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parity-zcash
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fixed verification of transactions, which depend on outputs of transactions of the same block (#47)

This commit is contained in:
Svyatoslav Nikolsky 2016-10-27 13:19:36 +00:00 committed by Marek Kotewicz
parent 3ebf484d96
commit 89ef375467
1 changed files with 11 additions and 5 deletions
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16
verification/src/chain_verifier.rs
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@ -18,7 +18,7 @@ impl ChainVerifier {
ChainVerifier { store: store }
}
fn verify_transaction(&self, transaction: &chain::Transaction) -> Result<(), TransactionError> {
fn verify_transaction(&self, block: &chain::Block, transaction: &chain::Transaction) -> Result<(), TransactionError> {
use script::{
TransactionInputSigner,
TransactionSignatureChecker,
@ -28,9 +28,15 @@ impl ChainVerifier {
};
for (input_index, input) in transaction.inputs().iter().enumerate() {
let parent_transaction = match self.store.transaction(&input.previous_output.hash) {
Some(tx) => tx,
None => { return Err(TransactionError::Input(input_index)); }
let store_parent_transaction = self.store.transaction(&input.previous_output.hash);
let parent_transaction = match store_parent_transaction {
Some(ref tx) => tx,
None => {
match block.transactions.iter().filter(|t| t.hash() == input.previous_output.hash).nth(0) {
Some(ref tx) => tx,
None => { return Err(TransactionError::Input(input_index)); },
}
},
};
if parent_transaction.outputs.len() <= input.previous_output.index as usize {
return Err(TransactionError::Input(input_index));
@ -89,7 +95,7 @@ impl Verify for ChainVerifier {
// verify transactions (except coinbase)
for (idx, transaction) in block.transactions().iter().skip(1).enumerate() {
try!(self.verify_transaction(transaction).map_err(|e| Error::Transaction(idx, e)));
try!(self.verify_transaction(block, transaction).map_err(|e| Error::Transaction(idx, e)));
}
let _parent = match self.store.block(BlockRef::Hash(block.header().previous_header_hash.clone())) {