283 lines
6.9 KiB
Go
283 lines
6.9 KiB
Go
package client
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import (
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"context"
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"errors"
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"io"
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"math"
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"os"
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"golang.org/x/xerrors"
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"github.com/ipfs/go-blockservice"
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"github.com/ipfs/go-cid"
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"github.com/ipfs/go-filestore"
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chunker "github.com/ipfs/go-ipfs-chunker"
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offline "github.com/ipfs/go-ipfs-exchange-offline"
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files "github.com/ipfs/go-ipfs-files"
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ipld "github.com/ipfs/go-ipld-format"
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"github.com/ipfs/go-merkledag"
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"github.com/ipfs/go-unixfs/importer/balanced"
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ihelper "github.com/ipfs/go-unixfs/importer/helpers"
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"github.com/libp2p/go-libp2p-core/peer"
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"go.uber.org/fx"
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"github.com/filecoin-project/go-address"
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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/chain/deals"
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"github.com/filecoin-project/lotus/chain/store"
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"github.com/filecoin-project/lotus/chain/types"
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"github.com/filecoin-project/lotus/node/impl/full"
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"github.com/filecoin-project/lotus/node/impl/paych"
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"github.com/filecoin-project/lotus/node/modules/dtypes"
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"github.com/filecoin-project/lotus/retrieval"
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"github.com/filecoin-project/lotus/retrieval/discovery"
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)
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type API struct {
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fx.In
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full.ChainAPI
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full.StateAPI
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full.WalletAPI
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paych.PaychAPI
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DealClient *deals.Client
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RetDiscovery discovery.PeerResolver
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Retrieval *retrieval.Client
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Chain *store.ChainStore
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LocalDAG dtypes.ClientDAG
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Blockstore dtypes.ClientBlockstore
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Filestore dtypes.ClientFilestore `optional:"true"`
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}
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func (a *API) ClientStartDeal(ctx context.Context, data cid.Cid, addr address.Address, miner address.Address, epochPrice types.BigInt, blocksDuration uint64) (*cid.Cid, error) {
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exist, err := a.WalletHas(ctx, addr)
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if err != nil {
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return nil, xerrors.Errorf("failed getting addr from wallet: %w", addr)
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}
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if !exist {
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return nil, xerrors.Errorf("provided address doesn't exist in wallet")
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}
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pid, err := a.StateMinerPeerID(ctx, miner, nil)
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if err != nil {
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return nil, xerrors.Errorf("failed getting peer ID: %w", err)
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}
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mw, err := a.StateMinerWorker(ctx, miner, nil)
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if err != nil {
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return nil, xerrors.Errorf("failed getting miner worker: %w", err)
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}
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proposal := deals.ClientDealProposal{
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Data: data,
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PricePerEpoch: epochPrice,
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ProposalExpiration: math.MaxUint64, // TODO: set something reasonable
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Duration: blocksDuration,
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Client: addr,
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ProviderAddress: miner,
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MinerWorker: mw,
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MinerID: pid,
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}
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c, err := a.DealClient.Start(ctx, proposal)
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if err != nil {
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return nil, xerrors.Errorf("failed to start deal: %w", err)
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}
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return &c, nil
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}
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func (a *API) ClientListDeals(ctx context.Context) ([]api.DealInfo, error) {
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deals, err := a.DealClient.List()
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if err != nil {
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return nil, err
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}
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out := make([]api.DealInfo, len(deals))
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for k, v := range deals {
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out[k] = api.DealInfo{
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ProposalCid: v.ProposalCid,
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State: v.State,
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Provider: v.Proposal.Provider,
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PieceRef: v.Proposal.PieceRef,
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Size: v.Proposal.PieceSize,
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PricePerEpoch: v.Proposal.StoragePricePerEpoch,
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Duration: v.Proposal.Duration,
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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 *API) ClientGetDealInfo(ctx context.Context, d cid.Cid) (*api.DealInfo, error) {
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v, err := a.DealClient.GetDeal(d)
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if err != nil {
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return nil, err
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}
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return &api.DealInfo{
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ProposalCid: v.ProposalCid,
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State: v.State,
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Provider: v.Proposal.Provider,
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PieceRef: v.Proposal.PieceRef,
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Size: v.Proposal.PieceSize,
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PricePerEpoch: v.Proposal.StoragePricePerEpoch,
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Duration: v.Proposal.Duration,
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}, nil
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}
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func (a *API) ClientHasLocal(ctx context.Context, root cid.Cid) (bool, error) {
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// TODO: check if we have the ENTIRE dag
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offExch := merkledag.NewDAGService(blockservice.New(a.Blockstore, offline.Exchange(a.Blockstore)))
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_, err := offExch.Get(ctx, root)
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if err == ipld.ErrNotFound {
