lotus/node/impl/client/client.go
2021-10-05 18:16:14 +02:00

1408 lines
42 KiB
Go

package client
import (
"bufio"
"bytes"
"context"
"fmt"
"io"
"os"
"sort"
"time"
bstore "github.com/ipfs/go-ipfs-blockstore"
unixfile "github.com/ipfs/go-unixfs/file"
"github.com/ipld/go-car"
carv2 "github.com/ipld/go-car/v2"
carv2bs "github.com/ipld/go-car/v2/blockstore"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-padreader"
"github.com/filecoin-project/go-state-types/big"
"github.com/filecoin-project/go-state-types/dline"
"github.com/ipfs/go-blockservice"
"github.com/ipfs/go-cid"
offline "github.com/ipfs/go-ipfs-exchange-offline"
files "github.com/ipfs/go-ipfs-files"
logging "github.com/ipfs/go-log/v2"
"github.com/ipfs/go-merkledag"
"github.com/ipld/go-ipld-prime"
cidlink "github.com/ipld/go-ipld-prime/linking/cid"
basicnode "github.com/ipld/go-ipld-prime/node/basic"
"github.com/ipld/go-ipld-prime/traversal"
"github.com/ipld/go-ipld-prime/traversal/selector"
"github.com/ipld/go-ipld-prime/traversal/selector/builder"
textselector "github.com/ipld/go-ipld-selector-text-lite"
"github.com/libp2p/go-libp2p-core/host"
"github.com/libp2p/go-libp2p-core/peer"
"github.com/multiformats/go-multibase"
mh "github.com/multiformats/go-multihash"
"go.uber.org/fx"
"github.com/filecoin-project/go-address"
cborutil "github.com/filecoin-project/go-cbor-util"
"github.com/filecoin-project/go-commp-utils/ffiwrapper"
"github.com/filecoin-project/go-commp-utils/writer"
datatransfer "github.com/filecoin-project/go-data-transfer"
"github.com/filecoin-project/go-fil-markets/discovery"
rm "github.com/filecoin-project/go-fil-markets/retrievalmarket"
"github.com/filecoin-project/go-fil-markets/shared"
"github.com/filecoin-project/go-fil-markets/storagemarket"
"github.com/filecoin-project/go-fil-markets/storagemarket/network"
"github.com/filecoin-project/go-fil-markets/stores"
"github.com/filecoin-project/lotus/markets/retrievaladapter"
"github.com/filecoin-project/lotus/markets/storageadapter"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/specs-actors/v3/actors/builtin/market"
marketevents "github.com/filecoin-project/lotus/markets/loggers"
"github.com/filecoin-project/lotus/node/config"
"github.com/filecoin-project/lotus/node/repo/imports"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
"github.com/filecoin-project/lotus/chain/store"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/markets/utils"
"github.com/filecoin-project/lotus/node/impl/full"
"github.com/filecoin-project/lotus/node/impl/paych"
"github.com/filecoin-project/lotus/node/modules/dtypes"
"github.com/filecoin-project/lotus/node/repo"
)
var log = logging.Logger("client")
var DefaultHashFunction = uint64(mh.BLAKE2B_MIN + 31)
// 8 days ~= SealDuration + PreCommit + MaxProveCommitDuration + 8 hour buffer
const dealStartBufferHours uint64 = 8 * 24
const DefaultDAGStoreDir = "dagstore"
type API struct {
fx.In
full.ChainAPI
full.WalletAPI
paych.PaychAPI
full.StateAPI
SMDealClient storagemarket.StorageClient
RetDiscovery discovery.PeerResolver
Retrieval rm.RetrievalClient
Chain *store.ChainStore
// accessors for imports and retrievals.
Imports dtypes.ClientImportMgr
StorageBlockstoreAccessor storagemarket.BlockstoreAccessor
RtvlBlockstoreAccessor rm.BlockstoreAccessor
DataTransfer dtypes.ClientDataTransfer
Host host.Host
Repo repo.LockedRepo
}
func calcDealExpiration(minDuration uint64, md *dline.Info, startEpoch abi.ChainEpoch) abi.ChainEpoch {
// Make sure we give some time for the miner to seal
minExp := startEpoch + abi.ChainEpoch(minDuration)
// Align on miners ProvingPeriodBoundary
exp := minExp + md.WPoStProvingPeriod - (minExp % md.WPoStProvingPeriod) + (md.PeriodStart % md.WPoStProvingPeriod) - 1
// Should only be possible for miners created around genesis
for exp < minExp {
exp += md.WPoStProvingPeriod
}
return exp
}
// importManager converts the injected type to the required type.
