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default.go
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package libp2p
import (
"context"
"fmt"
openpgpcrypto "github.com/ProtonMail/gopenpgp/v2/crypto"
"github.com/curltech/go-colla-core/config"
"github.com/curltech/go-colla-core/crypto"
"github.com/curltech/go-colla-core/crypto/openpgp"
"github.com/curltech/go-colla-core/crypto/std"
entity2 "github.com/curltech/go-colla-core/entity"
"github.com/curltech/go-colla-core/logger"
"github.com/curltech/go-colla-core/util/message"
"github.com/curltech/go-colla-node/libp2p/dht"
"github.com/curltech/go-colla-node/libp2p/global"
"github.com/curltech/go-colla-node/libp2p/pipe/handler"
"github.com/curltech/go-colla-node/libp2p/pubsub"
"github.com/curltech/go-colla-node/libp2p/routingtable"
"github.com/curltech/go-colla-node/libp2p/util"
service1 "github.com/curltech/go-colla-node/p2p/chain/service"
"github.com/curltech/go-colla-node/p2p/dht/entity"
"github.com/curltech/go-colla-node/p2p/dht/service"
"github.com/curltech/go-colla-node/transport/websocket/wss"
//"github.com/curltech/go-colla-node/transport/websocket/fastwss"
"github.com/libp2p/go-libp2p"
autonat "github.com/libp2p/go-libp2p-autonat"
relay "github.com/libp2p/go-libp2p-circuit"
connmgr "github.com/libp2p/go-libp2p-connmgr"
libp2pcrypto "github.com/libp2p/go-libp2p-core/crypto"
"github.com/libp2p/go-libp2p-core/host"
"github.com/libp2p/go-libp2p-core/peer"
"github.com/libp2p/go-libp2p-core/protocol"
"github.com/libp2p/go-libp2p-core/routing"
dht2 "github.com/libp2p/go-libp2p-kad-dht"
mplex "github.com/libp2p/go-libp2p-mplex"
noise "github.com/libp2p/go-libp2p-noise"
libp2pquic "github.com/libp2p/go-libp2p-quic-transport"
secio "github.com/libp2p/go-libp2p-secio"
libp2ptls "github.com/libp2p/go-libp2p-tls"
"github.com/libp2p/go-libp2p/p2p/protocol/ping"
"github.com/libp2p/go-tcp-transport"
ws "github.com/libp2p/go-ws-transport"
ma "github.com/multiformats/go-multiaddr"
"time"
)
/**
golang.org/x/crypto的库需要替换成libp2p的定制版本
*/
/**
根据配置的协议编号自定义流协议,其他peer连接自己的时候,用于在节点间接收和发送数据
*/
func chainProtocolStream() protocol.ID {
if config.P2pParams.ChainProtocolID == "" {
panic("NoChainProtocolID")
}
global.Global.ChainProtocolID = protocol.ID(config.P2pParams.ChainProtocolID)
handler.ProtocolStream(global.Global.ChainProtocolID)
return global.Global.ChainProtocolID
}
func listenAddr() libp2p.Option {
if len(config.Libp2pParams.Addrs) == 0 {
//没有单独激活websocket,所以激活tcp
if !config.Libp2pParams.EnableWebsocket {
tcpAddr := fmt.Sprintf(global.DefaultAddrFormat, config.Libp2pParams.Addr, config.Libp2pParams.Port)
config.Libp2pParams.Addrs = append(config.Libp2pParams.Addrs, tcpAddr)
}
wsAddr := fmt.Sprintf(global.DefaultWsAddrFormat, config.Libp2pParams.Addr, config.Libp2pParams.WsPort)
config.Libp2pParams.Addrs = append(config.Libp2pParams.Addrs, wsAddr)
//激活websocket或者wss
if config.Libp2pParams.EnableWss {
wssAddr := fmt.Sprintf(global.DefaultWssAddrFormat, config.Libp2pParams.Addr, config.Libp2pParams.WssPort)
config.Libp2pParams.Addrs = append(config.Libp2pParams.Addrs, wssAddr)
}
//if config.Libp2pParams.EnableWebrtcStar {
// webrtcAddr := fmt.Sprintf(global.DefaultWebrtcstarAddrFormat, config.Libp2pParams.Addr, config.Libp2pParams.WebrtcStarPort)
// config.Libp2pParams.Addrs = append(config.Libp2pParams.Addrs, webrtcAddr)
//}
}
listenAddrOption := libp2p.ListenAddrStrings(config.Libp2pParams.Addrs...)
