Dedupe VerifyTransactionError into TransactionError
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1d646e6a27
commit
b2df84fc59
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@ -28,10 +28,7 @@ use zebra_chain::{
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};
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use zebra_state as zs;
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use crate::{
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error::*,
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transaction::{self, VerifyTransactionError},
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};
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use crate::{error::*, transaction};
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use crate::{script, BoxError};
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mod check;
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@ -48,27 +45,33 @@ pub struct BlockVerifier<S> {
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transaction_verifier: transaction::Verifier<S>,
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}
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// TODO: dedupe with crate::error::BlockError
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#[non_exhaustive]
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#[derive(Debug, Error)]
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pub enum VerifyBlockError {
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#[error("unable to verify depth for block {hash} from chain state during block verification")]
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Depth { source: BoxError, hash: block::Hash },
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#[error(transparent)]
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Block {
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#[from]
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source: BlockError,
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},
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#[error(transparent)]
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Equihash {
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#[from]
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source: equihash::Error,
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},
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#[error(transparent)]
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Time(zebra_chain::block::BlockTimeError),
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#[error("unable to commit block after semantic verification")]
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Commit(#[source] BoxError),
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#[error("invalid transaction")]
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Transaction(#[source] VerifyTransactionError),
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Transaction(#[source] TransactionError),
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}
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impl<S> BlockVerifier<S>
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@ -7,6 +7,10 @@
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use thiserror::Error;
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use zebra_chain::primitives::ed25519;
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use crate::BoxError;
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#[derive(Error, Debug, PartialEq)]
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pub enum SubsidyError {
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#[error("no coinbase transaction in block")]
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@ -24,8 +28,45 @@ pub enum TransactionError {
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#[error("coinbase input found in non-coinbase transaction")]
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CoinbaseInputFound,
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#[error("coinbase transaction MUST NOT have any JoinSplit descriptions or Spend descriptions")]
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CoinbaseHasJoinSplitOrSpend,
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#[error("coinbase transaction failed subsidy validation")]
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Subsidy(#[from] SubsidyError),
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#[error("transaction version number MUST be >= 4")]
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WrongVersion,
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#[error("at least one of tx_in_count, nShieldedSpend, and nJoinSplit MUST be nonzero")]
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NoTransfer,
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#[error("if there are no Spends or Outputs, the value balance MUST be 0.")]
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BadBalance,
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/// Could not verify a transparent script
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Script(#[from] zebra_script::Error),
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// XXX change this when we align groth16 verifier errors with bellman
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// and add a from annotation when the error type is more precise
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#[error("spend proof MUST be valid given a primary input formed from the other fields except spendAuthSig")]
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Groth16(BoxError),
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#[error(
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"joinSplitSig MUST represent a valid signature under joinSplitPubKey of dataToBeSigned"
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)]
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Ed25519(#[from] ed25519::Error),
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#[error("bindingSig MUST represent a valid signature under the transaction binding validating key bvk of SigHash")]
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RedJubjub(redjubjub::Error),
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}
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impl From<BoxError> for TransactionError {
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fn from(err: BoxError) -> Self {
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match err.downcast::<redjubjub::Error>() {
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Ok(e) => TransactionError::RedJubjub(*e),
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Err(e) => TransactionError::Internal(e),
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}
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}
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}
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impl From<SubsidyError> for BlockError {
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@ -10,18 +10,17 @@ use futures::{
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stream::{FuturesUnordered, StreamExt},
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FutureExt,
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};
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use thiserror::Error;
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use tower::{Service, ServiceExt};
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use zebra_chain::{
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parameters::NetworkUpgrade,
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primitives::{ed25519, redjubjub},
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transaction::{self, HashType, Transaction},
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};
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use zebra_state as zs;
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use crate::{script, BoxError};
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use crate::{error::TransactionError, script, BoxError};
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mod check;
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@ -45,40 +44,6 @@ where
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}
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}
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#[non_exhaustive]
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#[derive(Debug, Display, Error)]
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pub enum VerifyTransactionError {
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/// Only V4 and later transactions can be verified.
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WrongVersion,
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/// A transaction MUST move money around.
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NoTransfer,
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/// The balance of money moving around doesn't compute.
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BadBalance,
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/// Violation of coinbase rules.
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Coinbase,
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/// Could not verify a transparent script
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Script(#[from] zebra_script::Error),
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/// Could not verify a Groth16 proof of a JoinSplit/Spend/Output description
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// XXX change this when we align groth16 verifier errors with bellman
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// and add a from annotation when the error type is more precise
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Groth16(BoxError),
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/// Could not verify a Ed25519 signature with JoinSplitData
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Ed25519(#[from] ed25519::Error),
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/// Could not verify a RedJubjub signature with ShieldedData
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RedJubjub(redjubjub::Error),
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/// An error that arises from implementation details of the verification service
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Internal(BoxError),
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}
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impl From<BoxError> for VerifyTransactionError {
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fn from(err: BoxError) -> Self {
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match err.downcast::<redjubjub::Error>() {
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Ok(e) => VerifyTransactionError::RedJubjub(*e),
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Err(e) => VerifyTransactionError::Internal(e),
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}
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}
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}
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/// Specifies whether a transaction should be verified as part of a block or as
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/// part of the mempool.
