Class: Lita::Handlers::Cmd

Inherits:
Handler
  • Object
show all
Defined in:
lib/lita/handlers/cmd.rb

Instance Method Summary collapse

Instance Method Details

#create_routes(payload) ⇒ Object 



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# File 'lib/lita/handlers/cmd.rb', line 15

def create_routes(payload)
  self.class.route(/^\s*#{config.command_prefix}(\S+)\s*(.*)$/, :run_action, command: true, help: {
    "#{config.command_prefix}ACTION" => "run the specified ACTION. use `#{robot.name} #{config.command_prefix}list` for a list of available actions."
  })
end

#run_action(resp) ⇒ Object 



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# File 'lib/lita/handlers/cmd.rb', line 21

def run_action(resp)
  script = resp.matches[0][0]
  opts = CSV::parse_line(resp.matches[0][1], col_sep: ' ')

  # the script will be the robot name if command_prefix is empty
  return if robot_name and script =~ /^@?#{robot_name}$/i

  return show_help(resp) if script == 'list'

  unless user_is_authorized(script, resp, config)
    resp.reply_privately "Unauthorized to run '#{script}'!" unless config.command_prefix.empty? 
    return
  end

  out = String.new
  err = String.new

  script_path = "#{config.scripts_dir}/#{script}"
  env_vars    = { 'LITA_USER' => resp.user.name }

  Open3.popen3(env_vars, script_path, *opts) do |i, o, e, wait_thread|
    o.each { |line| out << "#{config.stdout_prefix}#{line}" }
    e.each { |line| err << "#{config.stderr_prefix}#{line}" }
  end

  if err != String.new
    out << "\n\n#{err}"
  end

  # Scrub Unicode to ASCII
  encoding_options = {
    :invalid           => :replace,  # Replace invalid byte sequences
    :undef             => :replace,  # Replace anything not defined in ASCII
    :replace           => ''        # Use a blank for those replacements
  }
  ascii_out = out.encode(Encoding.find('ASCII'), encoding_options)

  ascii_out.split("\n").each_slice(50) do |slice|
    resp.reply code_format(slice.join("\n"))
  end
end

#show_help(resp) ⇒ Object 



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# File 'lib/lita/handlers/cmd.rb', line 63

def show_help(resp)
  list = get_script_list(resp, config)

  out = list.sort.join("\n")
  resp.reply_privately code_format(out)
end