2016-04-11 21:06:32 +02:00
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// 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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//! Ethcore-specific rpc implementation.
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2016-05-28 16:52:33 +02:00
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use util::{U256, Address, RotatingLogger, FixedHash, Uint};
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2016-04-21 19:19:42 +02:00
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use util::network_settings::NetworkSettings;
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2016-05-02 16:12:01 +02:00
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use util::misc::version_data;
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2016-04-11 21:06:32 +02:00
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use std::sync::{Arc, Weak};
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2016-04-19 09:58:26 +02:00
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use std::ops::Deref;
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2016-04-21 19:19:42 +02:00
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use std::collections::BTreeMap;
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2016-04-11 21:06:32 +02:00
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use jsonrpc_core::*;
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2016-05-31 21:03:44 +02:00
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use serde;
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2016-05-31 21:31:42 +02:00
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use ethcore::miner::MinerService;
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2016-05-31 21:03:44 +02:00
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use ethcore::state_diff::StateDiff;
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use ethcore::account_diff::{Diff, Existance};
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2016-06-02 11:40:39 +02:00
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use ethcore::transaction::{Transaction as EthTransaction, SignedTransaction, Action};
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2016-05-31 21:03:44 +02:00
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use ethcore::client::{BlockChainClient, CallAnalytics};
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2016-05-29 00:58:52 +02:00
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use ethcore::trace::VMTrace;
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use v1::traits::Ethcore;
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2016-05-28 16:52:33 +02:00
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use v1::types::{Bytes, CallRequest};
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2016-04-11 21:06:32 +02:00
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/// Ethcore implementation.
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2016-05-28 16:52:33 +02:00
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pub struct EthcoreClient<C, M> where
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C: BlockChainClient,
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M: MinerService {
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client: Weak<C>,
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2016-04-11 21:06:32 +02:00
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miner: Weak<M>,
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logger: Arc<RotatingLogger>,
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settings: Arc<NetworkSettings>,
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2016-04-11 21:06:32 +02:00
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}
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2016-05-28 16:52:33 +02:00
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impl<C, M> EthcoreClient<C, M> where C: BlockChainClient, M: MinerService {
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2016-04-11 21:06:32 +02:00
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/// Creates new `EthcoreClient`.
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2016-05-28 16:52:33 +02:00
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pub fn new(client: &Arc<C>, miner: &Arc<M>, logger: Arc<RotatingLogger>, settings: Arc<NetworkSettings>) -> Self {
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EthcoreClient {
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client: Arc::downgrade(client),
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miner: Arc::downgrade(miner),
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logger: logger,
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settings: settings,
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2016-04-11 21:06:32 +02:00
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}
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}
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2016-05-28 16:52:33 +02:00
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// TODO: share with eth.rs
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fn sign_call(&self, request: CallRequest) -> Result<SignedTransaction, Error> {
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let client = take_weak!(self.client);
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let miner = 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(|| miner.sensible_gas_price()),
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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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2016-04-11 21:06:32 +02:00
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}
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2016-05-29 00:58:52 +02:00
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fn vm_trace_to_object(t: &VMTrace) -> Value {
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let mut ret = BTreeMap::new();
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ret.insert("code".to_owned(), to_value(&t.code).unwrap());
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let mut subs = t.subs.iter();
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let mut next_sub = subs.next();
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let ops = t.operations
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.iter()
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.enumerate()
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.map(|(i, op)| {
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let mut m = map![
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"pc".to_owned() => to_value(&op.pc).unwrap(),
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"cost".to_owned() => match op.gas_cost <= U256::from(!0u64) {
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true => to_value(&op.gas_cost.low_u64()),
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false => to_value(&op.gas_cost),
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}.unwrap()
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];
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if let Some(ref ex) = op.executed {
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let mut em = map![
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"used".to_owned() => to_value(&ex.gas_used.low_u64()).unwrap(),
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"push".to_owned() => to_value(&ex.stack_push).unwrap()
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];
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if let Some(ref md) = ex.mem_diff {
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em.insert("mem".to_owned(), Value::Object(map![
