Merge branch 'master' of github.com:ethcore/parity

ethcore/src/client/client.rs

@@ -346,6 +346,22 @@ impl<V> Client<V> where V: Verifier {
 		imported
 	}
 
+	/// Attempt to get a copy of a specific block's state.
+	///
+	/// This will not fail if given BlockID::Latest.
+	/// Otherwise, this can fail (but may not) if the DB prunes state.
+	pub fn state_at(&self, id: BlockID) -> Option<State> {
+		// fast path for latest state.
+		if let BlockID::Latest = id.clone() {
+			return Some(self.state())
+		}
+
+		self.block_header(id).map(|header| {
+			let db = self.state_db.lock().unwrap().boxed_clone();
+			State::from_existing(db, HeaderView::new(&header).state_root(), self.engine.account_start_nonce())
+		})
+	}
+
 	/// Get a copy of the best block's state.
 	pub fn state(&self) -> State {
 		State::from_existing(self.state_db.lock().unwrap().boxed_clone(), HeaderView::new(&self.best_block_header()).state_root(), self.engine.account_start_nonce())
@@ -541,10 +557,11 @@ impl<V> BlockChainClient for Client<V> where V: Verifier {
 		Self::block_hash(&self.chain, id).and_then(|hash| self.chain.block_details(&hash)).map(|d| d.total_difficulty)
 	}
 
-	fn nonce(&self, address: &Address) -> U256 {
+	fn nonce(&self, address: &Address, id: BlockID) -> Option<U256> {
-		self.state().nonce(address)
+		self.state_at(id).map(|s| s.nonce(address))
 	}
 
+
 	fn block_hash(&self, id: BlockID) -> Option<H256> {
 		Self::block_hash(&self.chain, id)
 	}
@@ -553,12 +570,12 @@ impl<V> BlockChainClient for Client<V> where V: Verifier {
 		self.state().code(address)
 	}
 
-	fn balance(&self, address: &Address) -> U256 {
+	fn balance(&self, address: &Address, id: BlockID) -> Option<U256> {
-		self.state().balance(address)
+		self.state_at(id).map(|s| s.balance(address))
 	}
 
-	fn storage_at(&self, address: &Address, position: &H256) -> H256 {
+	fn storage_at(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256> {
-		self.state().storage_at(address, position)
+		self.state_at(id).map(|s| s.storage_at(address, position))
 	}
 
 	fn transaction(&self, id: TransactionID) -> Option<LocalizedTransaction> {

ethcore/src/client/mod.rs

@@ -65,8 +65,16 @@ pub trait BlockChainClient : Sync + Send {
 	/// Get block total difficulty.
 	fn block_total_difficulty(&self, id: BlockID) -> Option<U256>;
 
-	/// Get address nonce.
+	/// Attempt to get address nonce at given block.
-	fn nonce(&self, address: &Address) -> U256;
+	/// May not fail on BlockID::Latest.
+	fn nonce(&self, address: &Address, id: BlockID) -> Option<U256>;
+
+	/// Get address nonce at the latest block's state.
+	fn latest_nonce(&self, address: &Address) -> U256 {
+		self.nonce(address, BlockID::Latest)
+			.expect("nonce will return Some when given BlockID::Latest. nonce was given BlockID::Latest. \
+			Therefore nonce has returned Some; qed")
+	}
 
 	/// Get block hash.
 	fn block_hash(&self, id: BlockID) -> Option<H256>;
@@ -74,11 +82,31 @@ pub trait BlockChainClient : Sync + Send {
 	/// Get address code.
 	fn code(&self, address: &Address) -> Option<Bytes>;
 
-	/// Get address balance.
+	/// Get address balance at the given block's state.
-	fn balance(&self, address: &Address) -> U256;
+	///
+	/// May not return None if given BlockID::Latest.
+	/// Returns None if and only if the block's root hash has been pruned from the DB.
+	fn balance(&self, address: &Address, id: BlockID) -> Option<U256>;
 
-	/// Get value of the storage at given position.
+	/// Get address balance at the latest block's state.
-	fn storage_at(&self, address: &Address, position: &H256) -> H256;
+	fn latest_balance(&self, address: &Address) -> U256 {
+		self.balance(address, BlockID::Latest)
+			.expect("balance will return Some if given BlockID::Latest. balance was given BlockID::Latest \
+			Therefore balance has returned Some; qed")
+	}
+
+	/// Get value of the storage at given position at the given block's state.
+	///
+	/// May not return None if given BlockID::Latest.
+	/// Returns None if and only if the block's root hash has been pruned from the DB.
+	fn storage_at(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256>;
+
+	/// Get value of the storage at given position at the latest block's state.
+	fn latest_storage_at(&self, address: &Address, position: &H256) -> H256 {
+		self.storage_at(address, position, BlockID::Latest)
+			.expect("storage_at will return Some if given BlockID::Latest. storage_at was given BlockID::Latest. \
+			Therefore storage_at has returned Some; qed")
+	}
 
