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chainntnfs/bitcoindnotify: fix possible panic with lack of txindex

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In this commit, we fix a recently introduced bug which can result in a
panic when bitcoind nodes without a txindex active are started. The
issue was that we would still defence the transaction's blockhash, which
would be nil if we detected that the backend didn't have the txindex
active.
This commit is contained in:
Olaoluwa Osuntokun 2018-04-17 20:08:50 -07:00
parent 188b8462cd
commit 005510b54f
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GPG key ID: 964EA263DD637C21
1 changed files with 3 additions and 6 deletions
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9
chainntnfs/bitcoindnotify/bitcoind.go
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@ -616,13 +616,10 @@ func (b *BitcoindNotifier) RegisterSpendNtfn(outpoint *wire.OutPoint,
// of a race condition, wherein the output itself is unspent,
// and only arrives in the mempool after the getxout call.
if blockHash != nil {
startHash, err := chainhash.NewHashFromStr(tx.BlockHash)
if err != nil {
return nil, err
}
// Rescan all the blocks until the current one.
startHeight, err := b.chainConn.GetBlockHeight(startHash)
startHeight, err := b.chainConn.GetBlockHeight(
blockHash,
)
if err != nil {
return nil, err
}