openethereum/parity/rpc_apis.rs
2017-04-03 12:55:31 +02:00

496 lines
14 KiB
Rust

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// 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::cmp::PartialEq;
use std::collections::BTreeMap;
use std::collections::HashSet;
use std::str::FromStr;
use std::sync::Arc;
pub use ethcore_rpc::SignerService;
use ethcore::account_provider::AccountProvider;
use ethcore::client::Client;
use ethcore::miner::{Miner, ExternalMiner};
use ethcore::snapshot::SnapshotService;
use ethcore_rpc::{Metadata, NetworkSettings};
use ethcore_rpc::informant::{ActivityNotifier, Middleware, RpcStats, ClientNotifier};
use ethcore_rpc::dispatch::{FullDispatcher, LightDispatcher};
use ethsync::{ManageNetwork, SyncProvider, LightSync};
use hash_fetch::fetch::Client as FetchClient;
use jsonrpc_core::{MetaIoHandler};
use light::{TransactionQueue as LightTransactionQueue, Cache as LightDataCache};
use updater::Updater;
use util::{Mutex, RwLock};
use ethcore_logger::RotatingLogger;
#[derive(Debug, PartialEq, Clone, Eq, Hash)]
pub enum Api {
/// Web3 (Safe)
Web3,
/// Net (Safe)
Net,
/// Eth (Safe)
Eth,
/// Geth-compatible "personal" API (DEPRECATED; only used in `--geth` mode.)
Personal,
/// Signer - Confirm transactions in Signer (UNSAFE: Passwords, List of transactions)
Signer,
/// Parity - Custom extensions (Safe)
Parity,
/// Parity Accounts extensions (UNSAFE: Passwords, Side Effects (new account))
ParityAccounts,
/// Parity - Set methods (UNSAFE: Side Effects affecting node operation)
ParitySet,
/// Traces (Safe)
Traces,
/// Rpc (Safe)
Rpc,
}
impl FromStr for Api {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
use self::Api::*;
match s {
"web3" => Ok(Web3),
"net" => Ok(Net),
"eth" => Ok(Eth),
"personal" => Ok(Personal),
"signer" => Ok(Signer),
"parity" => Ok(Parity),
"parity_accounts" => Ok(ParityAccounts),
"parity_set" => Ok(ParitySet),
"traces" => Ok(Traces),
"rpc" => Ok(Rpc),
api => Err(format!("Unknown api: {}", api))
}
}
}
#[derive(Debug, Clone)]
pub enum ApiSet {
SafeContext,
UnsafeContext,
IpcContext,
List(HashSet<Api>),
}
impl Default for ApiSet {
fn default() -> Self {
ApiSet::UnsafeContext
}
}
impl PartialEq for ApiSet {
fn eq(&self, other: &Self) -> bool {
self.list_apis() == other.list_apis()
}
}
impl FromStr for ApiSet {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
s.split(',')
.map(Api::from_str)
.collect::<Result<_, _>>()
.map(ApiSet::List)
}
}
fn to_modules(apis: &[Api]) -> BTreeMap<String, String> {
let mut modules = BTreeMap::new();
for api in apis {
let (name, version) = match *api {
Api::Web3 => ("web3", "1.0"),
Api::Net => ("net", "1.0"),
Api::Eth => ("eth", "1.0"),
Api::Personal => ("personal", "1.0"),
Api::Signer => ("signer", "1.0"),
Api::Parity => ("parity", "1.0"),
Api::ParityAccounts => ("parity_accounts", "1.0"),
Api::ParitySet => ("parity_set", "1.0"),
Api::Traces => ("traces", "1.0"),
Api::Rpc => ("rpc", "1.0"),
};
modules.insert(name.into(), version.into());
}
modules
}
/// RPC dependencies can be used to initialize RPC endpoints from APIs.
pub trait Dependencies {
type Notifier: ActivityNotifier;
/// Create the activity notifier.
fn activity_notifier(&self) -> Self::Notifier;
/// Extend the given I/O handler with endpoints for each API.