return listenAddrOption
}
func p2pOptions() []libp2p.Option {
options := []libp2p.Option{}
// support TLS connections
if config.Libp2pParams.EnableTls {
tlsOption := libp2p.Security(libp2ptls.ID, libp2ptls.New)
options = append(options, tlsOption)
logger.Sugar.Debugf("start tls option")
}
// support noise connections
if config.Libp2pParams.EnableNoise {
noiseOption := libp2p.Security(noise.ID, noise.New)
options = append(options, noiseOption)
logger.Sugar.Debugf("start noise option")
}
// support secio connections
if config.Libp2pParams.EnableSecio {
secioOption := libp2p.Security(secio.ID, secio.New)
options = append(options, secioOption)
logger.Sugar.Debugf("start secio option")
}
// support QUIC - experimental
if config.Libp2pParams.EnableQuic {
quicOption := libp2p.Transport(libp2pquic.NewTransport)
options = append(options, quicOption)
logger.Sugar.Debugf("start quic option")
}
// Let's prevent our peer from having too many
// connections by attaching a connection manager.
basicConnMgr := connmgr.NewConnManager(
config.Libp2pParams.LowWater, // Lowwater
config.Libp2pParams.HighWater, // HighWater,
time.Duration(config.Libp2pParams.GracePeriod)*time.Minute, // GracePeriod
)
monitorConnMgr := NewConnManager(basicConnMgr)
global.Global.ConnectionManager = monitorConnMgr
connectionManagerOption := libp2p.ConnectionManager(global.Global.ConnectionManager)
options = append(options, connectionManagerOption)
logger.Sugar.Debugf("start ConnectionManager option")
//是否用缺省的ping服务
defaultPing, _ := config.GetBool("p2p.dht.defaultPing", true)
if !defaultPing {
pingOption := libp2p.Ping(defaultPing)
options = append(options, pingOption)
ps := &ping.PingService{Host: global.Global.Host}
global.Global.Host.SetStreamHandler(ping.ID, ps.PingHandler)
}
// Attempt to open ports using uPNP for NATed hosts.
if config.Libp2pParams.EnableNatPortMap {
natPortMap := libp2p.NATPortMap()
options = append(options, natPortMap)
logger.Sugar.Debugf("start NATPortMap option")
}
// Attempt to open EnableNATService,实施回拨确认机制
if config.Libp2pParams.EnableNATService {
enableNATService := libp2p.EnableNATService()
//libp2p.AutoNATServiceRateLimit()
options = append(options, enableNATService)
logger.Sugar.Debugf("start EnableNATService option")
}
//if config.Libp2pParams.NATManager {
// natManager := libp2p.NATManager(nil)
// options = append(options, natManager)
// logger.Sugar.Infof("start NATManager option")
//}
// Attempt to open ConnectionGater,控制连接的安全性
if config.Libp2pParams.ConnectionGater {
connectionGater := libp2p.ConnectionGater(nil)
options = append(options, connectionGater)
logger.Sugar.Debugf("start ConnectionGater option")
}
if config.Libp2pParams.ForceReachabilityPublic {
forceReachabilityPublic := libp2p.ForceReachabilityPublic()
options = append(options, forceReachabilityPublic)
logger.Sugar.Debugf("start ForceReachabilityPublic option")
}
if config.Libp2pParams.ForceReachabilityPrivate {
forceReachabilityPrivate := libp2p.ForceReachabilityPrivate()
options = append(options, forceReachabilityPrivate)
logger.Sugar.Debugf("start ForceReachabilityPrivate option")
}
// Let this host use the DHT to find other hosts
if config.Libp2pParams.EnableRouting {
routing := libp2p.Routing(func(h host.Host) (routing.PeerRouting, error) {
return global.Global.PeerEndpointDHT, nil
})
options = append(options, routing)
logger.Sugar.Debugf("start Routing option")
}
if config.Libp2pParams.EnableRelay {
relay := libp2p.EnableRelay(relay.OptHop)
options = append(options, relay)
logger.Sugar.Debugf("start EnableRelay option")
}
// 1. When this libp2p node is configured to act as a relay "hop"
// (circuit.OptHop is passed to EnableRelay), this node will advertise itself
// as a public relay using the provided routing system.
