272 lines
6.6 KiB
Go
272 lines
6.6 KiB
Go
package client
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import (
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"context"
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"errors"
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"golang.org/x/xerrors"
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"os"
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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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cbor "github.com/ipfs/go-ipld-cbor"
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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-lotus/api"
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"github.com/filecoin-project/go-lotus/build"
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"github.com/filecoin-project/go-lotus/chain/actors"
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"github.com/filecoin-project/go-lotus/chain/address"
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"github.com/filecoin-project/go-lotus/chain/deals"
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"github.com/filecoin-project/go-lotus/chain/store"
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"github.com/filecoin-project/go-lotus/chain/types"
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"github.com/filecoin-project/go-lotus/node/impl/full"
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"github.com/filecoin-project/go-lotus/node/impl/paych"
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"github.com/filecoin-project/go-lotus/node/modules/dtypes"
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"github.com/filecoin-project/go-lotus/retrieval"
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"github.com/filecoin-project/go-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, miner address.Address, price types.BigInt, blocksDuration uint64) (*cid.Cid, error) {
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// TODO: make this a param
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self, err := a.WalletDefaultAddress(ctx)
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if err != nil {
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return nil, err
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}
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// get miner peerID
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msg := &types.Message{
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To: miner,
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From: miner,
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Method: actors.MAMethods.GetPeerID,
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}
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r, err := a.StateCall(ctx, msg, nil)
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if err != nil {
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return nil, err
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}
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pid, err := peer.IDFromBytes(r.Return)
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if err != nil {
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return nil, err
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}
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vd, err := a.DealClient.VerifyParams(ctx, data)
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if err != nil {
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return nil, err
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}
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voucherData, err := cbor.DumpObject(vd)
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if err != nil {
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return nil, err
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}
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// setup payments
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total := types.BigMul(price, types.NewInt(blocksDuration))
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// TODO: at least ping the miner before creating paych / locking the money
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extra := &types.ModVerifyParams{
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Actor: miner,
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Method: actors.MAMethods.PaymentVerifyInclusion,
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Data: voucherData,
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}
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head := a.Chain.GetHeaviestTipSet()
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vouchers := deals.VoucherSpec(blocksDuration, total, head.Height(), extra)
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payment, err := a.PaychNewPayment(ctx, self, miner, vouchers)
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if err != nil {
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return nil, err
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}
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proposal := deals.ClientDealProposal{
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Data: data,
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TotalPrice: total,
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Duration: blocksDuration,
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Payment: actors.PaymentInfo{
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PayChActor: payment.Channel,
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Payer: self,
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ChannelMessage: payment.ChannelMessage,
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Vouchers: payment.Vouchers,
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},
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MinerAddress: miner,
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ClientAddress: self,
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MinerID: pid,
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}
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c, err := a.DealClient.Start(ctx, proposal, vd)
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// TODO: send updated voucher with PaymentVerifySector for cheaper validation (validate the sector the miner sent us first!)
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return &c, err
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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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Miner: v.Proposal.MinerAddress,
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PieceRef: v.Proposal.PieceRef,
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CommP: v.Proposal.CommP,
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Size: v.Proposal.Size,
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TotalPrice: v.Proposal.TotalPrice,
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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) 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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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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