lotus/chain/deals/types.go
hannahhoward da4528932a feat(storagemarket): initial extraction
Types for storage market

Modify deals.Provider to implement storagemarket.StorageProvider

Inject storagemarket.StorageProvider

Storage Provider interfaces

Storage Client interfaces

Add ValidatePublishedDeal to ClientNodeAdapter

Remove FundManager from client

Remove Wallet from client

Remove StateManager, Events, Wallet from client

Rebasing

- Copy types.BigInt, use TokenAmount/BigInt for token amounts
- Remove auto-imported log package
- Move `checkAskSignature` to a client file.
- Plumb contexts through

fix(storagemarket): use publish cids

Switch back to publish message cids to reduce the dependency surface area
2020-01-10 03:29:46 +01:00

113 lines
3.1 KiB
Go

package deals
import (
"bytes"
"errors"
"github.com/ipfs/go-cid"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-cbor-util"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/chain/types"
)
var (
// ErrWrongVoucherType means the voucher was not the correct type can validate against
ErrWrongVoucherType = errors.New("cannot validate voucher type.")
// ErrNoPushAccepted just means clients do not accept pushes for storage deals
ErrNoPushAccepted = errors.New("client should not receive data for a storage deal.")
// ErrNoPullAccepted just means providers do not accept pulls for storage deals
ErrNoPullAccepted = errors.New("provider should not send data for a storage deal.")
// ErrNoDeal means no active deal was found for this vouchers proposal cid
ErrNoDeal = errors.New("no deal found for this proposal.")
// ErrWrongPeer means that the other peer for this data transfer request does not match
// the other peer for the deal
ErrWrongPeer = errors.New("data Transfer peer id and Deal peer id do not match.")
// ErrWrongPiece means that the pieceref for this data transfer request does not match
// the one specified in the deal
ErrWrongPiece = errors.New("base CID for deal does not match CID for piece.")
// ErrInacceptableDealState means the deal for this transfer is not in a deal state
// where transfer can be performed
ErrInacceptableDealState = errors.New("deal is not a in a state where deals are accepted.")
// DataTransferStates are the states in which it would make sense to actually start a data transfer
DataTransferStates = []api.DealState{api.DealAccepted, api.DealUnknown}
)
type Proposal struct {
DealProposal *actors.StorageDealProposal
Piece cid.Cid // Used for retrieving from the client
}
type Response struct {
State api.DealState
// DealProposalRejected
Message string
Proposal cid.Cid
// DealAccepted
PublishMessage *cid.Cid
}
// TODO: Do we actually need this to be signed?
type SignedResponse struct {
Response Response
Signature *types.Signature
}
func (r *SignedResponse) Verify(addr address.Address) error {
b, err := cborutil.Dump(&r.Response)
if err != nil {
return err
}
return r.Signature.Verify(addr, b)
}
type AskRequest struct {
Miner address.Address
}
type AskResponse struct {
Ask *types.SignedStorageAsk
}
// StorageDataTransferVoucher is the voucher type for data transfers
// used by the storage market
type StorageDataTransferVoucher struct {
Proposal cid.Cid
DealID uint64
}
// ToBytes converts the StorageDataTransferVoucher to raw bytes
func (dv *StorageDataTransferVoucher) ToBytes() ([]byte, error) {
var buf bytes.Buffer
err := dv.MarshalCBOR(&buf)
if err != nil {
return nil, err
}
return buf.Bytes(), nil
}
// FromBytes converts the StorageDataTransferVoucher to raw bytes
func (dv *StorageDataTransferVoucher) FromBytes(raw []byte) error {
r := bytes.NewReader(raw)
return dv.UnmarshalCBOR(r)
}
// Type is the unique string identifier for a StorageDataTransferVoucher
func (dv *StorageDataTransferVoucher) Type() string {
return "StorageDataTransferVoucher"
}