fn extend_with_set(&self, handler: &mut MetaIoHandler<Metadata, Middleware<Self::Notifier>>, apis: &[Api]);
}
/// RPC dependencies for a full node.
pub struct FullDependencies {
pub signer_service: Arc<SignerService>,
pub client: Arc<Client>,
pub snapshot: Arc<SnapshotService>,
pub sync: Arc<SyncProvider>,
pub net: Arc<ManageNetwork>,
pub secret_store: Option<Arc<AccountProvider>>,
pub miner: Arc<Miner>,
pub external_miner: Arc<ExternalMiner>,
pub logger: Arc<RotatingLogger>,
pub settings: Arc<NetworkSettings>,
pub net_service: Arc<ManageNetwork>,
pub updater: Arc<Updater>,
pub geth_compatibility: bool,
pub dapps_interface: Option<String>,
pub dapps_port: Option<u16>,
pub fetch: FetchClient,
}
impl Dependencies for FullDependencies {
type Notifier = ClientNotifier;
fn activity_notifier(&self) -> ClientNotifier {
ClientNotifier {
client: self.client.clone(),
}
}
fn extend_with_set(&self, handler: &mut MetaIoHandler<Metadata, Middleware>, apis: &[Api]) {
use ethcore_rpc::v1::*;
macro_rules! add_signing_methods {
($namespace:ident, $handler:expr, $deps:expr) => {
{
let deps = &$deps;
let dispatcher = FullDispatcher::new(Arc::downgrade(&deps.client), Arc::downgrade(&deps.miner));
if deps.signer_service.is_enabled() {
$handler.extend_with($namespace::to_delegate(SigningQueueClient::new(&deps.signer_service, dispatcher, &deps.secret_store)))
} else {
$handler.extend_with($namespace::to_delegate(SigningUnsafeClient::new(&deps.secret_store, dispatcher)))
}
}
}
}
let dispatcher = FullDispatcher::new(Arc::downgrade(&self.client), Arc::downgrade(&self.miner));
for api in apis {
match *api {
Api::Web3 => {
handler.extend_with(Web3Client::new().to_delegate());
},
Api::Net => {
handler.extend_with(NetClient::new(&self.sync).to_delegate());
},
Api::Eth => {
let client = EthClient::new(
&self.client,
&self.snapshot,
&self.sync,
&self.secret_store,
&self.miner,
&self.external_miner,
EthClientOptions {
pending_nonce_from_queue: self.geth_compatibility,
allow_pending_receipt_query: !self.geth_compatibility,
send_block_number_in_get_work: !self.geth_compatibility,
}
);
handler.extend_with(client.to_delegate());
let filter_client = EthFilterClient::new(self.client.clone(), self.miner.clone());
handler.extend_with(filter_client.to_delegate());
add_signing_methods!(EthSigning, handler, self);
},
Api::Personal => {
handler.extend_with(PersonalClient::new(&self.secret_store, dispatcher.clone(), self.geth_compatibility).to_delegate());
},
Api::Signer => {
handler.extend_with(SignerClient::new(&self.secret_store, dispatcher.clone(), &self.signer_service).to_delegate());
},
Api::Parity => {
let signer = match self.signer_service.is_enabled() {
true => Some(self.signer_service.clone()),
false => None,
};
handler.extend_with(ParityClient::new(
&self.client,
&self.miner,
&self.sync,
&self.updater,
&self.net_service,
&self.secret_store,
self.logger.clone(),
self.settings.clone(),
signer,
self.dapps_interface.clone(),
self.dapps_port,
).to_delegate());
add_signing_methods!(EthSigning, handler, self);
add_signing_methods!(ParitySigning, handler, self);
},
Api::ParityAccounts => {
handler.extend_with(ParityAccountsClient::new(&self.secret_store).to_delegate());
},
Api::ParitySet => {
handler.extend_with(ParitySetClient::new(
&self.client,
&self.miner,
&self.updater,
&self.net_service,
self.fetch.clone(),
).to_delegate())
},
Api::Traces => {
handler.extend_with(TracesClient::new(&self.client, &self.miner).to_delegate())
},
Api::Rpc => {
let modules = to_modules(&apis);
handler.extend_with(RpcClient::new(modules).to_delegate());
}
}
}
}
}
/// Light client notifier. Doesn't do anything yet, but might in the future.
