655 lines
23 KiB
Rust
655 lines
23 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 rpc implementation.
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extern crate ethash;
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use std::thread;
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use std::time::{Instant, Duration};
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use std::sync::{Arc, Weak};
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use std::ops::Deref;
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use ethsync::{SyncProvider, SyncState};
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use ethcore::miner::{MinerService, ExternalMinerService};
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use jsonrpc_core::*;
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use util::numbers::*;
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use util::sha3::*;
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use util::rlp::{encode, decode, UntrustedRlp, View};
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use util::Mutex;
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use ethcore::account_provider::AccountProvider;
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use ethcore::client::{MiningBlockChainClient, BlockID, TransactionID, UncleID};
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use ethcore::header::Header as BlockHeader;
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use ethcore::block::IsBlock;
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use ethcore::views::*;
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use ethcore::ethereum::Ethash;
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use ethcore::transaction::{Transaction as EthTransaction, SignedTransaction, Action};
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use ethcore::log_entry::LogEntry;
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use ethcore::filter::Filter as EthcoreFilter;
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use self::ethash::SeedHashCompute;
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use v1::traits::Eth;
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use v1::types::{Block, BlockTransactions, BlockNumber, Bytes, SyncStatus, SyncInfo, Transaction, CallRequest, Index, Filter, Log, Receipt, H64 as RpcH64, H256 as RpcH256, H160 as RpcH160, U256 as RpcU256};
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use v1::helpers::CallRequest as CRequest;
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use v1::impls::{default_gas_price, dispatch_transaction, error_codes};
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use serde;
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/// Eth rpc implementation.
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pub struct EthClient<C, S, M, EM> where
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C: MiningBlockChainClient,
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S: SyncProvider,
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M: MinerService,
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EM: ExternalMinerService {
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client: Weak<C>,
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sync: Weak<S>,
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accounts: Weak<AccountProvider>,
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miner: Weak<M>,
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external_miner: Arc<EM>,
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seed_compute: Mutex<SeedHashCompute>,
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allow_pending_receipt_query: bool,
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}
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impl<C, S, M, EM> EthClient<C, S, M, EM> where
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C: MiningBlockChainClient,
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S: SyncProvider,
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M: MinerService,
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EM: ExternalMinerService {
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/// Creates new EthClient.
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pub fn new(client: &Arc<C>, sync: &Arc<S>, accounts: &Arc<AccountProvider>, miner: &Arc<M>, em: &Arc<EM>, allow_pending_receipt_query: bool)
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-> EthClient<C, S, M, EM> {
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EthClient {
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client: Arc::downgrade(client),
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sync: Arc::downgrade(sync),
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miner: Arc::downgrade(miner),
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accounts: Arc::downgrade(accounts),
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external_miner: em.clone(),
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seed_compute: Mutex::new(SeedHashCompute::new()),
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allow_pending_receipt_query: allow_pending_receipt_query,
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}
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}
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fn block(&self, id: BlockID, include_txs: bool) -> Result<Value, Error> {
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let client = take_weak!(self.client);
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match (client.block(id.clone()), client.block_total_difficulty(id)) {
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(Some(bytes), Some(total_difficulty)) => {
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let block_view = BlockView::new(&bytes);
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let view = block_view.header_view();
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let block = Block {
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hash: Some(view.sha3().into()),
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parent_hash: view.parent_hash().into(),
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uncles_hash: view.uncles_hash().into(),
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author: view.author().into(),
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miner: view.author().into(),
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state_root: view.state_root().into(),
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transactions_root: view.transactions_root().into(),
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receipts_root: view.receipts_root().into(),
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number: Some(view.number().into()),
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gas_used: view.gas_used().into(),
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gas_limit: view.gas_limit().into(),
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logs_bloom: view.log_bloom().into(),
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timestamp: view.timestamp().into(),
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difficulty: view.difficulty().into(),
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total_difficulty: total_difficulty.into(),