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"off".to_owned() => to_value(&md.offset).unwrap(),
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"data".to_owned() => to_value(&md.data).unwrap()
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]));
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}
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if let Some(ref sd) = ex.store_diff {
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em.insert("store".to_owned(), Value::Object(map![
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"key".to_owned() => to_value(&sd.location).unwrap(),
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"val".to_owned() => to_value(&sd.value).unwrap()
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]));
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}
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m.insert("ex".to_owned(), Value::Object(em));
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}
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if next_sub.is_some() && next_sub.unwrap().parent_step == i {
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m.insert("sub".to_owned(), vm_trace_to_object(next_sub.unwrap()));
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next_sub = subs.next();
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}
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Value::Object(m)
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})
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.collect::<Vec<_>>();
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ret.insert("ops".to_owned(), Value::Array(ops));
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Value::Object(ret)
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}
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2016-05-31 21:03:44 +02:00
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fn diff_to_object<T>(d: &Diff<T>) -> Value where T: serde::Serialize + Eq {
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let mut ret = BTreeMap::new();
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match *d {
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Diff::Same => {
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ret.insert("diff".to_owned(), Value::String("=".to_owned()));
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}
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Diff::Born(ref x) => {
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ret.insert("diff".to_owned(), Value::String("+".to_owned()));
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ret.insert("+".to_owned(), to_value(x).unwrap());
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}
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Diff::Died(ref x) => {
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ret.insert("diff".to_owned(), Value::String("-".to_owned()));
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ret.insert("-".to_owned(), to_value(x).unwrap());
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}
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Diff::Changed(ref from, ref to) => {
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ret.insert("diff".to_owned(), Value::String("*".to_owned()));
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ret.insert("-".to_owned(), to_value(from).unwrap());
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ret.insert("+".to_owned(), to_value(to).unwrap());
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}
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};
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Value::Object(ret)
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}
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fn state_diff_to_object(t: &StateDiff) -> Value {
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Value::Object(t.iter().map(|(address, account)| {
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(address.hex(), Value::Object(map![
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"existance".to_owned() => Value::String(match account.existance() {
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Existance::Born => "+",
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Existance::Alive => ".",
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Existance::Died => "-",
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}.to_owned()),
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"balance".to_owned() => diff_to_object(&account.balance),
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"nonce".to_owned() => diff_to_object(&account.nonce),
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"code".to_owned() => diff_to_object(&account.code),
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"storage".to_owned() => Value::Object(account.storage.iter().map(|(key, val)| {
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(key.hex(), diff_to_object(&val))
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}).collect::<BTreeMap<_, _>>())
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]))
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}).collect::<BTreeMap<_, _>>())
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}
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2016-05-28 16:52:33 +02:00
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impl<C, M> Ethcore for EthcoreClient<C, M> where C: BlockChainClient + 'static, M: MinerService + 'static {
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2016-04-13 00:04:40 +02:00
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fn set_min_gas_price(&self, params: Params) -> Result<Value, Error> {
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from_params::<(U256,)>(params).and_then(|(gas_price,)| {
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take_weak!(self.miner).set_minimal_gas_price(gas_price);
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to_value(&true)
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})
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}
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fn set_gas_floor_target(&self, params: Params) -> Result<Value, Error> {
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from_params::<(U256,)>(params).and_then(|(gas_floor_target,)| {
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take_weak!(self.miner).set_gas_floor_target(gas_floor_target);
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to_value(&true)
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})
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}
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fn set_extra_data(&self, params: Params) -> Result<Value, Error> {
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from_params::<(Bytes,)>(params).and_then(|(extra_data,)| {
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take_weak!(self.miner).set_extra_data(extra_data.to_vec());
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to_value(&true)
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})
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}
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fn set_author(&self, params: Params) -> Result<Value, Error> {
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from_params::<(Address,)>(params).and_then(|(author,)| {
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take_weak!(self.miner).set_author(author);
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to_value(&true)
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})
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}
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2016-04-18 23:13:38 +02:00
