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Check format in client commP util

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This commit is contained in:
Łukasz Magiera 2021-02-16 20:48:31 +01:00
parent ea7ea72f60
commit 39ad3d3b27
1 changed files with 10 additions and 0 deletions
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10
node/impl/client/client.go
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@ -711,6 +711,16 @@ func (a *API) ClientCalcCommP(ctx context.Context, inpath string) (*api.CommPRet
return nil, err
}
// check that the data is a car file; if it's not, retrieval won't work
_, _, err = car.ReadHeader(bufio.NewReader(rdr))
if err != nil {
return nil, xerrors.Errorf("not a car file: %w", err)
}
if _, err := rdr.Seek(0, io.SeekStart); err != nil {
return nil, xerrors.Errorf("seek to start: %w", err)
}
pieceReader, pieceSize := padreader.New(rdr, uint64(stat.Size()))
commP, err := ffiwrapper.GeneratePieceCIDFromFile(arbitraryProofType, pieceReader, pieceSize)