func (a *API) importManager() *imports.Manager {
return a.Imports
}
func (a *API) ClientStartDeal(ctx context.Context, params *api.StartDealParams) (*cid.Cid, error) {
return a.dealStarter(ctx, params, false)
}
func (a *API) ClientStatelessDeal(ctx context.Context, params *api.StartDealParams) (*cid.Cid, error) {
return a.dealStarter(ctx, params, true)
}
func (a *API) dealStarter(ctx context.Context, params *api.StartDealParams, isStateless bool) (*cid.Cid, error) {
if isStateless {
if params.Data.TransferType != storagemarket.TTManual {
return nil, xerrors.Errorf("invalid transfer type %s for stateless storage deal", params.Data.TransferType)
}
if !params.EpochPrice.IsZero() {
return nil, xerrors.New("stateless storage deals can only be initiated with storage price of 0")
}
} else if params.Data.TransferType == storagemarket.TTGraphsync {
bs, onDone, err := a.dealBlockstore(params.Data.Root)
if err != nil {
return nil, xerrors.Errorf("failed to find blockstore for root CID: %w", err)
}
if has, err := bs.Has(params.Data.Root); err != nil {
return nil, xerrors.Errorf("failed to query blockstore for root CID: %w", err)
} else if !has {
return nil, xerrors.Errorf("failed to find root CID in blockstore: %w", err)
}
onDone()
}
walletKey, err := a.StateAccountKey(ctx, params.Wallet, types.EmptyTSK)
if err != nil {
return nil, xerrors.Errorf("failed resolving params.Wallet addr (%s): %w", params.Wallet, err)
}
exist, err := a.WalletHas(ctx, walletKey)
if err != nil {
return nil, xerrors.Errorf("failed getting addr from wallet (%s): %w", params.Wallet, err)
}
if !exist {
return nil, xerrors.Errorf("provided address doesn't exist in wallet")
}
mi, err := a.StateMinerInfo(ctx, params.Miner, types.EmptyTSK)
if err != nil {
return nil, xerrors.Errorf("failed getting peer ID: %w", err)
}
md, err := a.StateMinerProvingDeadline(ctx, params.Miner, types.EmptyTSK)
if err != nil {
return nil, xerrors.Errorf("failed getting miner's deadline info: %w", err)
}
if uint64(params.Data.PieceSize.Padded()) > uint64(mi.SectorSize) {
return nil, xerrors.New("data doesn't fit in a sector")
}
dealStart := params.DealStartEpoch
if dealStart <= 0 { // unset, or explicitly 'epoch undefined'
ts, err := a.ChainHead(ctx)
if err != nil {
return nil, xerrors.Errorf("failed getting chain height: %w", err)
}
blocksPerHour := 60 * 60 / build.BlockDelaySecs
dealStart = ts.Height() + abi.ChainEpoch(dealStartBufferHours*blocksPerHour) // TODO: Get this from storage ask
}
networkVersion, err := a.StateNetworkVersion(ctx, types.EmptyTSK)
if err != nil {
return nil, xerrors.Errorf("failed to get network version: %w", err)
}
st, err := miner.PreferredSealProofTypeFromWindowPoStType(networkVersion, mi.WindowPoStProofType)
if err != nil {
return nil, xerrors.Errorf("failed to get seal proof type: %w", err)
}
// regular flow
if !isStateless {
providerInfo := utils.NewStorageProviderInfo(params.Miner, mi.Worker, mi.SectorSize, *mi.PeerId, mi.Multiaddrs)
result, err := a.SMDealClient.ProposeStorageDeal(ctx, storagemarket.ProposeStorageDealParams{
Addr: params.Wallet,
Info: &providerInfo,
Data: params.Data,
StartEpoch: dealStart,
EndEpoch: calcDealExpiration(params.MinBlocksDuration, md, dealStart),
Price: params.EpochPrice,
Collateral: params.ProviderCollateral,
Rt: st,
FastRetrieval: params.FastRetrieval,
VerifiedDeal: params.VerifiedDeal,
})
if err != nil {
return nil, xerrors.Errorf("failed to start deal: %w", err)
}
return &result.ProposalCid, nil
}
//
// stateless flow from here to the end
//
dealProposal := &market.DealProposal{
PieceCID: *params.Data.PieceCid,
PieceSize: params.Data.PieceSize.Padded(),
Client: walletKey,
Provider: params.Miner,
Label: params.Data.Root.Encode(multibase.MustNewEncoder('u')),
StartEpoch: dealStart,
EndEpoch: calcDealExpiration(params.MinBlocksDuration, md, dealStart),
StoragePricePerEpoch: big.Zero(),
ProviderCollateral: params.ProviderCollateral,
ClientCollateral: big.Zero(),
VerifiedDeal: params.VerifiedDeal,
}
if dealProposal.ProviderCollateral.IsZero() {
networkCollateral, err := a.StateDealProviderCollateralBounds(ctx, params.Data.PieceSize.Padded(), params.VerifiedDeal, types.EmptyTSK)
if err != nil {
return nil, xerrors.Errorf("failed to determine minimum provider collateral: %w", err)
}
dealProposal.ProviderCollateral = networkCollateral.Min
}
dealProposalSerialized, err := cborutil.Dump(dealProposal)
if err != nil {
return nil, xerrors.Errorf("failed to serialize deal proposal: %w", err)
}
dealProposalSig, err := a.WalletSign(ctx, walletKey, dealProposalSerialized)
if err != nil {
return nil, xerrors.Errorf("failed to sign proposal : %w", err)
}
dealProposalSigned := &market.ClientDealProposal{
Proposal: *dealProposal,
ClientSignature: *dealProposalSig,
}
dStream, err := network.NewFromLibp2pHost(a.Host,
// params duplicated from .../node/modules/client.go
// https://github.com/filecoin-project/lotus/pull/5961#discussion_r629768011
network.RetryParameters(time.Second, 5*time.Minute, 15, 5),
).NewDealStream(ctx, *mi.PeerId)
if err != nil {
return nil, xerrors.Errorf("opening dealstream to %s/%s failed: %w", params.Miner, *mi.PeerId, err)
}
if err = dStream.WriteDealProposal(network.Proposal{
FastRetrieval: true,
DealProposal: dealProposalSigned,
Piece: &storagemarket.DataRef{
TransferType: storagemarket.TTManual,
Root: params.Data.Root,
PieceCid: params.Data.PieceCid,
PieceSize: params.Data.PieceSize,
},
}); err != nil {
return nil, xerrors.Errorf("sending deal proposal failed: %w", err)
}
resp, _, err := dStream.ReadDealResponse()
if err != nil {
return nil, xerrors.Errorf("reading proposal response failed: %w", err)
}
dealProposalIpld, err := cborutil.AsIpld(dealProposalSigned)
if err != nil {
return nil, xerrors.Errorf("serializing proposal node failed: %w", err)
}
if !dealProposalIpld.Cid().Equals(resp.Response.Proposal) {
