115 lines
3.2 KiB
Go
115 lines
3.2 KiB
Go
package deals
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import (
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"bytes"
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"errors"
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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/chain/actors"
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"github.com/filecoin-project/lotus/chain/types"
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"github.com/filecoin-project/go-cbor-util"
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"github.com/ipfs/go-cid"
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)
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var (
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// ErrWrongVoucherType means the voucher was not the correct type can validate against
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ErrWrongVoucherType = errors.New("cannot validate voucher type.")
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// ErrNoPushAccepted just means clients do not accept pushes for storage deals
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ErrNoPushAccepted = errors.New("client should not receive data for a storage deal.")
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// ErrNoPullAccepted just means providers do not accept pulls for storage deals
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ErrNoPullAccepted = errors.New("provider should not send data for a storage deal.")
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// ErrNoDeal means no active deal was found for this vouchers proposal cid
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ErrNoDeal = errors.New("no deal found for this proposal.")
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// ErrWrongPeer means that the other peer for this data transfer request does not match
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// the other peer for the deal
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ErrWrongPeer = errors.New("data Transfer peer id and Deal peer id do not match.")
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// ErrWrongPiece means that the pieceref for this data transfer request does not match
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// the one specified in the deal
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ErrWrongPiece = errors.New("base CID for deal does not match CID for piece.")
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// ErrInacceptableDealState means the deal for this transfer is not in a deal state
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// where transfer can be performed
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ErrInacceptableDealState = errors.New("deal is not a in a state where deals are accepted.")
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// DataTransferStates are the states in which it would make sense to actually start a data transfer
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DataTransferStates = []api.DealState{api.DealAccepted, api.DealUnknown}
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)
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const DealProtocolID = "/fil/storage/mk/1.0.1"
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const AskProtocolID = "/fil/storage/ask/1.0.1"
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type Proposal struct {
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DealProposal *actors.StorageDealProposal
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Piece cid.Cid // Used for retrieving from the client
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}
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type Response struct {
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State api.DealState
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// DealProposalRejected
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Message string
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Proposal cid.Cid
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// DealAccepted
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StorageDealSubmission *types.SignedMessage
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}
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// TODO: Do we actually need this to be signed?
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type SignedResponse struct {
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Response Response
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Signature *types.Signature
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}
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func (r *SignedResponse) Verify(addr address.Address) error {
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b, err := cborutil.Dump(&r.Response)
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if err != nil {
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return err
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}
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return r.Signature.Verify(addr, b)
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}
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type AskRequest struct {
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Miner address.Address
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}
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type AskResponse struct {
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Ask *types.SignedStorageAsk
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}
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// StorageDataTransferVoucher is the voucher type for data transfers
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// used by the storage market
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type StorageDataTransferVoucher struct {
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Proposal cid.Cid
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DealID uint64
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}
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// ToBytes converts the StorageDataTransferVoucher to raw bytes
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func (dv *StorageDataTransferVoucher) ToBytes() ([]byte, error) {
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var buf bytes.Buffer
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err := dv.MarshalCBOR(&buf)
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if err != nil {
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return nil, err
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}
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return buf.Bytes(), nil
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}
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// FromBytes converts the StorageDataTransferVoucher to raw bytes
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func (dv *StorageDataTransferVoucher) FromBytes(raw []byte) error {
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r := bytes.NewReader(raw)
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return dv.UnmarshalCBOR(r)
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}
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// Identifier is the unique string identifier for a StorageDataTransferVoucher
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func (dv *StorageDataTransferVoucher) Identifier() string {
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return "StorageDataTransferVoucher"
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}
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