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Exposing engine extra info in block RPC (#3169) 

* Exposing extra info in RPC

* Proper serialization and client trait API
This commit is contained in:
Tomasz Drwięga 2016-11-04 17:35:02 +01:00 committed by Gav Wood
parent d37f4cc82f
commit f31d42d0c5
11 changed files with 153 additions and 70 deletions
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14
ethcore/src/client/client.rs
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@ -65,7 +65,7 @@ use evm::{Factory as EvmFactory, Schedule};
use miner::{Miner, MinerService};
use snapshot::{self, io as snapshot_io};
use factory::Factories;
use rlp::{View, UntrustedRlp};
use rlp::{decode, View, UntrustedRlp};
use state_db::StateDB;
use rand::OsRng;
@ -1189,6 +1189,18 @@ impl BlockChainClient for Client {
fn signing_network_id(&self) -> Option<u8> {
self.engine.signing_network_id(&self.latest_env_info())
}
fn block_extra_info(&self, id: BlockID) -> Option<BTreeMap<String, String>> {
self.block_header(id)
.map(|block| decode(&block))
.map(|header| self.engine.extra_info(&header))
}
fn uncle_extra_info(&self, id: UncleID) -> Option<BTreeMap<String, String>> {
self.uncle(id)
.map(|block| BlockView::new(&block).header())
.map(|header| self.engine.extra_info(&header))
}
}
impl MiningBlockChainClient for Client {

12
ethcore/src/client/test_client.rs
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@ -38,6 +38,7 @@ use evm::{Factory as EvmFactory, VMType, Schedule};
use miner::{Miner, MinerService, TransactionImportResult};
use spec::Spec;
use types::mode::Mode;
use views::BlockView;
use verification::queue::QueueInfo;
use block::{OpenBlock, SealedBlock};
@ -417,6 +418,10 @@ impl BlockChainClient for TestBlockChainClient {
None // Simple default.
}
fn uncle_extra_info(&self, _id: UncleID) -> Option<BTreeMap<String, String>> {
None
}
fn transaction_receipt(&self, id: TransactionID) -> Option<LocalizedReceipt> {
self.receipts.read().get(&id).cloned()
}
@ -459,6 +464,13 @@ impl BlockChainClient for TestBlockChainClient {
self.block_hash(id).and_then(|hash| self.blocks.read().get(&hash).cloned())
}
fn block_extra_info(&self, id: BlockID) -> Option<BTreeMap<String, String>> {
self.block(id)
.map(|block| BlockView::new(&block).header())
.map(|header| self.spec.engine.extra_info(&header))
}
fn block_status(&self, id: BlockID) -> BlockStatus {
match id {
BlockID::Number(number) if (number as usize) < self.blocks.read().len() => BlockStatus::InChain,

12
ethcore/src/client/traits.rs
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@ -29,13 +29,13 @@ use error::{ImportResult, CallError};
use receipt::LocalizedReceipt;
use trace::LocalizedTrace;
use evm::{Factory as EvmFactory, Schedule};
use types::ids::*;
use types::trace_filter::Filter as TraceFilter;
use executive::Executed;
use env_info::LastHashes;
use types::call_analytics::CallAnalytics;
use block_import_error::BlockImportError;
use ipc::IpcConfig;
use types::ids::*;
use types::trace_filter::Filter as TraceFilter;
use types::call_analytics::CallAnalytics;
use types::blockchain_info::BlockChainInfo;
use types::block_status::BlockStatus;
use types::mode::Mode;
@ -235,6 +235,12 @@ pub trait BlockChainClient : Sync + Send {
/// Set the mode.
fn set_mode(&self, mode: Mode);
/// Returns engine-related extra info for `BlockID`.
fn block_extra_info(&self, id: BlockID) -> Option<BTreeMap<String, String>>;
/// Returns engine-related extra info for `UncleID`.
fn uncle_extra_info(&self, id: UncleID) -> Option<BTreeMap<String, String>>;
}
/// Extended client interface used for mining

2
ethcore/src/engines/basic_authority.rs
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@ -81,7 +81,7 @@ impl Engine for BasicAuthority {
fn builtins(&self) -> &BTreeMap<Address, Builtin> { &self.builtins }
/// Additional engine-specific information for the user/developer concerning `header`.
fn extra_info(&self, _header: &Header) -> HashMap<String, String> { hash_map!["signature".to_owned() => "TODO".to_owned()] }
fn extra_info(&self, _header: &Header) -> BTreeMap<String, String> { map!["signature".to_owned() => "TODO".to_owned()] }
fn schedule(&self, _env_info: &EnvInfo) -> Schedule {
Schedule::new_homestead()

