k3s/pkg/dqlite/pipe/http.go
2019-11-10 03:49:56 +00:00

57 lines
1.2 KiB
Go

package pipe
import (
"bufio"
"context"
"crypto/tls"
"fmt"
"net"
"net/http"
"github.com/pkg/errors"
)
func ToHTTP(ctx context.Context, url string, tlsConfig *tls.Config) (net.Conn, error) {
request, err := http.NewRequest(http.MethodPost, url, nil)
if err != nil {
return nil, err
}
request = request.WithContext(ctx)
netDial := &net.Dialer{}
if deadline, ok := ctx.Deadline(); ok {
netDial.Deadline = deadline
}
conn, err := tls.DialWithDialer(netDial, "tcp", request.URL.Host, tlsConfig)
if err != nil {
return nil, errors.Wrap(err, "tls dial")
}
err = request.Write(conn)
if err != nil {
return nil, errors.Wrap(err, "request write")
}
response, err := http.ReadResponse(bufio.NewReader(conn), request)
if err != nil {
return nil, errors.Wrap(err, "read request")
}
if response.StatusCode != http.StatusSwitchingProtocols {
return nil, fmt.Errorf("expected 101 response, got: %d", response.StatusCode)
}
listener, err := net.Listen("unix", "")
if err != nil {
return nil, errors.Wrap(err, "Failed to create unix listener")
}
defer listener.Close()
if err := Unix(conn, listener.Addr().String()); err != nil {
return nil, err
}
return listener.Accept()
}