Class: Spar::Static

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

Instance Method Summary collapse

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/spar/static.rb', line 8

def call(env)
  path = env["PATH_INFO"]

  # Try getting the file form the public directory - this overrides everything
  public_path = "#{Spar.root.join('public')}/#{path}"
  if File.exists?(public_path)
    return send_static(public_path, env)
  end

  # Try getting the file form the static directory
  static_path = "#{Spar.root.join('static')}/#{path}"
  if File.exists?(static_path)
    return send_static(static_path, env)
  end

  # Try getting the file form the local spar gems assets
  spar_file = "#{File.dirname(__FILE__)}/assets/#{path.gsub('__spar__/','')}"
  if File.exists?(spar_file)
    return send_static(spar_file, env) 
  end

  # Return a 404 but let it pass on with the X-Cascade header
  [ 404, { "Content-Type" => "text/plain", "Content-Length" => "9", "X-Cascade" => "pass" }, [ "Not found" ] ]
end

#send_static(path, env) ⇒ Object 



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# File 'lib/spar/static.rb', line 33

def send_static(path, env)
  last_modified = File.mtime(path).httpdate
  return [304, {}, []] if env['HTTP_IF_MODIFIED_SINCE'] == last_modified
  [ 200, 
    {
      "Last-Modified" => last_modified,
      "Content-Type" => Rack::Mime.mime_type(File.extname(path), 'text/plain')
    },
    File.new(path)
  ]
end