tl-shared-security/dist/frontend/content-security.d.ts

Enterprise-grade security module for frontend and backend applications with comprehensive protection against XSS, CSRF, SQL injection, and other security vulnerabilities

export interface ContentSecurityOptions {
    allowedDomains?: string[];
    allowDataUrls?: boolean;
    allowBlobUrls?: boolean;
    allowRelativeUrls?: boolean;
}
export declare class ContentSecurity {
    private options;
    constructor(options?: ContentSecurityOptions);
    /**
     * Validates if a URL is safe according to the security policy
     * @param url - URL to validate
     * @returns True if URL is safe, false otherwise
     */
    isSafeUrl(url: string): boolean;
    /**
     * Creates a safe URL - returns the URL if safe, or a fallback if not
     * @param url - URL to check
     * @param fallback - Fallback URL if unsafe
     * @returns Safe URL or fallback
     */
    createSafeUrl(url: string, fallback?: string): string;
    /**
     * Validates if an image source is safe
     * @param src - Image source URL
     * @returns True if image source is safe, false otherwise
     */
    isSafeImageSrc(src: string): boolean;
    /**
     * Creates a safe image source - returns the source if safe, or a fallback if not
     * @param src - Image source to check
     * @param fallback - Fallback image source if unsafe
     * @returns Safe image source or fallback
     */
    createSafeImageSrc(src: string, fallback?: string): string;
    /**
     * Validates if HTML content is safe
     * @param html - HTML content to validate
     * @returns True if HTML content is safe, false otherwise
     */
    isSafeHtml(html: string): boolean;
}
export declare const contentSecurity: ContentSecurity;
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