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fix error propagation

This commit is contained in:
keorn 2016-08-24 15:55:47 +02:00
parent 1cb3c164da
commit 77f06be7fb
9 changed files with 63 additions and 84 deletions
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39
ethcore/res/bft.json
View File

@ -1,39 +0,0 @@
{
"name": "TestBFT",
"engine": {
"BFT": {
"params": {
"gasLimitBoundDivisor": "0x0400",
"durationLimit": "0x0d",
"validators" : ["0x9cce34f7ab185c7aba1b7c8140d620b4bda941d6"]
}
}
},
"params": {
"accountStartNonce": "0x0100000",
"maximumExtraDataSize": "0x20",
"minGasLimit": "0x1388",
"networkID" : "0x69"
},
"genesis": {
"seal": {
"generic": {
"fields": 1,
"rlp": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa"
}
},
"difficulty": "0x20000",
"author": "0x0000000000000000000000000000000000000000",
"timestamp": "0x00",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"extraData": "0x",
"gasLimit": "0x2fefd8"
},
"accounts": {
"0000000000000000000000000000000000000001": { "balance": "1", "nonce": "1048576", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
"0000000000000000000000000000000000000002": { "balance": "1", "nonce": "1048576", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
"0000000000000000000000000000000000000003": { "balance": "1", "nonce": "1048576", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
"0000000000000000000000000000000000000004": { "balance": "1", "nonce": "1048576", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
"9cce34f7ab185c7aba1b7c8140d620b4bda941d6": { "balance": "1606938044258990275541962092341162602522202993782792835301376", "nonce": "1048576" }
}
}

16
ethcore/src/client/client.rs
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@ -1024,13 +1024,15 @@ impl BlockChainClient for Client {
fn queue_infinity_message(&self, message: Bytes) {
let full_rlp = UntrustedRlp::new(&message);
let signature = full_rlp.val_at(0).unwrap_or_else(|| return);
let message: Vec<_> = full_rlp.val_at(1).unwrap_or_else(|| return);
let message_rlp = UntrustedRlp::new(&message);
let pub_key = recover(&signature, &message.sha3()).unwrap_or_else(|| return);
if let Some(new_message) = self.engine.handle_message(pub_key.sha3().into(), message_rlp)
{
self.notify(|notify| notify.broadcast(&new_message));
if let Ok(signature) = full_rlp.val_at(0) {
if let Ok(message) = full_rlp.val_at::<Vec<_>>(1) {
let message_rlp = UntrustedRlp::new(&message);
if let Ok(pub_key) = recover(&signature, &message.sha3()) {
if let Ok(new_message) = self.engine.handle_message(pub_key.sha3().into(), message_rlp) {
self.notify(|notify| notify.broadcast(&new_message));
}
}
}
}
}
}

2
ethcore/src/client/test_client.rs
View File

@ -38,7 +38,7 @@ use spec::Spec;
use block_queue::BlockQueueInfo;
use block::{OpenBlock, SealedBlock};
use executive::Executed;
use error::CallError;
use error::{Error, CallError};
use trace::LocalizedTrace;
/// Test client.

2
ethcore/src/client/traits.rs
View File

@ -183,7 +183,7 @@ pub trait BlockChainClient : Sync + Send {
fn queue_transactions(&self, transactions: Vec<Bytes>);
/// Queue packet
fn queue_infinity_message(&self, packet: Bytes);
fn queue_infinity_message(&self, message: Bytes);
/// list all transactions
fn pending_transactions(&self) -> Vec<SignedTransaction>;