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return false, nil
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}
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if err != nil {
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return false, err
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}
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return true, nil
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}
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func (a *API) ClientFindData(ctx context.Context, root cid.Cid) ([]api.QueryOffer, error) {
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peers, err := a.RetDiscovery.GetPeers(root)
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if err != nil {
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return nil, err
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}
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out := make([]api.QueryOffer, len(peers))
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for k, p := range peers {
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out[k] = a.Retrieval.Query(ctx, p, root)
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}
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return out, nil
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}
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func (a *API) ClientImport(ctx context.Context, path string) (cid.Cid, error) {
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f, err := os.Open(path)
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if err != nil {
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return cid.Undef, err
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}
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stat, err := f.Stat()
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if err != nil {
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return cid.Undef, err
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}
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file, err := files.NewReaderPathFile(path, f, stat)
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if err != nil {
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return cid.Undef, err
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}
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bufferedDS := ipld.NewBufferedDAG(ctx, a.LocalDAG)
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params := ihelper.DagBuilderParams{
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Maxlinks: build.UnixfsLinksPerLevel,
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RawLeaves: true,
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CidBuilder: nil,
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Dagserv: bufferedDS,
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NoCopy: true,
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}
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db, err := params.New(chunker.NewSizeSplitter(file, int64(build.UnixfsChunkSize)))
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if err != nil {
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return cid.Undef, err
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}
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nd, err := balanced.Layout(db)
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if err != nil {
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return cid.Undef, err
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}
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if err := bufferedDS.Commit(); err != nil {
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return cid.Undef, err
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}
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return nd.Cid(), nil
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}
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func (a *API) ClientImportLocal(ctx context.Context, f io.Reader) (cid.Cid, error) {
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file := files.NewReaderFile(f)
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bufferedDS := ipld.NewBufferedDAG(ctx, a.LocalDAG)
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params := ihelper.DagBuilderParams{
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Maxlinks: build.UnixfsLinksPerLevel,
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RawLeaves: true,
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CidBuilder: nil,
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Dagserv: bufferedDS,
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}
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db, err := params.New(chunker.NewSizeSplitter(file, int64(build.UnixfsChunkSize)))
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if err != nil {
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return cid.Undef, err
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}
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nd, err := balanced.Layout(db)
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if err != nil {
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return cid.Undef, err
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}
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return nd.Cid(), bufferedDS.Commit()
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}
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func (a *API) ClientListImports(ctx context.Context) ([]api.Import, error) {
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if a.Filestore == nil {
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return nil, errors.New("listing imports is not supported with in-memory dag yet")
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}
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next, err := filestore.ListAll(a.Filestore, false)
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if err != nil {
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return nil, err
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}
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// TODO: make this less very bad by tracking root cids instead of using ListAll
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out := make([]api.Import, 0)
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for {
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r := next()
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if r == nil {
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return out, nil
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}
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if r.Offset != 0 {
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continue
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}
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out = append(out, api.Import{
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Status: r.Status,
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Key: r.Key,
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FilePath: r.FilePath,
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Size: r.Size,
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})
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}
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}
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func (a *API) ClientRetrieve(ctx context.Context, order api.RetrievalOrder, path string) error {
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if order.MinerPeerID == "" {
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pid, err := a.StateMinerPeerID(ctx, order.Miner, nil)
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if err != nil {
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return err
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}
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order.MinerPeerID = pid
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}
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outFile, err := os.OpenFile(path, os.O_TRUNC|os.O_CREATE|os.O_WRONLY, 0777)
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if err != nil {
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return err
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}
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err = a.Retrieval.RetrieveUnixfs(ctx, order.Root, order.Size, order.Total, order.MinerPeerID, order.Client, order.Miner, outFile)
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if err != nil {
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_ = outFile.Close()
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return xerrors.Errorf("RetrieveUnixfs: %w", err)
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}
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return outFile.Close()
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}
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func (a *API) ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*types.SignedStorageAsk, error) {
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return a.DealClient.QueryAsk(ctx, p, miner)
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}
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