1175 lines
41 KiB
Rust
1175 lines
41 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of OpenEthereum.
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// OpenEthereum 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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// OpenEthereum 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 OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
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//! Eth rpc implementation.
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use std::{
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sync::Arc,
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thread,
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time::{Duration, Instant, SystemTime, UNIX_EPOCH},
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};
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use ethereum_types::{Address, H160, H256, H64, U256, U64};
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use parking_lot::Mutex;
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use ethash::{self, SeedHashCompute};
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use ethcore::{
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client::{
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BlockChainClient, BlockId, Call, EngineInfo, ProvingBlockChainClient, StateClient,
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StateInfo, StateOrBlock, TransactionId, UncleId,
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},
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miner::{self, MinerService},
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snapshot::SnapshotService,
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};
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use hash::keccak;
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use miner::external::ExternalMinerService;
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use sync::SyncProvider;
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use types::{
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encoded,
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filter::Filter as EthcoreFilter,
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header::Header,
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transaction::{LocalizedTransaction, SignedTransaction, TypedTransaction},
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BlockNumber as EthBlockNumber,
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};
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use jsonrpc_core::{futures::future, BoxFuture, Result};
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use v1::{
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helpers::{
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self,
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block_import::is_major_importing,
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deprecated::{self, DeprecationNotice},
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dispatch::{default_gas_price, FullDispatcher},
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errors, fake_sign, limit_logs,
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},
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metadata::Metadata,
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traits::Eth,
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types::{
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block_number_to_id, Block, BlockNumber, BlockTransactions, Bytes, CallRequest, EthAccount,
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Filter, Index, Log, Receipt, RichBlock, StorageProof, SyncInfo, SyncStatus, Transaction,
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Work,
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},
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};
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const EXTRA_INFO_PROOF: &str = "Object exists in blockchain (fetched earlier), extra_info is always available if object exists; qed";
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/// Eth RPC options
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#[derive(Copy, Clone)]
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pub struct EthClientOptions {
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/// Gas Price Percentile used as default gas price.
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pub gas_price_percentile: usize,
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/// Return 'null' instead of an error if ancient block sync is still in
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/// progress and the block information requested could not be found.
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pub allow_missing_blocks: bool,
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/// Enable Experimental RPC-Calls
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pub allow_experimental_rpcs: bool,
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/// flag for ancient block sync
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pub no_ancient_blocks: bool,
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}
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impl EthClientOptions {
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/// Creates new default `EthClientOptions` and allows alterations
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/// by provided function.
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pub fn with<F: Fn(&mut Self)>(fun: F) -> Self {
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let mut options = Self::default();
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fun(&mut options);
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options
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}
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}
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impl Default for EthClientOptions {
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fn default() -> Self {
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EthClientOptions {
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gas_price_percentile: 50,
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allow_missing_blocks: false,
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allow_experimental_rpcs: false,
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no_ancient_blocks: false,
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}
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}
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}
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/// Eth rpc implementation.
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pub struct EthClient<C, SN: ?Sized, S: ?Sized, M, EM>
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where
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C: miner::BlockChainClient + BlockChainClient,
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SN: SnapshotService,
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S: SyncProvider,
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M: MinerService,
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EM: ExternalMinerService,
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{
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client: Arc<C>,
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snapshot: Arc<SN>,
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sync: Arc<S>,
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accounts: Arc<dyn Fn() -> Vec<Address> + Send + Sync>,
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miner: Arc<M>,
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external_miner: Arc<EM>,
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seed_compute: Mutex<SeedHashCompute>,
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options: EthClientOptions,
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deprecation_notice: DeprecationNotice,
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}
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#[derive(Debug)]
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enum BlockNumberOrId {
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Number(BlockNumber),
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Id(BlockId),
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}
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impl From<BlockId> for BlockNumberOrId {
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fn from(value: BlockId) -> BlockNumberOrId {
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BlockNumberOrId::Id(value)
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}
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}
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impl From<BlockNumber> for BlockNumberOrId {
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fn from(value: BlockNumber) -> BlockNumberOrId {
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BlockNumberOrId::Number(value)
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}
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}
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enum PendingOrBlock {
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Block(BlockId),
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Pending,
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}
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struct PendingUncleId {
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id: PendingOrBlock,
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position: usize,
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}
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enum PendingTransactionId {
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Hash(H256),
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Location(PendingOrBlock, usize),
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}
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impl<C, SN: ?Sized, S: ?Sized, M, EM, T: StateInfo + 'static> EthClient<C, SN, S, M, EM>
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where
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C: miner::BlockChainClient
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+ BlockChainClient
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+ StateClient<State = T>
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+ Call<State = T>
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+ EngineInfo,
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SN: SnapshotService,
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S: SyncProvider,
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M: MinerService<State = T>,
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EM: ExternalMinerService,
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{
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/// Creates new EthClient.