// 2. When this libp2p node is _not_ configured as a relay "hop", it will
// automatically detect if it is unreachable (e.g., behind a NAT). If so, it will
// find, configure, and announce a set of public relays.
if config.Libp2pParams.EnableAutoRelay {
relay := libp2p.EnableAutoRelay()
options = append(options, relay)
logger.Sugar.Debugf("start EnableAutoRelay option")
}
/**
手工指定外部的地址和端口
*/
if config.Libp2pParams.EnableAddressFactory {
addr := config.Libp2pParams.ExternalAddr
var httpMultiAddr, wsMultiAddr ma.Multiaddr
var httpErr, wsErr error
if addr == "" {
logger.Sugar.Errorf("Server Addr(External IP) not defined, Peers might not be able to resolve this node if behind NAT\n")
} else {
/**
这里应该支持多个,方便支持多种协议
*/
httpMultiAddr, httpErr = ma.NewMultiaddr(fmt.Sprintf(global.DefaultDnsAddrFormat, addr, config.Libp2pParams.ExternalPort))
if httpErr != nil {
logger.Sugar.Errorf("Error creating httpMultiAddr: %v\n", httpErr)
}
wsMultiAddr, wsErr = ma.NewMultiaddr(fmt.Sprintf(global.DefaultDnsWsAddrFormat, addr, config.Libp2pParams.ExternalWsPort))
if wsErr != nil {
logger.Sugar.Errorf("Error creating wsMultiAddr: %v\n", wsErr)
}
if httpErr == nil || wsErr == nil {
addressFactory := func(addrs []ma.Multiaddr) []ma.Multiaddr {
if httpErr == nil && httpMultiAddr != nil {
addrs = append(addrs, httpMultiAddr)
}
if wsErr == nil && wsMultiAddr != nil {
addrs = append(addrs, wsMultiAddr)
}
return addrs
}
addressFactoryOption := libp2p.AddrsFactory(addressFactory)
options = append(options, addressFactoryOption)
logger.Sugar.Debugf("start addressFactory option")
}
}
}
//是否单独激活websocket
if config.Libp2pParams.EnableWebsocket {
wsOption := libp2p.Transport(ws.New)
options = append(options, wsOption)
logger.Sugar.Debugf("start EnableWebsocket option")
}
// libp2p wss, config.TlsParams.Mode="cert" or config.TlsParams.Domain
if config.Libp2pParams.EnableWss {
tcpOption := libp2p.Transport(tcp.NewTCPTransport)
options = append(options, tcpOption)
logger.Sugar.Debugf("start EnableTcp option")
wssOption := libp2p.Transport(wss.New)
//wssOption := libp2p.Transport(fastwss.New)
options = append(options, wssOption)
logger.Sugar.Debugf("start EnableWss option")
}
// support any other default transports (TCP)
//defaultTransport := libp2p.DefaultTransports
//options = append(options, defaultTransport)
//libp2p.Transport(tcp.NewTCPTransport)
//options = append(options, libp2p.Muxer("/yamux/1.0.0", yamux.DefaultConfig()))
options = append(options, libp2p.Muxer("/mplex/6.7.0", mplex.DefaultTransport))
// 嵌入webrtc2.0的支持,和js端可以兼容,但只能单独使用
// mplex "github.com/whyrusleeping/go-smux-multiplex"需要make deps
///ip4/127.0.0.1/tcp/9090/http/p2p-webrtc-direct
//if config.Libp2pParams.EnableWebrtc {
// transport := direct.NewTransport(
// webrtc.Configuration{},
// new(mplex.Transport),
// )
