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|
package main
import (
"crypto/tls"
"fmt"
"net"
"net/http"
"os"
"time"
"github.com/gorilla/context"
proxyproto "github.com/pires/go-proxyproto"
"golang.org/x/net/http2"
"gitlab.com/gitlab-org/gitlab-pages/internal/netutil"
)
type keepAliveListener struct {
net.Listener
}
type keepAliveSetter interface {
SetKeepAlive(bool) error
SetKeepAlivePeriod(time.Duration) error
}
type listenerConfig struct {
fd uintptr
isProxyV2 bool
tlsConfig *tls.Config
limiter *netutil.Limiter
handler http.Handler
}
func (ln *keepAliveListener) Accept() (net.Conn, error) {
conn, err := ln.Listener.Accept()
if err != nil {
return nil, err
}
kc := conn.(keepAliveSetter)
kc.SetKeepAlive(true)
kc.SetKeepAlivePeriod(3 * time.Minute)
return conn, nil
}
func (a *theApp) listenAndServe(config listenerConfig) error {
// create server
server := &http.Server{Handler: context.ClearHandler(config.handler), TLSConfig: config.tlsConfig}
if a.config.General.HTTP2 {
err := http2.ConfigureServer(server, &http2.Server{})
if err != nil {
return err
}
}
l, err := net.FileListener(os.NewFile(config.fd, "[socket]"))
if err != nil {
return fmt.Errorf("failed to listen on FD %d: %v", config.fd, err)
}
if config.limiter != nil {
l = netutil.SharedLimitListener(l, config.limiter)
}
l = &keepAliveListener{l}
if config.isProxyV2 {
l = &proxyproto.Listener{
Listener: l,
Policy: func(upstream net.Addr) (proxyproto.Policy, error) {
return proxyproto.REQUIRE, nil
},
}
}
if config.tlsConfig != nil {
l = tls.NewListener(l, server.TLSConfig)
}
return server.Serve(l)
}
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