107 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			107 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| package lp2p
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| 
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| import (
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| 	"context"
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| 	"fmt"
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| 
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| 	nilrouting "github.com/ipfs/go-ipfs-routing/none"
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| 	"github.com/libp2p/go-libp2p"
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| 	"github.com/libp2p/go-libp2p-core/host"
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| 	"github.com/libp2p/go-libp2p-core/peer"
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| 	"github.com/libp2p/go-libp2p-core/peerstore"
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| 	dht "github.com/libp2p/go-libp2p-kad-dht"
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| 	dhtopts "github.com/libp2p/go-libp2p-kad-dht/opts"
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| 	record "github.com/libp2p/go-libp2p-record"
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| 	routedhost "github.com/libp2p/go-libp2p/p2p/host/routed"
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| 	mocknet "github.com/libp2p/go-libp2p/p2p/net/mock"
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| 	"go.uber.org/fx"
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| 
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| 	"github.com/filecoin-project/lotus/build"
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| 	"github.com/filecoin-project/lotus/node/modules/dtypes"
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| 	"github.com/filecoin-project/lotus/node/modules/helpers"
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| )
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| 
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| type P2PHostIn struct {
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| 	fx.In
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| 
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| 	ID        peer.ID
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| 	Peerstore peerstore.Peerstore
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| 
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| 	Opts [][]libp2p.Option `group:"libp2p"`
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| }
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| 
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| // ////////////////////////
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| 
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| type RawHost host.Host
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| 
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| func Host(mctx helpers.MetricsCtx, lc fx.Lifecycle, params P2PHostIn) (RawHost, error) {
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| 	ctx := helpers.LifecycleCtx(mctx, lc)
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| 
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| 	pkey := params.Peerstore.PrivKey(params.ID)
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| 	if pkey == nil {
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| 		return nil, fmt.Errorf("missing private key for node ID: %s", params.ID.Pretty())
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| 	}
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| 
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| 	opts := []libp2p.Option{
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| 		libp2p.Identity(pkey),
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| 		libp2p.Peerstore(params.Peerstore),
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| 		libp2p.NoListenAddrs,
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| 		libp2p.Ping(true),
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| 		libp2p.UserAgent("lotus-" + build.UserVersion),
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| 	}
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| 	for _, o := range params.Opts {
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| 		opts = append(opts, o...)
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| 	}
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| 
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| 	h, err := libp2p.New(ctx, opts...)
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| 	if err != nil {
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| 		return nil, err
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| 	}
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| 
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| 	lc.Append(fx.Hook{
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| 		OnStop: func(ctx context.Context) error {
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| 			return h.Close()
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| 		},
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| 	})
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| 
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| 	return h, nil
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| }
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| 
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| func MockHost(mn mocknet.Mocknet, id peer.ID, ps peerstore.Peerstore) (RawHost, error) {
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| 	return mn.AddPeerWithPeerstore(id, ps)
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| }
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| 
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| func DHTRouting(client bool) interface{} {
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| 	return func(mctx helpers.MetricsCtx, lc fx.Lifecycle, host RawHost, dstore dtypes.MetadataDS, validator record.Validator, nn dtypes.NetworkName) (BaseIpfsRouting, error) {
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| 		ctx := helpers.LifecycleCtx(mctx, lc)
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| 
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| 		d, err := dht.New(
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| 			ctx, host,
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| 			dhtopts.Client(client),
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| 			dhtopts.Datastore(dstore),
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| 			dhtopts.Validator(validator),
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| 			dhtopts.Protocols(build.DhtProtocolName(nn)),
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| 		)
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| 
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| 		if err != nil {
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| 			return nil, err
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| 		}
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| 
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| 		lc.Append(fx.Hook{
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| 			OnStop: func(ctx context.Context) error {
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| 				return d.Close()
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| 			},
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| 		})
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| 
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| 		return d, nil
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| 	}
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| }
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| 
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| func NilRouting(mctx helpers.MetricsCtx) (BaseIpfsRouting, error) {
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| 	return nilrouting.ConstructNilRouting(mctx, nil, nil, nil)
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| }
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| 
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| func RoutedHost(rh RawHost, r BaseIpfsRouting) host.Host {
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| 	return routedhost.Wrap(rh, r)
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| }
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