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package lotus
import (
"context"
"fmt"
logging "github.com/ipfs/go-log/v2"
"github.com/libp2p/go-libp2p-core/network"
"github.com/libp2p/go-libp2p-core/peer"
"github.com/textileio/powergate/iplocation"
"github.com/textileio/powergate/lotus"
"github.com/textileio/powergate/net"
)
var (
_ net.Module = (*Module)(nil)
log = logging.Logger("net")
)
// Module exposes the filecoin wallet api.
type Module struct {
clientBuilder lotus.ClientBuilder
lr iplocation.LocationResolver
}
// New creates a new net module.
func New(clientBuilder lotus.ClientBuilder, lr iplocation.LocationResolver) *Module {
m := &Module{
clientBuilder: clientBuilder,
lr: lr,
}
return m
}
// ListenAddr implements ListenAddr.
func (m *Module) ListenAddr(ctx context.Context) (peer.AddrInfo, error) {
client, cls, err := m.clientBuilder()
if err != nil {
return peer.AddrInfo{}, fmt.Errorf("creating lotus client: %s", err)
}
defer cls()
return client.NetAddrsListen(ctx)
}
// ConnectPeer implements ConnectPeer.
func (m *Module) ConnectPeer(ctx context.Context, addrInfo peer.AddrInfo) error {
client, cls, err := m.clientBuilder()
if err != nil {
return fmt.Errorf("creating lotus client: %s", err)
}
defer cls()
return client.NetConnect(ctx, addrInfo)
}
// DisconnectPeer implements DisconnectPeer.
func (m *Module) DisconnectPeer(ctx context.Context, peerID peer.ID) error {
client, cls, err := m.clientBuilder()
if err != nil {
return fmt.Errorf("creating lotus client: %s", err)
}
defer cls()
return client.NetDisconnect(ctx, peerID)
}
// FindPeer implements FindPeer.
func (m *Module) FindPeer(ctx context.Context, peerID peer.ID) (net.PeerInfo, error) {
client, cls, err := m.clientBuilder()
if err != nil {
return net.PeerInfo{}, fmt.Errorf("creating lotus client: %s", err)
}
defer cls()
addrInfo, err := client.NetFindPeer(ctx, peerID)
if err != nil {
return net.PeerInfo{}, err
}
loc, err := m.lr.Resolve(addrInfo.Addrs)
if err == iplocation.ErrCantResolve {
return net.PeerInfo{
AddrInfo: addrInfo,
}, nil
}
if err != nil {
return net.PeerInfo{}, err
}
return net.PeerInfo{
AddrInfo: addrInfo,
Location: &loc,
}, nil
}
// Peers implements Peers.
func (m *Module) Peers(ctx context.Context) ([]net.PeerInfo, error) {
client, cls, err := m.clientBuilder()
if err != nil {
return nil, fmt.Errorf("creating lotus client: %s", err)
}
defer cls()
addrInfos, err := client.NetPeers(ctx)
if err != nil {
return nil, err
}
peerInfos := make([]net.PeerInfo, len(addrInfos))
for i, addrInfo := range addrInfos {
loc, err := m.lr.Resolve(addrInfo.Addrs)
if err == iplocation.ErrCantResolve {
peerInfos[i] = net.PeerInfo{
AddrInfo: addrInfo,
}
continue
}
if err != nil {
return nil, err
}
peerInfos[i] = net.PeerInfo{
AddrInfo: addrInfo,
Location: &loc,
}
}
return peerInfos, nil
}
// Connectedness implements Connectedness.
func (m *Module) Connectedness(ctx context.Context, peerID peer.ID) (net.Connectedness, error) {
client, cls, err := m.clientBuilder()
if err != nil {
return net.Error, fmt.Errorf("creating lotus client: %s", err)
}
defer cls()
con, err := client.NetConnectedness(ctx, peerID)
if err != nil {
return net.Error, err
}
switch con {
case network.CanConnect:
return net.CanConnect, nil
case network.CannotConnect:
return net.CannotConnect, nil
case network.Connected:
return net.Connected, nil
case network.NotConnected:
return net.NotConnected, nil
default:
log.Warnf("unspecified peer connectedness &v", con)
return net.Unspecified, nil
}
}