86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
// Copyright (C) 2016 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at https://mozilla.org/MPL/2.0/.
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package connections
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import (
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"crypto/tls"
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"net/url"
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"time"
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"github.com/syncthing/syncthing/lib/config"
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"github.com/syncthing/syncthing/lib/dialer"
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"github.com/syncthing/syncthing/lib/protocol"
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)
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const tcpPriority = 10
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func init() {
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factory := &tcpDialerFactory{}
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for _, scheme := range []string{"tcp", "tcp4", "tcp6"} {
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dialers[scheme] = factory
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}
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}
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type tcpDialer struct {
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cfg *config.Wrapper
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tlsCfg *tls.Config
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}
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func (d *tcpDialer) Dial(id protocol.DeviceID, uri *url.URL) (internalConn, error) {
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uri = fixupPort(uri)
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conn, err := dialer.DialTimeout(uri.Scheme, uri.Host, 10*time.Second)
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if err != nil {
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l.Debugln(err)
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return internalConn{}, err
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}
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err = dialer.SetTCPOptions(conn)
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if err != nil {
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l.Infoln(err)
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}
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err = dialer.SetTrafficClass(conn, d.cfg.Options().TrafficClass)
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if err != nil {
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l.Debugf("failed to set traffic class: %s", err)
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}
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tc := tls.Client(conn, d.tlsCfg)
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err = tlsTimedHandshake(tc)
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if err != nil {
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tc.Close()
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return internalConn{}, err
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}
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return internalConn{tc, connTypeTCPClient, tcpPriority}, nil
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}
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func (d *tcpDialer) RedialFrequency() time.Duration {
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return time.Duration(d.cfg.Options().ReconnectIntervalS) * time.Second
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}
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type tcpDialerFactory struct{}
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func (tcpDialerFactory) New(cfg *config.Wrapper, tlsCfg *tls.Config) genericDialer {
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return &tcpDialer{
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cfg: cfg,
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tlsCfg: tlsCfg,
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}
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}
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func (tcpDialerFactory) Priority() int {
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return tcpPriority
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}
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func (tcpDialerFactory) Enabled(cfg config.Configuration) bool {
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return true
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}
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func (tcpDialerFactory) String() string {
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return "TCP Dialer"
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}
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