openethereum/parity/signer.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::io;
use std::path::PathBuf;
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use std::sync::Arc;
use util::panics::{PanicHandler, ForwardPanic};
use util::keys::directory::restrict_permissions_owner;
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use die::*;
use rpc_apis;
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const CODES_FILENAME: &'static str = "authcodes";
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#[cfg(feature = "ethcore-signer")]
use ethcore_signer as signer;
#[cfg(feature = "ethcore-signer")]
pub use ethcore_signer::Server as SignerServer;
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#[cfg(not(feature = "ethcore-signer"))]
pub struct SignerServer;
pub struct Configuration {
pub enabled: bool,
pub port: u16,
pub signer_path: String,
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}
pub struct Dependencies {
pub panic_handler: Arc<PanicHandler>,
pub apis: Arc<rpc_apis::Dependencies>,
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}
pub fn start(conf: Configuration, deps: Dependencies) -> Option<SignerServer> {
if !conf.enabled {
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None
} else {
Some(do_start(conf, deps))
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}
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}
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fn codes_path(path: String) -> PathBuf {
let mut p = PathBuf::from(path);
p.push(CODES_FILENAME);
let _ = restrict_permissions_owner(&p);
p
}
#[cfg(feature = "ethcore-signer")]
pub fn 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));
println!("New token has been generated. Copy the code below to your Signer UI:");
println!("{}", code);
Ok(())
}
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#[cfg(feature = "ethcore-signer")]
fn do_start(conf: Configuration, deps: Dependencies) -> SignerServer {
let addr = format!("127.0.0.1:{}", conf.port).parse().unwrap_or_else(|_| {
die!("Invalid port specified: {}", conf.port)
});
let start_result = {
let server = signer::ServerBuilder::new(
deps.apis.signer_queue.clone(),
codes_path(conf.signer_path),
);
let server = rpc_apis::setup_rpc(server, deps.apis, rpc_apis::ApiSet::SafeContext);
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server.start(addr)
};
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match start_result {
Err(signer::ServerError::IoError(err)) => die_with_io_error("Trusted Signer", err),
Err(e) => die!("Trusted Signer: {:?}", e),
Ok(server) => {
deps.panic_handler.forward_from(&server);
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server
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},
}
}
#[cfg(not(feature = "ethcore-signer"))]
fn do_start(_conf: Configuration) -> ! {
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die!("Your Parity version has been compiled without Trusted Signer support.")
}
#[cfg(not(feature = "ethcore-signer"))]
pub fn new_token(_path: String) -> ! {
die!("Your Parity version has been compiled without Trusted Signer support.")
}
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