2
ethcore/src/engines/mod.rs
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@ -47,7 +47,7 @@ pub trait Engine : Sync + Send {
fn seal_fields(&self) -> usize { 0 }
/// Additional engine-specific information for the user/developer concerning `header`.
fn extra_info(&self, _header: &Header) -> HashMap<String, String> { HashMap::new() }
fn extra_info(&self, _header: &Header) -> BTreeMap<String, String> { BTreeMap::new() }
/// Additional information.
fn additional_params(&self) -> HashMap<String, String> { HashMap::new() }

4
ethcore/src/ethereum/ethash.rs
View File

@ -133,8 +133,8 @@ impl Engine for Ethash {
}
/// Additional engine-specific information for the user/developer concerning `header`.
fn extra_info(&self, header: &Header) -> HashMap<String, String> {
hash_map!["nonce".to_owned() => format!("0x{}", header.nonce().hex()), "mixHash".to_owned() => format!("0x{}", header.mix_hash().hex())]
fn extra_info(&self, header: &Header) -> BTreeMap<String, String> {
map!["nonce".to_owned() => format!("0x{}", header.nonce().hex()), "mixHash".to_owned() => format!("0x{}", header.mix_hash().hex())]
}
fn schedule(&self, env_info: &EnvInfo) -> Schedule {

2
ethcore/src/types/ids.rs
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@ -55,7 +55,7 @@ pub struct TraceId {
}
/// Uniquely identifies Uncle.
#[derive(Debug, Binary)]
#[derive(Debug, PartialEq, Eq, Copy, Clone, Binary)]
pub struct UncleID {
/// Block id.
pub block: BlockID,

