loader/_docs/03_implementation/batch_04_report.md

Batch Report

Batch: 4 Tasks: 06_refactor_crypto_uploads, 07_refactor_thread_safety Date: 2026-04-13

Task Results

Task	Status	Files Modified	Tests	AC Coverage	Issues
06_refactor_crypto_uploads	Done	3 files	18/18 pass	4/4 ACs covered	None
07_refactor_thread_safety	Done	1 file	18/18 pass	3/3 ACs covered	None

AC Test Coverage: All covered

Code Review Verdict: PASS (manual review)

Auto-Fix Attempts: 0

Stuck Agents: None

Changes Summary

Task 06 (security.pyx, binary_split.py, api_client.pyx)

• C03: Replaced manual PKCS7 unpadding with padding.PKCS7(128).unpadder() in security.pyx
• C04: Integrated streaming PKCS7 unpadder into decrypt_archive pipeline in binary_split.py, removed post-hoc file truncation
• C09: Added CDN upload return value check in upload_big_small_resource
• C10: Removed exception swallowing in upload_file — errors now propagate

Task 07 (main.py)

• C01: Double-checked locking for get_api_client() singleton
• C02: Encapsulated unlock state in _UnlockStateHolder class with lock-guarded access
• C06: Replaced silent except OSError: pass with logger.warning

Next Batch: 08_refactor_cleanup