 	/// Get transaction with given hash.
 	fn transaction(&self, id: TransactionID) -> Option<LocalizedTransaction>;

ethcore/src/client/test_client.rs

@@ -245,20 +245,31 @@ impl BlockChainClient for TestBlockChainClient {
 		Self::block_hash(self, id)
 	}
 
-	fn nonce(&self, address: &Address) -> U256 {
+	fn nonce(&self, address: &Address, id: BlockID) -> Option<U256> {
-		self.nonces.read().unwrap().get(address).cloned().unwrap_or_else(U256::zero)
+		match id {
+			BlockID::Latest => Some(self.nonces.read().unwrap().get(address).cloned().unwrap_or_else(U256::zero)),
+			_ => None,
+		}
 	}
 
 	fn code(&self, address: &Address) -> Option<Bytes> {
 		self.code.read().unwrap().get(address).cloned()
 	}
 
-	fn balance(&self, address: &Address) -> U256 {
+	fn balance(&self, address: &Address, id: BlockID) -> Option<U256> {
-		self.balances.read().unwrap().get(address).cloned().unwrap_or_else(U256::zero)
+		if let BlockID::Latest = id {
+			Some(self.balances.read().unwrap().get(address).cloned().unwrap_or_else(U256::zero))
+		} else {
+			None
+		}
 	}
 
-	fn storage_at(&self, address: &Address, position: &H256) -> H256 {
+	fn storage_at(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256> {
-		self.storage.read().unwrap().get(&(address.clone(), position.clone())).cloned().unwrap_or_else(H256::new)
+		if let BlockID::Latest = id {
+			Some(self.storage.read().unwrap().get(&(address.clone(), position.clone())).cloned().unwrap_or_else(H256::new))
+		} else {
+			None
+		}
 	}
 
 	fn transaction(&self, _id: TransactionID) -> Option<LocalizedTransaction> {

miner/src/lib.rs

@@ -63,8 +63,8 @@ pub use external::{ExternalMiner, ExternalMinerService};
 use std::collections::BTreeMap;
 use util::{H256, U256, Address, Bytes};
 use ethcore::client::{BlockChainClient, Executed};
-use ethcore::block::{ClosedBlock};
+use ethcore::block::ClosedBlock;
-use ethcore::receipt::{Receipt};
+use ethcore::receipt::Receipt;
 use ethcore::error::{Error, ExecutionError};
 use ethcore::transaction::SignedTransaction;
 
@@ -154,7 +154,7 @@ pub trait MinerService : Send + Sync {
 	/// Suggested gas limit.
 	fn sensible_gas_limit(&self) -> U256 { x!(21000) }
 
-	/// Account balance
+	/// Latest account balance in pending state.
 	fn balance(&self, chain: &BlockChainClient, address: &Address) -> U256;
 
 	/// Call into contract code using pending state.

miner/src/miner.rs

@@ -167,8 +167,8 @@ impl Miner {
 		};
 		let mut queue = self.transaction_queue.lock().unwrap();
 		let fetch_account = |a: &Address| AccountDetails {
-			nonce: chain.nonce(a),
+			nonce: chain.latest_nonce(a),
-			balance: chain.balance(a),
+			balance: chain.latest_balance(a),
 		};
 		for hash in invalid_transactions.into_iter() {
 			queue.remove_invalid(&hash, &fetch_account);
@@ -290,17 +290,23 @@ impl MinerService for Miner {
 
 	fn balance(&self, chain: &BlockChainClient, address: &Address) -> U256 {
 		let sealing_work = self.sealing_work.lock().unwrap();
-		sealing_work.peek_last_ref().map_or_else(|| chain.balance(address), |b| b.block().fields().state.balance(address))
+		sealing_work.peek_last_ref().map_or_else(
+			|| chain.latest_balance(address),
+			|b| b.block().fields().state.balance(address)
+		)
 	}
 
 	fn storage_at(&self, chain: &BlockChainClient, address: &Address, position: &H256) -> H256 {
 		let sealing_work = self.sealing_work.lock().unwrap();
-		sealing_work.peek_last_ref().map_or_else(|| chain.storage_at(address, position), |b| b.block().fields().state.storage_at(address, position))
+		sealing_work.peek_last_ref().map_or_else(
+			|| chain.latest_storage_at(address, position),
+			|b| b.block().fields().state.storage_at(address, position)
+		)
 	}
 
 	fn nonce(&self, chain: &BlockChainClient, address: &Address) -> U256 {
 		let sealing_work = self.sealing_work.lock().unwrap();
-		sealing_work.peek_last_ref().map_or_else(|| chain.nonce(address), |b| b.block().fields().state.nonce(address))
+		sealing_work.peek_last_ref().map_or_else(|| chain.latest_nonce(address), |b| b.block().fields().state.nonce(address))
 	}
 