110
rpc/src/v1/impls/eth.rs
View File

@ -44,7 +44,7 @@ use ethcore::snapshot::SnapshotService;
use self::ethash::SeedHashCompute;
use v1::traits::Eth;
use v1::types::{
Block, BlockTransactions, BlockNumber, Bytes, SyncStatus, SyncInfo,
RichBlock, Block, BlockTransactions, BlockNumber, Bytes, SyncStatus, SyncInfo,
Transaction, CallRequest, Index, Filter, Log, Receipt, Work,
H64 as RpcH64, H256 as RpcH256, H160 as RpcH160, U256 as RpcU256,
};
@ -53,6 +53,8 @@ use v1::helpers::dispatch::{default_gas_price, dispatch_transaction};
use v1::helpers::block_import::is_major_importing;
use v1::helpers::auto_args::Trailing;
const EXTRA_INFO_PROOF: &'static str = "Object exists in in blockchain (fetched earlier), extra_info is always available if object exists; qed";
/// Eth RPC options
pub struct EthClientOptions {
/// Returns receipt from pending blocks
@ -117,36 +119,39 @@ impl<C, SN: ?Sized, S: ?Sized, M, EM> EthClient<C, SN, S, M, EM> where
}
}
fn block(&self, id: BlockID, include_txs: bool) -> Result<Option<Block>, Error> {
fn block(&self, id: BlockID, include_txs: bool) -> Result<Option<RichBlock>, Error> {
let client = take_weak!(self.client);
match (client.block(id.clone()), client.block_total_difficulty(id)) {
(Some(bytes), Some(total_difficulty)) => {
let block_view = BlockView::new(&bytes);
let view = block_view.header_view();
let block = Block {
hash: Some(view.sha3().into()),
size: Some(bytes.len().into()),
parent_hash: view.parent_hash().into(),
uncles_hash: view.uncles_hash().into(),
author: view.author().into(),
miner: view.author().into(),
state_root: view.state_root().into(),
transactions_root: view.transactions_root().into(),
receipts_root: view.receipts_root().into(),
number: Some(view.number().into()),
gas_used: view.gas_used().into(),
gas_limit: view.gas_limit().into(),
logs_bloom: view.log_bloom().into(),
timestamp: view.timestamp().into(),
difficulty: view.difficulty().into(),
total_difficulty: total_difficulty.into(),
seal_fields: view.seal().into_iter().map(|f| rlp::decode(&f)).map(Bytes::new).collect(),
uncles: block_view.uncle_hashes().into_iter().map(Into::into).collect(),
transactions: match include_txs {
true => BlockTransactions::Full(block_view.localized_transactions().into_iter().map(Into::into).collect()),
false => BlockTransactions::Hashes(block_view.transaction_hashes().into_iter().map(Into::into).collect()),
let block = RichBlock {
block: Block {
hash: Some(view.sha3().into()),
size: Some(bytes.len().into()),
parent_hash: view.parent_hash().into(),
uncles_hash: view.uncles_hash().into(),
author: view.author().into(),
miner: view.author().into(),
state_root: view.state_root().into(),
transactions_root: view.transactions_root().into(),
receipts_root: view.receipts_root().into(),
number: Some(view.number().into()),
gas_used: view.gas_used().into(),
gas_limit: view.gas_limit().into(),
logs_bloom: view.log_bloom().into(),
timestamp: view.timestamp().into(),
difficulty: view.difficulty().into(),
total_difficulty: total_difficulty.into(),
seal_fields: view.seal().into_iter().map(|f| rlp::decode(&f)).map(Bytes::new).collect(),
uncles: block_view.uncle_hashes().into_iter().map(Into::into).collect(),
transactions: match include_txs {
true => BlockTransactions::Full(block_view.localized_transactions().into_iter().map(Into::into).collect()),
false => BlockTransactions::Hashes(block_view.transaction_hashes().into_iter().map(Into::into).collect()),
},
extra_data: Bytes::new(view.extra_data()),
},
extra_data: Bytes::new(view.extra_data())
extra_info: client.block_extra_info(id.clone()).expect(EXTRA_INFO_PROOF),
};
Ok(Some(block))
},
@ -161,7 +166,7 @@ impl<C, SN: ?Sized, S: ?Sized, M, EM> EthClient<C, SN, S, M, EM> where
}
}
fn uncle(&self, id: UncleID) -> Result<Option<Block>, Error> {
fn uncle(&self, id: UncleID) -> Result<Option<RichBlock>, Error> {
let client = take_weak!(self.client);
let uncle: BlockHeader = match client.uncle(id) {
Some(rlp) => rlp::decode(&rlp),
@ -172,27 +177,30 @@ impl<C, SN: ?Sized, S: ?Sized, M, EM> EthClient<C, SN, S, M, EM> where
None => { return Ok(None); }
};
let block = Block {
hash: Some(uncle.hash().into()),
size: None,
parent_hash: uncle.parent_hash().clone().into(),
uncles_hash: uncle.uncles_hash().clone().into(),
author: uncle.author().clone().into(),
miner: uncle.author().clone().into(),
state_root: uncle.state_root().clone().into(),
transactions_root: uncle.transactions_root().clone().into(),
number: Some(uncle.number().into()),
gas_used: uncle.gas_used().clone().into(),
gas_limit: uncle.gas_limit().clone().into(),
logs_bloom: uncle.log_bloom().clone().into(),
timestamp: uncle.timestamp().into(),
difficulty: uncle.difficulty().clone().into(),
total_difficulty: (uncle.difficulty().clone() + parent_difficulty).into(),
receipts_root: uncle.receipts_root().clone().into(),
extra_data: uncle.extra_data().clone().into(),
seal_fields: uncle.seal().clone().into_iter().map(|f| rlp::decode(&f)).map(Bytes::new).collect(),
uncles: vec![],
transactions: BlockTransactions::Hashes(vec![]),
let block = RichBlock {
block: Block {
hash: Some(uncle.hash().into()),
size: None,
parent_hash: uncle.parent_hash().clone().into(),
uncles_hash: uncle.uncles_hash().clone().into(),
author: uncle.author().clone().into(),
miner: uncle.author().clone().into(),
state_root: uncle.state_root().clone().into(),
transactions_root: uncle.transactions_root().clone().into(),
number: Some(uncle.number().into()),
gas_used: uncle.gas_used().clone().into(),
gas_limit: uncle.gas_limit().clone().into(),
logs_bloom: uncle.log_bloom().clone().into(),
timestamp: uncle.timestamp().into(),
difficulty: uncle.difficulty().clone().into(),
total_difficulty: (uncle.difficulty().clone() + parent_difficulty).into(),
receipts_root: uncle.receipts_root().clone().into(),
extra_data: uncle.extra_data().clone().into(),
seal_fields: uncle.seal().clone().into_iter().map(|f| rlp::decode(&f)).map(Bytes::new).collect(),
uncles: vec![],
transactions: BlockTransactions::Hashes(vec![]),
},
extra_info: client.uncle_extra_info(id).expect(EXTRA_INFO_PROOF),
};
Ok(Some(block))
}
@ -435,13 +443,13 @@ impl<C, SN: ?Sized, S: ?Sized, M, EM> Eth for EthClient<C, SN, S, M, EM> where
}
}
fn block_by_hash(&self, hash: RpcH256, include_txs: bool) -> Result<Option<Block>, Error> {
fn block_by_hash(&self, hash: RpcH256, include_txs: bool) -> Result<Option<RichBlock>, Error> {
try!(self.active());
self.block(BlockID::Hash(hash.into()), include_txs)
}
fn block_by_number(&self, num: BlockNumber, include_txs: bool) -> Result<Option<Block>, Error> {
fn block_by_number(&self, num: BlockNumber, include_txs: bool) -> Result<Option<RichBlock>, Error> {
try!(self.active());
self.block(num.into(), include_txs)
@ -483,13 +491,13 @@ impl<C, SN: ?Sized, S: ?Sized, M, EM> Eth for EthClient<C, SN, S, M, EM> where
}
}
fn uncle_by_block_hash_and_index(&self, hash: RpcH256, index: Index) -> Result<Option<Block>, Error> {
fn uncle_by_block_hash_and_index(&self, hash: RpcH256, index: Index) -> Result<Option<RichBlock>, Error> {
try!(self.active());
self.uncle(UncleID { block: BlockID::Hash(hash.into()), position: index.value() })
}
fn uncle_by_block_number_and_index(&self, num: BlockNumber, index: Index) -> Result<Option<Block>, Error> {
fn uncle_by_block_number_and_index(&self, num: BlockNumber, index: Index) -> Result<Option<RichBlock>, Error> {
try!(self.active());
self.uncle(UncleID { block: num.into(), position: index.value() })

