Class: Merb::Rack::Static

Inherits:
Middleware show all
Defined in:
lib/merb-core/rack/middleware/static.rb

Instance Method Summary collapse

Methods included from DeferrableMiddleware

#deferred?

Constructor Details

#initialize(app, directory) ⇒ Static

:api: private


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# File 'lib/merb-core/rack/middleware/static.rb', line 6

def initialize(app,directory)
  super(app)
  @static_server = ::Rack::File.new(directory)
end

Instance Method Details

#call(env) ⇒ Object

:api: plugin


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# File 'lib/merb-core/rack/middleware/static.rb', line 12

def call(env)        
  path = if env[Merb::Const::PATH_INFO]
           env[Merb::Const::PATH_INFO].chomp(Merb::Const::SLASH)
         else
           Merb::Const::EMPTY_STRING
         end
  cached_path = (path.empty? ? 'index' : path) + '.html'
  
  if file_exist?(path) && env[Merb::Const::REQUEST_METHOD] =~ /GET|HEAD/ # Serve the file if it's there and the request method is GET or HEAD
    serve_static(env)
  elsif file_exist?(cached_path) && env[Merb::Const::REQUEST_METHOD] =~ /GET|HEAD/ # Serve the page cache if it's there and the request method is GET or HEAD
    env[Merb::Const::PATH_INFO] = cached_path
    serve_static(env)
  elsif path =~ /favicon\.ico/
    return [404, { Merb::Const::CONTENT_TYPE => Merb::Const::TEXT_SLASH_HTML }, "404 Not Found."]
  else
    @app.call(env)
  end
end

#file_exist?(path) ⇒ Boolean

Parameters

path<String>

The path to the file relative to the server root.

Returns

Boolean

True if file exists under the server root and is readable.

:api: private

Returns:

  • (Boolean)

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# File 'lib/merb-core/rack/middleware/static.rb', line 39

def file_exist?(path)
  full_path = ::File.join(@static_server.root, ::Merb::Parse.unescape(path))
  ::File.file?(full_path) && ::File.readable?(full_path)
end

#serve_static(env) ⇒ Object

Parameters

env<Hash>

Environment variables to pass on to the server.

:api: private


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# File 'lib/merb-core/rack/middleware/static.rb', line 48

def serve_static(env)
  env[Merb::Const::PATH_INFO] = ::Merb::Parse.unescape(env[Merb::Const::PATH_INFO])
  @static_server.call(env)
end