public async Task Check(IRelayServerConnection connection)
{
if (connection == null)
{
throw new ArgumentNullException(nameof(connection));
}
var logger = _logger?
.ForContext("RelayServerUri", connection.Uri)
.ForContext("RelayServerConnectionInstanceId", connection.RelayServerConnectionInstanceId);
if ((connection.TokenExpiry - connection.TokenRefreshWindow) <= DateTime.UtcNow)
{
logger?.Information("Access token is going to expire soon. Trying to refresh token for RelayServer {RelayServerUri} with connection instance id {RelayServerConnectionInstanceId}");
try
{
if (!await connection.TryRequestAuthorizationTokenAsync().ConfigureAwait(false))
{
throw new AuthenticationException();
}
}
catch (AuthenticationException)
{
logger?.Warning("Could not renew access token and trying a hard reconnect. relay-server={RelayServerUri}, relay-server-connection-instance-id={RelayServerConnectionInstanceId}");
connection.Reconnect();
}
}
}
public void Check(IRelayServerConnection connection)
{
if (connection == null)
{
throw new ArgumentNullException(nameof(connection));
}
var logger = _logger?
.ForContext("RelayServerUri", connection.Uri)
.ForContext("RelayServerConnectionInstanceId", connection.RelayServerConnectionInstanceId);
var lastHeartbeat = connection.LastHeartbeat;
if (lastHeartbeat != DateTime.MinValue && lastHeartbeat != DateTime.MaxValue)
{
if (lastHeartbeat <= DateTime.UtcNow.Subtract(connection.HeartbeatInterval.Add(TimeSpan.FromSeconds(2))))
{
logger?.Warning("Did not receive expected heartbeat. last-heartbeat={LastHeartbeat}, heartbeat-interval={HeartbeatInterval}, relay-server={RelayServerUri}, relay-server-connection-instance-id={RelayServerConnectionInstanceId}", lastHeartbeat, connection.HeartbeatInterval);
connection.Reconnect();
}
}
}