// wrOption := libp2p.Transport(transport)
// options = append(options, wrOption)
// logger.Sugar.Infof("start EnableWebrtc option")
//}
return options
}
func autoNat() {
// If you want to help other peers to figure out if they are behind
// NATs, you can launch the server-side of AutoNAT too (AutoRelay
// already runs the client)
if config.Libp2pParams.EnableAutoNat {
//_ = autonat.EnableService(nil)
_, err := autonat.New(global.Global.Context, global.Global.Host)
if err != nil {
panic(err)
}
}
}
/**
获取自己节点的记录,如果没有就创建一个,返回私钥用于启动节点
*/
func getMyselfPeer() (libp2pcrypto.PrivKey, *entity.MyselfPeer) {
myself := entity.MyselfPeer{}
myself.Status = entity2.EntityStatus_Effective
password := config.ServerParams.Password
if password == "" {
panic("NoPassword")
}
found, _ := service.GetMyselfPeerService().Get(&myself, false, "", "")
if found {
privateKey := std.DecodeBase64(myself.PeerPrivateKey)
priv, err := libp2pcrypto.UnmarshalPrivateKey(privateKey)
if err != nil {
panic(err)
}
global.Global.PeerPrivateKey = priv
global.Global.PeerPublicKey = priv.GetPublic()
openpgpPrivateKey := std.DecodeBase64(myself.PrivateKey)
openpgpPriv, err := openpgp.LoadPrivateKey(openpgpPrivateKey, password)
if err != nil {
panic(err)
}
global.Global.PrivateKey = openpgpPriv
openpgpPublicKey := std.DecodeBase64(myself.PublicKey)
openpgpPub, err := openpgp.LoadPublicKey(openpgpPublicKey)
if err != nil {
panic(err)
}
global.Global.PublicKey = openpgpPub
return priv, &myself
} else {
name := config.ServerParams.Name
if name == "" {
panic("NoServerName")
}
email := config.ServerParams.Email
if email == "" {
panic("NoEmail")
}
myself = entity.MyselfPeer{}
myself.Name = name
myself.Email = email
/**
peerId对应的密钥对
*/
priv, _, _ := libp2pcrypto.GenerateKeyPair(libp2pcrypto.Ed25519, 0)
global.Global.PeerPrivateKey = priv
global.Global.PeerPublicKey = priv.GetPublic()
bs, err := priv.Bytes()
if err != nil {
panic(err)
}
myself.PeerPrivateKey = std.EncodeBase64(bs)
logger.Sugar.Debugf("PeerPrivateKey length: %v", len(myself.PeerPrivateKey))
bs, err = priv.GetPublic().Bytes()
if err != nil {
panic(err)
}
myself.PeerPublicKey = std.EncodeBase64(bs)
logger.Sugar.Debugf("PeerPublicKey length: %v", len(myself.PeerPublicKey))
/**
加密对应的密钥对openpgp
*/
privKey := openpgp.GenerateKeyPair(crypto.KeyPairType_Ed25519, []byte(password), false, name, email)
privateKey := privKey.(*openpgpcrypto.Key)
myself.PrivateKey = std.EncodeBase64(openpgp.BytePrivateKey(privateKey, []byte(password)))
global.Global.PrivateKey = privateKey
logger.Sugar.Debugf("PrivateKey length: %v", len(myself.PrivateKey))
publicKey := openpgp.GetPublicKey(privateKey)
global.Global.PublicKey = publicKey
bs = openpgp.BytePublicKey(publicKey)
myself.PublicKey = std.EncodeBase64(bs)
logger.Sugar.Debugf("PublicKey length: %v", len(myself.PublicKey))
