feat: MCP Browser - servidor MCP para automação de navegador com Playwright

browser.js

@@ -0,0 +1,121 @@
+const { chromium } = require('playwright');
+
+let browser = null;
+let context = null;
+let page = null;
+
+async function start() {
+  if (browser) return;
+  if (page) return;
+
+  browser = await chromium.launch({
+    headless: false,
+    args: ['--disable-blink-features=AutomationControlled']
+  });
+
+  context = await browser.newContext({
+    viewport: { width: 1280, height: 720 },
+    userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36'
+  });
+
+  page = await context.newPage();
+
+  browser.on('disconnected', () => {
+    browser = null;
+    context = null;
+    page = null;
+  });
+}
+
+async function ensurePage() {
+  if (!browser) {
+    await start();
+    return page;
+  }
+
+  if (!page || page.isClosed()) {
+    page = await context.newPage();
+  }
+
+  return page;
+}
+
+async function goto(url) {
+  const p = await ensurePage();
+  await p.goto(url, {
+    waitUntil: 'domcontentloaded',
+    timeout: 30000
+  });
+
+  await p.waitForTimeout(1500);
+}
+
+async function click(selector) {
+  const p = await ensurePage();
+  await p.waitForSelector(selector, { state: 'visible', timeout: 10000 });
+  await p.click(selector);
+}
+
+async function type(selector, text) {
+  const p = await ensurePage();
+  await p.waitForSelector(selector, { state: 'visible', timeout: 10000 });
+  await p.fill(selector, text);
+}
+
+async function content() {
+  const p = await ensurePage();
+  return await p.content();
+}
+
+async function title() {
+  const p = await ensurePage();
+  return await p.title();
+}
+
+async function screenshot(path, fullPage = true) {
+  const p = await ensurePage();
+  await p.screenshot({ path, fullPage });
+}
+
+async function newTab() {
+  const p = await context.newPage();
+  page = p;
+  return p;
+}
+
+async function close() {
+  if (browser) {
+    try {
+      await browser.close();
+    } catch (e) {
+    }
+    browser = null;
+    context = null;
+    page = null;
+  }
+}
+
+module.exports = {
+  start,
+  goto,
+  click,
+  type,
+  content,
+  title,
+  screenshot,
+  close,
+  newTab,
+  ensurePage,
+
+  get page() {
+    return page;
+  },
+
+  get browser() {
+    return browser;
+  },
+
+  get context() {
+    return context;
+  }
+};