openethereum/parity/main.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/>.
//! Ethcore client application.
#![warn(missing_docs)]
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#![cfg_attr(feature="dev", feature(plugin))]
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#![cfg_attr(feature="dev", plugin(clippy))]
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extern crate docopt;
extern crate rustc_serialize;
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extern crate ethcore_util as util;
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extern crate ethcore;
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extern crate ethsync;
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#[macro_use]
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extern crate log as rlog;
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extern crate env_logger;
extern crate ctrlc;
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extern crate fdlimit;
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extern crate daemonize;
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extern crate time;
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extern crate number_prefix;
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#[cfg(feature = "rpc")]
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extern crate ethcore_rpc as rpc;
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use std::net::{SocketAddr};
use std::env;
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use std::process::exit;
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use std::path::PathBuf;
use env_logger::LogBuilder;
use ctrlc::CtrlC;
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use util::*;
use util::panics::MayPanic;
use ethcore::spec::*;
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use ethcore::client::*;
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use ethcore::service::{ClientService, NetSyncMessage};
use ethcore::ethereum;
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use ethsync::{EthSync, SyncConfig};
use docopt::Docopt;
use daemonize::Daemonize;
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use number_prefix::{binary_prefix, Standalone, Prefixed};
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const USAGE: &'static str = r#"
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Parity. Ethereum Client.
By Wood/Paronyan/Kotewicz/Drwięga/Volf.
Copyright 2015, 2016 Ethcore (UK) Limited
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Usage:
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parity daemon <pid-file> [options] [ --no-bootstrap | <enode>... ]
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parity [options] [ --no-bootstrap | <enode>... ]
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Options:
--chain CHAIN Specify the blockchain type. CHAIN may be either a JSON chain specification file
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or frontier, mainnet, morden, or testnet [default: frontier].
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-d --db-path PATH Specify the database & configuration directory path [default: $HOME/.parity]
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--keys-path PATH Specify the path for JSON key files to be found [default: $HOME/.web3/keys]
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--no-bootstrap Don't bother trying to connect to any nodes initially.
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--listen-address URL Specify the IP/port on which to listen for peers [default: 0.0.0.0:30304].
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--public-address URL Specify the IP/port on which peers may connect.
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--address URL Equivalent to --listen-address URL --public-address URL.
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--peers NUM Try to maintain that many peers [default: 25].
--no-discovery Disable new peer discovery.
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--no-upnp Disable trying to figure out the correct public adderss over UPnP.
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--node-key KEY Specify node secret key, either as 64-character hex string or input to SHA3 operation.
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--cache-pref-size BYTES Specify the prefered size of the blockchain cache in bytes [default: 16384].
--cache-max-size BYTES Specify the maximum size of the blockchain cache in bytes [default: 262144].
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--queue-max-size BYTES Specify the maximum size of memory to use for block queue [default: 52428800].
-j --jsonrpc Enable the JSON-RPC API sever.
--jsonrpc-url URL Specify URL for JSON-RPC API server [default: 127.0.0.1:8545].
--jsonrpc-cors URL Specify CORS header for JSON-RPC API responses [default: null].
--author ADDRESS Specify the block author (aka "coinbase") address for sending block rewards
from sealed blocks [default: 0037a6b811ffeb6e072da21179d11b1406371c63].
--extra-data STRING Specify a custom extra-data for authored blocks, no more than 32 characters.
-l --logging LOGGING Specify the logging level.
-v --version Show information about version.
-h --help Show this screen.
