mirror of
https://github.com/matrix-org/dendrite
synced 2024-11-15 22:31:07 +01:00
348 lines
14 KiB
Go
348 lines
14 KiB
Go
// Copyright 2020 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package setup
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import (
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"crypto/tls"
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"fmt"
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"io"
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"net"
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"net/http"
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"net/url"
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"time"
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"github.com/matrix-org/dendrite/internal/caching"
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"github.com/matrix-org/dendrite/internal/httputil"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"golang.org/x/net/http2"
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"golang.org/x/net/http2/h2c"
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"github.com/matrix-org/dendrite/internal"
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"github.com/matrix-org/dendrite/userapi/storage/accounts"
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"github.com/gorilla/mux"
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appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
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asinthttp "github.com/matrix-org/dendrite/appservice/inthttp"
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eduServerAPI "github.com/matrix-org/dendrite/eduserver/api"
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eduinthttp "github.com/matrix-org/dendrite/eduserver/inthttp"
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federationSenderAPI "github.com/matrix-org/dendrite/federationsender/api"
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fsinthttp "github.com/matrix-org/dendrite/federationsender/inthttp"
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"github.com/matrix-org/dendrite/internal/config"
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keyserverAPI "github.com/matrix-org/dendrite/keyserver/api"
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keyinthttp "github.com/matrix-org/dendrite/keyserver/inthttp"
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roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
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rsinthttp "github.com/matrix-org/dendrite/roomserver/inthttp"
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skapi "github.com/matrix-org/dendrite/signingkeyserver/api"
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skinthttp "github.com/matrix-org/dendrite/signingkeyserver/inthttp"
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userapi "github.com/matrix-org/dendrite/userapi/api"
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userapiinthttp "github.com/matrix-org/dendrite/userapi/inthttp"
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"github.com/sirupsen/logrus"
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_ "net/http/pprof"
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)
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// BaseDendrite is a base for creating new instances of dendrite. It parses
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// command line flags and config, and exposes methods for creating various
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// resources. All errors are handled by logging then exiting, so all methods
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// should only be used during start up.
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// Must be closed when shutting down.
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type BaseDendrite struct {
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componentName string
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tracerCloser io.Closer
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PublicClientAPIMux *mux.Router
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PublicFederationAPIMux *mux.Router
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PublicKeyAPIMux *mux.Router
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PublicMediaAPIMux *mux.Router
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InternalAPIMux *mux.Router
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UseHTTPAPIs bool
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apiHttpClient *http.Client
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httpClient *http.Client
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Cfg *config.Dendrite
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Caches *caching.Caches
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// KafkaConsumer sarama.Consumer
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// KafkaProducer sarama.SyncProducer
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}
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const HTTPServerTimeout = time.Minute * 5
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const HTTPClientTimeout = time.Second * 30
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const NoListener = ""
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// NewBaseDendrite creates a new instance to be used by a component.
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// The componentName is used for logging purposes, and should be a friendly name
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// of the compontent running, e.g. "SyncAPI"
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func NewBaseDendrite(cfg *config.Dendrite, componentName string, useHTTPAPIs bool) *BaseDendrite {
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configErrors := &config.ConfigErrors{}
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cfg.Verify(configErrors, componentName == "Monolith") // TODO: better way?
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if len(*configErrors) > 0 {
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for _, err := range *configErrors {
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logrus.Errorf("Configuration error: %s", err)
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}
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logrus.Fatalf("Failed to start due to configuration errors")
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}
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internal.SetupStdLogging()
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internal.SetupHookLogging(cfg.Logging, componentName)
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internal.SetupPprof()
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logrus.Infof("Dendrite version %s", internal.VersionString())
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closer, err := cfg.SetupTracing("Dendrite" + componentName)
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if err != nil {
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logrus.WithError(err).Panicf("failed to start opentracing")
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}
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cache, err := caching.NewInMemoryLRUCache(true)
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if err != nil {
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logrus.WithError(err).Warnf("Failed to create cache")
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}
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apiClient := http.Client{
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Timeout: time.Minute * 10,
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Transport: &http2.Transport{
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AllowHTTP: true,
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DialTLS: func(network, addr string, _ *tls.Config) (net.Conn, error) {
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// Ordinarily HTTP/2 would expect TLS, but the remote listener is
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// H2C-enabled (HTTP/2 without encryption). Overriding the DialTLS
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// function with a plain Dial allows us to trick the HTTP client
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// into establishing a HTTP/2 connection without TLS.
