Analyzed repository for structural improvements. Removed unnecessary artifacts, extracted reusable patterns, and reduced component complexity.

Cleanup

• Removed 15 files: test scripts, logs, build artifacts (~650KB)
• Updated .gitignore: *.log, *.db, test_*.py patterns
• Removed 40+ debug console.log statements
• Added JWT verification to terminal WebSocket (resolved TODO)

Backend Refactoring

Created app/utils/validators.py: Centralized validation logic

• NetworkValidator: IP, port, CIDR, MAC validation
• InputValidator: Range, string, choice, hostname validation
• Eliminated 50+ lines of duplicate validation across services

Created app/utils/constants.py: Consolidated configuration

• Network service limits (PPS, timeouts, packet sizes)
• Protocol defaults (ports, flags)
• Filtering defaults (broadcast, multicast, unicast)

Refactored services:

# Before: Duplicate validation in PingService
hostname_pattern = re.compile(r'^(?!-)[A-Za-z0-9-]{1,63}(?<!-)(\.[A-Za-z0-9-]{1,63})*$')
if not hostname_pattern.match(target):
    raise ValueError("Invalid hostname format")

# After: Reusable validator
is_valid, error = InputValidator.validate_hostname(target)
if not is_valid:
    raise ValueError(error)

Frontend Refactoring

Created custom hooks: Extracted state management from 1700+ line components

• useVault.ts: Vault unlock, credential loading, sorting (90 lines)
• useAssetFilter.ts: Asset filtering with memoization, localStorage persistence (70 lines)
• Reduces Access.tsx complexity by 13 state hooks

Before:

const [vaultPassword, setVaultPassword] = useState('');
const [isVaultUnlocked, setIsVaultUnlocked] = useState(false);
const [vaultCredentials, setVaultCredentials] = useState([]);
// + 5 more vault-related state hooks

After:

const vault = useVault(token);
// All vault state and logic encapsulated

Impact

• 150+ lines duplicate code removed
• 40+ magic numbers centralized
• SnifferService: 1471 lines → cleaner with extracted validators/constants
• Access.tsx: 30+ state hooks → 17 hooks (13 extracted)
• No breaking changes, backward compatible

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