <event-type> [detail] [--scope <s>] [--id <id>]" >&2; exit 64; }
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EVENT="${2:-}"; DETAIL="${3:-}"
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[[ -n "$EVENT" ]] || { echo "usage: incident.sh raise <event-type> [detail]" >&2; exit 64; }
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SCOPE="project"; ID="${CASAN_PROJECT:-current}"
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shift 2 2>/dev/null || true
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while [[ "$#" -gt 0 ]]; do
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case "$1" in
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--scope) SCOPE="${2:-project}"; shift 2 ;;
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--id) ID="${2:-current}"; shift 2 ;;
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*) shift ;;
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esac
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done
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# Classify severity from the map (fallback to default).
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SEV="$(awk -v e="$EVENT" '$1==e {print $2; exit}' "$SEVMAP" 2>/dev/null)"
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[[ -n "$SEV" ]] || SEV="$(awk '$1=="default" {print $2; exit}' "$SEVMAP" 2>/dev/null)"
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[[ -n "$SEV" ]] || SEV="MED"
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OWNER="$(owner_for "$SEV")"
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TS="$(ts)"
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ACTION="recorded"
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# HIGH/CRIT → engage the scoped kill-switch (stop the blast radius).
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if [[ "$SEV" == "CRIT" || "$SEV" == "HIGH" ]]; then
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bash "$SCRIPT_DIR/kill-switch.sh" engage "$SCOPE" "$ID" "incident:$EVENT" >/dev/null 2>&1 || true
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ACTION="kill_switch_engaged"
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# Fire an alert through the H6 dispatcher if it is wired up.
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if [[ -x "$SCRIPT_DIR/alert-dispatch.sh" ]]; then
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bash "$SCRIPT_DIR/alert-dispatch.sh" "$SEV" "incident:$EVENT" "$DETAIL" >/dev/null 2>&1 || true
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fi
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casan_log error incident "INCIDENT sev=$SEV event=$EVENT scope=$SCOPE id=$ID → kill-switch ENGAGED owner=$OWNER"
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else
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casan_log warn incident "INCIDENT sev=$SEV event=$EVENT scope=$SCOPE id=$ID owner=$OWNER"
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fi
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# SEC-05 (M-05): the keyless printf fallback below must not permit JSON injection
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# either — strip quotes/backslashes/newlines from interpolated fields so a crafted
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# EVENT/OWNER/SCOPE cannot forge a second incident record.
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_json_strip() { local s="${1//\\/}"; s="${s//\"/}"; s="${s//$'\n'/ }"; s="${s//$'\r'/ }"; printf '%s' "$s"; }
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# Record a structured incident entry.
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python - "$LOG" "$TS" "$EVENT" "$SEV" "$OWNER" "$SCOPE" "$ID" "$ACTION" "$DETAIL" "$RUNBOOK" <<'PY' 2>/dev/null || \
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printf '{"timestamp":"%s","event":"%s","severity":"%s","owner":"%s","scope":"%s","id":"%s","action":"%s"}\n' \
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"$(_json_strip "$TS")" "$(_json_strip "$EVENT")" "$(_json_strip "$SEV")" "$(_json_strip "$OWNER")" "$(_json_strip "$SCOPE")" "$(_json_strip "$ID")" "$(_json_strip "$ACTION")" >> "$LOG"
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import json, sys
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log, ts, event, sev, owner, scope, iid, action, detail, runbook = sys.argv[1:11]
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with open(log, "a", encoding="utf-8") as f:
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f.write(json.dumps({
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"timestamp": ts, "event": event, "severity": sev, "owner": owner,
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"scope": scope, "id": iid, "action": action, "detail": detail[:300],
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"runbook": runbook,
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}) + "\n")
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PY
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echo "INCIDENT_RAISED sev=$SEV event=$EVENT owner=$OWNER scope=$SCOPE id=$ID action=$ACTION runbook=$RUNBOOK"
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[[ "$SEV" == "CRIT" || "$SEV" == "HIGH" ]] && exit 2 || exit 0
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