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// TODO: Eventually we will want to look at authenticating and
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// encrypting these internal HTTP APIs, at which point we will have
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// to reconsider H2C and change all this anyway.
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return net.Dial(network, addr)
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},
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},
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}
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client := http.Client{Timeout: HTTPClientTimeout}
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if cfg.FederationSender.Proxy.Enabled {
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client.Transport = &http.Transport{Proxy: http.ProxyURL(&url.URL{
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Scheme: cfg.FederationSender.Proxy.Protocol,
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Host: fmt.Sprintf("%s:%d", cfg.FederationSender.Proxy.Host, cfg.FederationSender.Proxy.Port),
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})}
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}
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// Ideally we would only use SkipClean on routes which we know can allow '/' but due to
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// https://github.com/gorilla/mux/issues/460 we have to attach this at the top router.
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// When used in conjunction with UseEncodedPath() we get the behaviour we want when parsing
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// path parameters:
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// /foo/bar%2Fbaz == [foo, bar%2Fbaz] (from UseEncodedPath)
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// /foo/bar%2F%2Fbaz == [foo, bar%2F%2Fbaz] (from SkipClean)
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// In particular, rooms v3 event IDs are not urlsafe and can include '/' and because they
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// are randomly generated it results in flakey tests.
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// We need to be careful with media APIs if they read from a filesystem to make sure they
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// are not inadvertently reading paths without cleaning, else this could introduce a
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// directory traversal attack e.g /../../../etc/passwd
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return &BaseDendrite{
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componentName: componentName,
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UseHTTPAPIs: useHTTPAPIs,
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tracerCloser: closer,
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Cfg: cfg,
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Caches: cache,
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PublicClientAPIMux: mux.NewRouter().SkipClean(true).PathPrefix(httputil.PublicClientPathPrefix).Subrouter().UseEncodedPath(),
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PublicFederationAPIMux: mux.NewRouter().SkipClean(true).PathPrefix(httputil.PublicFederationPathPrefix).Subrouter().UseEncodedPath(),
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PublicKeyAPIMux: mux.NewRouter().SkipClean(true).PathPrefix(httputil.PublicKeyPathPrefix).Subrouter().UseEncodedPath(),
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PublicMediaAPIMux: mux.NewRouter().SkipClean(true).PathPrefix(httputil.PublicMediaPathPrefix).Subrouter().UseEncodedPath(),
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InternalAPIMux: mux.NewRouter().SkipClean(true).PathPrefix(httputil.InternalPathPrefix).Subrouter().UseEncodedPath(),
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apiHttpClient: &apiClient,
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httpClient: &client,
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}
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}
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// Close implements io.Closer
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func (b *BaseDendrite) Close() error {
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return b.tracerCloser.Close()
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}
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// AppserviceHTTPClient returns the AppServiceQueryAPI for hitting the appservice component over HTTP.
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func (b *BaseDendrite) AppserviceHTTPClient() appserviceAPI.AppServiceQueryAPI {
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a, err := asinthttp.NewAppserviceClient(b.Cfg.AppServiceURL(), b.apiHttpClient)
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if err != nil {
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logrus.WithError(err).Panic("CreateHTTPAppServiceAPIs failed")
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}
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return a
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}
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// RoomserverHTTPClient returns RoomserverInternalAPI for hitting the roomserver over HTTP.
