openethereum/ethcore/src/client/bad_blocks.rs
David 6a9de9b11e
Extract the Engine trait (#10958)
* Add client-traits crate
Move the BlockInfo trait to new crate

* New crate `machine`
Contains code extracted from ethcore that defines `Machine`, `Externalities` and other execution related code.

* Use new machine and client-traits crates in ethcore

* Use new crates machine and client-traits instead of ethcore where appropriate

* Fix tests

* Don't re-export so many types from ethcore::client

* Fixing more fallout from removing re-export

* fix test

* More fallout from not re-exporting types

* Add some docs

* cleanup

* import the macro edition style

* Tweak docs

* Add missing import

* remove unused ethabi_derive imports

* Use latest ethabi-contract

* Move many traits from ethcore/client/traits to client-traits crate
Initial version of extracted Engine trait

* Move snapshot related traits to the engine crate (eew)

* Move a few snapshot related types to common_types
Cleanup Executed as exported from machine crate

* fix warning

* Gradually introduce new engine crate: snapshot

* ethcore typechecks with new engine crate

* Sort out types outside ethcore

* Add an EpochVerifier to ethash and use that in Engine.epoch_verifier()
Cleanup

* Document pub members

* Sort out tests
Sort out default impls for EpochVerifier

* Add test-helpers feature and move EngineSigner impl to the right place

* Sort out tests

* Sort out tests and refactor verification types

* Fix missing traits

* More missing traits
Fix Histogram

* Fix tests and cleanup

* cleanup

* Put back needed logger import

* Don't rexport common_types from ethcore/src/client
Don't export ethcore::client::*

* Remove files no longer used
Use types from the engine crate
Explicit exports from engine::engine

* Get rid of itertools

* Move a few more traits from ethcore to client-traits: BlockChainReset, ScheduleInfo, StateClient

* Move ProvingBlockChainClient to client-traits

* Don't re-export ForkChoice and Transition from ethcore

* Address grumbles: sort imports, remove commented out code

* Fix merge resolution error

* merge failure
2019-08-15 17:59:22 +02:00

82 lines
2.4 KiB
Rust

// Copyright 2015-2019 Parity Technologies (UK) Ltd.
// This file is part of Parity Ethereum.
// Parity Ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity Ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
//! Stores recently seen bad blocks.
use bytes::{Bytes, ToPretty};
use ethereum_types::H256;
use itertools::Itertools;
use memory_cache::MemoryLruCache;
use parking_lot::RwLock;
use types::verification::Unverified;
/// Recently seen bad blocks.
pub struct BadBlocks {
last_blocks: RwLock<MemoryLruCache<H256, (Unverified, String)>>,
}
impl Default for BadBlocks {
fn default() -> Self {
BadBlocks {
last_blocks: RwLock::new(MemoryLruCache::new(8 * 1024 * 1024)),
}
}
}
impl BadBlocks {
/// Reports given RLP as invalid block.
pub fn report(&self, raw: Bytes, message: String) {
match Unverified::from_rlp(raw) {
Ok(unverified) => {
error!(
target: "client",
"\nBad block detected: {}\nRLP: {}\nHeader: {:?}\nUncles: {}\nTransactions:{}\n",
message,
unverified.bytes.to_hex(),
unverified.header,
unverified.uncles
.iter()
.enumerate()
.map(|(index, uncle)| format!("[Uncle {}] {:?}", index, uncle))
.join("\n"),
unverified.transactions
.iter()
.enumerate()
.map(|(index, tx)| format!("[Tx {}] {:?}", index, tx))
.join("\n"),
);
self.last_blocks.write().insert(unverified.header.hash(), (unverified, message));
},
Err(err) => {
error!(target: "client", "Bad undecodable block detected: {}\n{:?}", message, err);
},
}
}
/// Returns a list of recently detected bad blocks with error descriptions.
pub fn bad_blocks(&self) -> Vec<(Unverified, String)> {
self.last_blocks.read()
.backstore()
.iter()
.map(|(_k, (unverified, message))| (
Unverified::from_rlp(unverified.bytes.clone())
.expect("Bytes coming from UnverifiedBlock so decodable; qed"),
message.clone(),
))
.collect()
}
}