Excalidraw MCP Server

import { z } from "zod"; import { ExcalidrawResourceNotFoundError } from "../common/errors.js"; import { validateFileId, sanitizeErrorMessage } from "../common/security.js"; import { getDrawing } from "./drawings.js"; // Schema for exporting a drawing to SVG export const ExportToSvgSchema = z.object({ id: z.string().min(1), }); // Schema for exporting a drawing to PNG export const ExportToPngSchema = z.object({ id: z.string().min(1), quality: z.number().min(0).max(1).optional().default(0.92), scale: z.number().min(0.1).max(5).optional().default(1), exportWithDarkMode: z.boolean().optional().default(false), exportBackground: z.boolean().optional().default(true), }); // Schema for exporting a drawing to JSON export const ExportToJsonSchema = z.object({ id: z.string().min(1), }); // Export a drawing to SVG export async function exportToSvg(id: string): Promise<string> { // Validate the ID for security validateFileId(id); try { // Get the drawing const drawing = await getDrawing(id); // Return the SVG content // Note: In a real implementation, we would use the Excalidraw API to convert the drawing to SVG // For now, we'll just return a placeholder return `<svg> <text x="10" y="20">Drawing: ${drawing.name}</text> <text x="10" y="40">This is a placeholder for the SVG export.</text> </svg>`; } catch (error) { if (error instanceof ExcalidrawResourceNotFoundError) { throw error; } throw new Error( sanitizeErrorMessage(error, "Failed to export drawing to SVG") ); } } // Export a drawing to PNG export async function exportToPng( id: string, quality: number = 0.92, scale: number = 1, exportWithDarkMode: boolean = false, exportBackground: boolean = true ): Promise<string> { // Validate the ID for security validateFileId(id); try { // Get the drawing const drawing = await getDrawing(id); // Return the PNG content as a base64 string // Note: In a real implementation, we would use the Excalidraw API to convert the drawing to PNG // For now, we'll just return a placeholder return "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8BQDwAEhQGAhKmMIQAAAABJRU5ErkJggg=="; } catch (error) { if (error instanceof ExcalidrawResourceNotFoundError) { throw error; } throw new Error( sanitizeErrorMessage(error, "Failed to export drawing to PNG") ); } } // Export a drawing to JSON export async function exportToJson(id: string): Promise<string> { // Validate the ID for security validateFileId(id); try { // Get the drawing const drawing = await getDrawing(id); // Return the JSON content return drawing.content; } catch (error) { if (error instanceof ExcalidrawResourceNotFoundError) { throw error; } throw new Error( sanitizeErrorMessage(error, "Failed to export drawing to JSON") ); } }