@himorishige/noren-plugin-network/dist/patterns.js

Network PII detection plugin for Noren - IPv4, IPv6, and MAC address detection

// Network-specific regex patterns for IPv4, IPv6, and MAC address detection
// Pre-compiled regex patterns for better performance
export const NETWORK_PATTERNS = {
    // IPv4 pattern with proper boundary detection
    ipv4: /\b(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?:\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}\b/g,
    // IPv6 pattern with comprehensive format support
    ipv6: /(?<![0-9A-Fa-f:])((?:[0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4}|(?:[0-9A-Fa-f]{1,4}:){1,7}:|(?:[0-9A-Fa-f]{1,4}:){1,6}:[0-9A-Fa-f]{1,4}|(?:[0-9A-Fa-f]{1,4}:){1,5}(?::[0-9A-Fa-f]{1,4}){1,2}|(?:[0-9A-Fa-f]{1,4}:){1,4}(?::[0-9A-Fa-f]{1,4}){1,3}|(?:[0-9A-Fa-f]{1,4}:){1,3}(?::[0-9A-Fa-f]{1,4}){1,4}|(?:[0-9A-Fa-f]{1,4}:){1,2}(?::[0-9A-Fa-f]{1,4}){1,5}|[0-9A-Fa-f]{1,4}:(?::[0-9A-Fa-f]{1,4}){1,6}|:(?::[0-9A-Fa-f]{1,4}){1,7}|::|::ffff:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})(?![0-9A-Fa-f:])/gi,
    // MAC address pattern (supports both : and - separators)
    mac: /\b[0-9A-F]{2}(?:[:-][0-9A-F]{2}){5}\b/gi,
};
// Unified pattern for single-pass detection (optional optimization)
export const UNIFIED_NETWORK_PATTERN = new RegExp([
    // Group 1: IPv4
    '\\b((?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?:\\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3})\\b',
    // Group 2: MAC Address
    '|\\b([0-9A-F]{2}(?:[:-][0-9A-F]{2}){5})\\b',
    // Group 3: IPv6 (simplified pattern for compatibility)
    '|(?:^|[^0-9A-Fa-f:]|\\s)((?:[0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4}|(?:[0-9A-Fa-f]{1,4}:){1,7}:|(?:[0-9A-Fa-f]{1,4}:){1,6}:[0-9A-Fa-f]{1,4}|(?:[0-9A-Fa-f]{1,4}:){1,5}(?::[0-9A-Fa-f]{1,4}){1,2}|(?:[0-9A-Fa-f]{1,4}:){1,4}(?::[0-9A-Fa-f]{1,4}){1,3}|(?:[0-9A-Fa-f]{1,4}:){1,3}(?::[0-9A-Fa-f]{1,4}){1,4}|(?:[0-9A-Fa-f]{1,4}:){1,2}(?::[0-9A-Fa-f]{1,4}){1,5}|[0-9A-Fa-f]{1,4}:(?::[0-9A-Fa-f]{1,4}){1,6}|:(?::[0-9A-Fa-f]{1,4}){1,7}|::|::ffff:(?:25[0-5]|2[0-4]\\d|1\\d\\d|[1-9]?\\d)(?:\\.(?:25[0-5]|2[0-4]\\d|1\\d\\d|[1-9]?\\d)){3})(?![0-9A-Fa-f:])',
].join(''), 'gi');
// Pattern type mapping for unified detection
export const NETWORK_PATTERN_TYPES = [
    { type: 'ipv4', risk: 'low' },
    { type: 'mac', risk: 'low' },
    { type: 'ipv6', risk: 'low' },
];