// 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 . use std::io; use std::sync::Arc; use std::path::PathBuf; use ansi_term::Colour; use io::{ForwardPanic, PanicHandler}; use util::path::restrict_permissions_owner; use rpc_apis; use ethcore_signer as signer; use helpers::replace_home; pub use ethcore_signer::Server as SignerServer; const CODES_FILENAME: &'static str = "authcodes"; #[derive(Debug, PartialEq)] pub struct Configuration { pub enabled: bool, pub port: u16, pub interface: String, pub signer_path: String, pub skip_origin_validation: bool, } impl Default for Configuration { fn default() -> Self { Configuration { enabled: true, port: 8180, interface: "127.0.0.1".into(), signer_path: replace_home("$HOME/.parity/signer"), skip_origin_validation: false, } } } pub struct Dependencies { pub panic_handler: Arc, pub apis: Arc, } pub fn start(conf: Configuration, deps: Dependencies) -> Result, String> { if !conf.enabled { Ok(None) } else { Ok(Some(try!(do_start(conf, deps)))) } } fn codes_path(path: String) -> PathBuf { let mut p = PathBuf::from(path); p.push(CODES_FILENAME); let _ = restrict_permissions_owner(&p); p } #[derive(Debug, PartialEq)] pub struct SignerCommand { pub path: String, } pub fn execute(cmd: SignerCommand) -> Result { generate_new_token(cmd.path) .map(|code| format!("This key code will authorise your System Signer UI: {}", Colour::White.bold().paint(code))) .map_err(|err| format!("Error generating token: {:?}", err)) } pub fn generate_new_token(path: String) -> io::Result { let path = codes_path(path); let mut codes = try!(signer::AuthCodes::from_file(&path)); let code = try!(codes.generate_new()); try!(codes.to_file(&path)); trace!("New key code created: {}", Colour::White.bold().paint(&code[..])); Ok(code) } fn do_start(conf: Configuration, deps: Dependencies) -> Result { let addr = try!(format!("{}:{}", conf.interface, conf.port) .parse() .map_err(|_| format!("Invalid port specified: {}", conf.port))); let start_result = { let server = signer::ServerBuilder::new( deps.apis.signer_service.queue(), codes_path(conf.signer_path), ); if conf.skip_origin_validation { warn!("{}", Colour::Red.bold().paint("*** INSECURE *** Running Trusted Signer with no origin validation.")); info!("If you do not intend this, exit now."); } let server = server.skip_origin_validation(conf.skip_origin_validation); let server = rpc_apis::setup_rpc(server, deps.apis, rpc_apis::ApiSet::SafeContext); server.start(addr) }; match start_result { Err(signer::ServerError::IoError(err)) => match err.kind() { io::ErrorKind::AddrInUse => Err(format!("Trusted UI address {} is already in use, make sure that another instance of an Ethereum client is not running or change the address using the --ui-port and --ui-interface options.", addr)), _ => Err(format!("Trusted Signer io error: {}", err)), }, Err(e) => Err(format!("Trusted Signer Error: {:?}", e)), Ok(server) => { deps.panic_handler.forward_from(&server); Ok(server) }, } }