dendrite/cmd/dendrite-i2p/main.go
2023-07-21 10:58:12 -04:00

419 lines
14 KiB
Go

// 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 (
"flag"
"strings"
"time"
"github.com/eyedeekay/goSam"
"github.com/eyedeekay/onramp"
"github.com/getsentry/sentry-go"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/httputil"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/setup/jetstream"
"github.com/matrix-org/dendrite/setup/process"
"github.com/matrix-org/gomatrixserverlib/fclient"
"github.com/prometheus/client_golang/prometheus"
"github.com/sirupsen/logrus"
"bytes"
"context"
"errors"
"html/template"
"io/fs"
"net"
"net/http"
"net/url"
"github.com/matrix-org/dendrite/appservice"
"github.com/matrix-org/dendrite/federationapi"
"github.com/matrix-org/dendrite/roomserver"
"github.com/matrix-org/dendrite/setup"
basepkg "github.com/matrix-org/dendrite/setup/base"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/setup/mscs"
"github.com/matrix-org/dendrite/userapi"
_ "net/http/pprof"
"os"
sentryhttp "github.com/getsentry/sentry-go/http"
"github.com/gorilla/mux"
"github.com/kardianos/minwinsvc"
"github.com/prometheus/client_golang/prometheus/promhttp"
"go.uber.org/atomic"
)
var (
unixSocket = flag.String("unix-socket", "",
"EXPERIMENTAL(unstable): The HTTP listening unix socket for the server (disables http[s]-bind-address feature)",
)
unixSocketPermission = flag.String("unix-socket-permission", "755",
"EXPERIMENTAL(unstable): The HTTP listening unix socket permission for the server (in chmod format like 755)",
)
httpBindAddr = flag.String("http-bind-address", ":8008", "The HTTP listening port for the server")
httpsBindAddr = flag.String("https-bind-address", ":8448", "The HTTPS listening port for the server")
certFile = flag.String("tls-cert", "", "The PEM formatted X509 certificate to use for TLS")
keyFile = flag.String("tls-key", "", "The PEM private key to use for TLS")
)
func main() {
cfg := setup.ParseFlags(true)
httpAddr := config.ServerAddress{}
httpsAddr := config.ServerAddress{}
if *unixSocket == "" {
http, err := config.HTTPAddress("http://" + *httpBindAddr)
if err != nil {
logrus.WithError(err).Fatalf("Failed to parse http address")
}
httpAddr = http
https, err := config.HTTPAddress("https://" + *httpsBindAddr)
if err != nil {
logrus.WithError(err).Fatalf("Failed to parse https address")
}
httpsAddr = https
} else {
socket, err := config.UnixSocketAddress(*unixSocket, *unixSocketPermission)
if err != nil {
logrus.WithError(err).Fatalf("Failed to parse unix socket")
}
httpAddr = socket
}
configErrors := &config.ConfigErrors{}
cfg.Verify(configErrors)
if len(*configErrors) > 0 {
for _, err := range *configErrors {
logrus.Errorf("Configuration error: %s", err)
}
logrus.Fatalf("Failed to start due to configuration errors")
}
processCtx := process.NewProcessContext()
internal.SetupStdLogging()
internal.SetupHookLogging(cfg.Logging)
internal.SetupPprof()
basepkg.PlatformSanityChecks()
logrus.Infof("Dendrite version %s", internal.VersionString())
if !cfg.ClientAPI.RegistrationDisabled && cfg.ClientAPI.OpenRegistrationWithoutVerificationEnabled {
logrus.Warn("Open registration is enabled")
}
// create DNS cache
var dnsCache *fclient.DNSCache
if cfg.Global.DNSCache.Enabled {
dnsCache = fclient.NewDNSCache(
cfg.Global.DNSCache.CacheSize,
cfg.Global.DNSCache.CacheLifetime,
)
logrus.Infof(
"DNS cache enabled (size %d, lifetime %s)",
cfg.Global.DNSCache.CacheSize,
cfg.Global.DNSCache.CacheLifetime,
)
}
// setup tracing
closer, err := cfg.SetupTracing()
if err != nil {
logrus.WithError(err).Panicf("failed to start opentracing")
}
defer closer.Close() // nolint: errcheck
// setup sentry
if cfg.Global.Sentry.Enabled {
logrus.Info("Setting up Sentry for debugging...")