19
ethcore/src/engines/mod.rs
View File

@ -27,8 +27,8 @@ pub use self::null_engine::NullEngine;
pub use self::instant_seal::InstantSeal;
pub use self::basic_authority::BasicAuthority;
pub use self::tendermint::Tendermint;
pub use self::signed_vote::{SignedVote, VoteError};
pub use self::propose_collect::{ProposeCollect};
pub use self::signed_vote::SignedVote;
pub use self::propose_collect::ProposeCollect;
use common::{HashMap, SemanticVersion, Header, EnvInfo, Address, Builtin, BTreeMap, U256, Bytes, SignedTransaction, Error, UntrustedRlp};
use account_provider::AccountProvider;
@ -36,6 +36,19 @@ use block::ExecutedBlock;
use spec::CommonParams;
use evm::Schedule;
/// Voting errors.
#[derive(Debug)]
pub enum EngineError {
/// Voter is not in the voters set.
UnauthorisedVoter,
/// Message pertaining incorrect consensus step.
WrongStep,
/// Message pertaining unknown consensus step.
UnknownStep,
/// Message was not expected.
UnexpectedMessage
}
/// A consensus mechanism for the chain. Generally either proof-of-work or proof-of-stake-based.
/// Provides hooks into each of the major parts of block import.
pub trait Engine : Sync + Send {
@ -121,7 +134,7 @@ pub trait Engine : Sync + Send {
/// Handle any potential consensus messages;
/// updating consensus state and potentially issuing a new one.
fn handle_message(&self, sender: Address, message: UntrustedRlp) -> Option<Bytes> { None }
fn handle_message(&self, sender: Address, message: UntrustedRlp) -> Result<Bytes, Error> { Err(EngineError::UnexpectedMessage.into()) }
// TODO: builtin contract routing - to do this properly, it will require removing the built-in configuration-reading logic
// from Spec into here and removing the Spec::builtins field.

4
ethcore/src/engines/propose_collect.rs
View File

@ -18,7 +18,7 @@
use std::sync::atomic::{AtomicBool, Ordering};
use common::{HashSet, RwLock, H256, Signature, Address, Error, ec, Hashable};
use engines::VoteError;
use super::EngineError;
/// Collect votes on a hash.
#[derive(Debug)]
@ -59,7 +59,7 @@ impl ProposeCollect {
fn can_vote(&self, signature: &Signature) -> Result<(), Error> {
let signer = Address::from(try!(ec::recover(&signature, &self.hash)).sha3());
match self.voters.contains(&signer) {
false => try!(Err(VoteError::UnauthorisedVoter)),
false => try!(Err(EngineError::UnauthorisedVoter)),
true => Ok(()),
}
}

10
ethcore/src/engines/signed_vote.rs
View File

@ -16,6 +16,7 @@
//! Voting on hashes, where each vote has to come from a set of public keys.
use super::EngineError;
use common::{HashSet, HashMap, RwLock, H256, Signature, Address, Error, ec, Hashable};
/// Signed voting on hashes.
@ -33,13 +34,6 @@ pub struct SignedVote {
winner: RwLock<Option<H256>>
}
/// Voting errors.
#[derive(Debug)]
pub enum VoteError {
/// Voter is not in the voters set.
UnauthorisedVoter
}
impl SignedVote {
/// Create a new instance of BFT engine
pub fn new(voters: HashSet<Address>, threshold: usize) -> Self {
@ -71,7 +65,7 @@ impl SignedVote {
fn can_vote(&self, bare_hash: &H256, signature: &Signature) -> Result<(), Error> {
let signer = Address::from(try!(ec::recover(&signature, bare_hash)).sha3());
match self.voters.contains(&signer) {
false => try!(Err(VoteError::UnauthorisedVoter)),
false => try!(Err(EngineError::UnauthorisedVoter)),
true => Ok(()),
}
}

