Class: Localtunnel::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/localtunnel/client.rb

Constant Summary collapse

@@pid = 
nil
@@url = 
nil

Class Method Summary collapse

Class Method Details

.execution_string(log, options) ⇒ Object 



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# File 'lib/localtunnel/client.rb', line 43

def self.execution_string(log, options)
  s = "exec lt"
  s << " -p '#{options[:port]}'" if options.key?(:port)
  s << " -s '#{options[:subdomain]}'" if options.key?(:subdomain)
  s << " -h '#{options[:remote_host]}'" if options.key?(:remote_host)
  s << " -l '#{options[:local_host]}'" if options.key?(:local_host)
  s << " > #{log.path} 2>&1"
end

.package_installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/localtunnel/client.rb', line 37

def self.package_installed?
  !`lt --version`.empty?
rescue Errno::ENOENT
  false
end

.parse_url!(log, max_seconds = 10) ⇒ Object

Raises:



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# File 'lib/localtunnel/client.rb', line 52

def self.parse_url!(log, max_seconds = 10)
  max_seconds.times do
    sleep 1
    log.rewind
    log_data = log.read

    if match_data = log_data.match(/^your url is: (.*)$/)
      return match_data.captures.first
    elsif log_data.match(/^Error: (.*)$/)
      raise ClientConnectionFailedError
    end
  end

  stop
  raise ClientConnectionFailedError # Timeout.
end

.running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/localtunnel/client.rb', line 29

def self.running?
  !@@pid.nil?
end

.start(options = {}) ⇒ Object

Raises:



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# File 'lib/localtunnel/client.rb', line 8

def self.start(options = {})
  return if running?

  raise NpmPackageNotFoundError unless package_installed?

  log = Tempfile.new("localtunnel")
  @@pid = Process.spawn(execution_string(log, options))

  at_exit { stop } # Ensure process is killed if Ruby exits.

  @@url = parse_url!(log)
end

.stop ⇒ Object 



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# File 'lib/localtunnel/client.rb', line 21

def self.stop
  return unless running?

  `kill -9 #{@@pid} 1>/dev/null 2>&1` # Can't use Process.kill, since JRuby on Raspbian doesn't support it.

  @@pid = nil
end

.url ⇒ Object 



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# File 'lib/localtunnel/client.rb', line 33

def self.url
  @@url if running?
end