return nil, xerrors.Errorf("provider returned proposal cid %s but we expected %s", resp.Response.Proposal, dealProposalIpld.Cid())
}
if resp.Response.State != storagemarket.StorageDealWaitingForData {
return nil, xerrors.Errorf("provider returned unexpected state %d for proposal %s, with message: %s", resp.Response.State, resp.Response.Proposal, resp.Response.Message)
}
return &resp.Response.Proposal, nil
}
func (a *API) ClientListDeals(ctx context.Context) ([]api.DealInfo, error) {
deals, err := a.SMDealClient.ListLocalDeals(ctx)
if err != nil {
return nil, err
}
// Get a map of transfer ID => DataTransfer
dataTransfersByID, err := a.transfersByID(ctx)
if err != nil {
return nil, err
}
out := make([]api.DealInfo, len(deals))
for k, v := range deals {
// Find the data transfer associated with this deal
var transferCh *api.DataTransferChannel
if v.TransferChannelID != nil {
if ch, ok := dataTransfersByID[*v.TransferChannelID]; ok {
transferCh = &ch
}
}
out[k] = a.newDealInfoWithTransfer(transferCh, v)
}
return out, nil
}
func (a *API) transfersByID(ctx context.Context) (map[datatransfer.ChannelID]api.DataTransferChannel, error) {
inProgressChannels, err := a.DataTransfer.InProgressChannels(ctx)
if err != nil {
return nil, err
}
dataTransfersByID := make(map[datatransfer.ChannelID]api.DataTransferChannel, len(inProgressChannels))
for id, channelState := range inProgressChannels {
ch := api.NewDataTransferChannel(a.Host.ID(), channelState)
dataTransfersByID[id] = ch
}
return dataTransfersByID, nil
}
func (a *API) ClientGetDealInfo(ctx context.Context, d cid.Cid) (*api.DealInfo, error) {
v, err := a.SMDealClient.GetLocalDeal(ctx, d)
if err != nil {
return nil, err
}
di := a.newDealInfo(ctx, v)
return &di, nil
}
func (a *API) ClientGetDealUpdates(ctx context.Context) (<-chan api.DealInfo, error) {
updates := make(chan api.DealInfo)
unsub := a.SMDealClient.SubscribeToEvents(func(_ storagemarket.ClientEvent, deal storagemarket.ClientDeal) {
updates <- a.newDealInfo(ctx, deal)
})
go func() {
defer unsub()
<-ctx.Done()
}()
return updates, nil
}
func (a *API) newDealInfo(ctx context.Context, v storagemarket.ClientDeal) api.DealInfo {
// Find the data transfer associated with this deal
var transferCh *api.DataTransferChannel
if v.TransferChannelID != nil {
state, err := a.DataTransfer.ChannelState(ctx, *v.TransferChannelID)
// Note: If there was an error just ignore it, as the data transfer may
// be not found if it's no longer active
if err == nil {
ch := api.NewDataTransferChannel(a.Host.ID(), state)
ch.Stages = state.Stages()
transferCh = &ch
}
}
di := a.newDealInfoWithTransfer(transferCh, v)
di.DealStages = v.DealStages
return di
}
func (a *API) newDealInfoWithTransfer(transferCh *api.DataTransferChannel, v storagemarket.ClientDeal) api.DealInfo {
return api.DealInfo{
ProposalCid: v.ProposalCid,
DataRef: v.DataRef,
State: v.State,
Message: v.Message,
Provider: v.Proposal.Provider,
PieceCID: v.Proposal.PieceCID,
Size: uint64(v.Proposal.PieceSize.Unpadded()),
PricePerEpoch: v.Proposal.StoragePricePerEpoch,
Duration: uint64(v.Proposal.Duration()),
DealID: v.DealID,
CreationTime: v.CreationTime.Time(),
Verified: v.Proposal.VerifiedDeal,
TransferChannelID: v.TransferChannelID,
DataTransfer: transferCh,
}
}
func (a *API) ClientHasLocal(_ context.Context, root cid.Cid) (bool, error) {
_, onDone, err := a.dealBlockstore(root)
if err != nil {
return false, err
}
onDone()
return true, nil
}
func (a *API) ClientFindData(ctx context.Context, root cid.Cid, piece *cid.Cid) ([]api.QueryOffer, error) {
peers, err := a.RetDiscovery.GetPeers(root)
if err != nil {
return nil, err
}
out := make([]api.QueryOffer, 0, len(peers))
for _, p := range peers {
if piece != nil && !piece.Equals(*p.PieceCID) {
continue
}
// do not rely on local data with respect to peer id
// fetch an up-to-date miner peer id from chain
mi, err := a.StateMinerInfo(ctx, p.Address, types.EmptyTSK)
if err != nil {
return nil, err
}
pp := rm.RetrievalPeer{
Address: p.Address,
ID: *mi.PeerId,
}
out = append(out, a.makeRetrievalQuery(ctx, pp, root, piece, rm.QueryParams{}))
}
return out, nil
}
func (a *API) ClientMinerQueryOffer(ctx context.Context, miner address.Address, root cid.Cid, piece *cid.Cid) (api.QueryOffer, error) {
mi, err := a.StateMinerInfo(ctx, miner, types.EmptyTSK)
if err != nil {
return api.QueryOffer{}, err
}
rp := rm.RetrievalPeer{
Address: miner,
ID: *mi.PeerId,
}
return a.makeRetrievalQuery(ctx, rp, root, piece, rm.QueryParams{}), nil
}
func (a *API) makeRetrievalQuery(ctx context.Context, rp rm.RetrievalPeer, payload cid.Cid, piece *cid.Cid, qp rm.QueryParams) api.QueryOffer {
queryResponse, err := a.Retrieval.Query(ctx, rp, payload, qp)
if err != nil {
return api.QueryOffer{Err: err.Error(), Miner: rp.Address, MinerPeer: rp}
}
var errStr string
switch queryResponse.Status {
case rm.QueryResponseAvailable:
errStr = ""
case rm.QueryResponseUnavailable:
errStr = fmt.Sprintf("retrieval query offer was unavailable: %s", queryResponse.Message)
case rm.QueryResponseError:
errStr = fmt.Sprintf("retrieval query offer errored: %s", queryResponse.Message)
}
return api.QueryOffer{
Root: payload,
Piece: piece,
Size: queryResponse.Size,
MinPrice: queryResponse.PieceRetrievalPrice(),
UnsealPrice: queryResponse.UnsealPrice,
PaymentInterval: queryResponse.MaxPaymentInterval,
PaymentIntervalIncrease: queryResponse.MaxPaymentIntervalIncrease,
Miner: queryResponse.PaymentAddress, // TODO: check
MinerPeer: rp,
Err: errStr,
}
}
func (a *API) ClientImport(ctx context.Context, ref api.FileRef) (res *api.ImportRes, err error) {
var (
imgr = a.importManager()
id imports.ID
root cid.Cid
carPath string
)
id, err = imgr.CreateImport()
if err != nil {
return nil, xerrors.Errorf("failed to create import: %w", err)
}
if ref.IsCAR {
// user gave us a CAR file, use it as-is
// validate that it's either a carv1 or carv2, and has one root.