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pub fn new(
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client: &Arc<C>,
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snapshot: &Arc<SN>,
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sync: &Arc<S>,
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accounts: &Arc<dyn Fn() -> Vec<Address> + Send + Sync>,
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miner: &Arc<M>,
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em: &Arc<EM>,
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options: EthClientOptions,
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) -> Self {
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EthClient {
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client: client.clone(),
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snapshot: snapshot.clone(),
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sync: sync.clone(),
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miner: miner.clone(),
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accounts: accounts.clone(),
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external_miner: em.clone(),
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seed_compute: Mutex::new(SeedHashCompute::default()),
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options,
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deprecation_notice: Default::default(),
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}
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}
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fn rich_block(&self, id: BlockNumberOrId, include_txs: bool) -> Result<Option<RichBlock>> {
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let client = &self.client;
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let client_query = |id| {
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(
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client.block(id),
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client.block_total_difficulty(id),
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client.block_extra_info(id),
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false,
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)
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};
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let (block, difficulty, extra, is_pending) = match id {
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BlockNumberOrId::Number(BlockNumber::Pending) => {
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let info = self.client.chain_info();
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match self.miner.pending_block(info.best_block_number) {
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Some(pending_block) => {
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warn!("`Pending` is deprecated and may be removed in future versions.");
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let difficulty = {
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let latest_difficulty = self
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.client
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.block_total_difficulty(BlockId::Latest)
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.expect("blocks in chain have details; qed");
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let pending_difficulty = self
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.miner
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.pending_block_header(info.best_block_number)
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.map(|header| *header.difficulty());
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if let Some(difficulty) = pending_difficulty {
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difficulty + latest_difficulty
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} else {
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latest_difficulty
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}
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};
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let extra = self.client.engine().extra_info(&pending_block.header);
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(
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Some(encoded::Block::new(pending_block.rlp_bytes())),
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Some(difficulty),
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Some(extra),
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true,
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)
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}
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None => {
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warn!("`Pending` is deprecated and may be removed in future versions. Falling back to `Latest`");
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client_query(BlockId::Latest)
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}
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}
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}
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BlockNumberOrId::Number(num) => {
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let id = match num {
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BlockNumber::Latest => BlockId::Latest,
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BlockNumber::Earliest => BlockId::Earliest,
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BlockNumber::Num(n) => BlockId::Number(n),
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BlockNumber::Pending => unreachable!(), // Already covered
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};
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client_query(id)
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}
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BlockNumberOrId::Id(id) => client_query(id),
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};
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match (block, difficulty) {
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(Some(block), Some(total_difficulty)) => {
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let view = block.header_view();
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Ok(Some(RichBlock {
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inner: Block {
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hash: match is_pending {
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true => None,
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false => Some(view.hash()),
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},
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size: Some(block.rlp().as_raw().len().into()),
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parent_hash: view.parent_hash(),
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uncles_hash: view.uncles_hash(),
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author: view.author(),
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miner: view.author(),
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state_root: view.state_root(),
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transactions_root: view.transactions_root(),
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receipts_root: view.receipts_root(),
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number: match is_pending {
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true => None,
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false => Some(view.number().into()),
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},
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gas_used: view.gas_used(),
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gas_limit: view.gas_limit(),
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logs_bloom: match is_pending {
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true => None,
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false => Some(view.log_bloom()),
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},
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timestamp: view.timestamp().into(),
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difficulty: view.difficulty(),
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total_difficulty: Some(total_difficulty),
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seal_fields: view.seal().into_iter().map(Into::into).collect(),
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uncles: block.uncle_hashes(),
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transactions: match include_txs {
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true => BlockTransactions::Full(
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block
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.view()
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.localized_transactions()
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.into_iter()
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.map(Transaction::from_localized)
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.collect(),
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),
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false => BlockTransactions::Hashes(block.transaction_hashes()),
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},
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extra_data: Bytes::new(view.extra_data()),
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},
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extra_info: extra.expect(EXTRA_INFO_PROOF),
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}))
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}
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_ => Ok(None),
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}
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}
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fn transaction(&self, id: PendingTransactionId) -> Result<Option<Transaction>> {
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let client_transaction = |id| match self.client.transaction(id) {
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Some(t) => Ok(Some(Transaction::from_localized(t))),
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None => Ok(None),
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};
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match id {
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PendingTransactionId::Hash(hash) => client_transaction(TransactionId::Hash(hash)),
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PendingTransactionId::Location(PendingOrBlock::Block(block), index) => {
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client_transaction(TransactionId::Location(block, index))
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}
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PendingTransactionId::Location(PendingOrBlock::Pending, index) => {
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let info = self.client.chain_info();
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let pending_block = match self.miner.pending_block(info.best_block_number) {
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Some(block) => block,
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None => return Ok(None),
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};
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// Implementation stolen from `extract_transaction_at_index`
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let transaction = pending_block
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.transactions
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.get(index)
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// Verify if transaction signature is correct.
