use go module for dependencies (#594)

clientapi/routing/sendtyping.go

@@ -0,0 +1,80 @@
+// 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 routing
+
+import (
+	"database/sql"
+	"net/http"
+
+	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
+	"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
+	"github.com/matrix-org/dendrite/clientapi/httputil"
+	"github.com/matrix-org/dendrite/clientapi/jsonerror"
+	"github.com/matrix-org/dendrite/clientapi/producers"
+	"github.com/matrix-org/dendrite/clientapi/userutil"
+	"github.com/matrix-org/util"
+)
+
+type typingContentJSON struct {
+	Typing  bool  `json:"typing"`
+	Timeout int64 `json:"timeout"`
+}
+
+// SendTyping handles PUT /rooms/{roomID}/typing/{userID}
+// sends the typing events to client API typingProducer
+func SendTyping(
+	req *http.Request, device *authtypes.Device, roomID string,
+	userID string, accountDB *accounts.Database,
+	typingProducer *producers.TypingServerProducer,
+) util.JSONResponse {
+	if device.UserID != userID {
+		return util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: jsonerror.Forbidden("Cannot set another user's typing state"),
+		}
+	}
+
+	localpart, err := userutil.ParseUsernameParam(userID, nil)
+	if err != nil {
+		return httputil.LogThenError(req, err)
+	}
+
+	// Verify that the user is a member of this room
+	_, err = accountDB.GetMembershipInRoomByLocalpart(req.Context(), localpart, roomID)
+	if err == sql.ErrNoRows {
+		return util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: jsonerror.Forbidden("User not in this room"),
+		}
+	} else if err != nil {
+		return httputil.LogThenError(req, err)
+	}
+
+	// parse the incoming http request
+	var r typingContentJSON
+	resErr := httputil.UnmarshalJSONRequest(req, &r)
+	if resErr != nil {
+		return *resErr
+	}
+
+	if err = typingProducer.Send(
+		req.Context(), userID, roomID, r.Typing, r.Timeout,
+	); err != nil {
+		return httputil.LogThenError(req, err)
+	}
+
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: struct{}{},
+	}
+}