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fn set_transactions_limit(&self, params: Params) -> Result<Value, Error> {
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from_params::<(usize,)>(params).and_then(|(limit,)| {
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take_weak!(self.miner).set_transactions_limit(limit);
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to_value(&true)
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})
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}
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fn transactions_limit(&self, _: Params) -> Result<Value, Error> {
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to_value(&take_weak!(self.miner).transactions_limit())
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}
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2016-04-13 00:04:40 +02:00
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fn min_gas_price(&self, _: Params) -> Result<Value, Error> {
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to_value(&take_weak!(self.miner).minimal_gas_price())
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}
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2016-04-11 21:06:32 +02:00
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fn extra_data(&self, _: Params) -> Result<Value, Error> {
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to_value(&Bytes::new(take_weak!(self.miner).extra_data()))
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}
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fn gas_floor_target(&self, _: Params) -> Result<Value, Error> {
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to_value(&take_weak!(self.miner).gas_floor_target())
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}
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2016-04-19 09:58:26 +02:00
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fn dev_logs(&self, _params: Params) -> Result<Value, Error> {
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let logs = self.logger.logs();
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2016-04-19 19:08:13 +02:00
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to_value(&logs.deref().as_slice())
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}
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fn dev_logs_levels(&self, _params: Params) -> Result<Value, Error> {
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to_value(&self.logger.levels())
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}
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2016-04-21 19:19:42 +02:00
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fn net_chain(&self, _params: Params) -> Result<Value, Error> {
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to_value(&self.settings.chain)
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}
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fn net_max_peers(&self, _params: Params) -> Result<Value, Error> {
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to_value(&self.settings.max_peers)
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}
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fn net_port(&self, _params: Params) -> Result<Value, Error> {
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to_value(&self.settings.network_port)
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}
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fn node_name(&self, _params: Params) -> Result<Value, Error> {
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to_value(&self.settings.name)
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}
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fn rpc_settings(&self, _params: Params) -> Result<Value, Error> {
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let mut map = BTreeMap::new();
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map.insert("enabled".to_owned(), Value::Bool(self.settings.rpc_enabled));
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map.insert("interface".to_owned(), Value::String(self.settings.rpc_interface.clone()));
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map.insert("port".to_owned(), Value::U64(self.settings.rpc_port as u64));
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Ok(Value::Object(map))
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}
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2016-05-02 16:12:01 +02:00
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fn default_extra_data(&self, _params: Params) -> Result<Value, Error> {
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let version = version_data();
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to_value(&Bytes::new(version))
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2016-05-02 16:12:01 +02:00
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}
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2016-05-28 16:52:33 +02:00
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fn vm_trace_call(&self, params: Params) -> Result<Value, Error> {
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trace!(target: "jsonrpc", "vm_trace_call: {:?}", params);
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from_params(params)
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.and_then(|(request,)| {
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let signed = try!(self.sign_call(request));
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2016-05-31 21:03:44 +02:00
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let r = take_weak!(self.client).call(&signed, CallAnalytics{ vm_tracing: true, diffing: false });
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2016-05-29 00:58:52 +02:00
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if let Ok(executed) = r {
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if let Some(vm_trace) = executed.vm_trace {
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return Ok(vm_trace_to_object(&vm_trace));
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}
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}
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Ok(Value::Null)
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2016-05-28 16:52:33 +02:00
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})
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}
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2016-05-31 21:03:44 +02:00
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fn diff_call(&self, params: Params) -> Result<Value, Error> {
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trace!(target: "jsonrpc", "diff_call: {:?}", params);
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from_params(params)
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.and_then(|(request,)| {
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let signed = try!(self.sign_call(request));
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let r = take_weak!(self.client).call(&signed, CallAnalytics{ vm_tracing: false, diffing: true });
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if let Ok(executed) = r {
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if let Some(state_diff) = executed.diff {
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return Ok(state_diff_to_object(&state_diff));
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}
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}
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Ok(Value::Null)
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})
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}
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2016-04-11 21:06:32 +02:00
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}
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