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func (b *BaseDendrite) RoomserverHTTPClient() roomserverAPI.RoomserverInternalAPI {
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rsAPI, err := rsinthttp.NewRoomserverClient(b.Cfg.RoomServerURL(), b.apiHttpClient, b.Caches)
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if err != nil {
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logrus.WithError(err).Panic("RoomserverHTTPClient failed", b.apiHttpClient)
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}
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return rsAPI
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}
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// UserAPIClient returns UserInternalAPI for hitting the userapi over HTTP.
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func (b *BaseDendrite) UserAPIClient() userapi.UserInternalAPI {
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userAPI, err := userapiinthttp.NewUserAPIClient(b.Cfg.UserAPIURL(), b.apiHttpClient)
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if err != nil {
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logrus.WithError(err).Panic("UserAPIClient failed", b.apiHttpClient)
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}
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return userAPI
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}
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// EDUServerClient returns EDUServerInputAPI for hitting the EDU server over HTTP
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func (b *BaseDendrite) EDUServerClient() eduServerAPI.EDUServerInputAPI {
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e, err := eduinthttp.NewEDUServerClient(b.Cfg.EDUServerURL(), b.apiHttpClient)
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if err != nil {
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logrus.WithError(err).Panic("EDUServerClient failed", b.apiHttpClient)
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}
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return e
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}
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// FederationSenderHTTPClient returns FederationSenderInternalAPI for hitting
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// the federation sender over HTTP
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func (b *BaseDendrite) FederationSenderHTTPClient() federationSenderAPI.FederationSenderInternalAPI {
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f, err := fsinthttp.NewFederationSenderClient(b.Cfg.FederationSenderURL(), b.apiHttpClient)
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if err != nil {
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logrus.WithError(err).Panic("FederationSenderHTTPClient failed", b.apiHttpClient)
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}
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return f
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}
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// SigningKeyServerHTTPClient returns SigningKeyServer for hitting the signing key server over HTTP
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func (b *BaseDendrite) SigningKeyServerHTTPClient() skapi.SigningKeyServerAPI {
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f, err := skinthttp.NewSigningKeyServerClient(
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b.Cfg.SigningKeyServerURL(),
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b.apiHttpClient,
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b.Caches,
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)
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if err != nil {
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logrus.WithError(err).Panic("SigningKeyServerHTTPClient failed", b.httpClient)
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}
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return f
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}
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// KeyServerHTTPClient returns KeyInternalAPI for hitting the key server over HTTP
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func (b *BaseDendrite) KeyServerHTTPClient() keyserverAPI.KeyInternalAPI {
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f, err := keyinthttp.NewKeyServerClient(b.Cfg.KeyServerURL(), b.apiHttpClient)
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if err != nil {
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logrus.WithError(err).Panic("KeyServerHTTPClient failed", b.apiHttpClient)
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}
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return f
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}
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// CreateAccountsDB creates a new instance of the accounts database. Should only
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// be called once per component.
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func (b *BaseDendrite) CreateAccountsDB() accounts.Database {
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db, err := accounts.NewDatabase(&b.Cfg.UserAPI.AccountDatabase, b.Cfg.Global.ServerName)
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if err != nil {
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logrus.WithError(err).Panicf("failed to connect to accounts db")
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}
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return db
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}
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// CreateClient creates a new client (normally used for media fetch requests).
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// Should only be called once per component.
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func (b *BaseDendrite) CreateClient() *gomatrixserverlib.Client {
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client := gomatrixserverlib.NewClient(
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b.Cfg.FederationSender.DisableTLSValidation,
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)
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client.SetUserAgent(fmt.Sprintf("Dendrite/%s", internal.VersionString()))
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return client
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}
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// CreateFederationClient creates a new federation client. Should only be called
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// once per component.
