107 lines
2.5 KiB
Go
107 lines
2.5 KiB
Go
package deals
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import (
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"context"
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"runtime"
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"github.com/filecoin-project/go-lotus/chain/actors"
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"github.com/filecoin-project/go-lotus/chain/address"
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"github.com/filecoin-project/go-lotus/chain/types"
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"github.com/filecoin-project/go-lotus/lib/cborrpc"
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"github.com/ipfs/go-cid"
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cbor "github.com/ipfs/go-ipld-cbor"
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inet "github.com/libp2p/go-libp2p-core/network"
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"golang.org/x/xerrors"
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)
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func (h *Handler) failDeal(id cid.Cid, cerr error) {
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if err := h.deals.End(id); err != nil {
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log.Warnf("deals.End: %s", err)
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}
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if cerr == nil {
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_, f, l, _ := runtime.Caller(1)
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cerr = xerrors.Errorf("unknown error (fail called at %s:%d)", f, l)
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}
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log.Errorf("deal %s failed: %s", id, cerr)
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err := h.sendSignedResponse(StorageDealResponse{
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State: Failed,
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Message: cerr.Error(),
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Proposal: id,
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})
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s, ok := h.conns[id]
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if ok {
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_ = s.Close()
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delete(h.conns, id)
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}
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if err != nil {
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log.Warnf("notifying client about deal failure: %s", err)
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}
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}
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func (h *Handler) readProposal(s inet.Stream) (proposal SignedStorageDealProposal, err error) {
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if err := cborrpc.ReadCborRPC(s, &proposal); err != nil {
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log.Errorw("failed to read proposal message", "error", err)
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return SignedStorageDealProposal{}, err
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}
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// TODO: Validate proposal maybe
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// (and signature, obviously)
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if proposal.Proposal.MinerAddress != h.actor {
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log.Errorf("proposal with wrong MinerAddress: %s", proposal.Proposal.MinerAddress)
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return SignedStorageDealProposal{}, err
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}
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return
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}
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func (h *Handler) sendSignedResponse(resp StorageDealResponse) error {
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s, ok := h.conns[resp.Proposal]
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if !ok {
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return xerrors.New("couldn't send response: not connected")
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}
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msg, err := cbor.DumpObject(&resp)
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if err != nil {
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return xerrors.Errorf("serializing response: %w", err)
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}
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getworker := &types.Message{
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To: h.actor,
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From: h.actor,
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Method: actors.MAMethods.GetWorkerAddr,
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}
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r, err := h.full.StateCall(context.TODO(), getworker, nil)
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if err != nil {
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return xerrors.Errorf("getting worker address: %w", err)
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}
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worker, err := address.NewFromBytes(r.Return)
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if err != nil {
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return err
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}
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sig, err := h.full.WalletSign(context.TODO(), worker, msg)
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if err != nil {
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return xerrors.Errorf("failed to sign response message: %w", err)
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}
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signedResponse := SignedStorageDealResponse{
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Response: resp,
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Signature: sig,
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}
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err = cborrpc.WriteCborRPC(s, signedResponse)
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if err != nil {
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// Assume client disconnected
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s.Close()
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delete(h.conns, resp.Proposal)
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}
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return err
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}
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