lotus/markets/storageadapter/client.go
2021-01-25 14:25:57 +01:00

399 lines
12 KiB
Go

package storageadapter
// this file implements storagemarket.StorageClientNode
import (
"bytes"
"context"
"github.com/filecoin-project/go-address"
cborutil "github.com/filecoin-project/go-cbor-util"
"github.com/ipfs/go-cid"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-fil-markets/shared"
"github.com/filecoin-project/go-fil-markets/storagemarket"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/go-state-types/big"
"github.com/filecoin-project/go-state-types/crypto"
"github.com/filecoin-project/go-state-types/exitcode"
miner2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
market2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/market"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/build"
marketactor "github.com/filecoin-project/lotus/chain/actors/builtin/market"
"github.com/filecoin-project/lotus/chain/events"
"github.com/filecoin-project/lotus/chain/events/state"
"github.com/filecoin-project/lotus/chain/market"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/lib/sigs"
"github.com/filecoin-project/lotus/markets/utils"
"github.com/filecoin-project/lotus/node/impl/full"
)
type ClientNodeAdapter struct {
*clientApi
fundmgr *market.FundManager
ev *events.Events
dsMatcher *dealStateMatcher
scMgr *SectorCommittedManager
}
type clientApi struct {
full.ChainAPI
full.StateAPI
full.MpoolAPI
}
func NewClientNodeAdapter(stateapi full.StateAPI, chain full.ChainAPI, mpool full.MpoolAPI, fundmgr *market.FundManager) storagemarket.StorageClientNode {
capi := &clientApi{chain, stateapi, mpool}
ev := events.NewEvents(context.TODO(), capi)
a := &ClientNodeAdapter{
clientApi: capi,
fundmgr: fundmgr,
ev: ev,
dsMatcher: newDealStateMatcher(state.NewStatePredicates(state.WrapFastAPI(capi))),
}
a.scMgr = NewSectorCommittedManager(ev, a, &apiWrapper{api: capi})
return a
}
func (c *ClientNodeAdapter) ListStorageProviders(ctx context.Context, encodedTs shared.TipSetToken) ([]*storagemarket.StorageProviderInfo, error) {
tsk, err := types.TipSetKeyFromBytes(encodedTs)
if err != nil {
return nil, err
}
addresses, err := c.StateListMiners(ctx, tsk)
if err != nil {
return nil, err
}
var out []*storagemarket.StorageProviderInfo
for _, addr := range addresses {
mi, err := c.GetMinerInfo(ctx, addr, encodedTs)
if err != nil {
return nil, err
}
out = append(out, mi)
}
return out, nil
}
func (c *ClientNodeAdapter) VerifySignature(ctx context.Context, sig crypto.Signature, addr address.Address, input []byte, encodedTs shared.TipSetToken) (bool, error) {
addr, err := c.StateAccountKey(ctx, addr, types.EmptyTSK)
if err != nil {
return false, err
}
err = sigs.Verify(&sig, addr, input)
return err == nil, err
}
// Adds funds with the StorageMinerActor for a storage participant. Used by both providers and clients.
func (c *ClientNodeAdapter) AddFunds(ctx context.Context, addr address.Address, amount abi.TokenAmount) (cid.Cid, error) {
// (Provider Node API)
smsg, err := c.MpoolPushMessage(ctx, &types.Message{
To: miner2.StorageMarketActorAddr,
From: addr,
Value: amount,
Method: miner2.MethodsMarket.AddBalance,
}, nil)
if err != nil {
return cid.Undef, err
}
return smsg.Cid(), nil
}
func (c *ClientNodeAdapter) ReserveFunds(ctx context.Context, wallet, addr address.Address, amt abi.TokenAmount) (cid.Cid, error) {
return c.fundmgr.Reserve(ctx, wallet, addr, amt)
}
func (c *ClientNodeAdapter) ReleaseFunds(ctx context.Context, addr address.Address, amt abi.TokenAmount) error {
return c.fundmgr.Release(addr, amt)
}
func (c *ClientNodeAdapter) GetBalance(ctx context.Context, addr address.Address, encodedTs shared.TipSetToken) (storagemarket.Balance, error) {
tsk, err := types.TipSetKeyFromBytes(encodedTs)
if err != nil {
return storagemarket.Balance{}, err
}
bal, err := c.StateMarketBalance(ctx, addr, tsk)
if err != nil {
return storagemarket.Balance{}, err
}
return utils.ToSharedBalance(bal), nil
}
// ValidatePublishedDeal validates that the provided deal has appeared on chain and references the same ClientDeal
// returns the Deal id if there is no error
// TODO: Don't return deal ID
func (c *ClientNodeAdapter) ValidatePublishedDeal(ctx context.Context, deal storagemarket.ClientDeal) (abi.DealID, error) {
log.Infow("DEAL ACCEPTED!")
