Function detectSensitiveFunctions

app/src/utils/code_sanitizer.ts:42–83

(code: string)

 * @returns Detection result with list of found functions and their locations
 */
export function detectSensitiveFunctions(code: string): SensitiveDataDetection {
  const detectedFunctions: string[] = [];
  const lineNumbers: Record<string, number[]> = {};

  if (!code || typeof code !== 'string') {
    return {
      hasSensitiveData: false,
      detectedFunctions: [],
      lineNumbers: {}
    };
  }

  // Split code into lines for line number tracking
  const lines = code.split('\n');

  // Check each sensitive function
  for (const funcName of SENSITIVE_FUNCTIONS) {
    // Create regex to match function calls
    // Matches: funcName( with optional whitespace
    const regex = new RegExp(`\\b${funcName}\\s*\\(`, 'g');

    // Track line numbers where this function appears
    const foundLines: number[] = [];

    lines.forEach((line, index) => {
      if (regex.test(line)) {
        foundLines.push(index + 1); // Line numbers start at 1
      }
    });

    if (foundLines.length > 0) {
      detectedFunctions.push(funcName);
      lineNumbers[funcName] = foundLines;
    }
  }

  return {
    hasSensitiveData: detectedFunctions.length > 0,
    detectedFunctions,
    lineNumbers
  };
}

/**
 * Get human-readable description of what data type a function may contain