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seal_fields: view.seal().into_iter().map(|f| decode(&f)).map(Bytes::new).collect(),
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uncles: block_view.uncle_hashes().into_iter().map(Into::into).collect(),
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transactions: {
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if include_txs {
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BlockTransactions::Full(block_view.localized_transactions().into_iter().map(Into::into).collect())
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} else {
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BlockTransactions::Hashes(block_view.transaction_hashes().into_iter().map(Into::into).collect())
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}
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},
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extra_data: Bytes::new(view.extra_data())
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};
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to_value(&block)
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},
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_ => Ok(Value::Null)
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}
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}
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fn transaction(&self, id: TransactionID) -> Result<Value, Error> {
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match take_weak!(self.client).transaction(id) {
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Some(t) => to_value(&Transaction::from(t)),
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None => Ok(Value::Null)
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}
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}
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fn uncle(&self, id: UncleID) -> Result<Value, Error> {
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let client = take_weak!(self.client);
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let uncle: BlockHeader = match client.uncle(id) {
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Some(rlp) => decode(&rlp),
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None => { return Ok(Value::Null); }
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};
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let parent_difficulty = match client.block_total_difficulty(BlockID::Hash(uncle.parent_hash().clone())) {
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Some(difficulty) => difficulty,
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None => { return Ok(Value::Null); }
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};
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let block = Block {
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hash: Some(uncle.hash().into()),
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parent_hash: uncle.parent_hash.into(),
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uncles_hash: uncle.uncles_hash.into(),
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author: uncle.author.into(),
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miner: uncle.author.into(),
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state_root: uncle.state_root.into(),
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transactions_root: uncle.transactions_root.into(),
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number: Some(uncle.number.into()),
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gas_used: uncle.gas_used.into(),
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gas_limit: uncle.gas_limit.into(),
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logs_bloom: uncle.log_bloom.into(),
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timestamp: uncle.timestamp.into(),
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difficulty: uncle.difficulty.into(),
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total_difficulty: (uncle.difficulty + parent_difficulty).into(),
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receipts_root: uncle.receipts_root.into(),
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extra_data: uncle.extra_data.into(),
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seal_fields: uncle.seal.into_iter().map(|f| decode(&f)).map(Bytes::new).collect(),
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uncles: vec![],
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transactions: BlockTransactions::Hashes(vec![]),
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};
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to_value(&block)
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}
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fn sign_call(&self, request: CRequest) -> Result<SignedTransaction, Error> {
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let (client, miner) = (take_weak!(self.client), take_weak!(self.miner));
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let from = request.from.unwrap_or(Address::zero());
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Ok(EthTransaction {
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nonce: request.nonce.unwrap_or_else(|| client.latest_nonce(&from)),
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action: request.to.map_or(Action::Create, Action::Call),
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gas: request.gas.unwrap_or(U256::from(50_000_000)),
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gas_price: request.gas_price.unwrap_or_else(|| default_gas_price(&*client, &*miner)),
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value: request.value.unwrap_or_else(U256::zero),
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data: request.data.map_or_else(Vec::new, |d| d.to_vec())
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}.fake_sign(from))
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}
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}
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pub fn pending_logs<M>(miner: &M, filter: &EthcoreFilter) -> Vec<Log> where M: MinerService {
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let receipts = miner.pending_receipts();
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let pending_logs = receipts.into_iter()
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.flat_map(|(hash, r)| r.logs.into_iter().map(|l| (hash.clone(), l)).collect::<Vec<(H256, LogEntry)>>())
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.collect::<Vec<(H256, LogEntry)>>();
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let result = pending_logs.into_iter()
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.filter(|pair| filter.matches(&pair.1))
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.map(|pair| {
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let mut log = Log::from(pair.1);
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log.transaction_hash = Some(pair.0.into());
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log
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})
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.collect();
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result
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}
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const MAX_QUEUE_SIZE_TO_MINE_ON: usize = 4; // because uncles go back 6.
