Class: Async::HTTP::Protocol::HTTP1::Server

Inherits:
Connection
  • Object
show all
Defined in:
lib/async/http/protocol/http1/server.rb

Instance Attribute Summary

Attributes inherited from Connection

#count, #version

Instance Method Summary collapse

Methods inherited from Connection

#close, #connected?, #http1?, #http2?, #initialize, #multiplex, #peer, #read_line, #read_line?, #reusable?

Constructor Details

This class inherits a constructor from Async::HTTP::Protocol::HTTP1::Connection

Instance Method Details

#each(task: Task.current) ⇒ Object

Server loop.



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# File 'lib/async/http/protocol/http1/server.rb', line 54

def each(task: Task.current)
  while request = next_request
    response = yield(request, self)
    
    return if @stream.nil? or @stream.closed?
    
    if response
      # Try to avoid holding on to request, to minimse GC overhead:
      head = request.head?
      
      unless request.body?
        # If there is no body, #finish is a no-op.
        request = nil
      end
      
      write_response(@version, response.status, response.headers)
      
      if body = response.body and protocol = response.protocol
        stream = write_upgrade_body(protocol)
        
        # At this point, the request body is hijacked, so we don't want to call #finish below.
        request = nil
        
        body.call(stream)
      else
        write_body(@version, body, head)
      end
    else
      # If the request failed to generate a response, it was an internal server error:
      write_response(@version, 500, {})
      write_body(@version, nil)
    end
    
    # Gracefully finish reading the request body if it was not already done so.
    request&.finish
    
    # This ensures we yield at least once every iteration of the loop and allow other fibers to execute.
    task.yield
  end
end

#fail_request(status) ⇒ Object 



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# File 'lib/async/http/protocol/http1/server.rb', line 28

def fail_request(status)
  @persistent = false
  write_response(@version, status, {}, nil)
end

#next_request ⇒ Object 



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# File 'lib/async/http/protocol/http1/server.rb', line 33

def next_request
  # The default is true.
  return unless @persistent
  
  # Read an incoming request:
  return unless request = Request.read(self)
  
  unless persistent?(request.version, request.headers)
    @persistent = false
  end
  
  return request
rescue Async::TimeoutError
  fail_request(408)
  raise
rescue
  fail_request(400)
  raise
end