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authentik/internal/web/web_utils.go

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package web
import (
"log"
"net"
"time"
)
// tcpKeepAliveListener sets TCP keep-alive timeouts on accepted
// connections. It's used by ListenAndServe and ListenAndServeTLS so
// dead TCP connections (e.g. closing laptop mid-download) eventually
// go away.
type tcpKeepAliveListener struct {
*net.TCPListener
}
func (ln tcpKeepAliveListener) Accept() (net.Conn, error) {
tc, err := ln.AcceptTCP()
if err != nil {
return nil, err
}
err = tc.SetKeepAlive(true)
if err != nil {
log.Printf("Error setting Keep-Alive: %v", err)
}
err = tc.SetKeepAlivePeriod(3 * time.Minute)
if err != nil {
log.Printf("Error setting Keep-Alive period: %v", err)
}
return tc, nil
}