Class: Adva::Rack::Static

Inherits:
Object
  • Object
show all
Defined in:
lib/adva/rack/static.rb

Constant Summary collapse

FILE_METHODS = 
%w(GET HEAD)
STATIC_PATHS = 
%w(/images/adva /javascripts/adva /stylesheets/adva)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Static

Returns a new instance of Static.



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# File 'lib/adva/rack/static.rb', line 11

def initialize(app)
  @app = app
  @directories = Adva.engines.map { |engine| ::Rack::File.new(engine.root.join('public')) }
end

Instance Attribute Details

#app ⇒ Object (readonly)

Returns the value of attribute app.



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# File 'lib/adva/rack/static.rb', line 9

def app
  @app
end

#directories ⇒ Object (readonly)

Returns the value of attribute directories.



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# File 'lib/adva/rack/static.rb', line 9

def directories
  @directories
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/adva/rack/static.rb', line 16

def call(env)
  path   = env['PATH_INFO'].chomp('/')
  method = env['REQUEST_METHOD']

  if FILE_METHODS.include?(method) && static?(path)
    if directory = directories.detect { |directory| exist?(directory, path) }
      return directory.call(env)
    else
      return not_found(path)
    end
  end

  app.call(env)
end

#exist?(directory, path) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/adva/rack/static.rb', line 35

def exist?(directory, path)
  File.file?(File.join(directory.root, ::Rack::Utils.unescape(path)))
end

#not_found(path) ⇒ Object 



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# File 'lib/adva/rack/static.rb', line 39

def not_found(path)
  body = "File not found: #{path}\n"
  headers = {
    'Content-Type'   => 'text/plain',
    'Content-Length' => body.size.to_s,
    'X-Cascade'      => 'pass'
  }
  [404, headers, [body]]
end

#static?(path) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/adva/rack/static.rb', line 31

def static?(path)
  STATIC_PATHS.detect { |static_path| path.starts_with?(static_path)  }
end