125 lines
3.9 KiB
Rust
125 lines
3.9 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Eth Signing RPC implementation.
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use std::sync::{Arc, Weak};
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use jsonrpc_core::*;
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use ethcore::miner::MinerService;
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use ethcore::client::MiningBlockChainClient;
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use util::numbers::*;
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use ethcore::account_provider::AccountProvider;
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use v1::helpers::{SigningQueue, ConfirmationsQueue};
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use v1::traits::EthSigning;
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use v1::types::{TransactionRequest, Bytes};
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use v1::impls::sign_and_dispatch;
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/// Implementation of functions that require signing when no trusted signer is used.
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pub struct EthSigningQueueClient<M: MinerService> {
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queue: Weak<ConfirmationsQueue>,
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miner: Weak<M>,
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}
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impl<M: MinerService> EthSigningQueueClient<M> {
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/// Creates a new signing queue client given shared signing queue.
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pub fn new(queue: &Arc<ConfirmationsQueue>, miner: &Arc<M>) -> Self {
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EthSigningQueueClient {
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queue: Arc::downgrade(queue),
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miner: Arc::downgrade(miner),
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}
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}
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fn fill_optional_fields(&self, miner: Arc<M>, mut request: TransactionRequest) -> TransactionRequest {
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if let None = request.gas {
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request.gas = Some(miner.sensible_gas_limit());
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}
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if let None = request.gas_price {
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request.gas_price = Some(miner.sensible_gas_price());
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}
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if let None = request.data {
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request.data = Some(Bytes::new(Vec::new()));
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}
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request
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}
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}
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impl<M: MinerService + 'static> EthSigning for EthSigningQueueClient<M> {
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fn sign(&self, _params: Params) -> Result<Value, Error> {
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warn!("Invoking eth_sign is not yet supported with signer enabled.");
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// TODO [ToDr] Implement sign when rest of the signing queue is ready.
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rpc_unimplemented!()
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}
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fn send_transaction(&self, params: Params) -> Result<Value, Error> {
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from_params::<(TransactionRequest, )>(params)
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.and_then(|(request, )| {
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let queue = take_weak!(self.queue);
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let miner = take_weak!(self.miner);
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let request = self.fill_optional_fields(miner, request);
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let id = queue.add_request(request);
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let result = id.wait_with_timeout();
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result.unwrap_or_else(|| to_value(&H256::new()))
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})
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}
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}
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/// Implementation of functions that require signing when no trusted signer is used.
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pub struct EthSigningUnsafeClient<C, M> where
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C: MiningBlockChainClient,
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M: MinerService {
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client: Weak<C>,
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accounts: Weak<AccountProvider>,
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miner: Weak<M>,
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}
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impl<C, M> EthSigningUnsafeClient<C, M> where
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C: MiningBlockChainClient,
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M: MinerService {
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/// Creates new EthClient.
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pub fn new(client: &Arc<C>, accounts: &Arc<AccountProvider>, miner: &Arc<M>)
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-> Self {
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EthSigningUnsafeClient {
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client: Arc::downgrade(client),
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miner: Arc::downgrade(miner),
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accounts: Arc::downgrade(accounts),
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}
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}
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}
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impl<C, M> EthSigning for EthSigningUnsafeClient<C, M> where
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C: MiningBlockChainClient + 'static,
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M: MinerService + 'static {
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fn sign(&self, params: Params) -> Result<Value, Error> {
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from_params::<(Address, H256)>(params).and_then(|(addr, msg)| {
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to_value(&take_weak!(self.accounts).sign(addr, msg).unwrap_or(H520::zero()))
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})
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}
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fn send_transaction(&self, params: Params) -> Result<Value, Error> {
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from_params::<(TransactionRequest, )>(params)
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.and_then(|(request, )| {
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let sender = request.from;
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match sign_and_dispatch(&*take_weak!(self.client), &*take_weak!(self.miner), request, &*take_weak!(self.accounts), sender) {
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Ok(hash) => to_value(&hash),
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_ => to_value(&H256::zero()),
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}
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})
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}
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}
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