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fn params_len(params: &Params) -> usize {
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match params {
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&Params::Array(ref vec) => vec.len(),
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_ => 0,
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}
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}
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fn from_params_default_second<F>(params: Params) -> Result<(F, BlockNumber, ), Error> where F: serde::de::Deserialize {
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match params_len(¶ms) {
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1 => from_params::<(F, )>(params).map(|(f,)| (f, BlockNumber::Latest)),
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_ => from_params::<(F, BlockNumber)>(params),
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}
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}
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fn from_params_default_third<F1, F2>(params: Params) -> Result<(F1, F2, BlockNumber, ), Error> where F1: serde::de::Deserialize, F2: serde::de::Deserialize {
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match params_len(¶ms) {
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2 => from_params::<(F1, F2, )>(params).map(|(f1, f2)| (f1, f2, BlockNumber::Latest)),
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_ => from_params::<(F1, F2, BlockNumber)>(params)
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}
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}
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fn make_unsupported_err() -> Error {
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Error {
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code: ErrorCode::ServerError(error_codes::UNSUPPORTED_REQUEST_CODE),
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message: "Unsupported request.".into(),
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data: None
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}
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}
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fn no_work_err() -> Error {
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Error {
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code: ErrorCode::ServerError(error_codes::NO_WORK_CODE),
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message: "Still syncing.".into(),
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data: None
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}
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}
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fn no_author_err() -> Error {
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Error {
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code: ErrorCode::ServerError(error_codes::NO_AUTHOR_CODE),
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message: "Author not configured. Run parity with --author to configure.".into(),
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data: None
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}
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}
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impl<C, S, M, EM> EthClient<C, S, M, EM> where
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C: MiningBlockChainClient + 'static,
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S: SyncProvider + 'static,
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M: MinerService + 'static,
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EM: ExternalMinerService + 'static {
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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, S, M, EM> Eth for EthClient<C, S, M, EM> where
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C: MiningBlockChainClient + 'static,
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S: SyncProvider + 'static,
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M: MinerService + 'static,
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EM: ExternalMinerService + 'static {
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fn protocol_version(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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match params {
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Params::None => Ok(Value::String(format!("{}", take_weak!(self.sync).status().protocol_version).to_owned())),
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_ => Err(Error::invalid_params())
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}
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}
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fn syncing(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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match params {
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Params::None => {
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let status = take_weak!(self.sync).status();
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let res = match status.state {
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SyncState::Idle => SyncStatus::None,
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SyncState::Waiting | SyncState::Blocks | SyncState::NewBlocks | SyncState::ChainHead => {
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let current_block = U256::from(take_weak!(self.client).chain_info().best_block_number);
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let highest_block = U256::from(status.highest_block_number.unwrap_or(status.start_block_number));
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if highest_block > current_block + U256::from(6) {
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let info = SyncInfo {
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starting_block: status.start_block_number.into(),
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current_block: current_block.into(),
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highest_block: highest_block.into(),
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};
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SyncStatus::Info(info)
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} else {
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SyncStatus::None
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}
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}
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};
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to_value(&res)
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}
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_ => Err(Error::invalid_params())
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}
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}
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fn author(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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match params {
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Params::None => to_value(&RpcH160::from(take_weak!(self.miner).author())),
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_ => Err(Error::invalid_params()),
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}
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}
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fn is_mining(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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match params {
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Params::None => to_value(&self.external_miner.is_mining()),
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_ => Err(Error::invalid_params())
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}
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}
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fn hashrate(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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match params {
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Params::None => to_value(&RpcU256::from(self.external_miner.hashrate())),
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_ => Err(Error::invalid_params())
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}
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}
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fn gas_price(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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match params {
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Params::None => {
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let (client, miner) = (take_weak!(self.client), take_weak!(self.miner));
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to_value(&RpcU256::from(default_gas_price(&*client, &*miner)))
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}
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_ => Err(Error::invalid_params())
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}
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}
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fn accounts(&self, _: Params) -> Result<Value, Error> {
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try!(self.active());
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let store = take_weak!(self.accounts);
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to_value(&store.accounts().into_iter().map(Into::into).collect::<Vec<RpcH160>>())
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}
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fn block_number(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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match params {
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Params::None => to_value(&RpcU256::from(take_weak!(self.client).chain_info().best_block_number)),
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_ => Err(Error::invalid_params())
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}
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}
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fn balance(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params_default_second(params)
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.and_then(|(address, block_number,)| {
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let address: Address = RpcH160::into(address);
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match block_number {
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BlockNumber::Pending => to_value(&RpcU256::from(take_weak!(self.miner).balance(take_weak!(self.client).deref(), &address))),
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id => to_value(&RpcU256::from(try!(take_weak!(self.client).balance(&address, id.into()).ok_or_else(make_unsupported_err)))),
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}
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})
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}
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fn storage_at(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params_default_third::<RpcH160, RpcU256>(params)
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.and_then(|(address, position, block_number,)| {
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let address: Address = RpcH160::into(address);
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let position: U256 = RpcU256::into(position);
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match block_number {
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BlockNumber::Pending => to_value(&RpcU256::from(take_weak!(self.miner).storage_at(&*take_weak!(self.client), &address, &H256::from(position)))),
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id => match take_weak!(self.client).storage_at(&address, &H256::from(position), id.into()) {
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Some(s) => to_value(&RpcU256::from(s)),
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None => Err(make_unsupported_err()), // None is only returned on unsupported requests.
