Class: Falcon::Server

Inherits:
Async::HTTP::Server
  • Object
show all
Defined in:
lib/falcon/server.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, *args) ⇒ Server 



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# File 'lib/falcon/server.rb', line 25

def initialize(app, *args)
  super(*args)
  
  @app = app
end

Instance Method Details

#failure_response(exception) ⇒ Object 



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# File 'lib/falcon/server.rb', line 101

def failure_response(exception)
  [500, {'Content-Type' => 'text/plain'}, ["Request failed due to: #{exception.class}: #{exception.message}"]]
end

#handle_request(request, peer, address) ⇒ Object 



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# File 'lib/falcon/server.rb', line 35

def handle_request(request, peer, address)
  request_path, query_string = request.path.split('?', 2)
  server_name, server_port = (request.authority || '').split(':', 2)
  
  input = StringIO.new(request.body || '')
  input.set_encoding(Encoding::BINARY)
  
  headers = request.headers.to_http_hash
  
  env = {
    'rack.version' => [2, 0, 0],
    
    'rack.input' => input,
    'rack.errors' => $stderr,
    
    'rack.multithread' => true,
    'rack.multiprocess' => true,
    'rack.run_once' => false,
    
    # The HTTP request method, such as “GET” or “POST”. This cannot ever be an empty string, and so is always required.
    'REQUEST_METHOD' => request.method,
    
    # The initial portion of the request URL's “path” that corresponds to the application object, so that the application knows its virtual “location”. This may be an empty string, if the application corresponds to the “root” of the server.
    'SCRIPT_NAME' => '',
    
    # The remainder of the request URL's “path”, designating the virtual “location” of the request's target within the application. This may be an empty string, if the request URL targets the application root and does not have a trailing slash. This value may be percent-encoded when originating from a URL.
    'PATH_INFO' => request_path,
    
    # The portion of the request URL that follows the ?, if any. May be empty, but is always required!
    'QUERY_STRING' => query_string || '',
    
    # The server protocol, e.g. HTTP/1.1
    'SERVER_PROTOCOL' => request.version,
    'rack.url_scheme' => 'http',
    
    # I'm not sure what sane defaults should be here:
    'SERVER_NAME' => server_name || '',
    'SERVER_PORT' => server_port || '',
  }.merge(headers)
  
  env['rack.hijack?'] = true
  env['rack.hijack'] = lambda do
    env['rack.hijack_io'] = peer
  end
  
  if content_type = request.headers['HTTP_CONTENT_TYPE']
    env['CONTENT_TYPE'] = content_type
  end
  
  if remote_address = peer.remote_address
    env['REMOTE_ADDR'] = remote_address.ip_address if remote_address.ip?
  end
  
  response = @app.call(env)
  
  if env['rack.hijack_io']
    throw :hijack
  else
    return response
  end
rescue => exception
  logger.error "#{exception.class}: #{exception.message}\n\t#{$!.backtrace.join("\n\t")}"
  
  return failure_response(exception)
end

#logger ⇒ Object 



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# File 'lib/falcon/server.rb', line 31

def logger
  Async.logger
end