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func (b *BaseDendrite) CreateFederationClient() *gomatrixserverlib.FederationClient {
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client := gomatrixserverlib.NewFederationClientWithTimeout(
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b.Cfg.Global.ServerName, b.Cfg.Global.KeyID, b.Cfg.Global.PrivateKey,
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b.Cfg.FederationSender.DisableTLSValidation, time.Minute*5,
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)
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client.SetUserAgent(fmt.Sprintf("Dendrite/%s", internal.VersionString()))
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return client
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}
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// SetupAndServeHTTP sets up the HTTP server to serve endpoints registered on
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// ApiMux under /api/ and adds a prometheus handler under /metrics.
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// nolint:gocyclo
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func (b *BaseDendrite) SetupAndServeHTTP(
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internalHTTPAddr, externalHTTPAddr config.HTTPAddress,
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certFile, keyFile *string,
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) {
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internalAddr, _ := internalHTTPAddr.Address()
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externalAddr, _ := externalHTTPAddr.Address()
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externalRouter := mux.NewRouter().SkipClean(true).UseEncodedPath()
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internalRouter := externalRouter
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externalServ := &http.Server{
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Addr: string(externalAddr),
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WriteTimeout: HTTPServerTimeout,
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Handler: externalRouter,
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}
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internalServ := externalServ
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if internalAddr != NoListener && externalAddr != internalAddr {
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// H2C allows us to accept HTTP/2 connections without TLS
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// encryption. Since we don't currently require any form of
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// authentication or encryption on these internal HTTP APIs,
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// H2C gives us all of the advantages of HTTP/2 (such as
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// stream multiplexing and avoiding head-of-line blocking)
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// without enabling TLS.
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internalH2S := &http2.Server{}
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internalRouter = mux.NewRouter().SkipClean(true).UseEncodedPath()
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internalServ = &http.Server{
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Addr: string(internalAddr),
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Handler: h2c.NewHandler(internalRouter, internalH2S),
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}
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}
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internalRouter.PathPrefix(httputil.InternalPathPrefix).Handler(b.InternalAPIMux)
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if b.Cfg.Global.Metrics.Enabled {
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internalRouter.Handle("/metrics", httputil.WrapHandlerInBasicAuth(promhttp.Handler(), b.Cfg.Global.Metrics.BasicAuth))
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}
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externalRouter.PathPrefix(httputil.PublicClientPathPrefix).Handler(b.PublicClientAPIMux)
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externalRouter.PathPrefix(httputil.PublicKeyPathPrefix).Handler(b.PublicKeyAPIMux)
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externalRouter.PathPrefix(httputil.PublicFederationPathPrefix).Handler(b.PublicFederationAPIMux)
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externalRouter.PathPrefix(httputil.PublicMediaPathPrefix).Handler(b.PublicMediaAPIMux)
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if internalAddr != NoListener && internalAddr != externalAddr {
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go func() {
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logrus.Infof("Starting internal %s listener on %s", b.componentName, internalServ.Addr)
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if certFile != nil && keyFile != nil {
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if err := internalServ.ListenAndServeTLS(*certFile, *keyFile); err != nil {
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logrus.WithError(err).Fatal("failed to serve HTTPS")
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}
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} else {
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if err := internalServ.ListenAndServe(); err != nil {
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logrus.WithError(err).Fatal("failed to serve HTTP")
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}
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}
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logrus.Infof("Stopped internal %s listener on %s", b.componentName, internalServ.Addr)
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}()
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}
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if externalAddr != NoListener {
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go func() {
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logrus.Infof("Starting external %s listener on %s", b.componentName, externalServ.Addr)
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if certFile != nil && keyFile != nil {
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if err := externalServ.ListenAndServeTLS(*certFile, *keyFile); err != nil {
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logrus.WithError(err).Fatal("failed to serve HTTPS")
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}
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} else {
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if err := externalServ.ListenAndServe(); err != nil {
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logrus.WithError(err).Fatal("failed to serve HTTP")
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}
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}
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logrus.Infof("Stopped external %s listener on %s", b.componentName, externalServ.Addr)
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}()
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}
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select {}
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}
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