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// Copyright 2017 Vector Creations Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"bytes"
"context"
"crypto/tls"
"embed"
"net"
"net/http"
"net/url"
"sync/atomic"
"text/template"
"github.com/cretz/bine/tor"
"github.com/eyedeekay/onramp"
sentryhttp "github.com/getsentry/sentry-go/http"
"github.com/gorilla/mux"
"github.com/kardianos/minwinsvc"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/httputil"
"github.com/matrix-org/dendrite/setup/process"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/sirupsen/logrus"
basepkg "github.com/matrix-org/dendrite/setup/base"
"github.com/matrix-org/dendrite/setup/config"
)
func start() (*tor.Tor, error) {
if skip {
return nil, nil
}
return tor.Start(context.Background(), nil)
}
func dialer() (*tor.Dialer, error) {
if skip {
return nil, nil
}
return t.Dialer(context.TODO(), nil)
}
var (
t, terr = start()
tdialer, tderr = dialer()
)
// Dial either a unix socket address, or connect to a remote address over Tor. Always uses Tor.
func DialContext(ctx context.Context, network, addr string) (net.Conn, error) {
if terr != nil {
return nil, terr
}
if (tderr != nil) || (tdialer == nil) {
return nil, tderr
}
if network == "unix" {
return net.Dial(network, addr)
}
// convert the addr to a full URL
url, err := url.Parse(addr)
if err != nil {
return nil, err
}
return tdialer.DialContext(ctx, network, url.Host)
}
//go:embed static/*.gotmpl
var staticContent embed.FS
// SetupAndServeHTTPS sets up the HTTPS server to serve client & federation APIs
// and adds a prometheus handler under /_dendrite/metrics.
func SetupAndServeHTTPS(
processContext *process.ProcessContext,
cfg *config.Dendrite,
routers httputil.Routers,
) {
// create a transport that uses SAM to dial TCP Connections
httpClient := &http.Client{
Transport: &http.Transport{
DialContext: DialContext,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
},
}
http.DefaultClient = httpClient
onion, err := onramp.NewOnion("dendrite-onion")
if err != nil {
logrus.WithError(err).Fatal("failed to create onion")
}
defer onion.Close() // nolint: errcheck
listener, err := onion.ListenTLS()
if err != nil {
logrus.WithError(err).Fatal("failed to serve HTTPS")
}
defer listener.Close() // nolint: errcheck
externalHTTPSAddr := config.ServerAddress{}
https, err := config.HTTPAddress("https://" + listener.Addr().String())
if err != nil {
logrus.WithError(err).Fatalf("Failed to parse http address")
}
externalHTTPSAddr = https
externalRouter := mux.NewRouter().SkipClean(true).UseEncodedPath()
externalServ := &http.Server{
Addr: externalHTTPSAddr.Address,
WriteTimeout: basepkg.HTTPServerTimeout,
Handler: externalRouter,
BaseContext: func(_ net.Listener) context.Context {
return processContext.Context()
},
}
// Redirect for Landing Page
externalRouter.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, httputil.PublicStaticPath, http.StatusFound)
})
if cfg.Global.Metrics.Enabled {
externalRouter.Handle("/metrics", httputil.WrapHandlerInBasicAuth(promhttp.Handler(), cfg.Global.Metrics.BasicAuth))
}
basepkg.ConfigureAdminEndpoints(processContext, routers)
// Parse and execute the landing page template
tmpl := template.Must(template.ParseFS(staticContent, "static/*.gotmpl"))
landingPage := &bytes.Buffer{}
if err := tmpl.ExecuteTemplate(landingPage, "index.gotmpl", map[string]string{
"Version": internal.VersionString(),
}); err != nil {
logrus.WithError(err).Fatal("failed to execute landing page template")
}
routers.Static.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
_, _ = w.Write(landingPage.Bytes())
})
var clientHandler http.Handler
clientHandler = routers.Client
if cfg.Global.Sentry.Enabled {
sentryHandler := sentryhttp.New(sentryhttp.Options{
Repanic: true,
})
clientHandler = sentryHandler.Handle(routers.Client)
}
var federationHandler http.Handler
federationHandler = routers.Federation
if cfg.Global.Sentry.Enabled {
sentryHandler := sentryhttp.New(sentryhttp.Options{
Repanic: true,
})
federationHandler = sentryHandler.Handle(routers.Federation)
}
externalRouter.PathPrefix(httputil.DendriteAdminPathPrefix).Handler(routers.DendriteAdmin)
externalRouter.PathPrefix(httputil.PublicClientPathPrefix).Handler(clientHandler)
if !cfg.Global.DisableFederation {
externalRouter.PathPrefix(httputil.PublicKeyPathPrefix).Handler(routers.Keys)
externalRouter.PathPrefix(httputil.PublicFederationPathPrefix).Handler(federationHandler)
}
externalRouter.PathPrefix(httputil.SynapseAdminPathPrefix).Handler(routers.SynapseAdmin)
externalRouter.PathPrefix(httputil.PublicMediaPathPrefix).Handler(routers.Media)
externalRouter.PathPrefix(httputil.PublicWellKnownPrefix).Handler(routers.WellKnown)
externalRouter.PathPrefix(httputil.PublicStaticPath).Handler(routers.Static)
externalRouter.NotFoundHandler = httputil.NotFoundCORSHandler
externalRouter.MethodNotAllowedHandler = httputil.NotAllowedHandler
if externalHTTPSAddr.Enabled() {
go func() {
var externalShutdown atomic.Bool // RegisterOnShutdown can be called more than once
logrus.Infof("Starting external listener on https://%s", externalServ.Addr)
processContext.ComponentStarted()
externalServ.RegisterOnShutdown(func() {
if externalShutdown.CompareAndSwap(false, true) {
processContext.ComponentFinished()
logrus.Infof("Stopped external HTTPS listener")
}
})
addr := listener.Addr()
externalServ.Addr = addr.String()
if err := externalServ.Serve(listener); err != nil {
if err != http.ErrServerClosed {
logrus.WithError(err).Fatal("failed to serve HTTPS")
}
}
logrus.Infof("Stopped external listener on %s", externalServ.Addr)
}()
}
minwinsvc.SetOnExit(processContext.ShutdownDendrite)
<-processContext.WaitForShutdown()
logrus.Infof("Stopping HTTPS listeners")
_ = externalServ.Shutdown(context.Background())
logrus.Infof("Stopped HTTPS listeners")
}
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