github.com/braveheart12/just@v0.8.7/network/hostnetwork/transport_consensus.go (about) 1 /* 2 * The Clear BSD License 3 * 4 * Copyright (c) 2019 Insolar Technologies 5 * 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without modification, are permitted (subject to the limitations in the disclaimer below) provided that the following conditions are met: 9 * 10 * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 11 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 12 * Neither the name of Insolar Technologies nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. 13 * 14 * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 15 * 16 */ 17 18 package hostnetwork 19 20 import ( 21 "context" 22 23 "github.com/insolar/insolar/configuration" 24 "github.com/insolar/insolar/consensus" 25 "github.com/insolar/insolar/consensus/packets" 26 "github.com/insolar/insolar/core" 27 "github.com/insolar/insolar/log" 28 "github.com/insolar/insolar/network" 29 "github.com/insolar/insolar/network/sequence" 30 "github.com/insolar/insolar/network/transport" 31 "github.com/insolar/insolar/network/transport/host" 32 "github.com/insolar/insolar/network/transport/packet" 33 "github.com/insolar/insolar/network/transport/relay" 34 "github.com/pkg/errors" 35 "go.opencensus.io/stats" 36 "go.opencensus.io/tag" 37 ) 38 39 type transportConsensus struct { 40 transportBase 41 resolver network.RoutingTable 42 handlers map[packets.PacketType]network.ConsensusPacketHandler 43 } 44 45 func (tc *transportConsensus) Start(ctx context.Context) error { 46 tc.transportBase.Start(ctx) 47 return nil 48 } 49 50 func (tc *transportConsensus) Stop(ctx context.Context) error { 51 tc.transportBase.Stop() 52 return nil 53 } 54 55 // RegisterPacketHandler register a handler function to process incoming requests of a specific type. 56 func (tc *transportConsensus) RegisterPacketHandler(t packets.PacketType, handler network.ConsensusPacketHandler) { 57 _, exists := tc.handlers[t] 58 if exists { 59 log.Warnf("Multiple handlers for packet type %s are not supported! New handler will replace the old one!", t) 60 } 61 tc.handlers[t] = handler 62 } 63 64 func (tc *transportConsensus) SignAndSendPacket(packet packets.ConsensusPacket, 65 receiver core.RecordRef, service core.CryptographyService) error { 66 67 receiverHost, err := tc.resolver.ResolveConsensusRef(receiver) 68 if err != nil { 69 return errors.Wrapf(err, "Failed to resolve %s request to node %s", packet.GetType(), receiver.String()) 70 } 71 log.Debugf("Send %s request to host %s", packet.GetType(), receiverHost) 72 packet.SetRouting(tc.origin.ShortID, receiverHost.ShortID) 73 err = packet.Sign(service) 74 if err != nil { 75 return errors.Wrapf(err, "Failed to sign %s request to node %s", packet.GetType(), receiver.String()) 76 } 77 ctx := context.Background() 78 p := tc.buildPacket(packet, receiverHost) 79 err = tc.transport.SendPacket(ctx, p) 80 if err == nil { 81 statsErr := stats.RecordWithTags(ctx, []tag.Mutator{ 82 tag.Upsert(consensus.TagPhase, packet.GetType().String()), 83 }, consensus.PacketsSent.M(1)) 84 if statsErr != nil { 85 log.Warn(" [ transportConsensus ] Failed to record sent packets metric: " + statsErr.Error()) 86 } 87 } 88 return err 89 } 90 91 func (tc *transportConsensus) buildPacket(p packets.ConsensusPacket, receiver *host.Host) *packet.Packet { 92 return packet.NewBuilder(tc.origin).Receiver(receiver).Request(p).Build() 93 } 94 95 func (tc *transportConsensus) processMessage(msg *packet.Packet) { 96 p, ok := msg.Data.(packets.ConsensusPacket) 97 if !ok { 98 log.Error("Error processing incoming message: failed to convert to ConsensusPacket") 99 return 100 } 101 log.Debugf("Got %s request from host, shortID: %d", p.GetType(), p.GetOrigin()) 102 if p.GetTarget() != tc.origin.ShortID { 103 log.Errorf("Error processing incoming message: target ID %d differs from origin %d", p.GetTarget(), tc.origin.ShortID) 104 return 105 } 106 if p.GetOrigin() == tc.origin.ShortID { 107 log.Errorf("Error processing incoming message: sender ID %d equals to origin %d", p.GetTarget(), tc.origin.ShortID) 108 return 109 } 110 sender, err := tc.resolver.ResolveConsensus(p.GetOrigin()) 111 // TODO: NETD18-79 112 // special case for Phase1 because we can get a valid packet from a node we don't know yet (first consensus case) 113 if err != nil && p.GetType() != packets.Phase1 { 114 log.Errorf("Error processing incoming message: failed to resolve ShortID (%d) -> NodeID", p.GetOrigin()) 115 return 116 } 117 if sender == nil { 118 sender = &host.Host{} 119 } 120 handler, exist := tc.handlers[p.GetType()] 121 if !exist { 122 log.Errorf("No handler set for packet type %s from node %d, %s", p.GetType(), sender.ShortID, sender.NodeID) 123 return 124 } 125 handler(p, sender.NodeID) 126 } 127 128 func NewConsensusNetwork(address, nodeID string, shortID core.ShortNodeID, 129 resolver network.RoutingTable) (network.ConsensusNetwork, error) { 130 131 conf := configuration.Transport{} 132 conf.Address = address 133 conf.Protocol = "PURE_UDP" 134 conf.BehindNAT = false 135 136 tp, err := transport.NewTransport(conf, relay.NewProxy()) 137 if err != nil { 138 return nil, errors.Wrap(err, "error creating transport") 139 } 140 origin, err := getOrigin(tp, nodeID) 141 if err != nil { 142 go tp.Stop() 143 <-tp.Stopped() 144 tp.Close() 145 return nil, errors.Wrap(err, "error getting origin") 146 } 147 origin.ShortID = shortID 148 result := &transportConsensus{handlers: make(map[packets.PacketType]network.ConsensusPacketHandler)} 149 150 result.transport = tp 151 result.sequenceGenerator = sequence.NewGeneratorImpl() 152 result.resolver = resolver 153 result.origin = origin 154 result.messageProcessor = result.processMessage 155 return result, nil 156 }