10
rpc/src/v1/traits/eth.rs
View File

@ -17,7 +17,7 @@
//! Eth rpc interface.
use jsonrpc_core::*;
use v1::types::{Block, BlockNumber, Bytes, CallRequest, Filter, FilterChanges, Index};
use v1::types::{RichBlock, BlockNumber, Bytes, CallRequest, Filter, FilterChanges, Index};
use v1::types::{Log, Receipt, SyncStatus, Transaction, Work};
use v1::types::{H64, H160, H256, U256};
@ -68,11 +68,11 @@ build_rpc_trait! {
/// Returns block with given hash.
#[rpc(name = "eth_getBlockByHash")]
fn block_by_hash(&self, H256, bool) -> Result<Option<Block>, Error>;
fn block_by_hash(&self, H256, bool) -> Result<Option<RichBlock>, Error>;
/// Returns block with given number.
#[rpc(name = "eth_getBlockByNumber")]
fn block_by_number(&self, BlockNumber, bool) -> Result<Option<Block>, Error>;
fn block_by_number(&self, BlockNumber, bool) -> Result<Option<RichBlock>, Error>;
/// Returns the number of transactions sent from given address at given time (block number).
#[rpc(name = "eth_getTransactionCount")]
@ -128,11 +128,11 @@ build_rpc_trait! {
/// Returns an uncles at given block and index.
#[rpc(name = "eth_getUncleByBlockHashAndIndex")]
fn uncle_by_block_hash_and_index(&self, H256, Index) -> Result<Option<Block>, Error>;
fn uncle_by_block_hash_and_index(&self, H256, Index) -> Result<Option<RichBlock>, Error>;
/// Returns an uncles at given block and index.
#[rpc(name = "eth_getUncleByBlockNumberAndIndex")]
fn uncle_by_block_number_and_index(&self, BlockNumber, Index) -> Result<Option<Block>, Error>;
fn uncle_by_block_number_and_index(&self, BlockNumber, Index) -> Result<Option<RichBlock>, Error>;
/// Returns available compilers.
#[rpc(name = "eth_getCompilers")]