pubmsg, err := c.ChainGetMessage(ctx, *deal.PublishMessage)
if err != nil {
return 0, xerrors.Errorf("getting deal publish message: %w", err)
}
mi, err := c.StateMinerInfo(ctx, deal.Proposal.Provider, types.EmptyTSK)
if err != nil {
return 0, xerrors.Errorf("getting miner worker failed: %w", err)
}
fromid, err := c.StateLookupID(ctx, pubmsg.From, types.EmptyTSK)
if err != nil {
return 0, xerrors.Errorf("failed to resolve from msg ID addr: %w", err)
}
if fromid != mi.Worker {
return 0, xerrors.Errorf("deal wasn't published by storage provider: from=%s, provider=%s", pubmsg.From, deal.Proposal.Provider)
}
if pubmsg.To != miner2.StorageMarketActorAddr {
return 0, xerrors.Errorf("deal publish message wasn't set to StorageMarket actor (to=%s)", pubmsg.To)
}
if pubmsg.Method != miner2.MethodsMarket.PublishStorageDeals {
return 0, xerrors.Errorf("deal publish message called incorrect method (method=%s)", pubmsg.Method)
}
var params market2.PublishStorageDealsParams
if err := params.UnmarshalCBOR(bytes.NewReader(pubmsg.Params)); err != nil {
return 0, err
}
dealIdx := -1
for i, storageDeal := range params.Deals {
// TODO: make it less hacky
sd := storageDeal
eq, err := cborutil.Equals(&deal.ClientDealProposal, &sd)
if err != nil {
return 0, err
}
if eq {
dealIdx = i
break
}
}
if dealIdx == -1 {
return 0, xerrors.Errorf("deal publish didn't contain our deal (message cid: %s)", deal.PublishMessage)
}
// TODO: timeout
ret, err := c.StateWaitMsg(ctx, *deal.PublishMessage, build.MessageConfidence)
if err != nil {
return 0, xerrors.Errorf("waiting for deal publish message: %w", err)
}
if ret.Receipt.ExitCode != 0 {
return 0, xerrors.Errorf("deal publish failed: exit=%d", ret.Receipt.ExitCode)
}
var res market2.PublishStorageDealsReturn
if err := res.UnmarshalCBOR(bytes.NewReader(ret.Receipt.Return)); err != nil {
return 0, err
}
return res.IDs[dealIdx], nil
}
const clientOverestimation = 2
func (c *ClientNodeAdapter) DealProviderCollateralBounds(ctx context.Context, size abi.PaddedPieceSize, isVerified bool) (abi.TokenAmount, abi.TokenAmount, error) {
bounds, err := c.StateDealProviderCollateralBounds(ctx, size, isVerified, types.EmptyTSK)
if err != nil {
return abi.TokenAmount{}, abi.TokenAmount{}, err
}
return big.Mul(bounds.Min, big.NewInt(clientOverestimation)), bounds.Max, nil
}
// TODO: Remove dealID parameter, change publishCid to be cid.Cid (instead of pointer)
func (c *ClientNodeAdapter) OnDealSectorPreCommitted(ctx context.Context, provider address.Address, dealID abi.DealID, proposal market2.DealProposal, publishCid *cid.Cid, cb storagemarket.DealSectorPreCommittedCallback) error {
return c.scMgr.OnDealSectorPreCommitted(ctx, provider, marketactor.DealProposal(proposal), *publishCid, cb)
}
// TODO: Remove dealID parameter, change publishCid to be cid.Cid (instead of pointer)
func (c *ClientNodeAdapter) OnDealSectorCommitted(ctx context.Context, provider address.Address, dealID abi.DealID, sectorNumber abi.SectorNumber, proposal market2.DealProposal, publishCid *cid.Cid, cb storagemarket.DealSectorCommittedCallback) error {
return c.scMgr.OnDealSectorCommitted(ctx, provider, sectorNumber, marketactor.DealProposal(proposal), *publishCid, cb)
}
// TODO: Replace dealID parameter with DealProposal
func (c *ClientNodeAdapter) OnDealExpiredOrSlashed(ctx context.Context, dealID abi.DealID, onDealExpired storagemarket.DealExpiredCallback, onDealSlashed storagemarket.DealSlashedCallback) error {
head, err := c.ChainHead(ctx)
if err != nil {
return xerrors.Errorf("client: failed to get chain head: %w", err)
}
sd, err := c.StateMarketStorageDeal(ctx, dealID, head.Key())
if err != nil {
return xerrors.Errorf("client: failed to look up deal %d on chain: %w", dealID, err)
}
// Called immediately to check if the deal has already expired or been slashed
checkFunc := func(ts *types.TipSet) (done bool, more bool, err error) {
if ts == nil {
// keep listening for events
return false, true, nil
}
// Check if the deal has already expired
if sd.Proposal.EndEpoch <= ts.Height() {