myself.SecurityContext, _ = message.TextMarshal(crypto.SecurityContext{
Protocol: crypto.Protocol_openpgp,
KeyPairType: crypto.KeyPairType_Ed25519,
})
currentTime := time.Now()
myself.LastUpdateTime = ¤tTime
return priv, &myself
}
}
/**
启动本机作为一个p2p节点主机
*/
func Start() {
// 背景上下文
global.Global.Context = context.Background()
//1.设置监听地址
listenAddrOption := listenAddr()
//2.获取或者创建本节点的私钥
priv, myself := getMyselfPeer()
//3.根据私钥创建本机唯一的ID
idOption := libp2p.Identity(priv)
//4.启动自己的p2p节点
var err error
options := p2pOptions()
options = append(options, listenAddrOption)
options = append(options, idOption)
//if config.Libp2pParams.EnableWebrtcStar {
// //starOption := webrtcstar.StarTransportOption(global.Global.PeerPrivateKey.GetPublic())
// //options = append(options, starOption...)
// logger.Sugar.Infof("start EnableWebrtcStar option")
//}
global.Global.Host, err = libp2p.New(global.Global.Context, options...)
if err != nil {
panic(err)
}
logger.Sugar.Infof("Host created, Addrs: %v", global.Global.Host.Addrs())
autoNat()
//5.启动成功后更新自己节点的信息到数据库
upsertMyselfPeer(priv, myself)
//6.自定义数据传输的流协议
chainProtocolStream()
//7.启动dht,并配置dhtOption
NewPeerEndpointDHT(dhtOptions())
//8.手工配置发现节点,只设置dhtOption的Bootstrap也能工作,就是慢点,需要等待刷新周期
//这一步代码里会主动连接,所以比较快,所以装载PeerEndpoint比较合适
Bootstrap()
//把自己的信息写到分布式网络,但是不写其他节点通过GetValue也能找到
dht.PeerEndpointDHT.PutMyself()
//9.设置其他的路由发现方式,发现不能打开,会因为连接不上删除节点
//routingDiscovery()
//10.局域网可设置mdns路由发现方式
//mdns()
//11.schedule to delete expired data blocks
go func() {
ticker := time.NewTicker(time.Minute * 60)
for range ticker.C {
service1.GetDataBlockService().DeleteExpiredDB()
}
}()
//handler.SetNetNotifiee()
//ipfs.Start()
global.Global.PeerEndpointDHT.RoutingTable().Print()
global.Print()
select {}
}
func connect(peer *peer.AddrInfo) {
err := global.Global.Host.Connect(global.Global.Context, *peer)
if err != nil {
logger.Sugar.Errorf("cannot connect peer: %v", peer)
}
}
func subcrible() *pubsub.PubsubTopic {
topic, err := pubsub.Subscribe(config.Libp2pParams.Topic)
if err != nil {
logger.Sugar.Errorf("cannot subscribe topic: %v, err: %v", config.Libp2pParams.Topic, err)
}
return topic
}
func upsertMyselfPeer(priv libp2pcrypto.PrivKey, myself *entity.MyselfPeer) (needUpdate bool) {
needUpdate = false
id := myself.Id
if config.ServerParams.ExternalAddr == "" {
logger.Sugar.Errorf("NoHttpServerExternalAddr")
}
if config.ServerParams.ExternalPort == "" {
logger.Sugar.Errorf("NoHttpServerExternalPort")
}
var discoveryAddress string = ""
//discoveryAddress = config.ServerParams.ExternalAddr + ":" + config.ServerParams.ExternalPort
addr := config.Libp2pParams.ExternalAddr
if addr == "" {
logger.Sugar.Errorf("Server Addr(External IP) not defined, Peers might not be able to resolve this node if behind NAT\n")
} else {
