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consensus/bor: handle unauthorized signer in consensus.Prepare #651

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Merged
temaniarpit27 merged 1 commit into from
Feb 16, 2023
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consensus/bor: handle unauthorized signer in consensus.Prepare #651

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7 changes: 7 additions & 0 deletions consensus/bor/bor.go
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Original file line number Diff line number Diff line change
Expand Up @@ -676,6 +676,13 @@ func (c *Bor) Prepare(chain consensus.ChainHeaderReader, header *types.Header) e

currentSigner := *c.authorizedSigner.Load()

// Bail out early if we're unauthorized to sign a block. This check also takes
// place before block is signed in `Seal`.
if !snap.ValidatorSet.HasAddress(currentSigner.signer) {
// Check the UnauthorizedSignerError.Error() msg to see why we pass number-1
return &UnauthorizedSignerError{number - 1, currentSigner.signer.Bytes()}
}

// Set the correct difficulty
header.Difficulty = new(big.Int).SetUint64(Difficulty(snap.ValidatorSet, currentSigner.signer))

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