async Task <bool> QueryEndPoint(Uri endpoint, bool querySubNodes)
{
try
{
if (endpoint == LocalNodeInfo.PublicEndPoint)
{
return(false);
}
var client = new NodeClient(endpoint);
var nodeInfoResult = (await client.DownloadNodeInfo());
if (nodeInfoResult.ResultType == DownloadResultTypes.Timeout || nodeInfoResult.ResultType == DownloadResultTypes.NotFound)
{
return(false);
}
var nodeInfo = nodeInfoResult.Data;
if (nodeInfo != null)
{
if (nodeInfo.NetworkKey != NetworkKey)
{
Log.Info($"Queryied node not is invalid {nodeInfo.PublicEndPoint}. Wrong network key.", this);
return(false);
}
{
if (nodeInfo.NodeId == LocalId)
{
return(false);
}
var queryResult = (await client.DownloadKademliaNodes(nodeInfo.NodeKey, LocalId)).Data;
if (queryResult != null)
{
if (nodeInfo.IsPublicEndPoint)
{
AddValidNode(nodeInfo);
}
else
{
Log.Warn($"Node has no public endpoint {endpoint}.", this);
}
if (querySubNodes)
{
foreach (var node in queryResult.Nodes)
{
if (node.IsPublicEndPoint)
{
var c2 = new NodeClient(node.PublicEndPoint);
var ni2 = (await c2.DownloadNodeInfo()).Data;
if (ni2 != null && ni2.NetworkKey == NetworkKey && node.NodeKey == ni2.NodeKey)
{
AddValidNode(ni2);
}
}
}
}
}
}
}
}
catch (Exception ex)
{
Log.IgnoreException(ex, this);
Log.Error($"Node is invalid {endpoint}.", this);
}
return(true);
}