Module: Caldecott::Client

Defined in:
lib/caldecott/client/client.rb,
lib/caldecott/client/tunnel.rb,
lib/caldecott/client/http_tunnel.rb,
lib/caldecott/client/websocket_tunnel.rb

Defined Under Namespace

Modules: Tunnel Classes: HttpTunnel, WebSocketTunnel

Class Method Summary collapse

Class Method Details

.sanitize_url(tun_url) ⇒ Object 



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# File 'lib/caldecott/client/client.rb', line 7

def self.sanitize_url(tun_url)
  tun_url = tun_url =~ /(http|https|ws).*/i ? tun_url : "https://#{tun_url}"
end

.start(opts) ⇒ Object 



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# File 'lib/caldecott/client/client.rb', line 11

def self.start(opts)
  local_port = opts[:local_port]
  tun_url    = opts[:tun_url]
  dst_host   = opts[:dst_host]
  dst_port   = opts[:dst_port]
  log_file   = opts[:log_file]
  log_level  = opts[:log_level]
  auth_token = opts[:auth_token]

  @quiet = opts[:quiet]

  trap("TERM") { stop }
  trap("INT") { stop }

  tun_url = sanitize_url(tun_url)

  EM.run do
    unless @quiet
      puts "Starting local server on port #{local_port} to #{tun_url}"
    end

    EM.start_server("0.0.0.0", local_port, TcpConnection) do |conn|
      # avoid races between tunnel setup and incoming local data
      conn.pause

      log = SessionLogger.new("client", log_file)
      log.level = SessionLogger.severity_from_string(log_level)

      tun = nil

      conn.onopen do
        log.debug "local connected"
        tun = Tunnel.start(log, tun_url, dst_host, dst_port, auth_token)
      end

      tun.onopen do
        log.debug "tunnel connected"
        conn.resume
      end

      conn.onreceive do |data|
        log.debug "l -> t #{data.length}"
        tun.send_data(data)
      end

      tun.onreceive do |data|
        log.debug("l <- t #{data.length}")
        conn.send_data(data)
      end

      conn.onclose do
        log.debug "local closed"
        tun.close
      end

      tun.onclose do
        log.debug "tunnel closed"
        conn.close_connection_after_writing
      end
    end
  end
end

.stop ⇒ Object 



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# File 'lib/caldecott/client/client.rb', line 74

def self.stop
  puts "Caldecott shutting down" unless @quiet
  EM.stop
end