"#;
#[derive(Debug, RustcDecodable)]
struct Args {
cmd_daemon: bool,
arg_pid_file: String,
arg_enode: Vec<String>,
flag_chain: String,
flag_db_path: String,
flag_keys_path: String,
flag_no_bootstrap: bool,
flag_listen_address: String,
flag_public_address: Option<String>,
flag_address: Option<String>,
flag_peers: u32,
flag_no_discovery: bool,
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flag_no_upnp: bool,
flag_node_key: Option<String>,
flag_cache_pref_size: usize,
flag_cache_max_size: usize,
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flag_queue_max_size: usize,
flag_jsonrpc: bool,
flag_jsonrpc_url: String,
flag_jsonrpc_cors: String,
flag_logging: Option<String>,
flag_version: bool,
flag_author: String,
flag_extra_data: Option<String>,
}
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fn setup_log(init: &Option<String>) {
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use rlog::*;
let mut builder = LogBuilder::new();
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builder.filter(None, LogLevelFilter::Info);
if env::var("RUST_LOG").is_ok() {
builder.parse(&env::var("RUST_LOG").unwrap());
}
if let Some(ref s) = *init {
builder.parse(s);
}
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let format = |record: &LogRecord| {
let timestamp = time::strftime("%Y-%m-%d %H:%M:%S %Z", &time::now()).unwrap();
if max_log_level() <= LogLevelFilter::Info {
format!("{}{}", timestamp, record.args())
} else {
format!("{}{}:{}: {}", timestamp, record.level(), record.target(), record.args())
}
};
builder.format(format);
builder.init().unwrap();
}
#[cfg(feature = "rpc")]
fn setup_rpc_server(client: Arc<Client>, sync: Arc<EthSync>, url: &str, cors_domain: &str) {
use rpc::v1::*;
let mut server = rpc::HttpServer::new(1);
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server.add_delegate(Web3Client::new().to_delegate());
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server.add_delegate(EthClient::new(&client, &sync).to_delegate());
server.add_delegate(EthFilterClient::new(&client).to_delegate());
server.add_delegate(NetClient::new(&sync).to_delegate());
server.start_async(url, cors_domain);
}
#[cfg(not(feature = "rpc"))]
fn setup_rpc_server(_client: Arc<Client>, _sync: Arc<EthSync>, _url: &str) {
}
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fn print_version() {
println!("\
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Parity
version {}
Copyright 2015, 2016 Ethcore (UK) Limited
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
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By Wood/Paronyan/Kotewicz/Drwięga/Volf.\
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", version());
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}
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fn die_with_message(msg: &str) -> ! {
println!("ERROR: {}", msg);
exit(1);
}
#[macro_export]
macro_rules! die {
($($arg:tt)*) => (die_with_message(&format!("{}", format_args!($($arg)*))));
}
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struct Configuration {
args: Args
}
impl Configuration {
fn parse() -> Self {
Configuration {
args: Docopt::new(USAGE).and_then(|d| d.decode()).unwrap_or_else(|e| e.exit()),
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}
}
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fn path(&self) -> String {
self.args.flag_db_path.replace("$HOME", env::home_dir().unwrap().to_str().unwrap())
}
fn author(&self) -> Address {
Address::from_str(&self.args.flag_author).unwrap_or_else(|_| die!("{}: Invalid address for --author. Must be 40 hex characters, without the 0x at the beginning.", self.args.flag_author))
}
fn extra_data(&self) -> Bytes {
match self.args.flag_extra_data {
Some(ref x) if x.len() <= 32 => x.as_bytes().to_owned(),
None => version_data(),
Some(ref x) => { die!("{}: Extra data must be at most 32 characters.", x); }
}
}
fn _keys_path(&self) -> String {
self.args.flag_keys_path.replace("$HOME", env::home_dir().unwrap().to_str().unwrap())
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}
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fn spec(&self) -> Spec {
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match self.args.flag_chain.as_ref() {
"frontier" | "mainnet" => ethereum::new_frontier(),
"morden" | "testnet" => ethereum::new_morden(),
"olympic" => ethereum::new_olympic(),
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f => Spec::from_json_utf8(contents(f).unwrap_or_else(|_| die!("{}: Couldn't read chain specification file. Sure it exists?", f)).as_ref()),
}
}
fn normalize_enode(e: &str) -> Option<String> {
if is_valid_node_url(e) {
Some(e.to_owned())
} else {
None
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}
}
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fn init_nodes(&self, spec: &Spec) -> Vec<String> {
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if self.args.flag_no_bootstrap { Vec::new() } else {
match self.args.arg_enode.len() {
