github.com/mysteriumnetwork/node@v0.0.0-20240516044423-365054f76801/nat/traversal/noop.go (about)

     1  /*
     2   * Copyright (C) 2019 The "MysteriumNetwork/node" Authors.
     3   *
     4   * This program is free software: you can redistribute it and/or modify
     5   * it under the terms of the GNU General Public License as published by
     6   * the Free Software Foundation, either version 3 of the License, or
     7   * (at your option) any later version.
     8   *
     9   * This program is distributed in the hope that it will be useful,
    10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12   * GNU General Public License for more details.
    13   *
    14   * You should have received a copy of the GNU General Public License
    15   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    16   */
    17  
    18  package traversal
    19  
    20  import (
    21  	"context"
    22  	"net"
    23  
    24  	"github.com/mysteriumnetwork/node/eventbus"
    25  	"github.com/mysteriumnetwork/node/nat/event"
    26  )
    27  
    28  // NoopPinger does nothing
    29  type NoopPinger struct {
    30  	eventPublisher eventbus.Publisher
    31  }
    32  
    33  // NewNoopPinger returns noop nat pinger
    34  func NewNoopPinger(publisher eventbus.Publisher) *NoopPinger {
    35  	return &NoopPinger{
    36  		eventPublisher: publisher,
    37  	}
    38  }
    39  
    40  // PingProviderPeer does nothing.
    41  func (np *NoopPinger) PingProviderPeer(ctx context.Context, localIP, remoteIP string, localPorts, remotePorts []int, initialTTL int, n int) (conns []*net.UDPConn, err error) {
    42  	return []*net.UDPConn{}, nil
    43  }
    44  
    45  // PingConsumerPeer does nothing.
    46  func (np *NoopPinger) PingConsumerPeer(ctx context.Context, id, ip string, localPorts, remotePorts []int, initialTTL int, n int) (conns []*net.UDPConn, err error) {
    47  	np.eventPublisher.Publish(event.AppTopicTraversal, event.BuildSuccessfulEvent(id, "noop_pinger"))
    48  	return []*net.UDPConn{}, nil
    49  }
    50  
    51  // StopNATProxy does nothing
    52  func (np *NoopPinger) StopNATProxy() {}
    53  
    54  // Stop does nothing
    55  func (np *NoopPinger) Stop() {}
    56  
    57  // PingPeer does nothing.
    58  func (np *NoopPinger) PingPeer(ip string, localPorts, remotePorts []int, initialTTL int, n int) (conns []*net.UDPConn, err error) {
    59  	return nil, nil
    60  }