1 files changed, 83 insertions, 0 deletions
diff --git a/eduserver/api/input.go b/eduserver/api/input.go
new file mode 100644
index 00000000..c95acaf1
--- /dev/null
+++ b/eduserver/api/input.go
@@ -0,0 +1,83 @@
+// 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 api provides the types that are used to communicate with the typing server.
+package api
+
+import (
+	"context"
+	"net/http"
+
+	commonHTTP "github.com/matrix-org/dendrite/common/http"
+	"github.com/matrix-org/gomatrixserverlib"
+	opentracing "github.com/opentracing/opentracing-go"
+)
+
+// InputTypingEvent is an event for notifying the typing server about typing updates.
+type InputTypingEvent struct {
+	// UserID of the user to update typing status.
+	UserID string `json:"user_id"`
+	// RoomID of the room the user is typing (or has stopped).
+	RoomID string `json:"room_id"`
+	// Typing is true if the user is typing, false if they have stopped.
+	Typing bool `json:"typing"`
+	// Timeout is the interval for which the user should be marked as typing.
+	Timeout int64 `json:"timeout"`
+	// OriginServerTS when the server received the update.
+	OriginServerTS gomatrixserverlib.Timestamp `json:"origin_server_ts"`
+}
+
+// InputTypingEventRequest is a request to EDUServerInputAPI
+type InputTypingEventRequest struct {
+	InputTypingEvent InputTypingEvent `json:"input_typing_event"`
+}
+
+// InputTypingEventResponse is a response to InputTypingEvents
+type InputTypingEventResponse struct{}
+
+// EDUServerInputAPI is used to write events to the typing server.
+type EDUServerInputAPI interface {
+	InputTypingEvent(
+		ctx context.Context,
+		request *InputTypingEventRequest,
+		response *InputTypingEventResponse,
+	) error
+}
+
+// EDUServerInputTypingEventPath is the HTTP path for the InputTypingEvent API.
+const EDUServerInputTypingEventPath = "/api/eduserver/input"
+
+// NewEDUServerInputAPIHTTP creates a EDUServerInputAPI implemented by talking to a HTTP POST API.
+func NewEDUServerInputAPIHTTP(eduServerURL string, httpClient *http.Client) EDUServerInputAPI {
+	if httpClient == nil {
+		httpClient = http.DefaultClient
+	}
+	return &httpEDUServerInputAPI{eduServerURL, httpClient}
+}
+
+type httpEDUServerInputAPI struct {
+	eduServerURL string
+	httpClient   *http.Client
+}
+
+// InputRoomEvents implements EDUServerInputAPI
+func (h *httpEDUServerInputAPI) InputTypingEvent(
+	ctx context.Context,
+	request *InputTypingEventRequest,
+	response *InputTypingEventResponse,
+) error {
+	span, ctx := opentracing.StartSpanFromContext(ctx, "InputTypingEvent")
+	defer span.Finish()
+
+	apiURL := h.eduServerURL + EDUServerInputTypingEventPath
+	return commonHTTP.PostJSON(ctx, span, h.httpClient, apiURL, request, response)
+}