 	fn code(&self, chain: &BlockChainClient, address: &Address) -> Option<Bytes> {
@@ -545,8 +551,8 @@ impl MinerService for Miner {
 					let _sender = tx.sender();
 				}
 				let _ = self.import_transactions(txs, |a| AccountDetails {
-					nonce: chain.nonce(a),
+					nonce: chain.latest_nonce(a),
-					balance: chain.balance(a),
+					balance: chain.latest_balance(a),
 				});
 			});
 		}
@@ -566,7 +572,7 @@ impl MinerService for Miner {
 						})
 						.collect::<HashSet<Address>>();
 				for sender in to_remove.into_iter() {
-					transaction_queue.remove_all(sender, chain.nonce(&sender));
+					transaction_queue.remove_all(sender, chain.latest_nonce(&sender));
 				}
 			});
 		}

parity/dapps.rs

@@ -22,7 +22,7 @@ use ethsync::EthSync;
 use ethminer::{Miner, ExternalMiner};
 use util::RotatingLogger;
 use util::panics::PanicHandler;
-use util::keys::store::{AccountService};
+use util::keys::store::AccountService;
 use util::network_settings::NetworkSettings;
 use die::*;
 
@@ -100,7 +100,7 @@ pub fn setup_dapps_server(
 	server.add_delegate(NetClient::new(&deps.sync).to_delegate());
 	server.add_delegate(EthClient::new(&deps.client, &deps.sync, &deps.secret_store, &deps.miner, &deps.external_miner).to_delegate());
 	server.add_delegate(EthFilterClient::new(&deps.client, &deps.miner).to_delegate());
-	server.add_delegate(PersonalClient::new(&deps.secret_store).to_delegate());
+	server.add_delegate(PersonalClient::new(&deps.secret_store, &deps.client, &deps.miner).to_delegate());
 	server.add_delegate(EthcoreClient::new(&deps.miner, deps.logger.clone(), deps.settings.clone()).to_delegate());
 
 	let start_result = match auth {

parity/rpc.rs

@@ -24,7 +24,7 @@ use ethsync::EthSync;
 use ethminer::{Miner, ExternalMiner};
 use util::RotatingLogger;
 use util::panics::PanicHandler;
-use util::keys::store::{AccountService};
+use util::keys::store::AccountService;
 use util::network_settings::NetworkSettings;
 use die::*;
 use jsonipc;
@@ -106,7 +106,7 @@ fn setup_rpc_server(apis: Vec<&str>, deps: &Arc<Dependencies>) -> Server {
 			},
 			"personal" => {
 				modules.insert("personal".to_owned(), "1.0".to_owned());
-				server.add_delegate(PersonalClient::new(&deps.secret_store).to_delegate())
+				server.add_delegate(PersonalClient::new(&deps.secret_store, &deps.client, &deps.miner).to_delegate())
 			},
 			"ethcore" => {
 				modules.insert("ethcore".to_owned(), "1.0".to_owned());

rpc/src/v1/impls/eth.rs

@@ -22,11 +22,10 @@ use std::collections::HashSet;
 use std::sync::{Arc, Weak, Mutex};
 use std::ops::Deref;
 use ethsync::{SyncProvider, SyncState};
-use ethminer::{MinerService, AccountDetails, ExternalMinerService};
+use ethminer::{MinerService, ExternalMinerService};
 use jsonrpc_core::*;
 use util::numbers::*;
 use util::sha3::*;
-use util::bytes::{ToPretty};
 use util::rlp::{encode, decode, UntrustedRlp, View};
 use ethcore::client::{BlockChainClient, BlockID, TransactionID, UncleID};
 use ethcore::block::IsBlock;
@@ -39,6 +38,7 @@ use self::ethash::SeedHashCompute;
 use v1::traits::{Eth, EthFilter};
 use v1::types::{Block, BlockTransactions, BlockNumber, Bytes, SyncStatus, SyncInfo, Transaction, TransactionRequest, CallRequest, OptionalValue, Index, Filter, Log, Receipt};
 use v1::helpers::{PollFilter, PollManager};
+use v1::impls::{dispatch_transaction, sign_and_dispatch};
 use util::keys::store::AccountProvider;
 use serde;
 
@@ -155,33 +155,12 @@ impl<C, S, A, M, EM> EthClient<C, S, A, M, EM> where
 		}
 	}
 
