Class ChromeControlServer

examples/chrome-applescript/server/index.js:19–781

const RETRY_DELAY = 1000; // 1 second

class ChromeControlServer {
  constructor() {
    this.server = new Server(
      {
        name: "chrome-applescript",
        version: "0.1.0",
      },
      {
        capabilities: {
          tools: {},
        },
      },
    );

    this.setupHandlers();
  }

  // Helper methods
  escapeForAppleScript(str) {
    if (typeof str !== "string") return str;
    // Basic AppleScript string escaping
    return str
      .replace(/\\/g, "\\\\") // Escape backslashes first
      .replace(/"/g, '\\"') // Then escape double quotes
      .replace(/\n/g, "\\n") // Escape newlines
      .replace(/\r/g, "\\r"); // Escape carriage returns
  }

  async checkChromeAvailable() {
    try {
      const script = 'tell application "Google Chrome" to return "available"';
      const result = await this.executeAppleScript(script);
      return result === "available";
    } catch (error) {
      return false;
    }
  }

  async executeAppleScript(script, retries = MAX_RETRIES) {
    for (let attempt = 0; attempt <= retries; attempt++) {
      try {
        const { stdout, stderr } = await execFileAsync(
          "osascript",
          ["-e", script],
          {
            timeout: APPLESCRIPT_TIMEOUT,
            maxBuffer: 1024 * 1024, // 1MB buffer
          },
        );
        if (stderr) {
          console.error("AppleScript stderr:", stderr);
        }
        return stdout.trim();
      } catch (error) {
        if (attempt === retries) {
          console.error("AppleScript execution error after retries:", error);
          throw new Error(`AppleScript error: ${error.message}`);
        }