Class: EsiForRack::Lookup::PassThrough

Inherits:
EsiForRack::Lookup show all
Defined in:
lib/esi_for_rack/lookup.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ PassThrough

Returns a new instance of PassThrough.



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# File 'lib/esi_for_rack/lookup.rb', line 7

def initialize(app, env)
  @app = app
  @env = env
end

Instance Method Details

#[](path) ⇒ Object 



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# File 'lib/esi_for_rack/lookup.rb', line 12

def [](path)
  uri = URI(path)
  
  request = {
    "REQUEST_METHOD" => "GET",
    "SERVER_NAME" => @env['SERVER_NAME'],
    "SERVER_PORT" => @env['SERVER_PORT'],
    "QUERY_STRING" => uri.query.to_s,
    "PATH_INFO" => (!uri.path || uri.path.empty?) ? "/" : uri.path,
    "rack.url_scheme" => uri.scheme || @env['rack.url_scheme'] || 'http',
    "SCRIPT_NAME" => ""
  }

  response = @app.call(request)
  if response.first == 200
    response_body = response.last
    if response_body.respond_to? :to_str
      response_body.to_str
    elsif response_body.respond_to?(:each)
      body = ''
      response_body.each { |part|
        body << part.to_s
      }
      body
    else
      raise TypeError, "stringable or iterable required"
    end
  else
    nil
  end

rescue URI::InvalidURIError
  nil
end