0 => spec.nodes().clone(),
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_ => self.args.arg_enode.iter().map(|s| Self::normalize_enode(s).unwrap_or_else(||die!("{}: Invalid node address format given for a boot node.", s))).collect(),
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}
}
}
#[cfg_attr(feature="dev", allow(useless_format))]
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fn net_addresses(&self) -> (Option<SocketAddr>, Option<SocketAddr>) {
let mut listen_address = None;
let mut public_address = None;
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if let Some(ref a) = self.args.flag_address {
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public_address = Some(SocketAddr::from_str(a.as_ref()).unwrap_or_else(|_| die!("{}: Invalid listen/public address given with --address", a)));
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listen_address = public_address;
}
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if listen_address.is_none() {
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listen_address = Some(SocketAddr::from_str(self.args.flag_listen_address.as_ref()).unwrap_or_else(|_| die!("{}: Invalid listen/public address given with --listen-address", self.args.flag_listen_address)));
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}
if let Some(ref a) = self.args.flag_public_address {
if public_address.is_some() {
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die!("Conflicting flags provided: --address and --public-address");
}
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public_address = Some(SocketAddr::from_str(a.as_ref()).unwrap_or_else(|_| die!("{}: Invalid listen/public address given with --public-address", a)));
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}
(listen_address, public_address)
}
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fn net_settings(&self, spec: &Spec) -> NetworkConfiguration {
let mut ret = NetworkConfiguration::new();
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ret.nat_enabled = !self.args.flag_no_upnp;
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ret.boot_nodes = self.init_nodes(spec);
let (listen, public) = self.net_addresses();
ret.listen_address = listen;
ret.public_address = public;
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ret.use_secret = self.args.flag_node_key.as_ref().map(|s| Secret::from_str(&s).unwrap_or_else(|_| s.sha3()));
ret.discovery_enabled = !self.args.flag_no_discovery;
ret.ideal_peers = self.args.flag_peers;
let mut net_path = PathBuf::from(&self.path());
net_path.push("network");
ret.config_path = Some(net_path.to_str().unwrap().to_owned());
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ret
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}
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fn execute(&self) {
if self.args.flag_version {
print_version();
return;
}
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if self.args.cmd_daemon {
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Daemonize::new()
.pid_file(self.args.arg_pid_file.clone())
.chown_pid_file(true)
.start()
.unwrap_or_else(|e| die!("Couldn't daemonize; {}", e));
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}
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self.execute_client();
}
fn execute_client(&self) {
// Setup logging
setup_log(&self.args.flag_logging);
// Raise fdlimit
unsafe { ::fdlimit::raise_fd_limit(); }
let spec = self.spec();
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let net_settings = self.net_settings(&spec);
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let mut sync_config = SyncConfig::default();
sync_config.network_id = spec.network_id();
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// Build client
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let mut client_config = ClientConfig::default();
client_config.blockchain.pref_cache_size = self.args.flag_cache_pref_size;
client_config.blockchain.max_cache_size = self.args.flag_cache_max_size;
client_config.queue.max_mem_use = self.args.flag_queue_max_size;
let mut service = ClientService::start(client_config, spec, net_settings, &Path::new(&self.path())).unwrap();
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let client = service.client().clone();
client.set_author(self.author());
client.set_extra_data(self.extra_data());
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// Sync
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let sync = EthSync::register(service.network(), sync_config, client);
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// Setup rpc
if self.args.flag_jsonrpc {
setup_rpc_server(service.client(), sync.clone(), &self.args.flag_jsonrpc_url, &self.args.flag_jsonrpc_cors);
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SocketAddr::from_str(&self.args.flag_jsonrpc_url).unwrap_or_else(|_|die!("{}: Invalid JSONRPC listen address given with --jsonrpc-url. Should be of the form 'IP:port'.", self.args.flag_jsonrpc_url));