-	fn sign_and_dispatch(&self, request: TransactionRequest, secret: H256) -> Result<Value, Error> {
-		let signed_transaction = {
-			let client = take_weak!(self.client);
-			let miner = take_weak!(self.miner);
-			EthTransaction {
-				nonce: request.nonce
-					.or_else(|| miner
-							 .last_nonce(&request.from)
-							 .map(|nonce| nonce + U256::one()))
-					.unwrap_or_else(|| client.nonce(&request.from)),
-					action: request.to.map_or(Action::Create, Action::Call),
-					gas: request.gas.unwrap_or_else(|| miner.sensible_gas_limit()),
-					gas_price: request.gas_price.unwrap_or_else(|| miner.sensible_gas_price()),
-					value: request.value.unwrap_or_else(U256::zero),
-					data: request.data.map_or_else(Vec::new, |d| d.to_vec()),
-			}.sign(&secret)
-		};
-		trace!(target: "miner", "send_transaction: dispatching tx: {}", encode(&signed_transaction).to_vec().pretty());
-		self.dispatch_transaction(signed_transaction)
-	}
-
 	fn sign_call(&self, request: CallRequest) -> Result<SignedTransaction, Error> {
 		let client = take_weak!(self.client);
 		let miner = take_weak!(self.miner);
 		let from = request.from.unwrap_or(Address::zero());
 		Ok(EthTransaction {
-			nonce: request.nonce.unwrap_or_else(|| client.nonce(&from)),
+			nonce: request.nonce.unwrap_or_else(|| client.latest_nonce(&from)),
 			action: request.to.map_or(Action::Create, Action::Call),
 			gas: request.gas.unwrap_or(U256::from(50_000_000)),
 			gas_price: request.gas_price.unwrap_or_else(|| miner.sensible_gas_price()),
@@ -189,30 +168,6 @@ impl<C, S, A, M, EM> EthClient<C, S, A, M, EM> where
 			data: request.data.map_or_else(Vec::new, |d| d.to_vec())
 		}.fake_sign(from))
 	}
-
-	fn dispatch_transaction(&self, signed_transaction: SignedTransaction) -> Result<Value, Error> {
-		let hash = signed_transaction.hash();
-
-		let import = {
-			let client = take_weak!(self.client);
-			let miner = take_weak!(self.miner);
-
-			miner.import_own_transaction(client.deref(), signed_transaction, |a: &Address| {
-				AccountDetails {
-					nonce: client.nonce(&a),
-					balance: client.balance(&a),
-				}
-			})
-		};
-
-		match import {
-			Ok(_) => to_value(&hash),
-			Err(e) => {
-				warn!("Error sending transaction: {:?}", e);
-				to_value(&H256::zero())
-			}
-		}
-	}
 }
 
 const MAX_QUEUE_SIZE_TO_MINE_ON: usize = 4;	// because uncles go back 6.
@@ -257,6 +212,17 @@ fn pending_logs<M>(miner: &M, filter: &EthcoreFilter) -> Vec<Log> where M: Miner
 	result
 }
 
+// must be in range [-32099, -32000]
+const UNSUPPORTED_REQUEST_CODE: i64 = -32000;
+
+fn make_unsupported_err() -> Error {
+	Error {
+		code: ErrorCode::ServerError(UNSUPPORTED_REQUEST_CODE),
+		message: "Unsupported request.".into(),
+		data: None
+	}
+}
+
 impl<C, S, A, M, EM> Eth for EthClient<C, S, A, M, EM> where
 	C: BlockChainClient + 'static,
 	S: SyncProvider + 'static,
@@ -341,18 +307,19 @@ impl<C, S, A, M, EM> Eth for EthClient<C, S, A, M, EM> where
 	fn balance(&self, params: Params) -> Result<Value, Error> {
 		from_params_default_second(params)
 			.and_then(|(address, block_number,)| match block_number {
-				BlockNumber::Latest => to_value(&take_weak!(self.client).balance(&address)),
 				BlockNumber::Pending => to_value(&take_weak!(self.miner).balance(take_weak!(self.client).deref(), &address)),
-				_ => Err(Error::invalid_params()),
+				id => to_value(&try!(take_weak!(self.client).balance(&address, id.into()).ok_or_else(make_unsupported_err))),
 			})
 	}
 
 	fn storage_at(&self, params: Params) -> Result<Value, Error> {
 		from_params_default_third::<Address, U256>(params)
 			.and_then(|(address, position, block_number,)| match block_number {
-				BlockNumber::Pending => to_value(&U256::from(take_weak!(self.miner).storage_at(take_weak!(self.client).deref(), &address, &H256::from(position)))),
+				BlockNumber::Pending => to_value(&U256::from(take_weak!(self.miner).storage_at(&*take_weak!(self.client), &address, &H256::from(position)))),
-				BlockNumber::Latest => to_value(&U256::from(take_weak!(self.client).storage_at(&address, &H256::from(position)))),
+				id => match take_weak!(self.client).storage_at(&address, &H256::from(position), id.into()) {
-				_ => Err(Error::invalid_params()),
+					Some(s) => to_value(&U256::from(s)),
+					None => Err(make_unsupported_err()), // None is only returned on unsupported requests.
+				}
 			})
 	}
 
