102 lines
3 KiB
Go
102 lines
3 KiB
Go
// 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
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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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"time"
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"github.com/matrix-org/dendrite/common"
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"github.com/matrix-org/dendrite/typingserver/api"
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"github.com/matrix-org/dendrite/typingserver/cache"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"gopkg.in/Shopify/sarama.v1"
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)
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// TypingServerInputAPI implements api.TypingServerInputAPI
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type TypingServerInputAPI struct {
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// Cache to store the current typing members in each room.
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Cache *cache.TypingCache
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// The kafka topic to output new typing events to.
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OutputTypingEventTopic string
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// kafka producer
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Producer sarama.SyncProducer
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}
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// InputTypingEvent implements api.TypingServerInputAPI
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func (t *TypingServerInputAPI) InputTypingEvent(
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ctx context.Context,
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request *api.InputTypingEventRequest,
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response *api.InputTypingEventResponse,
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) error {
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ite := &request.InputTypingEvent
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if ite.Typing {
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// user is typing, update our current state of users typing.
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expireTime := ite.OriginServerTS.Time().Add(
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time.Duration(ite.Timeout) * time.Millisecond,
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)
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t.Cache.AddTypingUser(ite.UserID, ite.RoomID, &expireTime)
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} else {
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t.Cache.RemoveUser(ite.UserID, ite.RoomID)
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}
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return t.sendEvent(ite)
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}
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func (t *TypingServerInputAPI) sendEvent(ite *api.InputTypingEvent) error {
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userIDs := t.Cache.GetTypingUsers(ite.RoomID)
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ev := &api.TypingEvent{
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Type: gomatrixserverlib.MTyping,
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RoomID: ite.RoomID,
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UserID: ite.UserID,
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}
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ote := &api.OutputTypingEvent{
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Event: *ev,
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TypingUsers: userIDs,
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}
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eventJSON, err := json.Marshal(ote)
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if err != nil {
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return err
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}
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m := &sarama.ProducerMessage{
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Topic: string(t.OutputTypingEventTopic),
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Key: sarama.StringEncoder(ite.RoomID),
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Value: sarama.ByteEncoder(eventJSON),
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}
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_, _, err = t.Producer.SendMessage(m)
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return err
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}
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// SetupHTTP adds the TypingServerInputAPI handlers to the http.ServeMux.
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func (t *TypingServerInputAPI) SetupHTTP(servMux *http.ServeMux) {
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servMux.Handle(api.TypingServerInputTypingEventPath,
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common.MakeInternalAPI("inputTypingEvents", func(req *http.Request) util.JSONResponse {
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var request api.InputTypingEventRequest
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var response api.InputTypingEventResponse
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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 := t.InputTypingEvent(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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