advanced-ussd-builder/lib/security/input-validator.d.ts

Advanced USSD Menu Builder with persistent state and navigation

export declare class InputValidator {
    private static readonly SAFE_USSD_REGEX;
    private static readonly E164_REGEX;
    private static readonly LOCAL_PHONE_REGEX;
    /**
     * Validates and sanitizes USSD input
     * @param input Raw user input
     * @param maxLength Maximum allowed length (default 160 for USSD)
     * @returns Sanitized input
     * @throws Error if input is invalid
     */
    static validateUserInput(input: string, maxLength?: number): string;
    /**
     * Validates session IDs
     * @param sessionId Session identifier
     * @returns Validated session ID
     * @throws Error if invalid
     */
    static validateSessionId(sessionId: string): string;
    /**
     * Validates and sanitizes phone numbers
     * @param msisdn Phone number
     * @param allowInternational Whether to allow international format
     * @returns Sanitized phone number
     * @throws Error if invalid
     */
    static validatePhoneNumber(msisdn: string, allowInternational?: boolean): string;
    /**
     * Validates menu option selection
     * @param option User's menu selection
     * @param validOptions Array of valid options
     * @returns Validated option
     * @throws Error if invalid
     */
    static validateMenuOption(option: string, validOptions: string[]): string;
    /**
     * Validates numeric input (e.g., amounts, PINs)
     * @param input Numeric input
     * @param minLength Minimum length
     * @param maxLength Maximum length
     * @returns Validated numeric string
     * @throws Error if invalid
     */
    static validateNumericInput(input: string, minLength?: number, maxLength?: number, skipWeakCheck?: boolean): string;
    /**
     * Validates PIN input
     * @param pin PIN input
     * @param length Expected PIN length
     * @returns Validated PIN
     * @throws Error if invalid
     */
    static validatePIN(pin: string, length?: number): string;
    /**
     * Validates amount input (money)
     * @param amount Amount input
     * @param minAmount Minimum allowed amount
     * @param maxAmount Maximum allowed amount
     * @returns Validated amount as number
     * @throws Error if invalid
     */
    static validateAmount(amount: string, minAmount?: number, maxAmount?: number): number;
    /**
     * Checks for common injection patterns
     */
    private static containsInjectionPattern;
    /**
     * Checks for weak numeric patterns
     */
    private static isWeakNumericPattern;
    /**
     * Checks for weak PINs
     */
    private static isWeakPIN;
    /**
     * Sanitizes text for safe display
     * @param text Text to sanitize
     * @returns Sanitized text
     */
    static sanitizeForDisplay(text: string): string;
}
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