Playwright MCP Server

import { SessionManager } from '../session-manager.js'; import { ErrorResponse } from '../errors.js'; export interface GetPageContentArgs { sessionId: string; format?: 'html' | 'text' | 'markdown'; selector?: string; } export async function handleGetPageContent( sessionManager: SessionManager, args: any ): Promise<any> { const { sessionId, format = 'html', selector } = args as GetPageContentArgs; const validation = sessionManager.validateSession(sessionId); if (!validation.valid) { return { content: [{ type: 'text', text: JSON.stringify(validation.error) }], isError: true, }; } const session = sessionManager.getSession(sessionId); if (!session) { return { content: [ { type: 'text', text: JSON.stringify({ errorCode: 'SESSION_NOT_FOUND', message: `Session not found: ${sessionId}`, } as ErrorResponse), }, ], isError: true, }; } try { const result = await session.page.evaluate( ({ format, selector }): any => { let element; let targetSelector; if (selector) { // @ts-ignore element = document.querySelector(selector); if (!element) { return { error: 'Element not found' }; } targetSelector = selector; } else { // 默认获取整个 HTML 文档 // @ts-ignore element = document.documentElement; targetSelector = 'html'; } let content = ''; if (format === 'html') { // 如果是整个文档，返回完整的 HTML if (!selector) { // @ts-ignore content = document.documentElement.outerHTML; } else { content = element.outerHTML; } } else if (format === 'text') { content = element.innerText || element.textContent || ''; } else if (format === 'markdown') { // Simple markdown conversion const html = element.innerHTML; content = html .replace(/<h1[^>]*>(.*?)<\/h1>/gi, '# $1\n\n') .replace(/<h2[^>]*>(.*?)<\/h2>/gi, '## $1\n\n') .replace(/<h3[^>]*>(.*?)<\/h3>/gi, '### $1\n\n') .replace(/<p[^>]*>(.*?)<\/p>/gi, '$1\n\n') .replace(/<a[^>]*href="([^"]*)"[^>]*>(.*?)<\/a>/gi, '[$2]($1)') .replace(/<strong[^>]*>(.*?)<\/strong>/gi, '**$1**') .replace(/<em[^>]*>(.*?)<\/em>/gi, '*$1*') .replace(/<br\s*\/?>/gi, '\n') .replace(/<[^>]+>/g, '') .replace(/\n{3,}/g, '\n\n') .trim(); } return { // @ts-ignore url: document.location.href, // @ts-ignore title: document.title, content, format, selector: targetSelector, }; }, { format, selector } ); if (result.error) { return { content: [ { type: 'text', text: JSON.stringify({ errorCode: 'ELEMENT_NOT_FOUND', message: result.error, } as ErrorResponse), }, ], isError: true, }; } return { content: [ { type: 'text', text: JSON.stringify(result), }, ], }; } catch (error: any) { return { content: [ { type: 'text', text: JSON.stringify({ errorCode: 'GET_PAGE_CONTENT_FAILED', message: error.message || 'Failed to get page content', sessionId, } as ErrorResponse), }, ], isError: true, }; } }