openethereum/parity/secretstore.rs
2018-06-22 12:50:06 +02:00

248 lines
8.8 KiB
Rust

// Copyright 2015-2018 Parity Technologies (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::collections::BTreeMap;
use std::sync::Arc;
use dir::default_data_path;
use dir::helpers::replace_home;
use ethcore::account_provider::AccountProvider;
use ethcore::client::Client;
use ethcore::miner::Miner;
use ethkey::{Secret, Public};
use sync::SyncProvider;
use ethereum_types::Address;
/// This node secret key.
#[derive(Debug, PartialEq, Clone)]
pub enum NodeSecretKey {
/// Stored as plain text in configuration file.
Plain(Secret),
/// Stored as account in key store.
KeyStore(Address),
}
/// Secret store service contract address.
#[derive(Debug, PartialEq, Clone)]
pub enum ContractAddress {
/// Contract address is read from registry.
Registry,
/// Contract address is specified.
Address(Address),
}
#[derive(Debug, PartialEq, Clone)]
/// Secret store configuration
pub struct Configuration {
/// Is secret store functionality enabled?
pub enabled: bool,
/// Is HTTP API enabled?
pub http_enabled: bool,
/// Is auto migrate enabled.
pub auto_migrate_enabled: bool,
/// ACL check contract address.
pub acl_check_contract_address: Option<ContractAddress>,
/// Service contract address.
pub service_contract_address: Option<ContractAddress>,
/// Server key generation service contract address.
pub service_contract_srv_gen_address: Option<ContractAddress>,
/// Server key retrieval service contract address.
pub service_contract_srv_retr_address: Option<ContractAddress>,
/// Document key store service contract address.
pub service_contract_doc_store_address: Option<ContractAddress>,
/// Document key shadow retrieval service contract address.
pub service_contract_doc_sretr_address: Option<ContractAddress>,
/// This node secret.
pub self_secret: Option<NodeSecretKey>,
/// Other nodes IDs + addresses.
pub nodes: BTreeMap<Public, (String, u16)>,
/// Key Server Set contract address. If None, 'nodes' map is used.
pub key_server_set_contract_address: Option<ContractAddress>,
/// Interface to listen to
pub interface: String,
/// Port to listen to
pub port: u16,
/// Interface to listen to
pub http_interface: String,
/// Port to listen to
pub http_port: u16,
/// Data directory path for secret store
pub data_path: String,
/// Administrator public key.
pub admin_public: Option<Public>,
}
/// Secret store dependencies
pub struct Dependencies<'a> {
/// Blockchain client.
pub client: Arc<Client>,
/// Sync provider.
pub sync: Arc<SyncProvider>,
/// Miner service.
pub miner: Arc<Miner>,
/// Account provider.
pub account_provider: Arc<AccountProvider>,
/// Passed accounts passwords.
pub accounts_passwords: &'a [String],
}
#[cfg(not(feature = "secretstore"))]
mod server {
use super::{Configuration, Dependencies};
/// Noop key server implementation
pub struct KeyServer;
impl KeyServer {
/// Create new noop key server
pub fn new(_conf: Configuration, _deps: Dependencies) -> Result<Self, String> {
Ok(KeyServer)
}
}
}
#[cfg(feature = "secretstore")]
mod server {
use std::sync::Arc;
use ethcore_secretstore;
use ethkey::KeyPair;
use ansi_term::Colour::{Red, White};
use db;
use super::{Configuration, Dependencies, NodeSecretKey, ContractAddress};
fn into_service_contract_address(address: ContractAddress) -> ethcore_secretstore::ContractAddress {
match address {
ContractAddress::Registry => ethcore_secretstore::ContractAddress::Registry,
ContractAddress::Address(address) => ethcore_secretstore::ContractAddress::Address(address),
}
}
/// Key server
pub struct KeyServer {
_key_server: Box<ethcore_secretstore::KeyServer>,
}
impl KeyServer {
/// Create new key server
pub fn new(mut conf: Configuration, deps: Dependencies) -> Result<Self, String> {
let self_secret: Arc<ethcore_secretstore::NodeKeyPair> = match conf.self_secret.take() {
Some(NodeSecretKey::Plain(secret)) => Arc::new(ethcore_secretstore::PlainNodeKeyPair::new(
KeyPair::from_secret(secret).map_err(|e| format!("invalid secret: {}", e))?)),
Some(NodeSecretKey::KeyStore(account)) => {
// Check if account exists
if !deps.account_provider.has_account(account.clone()) {
return Err(format!("Account {} passed as secret store node key is not found", account));
}
// Check if any passwords have been read from the password file(s)
if deps.accounts_passwords.is_empty() {
return Err(format!("No password found for the secret store node account {}", account));
}
// Attempt to sign in the engine signer.
