Golang New示例

示例#1

文件： server_test.go 项目： getlantern/http-proxy

func basicServer(maxConns uint64, idleTimeout time.Duration) *Server {
	filterChain := filters.Join(
		commonfilter.New(&commonfilter.Options{
			AllowLocalhost: testingLocal,
		}),
		httpconnect.New(&httpconnect.Options{
			IdleTimeout: idleTimeout,
		}),
		forward.New(&forward.Options{
			IdleTimeout: idleTimeout,
		}),
	)
	// Create server
	srv := NewServer(filterChain)

	// Add net.Listener wrappers for inbound connections
	srv.AddListenerWrappers(
		// Limit max number of simultaneous connections
		func(ls net.Listener) net.Listener {
			return listeners.NewLimitedListener(ls, maxConns)
		},
		// Close connections after 30 seconds of no activity
		func(ls net.Listener) net.Listener {
			return listeners.NewIdleConnListener(ls, idleTimeout)
		},
	)

	return srv
}

示例#2

文件： server_test.go 项目： getlantern/http-proxy

// A proxy with a custom origin server connection timeout
func impatientProxy(maxConns uint64, idleTimeout time.Duration) (string, error) {
	filterChain := filters.Join(
		httpconnect.New(&httpconnect.Options{
			IdleTimeout: idleTimeout,
		}),
		forward.New(&forward.Options{
			IdleTimeout: idleTimeout,
		}),
	)
	srv := NewServer(filterChain)

	// Add net.Listener wrappers for inbound connections

	srv.AddListenerWrappers(
		// Close connections after 30 seconds of no activity
		func(ls net.Listener) net.Listener {
			return listeners.NewIdleConnListener(ls, time.Second*30)
		},
	)

	ready := make(chan string)
	wait := func(addr string) {
		ready <- addr
	}
	var err error
	go func(err *error) {
		if *err = srv.ListenAndServeHTTP("localhost:0", wait); err != nil {
			log.Errorf("Unable to serve: %v", err)
		}
	}(&err)
	return <-ready, err
}

示例#3

文件： http_proxy_test.go 项目： journeyqiao/http-proxy

// A proxy with a custom origin server connection timeout
func impatientProxy(maxConns uint64, idleTimeout time.Duration) (*server.Server, error) {
	forwarder, err := forward.New(nil, forward.IdleTimeoutSetter(idleTimeout))
	if err != nil {
		log.Error(err)
	}

	// Middleware: Handle HTTP CONNECT
	httpConnect, err := httpconnect.New(forwarder, httpconnect.IdleTimeoutSetter(idleTimeout))
	if err != nil {
		log.Error(err)
	}

	srv := server.NewServer(httpConnect)

	// Add net.Listener wrappers for inbound connections

	srv.AddListenerWrappers(
		// Close connections after 30 seconds of no activity
		func(ls net.Listener) net.Listener {
			return listeners.NewIdleConnListener(ls, time.Second*30)
		},
	)

	ready := make(chan string)
	wait := func(addr string) {
		ready <- addr
	}
	go func(err *error) {
		if *err = srv.ServeHTTP("localhost:0", wait); err != nil {
			log.Errorf("Unable to serve: %s", err)
		}
	}(&err)
	<-ready
	return srv, err
}

示例#4

文件： http_proxy_test.go 项目： journeyqiao/http-proxy

func basicServer(maxConns uint64, idleTimeout time.Duration) *server.Server {

	// Middleware: Forward HTTP Messages
	forwarder, err := forward.New(nil, forward.IdleTimeoutSetter(idleTimeout))
	if err != nil {
		log.Error(err)
	}

	// Middleware: Handle HTTP CONNECT
	httpConnect, err := httpconnect.New(forwarder, httpconnect.IdleTimeoutSetter(idleTimeout))
	if err != nil {
		log.Error(err)
	}

	// Middleware: Common request filter
	commonHandler, err := commonfilter.New(httpConnect, testingLocal)
	if err != nil {
		log.Error(err)
	}

	// Create server
	srv := server.NewServer(commonHandler)

	// Add net.Listener wrappers for inbound connections
	srv.AddListenerWrappers(
		// Limit max number of simultaneous connections
		func(ls net.Listener) net.Listener {
			return listeners.NewLimitedListener(ls, maxConns)
		},
		// Close connections after 30 seconds of no activity
		func(ls net.Listener) net.Listener {
			return listeners.NewIdleConnListener(ls, idleTimeout)
		},
	)

	return srv
}

示例#5

文件： http_proxy.go 项目： journeyqiao/http-proxy

func main() {
	var err error

	_ = flag.CommandLine.Parse(os.Args[1:])
	if *help {
		flag.Usage()
		return
	}

	// Logging
	// TODO: use real parameters
	err = logging.Init("instanceid", "version", "releasedate", "")
	if err != nil {
		log.Error(err)
	}

	// Middleware (runs in reverse order as they are added)

	// Middleware: Forward HTTP Messages
	forwarder, err := forward.New(nil, forward.IdleTimeoutSetter(time.Duration(*idleClose)*time.Second))
	if err != nil {
		log.Error(err)
	}

	// Middleware: Handle HTTP CONNECT
	httpConnect, err := httpconnect.New(forwarder, httpconnect.IdleTimeoutSetter(time.Duration(*idleClose)*time.Second))
	if err != nil {
		log.Error(err)
	}

	// Middleware: Common request filter
	commonHandler, err := commonfilter.New(httpConnect, testingLocal)
	if err != nil {
		log.Error(err)
	}

	// Create server
	srv := server.NewServer(commonHandler)

	// Add net.Listener wrappers for inbound connections
	srv.AddListenerWrappers(
		// Limit max number of simultaneous connections
		func(ls net.Listener) net.Listener {
			return listeners.NewLimitedListener(ls, *maxConns)
		},
		// Close connections after 30 seconds of no activity
		func(ls net.Listener) net.Listener {
			return listeners.NewIdleConnListener(ls, time.Duration(*idleClose)*time.Second)
		},
	)

	// Serve HTTP/S
	if *https {
		err = srv.ServeHTTPS(*addr, *keyfile, *certfile, nil)
	} else {
		err = srv.ServeHTTP(*addr, nil)
	}
	if err != nil {
		log.Errorf("Error serving: %v", err)
	}
}