pub struct LightClientNotifier;
impl ActivityNotifier for LightClientNotifier {
fn active(&self) {}
}
/// RPC dependencies for a light client.
pub struct LightDependencies {
pub signer_service: Arc<SignerService>,
pub client: Arc<::light::client::Client>,
pub sync: Arc<LightSync>,
pub net: Arc<ManageNetwork>,
pub secret_store: Arc<AccountProvider>,
pub logger: Arc<RotatingLogger>,
pub settings: Arc<NetworkSettings>,
pub on_demand: Arc<::light::on_demand::OnDemand>,
pub cache: Arc<Mutex<LightDataCache>>,
pub transaction_queue: Arc<RwLock<LightTransactionQueue>>,
pub dapps_interface: Option<String>,
pub dapps_port: Option<u16>,
pub fetch: FetchClient,
pub geth_compatibility: bool,
}
impl Dependencies for LightDependencies {
type Notifier = LightClientNotifier;
fn activity_notifier(&self) -> Self::Notifier { LightClientNotifier }
fn extend_with_set(&self, handler: &mut MetaIoHandler<Metadata, Middleware<Self::Notifier>>, apis: &[Api]) {
use ethcore_rpc::v1::*;
let dispatcher = LightDispatcher::new(
self.sync.clone(),
self.client.clone(),
self.on_demand.clone(),
self.cache.clone(),
self.transaction_queue.clone(),
);
macro_rules! add_signing_methods {
($namespace:ident, $handler:expr, $deps:expr) => {
{
let deps = &$deps;
let dispatcher = dispatcher.clone();
let secret_store = Some(deps.secret_store.clone());
if deps.signer_service.is_enabled() {
$handler.extend_with($namespace::to_delegate(
SigningQueueClient::new(&deps.signer_service, dispatcher, &secret_store)
))
} else {
$handler.extend_with(
$namespace::to_delegate(SigningUnsafeClient::new(&secret_store, dispatcher))
)
}
}
}
}
for api in apis {
match *api {
Api::Web3 => {
handler.extend_with(Web3Client::new().to_delegate());
},
Api::Net => {
handler.extend_with(light::NetClient::new(self.sync.clone()).to_delegate());
},
Api::Eth => {
let client = light::EthClient::new(
self.sync.clone(),
self.client.clone(),
self.on_demand.clone(),
self.transaction_queue.clone(),
self.secret_store.clone(),
self.cache.clone(),
);
handler.extend_with(Eth::to_delegate(client.clone()));
handler.extend_with(EthFilter::to_delegate(client));
add_signing_methods!(EthSigning, handler, self);
},
Api::Personal => {
let secret_store = Some(self.secret_store.clone());
handler.extend_with(PersonalClient::new(&secret_store, dispatcher.clone(), self.geth_compatibility).to_delegate());
},
Api::Signer => {
let secret_store = Some(self.secret_store.clone());
handler.extend_with(SignerClient::new(&secret_store, dispatcher.clone(), &self.signer_service).to_delegate());
},
Api::Parity => {
let signer = match self.signer_service.is_enabled() {
true => Some(self.signer_service.clone()),
false => None,
};
handler.extend_with(light::ParityClient::new(
Arc::new(dispatcher.clone()),
self.secret_store.clone(),
self.logger.clone(),
self.settings.clone(),
signer,
self.dapps_interface.clone(),
self.dapps_port,
).to_delegate());
add_signing_methods!(EthSigning, handler, self);
add_signing_methods!(ParitySigning, handler, self);
},
Api::ParityAccounts => {
