369 lines
12 KiB
Rust
369 lines
12 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Ethcore client application.
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#![warn(missing_docs)]
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extern crate ansi_term;
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extern crate app_dirs;
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extern crate ctrlc;
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extern crate docopt;
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#[macro_use]
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extern crate clap;
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extern crate dir;
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extern crate env_logger;
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extern crate fdlimit;
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extern crate futures;
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extern crate futures_cpupool;
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extern crate isatty;
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extern crate jsonrpc_core;
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extern crate num_cpus;
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extern crate number_prefix;
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extern crate parking_lot;
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extern crate regex;
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extern crate rlp;
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extern crate rpassword;
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extern crate rustc_hex;
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extern crate semver;
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extern crate serde;
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extern crate serde_json;
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#[macro_use]
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extern crate serde_derive;
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extern crate time;
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extern crate toml;
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extern crate ethcore;
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extern crate ethcore_bytes as bytes;
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extern crate ethcore_io as io;
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extern crate ethcore_light as light;
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extern crate ethcore_logger;
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extern crate ethcore_migrations as migrations;
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extern crate ethcore_miner as miner;
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extern crate ethcore_network as network;
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extern crate ethcore_transaction as transaction;
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extern crate ethereum_types;
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extern crate migration as migr;
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extern crate kvdb;
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extern crate kvdb_rocksdb;
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extern crate ethkey;
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extern crate ethsync;
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extern crate node_health;
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extern crate panic_hook;
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extern crate parity_hash_fetch as hash_fetch;
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extern crate parity_ipfs_api;
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extern crate parity_local_store as local_store;
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extern crate parity_reactor;
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extern crate parity_rpc;
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extern crate parity_updater as updater;
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extern crate parity_version;
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extern crate parity_whisper;
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extern crate path;
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extern crate rpc_cli;
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extern crate node_filter;
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extern crate keccak_hash as hash;
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extern crate journaldb;
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#[macro_use]
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extern crate log as rlog;
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#[cfg(feature="stratum")]
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extern crate ethcore_stratum;
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#[cfg(feature="secretstore")]
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extern crate ethcore_secretstore;
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#[cfg(feature = "dapps")]
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extern crate parity_dapps;
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#[cfg(test)]
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#[macro_use]
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extern crate pretty_assertions;
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#[cfg(windows)] extern crate ws2_32;
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#[cfg(windows)] extern crate winapi;
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#[cfg(test)]
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extern crate tempdir;
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mod account;
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mod blockchain;
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mod cache;
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mod cli;
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mod configuration;
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mod dapps;
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mod ipfs;
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mod deprecated;
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mod helpers;
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mod informant;
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mod light_helpers;
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mod migration;
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mod modules;
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mod params;
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mod presale;
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mod rpc;
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mod rpc_apis;
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mod run;
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mod secretstore;
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mod signer;
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mod snapshot;
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mod upgrade;
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mod url;
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mod user_defaults;
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mod whisper;
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#[cfg(feature="stratum")]
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mod stratum;
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use std::{process, env};
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use std::collections::HashMap;
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use std::io::{self as stdio, BufReader, Read, Write};
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use std::fs::{remove_file, metadata, File, create_dir_all};
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use std::path::PathBuf;
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use hash::keccak_buffer;
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use cli::Args;
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use configuration::{Cmd, Execute, Configuration};
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use deprecated::find_deprecated;
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use ethcore_logger::setup_log;
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use dir::default_hypervisor_path;
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fn print_hash_of(maybe_file: Option<String>) -> Result<String, String> {
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if let Some(file) = maybe_file {
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let mut f = BufReader::new(File::open(&file).map_err(|_| "Unable to open file".to_owned())?);
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let hash = keccak_buffer(&mut f).map_err(|_| "Unable to read from file".to_owned())?;
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Ok(hash.hex())
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} else {
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Err("Streaming from standard input not yet supported. Specify a file.".to_owned())
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}
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}
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enum PostExecutionAction {
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Print(String),