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.and_then(|tx| SignedTransaction::new(tx.clone()).ok())
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.map(|signed_tx| {
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let (signed, sender, _) = signed_tx.deconstruct();
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let block_hash = pending_block.header.hash();
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let block_number = pending_block.header.number();
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let transaction_index = index;
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let cached_sender = Some(sender);
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LocalizedTransaction {
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signed,
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block_number,
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block_hash,
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transaction_index,
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cached_sender,
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}
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})
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.map(Transaction::from_localized);
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Ok(transaction)
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}
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}
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}
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fn uncle(&self, id: PendingUncleId) -> Result<Option<RichBlock>> {
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let client = &self.client;
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let (uncle, parent_difficulty, extra) = match id {
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PendingUncleId {
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id: PendingOrBlock::Pending,
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position,
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} => {
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let info = self.client.chain_info();
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let pending_block = match self.miner.pending_block(info.best_block_number) {
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Some(block) => block,
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None => return Ok(None),
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};
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let uncle = match pending_block.uncles.get(position) {
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Some(uncle) => uncle.clone(),
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None => return Ok(None),
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};
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let difficulty = {
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let latest_difficulty = self
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.client
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.block_total_difficulty(BlockId::Latest)
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.expect("blocks in chain have details; qed");
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let pending_difficulty = self
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.miner
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.pending_block_header(info.best_block_number)
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.map(|header| *header.difficulty());
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if let Some(difficulty) = pending_difficulty {
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difficulty + latest_difficulty
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} else {
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latest_difficulty
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}
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};
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let extra = self.client.engine().extra_info(&pending_block.header);
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(uncle, difficulty, extra)
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}
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PendingUncleId {
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id: PendingOrBlock::Block(block_id),
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position,
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} => {
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let uncle_id = UncleId {
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block: block_id,
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position,
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};
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let uncle = match client.uncle(uncle_id) {
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Some(hdr) => match hdr.decode() {
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Ok(h) => h,
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Err(e) => return Err(errors::decode(e)),
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},
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None => {
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return Ok(None);
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}
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};
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let parent_difficulty =
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match client.block_total_difficulty(BlockId::Hash(*uncle.parent_hash())) {
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Some(difficulty) => difficulty,
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None => {
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return Ok(None);
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}
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};
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let extra = client.uncle_extra_info(uncle_id).expect(EXTRA_INFO_PROOF);
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(uncle, parent_difficulty, extra)
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}
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};
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let size = client
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.block(BlockId::Hash(uncle.hash()))
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.map(|block| block.into_inner().len())
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.map(U256::from);
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let block = RichBlock {
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inner: Block {
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hash: Some(uncle.hash()),
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size,
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parent_hash: *uncle.parent_hash(),
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uncles_hash: *uncle.uncles_hash(),
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author: *uncle.author(),
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miner: *uncle.author(),
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state_root: *uncle.state_root(),
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transactions_root: *uncle.transactions_root(),
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number: Some(uncle.number().into()),
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gas_used: *uncle.gas_used(),
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gas_limit: *uncle.gas_limit(),
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logs_bloom: Some(*uncle.log_bloom()),
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timestamp: uncle.timestamp().into(),
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difficulty: *uncle.difficulty(),
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total_difficulty: Some(uncle.difficulty() + parent_difficulty),
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receipts_root: *uncle.receipts_root(),
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extra_data: uncle.extra_data().clone().into(),
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seal_fields: uncle.seal().iter().cloned().map(Into::into).collect(),
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uncles: vec![],
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transactions: BlockTransactions::Hashes(vec![]),
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},
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extra_info: extra,
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};
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Ok(Some(block))
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}
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/// Get state for the given block number. Returns either the State or a block from which state
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/// can be retrieved.
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/// Note: When passing `BlockNumber::Pending` we fall back to the state of the current best block
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/// if no state found for the best pending block.
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fn get_state(&self, number: BlockNumber) -> StateOrBlock {
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match number {
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BlockNumber::Num(num) => BlockId::Number(num).into(),
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BlockNumber::Earliest => BlockId::Earliest.into(),
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BlockNumber::Latest => BlockId::Latest.into(),
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BlockNumber::Pending => {
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let info = self.client.chain_info();
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self.miner
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.pending_state(info.best_block_number)
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.map(|s| Box::new(s) as Box<dyn StateInfo>)
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.unwrap_or_else(|| {
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warn!("Asked for best pending state, but none found. Falling back to latest state");
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let (state, _) = self.client.latest_state_and_header();
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Box::new(state) as Box<dyn StateInfo>
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})
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.into()
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}
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}
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}
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/// Get the state and header of best pending block. On failure, fall back to the best imported
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/// blocks state&header.
