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remove dialing work from TransportAuthenticator

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This commit is contained in:
iamqizhao
2015-04-21 17:22:15 -07:00
parent 5f7c0caeb4
commit dfe197d91f
2 changed files with 14 additions and 17 deletions
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13
credentials/credentials.go
View File

@ -73,10 +73,9 @@ type Credentials interface {
// TransportAuthenticator defines the common interface all supported transport
// authentication protocols (e.g., TLS, SSL) must implement.
type TransportAuthenticator interface {
// Dial connects to the given network address using dialer and then
// does the authentication handshake specified by the corresponding
// authentication protocol.
Dial(dialer func(string, time.Duration) (net.Conn, error), addr string, timeout time.Duration) (net.Conn, error)
// Handshake does the authentication handshake specified by the corresponding
// authentication protocol on the given rawConn.
Handshake(addr string, rawConn net.Conn, timeout time.Duration) (net.Conn, error)
// NewListener creates a listener which accepts connections with requested
// authentication handshake.
NewListener(lis net.Listener) net.Listener
@ -101,7 +100,7 @@ func (timeoutError) Error() string { return "credentials: Dial timed out" }
func (timeoutError) Timeout() bool { return true }
func (timeoutError) Temporary() bool { return true }
func (c *tlsCreds) Dial(dialer func(addr string, timeout time.Duration) (net.Conn, error), addr string, timeout time.Duration) (net.Conn, error) {
func (c *tlsCreds) Handshake(addr string, rawConn net.Conn, timeout time.Duration) (_ net.Conn, err error) {
// borrow some code from tls.DialWithDialer
var errChannel chan error
if timeout != 0 {
@ -110,10 +109,6 @@ func (c *tlsCreds) Dial(dialer func(addr string, timeout time.Duration) (net.Con
errChannel <- timeoutError{}
})
}
rawConn, err := dialer(addr, timeout)
if err != nil {
return nil, err
}
if c.config.ServerName == "" {
colonPos := strings.LastIndex(addr, ":")
if colonPos == -1 {

18
transport/http2_client.go
View File

@ -104,11 +104,13 @@ func newHTTP2Client(addr string, opts *ConnectOptions) (_ ClientTransport, err e
return net.DialTimeout("tcp", addr, timeout)
}
}
var (
connErr error
conn net.Conn
)
scheme := "http"
startT := time.Now()
timeout := opts.Timeout
conn, connErr := opts.Dialer(addr, timeout)
if connErr != nil {
return nil, ConnectionErrorf("transport: %v", connErr)
}
for _, c := range opts.AuthOptions {
if ccreds, ok := c.(credentials.TransportAuthenticator); ok {
scheme = "https"
@ -116,13 +118,13 @@ func newHTTP2Client(addr string, opts *ConnectOptions) (_ ClientTransport, err e
// multiple ones provided. Revisit this if it is not appropriate. Probably
// place the ClientTransport construction into a separate function to make
// things clear.
conn, connErr = ccreds.Dial(opts.Dialer, addr, opts.Timeout)
if timeout > 0 {
timeout = opts.Timeout - time.Since(startT)
}
conn, connErr = ccreds.Handshake(addr, conn, timeout)
break
}
}
if scheme == "http" {
conn, connErr = opts.Dialer(addr, opts.Timeout)
}
if connErr != nil {
return nil, ConnectionErrorf("transport: %v", connErr)
}