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///
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@ -98,7 +63,7 @@ where
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ZS::Future: Send + 'static,
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{
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type Response = transaction::Hash;
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type Error = VerifyTransactionError;
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type Error = TransactionError;
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type Future =
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Pin<Box<dyn Future<Output = Result<Self::Response, Self::Error>> + Send + 'static>>;
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@ -127,7 +92,7 @@ where
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async move {
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match &*tx {
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Transaction::V1 { .. } | Transaction::V2 { .. } | Transaction::V3 { .. } => {
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Err(VerifyTransactionError::WrongVersion)
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Err(TransactionError::WrongVersion)
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}
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Transaction::V4 {
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inputs,
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@ -6,7 +6,7 @@ use zebra_chain::{
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transaction::{JoinSplitData, ShieldedData, Transaction},
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};
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use crate::transaction::VerifyTransactionError;
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use crate::error::TransactionError;
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/// Validate the JoinSplit binding signature.
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///
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@ -15,17 +15,17 @@ use crate::transaction::VerifyTransactionError;
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pub fn validate_joinsplit_sig(
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joinsplit_data: &JoinSplitData<Groth16Proof>,
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sighash: &[u8],
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) -> Result<(), VerifyTransactionError> {
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) -> Result<(), TransactionError> {
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ed25519::VerificationKey::try_from(joinsplit_data.pub_key)
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.and_then(|vk| vk.verify(&joinsplit_data.sig, sighash))
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.map_err(VerifyTransactionError::Ed25519)
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.map_err(TransactionError::Ed25519)
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}
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/// Check that at least one of tx_in_count, nShieldedSpend, and nJoinSplit MUST
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/// be non-zero.
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///
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/// https://zips.z.cash/protocol/canopy.pdf#txnencodingandconsensus
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pub fn some_money_is_spent(tx: &Transaction) -> Result<(), VerifyTransactionError> {
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pub fn some_money_is_spent(tx: &Transaction) -> Result<(), TransactionError> {
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match tx {
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Transaction::V4 {
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inputs,
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@ -39,10 +39,10 @@ pub fn some_money_is_spent(tx: &Transaction) -> Result<(), VerifyTransactionErro
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{
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Ok(())
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} else {
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Err(VerifyTransactionError::NoTransfer)
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Err(TransactionError::NoTransfer)
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}
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}
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_ => Err(VerifyTransactionError::WrongVersion),
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_ => Err(TransactionError::WrongVersion),
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}
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}
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@ -55,16 +55,16 @@ pub fn some_money_is_spent(tx: &Transaction) -> Result<(), VerifyTransactionErro
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/// https://zips.z.cash/protocol/canopy.pdf#consensusfrombitcoin
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pub fn any_coinbase_inputs_no_transparent_outputs(
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tx: &Transaction,
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) -> Result<(), VerifyTransactionError> {
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) -> Result<(), TransactionError> {
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match tx {
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Transaction::V4 { outputs, .. } => {
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if !tx.contains_coinbase_input() || !outputs.is_empty() {
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Ok(())
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} else {
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Err(VerifyTransactionError::NoTransfer)
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Err(TransactionError::NoTransfer)
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}
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}
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_ => Err(VerifyTransactionError::WrongVersion),
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_ => Err(TransactionError::WrongVersion),
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}
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}
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@ -74,20 +74,20 @@ pub fn any_coinbase_inputs_no_transparent_outputs(
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pub fn shielded_balances_match(
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shielded_data: &ShieldedData,
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value_balance: Amount,
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) -> Result<(), VerifyTransactionError> {
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) -> Result<(), TransactionError> {
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if (shielded_data.spends().count() + shielded_data.outputs().count() != 0)
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|| i64::from(value_balance) == 0
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{
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Ok(())
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} else {
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Err(VerifyTransactionError::BadBalance)
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Err(TransactionError::BadBalance)
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}
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}
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/// Check that a coinbase tx does not have any JoinSplit or Spend descriptions.
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///
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/// https://zips.z.cash/protocol/canopy.pdf#consensusfrombitcoin
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pub fn coinbase_tx_does_not_spend_shielded(tx: &Transaction) -> Result<(), VerifyTransactionError> {
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pub fn coinbase_tx_does_not_spend_shielded(tx: &Transaction) -> Result<(), TransactionError> {
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match tx {
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Transaction::V4 {
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joinsplit_data: Some(joinsplit_data),
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@ -99,9 +99,9 @@ pub fn coinbase_tx_does_not_spend_shielded(tx: &Transaction) -> Result<(), Verif
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{
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Ok(())
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} else {
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Err(VerifyTransactionError::Coinbase)
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Err(TransactionError::CoinbaseHasJoinSplitOrSpend)
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}
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}
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_ => Err(VerifyTransactionError::WrongVersion),
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_ => Err(TransactionError::WrongVersion),
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}
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}
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