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fn pending_state_and_header_with_fallback(&self) -> (T, Header) {
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let best_block_number = self.client.chain_info().best_block_number;
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let (maybe_state, maybe_header) = self.miner.pending_state(best_block_number).map_or_else(
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|| (None, None),
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|s| (Some(s), self.miner.pending_block_header(best_block_number)),
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);
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match (maybe_state, maybe_header) {
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(Some(state), Some(header)) => (state, header),
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_ => {
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warn!("Falling back to \"Latest\"");
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self.client.latest_state_and_header()
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}
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}
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}
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}
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pub fn pending_logs<M>(miner: &M, best_block: EthBlockNumber, filter: &EthcoreFilter) -> Vec<Log>
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where
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M: MinerService,
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{
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let receipts = miner.pending_receipts(best_block).unwrap_or_default();
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receipts
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.into_iter()
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.flat_map(|r| {
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let hash = r.transaction_hash;
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r.logs.into_iter().map(move |l| (hash, l))
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})
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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);
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log
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})
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.collect()
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}
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|
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fn check_known<C>(client: &C, number: BlockNumber) -> Result<()>
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where
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C: BlockChainClient,
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{
|
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use types::block_status::BlockStatus;
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|
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let id = match number {
|
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BlockNumber::Pending => return Ok(()),
|
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BlockNumber::Num(n) => BlockId::Number(n),
|
|
BlockNumber::Latest => BlockId::Latest,
|
|
BlockNumber::Earliest => BlockId::Earliest,
|
|
};
|
|
|
|
match client.block_status(id) {
|
|
BlockStatus::InChain => Ok(()),
|
|
_ => Err(errors::unknown_block()),
|
|
}
|
|
}
|
|
|
|
const MAX_QUEUE_SIZE_TO_MINE_ON: usize = 4; // because uncles go back 6.
|
|
|
|
impl<C, SN: ?Sized, S: ?Sized, M, EM, T: StateInfo + 'static> Eth for EthClient<C, SN, S, M, EM>
|
|
where
|
|
C: miner::BlockChainClient
|
|
+ StateClient<State = T>
|
|
+ ProvingBlockChainClient
|
|
+ Call<State = T>
|
|
+ EngineInfo
|
|
+ 'static,
|
|
SN: SnapshotService + 'static,
|
|
S: SyncProvider + 'static,
|
|
M: MinerService<State = T> + 'static,
|
|
EM: ExternalMinerService + 'static,
|
|
{
|
|
type Metadata = Metadata;
|
|
|
|
fn protocol_version(&self) -> Result<String> {
|
|
let version = self.sync.status().protocol_version.to_owned();
|
|
Ok(format!("{}", version))
|
|
}
|
|
|
|
fn syncing(&self) -> Result<SyncStatus> {
|
|
use ethcore::snapshot::RestorationStatus;
|
|
|
|
let status = self.sync.status();
|
|
let client = &self.client;