f, err := os.Open(ref.Path)
if err != nil {
return nil, xerrors.Errorf("failed to open CAR file: %w", err)
}
defer f.Close() //nolint:errcheck
hd, _, err := car.ReadHeader(bufio.NewReader(f))
if err != nil {
return nil, xerrors.Errorf("failed to read CAR header: %w", err)
}
if len(hd.Roots) != 1 {
return nil, xerrors.New("car file can have one and only one header")
}
if hd.Version != 1 && hd.Version != 2 {
return nil, xerrors.Errorf("car version must be 1 or 2, is %d", hd.Version)
}
carPath = ref.Path
root = hd.Roots[0]
} else {
carPath, err = imgr.AllocateCAR(id)
if err != nil {
return nil, xerrors.Errorf("failed to create car path for import: %w", err)
}
// remove the import if something went wrong.
defer func() {
if err != nil {
_ = os.Remove(carPath)
_ = imgr.Remove(id)
}
}()
// perform the unixfs chunking.
root, err = a.createUnixFSFilestore(ctx, ref.Path, carPath)
if err != nil {
return nil, xerrors.Errorf("failed to import file using unixfs: %w", err)
}
}
if err = imgr.AddLabel(id, imports.LSource, "import"); err != nil {
return nil, err
}
if err = imgr.AddLabel(id, imports.LFileName, ref.Path); err != nil {
return nil, err
}
if err = imgr.AddLabel(id, imports.LCARPath, carPath); err != nil {
return nil, err
}
if err = imgr.AddLabel(id, imports.LRootCid, root.String()); err != nil {
return nil, err
}
return &api.ImportRes{
Root: root,
ImportID: id,
}, nil
}
func (a *API) ClientRemoveImport(ctx context.Context, id imports.ID) error {
info, err := a.importManager().Info(id)
if err != nil {
return xerrors.Errorf("failed to get import metadata: %w", err)
}
owner := info.Labels[imports.LCAROwner]
path := info.Labels[imports.LCARPath]
// CARv2 file was not provided by the user, delete it.
if path != "" && owner == imports.CAROwnerImportMgr {
_ = os.Remove(path)
}
return a.importManager().Remove(id)
}
// ClientImportLocal imports a standard file into this node as a UnixFS payload,
// storing it in a CARv2 file. Note that this method is NOT integrated with the
// IPFS blockstore. That is, if client-side IPFS integration is enabled, this
// method won't import the file into that
func (a *API) ClientImportLocal(ctx context.Context, r io.Reader) (cid.Cid, error) {
file := files.NewReaderFile(r)
// write payload to temp file
id, err := a.importManager().CreateImport()
if err != nil {
return cid.Undef, err
}
if err := a.importManager().AddLabel(id, imports.LSource, "import-local"); err != nil {
return cid.Undef, err
}
path, err := a.importManager().AllocateCAR(id)
if err != nil {
return cid.Undef, err
}
// writing a carv2 requires knowing the root ahead of time, which makes
// streaming cases impossible.
// https://github.com/ipld/go-car/issues/196
// we work around this limitation by informing a placeholder root CID of the
// same length as our unixfs chunking strategy will generate.
// once the DAG is formed and the root is calculated, we overwrite the
// inner carv1 header with the final root.
b, err := unixFSCidBuilder()
if err != nil {
return cid.Undef, err
}
// placeholder payload needs to be larger than inline CID threshold; 256
// bytes is a safe value.
placeholderRoot, err := b.Sum(make([]byte, 256))
if err != nil {
return cid.Undef, xerrors.Errorf("failed to calculate placeholder root: %w", err)
}
bs, err := carv2bs.OpenReadWrite(path, []cid.Cid{placeholderRoot}, carv2bs.UseWholeCIDs(true))
if err != nil {
return cid.Undef, xerrors.Errorf("failed to create carv2 read/write blockstore: %w", err)
}
root, err := buildUnixFS(ctx, file, bs, false)
if err != nil {
return cid.Undef, xerrors.Errorf("failed to build unixfs dag: %w", err)
}
err = bs.Finalize()
if err != nil {
return cid.Undef, xerrors.Errorf("failed to finalize carv2 read/write blockstore: %w", err)
}
// record the root in the import manager.
if err := a.importManager().AddLabel(id, imports.LRootCid, root.String()); err != nil {
return cid.Undef, xerrors.Errorf("failed to record root CID in import manager: %w", err)
}
// now go ahead and overwrite the root in the carv1 header.
reader, err := carv2.OpenReader(path)
if err != nil {
return cid.Undef, xerrors.Errorf("failed to create car reader: %w", err)
}
// save the header offset.
headerOff := reader.Header.DataOffset
// read the old header.
dr := reader.DataReader()
header, err := readHeader(dr)
if err != nil {
return cid.Undef, xerrors.Errorf("failed to read car reader: %w", err)
}
_ = reader.Close() // close the CAR reader.
