sing-box/cmd/sing-box/cmd_tools_fetch_http3.go

37 lines
948 B
Go

//go:build with_quic
package main
import (
"context"
"crypto/tls"
"net/http"
"github.com/sagernet/quic-go"
"github.com/sagernet/quic-go/http3"
box "github.com/sagernet/sing-box"
"github.com/sagernet/sing/common/bufio"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
)
func initializeHTTP3Client(instance *box.Box) error {
dialer, err := createDialer(instance, commandToolsFlagOutbound)
if err != nil {
return err
}
http3Client = &http.Client{
Transport: &http3.RoundTripper{
Dial: func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (quic.EarlyConnection, error) {
destination := M.ParseSocksaddr(addr)
udpConn, dErr := dialer.DialContext(ctx, N.NetworkUDP, destination)
if dErr != nil {
return nil, dErr
}
return quic.DialEarly(ctx, bufio.NewUnbindPacketConn(udpConn), udpConn.RemoteAddr(), tlsCfg, cfg)
},
},
}
return nil
}