2 tofuproxy -- flexible HTTP/WARC proxy with TLS certificates management
3 Copyright (C) 2021 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 3 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 type SingleConn struct {
32 func (conn *SingleConn) Read(b []byte) (int, error) { return conn.conn.Read(b) }
34 func (conn *SingleConn) Write(b []byte) (int, error) { return conn.conn.Write(b) }
36 func (conn *SingleConn) Close() error {
37 conn.once.Do(conn.ln.Unlock)
38 return conn.conn.Close()
41 func (conn *SingleConn) LocalAddr() net.Addr { return conn.conn.LocalAddr() }
43 func (conn *SingleConn) RemoteAddr() net.Addr { return conn.conn.RemoteAddr() }
45 func (conn *SingleConn) SetDeadline(t time.Time) error { return conn.conn.SetDeadline(t) }
47 func (conn *SingleConn) SetReadDeadline(t time.Time) error { return conn.conn.SetReadDeadline(t) }
49 func (conn *SingleConn) SetWriteDeadline(t time.Time) error { return conn.conn.SetWriteDeadline(t) }
51 type AlreadyAccepted struct{}
53 func (err AlreadyAccepted) Error() string { return "already accepted" }
55 type SingleListener struct {
61 func (ln *SingleListener) Accept() (net.Conn, error) {
64 return nil, AlreadyAccepted{}
67 return &SingleConn{conn: ln.conn, ln: ln}, nil
70 func (ln *SingleListener) Close() error { return nil }
72 func (ln *SingleListener) Addr() net.Addr { return ln.conn.LocalAddr() }