// write the old header into a buffer.
var oldBuf bytes.Buffer
if err = writeHeader(header, &oldBuf); err != nil {
return cid.Undef, xerrors.Errorf("failed to write header into buffer: %w", err)
}
// replace the root.
header.Roots = []cid.Cid{root}
// write the new header into a buffer.
var newBuf bytes.Buffer
err = writeHeader(header, &newBuf)
if err != nil {
return cid.Undef, xerrors.Errorf("failed to write header into buffer: %w", err)
}
// verify the length matches.
if newBuf.Len() != oldBuf.Len() {
return cid.Undef, xerrors.Errorf("failed to replace carv1 header; length mismatch (old: %d, new: %d)", oldBuf.Len(), newBuf.Len())
}
// open the file again, seek to the header position, and write.
f, err := os.OpenFile(path, os.O_WRONLY, 0755)
if err != nil {
return cid.Undef, xerrors.Errorf("failed to open car: %w", err)
}
defer f.Close() //nolint:errcheck
n, err := f.WriteAt(newBuf.Bytes(), int64(headerOff))
if err != nil {
return cid.Undef, xerrors.Errorf("failed to write new header to car (bytes written: %d): %w", n, err)
}
return root, nil
}
func (a *API) ClientListImports(_ context.Context) ([]api.Import, error) {
ids, err := a.importManager().List()
if err != nil {
return nil, xerrors.Errorf("failed to fetch imports: %w", err)
}
out := make([]api.Import, len(ids))
for i, id := range ids {
info, err := a.importManager().Info(id)
if err != nil {
out[i] = api.Import{
Key: id,
Err: xerrors.Errorf("getting info: %w", err).Error(),
}
continue
}
ai := api.Import{
Key: id,
Source: info.Labels[imports.LSource],
FilePath: info.Labels[imports.LFileName],
CARPath: info.Labels[imports.LCARPath],
}
if info.Labels[imports.LRootCid] != "" {
c, err := cid.Parse(info.Labels[imports.LRootCid])
if err != nil {
ai.Err = err.Error()
} else {
ai.Root = &c
}
}
out[i] = ai
}
return out, nil
}
func (a *API) ClientCancelRetrievalDeal(ctx context.Context, dealID rm.DealID) error {
cerr := make(chan error)
go func() {
err := a.Retrieval.CancelDeal(dealID)
select {
case cerr <- err:
case <-ctx.Done():
}
}()
select {
case err := <-cerr:
if err != nil {
return xerrors.Errorf("failed to cancel retrieval deal: %w", err)
}
return nil
case <-ctx.Done():
return xerrors.Errorf("context timeout while canceling retrieval deal: %w", ctx.Err())
}
}
func (a *API) ClientRetrieve(ctx context.Context, order api.RetrievalOrder, ref *api.FileRef) error {
events := make(chan marketevents.RetrievalEvent)
go a.clientRetrieve(ctx, order, ref, events)
for {
select {
case evt, ok := <-events:
if !ok { // done successfully
return nil
}
if evt.Err != "" {
return xerrors.Errorf("retrieval failed: %s", evt.Err)
}
case <-ctx.Done():
return xerrors.Errorf("retrieval timed out")
}
}
}
func (a *API) ClientRetrieveWithEvents(ctx context.Context, order api.RetrievalOrder, ref *api.FileRef) (<-chan marketevents.RetrievalEvent, error) {
events := make(chan marketevents.RetrievalEvent)
go a.clientRetrieve(ctx, order, ref, events)
return events, nil
}
type retrievalSubscribeEvent struct {
event rm.ClientEvent
state rm.ClientDealState
}
func consumeAllEvents(ctx context.Context, dealID rm.DealID, subscribeEvents chan retrievalSubscribeEvent, events chan marketevents.RetrievalEvent) error {
for {
var subscribeEvent retrievalSubscribeEvent
select {
case <-ctx.Done():
return xerrors.New("Retrieval Timed Out")
case subscribeEvent = <-subscribeEvents:
if subscribeEvent.state.ID != dealID {
// we can't check the deal ID ahead of time because:
// 1. We need to subscribe before retrieving.
// 2. We won't know the deal ID until after retrieving.
continue
}
}
select {
case <-ctx.Done():
return xerrors.New("Retrieval Timed Out")
case events <- marketevents.RetrievalEvent{
Event: subscribeEvent.event,
Status: subscribeEvent.state.Status,
BytesReceived: subscribeEvent.state.TotalReceived,
FundsSpent: subscribeEvent.state.FundsSpent,
}:
}
state := subscribeEvent.state
switch state.Status {
case rm.DealStatusCompleted:
return nil
case rm.DealStatusRejected:
return xerrors.Errorf("Retrieval Proposal Rejected: %s", state.Message)
case rm.DealStatusCancelled:
return xerrors.Errorf("Retrieval was cancelled externally: %s", state.Message)
case
rm.DealStatusDealNotFound,
rm.DealStatusErrored:
return xerrors.Errorf("Retrieval Error: %s", state.Message)
}
}
}
func (a *API) clientRetrieve(ctx context.Context, order api.RetrievalOrder, ref *api.FileRef, events chan marketevents.RetrievalEvent) {
defer close(events)
finish := func(e error) {
if e != nil {
events <- marketevents.RetrievalEvent{Err: e.Error(), FundsSpent: big.Zero()}
}
}
sel := shared.AllSelector()
if order.DatamodelPathSelector != nil {
ssb := builder.NewSelectorSpecBuilder(basicnode.Prototype.Any)
selspec, err := textselector.SelectorSpecFromPath(
*order.DatamodelPathSelector,
// URGH - this is a direct copy from https://github.com/filecoin-project/go-fil-markets/blob/v1.12.0/shared/selectors.go#L10-L16
// Unable to use it because we need the SelectorSpec, and markets exposes just a reified node
ssb.ExploreRecursive(
selector.RecursionLimitNone(),
ssb.ExploreAll(ssb.ExploreRecursiveEdge()),
),
)
if err != nil {
finish(xerrors.Errorf("failed to parse text-selector '%s': %w", *order.DatamodelPathSelector, err))
return
}
sel = selspec.Node()
log.Infof("partial retrieval of datamodel-path-selector %s/*", *order.DatamodelPathSelector)
}
// summary:
// 1. if we're retrieving from an import, FromLocalCAR will be set.