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}
// Register IO handler
let io_handler = Arc::new(ClientIoHandler {
client: service.client(),
info: Default::default(),
sync: sync
});
service.io().register_handler(io_handler).expect("Error registering IO handler");
// Handle exit
wait_for_exit(&service);
}
}
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fn wait_for_exit(client_service: &ClientService) {
let exit = Arc::new(Condvar::new());
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// Handle possible exits
let e = exit.clone();
CtrlC::set_handler(move || { e.notify_all(); });
let e = exit.clone();
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client_service.on_panic(move |_reason| { e.notify_all(); });
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// Wait for signal
let mutex = Mutex::new(());
let _ = exit.wait(mutex.lock().unwrap()).unwrap();
}
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fn main() {
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Configuration::parse().execute();
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}
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struct Informant {
chain_info: RwLock<Option<BlockChainInfo>>,
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cache_info: RwLock<Option<BlockChainCacheSize>>,
report: RwLock<Option<ClientReport>>,
}
impl Default for Informant {
fn default() -> Self {
Informant {
chain_info: RwLock::new(None),
cache_info: RwLock::new(None),
report: RwLock::new(None),
}
}
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}
impl Informant {
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fn format_bytes(b: usize) -> String {
match binary_prefix(b as f64) {
Standalone(bytes) => format!("{} bytes", bytes),
Prefixed(prefix, n) => format!("{:.0} {}B", n, prefix),
}
}
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pub fn tick(&self, client: &Client, sync: &EthSync) {
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// 5 seconds betwen calls. TODO: calculate this properly.
let dur = 5usize;
let chain_info = client.chain_info();
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let queue_info = client.queue_info();
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let cache_info = client.blockchain_cache_info();
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let report = client.report();
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let sync_info = sync.status();
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if let (_, _, &Some(ref last_report)) = (self.chain_info.read().unwrap().deref(), self.cache_info.read().unwrap().deref(), self.report.read().unwrap().deref()) {
println!("[ #{} {} ]---[ {} blk/s | {} tx/s | {} gas/s //··· {}/{} peers, #{}, {}+{} queued ···// mem: {} chain, {} queue, {} sync ]",
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chain_info.best_block_number,
chain_info.best_block_hash,
(report.blocks_imported - last_report.blocks_imported) / dur,
(report.transactions_applied - last_report.transactions_applied) / dur,
(report.gas_processed - last_report.gas_processed) / From::from(dur),
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sync_info.num_active_peers,
sync_info.num_peers,
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sync_info.last_imported_block_number.unwrap_or(chain_info.best_block_number),
queue_info.unverified_queue_size,
queue_info.verified_queue_size,
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Informant::format_bytes(cache_info.total()),
Informant::format_bytes(queue_info.mem_used),
Informant::format_bytes(sync_info.mem_used),
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);
}
*self.chain_info.write().unwrap().deref_mut() = Some(chain_info);
*self.cache_info.write().unwrap().deref_mut() = Some(cache_info);
*self.report.write().unwrap().deref_mut() = Some(report);
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}
}
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const INFO_TIMER: TimerToken = 0;
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struct ClientIoHandler {
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client: Arc<Client>,
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sync: Arc<EthSync>,
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info: Informant,
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}
impl IoHandler<NetSyncMessage> for ClientIoHandler {
fn initialize(&self, io: &IoContext<NetSyncMessage>) {
io.register_timer(INFO_TIMER, 5000).expect("Error registering timer");
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}
fn timeout(&self, _io: &IoContext<NetSyncMessage>, timer: TimerToken) {
if INFO_TIMER == timer {
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self.info.tick(&self.client, &self.sync);
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}
}
}
/// Parity needs at least 1 test to generate coverage reports correctly.
#[test]
fn if_works() {
}