Class: Closure::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/closure/server.rb

Overview

The Closure Script rack server. There is Middleware available too.

Examples:

config.ru

require 'closure'
sources = Closure::Sources.new
sources.add '/myapp', '../src'
run Closure::Server.new sources

Instance Method Summary collapse

Constructor Details

#initialize(sources, home_page = nil) ⇒ Server

Returns a new instance of Server.

Parameters:

  • sources (Sources) —

    An instance configured with your scripts.

  • home_page (home_page) (defaults to: nil) —

    Optional file or closure-script to serve as root.



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# File 'lib/closure/server.rb', line 29

def initialize(sources, home_page = nil)
  @sources = sources
  @home_page = home_page
  @working_dir = Dir.getwd
end

Instance Method Details

#call(env) ⇒ Array

Rack interface.

Parameters:

  • env (Hash) —

    Rack environment.

Returns:

  • (Array) —
    status, headers, body


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# File 'lib/closure/server.rb', line 38

def call(env)
  path_info = Rack::Utils.unescape(env['PATH_INFO'])
  return not_found if path_info.include? '..' # unsafe
  # Stand-alone projects will find this useful
  if @home_page and path_info == '/'
    Dir.chdir @working_dir
    response = FileResponse.new(env, @home_page)
    response = Script.new(env, @sources, @home_page).response unless response.found?
    if response.header["X-Cascade"] == "pass"
      if ENV["CLOSURE_SCRIPT_WELCOME"]
        welcome = File.join Closure.base_path, 'scripts', 'welcome'
        response = Script.new(env, @sources, welcome).response
      end
    end
    return response.finish
  end
  # Usurp the deps.js in detected Closure Library
  begin
    if path_info == @sources.deps_js(env)
      return @sources.deps_response(File.dirname(path_info), env).finish
    end
  rescue Sources::BaseJsNotFoundError
  end
  # Then check all the sources
  @sources.each do |dir, path|
    next unless path
    if path_info =~ %r{^#{Regexp.escape(path)}(/.*|)$}
      Dir.chdir @working_dir
      filename = File.join(dir, $1)
      response = FileResponse.new(env, filename)
      if !response.found? and File.extname(path_info) == ''
        response = FileResponse.new(env, filename + '.html')
      end
      response = Script.new(env, @sources, filename).response unless response.found?
      return response.finish
    end
  end
  not_found
end