|
|
let snapshot_status = self.snapshot.restoration_status();
|
|
|
|
let (warping, warp_chunks_amount, warp_chunks_processed) = match snapshot_status {
|
|
RestorationStatus::Ongoing {
|
|
state_chunks,
|
|
block_chunks,
|
|
state_chunks_done,
|
|
block_chunks_done,
|
|
..
|
|
} => (
|
|
true,
|
|
Some(block_chunks + state_chunks),
|
|
Some(block_chunks_done + state_chunks_done),
|
|
),
|
|
_ => (false, None, None),
|
|
};
|
|
|
|
if warping || is_major_importing(Some(status.state), client.queue_info()) {
|
|
let chain_info = client.chain_info();
|
|
let current_block = U256::from(chain_info.best_block_number);
|
|
let highest_block = U256::from(
|
|
status
|
|
.highest_block_number
|
|
.unwrap_or(status.start_block_number),
|
|
);
|
|
|
|
let info = SyncInfo {
|
|
starting_block: status.start_block_number.into(),
|
|
current_block,
|
|
highest_block,
|
|
warp_chunks_amount: warp_chunks_amount
|
|
.map(|x| U256::from(x as u64))
|
|
.map(Into::into),
|
|
warp_chunks_processed: warp_chunks_processed
|
|
.map(|x| U256::from(x as u64))
|
|
.map(Into::into),
|
|
};
|
|
Ok(SyncStatus::Info(info))
|
|
} else {
|
|
Ok(SyncStatus::None)
|
|
}
|
|
}
|
|
|
|
fn author(&self) -> Result<H160> {
|
|
let miner = self.miner.authoring_params().author;
|
|
if miner == 0.into() {
|
|
(self.accounts)()
|
|
.first()
|
|
.cloned()
|
|
.ok_or_else(|| errors::account("No accounts were found", ""))
|
|
} else {
|
|
Ok(miner)
|
|
}
|
|
}
|
|
|
|
fn is_mining(&self) -> Result<bool> {
|
|
Ok(self.miner.is_currently_sealing())
|
|
}
|
|
|
|
fn chain_id(&self) -> Result<Option<U64>> {
|
|
Ok(self.client.signing_chain_id().map(U64::from))
|
|
}
|
|
|
|
fn hashrate(&self) -> Result<U256> {
|
|
Ok(self.external_miner.hashrate())
|
|
}
|
|
|
|
fn gas_price(&self) -> BoxFuture<U256> {
|
|
Box::new(future::ok(default_gas_price(
|
|
&*self.client,
|
|
&*self.miner,
|
|
self.options.gas_price_percentile,
|
|
)))
|
|
}
|
|
|
|
fn accounts(&self) -> Result<Vec<H160>> {
|
|
self.deprecation_notice
|
|
.print("eth_accounts", deprecated::msgs::ACCOUNTS);
|
|
|
|
let accounts = (self.accounts)();
|
|
Ok(accounts)
|
|
}
|
|
|
|
fn block_number(&self) -> Result<U256> {
|
|
Ok(U256::from(self.client.chain_info().best_block_number))
|
|
}
|
|
|
|
fn balance(&self, address: H160, num: Option<BlockNumber>) -> BoxFuture<U256> {
|
|
let num = num.unwrap_or_default();
|
|
|
|
try_bf!(check_known(&*self.client, num.clone()));
|
|
let res = match self.client.balance(&address, self.get_state(num)) {
|
|
Some(balance) => Ok(balance),
|
|
None => Err(errors::state_pruned()),
|
|
};
|
|
|
|
Box::new(future::done(res))
|
|
}
|
|
|
|
fn proof(
|
|
&self,
|
|
address: H160,
|
|
values: Vec<H256>,
|
|
num: Option<BlockNumber>,
|
|
) -> BoxFuture<EthAccount> {
|
|
try_bf!(errors::require_experimental(
|
|
self.options.allow_experimental_rpcs,
|
|
"1186"
|
|
));
|
|
|
|
let key1 = keccak(address);
|
|
|
|
let num = num.unwrap_or_default();
|
|
let id = match num {
|
|
BlockNumber::Num(n) => BlockId::Number(n),
|
|
BlockNumber::Earliest => BlockId::Earliest,
|
|
BlockNumber::Latest => BlockId::Latest,
|
|
BlockNumber::Pending => {
|
|
self.deprecation_notice
|
|
.print("`Pending`", Some("falling back to `Latest`"));
|
|
BlockId::Latest
|
|
}
|
|
};
|
|
|
|
try_bf!(check_known(&*self.client, num.clone()));
|
|
let res = match self.client.prove_account(key1, id) {
|
|
Some((proof, account)) => Ok(EthAccount {
|
|
address,
|
|
balance: account.balance,
|
|
nonce: account.nonce,
|
|
code_hash: account.code_hash,
|
|
storage_hash: account.storage_root,
|
|
account_proof: proof.into_iter().map(Bytes::new).collect(),
|
|
storage_proof: values
|
|
.into_iter()
|
|
.filter_map(|storage_index| {
|
|
let key2: H256 = storage_index;
|
|
self.client.prove_storage(key1, keccak(key2), id).map(
|
|
|(storage_proof, storage_value)| StorageProof {
|
|
key: key2.into(),
|
|
value: storage_value.into(),
|
|
proof: storage_proof.into_iter().map(Bytes::new).collect(),
|
|
},
|
|
)
|
|
})
|
|
.collect::<Vec<StorageProof>>(),
|
|
}),
|
|
None => Err(errors::state_pruned()),
|
|
};
|
|
|
|
Box::new(future::done(res))
|
|
}
|
|
|
|
fn storage_at(
|
|
&self,
|
|
address: H160,
|
|
position: U256,
|
|
num: Option<BlockNumber>,
|
|
) -> BoxFuture<H256> {
|
|
let num = num.unwrap_or_default();
|
|
|
|
try_bf!(check_known(&*self.client, num.clone()));
|
|
let res = match self
|