onDealExpired(nil)
return true, false, nil
}
// If there is no deal assume it's already been slashed
if sd.State.SectorStartEpoch < 0 {
onDealSlashed(ts.Height(), nil)
return true, false, nil
}
// No events have occurred yet, so return
// done: false, more: true (keep listening for events)
return false, true, nil
}
// Called when there was a match against the state change we're looking for
// and the chain has advanced to the confidence height
stateChanged := func(ts *types.TipSet, ts2 *types.TipSet, states events.StateChange, h abi.ChainEpoch) (more bool, err error) {
// Check if the deal has already expired
if ts2 == nil || sd.Proposal.EndEpoch <= ts2.Height() {
onDealExpired(nil)
return false, nil
}
// Timeout waiting for state change
if states == nil {
log.Error("timed out waiting for deal expiry")
return false, nil
}
changedDeals, ok := states.(state.ChangedDeals)
if !ok {
panic("Expected state.ChangedDeals")
}
deal, ok := changedDeals[dealID]
if !ok {
// No change to deal
return true, nil
}
// Deal was slashed
if deal.To == nil {
onDealSlashed(ts2.Height(), nil)
return false, nil
}
return true, nil
}
// Called when there was a chain reorg and the state change was reverted
revert := func(ctx context.Context, ts *types.TipSet) error {
// TODO: Is it ok to just ignore this?
log.Warn("deal state reverted; TODO: actually handle this!")
return nil
}
// Watch for state changes to the deal
match := c.dsMatcher.matcher(ctx, dealID)
// Wait until after the end epoch for the deal and then timeout
timeout := (sd.Proposal.EndEpoch - head.Height()) + 1
if err := c.ev.StateChanged(checkFunc, stateChanged, revert, int(build.MessageConfidence)+1, timeout, match); err != nil {
return xerrors.Errorf("failed to set up state changed handler: %w", err)
}
return nil
}
func (c *ClientNodeAdapter) SignProposal(ctx context.Context, signer address.Address, proposal market2.DealProposal) (*market2.ClientDealProposal, error) {
// TODO: output spec signed proposal
buf, err := cborutil.Dump(&proposal)
if err != nil {
return nil, err
}
signer, err = c.StateAccountKey(ctx, signer, types.EmptyTSK)
if err != nil {
return nil, err
}
sig, err := c.Wallet.WalletSign(ctx, signer, buf, api.MsgMeta{
Type: api.MTDealProposal,
})
if err != nil {
return nil, err
}
return &market2.ClientDealProposal{
Proposal: proposal,
ClientSignature: *sig,
}, nil
}
func (c *ClientNodeAdapter) GetDefaultWalletAddress(ctx context.Context) (address.Address, error) {
addr, err := c.DefWallet.GetDefault()
return addr, err
}
func (c *ClientNodeAdapter) GetChainHead(ctx context.Context) (shared.TipSetToken, abi.ChainEpoch, error) {
head, err := c.ChainHead(ctx)
if err != nil {
return nil, 0, err
}
return head.Key().Bytes(), head.Height(), nil
}
func (c *ClientNodeAdapter) WaitForMessage(ctx context.Context, mcid cid.Cid, cb func(code exitcode.ExitCode, bytes []byte, finalCid cid.Cid, err error) error) error {
receipt, err := c.StateWaitMsg(ctx, mcid, build.MessageConfidence)
if err != nil {
return cb(0, nil, cid.Undef, err)
}
return cb(receipt.Receipt.ExitCode, receipt.Receipt.Return, receipt.Message, nil)
}
func (c *ClientNodeAdapter) GetMinerInfo(ctx context.Context, addr address.Address, encodedTs shared.TipSetToken) (*storagemarket.StorageProviderInfo, error) {
tsk, err := types.TipSetKeyFromBytes(encodedTs)
if err != nil {
return nil, err
}
mi, err := c.StateMinerInfo(ctx, addr, tsk)
if err != nil {
return nil, err
}
out := utils.NewStorageProviderInfo(addr, mi.Worker, mi.SectorSize, *mi.PeerId, mi.Multiaddrs)
return &out, nil
}
func (c *ClientNodeAdapter) SignBytes(ctx context.Context, signer address.Address, b []byte) (*crypto.Signature, error) {
signer, err := c.StateAccountKey(ctx, signer, types.EmptyTSK)
if err != nil {
return nil, err
}
localSignature, err := c.Wallet.WalletSign(ctx, signer, b, api.MsgMeta{
Type: api.MTUnknown, // TODO: pass type here
})
if err != nil {
return nil, err
}
return localSignature, nil
}
var _ storagemarket.StorageClientNode = &ClientNodeAdapter{}