syntropylog/dist/serialization/utils/DataSanitizer.js

An instance manager with observability for Node.js applications

/**
 * @file src/serialization/utils/DataSanitizer.ts
 * @description Simple data sanitization utility for sensitive data redaction
 */
export class DataSanitizer {
    defaultSensitiveFields = [
        'password',
        'token',
        'secret',
        'key',
        'auth',
        'authorization',
        'api_key',
        'apikey',
        'private_key',
        'privatekey',
        'credential',
        'credential_id',
        'credentialid',
        'access_token',
        'accesstoken',
        'refresh_token',
        'refreshtoken',
        'session_id',
        'sessionid',
    ];
    defaultMaxDepth = 10;
    sanitize(data, context = {}) {
        const sensitiveFields = context.sensitiveFields || this.defaultSensitiveFields;
        const maxDepth = context.maxDepth || this.defaultMaxDepth;
        const currentDepth = context.currentDepth || 0;
        if (currentDepth >= maxDepth) {
            return '[MAX_DEPTH_REACHED]';
        }
        if (data === null || data === undefined) {
            return data;
        }
        if (typeof data === 'string') {
            return data;
        }
        if (typeof data === 'number' || typeof data === 'boolean') {
            return data;
        }
        if (Array.isArray(data)) {
            return data.map((_item, _index) => this.sanitize(_item, {
                ...context,
                currentDepth: currentDepth + 1,
            }));
        }
        if (typeof data === 'object') {
            const sanitized = {};
            for (const [key, value] of Object.entries(data)) {
                const lowerKey = key.toLowerCase();
                const isSensitive = sensitiveFields.some((field) => lowerKey.includes(field.toLowerCase()));
                if (isSensitive) {
                    sanitized[key] = '[REDACTED]';
                }
                else {
                    sanitized[key] = this.sanitize(value, {
                        ...context,
                        currentDepth: currentDepth + 1,
                    });
                }
            }
            return sanitized;
        }
        return data;
    }
}
//# sourceMappingURL=DataSanitizer.js.map