mirror of
https://github.com/1f349/dendrite.git
synced 2024-11-10 06:53:00 +00:00
116 lines
2.8 KiB
Go
116 lines
2.8 KiB
Go
// Copyright 2020 The Matrix.org Foundation C.I.C.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package yggconn
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/libp2p/go-yamux"
|
|
)
|
|
|
|
func (n *Node) yamuxConfig() *yamux.Config {
|
|
cfg := yamux.DefaultConfig()
|
|
cfg.EnableKeepAlive = true
|
|
cfg.KeepAliveInterval = time.Second * 30
|
|
cfg.MaxMessageSize = 65535
|
|
cfg.ReadBufSize = 655350
|
|
return cfg
|
|
}
|
|
|
|
func (n *Node) listenFromYgg() {
|
|
for {
|
|
conn, err := n.listener.Accept()
|
|
if err != nil {
|
|
n.log.Println("n.listener.Accept:", err)
|
|
return
|
|
}
|
|
var session *yamux.Session
|
|
if strings.Compare(conn.RemoteAddr().String(), n.DerivedServerName()) < 0 {
|
|
session, err = yamux.Server(conn, n.yamuxConfig())
|
|
} else {
|
|
session, err = yamux.Client(conn, n.yamuxConfig())
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
go n.listenFromYggConn(session)
|
|
}
|
|
}
|
|
|
|
func (n *Node) listenFromYggConn(session *yamux.Session) {
|
|
n.sessions.Store(session.RemoteAddr().String(), session)
|
|
defer n.sessions.Delete(session.RemoteAddr())
|
|
|
|
for {
|
|
st, err := session.AcceptStream()
|
|
if err != nil {
|
|
n.log.Println("session.AcceptStream:", err)
|
|
return
|
|
}
|
|
n.incoming <- st
|
|
}
|
|
}
|
|
|
|
// Implements net.Listener
|
|
func (n *Node) Accept() (net.Conn, error) {
|
|
return <-n.incoming, nil
|
|
}
|
|
|
|
// Implements net.Listener
|
|
func (n *Node) Close() error {
|
|
return n.listener.Close()
|
|
}
|
|
|
|
// Implements net.Listener
|
|
func (n *Node) Addr() net.Addr {
|
|
return n.listener.Addr()
|
|
}
|
|
|
|
// Implements http.Transport.Dial
|
|
func (n *Node) Dial(network, address string) (net.Conn, error) {
|
|
return n.DialContext(context.TODO(), network, address)
|
|
}
|
|
|
|
// Implements http.Transport.DialContext
|
|
func (n *Node) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
|
|
s, ok1 := n.sessions.Load(address)
|
|
session, ok2 := s.(*yamux.Session)
|
|
if !ok1 || !ok2 {
|
|
conn, err := n.dialer.DialContext(ctx, network, address)
|
|
if err != nil {
|
|
n.log.Println("n.dialer.DialContext:", err)
|
|
return nil, err
|
|
}
|
|
if strings.Compare(address, n.DerivedServerName()) > 0 {
|
|
session, err = yamux.Client(conn, n.yamuxConfig())
|
|
} else {
|
|
session, err = yamux.Server(conn, n.yamuxConfig())
|
|
}
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
go n.listenFromYggConn(session)
|
|
}
|
|
st, err := session.OpenStream()
|
|
if err != nil {
|
|
n.log.Println("session.OpenStream:", err)
|
|
return nil, err
|
|
}
|
|
return st, nil
|
|
}
|