let password = deps.accounts_passwords.iter()
.find(|p| deps.account_provider.sign(account.clone(), Some((*p).clone()), Default::default()).is_ok())
.ok_or_else(|| format!("No valid password for the secret store node account {}", account))?;
Arc::new(ethcore_secretstore::KeyStoreNodeKeyPair::new(deps.account_provider, account, password.clone())
.map_err(|e| format!("{}", e))?)
},
None => return Err("self secret is required when using secretstore".into()),
};
info!("Starting SecretStore node: {}", White.bold().paint(format!("{:?}", self_secret.public())));
if conf.acl_check_contract_address.is_none() {
warn!("Running SecretStore with disabled ACL check: {}", Red.bold().paint("everyone has access to stored keys"));
}
let key_server_name = format!("{}:{}", conf.interface, conf.port);
let mut cconf = ethcore_secretstore::ServiceConfiguration {
listener_address: if conf.http_enabled { Some(ethcore_secretstore::NodeAddress {
address: conf.http_interface.clone(),
port: conf.http_port,
}) } else { None },
service_contract_address: conf.service_contract_address.map(into_service_contract_address),
service_contract_srv_gen_address: conf.service_contract_srv_gen_address.map(into_service_contract_address),
service_contract_srv_retr_address: conf.service_contract_srv_retr_address.map(into_service_contract_address),
service_contract_doc_store_address: conf.service_contract_doc_store_address.map(into_service_contract_address),
service_contract_doc_sretr_address: conf.service_contract_doc_sretr_address.map(into_service_contract_address),
acl_check_contract_address: conf.acl_check_contract_address.map(into_service_contract_address),
cluster_config: ethcore_secretstore::ClusterConfiguration {
threads: 4,
listener_address: ethcore_secretstore::NodeAddress {
address: conf.interface.clone(),
port: conf.port,
},
nodes: conf.nodes.into_iter().map(|(p, (ip, port))| (p, ethcore_secretstore::NodeAddress {
address: ip,
port: port,
})).collect(),
key_server_set_contract_address: conf.key_server_set_contract_address.map(into_service_contract_address),
allow_connecting_to_higher_nodes: true,
admin_public: conf.admin_public,
auto_migrate_enabled: conf.auto_migrate_enabled,
},
};
cconf.cluster_config.nodes.insert(self_secret.public().clone(), cconf.cluster_config.listener_address.clone());
let db = db::open_secretstore_db(&conf.data_path)?;
let key_server = ethcore_secretstore::start(deps.client, deps.sync, deps.miner, self_secret, cconf, db)
.map_err(|e| format!("Error starting KeyServer {}: {}", key_server_name, e))?;
Ok(KeyServer {
_key_server: key_server,
})
}
}
}
pub use self::server::KeyServer;
impl Default for Configuration {
fn default() -> Self {
let data_dir = default_data_path();
Configuration {
enabled: true,
http_enabled: true,
auto_migrate_enabled: true,
acl_check_contract_address: Some(ContractAddress::Registry),
service_contract_address: None,
service_contract_srv_gen_address: None,
service_contract_srv_retr_address: None,
service_contract_doc_store_address: None,
service_contract_doc_sretr_address: None,
self_secret: None,
admin_public: None,
nodes: BTreeMap::new(),
key_server_set_contract_address: Some(ContractAddress::Registry),
interface: "127.0.0.1".to_owned(),
port: 8083,
http_interface: "127.0.0.1".to_owned(),
http_port: 8082,
data_path: replace_home(&data_dir, "$BASE/secretstore"),
}
}
}
/// Start secret store-related functionality
pub fn start(conf: Configuration, deps: Dependencies) -> Result<Option<KeyServer>, String> {
if !conf.enabled {
return Ok(None);
}
KeyServer::new(conf, deps)
.map(|s| Some(s))
}