// Skip the retrieval itself, and use the provided car as a blockstore further down
// to extract a CAR or UnixFS export from.
// 2. if we're using an IPFS blockstore for retrieval, retrieve into it,
// then use the virtual blockstore to extract a CAR or UnixFS export from it.
// 3. if we have to retrieve, perform a CARv2 retrieval, then either
// extract the CARv1 (with ExtractV1File) or use it as a blockstore further down.
// this indicates we're proxying to IPFS.
proxyBss, retrieveIntoIPFS := a.RtvlBlockstoreAccessor.(*retrievaladapter.ProxyBlockstoreAccessor)
carBss, retrieveIntoCAR := a.RtvlBlockstoreAccessor.(*retrievaladapter.CARBlockstoreAccessor)
carPath := order.FromLocalCAR
// we actually need to retrieve from the network
if carPath == "" {
if !retrieveIntoIPFS && !retrieveIntoCAR {
// we don't recognize the blockstore accessor.
finish(xerrors.Errorf("unsupported retrieval blockstore accessor"))
return
}
if order.MinerPeer == nil || order.MinerPeer.ID == "" {
mi, err := a.StateMinerInfo(ctx, order.Miner, types.EmptyTSK)
if err != nil {
finish(err)
return
}
order.MinerPeer = &rm.RetrievalPeer{
ID: *mi.PeerId,
Address: order.Miner,
}
}
if order.Total.Int == nil {
finish(xerrors.Errorf("cannot make retrieval deal for null total"))
return
}
if order.Size == 0 {
finish(xerrors.Errorf("cannot make retrieval deal for zero bytes"))
return
}
ppb := types.BigDiv(order.Total, types.NewInt(order.Size))
params, err := rm.NewParamsV1(ppb, order.PaymentInterval, order.PaymentIntervalIncrease, sel, order.Piece, order.UnsealPrice)
if err != nil {
finish(xerrors.Errorf("Error in retrieval params: %s", err))
return
}
// Subscribe to events before retrieving to avoid losing events.
subscribeEvents := make(chan retrievalSubscribeEvent, 1)
subscribeCtx, cancel := context.WithCancel(ctx)
defer cancel()
unsubscribe := a.Retrieval.SubscribeToEvents(func(event rm.ClientEvent, state rm.ClientDealState) {
// We'll check the deal IDs inside consumeAllEvents.
if state.PayloadCID.Equals(order.Root) {
select {
case <-subscribeCtx.Done():
case subscribeEvents <- retrievalSubscribeEvent{event, state}:
}
}
})
id := a.Retrieval.NextID()
id, err = a.Retrieval.Retrieve(
ctx,
id,
order.Root,
params,
order.Total,
*order.MinerPeer,
order.Client,
order.Miner,
)
if err != nil {
unsubscribe()
finish(xerrors.Errorf("Retrieve failed: %w", err))
return
}
err = consumeAllEvents(ctx, id, subscribeEvents, events)
unsubscribe()
if err != nil {
finish(xerrors.Errorf("Retrieve: %w", err))
return
}
if retrieveIntoCAR {
carPath = carBss.PathFor(id)
}
}
if ref == nil {
// If ref is nil, it only fetches the data into the configured blockstore
// (if fetching from network).
finish(nil)
return
}
// determine where did the retrieval go
var retrievalBs bstore.Blockstore
if retrieveIntoIPFS {
retrievalBs = proxyBss.Blockstore
} else {
cbs, err := stores.ReadOnlyFilestore(carPath)
if err != nil {
finish(err)
return
}
defer cbs.Close() //nolint:errcheck
retrievalBs = cbs
}
// Are we outputting a CAR?
if ref.IsCAR {
// not IPFS and we do full selection - just extract the CARv1 from the CARv2 we stored the retrieval in
if !retrieveIntoIPFS && order.DatamodelPathSelector == nil {
finish(carv2.ExtractV1File(carPath, ref.Path))
return
}
// generating a CARv1 from the configured blockstore
f, err := os.OpenFile(ref.Path, os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
finish(err)
return
}
err = car.NewSelectiveCar(
ctx,
retrievalBs,
[]car.Dag{{
Root: order.Root,
Selector: sel,
}},
car.MaxTraversalLinks(config.MaxTraversalLinks),
).Write(f)
if err != nil {
finish(err)
return
}
finish(f.Close())
return
}
// we are extracting a UnixFS file.