43
ethcore/src/engines/tendermint.rs
View File

@ -20,7 +20,7 @@ use common::*;
use account_provider::AccountProvider;
use block::*;
use spec::CommonParams;
use engines::{Engine, ProposeCollect};
use engines::{Engine, EngineError, ProposeCollect};
use evm::Schedule;
use ethjson;
@ -89,22 +89,22 @@ impl Tendermint {
p.validators.get(p.proposer_nonce%p.validator_n).unwrap().clone()
}
fn propose_message(&self, message: UntrustedRlp) -> Option<Bytes> {
fn propose_message(&self, message: UntrustedRlp) -> Result<Bytes, Error> {
match *self.our_params.s.try_read().unwrap() {
Step::Propose => (),
_ => return None,
_ => try!(Err(EngineError::WrongStep)),
}
let proposal = message.val_at(0).unwrap_or_else(|| return None);
let proposal = try!(message.val_at(0));
let vote = ProposeCollect::new(proposal,
self.our_params.validators.iter().cloned().collect(),
self.threshold());
let mut guard = self.our_params.s.try_write().unwrap();
let mut guard = self.our_params.s.write();
*guard = Step::Prevote(vote);
Some(message.as_raw().to_vec())
Ok(message.as_raw().to_vec())
}
fn prevote_message(&self, sender: Address, message: UntrustedRlp) -> Option<Bytes> {
None
fn prevote_message(&self, sender: Address, message: UntrustedRlp) -> Result<Bytes, Error> {
try!(Err(EngineError::WrongStep))
}
fn threshold(&self) -> usize {
@ -162,11 +162,11 @@ impl Engine for Tendermint {
})
}
fn handle_message(&self, sender: Address, message: UntrustedRlp) -> Option<Bytes> {
match message.val_at(0).unwrap_or_else(|| return None) {
fn handle_message(&self, sender: Address, message: UntrustedRlp) -> Result<Bytes, Error> {
match try!(message.val_at(0)) {
0u8 if sender == self.proposer() => self.propose_message(message),
1 => self.prevote_message(sender, message),
_ => None,
_ => try!(Err(EngineError::UnknownStep)),
}
}
@ -224,18 +224,18 @@ mod tests {
use spec::Spec;
/// Create a new test chain spec with `Tendermint` consensus engine.
fn new_test_authority() -> Spec { Spec::load(include_bytes!("../../res/bft.json")) }
fn new_test_tendermint() -> Spec { Spec::load(include_bytes!("../../res/tendermint.json")) }
#[test]
fn has_valid_metadata() {
let engine = new_test_authority().engine;
let engine = new_test_tendermint().engine;
assert!(!engine.name().is_empty());
assert!(engine.version().major >= 1);
}
#[test]
fn can_return_schedule() {
let engine = new_test_authority().engine;
let engine = new_test_tendermint().engine;
let schedule = engine.schedule(&EnvInfo {
number: 10000000,
author: 0.into(),
@ -251,7 +251,7 @@ mod tests {
#[test]
fn can_do_seal_verification_fail() {
let engine = new_test_authority().engine;
let engine = new_test_tendermint().engine;
let header: Header = Header::default();
let verify_result = engine.verify_block_basic(&header, None);
@ -265,7 +265,7 @@ mod tests {
#[test]
fn can_do_signature_verification_fail() {
let engine = new_test_authority().engine;
let engine = new_test_tendermint().engine;
let mut header: Header = Header::default();
header.set_seal(vec![rlp::encode(&Signature::zero()).to_vec()]);
@ -284,7 +284,7 @@ mod tests {
let addr = tap.insert_account("".sha3(), "").unwrap();
tap.unlock_account_permanently(addr, "".into()).unwrap();
let spec = new_test_authority();
let spec = new_test_tendermint();
let engine = &*spec.engine;
let genesis_header = spec.genesis_header();
let mut db_result = get_temp_journal_db();
@ -298,6 +298,15 @@ mod tests {
assert!(b.try_seal(engine, seal).is_ok());
}
#[test]
fn propose_step(){
let engine = new_test_tendermint().engine;
let tap = AccountProvider::transient_provider();
let addr = tap.insert_account("1".sha3(), "1").unwrap();
println!("{:?}", addr);
false;
}
#[test]
fn handle_message() {
false;

12
ethcore/src/error.rs
View File

@ -24,7 +24,7 @@ use client::Error as ClientError;
use ipc::binary::{BinaryConvertError, BinaryConvertable};
use types::block_import_error::BlockImportError;
use snapshot::Error as SnapshotError;
use engines::VoteError;
use engines::EngineError;
pub use types::executed::{ExecutionError, CallError};
@ -240,7 +240,7 @@ pub enum Error {
/// Snapshot error.
Snapshot(SnapshotError),
/// Consensus vote error.
Vote(VoteError),
Engine(EngineError),
}
impl fmt::Display for Error {
@ -261,7 +261,7 @@ impl fmt::Display for Error {
Error::StdIo(ref err) => err.fmt(f),
Error::Snappy(ref err) => err.fmt(f),
Error::Snapshot(ref err) => err.fmt(f),
Error::Vote(ref err) =>
Error::Engine(ref err) =>
f.write_fmt(format_args!("Bad vote: {:?}", err)),
}
}
@ -366,10 +366,10 @@ impl From<SnapshotError> for Error {
}
}
impl From<VoteError> for Error {
fn from(err: VoteError) -> Error {
impl From<EngineError> for Error {
fn from(err: EngineError) -> Error {
match err {
other => Error::Vote(other),
other => Error::Engine(other),
}
}
}