|
.client
|
|
.storage_at(&address, &H256::from(position), self.get_state(num))
|
|
{
|
|
Some(s) => Ok(s),
|
|
None => Err(errors::state_pruned()),
|
|
};
|
|
|
|
Box::new(future::done(res))
|
|
}
|
|
|
|
fn transaction_count(&self, address: H160, num: Option<BlockNumber>) -> BoxFuture<U256> {
|
|
let res = match num.unwrap_or_default() {
|
|
BlockNumber::Pending => {
|
|
let info = self.client.chain_info();
|
|
let nonce = self
|
|
.miner
|
|
.pending_state(info.best_block_number)
|
|
.and_then(|s| s.nonce(&address).ok())
|
|
.or_else(|| {
|
|
warn!("Fallback to `BlockId::Latest`");
|
|
self.client.nonce(&address, BlockId::Latest)
|
|
});
|
|
|
|
match nonce {
|
|
Some(nonce) => Ok(nonce),
|
|
None => Err(errors::database("latest nonce missing")),
|
|
}
|
|
}
|
|
number => {
|
|
try_bf!(check_known(&*self.client, number.clone()));
|
|
match self.client.nonce(&address, block_number_to_id(number)) {
|
|
Some(nonce) => Ok(nonce),
|
|
None => Err(errors::state_pruned()),
|
|
}
|
|
}
|
|
};
|
|
|
|
Box::new(future::done(res))
|
|
}
|
|
|
|
fn block_transaction_count_by_hash(&self, hash: H256) -> BoxFuture<Option<U256>> {
|
|
let trx_count = self
|
|
.client
|
|
.block(BlockId::Hash(hash))
|
|
.map(|block| block.transactions_count().into());
|
|
let result = Ok(trx_count).and_then(errors::check_block_gap(&*self.client, self.options));
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn block_transaction_count_by_number(&self, num: BlockNumber) -> BoxFuture<Option<U256>> {
|
|
Box::new(future::done(match num {
|
|
BlockNumber::Pending => Ok(Some(
|
|
self.miner
|
|
.pending_transaction_hashes(&*self.client)
|
|
.len()
|
|
.into(),
|
|
)),
|
|
_ => {
|
|
let trx_count = self
|
|
.client
|
|
.block(block_number_to_id(num.clone()))
|
|
.map(|block| block.transactions_count().into());
|
|
Ok(trx_count).and_then(errors::check_block_number_existence(
|
|
&*self.client,
|
|
num,
|
|
self.options,
|
|
))
|
|
}
|
|
}))
|
|
}
|
|
|
|
fn block_uncles_count_by_hash(&self, hash: H256) -> BoxFuture<Option<U256>> {
|
|
let uncle_count = self
|
|
.client
|
|
.block(BlockId::Hash(hash))
|
|
.map(|block| block.uncles_count().into());
|
|
let result = Ok(uncle_count).and_then(errors::check_block_gap(&*self.client, self.options));
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn block_uncles_count_by_number(&self, num: BlockNumber) -> BoxFuture<Option<U256>> {
|
|
Box::new(future::done(match num {
|
|
BlockNumber::Pending => Ok(Some(0.into())),
|
|
_ => {
|
|
let uncles_count = self
|
|
.client
|
|
.block(block_number_to_id(num.clone()))
|
|
.map(|block| block.uncles_count().into());
|
|
Ok(uncles_count).and_then(errors::check_block_number_existence(
|
|
&*self.client,
|
|
num,
|
|
self.options,
|
|
))
|
|
}
|
|
}))
|
|
}
|
|
|
|
fn code_at(&self, address: H160, num: Option<BlockNumber>) -> BoxFuture<Bytes> {
|
|
let address: Address = H160::into(address);
|
|
|
|
let num = num.unwrap_or_default();
|
|
try_bf!(check_known(&*self.client, num.clone()));
|
|
|
|
let res = match self.client.code(&address, self.get_state(num)) {
|
|
Some(code) => Ok(code.map_or_else(Bytes::default, Bytes::new)),
|
|
None => Err(errors::state_pruned()),
|
|
};
|
|
|
|
Box::new(future::done(res))
|
|
}
|
|
|
|
fn block_by_hash(&self, hash: H256, include_txs: bool) -> BoxFuture<Option<RichBlock>> {
|
|
let result = self
|
|
.rich_block(BlockId::Hash(hash).into(), include_txs)
|
|
.and_then(errors::check_block_gap(&*self.client, self.options));
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn block_by_number(&self, num: BlockNumber, include_txs: bool) -> BoxFuture<Option<RichBlock>> {
|
|
let result = self.rich_block(num.clone().into(), include_txs).and_then(
|
|
errors::check_block_number_existence(&*self.client, num, self.options),
|
|
);
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn transaction_by_hash(&self, hash: H256) -> BoxFuture<Option<Transaction>> {
|
|
let tx = try_bf!(self.transaction(PendingTransactionId::Hash(hash))).or_else(|| {
|
|
self.miner
|
|
.transaction(&hash)
|
|
.map(|t| Transaction::from_pending(t.pending().clone()))
|
|
});
|
|
let result = Ok(tx).and_then(errors::check_block_gap(&*self.client, self.options));
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn transaction_by_block_hash_and_index(
|
|
&self,
|
|
hash: H256,
|
|
index: Index,
|
|
) -> BoxFuture<Option<Transaction>> {