@@ -360,8 +327,7 @@ impl<C, S, A, M, EM> Eth for EthClient<C, S, A, M, EM> where
 		from_params_default_second(params)
 			.and_then(|(address, block_number,)| match block_number {
 				BlockNumber::Pending => to_value(&take_weak!(self.miner).nonce(take_weak!(self.client).deref(), &address)),
-				BlockNumber::Latest => to_value(&take_weak!(self.client).nonce(&address)),
+				id => to_value(&take_weak!(self.client).nonce(&address, id.into())),
-				_ => Err(Error::invalid_params()),
 			})
 	}
 
@@ -533,29 +499,18 @@ impl<C, S, A, M, EM> Eth for EthClient<C, S, A, M, EM> where
 			.and_then(|(request, )| {
 				let accounts = take_weak!(self.accounts);
 				match accounts.account_secret(&request.from) {
-					Ok(secret) => self.sign_and_dispatch(request, secret),
+					Ok(secret) => sign_and_dispatch(&self.client, &self.miner, request, secret),
 					Err(_) => to_value(&H256::zero())
 				}
 		})
 	}
 
-	fn sign_and_send_transaction(&self, params: Params) -> Result<Value, Error> {
-		from_params::<(TransactionRequest, String)>(params)
-			.and_then(|(request, password)| {
-				let accounts = take_weak!(self.accounts);
-				match accounts.locked_account_secret(&request.from, &password) {
-					Ok(secret) => self.sign_and_dispatch(request, secret),
-					Err(_) => to_value(&H256::zero()),
-				}
-		})
-	}
-
 	fn send_raw_transaction(&self, params: Params) -> Result<Value, Error> {
 		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) => self.dispatch_transaction(signed_transaction),
+					Ok(signed_transaction) => dispatch_transaction(&*take_weak!(self.client), &*take_weak!(self.miner), signed_transaction),
 					Err(_) => to_value(&H256::zero()),
 				}
 		})

rpc/src/v1/impls/mod.rs

@@ -41,3 +41,59 @@ pub use self::ethcore::EthcoreClient;
 pub use self::traces::TracesClient;
 pub use self::rpc::RpcClient;
 
+use v1::types::TransactionRequest;
+use std::sync::Weak;
+use ethminer::{AccountDetails, MinerService};
+use ethcore::client::BlockChainClient;
+use ethcore::transaction::{Action, SignedTransaction, Transaction};
+use util::numbers::*;
+use util::rlp::encode;
+use util::bytes::ToPretty;
+use jsonrpc_core::{Error, to_value, Value};
+
+fn dispatch_transaction<C, M>(client: &C, miner: &M, signed_transaction: SignedTransaction) -> Result<Value, Error>
+	where C: BlockChainClient, M: MinerService {
+	let hash = signed_transaction.hash();
+
+	let import = {
+		miner.import_own_transaction(client, signed_transaction, |a: &Address| {
+			AccountDetails {
+				nonce: client.latest_nonce(&a),
+				balance: client.latest_balance(&a),
+			}
+		})
+	};
+
+	match import {
+		Ok(_) => to_value(&hash),
+		Err(e) => {
+			warn!("Error sending transaction: {:?}", e);
+			to_value(&H256::zero())
+		}
+	}
+}
+
+fn sign_and_dispatch<C, M>(client: &Weak<C>, miner: &Weak<M>, request: TransactionRequest, secret: H256) -> Result<Value, Error>
+	where C: BlockChainClient, M: MinerService {
+	let client = take_weak!(client);
+	let miner = take_weak!(miner);
+
+	let signed_transaction = {
+		Transaction {
+			nonce: request.nonce
+				.or_else(|| miner
+						 .last_nonce(&request.from)
+						 .map(|nonce| nonce + U256::one()))
+				.unwrap_or_else(|| client.latest_nonce(&request.from)),
+
+			action: request.to.map_or(Action::Create, Action::Call),
+			gas: request.gas.unwrap_or_else(|| miner.sensible_gas_limit()),
+			gas_price: request.gas_price.unwrap_or_else(|| miner.sensible_gas_price()),
+			value: request.value.unwrap_or_else(U256::zero),
+			data: request.data.map_or_else(Vec::new, |b| b.to_vec()),
+		}.sign(&secret)
+	};
+
+	trace!(target: "miner", "send_transaction: dispatching tx: {}", encode(&signed_transaction).to_vec().pretty());
+	dispatch_transaction(&*client, &*miner, signed_transaction)
+}

rpc/src/v1/impls/personal.rs

@@ -18,24 +18,35 @@
 use std::sync::{Arc, Weak};
 use jsonrpc_core::*;
 use v1::traits::Personal;
+use v1::types::TransactionRequest;
+use v1::impls::sign_and_dispatch;
 use util::keys::store::*;
-use util::Address;
+use util::numbers::*;
+use ethcore::client::BlockChainClient;
+use ethminer::MinerService;
 
 /// Account management (personal) rpc implementation.
-pub struct PersonalClient<A> where A: AccountProvider {
+pub struct PersonalClient<A, C, M>
+	where A: AccountProvider, C: BlockChainClient, M: MinerService {
 	accounts: Weak<A>,
+	client: Weak<C>,
+	miner: Weak<M>,
 }
 
