Golang Transport.ResponseHeaderTimeout方法代码示例

// Creates a new HTTP connection pool using the given address and pool parameters.
//
// 'addr' is a net.Dial()-style 'host:port' destination for making the TCP connection for
// HTTP/HTTPS traffic.  It will be used as the hostname by default for virtual hosting
// and SSL certificate validation; if you'd like to use a different hostname,
// set params.HostHeader.
func NewSimplePool(addr string, params ConnectionParams) *SimplePool {
	pool := &SimplePool{
		addr:   addr,
		params: params,
		client: new(http.Client),
	}

	// setup HTTP transport
	transport := new(http.Transport)
	transport.ResponseHeaderTimeout = params.ResponseTimeout
	transport.MaxIdleConnsPerHost = params.MaxIdle
	transport.Proxy = http.ProxyFromEnvironment
	if params.Dial == nil {
		// dialTimeout could only be used in none proxy requests since it talks directly
		// to pool.addr
		if getenvEitherCase("HTTP_PROXY") == "" {
			transport.Dial = pool.dialTimeout
		}
	} else {
		transport.Dial = params.Dial
	}
	pool.transport = transport
	pool.client.Transport = transport

	if params.UseSSL && params.SkipVerifySSL {
		transport.TLSClientConfig = &tls.Config{
			InsecureSkipVerify: true,
		}
	}

	return pool
}

// New creates a new Firebase reference
func New(url string) *Firebase {

	var tr *http.Transport
	tr = &http.Transport{
		DisableKeepAlives: true, // https://code.google.com/p/go/issues/detail?id=3514
		Dial: func(network, address string) (net.Conn, error) {
			start := time.Now()
			c, err := net.DialTimeout(network, address, TimeoutDuration)
			tr.ResponseHeaderTimeout = TimeoutDuration - time.Since(start)
			return c, err
		},
	}

	var client *http.Client
	client = &http.Client{
		Transport:     tr,
		CheckRedirect: redirectPreserveHeaders,
	}

	return &Firebase{
		url:          sanitizeURL(url),
		params:       _url.Values{},
		client:       client,
		stopWatching: make(chan struct{}),
	}
}

// Creates a new HTTP connection pool using the given address and pool parameters.
//
// 'addr' is a net.Dial()-style 'host:port' destination for making the TCP connection for
// HTTP/HTTPS traffic.  It will be used as the hostname by default for virtual hosting
// and SSL certificate validation; if you'd like to use a different hostname,
// set params.HostHeader.
func NewSimplePool(addr string, params ConnectionParams) *SimplePool {
	pool := &SimplePool{
		addr:   addr,
		params: params,
		client: new(http.Client),
	}

	// It's desirable to enforce the timeout at the client-level since it
	// includes the connection time, redirects and the time to finish reading
	// the full response. Unlike ResponseHeaderTimeout supported by
	// `http.Transport` which merely accounts for the timeout to receive the
	// first response header byte. It ignores the time to send the request or
	// the time to read the full response.
	pool.client.Timeout = params.ResponseTimeout

	// setup HTTP transport
	transport := new(http.Transport)
	transport.ResponseHeaderTimeout = params.ResponseTimeout
	transport.MaxIdleConnsPerHost = params.MaxIdle

	if params.Proxy != nil {
		transport.Proxy = params.Proxy
	} else {
		transport.Proxy = http.ProxyFromEnvironment
	}

	if params.Dial == nil {
		// dialTimeout could only be used in none proxy requests since it talks directly
		// to pool.addr
		if getenvEitherCase("HTTP_PROXY") == "" && params.Proxy == nil {
			transport.Dial = pool.dialTimeout
		}
	} else {
		transport.Dial = params.Dial
	}
	pool.transport = transport
	pool.client.Transport = transport

	if params.UseSSL && params.SkipVerifySSL {
		transport.TLSClientConfig = &tls.Config{
			InsecureSkipVerify: true,
		}
	}

	return pool
}

// New creates a new Firebase reference. Using a custom client invalidates the
// TimeoutDuration guarantee.
func New(url string, client *http.Client) *Firebase {
	if client == nil {
		var tr *http.Transport
		tr = &http.Transport{
			Dial: func(network, address string) (net.Conn, error) {
				start := time.Now()
				c, err := net.DialTimeout(network, address, TimeoutDuration)
				tr.ResponseHeaderTimeout = TimeoutDuration - time.Since(start)
				return c, err
			},
		}
		client = &http.Client{Transport: tr}
	}

	return &Firebase{
		url:          sanitizeURL(url),
		params:       _url.Values{},
		client:       client,
		stopWatching: make(chan struct{}),
	}
}

// New creates a new Firebase reference
func New(url string) *Firebase {

	var tr *http.Transport
	tr = &http.Transport{
		DisableKeepAlives: true, // https://code.google.com/p/go/issues/detail?id=3514
		TLSClientConfig:   &tls.Config{InsecureSkipVerify: true},
		Dial: func(network, address string) (net.Conn, error) {
			start := time.Now()
			c, err := net.DialTimeout(network, address, TimeoutDuration)
			tr.ResponseHeaderTimeout = TimeoutDuration - time.Since(start)
			return c, err
		},
	}

	return &Firebase{
		url:          sanitizeURL(url),
		params:       _url.Values{},
		client:       &http.Client{Transport: tr},
		stopWatching: make(chan struct{}),
	}
}

func TestNewWithProvidedHttpClient(t *testing.T) {
	t.Parallel()

	var tr *http.Transport
	tr = &http.Transport{
		DisableKeepAlives: true, // https://code.google.com/p/go/issues/detail?id=3514
		Dial: func(network, address string) (net.Conn, error) {
			start := time.Now()
			c, err := net.DialTimeout(network, address, TimeoutDuration)
			tr.ResponseHeaderTimeout = TimeoutDuration - time.Since(start)
			return c, err
		},
	}
	var client = http.Client{Transport: tr}

	testCases := []struct {
		givenURL string
	}{
		{
			URL,
		},
		{
			URL + "/",
		},
		{
			"somefirebaseapp.firebaseIO.com",
		},
		{
			"somefirebaseapp.firebaseIO.com/",
		},
	}

	for _, tt := range testCases {
		fb := New(tt.givenURL, &client)
		assert.Equal(t, URL, fb.url, "givenURL: %s", tt.givenURL)
	}
}

// Transport returns an http.RoundTripper with the correct timeouts
func (ci *ConfigInfo) Transport() http.RoundTripper {
	noTransport.Do(func() {
		// Start with a sensible set of defaults then override.
		// This also means we get new stuff when it gets added to go
		t := new(http.Transport)
		setDefaults(t, http.DefaultTransport.(*http.Transport))
		t.Proxy = http.ProxyFromEnvironment
		t.MaxIdleConnsPerHost = 4 * (ci.Checkers + ci.Transfers + 1)
		t.TLSHandshakeTimeout = ci.ConnectTimeout
		t.ResponseHeaderTimeout = ci.Timeout
		t.TLSClientConfig = &tls.Config{InsecureSkipVerify: ci.InsecureSkipVerify}
		t.DisableCompression = *noGzip
		// Set in http_old.go initTransport
		//   t.Dial
		// Set in http_new.go initTransport
		//   t.DialContext
		//   t.IdelConnTimeout
		//   t.ExpectContinueTimeout
		ci.initTransport(t)
		// Wrap that http.Transport in our own transport
		transport = NewTransport(t, ci.DumpHeaders, ci.DumpBodies)
	})
	return transport
}