err = sentry.Init(sentry.ClientOptions{
Dsn: cfg.Global.Sentry.DSN,
Environment: cfg.Global.Sentry.Environment,
Debug: true,
ServerName: string(cfg.Global.ServerName),
Release: "dendrite@" + internal.VersionString(),
AttachStacktrace: true,
})
if err != nil {
logrus.WithError(err).Panic("failed to start Sentry")
}
go func() {
processCtx.ComponentStarted()
<-processCtx.WaitForShutdown()
if !sentry.Flush(time.Second * 5) {
logrus.Warnf("failed to flush all Sentry events!")
}
processCtx.ComponentFinished()
}()
}
federationClient := basepkg.CreateFederationClient(cfg, dnsCache)
httpClient := basepkg.CreateClient(cfg, dnsCache)
// prepare required dependencies
cm := sqlutil.NewConnectionManager(processCtx, cfg.Global.DatabaseOptions)
routers := httputil.NewRouters()
caches := caching.NewRistrettoCache(cfg.Global.Cache.EstimatedMaxSize, cfg.Global.Cache.MaxAge, caching.EnableMetrics)
natsInstance := jetstream.NATSInstance{}
rsAPI := roomserver.NewInternalAPI(processCtx, cfg, cm, &natsInstance, caches, caching.EnableMetrics)
fsAPI := federationapi.NewInternalAPI(
processCtx, cfg, cm, &natsInstance, federationClient, rsAPI, caches, nil, false,
)
keyRing := fsAPI.KeyRing()
userAPI := userapi.NewInternalAPI(processCtx, cfg, cm, &natsInstance, rsAPI, federationClient)
asAPI := appservice.NewInternalAPI(processCtx, cfg, &natsInstance, userAPI, rsAPI)
// The underlying roomserver implementation needs to be able to call the fedsender.
// This is different to rsAPI which can be the http client which doesn't need this
// dependency. Other components also need updating after their dependencies are up.
rsAPI.SetFederationAPI(fsAPI, keyRing)
rsAPI.SetAppserviceAPI(asAPI)
rsAPI.SetUserAPI(userAPI)
monolith := setup.Monolith{
Config: cfg,
Client: httpClient,
FedClient: federationClient,
KeyRing: keyRing,
AppserviceAPI: asAPI,
// always use the concrete impl here even in -http mode because adding public routes
// must be done on the concrete impl not an HTTP client else fedapi will call itself
FederationAPI: fsAPI,
RoomserverAPI: rsAPI,
UserAPI: userAPI,
}
monolith.AddAllPublicRoutes(processCtx, cfg, routers, cm, &natsInstance, caches, caching.EnableMetrics)
if len(cfg.MSCs.MSCs) > 0 {
if err := mscs.Enable(cfg, cm, routers, &monolith, caches); err != nil {
logrus.WithError(err).Fatalf("Failed to enable MSCs")
}
}
upCounter := prometheus.NewCounter(prometheus.CounterOpts{
Namespace: "dendrite",
Name: "up",
ConstLabels: map[string]string{
"version": internal.VersionString(),
},
})
upCounter.Add(1)
prometheus.MustRegister(upCounter)
// Expose the matrix APIs directly rather than putting them under a /api path.