-impl<A> PersonalClient<A> where A: AccountProvider {
+impl<A, C, M> PersonalClient<A, C, M>
+	where A: AccountProvider, C: BlockChainClient, M: MinerService {
 	/// Creates new PersonalClient
-	pub fn new(store: &Arc<A>) -> Self {
+	pub fn new(store: &Arc<A>, client: &Arc<C>, miner: &Arc<M>) -> Self {
 		PersonalClient {
 			accounts: Arc::downgrade(store),
+			client: Arc::downgrade(client),
+			miner: Arc::downgrade(miner),
 		}
 	}
 }
 
-impl<A> Personal for PersonalClient<A> where A: AccountProvider + 'static {
+impl<A: 'static, C: 'static, M: 'static> Personal for PersonalClient<A, C, M>
+	where A: AccountProvider, C: BlockChainClient, M: MinerService {
 	fn accounts(&self, _: Params) -> Result<Value, Error> {
 		let store = take_weak!(self.accounts);
 		match store.accounts() {
@@ -66,4 +77,15 @@ impl<A> Personal for PersonalClient<A> where A: AccountProvider + 'static {
 				}
 			})
 	}
+
+	fn sign_and_send_transaction(&self, params: Params) -> Result<Value, Error> {
+		from_params::<(TransactionRequest, String)>(params)
+			.and_then(|(request, password)| {
+				let accounts = take_weak!(self.accounts);
+				match accounts.locked_account_secret(&request.from, &password) {
+					Ok(secret) => sign_and_dispatch(&self.client, &self.miner, request, secret),
+					Err(_) => to_value(&H256::zero()),
+				}
+		})
+	}
 }

rpc/src/v1/tests/mocked/eth.rs

@@ -521,81 +521,6 @@ fn rpc_eth_send_transaction() {
 	assert_eq!(tester.io.handle_request(request.as_ref()), Some(response));
 }
 
-#[test]
-fn rpc_eth_sign_and_send_transaction_with_invalid_password() {
-	let account = TestAccount::new("password123");
-	let address = account.address();
-
-	let tester = EthTester::default();
-	tester.accounts_provider.accounts.write().unwrap().insert(address.clone(), account);
-	let request = r#"{
-		"jsonrpc": "2.0",
-		"method": "eth_signAndSendTransaction",
-		"params": [{
-			"from": ""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"",
-			"to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
-			"gas": "0x76c0",
-			"gasPrice": "0x9184e72a000",
-			"value": "0x9184e72a"
-		}, "password321"],
-		"id": 1
-	}"#;
-
-	let response = r#"{"jsonrpc":"2.0","result":"0x0000000000000000000000000000000000000000000000000000000000000000","id":1}"#;
-
-	assert_eq!(tester.io.handle_request(request.as_ref()), Some(response.into()));
-}
-
-#[test]
-fn rpc_eth_sign_and_send_transaction() {
-	let account = TestAccount::new("password123");
-	let address = account.address();
-	let secret = account.secret.clone();
-
-	let tester = EthTester::default();
-	tester.accounts_provider.accounts.write().unwrap().insert(address.clone(), account);
-	let request = r#"{
-		"jsonrpc": "2.0",
-		"method": "eth_signAndSendTransaction",
-		"params": [{
-			"from": ""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"",
-			"to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
-			"gas": "0x76c0",
-			"gasPrice": "0x9184e72a000",
-			"value": "0x9184e72a"
-		}, "password123"],
-		"id": 1
-	}"#;
-
-	let t = Transaction {
-		nonce: U256::zero(),
-		gas_price: U256::from(0x9184e72a000u64),
-		gas: U256::from(0x76c0),
-		action: Action::Call(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap()),
-		value: U256::from(0x9184e72au64),
-		data: vec![]
-	}.sign(&secret);
-
-	let response = r#"{"jsonrpc":"2.0","result":""#.to_owned() + format!("0x{:?}", t.hash()).as_ref() + r#"","id":1}"#;
-
-	assert_eq!(tester.io.handle_request(request.as_ref()), Some(response));
-
-	tester.miner.last_nonces.write().unwrap().insert(address.clone(), U256::zero());
-
-	let t = Transaction {
-		nonce: U256::one(),
-		gas_price: U256::from(0x9184e72a000u64),
-		gas: U256::from(0x76c0),
-		action: Action::Call(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap()),
-		value: U256::from(0x9184e72au64),
-		data: vec![]
-	}.sign(&secret);
-
-	let response = r#"{"jsonrpc":"2.0","result":""#.to_owned() + format!("0x{:?}", t.hash()).as_ref() + r#"","id":1}"#;
-
-	assert_eq!(tester.io.handle_request(request.as_ref()), Some(response));
-}
-
 #[test]
 #[ignore]
 fn rpc_eth_send_raw_transaction() {

