@himorishige/noren-core/dist/json-detector.d.ts

Core PII detection, masking, and tokenization library built on Web Standards

import type { DetectUtils, Hit } from './types.js';
export type JsonHit = Hit & {
    jsonPath: string;
    keyName: string;
};
export interface JsonDetectionResult {
    hits: JsonHit[];
    isValidJson: boolean;
    fallbackToText: boolean;
}
/**
 * Streaming JSON detector for PII data
 * Uses key-based detection with fallback to text parsing
 */
export declare class JSONDetector {
    private currentPath;
    private hits;
    private arrayIndices;
    /**
     * Detect PII in JSON string
     */
    detectInJson(jsonString: string, utils: DetectUtils): JsonDetectionResult;
    /**
     * Try parsing as NDJSON (newline-delimited JSON)
     */
    private tryNDJSON;
    /**
     * Recursively traverse object/array structures
     */
    private traverseObject;
    /**
     * Traverse array elements
     */
    private traverseArray;
    /**
     * Traverse object properties
     */
    private traverseObjectProperties;
    /**
     * Check if string value contains PII based on key name and content
     */
    private checkStringValue;
    /**
     * Detect PII type from key name
     */
    private detectPiiTypeFromKey;
    /**
     * Use existing detectors on string values
     */
    private detectInStringValue;
    /**
     * Basic pattern matching for common PII types
     */
    private basicPatternMatch;
    /**
     * Add a JSON-specific hit
     */
    private addJsonHit;
    /**
     * Get current JSON path
     */
    private getJsonPath;
    /**
     * Find the position of a value in the original JSON string
     * Simple fallback - just return default positions for now
     */
    private findValuePosition;
    /**
     * Get risk level for PII type
     */
    private getRiskLevel;
}
/**
 * JSON detector factory function
 */
export declare function createJSONDetector(): JSONDetector;
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