60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
package idxprov
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import (
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"context"
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"fmt"
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logging "github.com/ipfs/go-log/v2"
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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/filecoin-project/lotus/api/v1api"
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)
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var log = logging.Logger("idxprov")
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const protectTag = "index-provider-gossipsub"
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type MeshCreator interface {
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Connect(ctx context.Context) error
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}
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type Libp2pMeshCreator struct {
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fullnodeApi v1api.FullNode
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marketsHost host.Host
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}
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func (mc Libp2pMeshCreator) Connect(ctx context.Context) error {
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// Add the markets host ID to list of daemon's protected peers first, before any attempt to
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// connect to full node over libp2p.
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marketsPeerID := mc.marketsHost.ID()
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if err := mc.fullnodeApi.NetProtectAdd(ctx, []peer.ID{marketsPeerID}); err != nil {
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return fmt.Errorf("failed to call NetProtectAdd on the full node, err: %w", err)
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}
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faddrs, err := mc.fullnodeApi.NetAddrsListen(ctx)
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if err != nil {
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return fmt.Errorf("failed to fetch full node listen addrs, err: %w", err)
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}
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// Connect from the full node, ask it to protect the connection and protect the connection on
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// markets end too. Connection is initiated form full node to avoid the need to expose libp2p port on full node
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if err := mc.fullnodeApi.NetConnect(ctx, peer.AddrInfo{
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ID: mc.marketsHost.ID(),
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Addrs: mc.marketsHost.Addrs(),
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}); err != nil {
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return fmt.Errorf("failed to connect to index provider host from full node: %w", err)
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}
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mc.marketsHost.ConnManager().Protect(faddrs.ID, protectTag)
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log.Debugw("successfully connected to full node and asked it protect indexer provider peer conn", "fullNodeInfo", faddrs.String(),
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"peerId", marketsPeerID)
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return nil
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}
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func NewMeshCreator(fullnodeApi v1api.FullNode, marketsHost host.Host) MeshCreator {
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return Libp2pMeshCreator{fullnodeApi, marketsHost}
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}
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