147 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			147 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package common
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import (
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	"context"
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	"sort"
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	"strings"
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	logging "github.com/ipfs/go-log/v2"
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	"github.com/gbrlsnchs/jwt/v3"
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	"github.com/libp2p/go-libp2p-core/host"
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	"github.com/libp2p/go-libp2p-core/network"
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	"github.com/libp2p/go-libp2p-core/peer"
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	swarm "github.com/libp2p/go-libp2p-swarm"
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	ma "github.com/multiformats/go-multiaddr"
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	"go.uber.org/fx"
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	"golang.org/x/xerrors"
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	"github.com/filecoin-project/go-jsonrpc/auth"
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	"github.com/filecoin-project/lotus/api"
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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/lp2p"
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)
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type CommonAPI struct {
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	fx.In
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	APISecret    *dtypes.APIAlg
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	Host         host.Host
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	Router       lp2p.BaseIpfsRouting
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	Sk           *dtypes.ScoreKeeper
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	ShutdownChan dtypes.ShutdownChan
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}
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type jwtPayload struct {
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	Allow []auth.Permission
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}
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func (a *CommonAPI) AuthVerify(ctx context.Context, token string) ([]auth.Permission, error) {
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	var payload jwtPayload
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	if _, err := jwt.Verify([]byte(token), (*jwt.HMACSHA)(a.APISecret), &payload); err != nil {
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		return nil, xerrors.Errorf("JWT Verification failed: %w", err)
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	}
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	return payload.Allow, nil
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}
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func (a *CommonAPI) AuthNew(ctx context.Context, perms []auth.Permission) ([]byte, error) {
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	p := jwtPayload{
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		Allow: perms, // TODO: consider checking validity
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	}
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	return jwt.Sign(&p, (*jwt.HMACSHA)(a.APISecret))
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}
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func (a *CommonAPI) NetConnectedness(ctx context.Context, pid peer.ID) (network.Connectedness, error) {
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	return a.Host.Network().Connectedness(pid), nil
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}
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func (a *CommonAPI) NetPubsubScores(context.Context) ([]api.PubsubScore, error) {
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	scores := a.Sk.Get()
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	out := make([]api.PubsubScore, len(scores))
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	i := 0
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	for k, v := range scores {
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		out[i] = api.PubsubScore{ID: k, Score: v}
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		i++
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	}
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	sort.Slice(out, func(i, j int) bool {
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		return strings.Compare(string(out[i].ID), string(out[j].ID)) > 0
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	})
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	return out, nil
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}
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func (a *CommonAPI) NetPeers(context.Context) ([]peer.AddrInfo, error) {
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	conns := a.Host.Network().Conns()
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	out := make([]peer.AddrInfo, len(conns))
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	for i, conn := range conns {
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		out[i] = peer.AddrInfo{
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			ID: conn.RemotePeer(),
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			Addrs: []ma.Multiaddr{
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				conn.RemoteMultiaddr(),
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			},
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		}
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	}
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	return out, nil
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}
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func (a *CommonAPI) NetConnect(ctx context.Context, p peer.AddrInfo) error {
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	if swrm, ok := a.Host.Network().(*swarm.Swarm); ok {
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		swrm.Backoff().Clear(p.ID)
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	}
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	return a.Host.Connect(ctx, p)
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}
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func (a *CommonAPI) NetAddrsListen(context.Context) (peer.AddrInfo, error) {
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	return peer.AddrInfo{
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		ID:    a.Host.ID(),
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		Addrs: a.Host.Addrs(),
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	}, nil
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}
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func (a *CommonAPI) NetDisconnect(ctx context.Context, p peer.ID) error {
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	return a.Host.Network().ClosePeer(p)
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}
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func (a *CommonAPI) NetFindPeer(ctx context.Context, p peer.ID) (peer.AddrInfo, error) {
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	return a.Router.FindPeer(ctx, p)
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}
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func (a *CommonAPI) ID(context.Context) (peer.ID, error) {
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	return a.Host.ID(), nil
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}
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func (a *CommonAPI) Version(context.Context) (api.Version, error) {
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	return api.Version{
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		Version:    build.UserVersion(),
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		APIVersion: build.APIVersion,
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		BlockDelay: build.BlockDelaySecs,
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	}, nil
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}
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func (a *CommonAPI) LogList(context.Context) ([]string, error) {
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	return logging.GetSubsystems(), nil
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}
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func (a *CommonAPI) LogSetLevel(ctx context.Context, subsystem, level string) error {
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	return logging.SetLogLevel(subsystem, level)
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}
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func (a *CommonAPI) Shutdown(ctx context.Context) error {
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	a.ShutdownChan <- struct{}{}
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	return nil
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}
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func (a *CommonAPI) Closing(ctx context.Context) (<-chan struct{}, error) {
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	return make(chan struct{}), nil // relies on jsonrpc closing
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}
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var _ api.Common = &CommonAPI{}
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