91 lines
2.2 KiB
Go
91 lines
2.2 KiB
Go
package server
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import (
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"context"
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"crypto/tls"
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"errors"
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"fmt"
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"net"
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"net/http"
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"sync"
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"github.com/quic-go/quic-go/http3"
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"github.com/rs/zerolog/log"
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"github.com/traefik/traefik/v3/pkg/config/static"
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tcprouter "github.com/traefik/traefik/v3/pkg/server/router/tcp"
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)
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type http3server struct {
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*http3.Server
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http3conn net.PacketConn
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lock sync.RWMutex
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getter func(info *tls.ClientHelloInfo) (*tls.Config, error)
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}
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func newHTTP3Server(ctx context.Context, configuration *static.EntryPoint, httpsServer *httpServer) (*http3server, error) {
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if configuration.HTTP3 == nil {
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return nil, nil
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}
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if configuration.HTTP3.AdvertisedPort < 0 {
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return nil, errors.New("advertised port must be greater than or equal to zero")
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}
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listenConfig := newListenConfig(configuration)
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conn, err := listenConfig.ListenPacket(ctx, "udp", configuration.GetAddress())
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if err != nil {
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return nil, fmt.Errorf("starting listener: %w", err)
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}
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h3 := &http3server{
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http3conn: conn,
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getter: func(info *tls.ClientHelloInfo) (*tls.Config, error) {
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return nil, errors.New("no tls config")
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},
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}
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h3.Server = &http3.Server{
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Addr: configuration.GetAddress(),
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Port: configuration.HTTP3.AdvertisedPort,
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Handler: httpsServer.Server.(*http.Server).Handler,
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TLSConfig: &tls.Config{GetConfigForClient: h3.getGetConfigForClient},
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}
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previousHandler := httpsServer.Server.(*http.Server).Handler
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httpsServer.Server.(*http.Server).Handler = http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
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if err := h3.Server.SetQuicHeaders(rw.Header()); err != nil {
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log.Ctx(ctx).Error().Err(err).Msg("Failed to set HTTP3 headers")
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}
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previousHandler.ServeHTTP(rw, req)
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})
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return h3, nil
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}
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func (e *http3server) Start() error {
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return e.Serve(e.http3conn)
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}
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func (e *http3server) Switch(rt *tcprouter.Router) {
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e.lock.Lock()
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defer e.lock.Unlock()
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e.getter = rt.GetTLSGetClientInfo()
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}
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func (e *http3server) getGetConfigForClient(info *tls.ClientHelloInfo) (*tls.Config, error) {
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e.lock.RLock()
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defer e.lock.RUnlock()
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return e.getter(info)
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}
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func (e *http3server) Shutdown(_ context.Context) error {
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// TODO: use e.Server.CloseGracefully() when available.
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return e.Server.Close()
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}
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