rpc api in progress

src/bin/client/ethrpc.rs

@@ -2,46 +2,101 @@ extern crate jsonrpc_core;
 extern crate jsonrpc_http_server;
 
 use std::sync::{Arc, RwLock};
+use rustc_serialize::hex::ToHex;
 use self::jsonrpc_core::{IoHandler, IoDelegate, Params, Value, Error, ErrorCode};
 use ethcore::client::*;
+use util::hash::*;
 
 macro_rules! rpcerr {
-	() => (Err(Error::new(ErrorCode::InternalError)))
+	() => (Err(Error::internal_error()))
 }
 
-/// This could be a part of `jsonrpc_core`. Unfortunately, 
-/// "only traits defined in the current crate can be implemented for a type parameter".
-pub trait IntoDelegate<T> where T: Send + Sync + 'static {
-	/// This function should be called to translate custom type into IoDelegate
-	fn into_delegate(self) -> IoDelegate<T>;
+/// Web3 rpc interface.
+pub trait Web3: Sized + Send + Sync + 'static {
+	/// Returns current client version.
+	fn client_version(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
+
+	/// 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("web3_clientVersion", Web3::client_version);
+		delegate
+	}
 }
 
-/// eth rpc interface
-pub trait Eth {
-	/// returns protocol version
+
+/// Eth rpc interface.
+pub trait Eth: Sized + Send + Sync + 'static {
+	/// Returns protocol version.
 	fn protocol_version(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
 
-	/// returns block author
+	/// Returns block author.
 	fn author(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
 
-	/// returns current gas_price
+	/// Returns current gas_price.
 	fn gas_price(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
 
-	/// returns highest block number
+	/// Returns highest block number.
 	fn block_number(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
+
+	/// Returns block with given index / hash.
+	fn block(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
+	
+	/// Returns true if client is actively mining new blocks.
+	fn is_mining(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
+
+	/// Returns the number of hashes per second that the node is mining with.
+	fn hashrate(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
+
+	/// Returns the number of transactions in a block.
+	fn block_transaction_count(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
+
+	/// 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("eth_protocolVersion", Eth::protocol_version);
+		delegate.add_method("eth_coinbase", Eth::author);
+		delegate.add_method("eth_gasPrice", Eth::gas_price);
+		delegate.add_method("eth_blockNumber", Eth::block_number);
+		delegate.add_method("eth_getBlockByNumber", Eth::block);
+		delegate.add_method("eth_mining", Eth::is_mining);
+		delegate.add_method("eth_hashrate", Eth::hashrate);
+		delegate.add_method("eth_getBlockTransactionCountByNumber", Eth::block_transaction_count);
+		delegate
+	}
 }
 
-impl<D> IntoDelegate<D> for D where D: Eth + Send + Sync + 'static {
-	fn into_delegate(self) -> IoDelegate<D> {
+/// Net rpc interface.
+pub trait Net: Sized + Send + Sync + 'static {
+	/// Returns protocol version.
+	fn version(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
+
+	/// Returns number of peers connected to node.
+	fn peer_count(&self, _: Params) -> Result<Value, Error> { rpcerr!() }
+
+	fn to_delegate(self) -> IoDelegate<Self> {
 		let mut delegate = IoDelegate::new(Arc::new(self));
-		delegate.add_method("eth_protocolVersion", D::protocol_version);
-		delegate.add_method("eth_coinbase", D::author);
-		delegate.add_method("eth_gasPrice", D::gas_price);
-		delegate.add_method("eth_blockNumber", D::block_number);
+		delegate.add_method("peer_count", Net::version);
+		delegate.add_method("net_version", Net::version);
 		delegate
 	}
 }
 
+pub struct Web3Client;
+
+impl Web3Client {
+	pub fn new() -> Self { Web3Client }
+}
+
+impl Web3 for Web3Client {
+	fn client_version(&self, params: Params) -> Result<Value, Error> {
+		match params {
+			Params::None => Ok(Value::String("parity/0.1.0/-/rust1.7-nightly".to_string())),
+			_ => Err(Error::invalid_params())
+		}
+	}
+}
+
 pub struct EthClient {
 	client: Arc<RwLock<Client>>,
 }
@@ -55,15 +110,35 @@ impl EthClient {
 }
 
 impl Eth for EthClient {
+	fn protocol_version(&self, params: Params) -> Result<Value, Error> {
+		match params {
+			Params::None => Ok(Value::U64(63)),
+			_ => Err(Error::invalid_params())
+		}
+	}
+
+	fn author(&self, params: Params) -> Result<Value, Error> {
+		match params {
+			Params::None => Ok(Value::String(Address::new().to_hex())),
+			_ => Err(Error::invalid_params())
+		}
+	}
+
 	fn block_number(&self, params: Params) -> Result<Value, Error> {
 		match params {
 			Params::None => Ok(Value::U64(self.client.read().unwrap().chain_info().best_block_number)),
-			_ => Err(Error::new(ErrorCode::InvalidParams)),
+			_ => Err(Error::invalid_params())
+		}
+	}
+
+	fn is_mining(&self, params: Params) -> Result<Value, Error> {
+		match params {
+			Params::None => Ok(Value::Bool(false)),
+			_ => Err(Error::invalid_params())
 		}
 	}
 }
 
-
 pub struct HttpServer {
 	handler: IoHandler,
 	threads: usize
@@ -77,8 +152,8 @@ impl HttpServer {
 		}
 	}
 
-	pub fn add_delegate<I, D>(&mut self, delegate: I) where D: Send + Sync + 'static, I: IntoDelegate<D> {
-		self.handler.add_delegate(delegate.into_delegate());
+	pub fn add_delegate<D>(&mut self, delegate: IoDelegate<D>) where D: Send + Sync + 'static {
+		self.handler.add_delegate(delegate);
 	}
 
 	pub fn start_async(self, addr: &str) {

src/bin/client/main.rs

@@ -32,8 +32,11 @@ fn setup_log() {
 
 #[cfg(feature = "rpc")]
 fn setup_rpc_server(client: Arc<RwLock<Client>>) {
-	let mut server = ethrpc::HttpServer::new(1);
-	server.add_delegate(ethrpc::EthClient::new(client));
+	use self::ethrpc::*;
+	
+	let mut server = HttpServer::new(1);
+	server.add_delegate(Web3Client::new().to_delegate());
+	server.add_delegate(EthClient::new(client).to_delegate());
 	server.start_async("127.0.0.1:3030");
 }