class Rack::Adapter::Rails

Constants

FILE_METHODS

Public Class Methods

new(options = {}) click to toggle source
# File lib/rack/adapter/rails.rb, line 18
def initialize(options = {})
  @root   = options[:root]        || Dir.pwd
  @env    = options[:environment] || 'development'
  @prefix = options[:prefix]

  load_application

  @rails_app = self.class.rack_based? ? ActionController::Dispatcher.new : CgiApp.new
  @file_app  = Rack::File.new(::File.join(RAILS_ROOT, "public"))
end
rack_based?() click to toggle source
# File lib/rack/adapter/rails.rb, line 67
def self.rack_based?
  rails_version = ::Rails::VERSION
  return false if rails_version::MAJOR < 2
  return false if rails_version::MAJOR == 2 && rails_version::MINOR < 2
  return false if rails_version::MAJOR == 2 && rails_version::MINOR == 2 && rails_version::TINY < 3
  true # >= 2.2.3
end

Public Instance Methods

call(env) click to toggle source
# File lib/rack/adapter/rails.rb, line 49
def call(env)
  path        = env['PATH_INFO'].chomp('/')
  method      = env['REQUEST_METHOD']
  cached_path = (path.empty? ? 'index' : path) + ActionController::Base.page_cache_extension

  if FILE_METHODS.include?(method)
    if file_exist?(path)              # Serve the file if it's there
      return @file_app.call(env)
    elsif file_exist?(cached_path)    # Serve the page cache if it's there
      env['PATH_INFO'] = cached_path
      return @file_app.call(env)
    end
  end

  # No static file, let Rails handle it
  @rails_app.call(env)
end
file_exist?(path) click to toggle source
# File lib/rack/adapter/rails.rb, line 44
def file_exist?(path)
  full_path = ::File.join(@file_app.root, Utils.unescape(path))
  ::File.file?(full_path) && ::File.readable_real?(full_path)
end
load_application() click to toggle source
# File lib/rack/adapter/rails.rb, line 29
def load_application
  ENV['RAILS_ENV'] = @env

  require "#{@root}/config/environment"
  require 'dispatcher'

  if @prefix
    if ActionController::Base.respond_to?(:relative_url_root=)
      ActionController::Base.relative_url_root = @prefix # Rails 2.1.1
    else
      ActionController::AbstractRequest.relative_url_root = @prefix
    end
  end
end