You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
1007 B
Go
56 lines
1007 B
Go
package protolistener
|
|
|
|
import (
|
|
"bufio"
|
|
"net"
|
|
|
|
proxyproto "github.com/pires/go-proxyproto"
|
|
)
|
|
|
|
type protoListener struct {
|
|
net.Listener
|
|
}
|
|
|
|
type protoConn struct {
|
|
net.Conn
|
|
headerDone bool
|
|
r *bufio.Reader
|
|
proxy *proxyproto.Header
|
|
}
|
|
|
|
// New create a wrapped listener
|
|
func New(l net.Listener) net.Listener {
|
|
return &protoListener{l}
|
|
}
|
|
|
|
func (l *protoListener) Accept() (net.Conn, error) {
|
|
c, err := l.Listener.Accept()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &protoConn{Conn: c}, err
|
|
}
|
|
|
|
func (c *protoConn) Read(buf []byte) (int, error) {
|
|
var err error
|
|
if !c.headerDone {
|
|
c.r = bufio.NewReader(c.Conn)
|
|
c.proxy, err = proxyproto.Read(c.r)
|
|
if err != nil && err != proxyproto.ErrNoProxyProtocol {
|
|
return 0, err
|
|
}
|
|
c.headerDone = true
|
|
return c.r.Read(buf)
|
|
}
|
|
return c.r.Read(buf)
|
|
}
|
|
|
|
func (c *protoConn) RemoteAddr() net.Addr {
|
|
if c.proxy == nil {
|
|
return c.Conn.RemoteAddr()
|
|
}
|
|
return &net.TCPAddr{
|
|
IP: c.proxy.SourceAddress,
|
|
Port: int(c.proxy.SourcePort)}
|
|
}
|