|
|
let id = PendingTransactionId::Location(
|
|
PendingOrBlock::Block(BlockId::Hash(hash)),
|
|
index.value(),
|
|
);
|
|
let result = self
|
|
.transaction(id)
|
|
.and_then(errors::check_block_gap(&*self.client, self.options));
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn transaction_by_block_number_and_index(
|
|
&self,
|
|
num: BlockNumber,
|
|
index: Index,
|
|
) -> BoxFuture<Option<Transaction>> {
|
|
let block_id = match num {
|
|
BlockNumber::Latest => PendingOrBlock::Block(BlockId::Latest),
|
|
BlockNumber::Earliest => PendingOrBlock::Block(BlockId::Earliest),
|
|
BlockNumber::Num(num) => PendingOrBlock::Block(BlockId::Number(num)),
|
|
BlockNumber::Pending => PendingOrBlock::Pending,
|
|
};
|
|
|
|
let transaction_id = PendingTransactionId::Location(block_id, index.value());
|
|
let result =
|
|
self.transaction(transaction_id)
|
|
.and_then(errors::check_block_number_existence(
|
|
&*self.client,
|
|
num,
|
|
self.options,
|
|
));
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn transaction_receipt(&self, hash: H256) -> BoxFuture<Option<Receipt>> {
|
|
let best_block = self.client.chain_info().best_block_number;
|
|
if let Some(receipt) = self.miner.pending_receipt(best_block, &hash) {
|
|
return Box::new(future::ok(Some(receipt.into())));
|
|
}
|
|
|
|
let receipt = self.client.transaction_receipt(TransactionId::Hash(hash));
|
|
let result = Ok(receipt.map(Into::into))
|
|
.and_then(errors::check_block_gap(&*self.client, self.options));
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn uncle_by_block_hash_and_index(
|
|
&self,
|
|
hash: H256,
|
|
index: Index,
|
|
) -> BoxFuture<Option<RichBlock>> {
|
|
let result = self
|
|
.uncle(PendingUncleId {
|
|
id: PendingOrBlock::Block(BlockId::Hash(hash)),
|
|
position: index.value(),
|
|
})
|
|
.and_then(errors::check_block_gap(&*self.client, self.options));
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn uncle_by_block_number_and_index(
|
|
&self,
|
|
num: BlockNumber,
|
|
index: Index,
|
|
) -> BoxFuture<Option<RichBlock>> {
|
|
let id = match num {
|
|
BlockNumber::Latest => PendingUncleId {
|
|
id: PendingOrBlock::Block(BlockId::Latest),
|
|
position: index.value(),
|
|
},
|
|
BlockNumber::Earliest => PendingUncleId {
|
|
id: PendingOrBlock::Block(BlockId::Earliest),
|
|
position: index.value(),
|
|
},
|
|
BlockNumber::Num(num) => PendingUncleId {
|
|
id: PendingOrBlock::Block(BlockId::Number(num)),
|
|
position: index.value(),
|
|
},
|
|
|
|
BlockNumber::Pending => PendingUncleId {
|
|
id: PendingOrBlock::Pending,
|
|
position: index.value(),
|
|
},
|
|
};
|
|
|
|
let result = self
|
|
.uncle(id)
|
|
.and_then(errors::check_block_number_existence(
|
|
&*self.client,
|
|
num,
|
|
self.options,
|
|
));
|
|
|
|
Box::new(future::done(result))
|
|
}
|
|
|
|
fn compilers(&self) -> Result<Vec<String>> {
|
|
Err(errors::deprecated(
|
|
"Compilation functionality is deprecated.".to_string(),
|
|
))
|
|
}
|
|
|
|
fn logs(&self, filter: Filter) -> BoxFuture<Vec<Log>> {
|
|
let include_pending = filter.to_block == Some(BlockNumber::Pending);
|
|
let filter: EthcoreFilter = match filter.try_into() {
|
|
Ok(value) => value,
|
|
Err(err) => return Box::new(future::err(err)),
|
|
};
|
|
let mut logs = match self.client.logs(filter.clone()) {
|
|
Ok(logs) => logs.into_iter().map(From::from).collect::<Vec<Log>>(),
|
|
Err(id) => return Box::new(future::err(errors::filter_block_not_found(id))),
|
|
};
|
|
|
|
if include_pending {
|
|
let best_block = self.client.chain_info().best_block_number;
|
|
let pending = pending_logs(&*self.miner, best_block, &filter);
|
|
logs.extend(pending);
|
|
}
|
|
|
|
let logs = limit_logs(logs, filter.limit);
|
|
|
|
Box::new(future::ok(logs))
|
|
}
|
|
|
|
fn work(&self, no_new_work_timeout: Option<u64>) -> Result<Work> {
|
|
let no_new_work_timeout = no_new_work_timeout.unwrap_or_default();
|
|
|
|
// check if we're still syncing and return empty strings in that case
|
|
{
|
|
let sync_status = self.sync.status();
|
|
let queue_info = self.client.queue_info();
|
|
let total_queue_size = queue_info.total_queue_size();
|
|
|
|
if sync_status.is_snapshot_syncing() || total_queue_size > MAX_QUEUE_SIZE_TO_MINE_ON {
|
|
trace!(target: "miner", "Syncing. Cannot give any work.");
|
|
return Err(errors::no_work());
|
|
}
|
|
|
|
// Otherwise spin until our submitted block has been included.
