101 lines
2.2 KiB
Go
101 lines
2.2 KiB
Go
package deals
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import (
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"context"
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files "github.com/ipfs/go-ipfs-files"
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"github.com/ipfs/go-merkledag"
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unixfile "github.com/ipfs/go-unixfs/file"
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"golang.org/x/xerrors"
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)
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type handlerFunc func(ctx context.Context, deal MinerDeal) error
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func (h *Handler) handle(ctx context.Context, deal MinerDeal, cb handlerFunc, next DealState) {
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go func() {
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err := cb(ctx, deal)
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select {
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case h.updated <- dealUpdate{
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newState: next,
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id: deal.ProposalCid,
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err: err,
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}:
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case <-h.stop:
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}
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}()
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}
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// ACCEPTED
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func (h *Handler) accept(ctx context.Context, deal MinerDeal) error {
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log.Info("acc")
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switch deal.Proposal.SerializationMode {
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//case SerializationRaw:
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//case SerializationIPLD:
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case SerializationUnixFs:
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default:
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return xerrors.Errorf("deal proposal with unsupported serialization: %s", deal.Proposal.SerializationMode)
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}
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log.Info("fetching data for a deal")
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err := h.sendSignedResponse(StorageDealResponse{
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State: Accepted,
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Message: "",
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Proposal: deal.ProposalCid,
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})
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if err != nil {
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return err
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}
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return merkledag.FetchGraph(ctx, deal.Ref, h.dag)
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}
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// STAGED
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func (h *Handler) staged(ctx context.Context, deal MinerDeal) error {
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err := h.sendSignedResponse(StorageDealResponse{
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State: Staged,
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Message: "",
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Proposal: deal.ProposalCid,
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})
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if err != nil {
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log.Warnf("Sending deal response failed: %s", err)
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}
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root, err := h.dag.Get(ctx, deal.Ref)
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if err != nil {
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return xerrors.Errorf("failed to get file root for deal: %s", err)
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}
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// TODO: abstract this away into ReadSizeCloser + implement different modes
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n, err := unixfile.NewUnixfsFile(ctx, h.dag, root)
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if err != nil {
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return xerrors.Errorf("cannot open unixfs file: %s", err)
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}
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uf, ok := n.(files.File)
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if !ok {
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// we probably got directory, unsupported for now
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return xerrors.Errorf("unsupported unixfs type")
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}
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size, err := uf.Size()
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if err != nil {
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return xerrors.Errorf("failed to get file size: %s", err)
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}
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var sectorID uint64
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err = withTemp(uf, func(f string) (err error) {
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sectorID, err = h.sb.AddPiece(deal.Proposal.PieceRef, uint64(size), f)
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return err
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})
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if err != nil {
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return xerrors.Errorf("AddPiece failed: %s", err)
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}
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log.Warnf("New Sector: %d", sectorID)
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return nil
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}
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// SEALING
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