ds := merkledag.NewDAGService(blockservice.New(retrievalBs, offline.Exchange(retrievalBs)))
root := order.Root
// if we used a selector - need to find the sub-root the user actually wanted to retrieve
if order.DatamodelPathSelector != nil {
var subRootFound bool
// no err check - we just compiled this before starting, but now we do not wrap a `*`
selspec, _ := textselector.SelectorSpecFromPath(*order.DatamodelPathSelector, nil) //nolint:errcheck
if err := utils.TraverseDag(
ctx,
ds,
root,
selspec.Node(),
func(p traversal.Progress, n ipld.Node, r traversal.VisitReason) error {
if r == traversal.VisitReason_SelectionMatch {
if p.LastBlock.Path.String() != p.Path.String() {
return xerrors.Errorf("unsupported selection path '%s' does not correspond to a block boundary (a.k.a. CID link)", p.Path.String())
}
cidLnk, castOK := p.LastBlock.Link.(cidlink.Link)
if !castOK {
return xerrors.Errorf("cidlink cast unexpectedly failed on '%s'", p.LastBlock.Link.String())
}
root = cidLnk.Cid
subRootFound = true
}
return nil
},
); err != nil {
finish(xerrors.Errorf("error while locating partial retrieval sub-root: %w", err))
return
}
if !subRootFound {
finish(xerrors.Errorf("path selection '%s' does not match a node within %s", *order.DatamodelPathSelector, root))
return
}
}
nd, err := ds.Get(ctx, root)
if err != nil {
finish(xerrors.Errorf("ClientRetrieve: %w", err))
return
}
file, err := unixfile.NewUnixfsFile(ctx, ds, nd)
if err != nil {
finish(xerrors.Errorf("ClientRetrieve: %w", err))
return
}
finish(files.WriteTo(file, ref.Path))
}
func (a *API) ClientListRetrievals(ctx context.Context) ([]api.RetrievalInfo, error) {
deals, err := a.Retrieval.ListDeals()
if err != nil {
return nil, err
}
dataTransfersByID, err := a.transfersByID(ctx)
if err != nil {
return nil, err
}
out := make([]api.RetrievalInfo, 0, len(deals))
for _, v := range deals {
// Find the data transfer associated with this deal
var transferCh *api.DataTransferChannel
if v.ChannelID != nil {
if ch, ok := dataTransfersByID[*v.ChannelID]; ok {
transferCh = &ch
}
}
out = append(out, a.newRetrievalInfoWithTransfer(transferCh, v))
}
sort.Slice(out, func(a, b int) bool {
return out[a].ID < out[b].ID
})
return out, nil
}
func (a *API) ClientGetRetrievalUpdates(ctx context.Context) (<-chan api.RetrievalInfo, error) {
updates := make(chan api.RetrievalInfo)
unsub := a.Retrieval.SubscribeToEvents(func(_ rm.ClientEvent, deal rm.ClientDealState) {
updates <- a.newRetrievalInfo(ctx, deal)
})
go func() {
defer unsub()
<-ctx.Done()
}()
return updates, nil
}
func (a *API) newRetrievalInfoWithTransfer(ch *api.DataTransferChannel, deal rm.ClientDealState) api.RetrievalInfo {
return api.RetrievalInfo{
PayloadCID: deal.PayloadCID,
ID: deal.ID,
PieceCID: deal.PieceCID,
PricePerByte: deal.PricePerByte,
UnsealPrice: deal.UnsealPrice,
Status: deal.Status,
Message: deal.Message,
Provider: deal.Sender,
BytesReceived: deal.TotalReceived,
BytesPaidFor: deal.BytesPaidFor,
TotalPaid: deal.FundsSpent,
TransferChannelID: deal.ChannelID,
DataTransfer: ch,
}
}
func (a *API) newRetrievalInfo(ctx context.Context, v rm.ClientDealState) api.RetrievalInfo {
// Find the data transfer associated with this deal
var transferCh *api.DataTransferChannel
if v.ChannelID != nil {
state, err := a.DataTransfer.ChannelState(ctx, *v.ChannelID)
// Note: If there was an error just ignore it, as the data transfer may
// be not found if it's no longer active
if err == nil {
ch := api.NewDataTransferChannel(a.Host.ID(), state)
ch.Stages = state.Stages()
transferCh = &ch
}
}
return a.newRetrievalInfoWithTransfer(transferCh, v)
}
func (a *API) ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*storagemarket.StorageAsk, error) {
mi, err := a.StateMinerInfo(ctx, miner, types.EmptyTSK)
if err != nil {
return nil, xerrors.Errorf("failed getting miner info: %w", err)
}
info := utils.NewStorageProviderInfo(miner, mi.Worker, mi.SectorSize, p, mi.Multiaddrs)
ask, err := a.SMDealClient.GetAsk(ctx, info)
if err != nil {
return nil, err
}
return ask, nil
}
func (a *API) ClientCalcCommP(ctx context.Context, inpath string) (*api.CommPRet, error) {
// Hard-code the sector type to 32GiBV1_1, because:
// - ffiwrapper.GeneratePieceCIDFromFile requires a RegisteredSealProof
// - commP itself is sector-size independent, with rather low probability of that changing
// ( note how the final rust call is identical for every RegSP type )
// https://github.com/filecoin-project/rust-filecoin-proofs-api/blob/v5.0.0/src/seal.rs#L1040-L1050
//
// IF/WHEN this changes in the future we will have to be able to calculate
// "old style" commP, and thus will need to introduce a version switch or similar
arbitraryProofType := abi.RegisteredSealProof_StackedDrg32GiBV1_1
rdr, err := os.Open(inpath)
if err != nil {
return nil, err
}
defer rdr.Close() //nolint:errcheck
stat, err := rdr.Stat()
if err != nil {
return nil, err
}
// check that the data is a car file; if it's not, retrieval won't work
_, _, err = car.ReadHeader(bufio.NewReader(rdr))
if err != nil {
return nil, xerrors.Errorf("not a car file: %w", err)
}
if _, err := rdr.Seek(0, io.SeekStart); err != nil {
return nil, xerrors.Errorf("seek to start: %w", err)
}
pieceReader, pieceSize := padreader.New(rdr, uint64(stat.Size()))
commP, err := ffiwrapper.GeneratePieceCIDFromFile(arbitraryProofType, pieceReader, pieceSize)
if err != nil {
return nil, xerrors.Errorf("computing commP failed: %w", err)
}
return &api.CommPRet{
Root: commP,
Size: pieceSize,
}, nil
}
type lenWriter int64
func (w *lenWriter) Write(p []byte) (n int, err error) {
*w += lenWriter(len(p))
return len(p), nil
}
func (a *API) ClientDealSize(ctx context.Context, root cid.Cid) (api.DataSize, error) {
bs, onDone, err := a.dealBlockstore(root)
if err != nil {
return api.DataSize{}, err
}
defer onDone()
dag := merkledag.NewDAGService(blockservice.New(bs, offline.Exchange(bs)))
var w lenWriter
err = car.WriteCar(ctx, dag, []cid.Cid{root}, &w)
if err != nil {
return api.DataSize{}, err
}
up := padreader.PaddedSize(uint64(w))
return api.DataSize{
PayloadSize: int64(w),
PieceSize: up.Padded(),
}, nil
}
func (a *API) ClientDealPieceCID(ctx context.Context, root cid.Cid) (api.DataCIDSize, error) {
bs, onDone, err := a.dealBlockstore(root)
if err != nil {
return api.DataCIDSize{}, err
}
defer onDone()
dag := merkledag.NewDAGService(blockservice.New(bs, offline.Exchange(bs)))
w := &writer.Writer{}
bw := bufio.NewWriterSize(w, int(writer.CommPBuf))
err = car.WriteCar(ctx, dag, []cid.Cid{root}, w)
if err != nil {
return api.DataCIDSize{}, err
}
if err := bw.Flush(); err != nil {
return api.DataCIDSize{}, err
}
dataCIDSize, err := w.Sum()
return api.DataCIDSize(dataCIDSize), err
}
func (a *API) ClientGenCar(ctx context.Context, ref api.FileRef, outputPath string) error {
// create a temporary import to represent this job and obtain a staging CAR.
