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// Copyright 2018 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 appservice
import (
"context"
"sync"
"github.com/matrix-org/dendrite/setup/jetstream"
"github.com/matrix-org/dendrite/setup/process"
"github.com/matrix-org/gomatrixserverlib/spec"
"github.com/sirupsen/logrus"
appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
"github.com/matrix-org/dendrite/appservice/consumers"
"github.com/matrix-org/dendrite/appservice/query"
roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/setup/config"
userapi "github.com/matrix-org/dendrite/userapi/api"
)
// NewInternalAPI returns a concerete implementation of the internal API. Callers
// can call functions directly on the returned API or via an HTTP interface using AddInternalRoutes.
func NewInternalAPI(
processContext *process.ProcessContext,
cfg *config.Dendrite,
natsInstance *jetstream.NATSInstance,
userAPI userapi.AppserviceUserAPI,
rsAPI roomserverAPI.RoomserverInternalAPI,
) appserviceAPI.AppServiceInternalAPI {
// Create appserivce query API with an HTTP client that will be used for all
// outbound and inbound requests (inbound only for the internal API)
appserviceQueryAPI := &query.AppServiceQueryAPI{
Cfg: &cfg.AppServiceAPI,
ProtocolCache: map[string]appserviceAPI.ASProtocolResponse{},
CacheMu: sync.Mutex{},
}
if len(cfg.Derived.ApplicationServices) == 0 {
return appserviceQueryAPI
}
// Wrap application services in a type that relates the application service and
// a sync.Cond object that can be used to notify workers when there are new
// events to be sent out.
for _, appservice := range cfg.Derived.ApplicationServices {
// Create bot account for this AS if it doesn't already exist
if err := generateAppServiceAccount(userAPI, appservice, cfg.Global.ServerName); err != nil {
logrus.WithFields(logrus.Fields{
"appservice": appservice.ID,
}).WithError(err).Panicf("failed to generate bot account for appservice")
}
}
// Only consume if we actually have ASes to track, else we'll just chew cycles needlessly.
// We can't add ASes at runtime so this is safe to do.
js, _ := natsInstance.Prepare(processContext, &cfg.Global.JetStream)
consumer := consumers.NewOutputRoomEventConsumer(
processContext, &cfg.AppServiceAPI,
js, rsAPI,
)
if err := consumer.Start(); err != nil {
logrus.WithError(err).Panicf("failed to start appservice roomserver consumer")
}
return appserviceQueryAPI
}
// generateAppServiceAccounts creates a dummy account based off the
// `sender_localpart` field of each application service if it doesn't
// exist already
func generateAppServiceAccount(
userAPI userapi.AppserviceUserAPI,
as config.ApplicationService,
serverName spec.ServerName,
) error {
var accRes userapi.PerformAccountCreationResponse
err := userAPI.PerformAccountCreation(context.Background(), &userapi.PerformAccountCreationRequest{
AccountType: userapi.AccountTypeAppService,
Localpart: as.SenderLocalpart,
ServerName: serverName,
AppServiceID: as.ID,
OnConflict: userapi.ConflictUpdate,
}, &accRes)
if err != nil {
return err
}
var devRes userapi.PerformDeviceCreationResponse
err = userAPI.PerformDeviceCreation(context.Background(), &userapi.PerformDeviceCreationRequest{
Localpart: as.SenderLocalpart,
ServerName: serverName,
AccessToken: as.ASToken,
DeviceID: &as.SenderLocalpart,
DeviceDisplayName: &as.SenderLocalpart,
NoDeviceListUpdate: true,
}, &devRes)
return err
}
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