rpc/src/v1/tests/mocked/personal.rs

@@ -15,11 +15,29 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 use std::sync::Arc;
+use std::str::FromStr;
+use std::collections::HashMap;
 use jsonrpc_core::IoHandler;
 use util::numbers::*;
 use util::keys::{TestAccount, TestAccountProvider};
 use v1::{PersonalClient, Personal};
-use std::collections::*;
+use v1::tests::helpers::TestMinerService;
+use ethcore::client::TestBlockChainClient;
+use ethcore::transaction::{Action, Transaction};
+
+struct PersonalTester {
+	accounts: Arc<TestAccountProvider>,
+	io: IoHandler,
+	miner: Arc<TestMinerService>,
+	// these unused fields are necessary to keep the data alive
+	// as the handler has only weak pointers.
+	_client: Arc<TestBlockChainClient>,
+}
+
+fn blockchain_client() -> Arc<TestBlockChainClient> {
+	let client = TestBlockChainClient::new();
+	Arc::new(client)
+}
 
 fn accounts_provider() -> Arc<TestAccountProvider> {
 	let accounts = HashMap::new();
@@ -27,18 +45,33 @@ fn accounts_provider() -> Arc<TestAccountProvider> {
 	Arc::new(ap)
 }
 
-fn setup() -> (Arc<TestAccountProvider>, IoHandler) {
+fn miner_service() -> Arc<TestMinerService> {
-	let test_provider = accounts_provider();
+	Arc::new(TestMinerService::default())
-	let personal = PersonalClient::new(&test_provider);
+}
+
+fn setup() -> PersonalTester {
+	let accounts = accounts_provider();
+	let client = blockchain_client();
+	let miner = miner_service();
+	let personal = PersonalClient::new(&accounts, &client, &miner);
+
 	let io = IoHandler::new();
 	io.add_delegate(personal.to_delegate());
-	(test_provider, io)
+
+	let tester = PersonalTester {
+		accounts: accounts,
+		io: io,
+		miner: miner,
+		_client: client,
+	};
+
+	tester
 }
 
 #[test]
 fn accounts() {
-	let (test_provider, io) = setup();
+	let tester = setup();
-	test_provider.accounts
+	tester.accounts.accounts
 		.write()
 		.unwrap()
 		.insert(Address::from(1), TestAccount::new("test"));
@@ -46,17 +79,17 @@ fn accounts() {
 	let request = r#"{"jsonrpc": "2.0", "method": "personal_listAccounts", "params": [], "id": 1}"#;
 	let response = r#"{"jsonrpc":"2.0","result":["0x0000000000000000000000000000000000000001"],"id":1}"#;
 
-	assert_eq!(io.handle_request(request), Some(response.to_owned()));
+	assert_eq!(tester.io.handle_request(request), Some(response.to_owned()));
 }
 
 #[test]
 fn new_account() {
-	let (test_provider, io) = setup();
+	let tester = setup();
 	let request = r#"{"jsonrpc": "2.0", "method": "personal_newAccount", "params": ["pass"], "id": 1}"#;
 
-	let res = io.handle_request(request);
+	let res = tester.io.handle_request(request);
 
-	let accounts = test_provider.accounts.read().unwrap();
+	let accounts = tester.accounts.accounts.read().unwrap();
 	assert_eq!(accounts.len(), 1);
 
 	let address = accounts
@@ -70,3 +103,77 @@ fn new_account() {
 	assert_eq!(res, Some(response));
 }
 
+#[test]
+fn sign_and_send_transaction_with_invalid_password() {
+	let account = TestAccount::new("password123");
+	let address = account.address();
+
+	let tester = setup();
+	tester.accounts.accounts.write().unwrap().insert(address.clone(), account);
+	let request = r#"{
+		"jsonrpc": "2.0",
+		"method": "personal_signAndSendTransaction",
+		"params": [{
+			"from": ""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"",
+			"to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
+			"gas": "0x76c0",
+			"gasPrice": "0x9184e72a000",
+			"value": "0x9184e72a"
+		}, "password321"],
+		"id": 1
+	}"#;
+
+	let response = r#"{"jsonrpc":"2.0","result":"0x0000000000000000000000000000000000000000000000000000000000000000","id":1}"#;
+
+	assert_eq!(tester.io.handle_request(request.as_ref()), Some(response.into()));
+}
+
+#[test]
+fn sign_and_send_transaction() {
+	let account = TestAccount::new("password123");
+	let address = account.address();
+	let secret = account.secret.clone();
+
+	let tester = setup();
+	tester.accounts.accounts.write().unwrap().insert(address.clone(), account);
+	let request = r#"{
+		"jsonrpc": "2.0",
+		"method": "personal_signAndSendTransaction",
+		"params": [{
+			"from": ""#.to_owned() + format!("0x{:?}", address).as_ref() + r#"",
+			"to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567",
+			"gas": "0x76c0",
+			"gasPrice": "0x9184e72a000",
+			"value": "0x9184e72a"
+		}, "password123"],
+		"id": 1
+	}"#;
+
+	let t = Transaction {
+		nonce: U256::zero(),
+		gas_price: U256::from(0x9184e72a000u64),
+		gas: U256::from(0x76c0),
+		action: Action::Call(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap()),
+		value: U256::from(0x9184e72au64),
+		data: vec![]
+	}.sign(&secret);
+
+	let response = r#"{"jsonrpc":"2.0","result":""#.to_owned() + format!("0x{:?}", t.hash()).as_ref() + r#"","id":1}"#;
+
+	assert_eq!(tester.io.handle_request(request.as_ref()), Some(response));
+
+	tester.miner.last_nonces.write().unwrap().insert(address.clone(), U256::zero());
+
+	let t = Transaction {
+		nonce: U256::one(),
+		gas_price: U256::from(0x9184e72a000u64),
+		gas: U256::from(0x76c0),
+		action: Action::Call(Address::from_str("d46e8dd67c5d32be8058bb8eb970870f07244567").unwrap()),
+		value: U256::from(0x9184e72au64),
+		data: vec![]
+	}.sign(&secret);
+
+	let response = r#"{"jsonrpc":"2.0","result":""#.to_owned() + format!("0x{:?}", t.hash()).as_ref() + r#"","id":1}"#;
+
+	assert_eq!(tester.io.handle_request(request.as_ref()), Some(response));
+}

