109 lines
3.7 KiB
Go
109 lines
3.7 KiB
Go
// Copyright 2017 Vector Creations Ltd
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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 input contains the code processes new room events
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package input
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import (
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"context"
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"encoding/json"
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"net/http"
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"sync"
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"github.com/Shopify/sarama"
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"github.com/matrix-org/dendrite/common"
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"github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/roomserver/storage"
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"github.com/matrix-org/util"
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fsAPI "github.com/matrix-org/dendrite/federationsender/api"
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)
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// RoomserverInputAPI implements api.RoomserverInputAPI
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type RoomserverInputAPI struct {
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DB storage.Database
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Producer sarama.SyncProducer
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// The kafkaesque topic to output new room events to.
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// This is the name used in kafka to identify the stream to write events to.
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OutputRoomEventTopic string
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// Protects calls to processRoomEvent
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mutex sync.Mutex
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// The federation sender API allows us to send federation
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// requests from the new perform input requests, still TODO.
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fsAPI fsAPI.FederationSenderInternalAPI
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}
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// SetFederationSenderInputAPI passes in a federation sender input API reference
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// so that we can avoid the chicken-and-egg problem of both the roomserver input API
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// and the federation sender input API being interdependent.
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func (r *RoomserverInputAPI) SetFederationSenderAPI(fsAPI fsAPI.FederationSenderInternalAPI) {
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r.fsAPI = fsAPI
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}
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// WriteOutputEvents implements OutputRoomEventWriter
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func (r *RoomserverInputAPI) WriteOutputEvents(roomID string, updates []api.OutputEvent) error {
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messages := make([]*sarama.ProducerMessage, len(updates))
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for i := range updates {
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value, err := json.Marshal(updates[i])
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if err != nil {
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return err
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}
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messages[i] = &sarama.ProducerMessage{
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Topic: r.OutputRoomEventTopic,
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Key: sarama.StringEncoder(roomID),
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Value: sarama.ByteEncoder(value),
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}
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}
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return r.Producer.SendMessages(messages)
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}
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// InputRoomEvents implements api.RoomserverInputAPI
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func (r *RoomserverInputAPI) InputRoomEvents(
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ctx context.Context,
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request *api.InputRoomEventsRequest,
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response *api.InputRoomEventsResponse,
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) (err error) {
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// We lock as processRoomEvent can only be called once at a time
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r.mutex.Lock()
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defer r.mutex.Unlock()
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for i := range request.InputRoomEvents {
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if response.EventID, err = processRoomEvent(ctx, r.DB, r, request.InputRoomEvents[i]); err != nil {
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return err
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}
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}
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for i := range request.InputInviteEvents {
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if err = processInviteEvent(ctx, r.DB, r, request.InputInviteEvents[i]); err != nil {
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return err
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}
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}
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return nil
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}
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// SetupHTTP adds the RoomserverInputAPI handlers to the http.ServeMux.
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func (r *RoomserverInputAPI) SetupHTTP(servMux *http.ServeMux) {
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servMux.Handle(api.RoomserverInputRoomEventsPath,
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common.MakeInternalAPI("inputRoomEvents", func(req *http.Request) util.JSONResponse {
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var request api.InputRoomEventsRequest
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var response api.InputRoomEventsResponse
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if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
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return util.MessageResponse(http.StatusBadRequest, err.Error())
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}
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if err := r.InputRoomEvents(req.Context(), &request, &response); err != nil {
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return util.ErrorResponse(err)
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}
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return util.JSONResponse{Code: http.StatusOK, JSON: &response}
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}),
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)
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}
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