go func() {
SetupAndServeHTTP(processCtx, cfg, routers, httpAddr, nil, nil)
}()
// Handle HTTPS if certificate and key are provided
if *unixSocket == "" && *certFile != "" && *keyFile != "" {
go func() {
SetupAndServeHTTP(processCtx, cfg, routers, httpsAddr, certFile, keyFile)
}()
}
// We want to block forever to let the HTTP and HTTPS handler serve the APIs
basepkg.WaitForShutdown(processCtx)
}
var sam, err = goSam.NewDefaultClient()
func Dial(network, addr string) (net.Conn, error) {
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
}
if strings.HasSuffix(url.Host, ".i2p") {
return sam.Dial(network, addr)
}
ip := net.ParseIP(url.Host)
if ip != nil {
if ip.IsLoopback() {
return net.Dial(network, addr)
}
}
return net.Dial(network, addr)
}
// SetupAndServeHTTP sets up the HTTP server to serve client & federation APIs
// and adds a prometheus handler under /_dendrite/metrics.
func SetupAndServeHTTP(
processContext *process.ProcessContext,
cfg *config.Dendrite,
routers httputil.Routers,
externalHTTPAddr config.ServerAddress,
certFile, keyFile *string,
) {
// create a transport that uses SAM to dial TCP Connections
httpClient := &http.Client{
Transport: &http.Transport{
Dial: Dial,
},
}
http.DefaultClient = httpClient
externalRouter := mux.NewRouter().SkipClean(true).UseEncodedPath()
externalServ := &http.Server{
Addr: externalHTTPAddr.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(basepkg.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 externalHTTPAddr.Enabled() {
go func() {
var externalShutdown atomic.Bool // RegisterOnShutdown can be called more than once
logrus.Infof("Starting external listener on %s", externalServ.Addr)
processContext.ComponentStarted()
externalServ.RegisterOnShutdown(func() {
if externalShutdown.CompareAndSwap(false, true) {
processContext.ComponentFinished()
logrus.Infof("Stopped external HTTP listener")
}
})
if certFile != nil && keyFile != nil {
garlictls, err := onramp.NewGarlic("dendrite-tls", "127.0.0.1:7656", onramp.OPT_DEFAULTS)
if err != nil {
logrus.WithError(err).Fatal("failed to create garlic")
}
listenertls, err := garlictls.Listen()
if err != nil {
logrus.WithError(err).Fatal("failed to serve HTTP")
}
addr := listenertls.Addr()
externalServ.Addr = addr.String()
if err := externalServ.ServeTLS(listenertls, *certFile, *keyFile); err != nil {
if err != http.ErrServerClosed {
logrus.WithError(err).Fatal("failed to serve HTTPS")
}
}
} else {
if externalHTTPAddr.IsUnixSocket() {
err := os.Remove(externalHTTPAddr.Address)
if err != nil && !errors.Is(err, fs.ErrNotExist) {
logrus.WithError(err).Fatal("failed to remove existing unix socket")
}
listener, err := net.Listen(externalHTTPAddr.Network(), externalHTTPAddr.Address)
if err != nil {
logrus.WithError(err).Fatal("failed to serve unix socket")
}
err = os.Chmod(externalHTTPAddr.Address, externalHTTPAddr.UnixSocketPermission)
if err != nil {
logrus.WithError(err).Fatal("failed to set unix socket permissions")
}
if err := externalServ.Serve(listener); err != nil {
if err != http.ErrServerClosed {
logrus.WithError(err).Fatal("failed to serve unix socket")
}
}
} else {
garlic, err := onramp.NewGarlic("dendrite", "127.0.0.1:7656", onramp.OPT_DEFAULTS)
if err != nil {
logrus.WithError(err).Fatal("failed to create garlic")
}
listener, err := garlic.Listen()
if err != nil {
logrus.WithError(err).Fatal("failed to serve HTTP")
}
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 HTTP")
}
}
}
}
logrus.Infof("Stopped external listener on %s", externalServ.Addr)
}()
}
minwinsvc.SetOnExit(processContext.ShutdownDendrite)
<-processContext.WaitForShutdown()
logrus.Infof("Stopping HTTP listeners")
_ = externalServ.Shutdown(context.Background())
logrus.Infof("Stopped HTTP listeners")
}