id, err := a.importManager().CreateImport()
if err != nil {
return xerrors.Errorf("failed to create temporary import: %w", err)
}
defer a.importManager().Remove(id) //nolint:errcheck
tmp, err := a.importManager().AllocateCAR(id)
if err != nil {
return xerrors.Errorf("failed to allocate temporary CAR: %w", err)
}
defer os.Remove(tmp) //nolint:errcheck
// generate and import the UnixFS DAG into a filestore (positional reference) CAR.
root, err := a.createUnixFSFilestore(ctx, ref.Path, tmp)
if err != nil {
return xerrors.Errorf("failed to import file using unixfs: %w", err)
}
// open the positional reference CAR as a filestore.
fs, err := stores.ReadOnlyFilestore(tmp)
if err != nil {
return xerrors.Errorf("failed to open filestore from carv2 in path %s: %w", tmp, err)
}
defer fs.Close() //nolint:errcheck
// build a dense deterministic CAR (dense = containing filled leaves)
ssb := builder.NewSelectorSpecBuilder(basicnode.Prototype.Any)
allSelector := ssb.ExploreRecursive(
selector.RecursionLimitNone(),
ssb.ExploreAll(ssb.ExploreRecursiveEdge())).Node()
sc := car.NewSelectiveCar(ctx,
fs,
[]car.Dag{{Root: root, Selector: allSelector}},
car.MaxTraversalLinks(config.MaxTraversalLinks),
)
f, err := os.Create(outputPath)
if err != nil {
return err
}
if err = sc.Write(f); err != nil {
return xerrors.Errorf("failed to write CAR to output file: %w", err)
}
return f.Close()
}
func (a *API) ClientListDataTransfers(ctx context.Context) ([]api.DataTransferChannel, error) {
inProgressChannels, err := a.DataTransfer.InProgressChannels(ctx)
if err != nil {
return nil, err
}
apiChannels := make([]api.DataTransferChannel, 0, len(inProgressChannels))
for _, channelState := range inProgressChannels {
apiChannels = append(apiChannels, api.NewDataTransferChannel(a.Host.ID(), channelState))
}
return apiChannels, nil
}
func (a *API) ClientDataTransferUpdates(ctx context.Context) (<-chan api.DataTransferChannel, error) {
channels := make(chan api.DataTransferChannel)
unsub := a.DataTransfer.SubscribeToEvents(func(evt datatransfer.Event, channelState datatransfer.ChannelState) {
channel := api.NewDataTransferChannel(a.Host.ID(), channelState)
select {
case <-ctx.Done():
case channels <- channel:
}
})
go func() {
defer unsub()
<-ctx.Done()
}()
return channels, nil
}
func (a *API) ClientRestartDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error {
selfPeer := a.Host.ID()
if isInitiator {
return a.DataTransfer.RestartDataTransferChannel(ctx, datatransfer.ChannelID{Initiator: selfPeer, Responder: otherPeer, ID: transferID})
}
return a.DataTransfer.RestartDataTransferChannel(ctx, datatransfer.ChannelID{Initiator: otherPeer, Responder: selfPeer, ID: transferID})
}
func (a *API) ClientCancelDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error {
selfPeer := a.Host.ID()
if isInitiator {
return a.DataTransfer.CloseDataTransferChannel(ctx, datatransfer.ChannelID{Initiator: selfPeer, Responder: otherPeer, ID: transferID})
}
return a.DataTransfer.CloseDataTransferChannel(ctx, datatransfer.ChannelID{Initiator: otherPeer, Responder: selfPeer, ID: transferID})
}
func (a *API) ClientRetrieveTryRestartInsufficientFunds(ctx context.Context, paymentChannel address.Address) error {
return a.Retrieval.TryRestartInsufficientFunds(paymentChannel)
}
func (a *API) ClientGetDealStatus(ctx context.Context, statusCode uint64) (string, error) {
ststr, ok := storagemarket.DealStates[statusCode]
if !ok {
return "", fmt.Errorf("no such deal state %d", statusCode)
}
return ststr, nil
}
// dealBlockstore picks the source blockstore for a storage deal; either the
// IPFS blockstore, or an import CARv2 file. It also returns a function that
// must be called when done.
func (a *API) dealBlockstore(root cid.Cid) (bstore.Blockstore, func(), error) {
switch acc := a.StorageBlockstoreAccessor.(type) {
case *storageadapter.ImportsBlockstoreAccessor:
bs, err := acc.Get(root)
if err != nil {
return nil, nil, xerrors.Errorf("no import found for root %s: %w", root, err)
}
doneFn := func() {
_ = acc.Done(root) //nolint:errcheck
}
return bs, doneFn, nil
case *storageadapter.ProxyBlockstoreAccessor:
return acc.Blockstore, func() {}, nil
default:
return nil, nil, xerrors.Errorf("unsupported blockstore accessor type: %T", acc)
}
}