Class: HeadlessBrowserTool::StdioServer

Inherits:
Object
  • Object
show all
Defined in:
lib/headless_browser_tool/stdio_server.rb

Class Method Summary collapse

Class Method Details

.start(options = {}) ⇒ Object 



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# File 'lib/headless_browser_tool/stdio_server.rb', line 16

def self.start(options = {})
  # Setup directory structure with logs FIRST
  DirectorySetup.setup_directories(include_logs: true)

  # Initialize logger for stdio mode AFTER directories exist
  HeadlessBrowserTool::Logger.initialize_logger(mode: :stdio)

  # Check for session ID from environment
  session_id = ENV.fetch("HBT_SESSION_ID", nil)

  # Create MCP server instance
  server = FastMcp::Server.new(
    name: "headless-browser-tool",
    version: HeadlessBrowserTool::VERSION
  )

  # Create single browser instance
  # In stdio mode, always single session and headless by default
  browser = Browser.new(headless: options.fetch(:headless, true))

  # Store browser instance for tools to access
  Server.browser_instance = browser
  Server.single_session_mode = true

  # Restore session if session ID provided
  if session_id
    HeadlessBrowserTool::Logger.log.info "Session ID provided: #{session_id}"
    SessionPersistence.restore_session(session_id, browser.session)
  end

  # Register all browser tools
  HeadlessBrowserTool::Tools::ALL_TOOLS.each do |tool_class|
    server.register_tool(tool_class)
  end

  # Log startup info to log file since stdout is used for MCP protocol
  HeadlessBrowserTool::Logger.log.info "Starting HeadlessBrowserTool MCP server in stdio mode..."
  HeadlessBrowserTool::Logger.log.info "Headless: #{options.fetch(:headless, true)}"

  # Store references for shutdown
  @browser = browser
  @session_id = session_id

  # Register shutdown hook
  at_exit do
    SessionPersistence.save_session(@session_id, @browser.session) if @session_id
  end

  # Start the server in stdio mode
  server.start
rescue Interrupt
  HeadlessBrowserTool::Logger.log.info "Shutting down..."
  SessionPersistence.save_session(session_id, browser.session) if session_id
ensure
  SessionPersistence.save_session(session_id, browser.session) if session_id
end