|
|
let timeout = Instant::now() + Duration::from_millis(1000);
|
|
while Instant::now() < timeout && self.client.queue_info().total_queue_size() > 0 {
|
|
thread::sleep(Duration::from_millis(1));
|
|
}
|
|
}
|
|
|
|
if self.miner.authoring_params().author.is_zero() {
|
|
warn!(target: "miner", "Cannot give work package - no author is configured. Use --author to configure!");
|
|
return Err(errors::no_author());
|
|
}
|
|
|
|
let work = self.miner.work_package(&*self.client).ok_or_else(|| {
|
|
warn!(target: "miner", "Cannot give work package - engine seals internally.");
|
|
errors::no_work_required()
|
|
})?;
|
|
|
|
let (pow_hash, number, timestamp, difficulty) = work;
|
|
let target = ethash::difficulty_to_boundary(&difficulty);
|
|
let seed_hash = self.seed_compute.lock().hash_block_number(number);
|
|
|
|
let now = SystemTime::now()
|
|
.duration_since(UNIX_EPOCH)
|
|
.unwrap_or_default()
|
|
.as_secs();
|
|
if no_new_work_timeout > 0 && timestamp + no_new_work_timeout < now {
|
|
Err(errors::no_new_work())
|
|
} else {
|
|
Ok(Work {
|
|
pow_hash,
|
|
seed_hash: seed_hash.into(),
|
|
target,
|
|
number: Some(number),
|
|
})
|
|
}
|
|
}
|
|
|
|
fn submit_work(&self, nonce: H64, pow_hash: H256, mix_hash: H256) -> Result<bool> {
|
|
match helpers::submit_work_detail(&self.client, &self.miner, nonce, pow_hash, mix_hash) {
|
|
Ok(_) => Ok(true),
|
|
Err(_) => Ok(false),
|
|
}
|
|
}
|
|
|
|
fn submit_hashrate(&self, rate: U256, id: H256) -> Result<bool> {
|
|
self.external_miner.submit_hashrate(rate, id);
|
|
Ok(true)
|
|
}
|
|
|
|
fn send_raw_transaction(&self, raw: Bytes) -> Result<H256> {
|
|
TypedTransaction::decode(&raw.into_vec())
|
|
.map_err(errors::rlp)
|
|
.and_then(|tx| SignedTransaction::new(tx).map_err(errors::transaction))
|
|
.and_then(|signed_transaction| {
|
|
FullDispatcher::dispatch_transaction(
|
|
&*self.client,
|
|
&*self.miner,
|
|
signed_transaction.into(),
|
|
false,
|
|
)
|
|
})
|
|
.map(Into::into)
|
|
}
|
|
|
|
fn submit_transaction(&self, raw: Bytes) -> Result<H256> {
|
|
self.send_raw_transaction(raw)
|
|
}
|
|
|
|
fn call(&self, request: CallRequest, num: Option<BlockNumber>) -> BoxFuture<Bytes> {
|
|
let request = CallRequest::into(request);
|
|
let signed = try_bf!(fake_sign::sign_call(request));
|
|
|
|
let num = num.unwrap_or_default();
|
|
|
|
let (mut state, header) = if num == BlockNumber::Pending {
|
|
self.pending_state_and_header_with_fallback()
|
|
} else {
|
|
let id = match num {
|
|
BlockNumber::Num(num) => BlockId::Number(num),
|
|
BlockNumber::Earliest => BlockId::Earliest,
|
|
BlockNumber::Latest => BlockId::Latest,
|
|
BlockNumber::Pending => unreachable!(), // Already covered
|
|
};
|
|
|
|
let state = try_bf!(self.client.state_at(id).ok_or_else(errors::state_pruned));
|
|
let header = try_bf!(self
|
|
.client
|
|
.block_header(id)
|
|
.ok_or_else(errors::state_pruned)
|
|
.and_then(|h| h.decode().map_err(errors::decode)));
|
|
|
|
(state, header)
|
|
};
|
|
|
|
let result = self
|
|
.client
|
|
.call(&signed, Default::default(), &mut state, &header);
|
|
|
|
Box::new(future::done(
|
|
result
|
|
.map_err(errors::call)
|
|
.and_then(|executed| match executed.exception {
|
|
Some(ref exception) => Err(errors::vm(exception, &executed.output)),
|
|
None => Ok(executed),
|
|
})
|
|
.map(|b| b.output.into()),
|
|
))
|
|
}
|
|
|
|
fn estimate_gas(&self, request: CallRequest, num: Option<BlockNumber>) -> BoxFuture<U256> {
|
|
let request = CallRequest::into(request);
|
|
let signed = try_bf!(fake_sign::sign_call(request));
|
|
let num = num.unwrap_or_default();
|
|
|
|
let (state, header) = if num == BlockNumber::Pending {
|
|
self.pending_state_and_header_with_fallback()
|
|
} else {
|
|
let id = match num {
|
|
BlockNumber::Num(num) => BlockId::Number(num),
|
|
BlockNumber::Earliest => BlockId::Earliest,
|
|
BlockNumber::Latest => BlockId::Latest,
|
|
BlockNumber::Pending => unreachable!(), // Already covered
|
|
};
|
|
|
|
let state = try_bf!(self.client.state_at(id).ok_or_else(errors::state_pruned));
|
|
let header = try_bf!(self
|
|
.client
|
|
.block_header(id)
|
|
.ok_or_else(errors::state_pruned)
|
|
.and_then(|h| h.decode().map_err(errors::decode)));
|
|
(state, header)
|
|
};
|
|
|
|
Box::new(future::done(
|
|
self.client
|
|
.estimate_gas(&signed, &state, &header)
|
|
.map_err(errors::call),
|
|
))
|
|
}
|
|
|
|
fn compile_lll(&self, _: String) -> Result<Bytes> {
|
|
Err(errors::deprecated(
|
|
"Compilation of LLL via RPC is deprecated".to_string(),
|
|
))
|
|
}
|
|
|
|
fn compile_serpent(&self, _: String) -> Result<Bytes> {
|
|
Err(errors::deprecated(
|
|
"Compilation of Serpent via RPC is deprecated".to_string(),
|
|
))
|
|
}
|
|
|
|
fn compile_solidity(&self, _: String) -> Result<Bytes> {
|
|
Err(errors::deprecated(
|
|
"Compilation of Solidity via RPC is deprecated".to_string(),
|
|
))
|
|
}
|
|
}
|