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Restart(Option<String>),
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Quit,
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}
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fn execute(command: Execute, can_restart: bool) -> Result<PostExecutionAction, String> {
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let logger = setup_log(&command.logger).expect("Logger is initialized only once; qed");
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match command.cmd {
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Cmd::Run(run_cmd) => {
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let (restart, spec_name) = run::execute(run_cmd, can_restart, logger)?;
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Ok(if restart { PostExecutionAction::Restart(spec_name) } else { PostExecutionAction::Quit })
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},
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Cmd::Version => Ok(PostExecutionAction::Print(Args::print_version())),
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Cmd::Hash(maybe_file) => print_hash_of(maybe_file).map(|s| PostExecutionAction::Print(s)),
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Cmd::Account(account_cmd) => account::execute(account_cmd).map(|s| PostExecutionAction::Print(s)),
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Cmd::ImportPresaleWallet(presale_cmd) => presale::execute(presale_cmd).map(|s| PostExecutionAction::Print(s)),
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Cmd::Blockchain(blockchain_cmd) => blockchain::execute(blockchain_cmd).map(|_| PostExecutionAction::Quit),
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Cmd::SignerToken(ws_conf, ui_conf, logger_config) => signer::execute(ws_conf, ui_conf, logger_config).map(|s| PostExecutionAction::Print(s)),
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Cmd::SignerSign { id, pwfile, port, authfile } => rpc_cli::signer_sign(id, pwfile, port, authfile).map(|s| PostExecutionAction::Print(s)),
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Cmd::SignerList { port, authfile } => rpc_cli::signer_list(port, authfile).map(|s| PostExecutionAction::Print(s)),
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Cmd::SignerReject { id, port, authfile } => rpc_cli::signer_reject(id, port, authfile).map(|s| PostExecutionAction::Print(s)),
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Cmd::Snapshot(snapshot_cmd) => snapshot::execute(snapshot_cmd).map(|s| PostExecutionAction::Print(s)),
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}
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}
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fn start(can_restart: bool) -> Result<PostExecutionAction, String> {
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let args: Vec<String> = env::args().collect();
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let conf = Configuration::parse(&args, take_spec_name_override()).unwrap_or_else(|e| e.exit());
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let deprecated = find_deprecated(&conf.args);
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for d in deprecated {
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println!("{}", d);
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}
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let cmd = conf.into_command()?;
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execute(cmd, can_restart)
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}
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#[cfg(not(feature="stratum"))]
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fn stratum_main(_: &mut HashMap<String, fn()>) {}
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#[cfg(feature="stratum")]
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fn stratum_main(alt_mains: &mut HashMap<String, fn()>) {
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alt_mains.insert("stratum".to_owned(), stratum::main);
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}
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fn sync_main(_: &mut HashMap<String, fn()>) {}
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fn updates_path(name: &str) -> PathBuf {
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let mut dest = PathBuf::from(default_hypervisor_path());
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dest.push(name);
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dest
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}
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fn latest_exe_path() -> Option<PathBuf> {
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File::open(updates_path("latest")).ok()
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.and_then(|mut f| { let mut exe = String::new(); f.read_to_string(&mut exe).ok().map(|_| updates_path(&exe)) })
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}
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fn set_spec_name_override(spec_name: String) {
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if let Err(e) = create_dir_all(default_hypervisor_path())
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.and_then(|_| File::create(updates_path("spec_name_overide"))
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.and_then(|mut f| f.write_all(spec_name.as_bytes())))
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{
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warn!("Couldn't override chain spec: {} at {:?}", e, updates_path("spec_name_overide"));
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}
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}
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fn take_spec_name_override() -> Option<String> {
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let p = updates_path("spec_name_overide");
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let r = File::open(p.clone()).ok()
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.and_then(|mut f| { let mut spec_name = String::new(); f.read_to_string(&mut spec_name).ok().map(|_| spec_name) });
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let _ = remove_file(p);
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r
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}
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#[cfg(windows)]
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fn global_cleanup() {
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// We need to cleanup all sockets before spawning another Parity process. This makes shure everything is cleaned up.
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// The loop is required because of internal refernce counter for winsock dll. We don't know how many crates we use do
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// initialize it. There's at least 2 now.
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for _ in 0.. 10 {
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unsafe { ::ws2_32::WSACleanup(); }
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}
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}
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#[cfg(not(windows))]
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fn global_init() {}
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#[cfg(windows)]
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fn global_init() {
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// When restarting in the same process this reinits windows sockets.
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unsafe {
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const WS_VERSION: u16 = 0x202;
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let mut wsdata: ::winapi::winsock2::WSADATA = ::std::mem::zeroed();
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::ws2_32::WSAStartup(WS_VERSION, &mut wsdata);
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}
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}
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#[cfg(not(windows))]
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fn global_cleanup() {}
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// Starts ~/.parity-updates/parity and returns the code it exits with.
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fn run_parity() -> Option<i32> {
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global_init();
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use ::std::ffi::OsString;
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let prefix = vec![OsString::from("--can-restart"), OsString::from("--force-direct")];
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let res = latest_exe_path().and_then(|exe| process::Command::new(exe)
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.args(&(env::args_os().skip(1).chain(prefix.into_iter()).collect::<Vec<_>>()))
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.status()
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.map(|es| es.code().unwrap_or(128))
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.ok()
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);
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global_cleanup();
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res
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}
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const PLEASE_RESTART_EXIT_CODE: i32 = 69;
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// Run our version of parity.
