59b0f8c7a3
* Refactoring errors in RPC * Updating jsonrpc-core * Fixing code_at * Avoid mentioning obvious segments in proof [ci:skip]
113 lines
3.9 KiB
Rust
113 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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//! Transactions Confirmations (personal) rpc implementation
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use std::sync::{Arc, Weak};
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use jsonrpc_core::*;
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use ethcore::account_provider::AccountProvider;
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use ethcore::client::MiningBlockChainClient;
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use ethcore::miner::MinerService;
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use v1::traits::PersonalSigner;
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use v1::types::{TransactionModification, ConfirmationRequest, U256};
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use v1::helpers::{errors, SigningQueue, ConfirmationsQueue, ConfirmationPayload};
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use v1::helpers::params::expect_no_params;
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use v1::helpers::dispatch::{unlock_sign_and_dispatch, signature_with_password};
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/// Transactions confirmation (personal) rpc implementation.
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pub struct SignerClient<C, M> where C: MiningBlockChainClient, M: MinerService {
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queue: Weak<ConfirmationsQueue>,
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accounts: Weak<AccountProvider>,
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client: Weak<C>,
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miner: Weak<M>,
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}
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impl<C: 'static, M: 'static> SignerClient<C, M> where C: MiningBlockChainClient, M: MinerService {
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/// Create new instance of signer client.
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pub fn new(store: &Arc<AccountProvider>, client: &Arc<C>, miner: &Arc<M>, queue: &Arc<ConfirmationsQueue>) -> Self {
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SignerClient {
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queue: Arc::downgrade(queue),
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accounts: Arc::downgrade(store),
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client: Arc::downgrade(client),
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miner: Arc::downgrade(miner),
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}
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}
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fn active(&self) -> Result<(), Error> {
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// TODO: only call every 30s at most.
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take_weak!(self.client).keep_alive();
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Ok(())
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}
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}
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impl<C: 'static, M: 'static> PersonalSigner for SignerClient<C, M> where C: MiningBlockChainClient, M: MinerService {
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fn requests_to_confirm(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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try!(expect_no_params(params));
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let queue = take_weak!(self.queue);
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to_value(&queue.requests().into_iter().map(From::from).collect::<Vec<ConfirmationRequest>>())
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}
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fn confirm_request(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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// TODO [ToDr] TransactionModification is redundant for some calls
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// might be better to replace it in future
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from_params::<(U256, TransactionModification, String)>(params).and_then(
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|(id, modification, pass)| {
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let id = id.into();
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let accounts = take_weak!(self.accounts);
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let queue = take_weak!(self.queue);
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let client = take_weak!(self.client);
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let miner = take_weak!(self.miner);
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queue.peek(&id).map(|confirmation| {
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let result = match confirmation.payload {
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ConfirmationPayload::Transaction(mut request) => {
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// apply modification
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if let Some(gas_price) = modification.gas_price {
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request.gas_price = gas_price.into();
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}
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unlock_sign_and_dispatch(&*client, &*miner, request.into(), &*accounts, pass)
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},
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ConfirmationPayload::Sign(address, hash) => {
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signature_with_password(&*accounts, address, hash, pass)
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}
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};
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if let Ok(ref response) = result {
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queue.request_confirmed(id, Ok(response.clone()));
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}
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result
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}).unwrap_or_else(|| Err(errors::invalid_params("Unknown RequestID", id)))
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}
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)
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}
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fn reject_request(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params::<(U256, )>(params).and_then(
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|(id, )| {
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let queue = take_weak!(self.queue);
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let res = queue.request_rejected(id.into());
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to_value(&res.is_some())
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}
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)
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}
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}
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