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}
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}
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})
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}
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fn transaction_count(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params_default_second(params)
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.and_then(|(address, block_number,)| {
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let address: Address = RpcH160::into(address);
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match block_number {
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BlockNumber::Pending => to_value(&RpcU256::from(take_weak!(self.miner).nonce(take_weak!(self.client).deref(), &address))),
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id => to_value(&take_weak!(self.client).nonce(&address, id.into()).map(RpcU256::from)),
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}
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})
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}
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fn block_transaction_count_by_hash(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params::<(RpcH256,)>(params)
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.and_then(|(hash,)| // match
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take_weak!(self.client).block(BlockID::Hash(hash.into()))
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.map_or(Ok(Value::Null), |bytes| to_value(&RpcU256::from(BlockView::new(&bytes).transactions_count()))))
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}
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fn block_transaction_count_by_number(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params::<(BlockNumber,)>(params)
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.and_then(|(block_number,)| match block_number {
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BlockNumber::Pending => to_value(
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&RpcU256::from(take_weak!(self.miner).status().transactions_in_pending_block)
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),
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_ => take_weak!(self.client).block(block_number.into())
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.map_or(Ok(Value::Null), |bytes| to_value(&RpcU256::from(BlockView::new(&bytes).transactions_count())))
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})
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}
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fn block_uncles_count_by_hash(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params::<(RpcH256,)>(params)
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.and_then(|(hash,)|
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take_weak!(self.client).block(BlockID::Hash(hash.into()))
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.map_or(Ok(Value::Null), |bytes| to_value(&RpcU256::from(BlockView::new(&bytes).uncles_count()))))
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}
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fn block_uncles_count_by_number(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params::<(BlockNumber,)>(params)
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.and_then(|(block_number,)| match block_number {
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BlockNumber::Pending => to_value(&RpcU256::from(0)),
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_ => take_weak!(self.client).block(block_number.into())
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.map_or(Ok(Value::Null), |bytes| to_value(&RpcU256::from(BlockView::new(&bytes).uncles_count())))
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})
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}
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fn code_at(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params_default_second(params)
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.and_then(|(address, block_number,)| {
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let address: Address = RpcH160::into(address);
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match block_number {
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BlockNumber::Pending => to_value(&take_weak!(self.miner).code(take_weak!(self.client).deref(), &address).map_or_else(Bytes::default, Bytes::new)),
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BlockNumber::Latest => to_value(&take_weak!(self.client).code(&address).map_or_else(Bytes::default, Bytes::new)),
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_ => Err(Error::invalid_params()),
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}
