Expand Plugin and REST APIs to trigger user typing event (#14331)

api4/user.go

@@ -80,6 +80,8 @@ func (api *API) InitUser() {
 	api.BaseRoutes.Users.Handle("/tokens/revoke", api.ApiSessionRequired(revokeUserAccessToken)).Methods("POST")
 	api.BaseRoutes.Users.Handle("/tokens/disable", api.ApiSessionRequired(disableUserAccessToken)).Methods("POST")
 	api.BaseRoutes.Users.Handle("/tokens/enable", api.ApiSessionRequired(enableUserAccessToken)).Methods("POST")
+
+	api.BaseRoutes.User.Handle("/typing", api.ApiSessionRequiredDisableWhenBusy(publishUserTyping)).Methods("POST")
 }
 
 func createUser(c *Context, w http.ResponseWriter, r *http.Request) {
@@ -2270,3 +2272,33 @@ func demoteUserToGuest(c *Context, w http.ResponseWriter, r *http.Request) {
 	auditRec.Success()
 	ReturnStatusOK(w)
 }
+
+func publishUserTyping(c *Context, w http.ResponseWriter, r *http.Request) {
+	c.RequireUserId()
+	if c.Err != nil {
+		return
+	}
+
+	typingRequest := model.TypingRequestFromJson(r.Body)
+	if typingRequest == nil {
+		c.SetInvalidParam("typing_request")
+		return
+	}
+
+	if c.Params.UserId != c.App.Session().UserId && !c.App.SessionHasPermissionTo(*c.App.Session(), model.PERMISSION_MANAGE_SYSTEM) {
+		c.SetPermissionError(model.PERMISSION_MANAGE_SYSTEM)
+		return
+	}
+
+	if !c.App.HasPermissionToChannel(c.Params.UserId, typingRequest.ChannelId, model.PERMISSION_CREATE_POST) {
+		c.SetPermissionError(model.PERMISSION_CREATE_POST)
+		return
+	}
+
+	if err := c.App.PublishUserTyping(c.Params.UserId, typingRequest.ChannelId, typingRequest.ParentId); err != nil {
+		c.Err = err
+		return
+	}
+
+	ReturnStatusOK(w)
+}