openethereum/ethcore/src/engines/signer.rs
Tomasz Drwięga d5c19f8719 Deprecate account management (#10213)
* Extract accounts from ethcore.

* Fix ethcore.

* Get rid of AccountProvider in test_helpers

* Fix rest of the code.

* Re-use EngineSigner, fix tests.

* Simplify EngineSigner to always have an Address.

* Fix RPC tests.

* Add deprecation notice to RPCs.

* Feature to disable accounts.

* extract accounts in RPC

* Run with accounts in tests.

* Fix RPC compilation and tests.

* Fix compilation of the binary.

* Fix compilation of the binary.

* Fix compilation with accounts enabled.

* Fix tests.

* Update submodule.

* Remove android.

* Use derive for Default

* Don't build secretstore by default.

* Add link to issue.

* Refresh Cargo.lock.

* Fix miner tests.

* Update rpc/Cargo.toml

Co-Authored-By: tomusdrw <tomusdrw@users.noreply.github.com>

* Fix private tests.
2019-02-07 14:34:24 +01:00

84 lines
2.5 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/>.
//! A signer used by Engines which need to sign messages.
use ethereum_types::{H256, Address};
use ethkey::{self, Signature};
/// Everything that an Engine needs to sign messages.
pub trait EngineSigner: Send + Sync {
/// Sign a consensus message hash.
fn sign(&self, hash: H256) -> Result<Signature, ethkey::Error>;
/// Signing address
fn address(&self) -> Address;
}
/// Creates a new `EngineSigner` from given key pair.
pub fn from_keypair(keypair: ethkey::KeyPair) -> Box<EngineSigner> {
Box::new(Signer(keypair))
}
struct Signer(ethkey::KeyPair);
impl EngineSigner for Signer {
fn sign(&self, hash: H256) -> Result<Signature, ethkey::Error> {
ethkey::sign(self.0.secret(), &hash)
}
fn address(&self) -> Address {
self.0.address()
}
}
#[cfg(test)]
mod test_signer {
use std::sync::Arc;
use ethkey::Password;
use accounts::{self, AccountProvider, SignError};
use super::*;
impl EngineSigner for (Arc<AccountProvider>, Address, Password) {
fn sign(&self, hash: H256) -> Result<Signature, ethkey::Error> {
match self.0.sign(self.1, Some(self.2.clone()), hash) {
Err(SignError::NotUnlocked) => unreachable!(),
Err(SignError::NotFound) => Err(ethkey::Error::InvalidAddress),
Err(SignError::Hardware(err)) => {
warn!("Error using hardware wallet for engine: {:?}", err);
Err(ethkey::Error::InvalidSecret)
},
Err(SignError::SStore(accounts::Error::EthKey(err))) => Err(err),
Err(SignError::SStore(accounts::Error::EthKeyCrypto(err))) => {
warn!("Low level crypto error: {:?}", err);
Err(ethkey::Error::InvalidSecret)
},
Err(SignError::SStore(err)) => {
warn!("Error signing for engine: {:?}", err);
Err(ethkey::Error::InvalidSignature)
},
Ok(ok) => Ok(ok),
}
}
fn address(&self) -> Address {
self.1
}
}
}