wssMultiAddr, wssErr := ma.NewMultiaddr(fmt.Sprintf(global.DefaultDnsWssAddrFormat, addr, config.Libp2pParams.ExternalWssPort))
if wssErr != nil {
logger.Sugar.Errorf("Error creating wssMultiAddr: %v\n", wssErr)
} else if wssMultiAddr != nil {
if myself.PeerId == "" {
myself.PeerId = global.Global.Host.ID().String()
}
discoveryAddress = fmt.Sprintf(global.GeneralP2pAddrFormat, wssMultiAddr.String(), myself.PeerId)
}
}
if id == 0 { //新的
needUpdate = true
myself.Status = entity2.EntityStatus_Effective
myself.PeerId = global.Global.Host.ID().String()
var err error
var saddrs = util.ToString(global.Global.Host.Addrs())
myself.Address, err = message.TextMarshal(saddrs)
if err != nil {
panic(err)
}
myself.DiscoveryAddress = discoveryAddress
affected, _ := service.GetMyselfPeerService().Insert(myself)
if affected == 0 {
panic("NoInsert")
}
} else {
if myself.PeerId != global.Global.Host.ID().String() {
needUpdate = true
myself.PeerId = global.Global.Host.ID().String()
logger.Sugar.Infof("PeerId changed")
}
var saddrs = util.ToString(global.Global.Host.Addrs())
addrs, err := message.TextMarshal(saddrs)
if err != nil {
panic(err)
}
if myself.Address != addrs {
needUpdate = true
myself.Address = addrs
logger.Sugar.Infof("Address changed")
}
if myself.DiscoveryAddress != discoveryAddress {
needUpdate = true
myself.DiscoveryAddress = discoveryAddress
logger.Sugar.Infof("DiscoveryAddress changed")
}
bs, err := priv.GetPublic().Bytes()
if err != nil {
panic(err)
}
if myself.PeerPublicKey != std.EncodeBase64(bs) {
needUpdate = true
myself.PeerPublicKey = std.EncodeBase64(bs)
logger.Sugar.Infof("PublicKey changed")
}
name := config.ServerParams.Name
if name == "" {
panic("NoServerName")
}
if myself.Name != name {
needUpdate = true
myself.Name = name
logger.Sugar.Infof("Name changed")
}
email := config.ServerParams.Email
if email == "" {
panic("NoEmail")
}
if myself.Email != email {
needUpdate = true
myself.Email = email
logger.Sugar.Infof("Email changed")
}
if needUpdate {
affected, _ := service.GetMyselfPeerService().Update([]interface{}{myself}, nil, "")
if affected == 0 {
panic("NoUpdate")
}
}
}
global.Global.PeerId = peer.ID(myself.PeerId)
global.Global.MyselfPeer = myself
return needUpdate
}
/**
为了节点发现启动DHT
*/
func NewPeerEndpointDHT(options []dht2.Option) *dht.PeerEntityDHT {
var err error
global.Global.PeerEndpointDHT, err = dht2.New(global.Global.Context, global.Global.Host, options...)
if err != nil {
panic(err)
}
dht.PeerEndpointDHT.DHT = global.Global.PeerEndpointDHT
dht.PeerEndpointDHT.RoutingTable = &routingtable.PeerEntityRoutingTable{
global.Global.PeerEndpointDHT.RoutingTable(),
}
dht.PeerEndpointDHT.RoutingTable.PeerAdded(PeerAdded)
/**
当一个节点被从路由表中移出的时候,将peerendpoint的对应记录设置为down
*/
dht.PeerEndpointDHT.RoutingTable.PeerRemoved(PeerRemoved)
return dht.PeerEndpointDHT
}