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(VDB-68) Verify log block hash matches header block hash

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- Delete header on conflict to prompt data refresh (cascade deletes all
  data associated with that block)
- Derive header hash from rpc payload rather than computing it from data
  (prevents hash mismatch between blockchain and cache)
This commit is contained in:
Rob Mulholand
2018-11-13 14:51:39 -06:00
parent 9d26c174d4
commit 82fd73ba3f
95 changed files with 557 additions and 298 deletions
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pkg/transformers/price_feeds/repository.go
+6
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@@ -38,6 +38,12 @@ func (repository PriceFeedRepository) Create(headerID int64, models []interface{
return fmt.Errorf("model of type %T, not %T", model, PriceFeedModel{})
}
err = shared.ValidateHeaderConsistency(headerID, priceUpdate.Raw, repository.db)
if err != nil {
tx.Rollback()
return err
}
_, err = tx.Exec(`INSERT INTO maker.price_feeds (block_number, header_id, medianizer_address, usd_value, log_idx, tx_idx, raw_log)
VALUES ($1, $2, $3, $4::NUMERIC, $5, $6, $7)`, priceUpdate.BlockNumber, headerID, priceUpdate.MedianizerAddress, priceUpdate.UsdValue, priceUpdate.LogIndex, priceUpdate.TransactionIndex, priceUpdate.Raw)
if err != nil {