53
rpc/src/v1/types/block.rs
View File

@ -14,6 +14,8 @@
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use std::ops::Deref;
use std::collections::BTreeMap;
use serde::{Serialize, Serializer};
use v1::types::{Bytes, Transaction, H160, H256, H2048, U256};
@ -93,11 +95,45 @@ pub struct Block {
pub size: Option<U256>,
}
/// Block representation with additional info
#[derive(Debug)]
pub struct RichBlock {
/// Standard block
pub block: Block,
/// Engine-specific fields with additional description.
/// Should be included directly to serialized block object.
#[serde(skip_serializing)]
pub extra_info: BTreeMap<String, String>,
}
impl Deref for RichBlock {
type Target = Block;
fn deref(&self) -> &Self::Target {
&self.block
}
}
impl Serialize for RichBlock {
fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error> where S: Serializer {
use serde_json::{to_value, Value};
let serialized = (to_value(&self.block), to_value(&self.extra_info));
if let (Value::Object(mut block), Value::Object(extras)) = serialized {
// join two objects
block.extend(extras);
// and serialize
try!(block.serialize(serializer));
}
Ok(())
}
}
#[cfg(test)]
mod tests {
use std::collections::BTreeMap;
use serde_json;
use v1::types::{Transaction, H160, H256, H2048, Bytes, U256};
use super::{Block, BlockTransactions};
use v1::types::{Transaction, H64, H160, H256, H2048, Bytes, U256};
use super::{Block, RichBlock, BlockTransactions};
#[test]
fn test_serialize_block_transactions() {
@ -134,8 +170,17 @@ mod tests {
transactions: BlockTransactions::Hashes(vec![].into()),
size: Some(69.into()),
};
let serialized_block = serde_json::to_string(&block).unwrap();
let rich_block = RichBlock {
block: block,
extra_info: map![
"mixHash".into() => format!("0x{:?}", H256::default()),
"nonce".into() => format!("0x{:?}", H64::default())
],
};
let serialized_rich_block = serde_json::to_string(&rich_block).unwrap();
let serialized = serde_json::to_string(&block).unwrap();
assert_eq!(serialized, r#"{"hash":"0x0000000000000000000000000000000000000000000000000000000000000000","parentHash":"0x0000000000000000000000000000000000000000000000000000000000000000","sha3Uncles":"0x0000000000000000000000000000000000000000000000000000000000000000","author":"0x0000000000000000000000000000000000000000","miner":"0x0000000000000000000000000000000000000000","stateRoot":"0x0000000000000000000000000000000000000000000000000000000000000000","transactionsRoot":"0x0000000000000000000000000000000000000000000000000000000000000000","receiptsRoot":"0x0000000000000000000000000000000000000000000000000000000000000000","number":"0x0","gasUsed":"0x0","gasLimit":"0x0","extraData":"0x","logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","timestamp":"0x0","difficulty":"0x0","totalDifficulty":"0x0","sealFields":["0x","0x"],"uncles":[],"transactions":[],"size":"0x45"}"#);
assert_eq!(serialized_block, r#"{"hash":"0x0000000000000000000000000000000000000000000000000000000000000000","parentHash":"0x0000000000000000000000000000000000000000000000000000000000000000","sha3Uncles":"0x0000000000000000000000000000000000000000000000000000000000000000","author":"0x0000000000000000000000000000000000000000","miner":"0x0000000000000000000000000000000000000000","stateRoot":"0x0000000000000000000000000000000000000000000000000000000000000000","transactionsRoot":"0x0000000000000000000000000000000000000000000000000000000000000000","receiptsRoot":"0x0000000000000000000000000000000000000000000000000000000000000000","number":"0x0","gasUsed":"0x0","gasLimit":"0x0","extraData":"0x","logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","timestamp":"0x0","difficulty":"0x0","totalDifficulty":"0x0","sealFields":["0x","0x"],"uncles":[],"transactions":[],"size":"0x45"}"#);
assert_eq!(serialized_rich_block, r#"{"author":"0x0000000000000000000000000000000000000000","difficulty":"0x0","extraData":"0x","gasLimit":"0x0","gasUsed":"0x0","hash":"0x0000000000000000000000000000000000000000000000000000000000000000","logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","miner":"0x0000000000000000000000000000000000000000","mixHash":"0x0000000000000000000000000000000000000000000000000000000000000000","nonce":"0x0000000000000000","number":"0x0","parentHash":"0x0000000000000000000000000000000000000000000000000000000000000000","receiptsRoot":"0x0000000000000000000000000000000000000000000000000000000000000000","sealFields":["0x","0x"],"sha3Uncles":"0x0000000000000000000000000000000000000000000000000000000000000000","size":"0x45","stateRoot":"0x0000000000000000000000000000000000000000000000000000000000000000","timestamp":"0x0","totalDifficulty":"0x0","transactions":[],"transactionsRoot":"0x0000000000000000000000000000000000000000000000000000000000000000","uncles":[]}"#);
}
}

2
rpc/src/v1/types/mod.rs.in
View File

@ -35,7 +35,7 @@ mod work;
mod histogram;
pub use self::bytes::Bytes;
pub use self::block::{Block, BlockTransactions};
pub use self::block::{RichBlock, Block, BlockTransactions};
pub use self::block_number::BlockNumber;
pub use self::call_request::CallRequest;
pub use self::confirmations::{ConfirmationPayload, ConfirmationRequest, TransactionModification};