let secret_store = Some(self.secret_store.clone());
handler.extend_with(ParityAccountsClient::new(&secret_store).to_delegate());
},
Api::ParitySet => {
handler.extend_with(light::ParitySetClient::new(
self.sync.clone(),
self.fetch.clone(),
).to_delegate())
},
Api::Traces => {
handler.extend_with(light::TracesClient.to_delegate())
},
Api::Rpc => {
let modules = to_modules(&apis);
handler.extend_with(RpcClient::new(modules).to_delegate());
}
}
}
}
}
impl ApiSet {
pub fn list_apis(&self) -> HashSet<Api> {
let mut safe_list = vec![Api::Web3, Api::Net, Api::Eth, Api::Parity, Api::Traces, Api::Rpc]
.into_iter().collect();
match *self {
ApiSet::List(ref apis) => apis.clone(),
ApiSet::UnsafeContext => safe_list,
ApiSet::IpcContext => {
safe_list.insert(Api::ParityAccounts);
safe_list
},
ApiSet::SafeContext => {
safe_list.insert(Api::ParityAccounts);
safe_list.insert(Api::ParitySet);
safe_list.insert(Api::Signer);
safe_list
},
}
}
}
pub fn setup_rpc<D: Dependencies>(stats: Arc<RpcStats>, deps: &D, apis: ApiSet) -> MetaIoHandler<Metadata, Middleware<D::Notifier>> {
let mut handler = MetaIoHandler::with_middleware(Middleware::new(stats, deps.activity_notifier()));
// it's turned into vector, cause ont of the cases requires &[]
let apis = apis.list_apis().into_iter().collect::<Vec<_>>();
deps.extend_with_set(&mut handler, &apis[..]);
handler
}
#[cfg(test)]
mod test {
use super::{Api, ApiSet};
#[test]
fn test_api_parsing() {
assert_eq!(Api::Web3, "web3".parse().unwrap());
assert_eq!(Api::Net, "net".parse().unwrap());
assert_eq!(Api::Eth, "eth".parse().unwrap());
assert_eq!(Api::Personal, "personal".parse().unwrap());
assert_eq!(Api::Signer, "signer".parse().unwrap());
assert_eq!(Api::Parity, "parity".parse().unwrap());
assert_eq!(Api::ParityAccounts, "parity_accounts".parse().unwrap());
assert_eq!(Api::ParitySet, "parity_set".parse().unwrap());
assert_eq!(Api::Traces, "traces".parse().unwrap());
assert_eq!(Api::Rpc, "rpc".parse().unwrap());
assert!("rp".parse::<Api>().is_err());
}
#[test]
fn test_api_set_default() {
assert_eq!(ApiSet::UnsafeContext, ApiSet::default());
}
#[test]
fn test_api_set_parsing() {
assert_eq!(ApiSet::List(vec![Api::Web3, Api::Eth].into_iter().collect()), "web3,eth".parse().unwrap());
}
#[test]
fn test_api_set_unsafe_context() {
let expected = vec![
// make sure this list contains only SAFE methods
Api::Web3, Api::Net, Api::Eth, Api::Parity, Api::Traces, Api::Rpc
].into_iter().collect();
assert_eq!(ApiSet::UnsafeContext.list_apis(), expected);
}
#[test]
fn test_api_set_ipc_context() {
let expected = vec![
// safe
Api::Web3, Api::Net, Api::Eth, Api::Parity, Api::Traces, Api::Rpc,
// semi-safe
Api::ParityAccounts
].into_iter().collect();
assert_eq!(ApiSet::IpcContext.list_apis(), expected);
}
#[test]
fn test_api_set_safe_context() {
let expected = vec![
// safe
Api::Web3, Api::Net, Api::Eth, Api::Parity, Api::Traces, Api::Rpc,
// semi-safe
Api::ParityAccounts,
// Unsafe
Api::ParitySet, Api::Signer,
].into_iter().collect();
assert_eq!(ApiSet::SafeContext.list_apis(), expected);
}
}