public async Task PropagateChange(EmergencyObjectMessage data)
{
var access = data.header.Access;
var owner = data.header.createdBy;
Parallel.ForEach(activeWebsockets, async(ws) =>
{
if (ws.ws.State == WebSocketState.Open)
{
if (ws.endpoint.uid == owner)
{
/* Owner will receive all data regardless of access control list */
var sendObject = data.Copy <EmergencyObjectMessage>();
await sendObjectToWebsocket(ws.ws, sendObject);
}
else
{
/* Get allowed Paths for this user and reduce object to allowed paths */
var paths = objectService.GetAccessPaths(Models.AccessLevelEnum.Read, data, ws.endpoint);
if (paths != null && paths.Count > 0)
{
var sendObject = data.Copy <EmergencyObjectMessage>();
sendObject.data = objectService.RemoveUnallowedPaths <object>(paths, sendObject.data, data.partPath);
await sendObjectToWebsocket(ws.ws, sendObject);
}
}
}
});
}
private void removeHeadersNotToBeSent(EmergencyObjectMessage sendObject)
{
sendObject.header.created = null;
sendObject.header.createdBy = null;
sendObject.header.lastUpdated = null;
sendObject.header.lastUpdatedBy = null;
sendObject.header.Access = null;
}
private async Task sendObjectToWebsocket(WebSocket ws, EmergencyObjectMessage sendObject)
{
removeHeadersNotToBeSent(sendObject);
var jsonData = JsonConvert.SerializeObject(sendObject);
var jsonDataBinary = Encoding.UTF8.GetBytes(jsonData);
await ws.SendAsync(new ArraySegment <byte>(jsonDataBinary), WebSocketMessageType.Text, true, CancellationToken.None);
}
public void ObjectChanged(Guid uid, MessageSentTrigger trigger, EmergencyObject edxo, object subData, string subPath = null)
{
var eventMsg = new EmergencyObjectMessage()
{
uid = uid,
header = edxo.header,
messageTrigger = trigger,
};
if (subPath != null)
{
eventMsg.isParted = true;
eventMsg.partPath = subPath;
eventMsg.data = subData;
}
else
{
eventMsg.isParted = false;
eventMsg.data = edxo.data;
}
ws.PropagateChange(eventMsg);
}