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})
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}
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fn block_by_hash(&self, params: Params) -> Result<Value, Error> {
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try!(self.active());
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from_params::<(RpcH256, bool)>(params)
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.and_then(|(hash, include_txs)| self.block(BlockID::Hash(hash.into()), include_txs))
|
|
}
|
|
|
|
fn block_by_number(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(BlockNumber, bool)>(params)
|
|
.and_then(|(number, include_txs)| self.block(number.into(), include_txs))
|
|
}
|
|
|
|
fn transaction_by_hash(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(RpcH256,)>(params)
|
|
.and_then(|(hash,)| {
|
|
let miner = take_weak!(self.miner);
|
|
let hash: H256 = hash.into();
|
|
match miner.transaction(&hash) {
|
|
Some(pending_tx) => to_value(&Transaction::from(pending_tx)),
|
|
None => self.transaction(TransactionID::Hash(hash))
|
|
}
|
|
})
|
|
}
|
|
|
|
fn transaction_by_block_hash_and_index(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(RpcH256, Index)>(params)
|
|
.and_then(|(hash, index)| self.transaction(TransactionID::Location(BlockID::Hash(hash.into()), index.value())))
|
|
}
|
|
|
|
fn transaction_by_block_number_and_index(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(BlockNumber, Index)>(params)
|
|
.and_then(|(number, index)| self.transaction(TransactionID::Location(number.into(), index.value())))
|
|
}
|
|
|
|
fn transaction_receipt(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(RpcH256,)>(params)
|
|
.and_then(|(hash,)| {
|
|
let miner = take_weak!(self.miner);
|
|
let hash: H256 = hash.into();
|
|
match miner.pending_receipts().get(&hash) {
|
|
Some(receipt) if self.allow_pending_receipt_query => to_value(&Receipt::from(receipt.clone())),
|
|
_ => {
|
|
let client = take_weak!(self.client);
|
|
let receipt = client.transaction_receipt(TransactionID::Hash(hash));
|
|
to_value(&receipt.map(Receipt::from))
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
fn uncle_by_block_hash_and_index(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(RpcH256, Index)>(params)
|
|
.and_then(|(hash, index)| self.uncle(UncleID { block: BlockID::Hash(hash.into()), position: index.value() }))
|
|
}
|
|
|
|
fn uncle_by_block_number_and_index(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(BlockNumber, Index)>(params)
|
|
.and_then(|(number, index)| self.uncle(UncleID { block: number.into(), position: index.value() }))
|
|
}
|
|
|
|
fn compilers(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
match params {
|
|
Params::None => to_value(&(&[] as &[String])),
|
|
_ => Err(Error::invalid_params())
|
|
}
|
|
}
|
|
|
|
fn logs(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(Filter,)>(params)
|
|
.and_then(|(filter,)| {
|
|
let include_pending = filter.to_block == Some(BlockNumber::Pending);
|
|
let filter: EthcoreFilter = filter.into();
|
|
let mut logs = take_weak!(self.client).logs(filter.clone())
|
|
.into_iter()
|
|
.map(From::from)
|
|
.collect::<Vec<Log>>();
|
|
|
|
if include_pending {
|
|
let pending = pending_logs(take_weak!(self.miner).deref(), &filter);
|
|
logs.extend(pending);
|
|
}
|
|
|
|
to_value(&logs)
|
|
})
|
|
}
|
|
|
|
fn work(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
match params {
|
|
Params::None => {
|
|
let client = take_weak!(self.client);
|
|
// check if we're still syncing and return empty strings in that case
|
|
{
|
|
//TODO: check if initial sync is complete here
|
|
//let sync = take_weak!(self.sync);
|
|
if /*sync.status().state != SyncState::Idle ||*/ client.queue_info().total_queue_size() > MAX_QUEUE_SIZE_TO_MINE_ON {
|
|
trace!(target: "miner", "Syncing. Cannot give any work.");
|
|
return Err(no_work_err());
|
|
}
|
|
|
|
// Otherwise spin until our submitted block has been included.
|
|
let timeout = Instant::now() + Duration::from_millis(1000);
|
|
while Instant::now() < timeout && client.queue_info().total_queue_size() > 0 {
|
|
thread::sleep(Duration::from_millis(1));
|
|
}
|
|
}
|
|
|
|
let miner = take_weak!(self.miner);
|
|
if miner.author().is_zero() {
|
|
warn!(target: "miner", "Cannot give work package - no author is configured. Use --author to configure!");
|
|
return Err(no_author_err())
|
|
}
|
|
miner.map_sealing_work(client.deref(), |b| {
|
|
let pow_hash = b.hash();
|
|
let target = Ethash::difficulty_to_boundary(b.block().header().difficulty());
|
|
let seed_hash = self.seed_compute.lock().get_seedhash(b.block().header().number());
|
|
let block_number = RpcU256::from(b.block().header().number());
|
|
to_value(&(RpcH256::from(pow_hash), RpcH256::from(seed_hash), RpcH256::from(target), block_number))
|
|
}).unwrap_or(Err(Error::internal_error())) // no work found.
