Files
CASAN/packages/casan-harness/scripts/bash/pii-mask.py
T
thanhnvandClaude Opus 4.8 36a4812ef3 refactor(structure): promote app to repo root + remove redundant workspace cruft
Standard production layout: the OKR app (was nested under AINative_OKR_CASAN5/) is now
the repository root. No more wrapper directory.

- Promote AINative_OKR_CASAN5/* -> repo root (backend/ frontend/ packages/ apps/
  .specify/ docs/ infra/ nginx/ scripts/ + configs). Merge tool dirs: .gitea (kept the
  active deploy ci.yml, added harness-ci.yml + runbooks), .claude (agents/commands +
  launch.json), .github moved up.
- Remove redundant: 00_SUBMISSION_PACKAGE, scattered root notes (FPT_CASAN_Full.md,
  tu-tuong-casan.md, casan-tu-sinh..., casan_harness_assessment.md, source-review...,
  README_CASAN5_REFINED.md), casan-next-plans/ and optimize-docs/ (competition/planning
  artifacts — roadmap + design history preserved in git log / commit messages).
- Update all references to the old layout:
  - .gitea/workflows/{ci,harness-ci}.yml, .github/workflows/{ci,deploy}.yml:
    working-directory .; drop AINative_OKR_CASAN5/ prefix; .specify/{tests,scripts}
    -> packages/casan-harness/... (.specify/logs state kept)
  - .claude/launch.json, .gitea/*-runbook.md: path prefixes
  - CLAUDE.md, README.md: docs/input -> apps/okr/domain/input
  - policy-bundle.yaml: 8 policy paths -> packages/casan-harness/...; manifest re-signed
- secrets-scan.sh: fixture excludes -> new package/domain paths.

Full gate from the new root: PASS=64 FAIL=0 SKIP=3.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-08 13:26:36 +09:00

86 lines
3.0 KiB
Python
Executable File

#!/usr/bin/env python3
"""CASAN H4 PII masker driven by packages/casan-harness/security/pii-rules.yaml.
Reads content on stdin, applies every `action: mask` rule from the rules
file, and writes the masked content to stdout. Type-specific replacement
tokens are preserved so downstream evidence stays stable
(***MASKED_EMAIL***, ***MASKED_PHONE***, ***MASKED_ID***).
This makes pii-rules.yaml the source of truth for PII masking instead of
dead config: editing/removing a rule changes runtime behavior.
"""
import re
import sys
REPLACEMENT_BY_TYPE = {
"email": "***MASKED_EMAIL***",
"phone": "***MASKED_PHONE***",
"personal_id": "***MASKED_ID***",
"address": "***MASKED_ADDRESS***",
}
def load_rules(path):
rules, cur = [], {}
with open(path, encoding="utf-8") as fh:
for raw in fh:
s = raw.strip()
m = re.match(r"-\s*id:\s*(\S+)", s)
if m:
if cur:
rules.append(cur)
cur = {"id": m.group(1)}
continue
m = re.match(r'type:\s*"?([^"\s]+)"?', s)
if m:
cur["type"] = m.group(1)
continue
m = re.match(r'regex:\s*"(.*)"\s*$', s)
if m:
# YAML double-quoted: collapse \\ -> \ to recover the real regex.
cur["regex"] = m.group(1).replace("\\\\", "\\")
continue
m = re.match(r"action:\s*(\S+)", s)
if m:
cur["action"] = m.group(1)
continue
if cur:
rules.append(cur)
return rules
def main():
data = sys.stdin.read()
# SEC-08 (M-06): FAIL CLOSED. Previously a missing rules file, an unreadable
# file, or a broken rule regex all emitted the RAW data — so a mask rule that
# failed to load silently leaked the PII it was meant to hide. Now any such
# condition emits NOTHING and exits non-zero: no unmasked content ever escapes.
if len(sys.argv) < 2:
sys.stderr.write("PII_MASK_FAIL no rules file provided (fail-closed)\n")
return 1
try:
rules = load_rules(sys.argv[1])
except OSError as exc:
sys.stderr.write(f"PII_MASK_FAIL rules file unreadable (fail-closed): {exc}\n")
return 1
# Pre-compile every mask rule; a broken regex is fatal (that PII type would
# otherwise pass through unmasked). Validate all BEFORE emitting anything.
compiled = []
for rule in rules:
if rule.get("action") != "mask" or "regex" not in rule:
continue
token = REPLACEMENT_BY_TYPE.get(rule.get("type", ""), "***MASKED***")
try:
compiled.append((re.compile(rule["regex"]), token))
except re.error as exc:
sys.stderr.write(f"PII_MASK_FAIL bad regex in rule {rule.get('id')} (fail-closed): {exc}\n")
return 1
for rx, token in compiled:
data = rx.sub(token, data)
sys.stdout.write(data)
return 0
if __name__ == "__main__":
raise SystemExit(main())