Golang Transport.DisableCompression方法代码示例

// ConfigureTransport configures the specified Transport according to the
// specified proto and addr.
// If the proto is unix (using a unix socket to communicate) or npipe the
// compression is disabled.
func ConfigureTransport(tr *http.Transport, proto, addr string) error {
	switch proto {
	case "unix":
		// No need for compression in local communications.
		tr.DisableCompression = true
		tr.Dial = func(_, _ string) (net.Conn, error) {
			return net.DialTimeout(proto, addr, defaultTimeout)
		}
	case "npipe":
		// No need for compression in local communications.
		tr.DisableCompression = true
		tr.Dial = func(_, _ string) (net.Conn, error) {
			return DialPipe(addr, defaultTimeout)
		}
	default:
		tr.Proxy = http.ProxyFromEnvironment
		dialer, err := DialerFromEnvironment(&net.Dialer{
			Timeout: defaultTimeout,
		})
		if err != nil {
			return err
		}
		tr.Dial = dialer.Dial
	}
	return nil
}

// ConfigureTCPTransport configures the specified Transport according to the
// specified proto and addr.
// If the proto is unix (using a unix socket to communicate) the compression
// is disabled.
func ConfigureTCPTransport(tr *http.Transport, proto, addr string) {
	// Why 32? See https://github.com/docker/docker/pull/8035.
	timeout := 32 * time.Second
	if proto == "unix" {
		// No need for compression in local communications.
		tr.DisableCompression = true
		tr.Dial = func(_, _ string) (net.Conn, error) {
			return net.DialTimeout(proto, addr, timeout)
		}
	} else {
		tr.Proxy = http.ProxyFromEnvironment
		tr.Dial = (&net.Dialer{Timeout: timeout}).Dial
	}
}

func newHttpTransporter() (trans *httpTransporter) {
	tr := new(http.Transport)
	tr.DisableCompression = true
	tr.DisableKeepAlives = false
	tr.MaxIdleConnsPerHost = 4
	jar := cookieJar
	if DisableGlobalCookie {
		jar, _ = cookiejar.New(nil)
	}
	client := new(http.Client)
	client.Jar = jar
	client.Transport = tr
	trans = new(httpTransporter)
	trans.Client = client
	trans.Header = new(http.Header)
	return
}

func configureTransport(tr *http.Transport, proto, addr string) *http.Transport {
	if tr == nil {
		tr = &http.Transport{}
	}

	if proto == "unix" {
		// No need for compression in local communications.
		tr.DisableCompression = true
		tr.Dial = func(_, _ string) (net.Conn, error) {
			return net.Dial(proto, addr)
		}
	} else {
		tr.Proxy = http.ProxyFromEnvironment
		tr.Dial = (&net.Dialer{}).Dial
	}

	return tr
}

// defaultTransport creates a new http.Transport with Docker's
// default transport configuration.
func defaultTransport(proto, addr string) *http.Transport {
	tr := new(http.Transport)

	// Why 32? See https://github.com/docker/docker/pull/8035.
	timeout := 32 * time.Second
	if proto == "unix" {
		// No need for compression in local communications.
		tr.DisableCompression = true
		tr.Dial = func(_, _ string) (net.Conn, error) {
			return net.DialTimeout(proto, addr, timeout)
		}
	} else if proto == "npipe" {
		tr.Dial = func(_, _ string) (net.Conn, error) {
			return DialPipe(addr, timeout)
		}
	} else {
		tr.Proxy = http.ProxyFromEnvironment
		tr.Dial = (&net.Dialer{Timeout: timeout}).Dial
	}

	return tr
}

// 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
}