openethereum/rpc/src/v1/impls/eth_signing.rs
2016-06-18 10:54:12 +02:00

122 lines
3.8 KiB
Rust

// Copyright 2015, 2016 Ethcore (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/>.
//! Eth Signing RPC implementation.
use std::sync::{Arc, Weak};
use jsonrpc_core::*;
use ethcore::miner::MinerService;
use ethcore::client::MiningBlockChainClient;
use util::numbers::*;
use util::keys::store::AccountProvider;
use v1::helpers::{SigningQueue, ConfirmationsQueue};
use v1::traits::EthSigning;
use v1::types::TransactionRequest;
use v1::impls::{sign_and_dispatch, error_codes};
/// Implementation of functions that require signing when no trusted signer is used.
pub struct EthSigningQueueClient {
queue: Weak<ConfirmationsQueue>,
}
impl EthSigningQueueClient {
/// Creates a new signing queue client given shared signing queue.
pub fn new(queue: &Arc<ConfirmationsQueue>) -> Self {
EthSigningQueueClient {
queue: Arc::downgrade(queue),
}
}
}
impl EthSigning for EthSigningQueueClient {
fn sign(&self, _params: Params) -> Result<Value, Error> {
warn!("Invoking eth_sign is not yet supported with signer enabled.");
// TODO [ToDr] Implement sign when rest of the signing queue is ready.
rpc_unimplemented!()
}
fn send_transaction(&self, params: Params) -> Result<Value, Error> {
from_params::<(TransactionRequest, )>(params)
.and_then(|(request, )| {
let queue = take_weak!(self.queue);
let id = queue.add_request(request);
let result = id.wait_with_timeout();
result.unwrap_or_else(|| to_value(&H256::new()))
})
}
}
/// Implementation of functions that require signing when no trusted signer is used.
pub struct EthSigningUnsafeClient<C, A, M> where
C: MiningBlockChainClient,
A: AccountProvider,
M: MinerService {
client: Weak<C>,
accounts: Weak<A>,
miner: Weak<M>,
}
impl<C, A, M> EthSigningUnsafeClient<C, A, M> where
C: MiningBlockChainClient,
A: AccountProvider,
M: MinerService {
/// Creates new EthClient.
pub fn new(client: &Arc<C>, accounts: &Arc<A>, miner: &Arc<M>)
-> Self {
EthSigningUnsafeClient {
client: Arc::downgrade(client),
miner: Arc::downgrade(miner),
accounts: Arc::downgrade(accounts),
}
}
}
impl<C, A, M> EthSigning for EthSigningUnsafeClient<C, A, M> where
C: MiningBlockChainClient + 'static,
A: AccountProvider + 'static,
M: MinerService + 'static {
fn sign(&self, params: Params) -> Result<Value, Error> {
from_params::<(Address, H256)>(params).and_then(|(addr, msg)| {
take_weak!(self.accounts).sign(&addr, &msg)
.map(|v| to_value(&v))
.unwrap_or_else(|e| Err(account_locked(format!("Error: {:?}", e))))
})
}
fn send_transaction(&self, params: Params) -> Result<Value, Error> {
from_params::<(TransactionRequest, )>(params)
.and_then(|(request, )| {
let accounts = take_weak!(self.accounts);
match accounts.account_secret(&request.from) {
Ok(secret) => sign_and_dispatch(&*take_weak!(self.client), &*take_weak!(self.miner), request, secret),
Err(e) => Err(account_locked(format!("Error: {:?}", e))),
}
})
}
}
fn account_locked(data: String) -> Error {
Error {
code: ErrorCode::ServerError(error_codes::ACCOUNT_LOCKED),
message: "Your account is locked. Unlock the account via CLI, personal_unlockAccount or use Trusted Signer.".into(),
data: Some(Value::String(data)),
}
}