/
retrieval.go
176 lines (144 loc) · 4.57 KB
/
retrieval.go
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package main
import (
"context"
"fmt"
rpcevent "github.com/application-research/estuary/shuttle/rpc/event"
"github.com/application-research/estuary/util"
"github.com/application-research/filclient"
"github.com/application-research/filclient/retrievehelper"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-fil-markets/retrievalmarket"
"github.com/ipfs/go-blockservice"
"github.com/ipfs/go-cid"
"github.com/ipfs/go-merkledag"
"github.com/ipld/go-ipld-prime"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/trace"
)
// NOTE: Copy pasted from the content manager in the top level estuary code
// At some point we should refactor and clean this up
type retrievalProgress struct {
wait chan struct{}
endErr error
}
func (s *Shuttle) retrieveContent(ctx context.Context, req *rpcevent.RetrieveContent) error {
ctx, span := s.Tracer.Start(ctx, "retrieveContent", trace.WithAttributes(
attribute.Int("content", int(req.Content)),
))
defer span.End()
s.retrLk.Lock()
prog, ok := s.retrievalsInProgress[req.Content]
if !ok {
prog = &retrievalProgress{
wait: make(chan struct{}),
}
s.retrievalsInProgress[req.Content] = prog
}
s.retrLk.Unlock()
if ok {
select {
case <-prog.wait:
return prog.endErr
case <-ctx.Done():
return ctx.Err()
}
}
defer func() {
s.retrLk.Lock()
delete(s.retrievalsInProgress, req.Content)
s.retrLk.Unlock()
close(prog.wait)
}()
if err := s.runRetrieval(ctx, req, nil); err != nil {
prog.endErr = err
return err
}
return nil
}
func (s *Shuttle) runRetrieval(ctx context.Context, req *rpcevent.RetrieveContent, sel ipld.Node) error {
ctx, span := s.Tracer.Start(ctx, "runRetrieval")
defer span.End()
var pin Pin
if err := s.DB.Find(&pin, "content = ?", req.Content).Error; err != nil {
return err
}
// we already have this data locally
if pin.ID > 0 {
objects, err := s.objectsForPin(ctx, pin.ID)
if err != nil {
// weird case... probably should handle better?
return fmt.Errorf("failed to get objects for pin: %w", err)
}
s.sendPinCompleteMessage(ctx, pin.Content, pin.Size, objects, req.Cid)
return nil
}
var retrievedContent bool
for _, deal := range req.Deals {
log.Debugw("attempting retrieval deal", "content", req.Content, "miner", deal.Miner, "selector", sel != nil)
ask, err := s.Filc.RetrievalQuery(ctx, deal.Miner, req.Cid)
if err != nil {
span.RecordError(err)
log.Errorw("failed to query retrieval", "miner", deal.Miner, "content", req.Cid, "err", err)
s.recordRetrievalFailure(&util.RetrievalFailureRecord{
Miner: deal.Miner.String(),
Phase: "query",
Message: err.Error(),
Content: req.Content,
Cid: util.DbCID{CID: req.Cid},
})
continue
}
log.Debugw("got retrieval ask", "content", req.Content, "miner", deal.Miner, "ask", ask)
if err := s.tryRetrieve(ctx, deal.Miner, req.Cid, ask, sel); err != nil {
span.RecordError(err)
log.Errorw("failed to retrieve content", "miner", deal.Miner, "content", req.Cid, "err", err)
s.recordRetrievalFailure(&util.RetrievalFailureRecord{
Miner: deal.Miner.String(),
Phase: "retrieval",
Message: err.Error(),
Content: req.Content,
Cid: util.DbCID{CID: req.Cid},
})
continue
}
retrievedContent = true
break
}
if retrievedContent {
newPin := &Pin{
Content: req.Content,
Cid: util.DbCID{CID: req.Cid},
UserID: req.UserID,
Active: false,
Pinning: true,
}
if err := s.DB.Create(newPin).Error; err != nil {
return err
}
dserv := merkledag.NewDAGService(blockservice.New(s.Node.Blockstore, nil))
totalSize, objects, err := s.addDatabaseTrackingToContent(ctx, req.Content, dserv, s.Node.Blockstore, req.Cid)
if err != nil {
log.Errorw("failed adding content to database after successful retrieval", "cont", req.Content, "err", err.Error())
return err
}
s.sendPinCompleteMessage(ctx, req.Content, totalSize, objects, req.Cid)
return nil
}
return fmt.Errorf("failed to retrieve with any miner we have deals with")
}
func (s *Shuttle) recordRetrievalFailure(rec *util.RetrievalFailureRecord) {
}
func (s *Shuttle) recordRetrievalSuccess(c cid.Cid, maddr address.Address, stats *filclient.RetrievalStats) {
}
func (s *Shuttle) tryRetrieve(ctx context.Context, maddr address.Address, c cid.Cid, ask *retrievalmarket.QueryResponse, sel ipld.Node) error {
proposal, err := retrievehelper.RetrievalProposalForAsk(ask, c, sel)
if err != nil {
return err
}
stats, err := s.Filc.RetrieveContent(ctx, maddr, proposal)
if err != nil {
return err
}
s.recordRetrievalSuccess(c, maddr, stats)
return nil
}