func configureTransport(t1 *http.Transport) error {
connPool := new(clientConnPool)
t2 := &Transport{ConnPool: noDialClientConnPool{connPool}}
if err := registerHTTPSProtocol(t1, noDialH2RoundTripper{t2}); err != nil {
return err
}
if t1.TLSClientConfig == nil {
t1.TLSClientConfig = new(tls.Config)
}
if !strSliceContains(t1.TLSClientConfig.NextProtos, "h2") {
t1.TLSClientConfig.NextProtos = append([]string{"h2"}, t1.TLSClientConfig.NextProtos...)
}
upgradeFn := func(authority string, c *tls.Conn) http.RoundTripper {
cc, err := t2.NewClientConn(c)
if err != nil {
c.Close()
return erringRoundTripper{err}
}
connPool.addConn(authorityAddr(authority), cc)
return t2
}
if m := t1.TLSNextProto; len(m) == 0 {
t1.TLSNextProto = map[string]func(string, *tls.Conn) http.RoundTripper{
"h2": upgradeFn,
}
} else {
m["h2"] = upgradeFn
}
return nil
}
func NewClient(e *Env, config *ClientConfig, needCookie bool) *Client {
var jar *cookiejar.Jar
if needCookie && (config == nil || config.UseCookies) && e.GetTorMode().UseCookies() {
jar, _ = cookiejar.New(nil)
}
var timeout time.Duration
// from http.DefaultTransport;
//
// TODO: change this back (see comment below) to allow
// shared Transport after we switch to go1.7
xprt := http.Transport{
Proxy: http.ProxyFromEnvironment,
Dial: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
// This disables HTTP/2. There's a bug introduced between (go1.6, go1.6.3]
// that makes client.Get hang on certain HTTP/2 servers. See CORE-3441 for
// details.
//
// TODO: remove this after the bug is fixed.
xprt.TLSNextProto = make(
map[string]func(authority string, c *tls.Conn) http.RoundTripper)
if (config != nil && config.RootCAs != nil) || e.GetTorMode().Enabled() {
if config != nil && config.RootCAs != nil {
xprt.TLSClientConfig = &tls.Config{RootCAs: config.RootCAs}
}
if e.GetTorMode().Enabled() {
dialSocksProxy := socks.DialSocksProxy(socks.SOCKS5, e.GetTorProxy())
xprt.Dial = dialSocksProxy
} else {
xprt.Proxy = http.ProxyFromEnvironment
}
}
if config == nil || config.Timeout == 0 {
timeout = HTTPDefaultTimeout
} else {
timeout = config.Timeout
}
ret := &Client{
cli: &http.Client{Timeout: timeout},
config: config,
}
if jar != nil {
ret.cli.Jar = jar
}
ret.cli.Transport = &xprt
return ret
}
func configureTransport(t1 *http.Transport) (*Transport, error) {
connPool := new(clientConnPool)
t2 := &Transport{
ConnPool: noDialClientConnPool{connPool},
t1: t1,
}
connPool.t = t2
if err := registerHTTPSProtocol(t1, noDialH2RoundTripper{t2}); err != nil {
return nil, err
}
if t1.TLSClientConfig == nil {
t1.TLSClientConfig = new(tls.Config)
}
if !strSliceContains(t1.TLSClientConfig.NextProtos, "h2") {
t1.TLSClientConfig.NextProtos = append([]string{"h2"}, t1.TLSClientConfig.NextProtos...)
}
if !strSliceContains(t1.TLSClientConfig.NextProtos, "http/1.1") {
t1.TLSClientConfig.NextProtos = append(t1.TLSClientConfig.NextProtos, "http/1.1")
}
upgradeFn := func(authority string, c *tls.Conn) http.RoundTripper {
addr := authorityAddr(authority)
if used, err := connPool.addConnIfNeeded(addr, t2, c); err != nil {
go c.Close()
return erringRoundTripper{err}
} else if !used {
// Turns out we don't need this c.
// For example, two goroutines made requests to the same host
// at the same time, both kicking off TCP dials. (since protocol
// was unknown)
go c.Close()
}
return t2
}
if m := t1.TLSNextProto; len(m) == 0 {
t1.TLSNextProto = map[string]func(string, *tls.Conn) http.RoundTripper{
"h2": upgradeFn,
}
} else {
m["h2"] = upgradeFn
}
return t2, nil
}