openethereum/ethcore/private-tx/src/messages.rs
Anton Gavrilov 1073d56245 Private packets verification and queue refactoring (#8715)
* Verify private transaction before propagating

* Private transactions queue reworked with tx pool queue direct usage

* Styling fixed

* Prevent resending private packets to the sender

* Process signed private transaction packets via io queue

* Test fixed

* Build and test fixed after merge

* Comments after review fixed

* Signed transaction taken from verified

* Fix after merge

* Pool scoring generalized in order to use externally

* Lib refactored according to the review comments

* Ready state refactored

* Redundant bound and copying removed

* Fixed build after the merge

* Forgotten case reworked

* Review comments fixed

* Logging reworked, target added

* Fix after merge
2018-08-29 20:31:04 +08:00

116 lines
3.1 KiB
Rust

// Copyright 2015-2018 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity 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 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. If not, see <http://www.gnu.org/licenses/>.
use ethereum_types::{H256, U256, Address};
use bytes::Bytes;
use hash::keccak;
use rlp::Encodable;
use ethkey::Signature;
use transaction::signature::{add_chain_replay_protection, check_replay_protection};
/// Message with private transaction encrypted
#[derive(Default, Debug, Clone, PartialEq, RlpEncodable, RlpDecodable, Eq)]
pub struct PrivateTransaction {
/// Encrypted data
encrypted: Bytes,
/// Address of the contract
contract: Address,
/// Hash
hash: H256,
}
impl PrivateTransaction {
/// Constructor
pub fn new(encrypted: Bytes, contract: Address) -> Self {
PrivateTransaction {
encrypted,
contract,
hash: 0.into(),
}.compute_hash()
}
fn compute_hash(mut self) -> PrivateTransaction {
self.hash = keccak(&*self.rlp_bytes());
self
}
/// Hash of the private transaction
pub fn hash(&self) -> H256 {
self.hash
}
/// Address of the contract
pub fn contract(&self) -> Address {
self.contract
}
/// Encrypted data
pub fn encrypted(&self) -> Bytes {
self.encrypted.clone()
}
}
/// Message about private transaction's signing
#[derive(Default, Debug, Clone, PartialEq, RlpEncodable, RlpDecodable, Eq)]
pub struct SignedPrivateTransaction {
/// Hash of the corresponding private transaction
private_transaction_hash: H256,
/// Signature of the validator
/// The V field of the signature
v: u64,
/// The R field of the signature
r: U256,
/// The S field of the signature
s: U256,
/// Hash
hash: H256,
}
impl SignedPrivateTransaction {
/// Construct a signed private transaction message
pub fn new(private_transaction_hash: H256, sig: Signature, chain_id: Option<u64>) -> Self {
SignedPrivateTransaction {
private_transaction_hash: private_transaction_hash,
r: sig.r().into(),
s: sig.s().into(),
v: add_chain_replay_protection(sig.v() as u64, chain_id),
hash: 0.into(),
}.compute_hash()
}
fn compute_hash(mut self) -> SignedPrivateTransaction {
self.hash = keccak(&*self.rlp_bytes());
self
}
pub fn standard_v(&self) -> u8 { check_replay_protection(self.v) }
/// Construct a signature object from the sig.
pub fn signature(&self) -> Signature {
Signature::from_rsv(&self.r.into(), &self.s.into(), self.standard_v())
}
/// Get the hash of of the original transaction.
pub fn private_transaction_hash(&self) -> H256 {
self.private_transaction_hash
}
/// Own hash
pub fn hash(&self) -> H256 {
self.hash
}
}