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// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package proxyprotocol
import (
"net"
"time"
)
// Listener is used to wrap an underlying listener,
// whose connections may be using the HAProxy Proxy Protocol (version 1 or 2).
// If the connection is using the protocol, the RemoteAddr() will return
// the correct client address.
//
// Optionally define ProxyHeaderTimeout to set a maximum time to
// receive the Proxy Protocol Header. Zero means no timeout.
type Listener struct {
Listener net.Listener
ProxyHeaderTimeout time.Duration
AcceptUnknown bool // allow PROXY UNKNOWN
}
// Accept implements the Accept method in the Listener interface
// it waits for the next call and returns a wrapped Conn.
func (p *Listener) Accept() (net.Conn, error) {
// Get the underlying connection
conn, err := p.Listener.Accept()
if err != nil {
return nil, err
}
newConn := NewConn(conn, p.ProxyHeaderTimeout)
newConn.acceptUnknown = p.AcceptUnknown
return newConn, nil
}
// Close closes the underlying listener.
func (p *Listener) Close() error {
return p.Listener.Close()
}
// Addr returns the underlying listener's network address.
func (p *Listener) Addr() net.Addr {
return p.Listener.Addr()
}
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