openethereum/parity/rpc.rs

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// Copyright 2015, 2016 Ethcore (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::str::FromStr;
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use std::sync::Arc;
use std::net::SocketAddr;
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use util::panics::PanicHandler;
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use die::*;
use jsonipc;
use rpc_apis;
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use std::fmt;
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#[cfg(feature = "rpc")]
pub use ethcore_rpc::Server as RpcServer;
#[cfg(feature = "rpc")]
use ethcore_rpc::{RpcServerError, RpcServer as Server};
#[cfg(not(feature = "rpc"))]
pub struct RpcServer;
pub struct HttpConfiguration {
pub enabled: bool,
pub interface: String,
pub port: u16,
pub apis: String,
pub cors: Vec<String>,
}
pub struct IpcConfiguration {
pub enabled: bool,
pub socket_addr: String,
pub apis: String,
}
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impl fmt::Display for IpcConfiguration {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
if self.enabled {
write!(f, "endpoint address [{}], api list [{}]", self.socket_addr, self.apis)
}
else {
write!(f, "disabled")
}
}
}
pub struct Dependencies {
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pub panic_handler: Arc<PanicHandler>,
pub apis: Arc<rpc_apis::Dependencies>,
}
pub fn new_http(conf: HttpConfiguration, deps: &Dependencies) -> Option<RpcServer> {
if !conf.enabled {
return None;
}
let apis = conf.apis.split(',').collect();
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let url = format!("{}:{}", conf.interface, conf.port);
let addr = SocketAddr::from_str(&url).unwrap_or_else(|_| die!("{}: Invalid JSONRPC listen host/port given.", url));
Some(setup_http_rpc_server(deps, &addr, conf.cors, apis))
}
fn setup_rpc_server(apis: Vec<&str>, deps: &Dependencies) -> Server {
let apis = rpc_apis::from_str(apis);
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let server = Server::new();
rpc_apis::setup_rpc(server, deps.apis.clone(), rpc_apis::ApiSet::List(apis))
}
#[cfg(not(feature = "rpc"))]
pub fn setup_http_rpc_server(
_deps: &Dependencies,
_url: &SocketAddr,
_cors_domain: Vec<String>,
_apis: Vec<&str>,
) -> ! {
die!("Your Parity version has been compiled without JSON-RPC support.")
}
#[cfg(feature = "rpc")]
pub fn setup_http_rpc_server(
dependencies: &Dependencies,
url: &SocketAddr,
cors_domains: Vec<String>,
apis: Vec<&str>,
) -> RpcServer {
let server = setup_rpc_server(apis, dependencies);
let start_result = server.start_http(url, cors_domains);
let ph = dependencies.panic_handler.clone();
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match start_result {
Err(RpcServerError::IoError(err)) => die_with_io_error("RPC", err),
Err(e) => die!("RPC: {:?}", e),
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Ok(server) => {
server.set_panic_handler(move || {
ph.notify_all("Panic in RPC thread.".to_owned());
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});
server
},
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}
}
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#[cfg(not(feature = "rpc"))]
pub fn setup_ipc_rpc_server(_dependencies: &Dependencies, _addr: &str, _apis: Vec<&str>) -> ! {
die!("Your Parity version has been compiled without JSON-RPC support.")
}
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pub fn new_ipc(conf: IpcConfiguration, deps: &Dependencies) -> Option<jsonipc::Server> {
if !conf.enabled { return None; }
let apis = conf.apis.split(',').collect();
Some(setup_ipc_rpc_server(deps, &conf.socket_addr, apis))
}
#[cfg(feature = "rpc")]
pub fn setup_ipc_rpc_server(dependencies: &Dependencies, addr: &str, apis: Vec<&str>) -> jsonipc::Server {
let server = setup_rpc_server(apis, dependencies);
match server.start_ipc(addr) {
Err(jsonipc::Error::Io(io_error)) => die_with_io_error("RPC", io_error),
Err(any_error) => die!("RPC: {:?}", any_error),
Ok(server) => server
}
}