|
|
},
|
|
_ => Err(Error::invalid_params())
|
|
}
|
|
}
|
|
|
|
fn submit_work(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(RpcH64, RpcH256, RpcH256)>(params).and_then(|(nonce, pow_hash, mix_hash)| {
|
|
let nonce: H64 = nonce.into();
|
|
let pow_hash: H256 = pow_hash.into();
|
|
let mix_hash: H256 = mix_hash.into();
|
|
trace!(target: "miner", "submit_work: Decoded: nonce={}, pow_hash={}, mix_hash={}", nonce, pow_hash, mix_hash);
|
|
let miner = take_weak!(self.miner);
|
|
let client = take_weak!(self.client);
|
|
let seal = vec![encode(&mix_hash).to_vec(), encode(&nonce).to_vec()];
|
|
let r = miner.submit_seal(client.deref(), pow_hash, seal);
|
|
to_value(&r.is_ok())
|
|
})
|
|
}
|
|
|
|
fn submit_hashrate(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(RpcU256, RpcH256)>(params).and_then(|(rate, id)| {
|
|
self.external_miner.submit_hashrate(rate.into(), id.into());
|
|
to_value(&true)
|
|
})
|
|
}
|
|
|
|
fn send_raw_transaction(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params::<(Bytes, )>(params)
|
|
.and_then(|(raw_transaction, )| {
|
|
let raw_transaction = raw_transaction.to_vec();
|
|
match UntrustedRlp::new(&raw_transaction).as_val() {
|
|
Ok(signed_transaction) => dispatch_transaction(&*take_weak!(self.client), &*take_weak!(self.miner), signed_transaction),
|
|
Err(_) => to_value(&RpcH256::from(H256::from(0))),
|
|
}
|
|
})
|
|
}
|
|
|
|
fn call(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
trace!(target: "jsonrpc", "call: {:?}", params);
|
|
from_params_default_second(params)
|
|
.and_then(|(request, block_number,)| {
|
|
let request = CallRequest::into(request);
|
|
let signed = try!(self.sign_call(request));
|
|
let r = match block_number {
|
|
BlockNumber::Pending => take_weak!(self.miner).call(take_weak!(self.client).deref(), &signed, Default::default()),
|
|
BlockNumber::Latest => take_weak!(self.client).call(&signed, Default::default()),
|
|
_ => panic!("{:?}", block_number),
|
|
};
|
|
to_value(&r.map(|e| Bytes(e.output)).unwrap_or(Bytes::new(vec![])))
|
|
})
|
|
}
|
|
|
|
fn estimate_gas(&self, params: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
from_params_default_second(params)
|
|
.and_then(|(request, block_number,)| {
|
|
let request = CallRequest::into(request);
|
|
let signed = try!(self.sign_call(request));
|
|
let r = match block_number {
|
|
BlockNumber::Pending => take_weak!(self.miner).call(take_weak!(self.client).deref(), &signed, Default::default()),
|
|
BlockNumber::Latest => take_weak!(self.client).call(&signed, Default::default()),
|
|
_ => return Err(Error::invalid_params()),
|
|
};
|
|
to_value(&RpcU256::from(r.map(|res| res.gas_used + res.refunded).unwrap_or(From::from(0))))
|
|
})
|
|
}
|
|
|
|
fn compile_lll(&self, _: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
rpc_unimplemented!()
|
|
}
|
|
|
|
fn compile_serpent(&self, _: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
rpc_unimplemented!()
|
|
}
|
|
|
|
fn compile_solidity(&self, _: Params) -> Result<Value, Error> {
|
|
try!(self.active());
|
|
rpc_unimplemented!()
|
|
}
|
|
}
|