rpc/src/v1/tests/mod.rs

@@ -3,6 +3,4 @@
 pub mod helpers;
 
 #[cfg(test)]
-mod mocked;
+mod mocked;
-#[cfg(test)]
-mod eth;

rpc/src/v1/traits/eth.rs

@@ -80,9 +80,6 @@ pub trait Eth: Sized + Send + Sync + 'static {
 	/// Sends transaction.
 	fn send_transaction(&self, _: Params) -> Result<Value, Error> { rpc_unimplemented!() }
 
-	/// Sends transaction and signs it in single call. The account is not unlocked in such case.
-	fn sign_and_send_transaction(&self, _: Params) -> Result<Value, Error> { rpc_unimplemented!() }
-
 	/// Sends signed transaction.
 	fn send_raw_transaction(&self, _: Params) -> Result<Value, Error> { rpc_unimplemented!() }
 
@@ -155,7 +152,6 @@ pub trait Eth: Sized + Send + Sync + 'static {
 		delegate.add_method("eth_getCode", Eth::code_at);
 		delegate.add_method("eth_sign", Eth::sign);
 		delegate.add_method("eth_sendTransaction", Eth::send_transaction);
-		delegate.add_method("eth_signAndSendTransaction", Eth::sign_and_send_transaction);
 		delegate.add_method("eth_sendRawTransaction", Eth::send_raw_transaction);
 		delegate.add_method("eth_call", Eth::call);
 		delegate.add_method("eth_estimateGas", Eth::estimate_gas);

rpc/src/v1/traits/personal.rs

@@ -30,12 +30,16 @@ pub trait Personal: Sized + Send + Sync + 'static {
 	/// Unlocks specified account for use (can only be one unlocked account at one moment)
 	fn unlock_account(&self, _: Params) -> Result<Value, Error> { rpc_unimplemented!() }
 
+	/// Sends transaction and signs it in single call. The account is not unlocked in such case.
+	fn sign_and_send_transaction(&self, _: Params) -> Result<Value, Error> { rpc_unimplemented!() }
+
 	/// Should be used to convert object to io delegate.
 	fn to_delegate(self) -> IoDelegate<Self> {
 		let mut delegate = IoDelegate::new(Arc::new(self));
 		delegate.add_method("personal_listAccounts", Personal::accounts);
 		delegate.add_method("personal_newAccount", Personal::new_account);
 		delegate.add_method("personal_unlockAccount", Personal::unlock_account);
+		delegate.add_method("personal_signAndSendTransaction", Personal::sign_and_send_transaction);
 		delegate
 	}
 }

rpc/src/v1/types/bytes.rs

@@ -28,7 +28,7 @@ impl Bytes {
 	pub fn new(bytes: Vec<u8>) -> Bytes {
 		Bytes(bytes)
 	}
-	pub fn to_vec(self) -> Vec<u8> { let Bytes(x) = self; x }
+	pub fn to_vec(self) -> Vec<u8> { self.0 }
 }
 
 impl Serialize for Bytes {

sync/src/chain.rs

@@ -900,8 +900,8 @@ impl ChainSync {
 		}
 		let chain = io.chain();
 		let fetch_account = |a: &Address| AccountDetails {
-			nonce: chain.nonce(a),
+			nonce: chain.latest_nonce(a),
-			balance: chain.balance(a),
+			balance: chain.latest_balance(a),
 		};
 		let _ = self.miner.import_transactions(transactions, fetch_account);
 		Ok(())