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// Returns the exit error code.
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fn main_direct(can_restart: bool) -> i32 {
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global_init();
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let mut alt_mains = HashMap::new();
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sync_main(&mut alt_mains);
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stratum_main(&mut alt_mains);
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let res = if let Some(f) = std::env::args().nth(1).and_then(|arg| alt_mains.get(&arg.to_string())) {
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f();
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0
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} else {
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match start(can_restart) {
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Ok(result) => match result {
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PostExecutionAction::Print(s) => { println!("{}", s); 0 },
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PostExecutionAction::Restart(spec_name_override) => {
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if let Some(spec_name) = spec_name_override {
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set_spec_name_override(spec_name);
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}
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PLEASE_RESTART_EXIT_CODE
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},
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PostExecutionAction::Quit => 0,
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},
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Err(err) => {
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writeln!(&mut stdio::stderr(), "{}", err).expect("StdErr available; qed");
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1
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},
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}
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};
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global_cleanup();
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res
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}
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fn println_trace_main(s: String) {
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if env::var("RUST_LOG").ok().and_then(|s| s.find("main=trace")).is_some() {
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println!("{}", s);
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}
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}
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#[macro_export]
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macro_rules! trace_main {
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($arg:expr) => (println_trace_main($arg.into()));
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($($arg:tt)*) => (println_trace_main(format!("{}", format_args!($($arg)*))));
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}
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fn main() {
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panic_hook::set();
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// assuming the user is not running with `--force-direct`, then:
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// if argv[0] == "parity" and this executable != ~/.parity-updates/parity, run that instead.
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let force_direct = std::env::args().any(|arg| arg == "--force-direct");
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let exe = std::env::current_exe().ok();
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let development = exe.as_ref().and_then(|p| p.parent().and_then(|p| p.parent()).and_then(|p| p.file_name()).map(|n| n == "target")).unwrap_or(false);
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let same_name = exe.as_ref().map(|p| p.file_stem().map_or(false, |s| s == "parity") && p.extension().map_or(true, |x| x == "exe")).unwrap_or(false);
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trace_main!("Starting up {} (force-direct: {}, development: {}, same-name: {})", std::env::current_exe().map(|x| format!("{}", x.display())).unwrap_or("<unknown>".to_owned()), force_direct, development, same_name);
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if !force_direct && !development && same_name {
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// looks like we're not running ~/.parity-updates/parity when the user is expecting otherwise.
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// Everything run inside a loop, so we'll be able to restart from the child into a new version seamlessly.
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loop {
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// If we fail to run the updated parity then fallback to local version.
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let latest_exe = latest_exe_path();
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let have_update = latest_exe.as_ref().map_or(false, |p| p.exists());
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let is_non_updated_current = exe.as_ref().map_or(false, |exe| latest_exe.as_ref().map_or(false, |lexe| exe.canonicalize().ok() != lexe.canonicalize().ok()));
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let update_is_newer = match (
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latest_exe.as_ref()
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.and_then(|p| metadata(p.as_path()).ok())
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.and_then(|m| m.modified().ok()),
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exe.as_ref()
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.and_then(|p| metadata(p.as_path()).ok())
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.and_then(|m| m.modified().ok())
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) {
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(Some(latest_exe_time), Some(this_exe_time)) if latest_exe_time > this_exe_time => true,
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_ => false,
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};
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trace_main!("Starting... (have-update: {}, non-updated-current: {}, update-is-newer: {})", have_update, is_non_updated_current, update_is_newer);
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let exit_code = if have_update && is_non_updated_current && update_is_newer {
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trace_main!("Attempting to run latest update ({})...", latest_exe.as_ref().expect("guarded by have_update; latest_exe must exist for have_update; qed").display());
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run_parity().unwrap_or_else(|| { trace_main!("Falling back to local..."); main_direct(true) })
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} else {
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trace_main!("No latest update. Attempting to direct...");
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main_direct(true)
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};
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trace_main!("Latest exited with {}", exit_code);
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if exit_code != PLEASE_RESTART_EXIT_CODE {
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trace_main!("Quitting...");
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process::exit(exit_code);
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}
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trace_main!("Rerunning...");
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}
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} else {
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trace_main!("Running direct");
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// Otherwise, we're presumably running the version we want. Just run and fall-through.
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let can_restart = std::env::args().any(|arg| arg == "--can-restart");
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process::exit(main_direct(can_restart));
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}
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}
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