/**
 * OpenDocument Processor
 *
 * Processes OpenDocument format files (.odt, .ods, .odp) by extracting
 * text content from the internal XML structure.
 *
 * @module processors/document/OpenDocumentProcessor
 */
import { BaseFileProcessor } from "../base/BaseFileProcessor.js";
import type { FileInfo, ProcessorFileProcessingResult, ProcessOptions, ProcessedOpenDocument } from "../../types/index.js";
/**
 * OpenDocument Processor - handles .odt, .ods, .odp files
 *
 * OpenDocument files are ZIP archives containing XML content.
 * The main content is in content.xml within the archive.
 *
 * Priority: ~105 (between Word and Text)
 */
export declare class OpenDocumentProcessor extends BaseFileProcessor<ProcessedOpenDocument> {
    constructor();
    /**
     * Validate that the file is a valid ZIP archive (OpenDocument format)
     */
    protected validateDownloadedFile(buffer: Buffer, _fileInfo: FileInfo): Promise<string | null>;
    /**
     * Build the processed result by extracting content from the OpenDocument
     */
    protected buildProcessedResult(buffer: Buffer, fileInfo: FileInfo): ProcessedOpenDocument;
    /**
     * Decode HTML entities in a single pass to prevent double-unescaping.
     * Sequential replacement is vulnerable: "&amp;lt;" → "&lt;" → "<"
     * Single-pass avoids this by replacing each entity exactly once.
     */
    private decodeHtmlEntities;
    /**
     * Extract text content from OpenDocument XML
     */
    private extractTextFromXml;
    /**
     * Detect the OpenDocument format from file extension
     */
    private detectFormat;
    /**
     * Get file extension from filename
     */
    private getExtension;
}
/**
 * Singleton instance of OpenDocumentProcessor
 */
export declare const openDocumentProcessor: OpenDocumentProcessor;
/**
 * Check if a file is an OpenDocument file by MIME type or extension
 */
export declare function isOpenDocumentFile(mimetype: string, filename: string): boolean;
/**
 * Validate OpenDocument file size against limits
 */
export declare function validateOpenDocumentSize(sizeBytes: number): boolean;
/**
 * Process an OpenDocument file
 */
export declare function processOpenDocument(fileInfo: FileInfo, options?: ProcessOptions): Promise<ProcessorFileProcessingResult<ProcessedOpenDocument>>;
/**
 * Get the maximum allowed OpenDocument file size in MB
 */
export declare function getOpenDocumentMaxSizeMB(): number;