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Sign with token support

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This commit is contained in:
Tomasz Drwięga 2016-11-30 15:08:38 +01:00
parent ad440a12bd
commit 6397556cbb
5 changed files with 152 additions and 117 deletions
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72
ethcore/src/account_provider.rs
View File

@ -20,8 +20,8 @@ use std::{fs, fmt};
use std::collections::HashMap;
use std::path::PathBuf;
use std::time::{Instant, Duration};
use util::{Mutex, RwLock};
use ethstore::{SecretStore, Error as SSError, SafeAccount, EthStore};
use util::{Mutex, RwLock, Itertools};
use ethstore::{SimpleSecretStore, SecretStore, Error as SSError, SafeAccount, EthStore, EthMultiStore, random_string};
use ethstore::dir::{KeyDirectory};
use ethstore::ethkey::{Address, Message, Public, Secret, Random, Generator};
use ethjson::misc::AccountMeta;
@ -72,21 +72,35 @@ impl From<SSError> for Error {
#[derive(Default)]
struct NullDir {
accounts: RwLock<HashMap<Address, SafeAccount>>,
accounts: RwLock<HashMap<Address, Vec<SafeAccount>>>,
}
impl KeyDirectory for NullDir {
fn load(&self) -> Result<Vec<SafeAccount>, SSError> {
Ok(self.accounts.read().values().cloned().collect())
Ok(self.accounts.read().values().cloned().flatten().collect())
}
fn insert(&self, account: SafeAccount) -> Result<SafeAccount, SSError> {
self.accounts.write().insert(account.address.clone(), account.clone());
self.accounts.write()
.entry(account.address.clone())
.or_insert_with(Vec::new)
.push(account.clone());
Ok(account)
}
fn remove(&self, address: &Address) -> Result<(), SSError> {
self.accounts.write().remove(address);
fn remove(&self, account: &SafeAccount) -> Result<(), SSError> {
let mut accounts = self.accounts.write();
let is_empty = if let Some(mut accounts) = accounts.get_mut(&account.address) {
if let Some(position) = accounts.iter().position(|acc| acc == account) {
accounts.remove(position);
}
accounts.is_empty()
} else {
false
};
if is_empty {
accounts.remove(&account.address);
}
Ok(())
}
}
@ -163,10 +177,12 @@ impl AddressBook {
}
}
fn transient_sstore() -> Box<SecretStore> {
Box::new(EthStore::open(Box::new(NullDir::default())).expect("NullDir load always succeeds; qed")))
fn transient_sstore() -> EthMultiStore {
EthMultiStore::open(Box::new(NullDir::default())).expect("NullDir load always succeeds; qed")
}
type AccountToken = String;
/// Account management.
/// Responsible for unlocking accounts.
pub struct AccountProvider {
@ -175,7 +191,7 @@ pub struct AccountProvider {
/// Accounts on disk
sstore: Box<SecretStore>,
/// Accounts unlocked with rolling tokens
transient_sstore: Box<SecretStore>,
transient_sstore: EthMultiStore,
}
impl AccountProvider {
@ -194,7 +210,7 @@ impl AccountProvider {
AccountProvider {
unlocked: Mutex::new(HashMap::new()),
address_book: Mutex::new(AddressBook::transient()),
sstore: transient_sstore(),
sstore: Box::new(EthStore::open(Box::new(NullDir::default())).expect("NullDir load always succeeds; qed")),
transient_sstore: transient_sstore(),
}
}
@ -285,11 +301,8 @@ impl AccountProvider {
/// Returns `true` if the password for `account` is `password`. `false` if not.
pub fn test_password(&self, account: &Address, password: &str) -> Result<bool, Error> {
match self.sstore.sign(account, password, &Default::default()) {
Ok(_) => Ok(true),
Err(SSError::InvalidPassword) => Ok(false),
Err(e) => Err(Error::SStore(e)),
}
self.sstore.test_password(account, password)
.map_err(Into::into)
}
/// Permanently removes an account.
@ -368,6 +381,26 @@ impl AccountProvider {
Ok(try!(self.sstore.sign(&account, &password, &message)))
}
/// Signs given message with supplied token. Returns a token to use in next signing within this session.
pub fn sign_with_token(&self, account: Address, token: AccountToken, message: Message) -> Result<(Signature, AccountToken), Error> {
let is_std_password = try!(self.sstore.test_password(&account, &token));
let new_token = random_string(16);
let signature = if is_std_password {
// Insert to transient store
try!(self.sstore.copy_account(&self.transient_sstore, &account, &token, &new_token));
// sign
try!(self.sstore.sign(&account, &token, &message))
} else {
// check transient store
try!(self.transient_sstore.change_password(&account, &token, &new_token));
// and sign
try!(self.transient_sstore.sign(&account, &new_token, &message))
};
Ok((signature, new_token))
}
/// Decrypts a message. If password is not provided the account must be unlocked.
pub fn decrypt(&self, account: Address, password: Option<String>, shared_mac: &[u8], message: &[u8]) -> Result<Vec<u8>, Error> {
let password = try!(password.map(Ok).unwrap_or_else(|| self.password(&account)));
@ -450,6 +483,11 @@ mod tests {
assert!(ap.insert_account(kp.secret().clone(), "test").is_ok());
// when
let (_signature, token) = ap.sign_with_token(kp.address(), "test", Default::default()).unwrap();
let (_signature, token) = ap.sign_with_token(kp.address(), "test".into(), Default::default()).unwrap();
// then
ap.sign_with_token(kp.address(), token.clone(), Default::default())
.expect("First usage of token should be correct.");
assert!(ap.sign_with_token(kp.address(), token, Default::default()).is_err(), "Second usage of the same token should fail.");
}
}

168
ethstore/src/ethstore.rs
View File

@ -22,7 +22,7 @@ use random::Random;
use ethkey::{Signature, Address, Message, Secret, Public};
use dir::KeyDirectory;
use account::SafeAccount;
use {Error, SecretStore};
use {Error, SimpleSecretStore, SecretStore};
use json;
use json::UUID;
use parking_lot::RwLock;
@ -30,9 +30,7 @@ use presale::PresaleWallet;
use import;
pub struct EthStore {
dir: Box<KeyDirectory>,
iterations: u32,
cache: RwLock<BTreeMap<Address, SafeAccount>>,
store: EthMultiStore,
}
impl EthStore {
@ -41,57 +39,46 @@ impl EthStore {
}
pub fn open_with_iterations(directory: Box<KeyDirectory>, iterations: u32) -> Result<Self, Error> {
let accounts = try!(directory.load());
let cache = accounts.into_iter().map(|account| (account.address.clone(), account)).collect();
let store = EthStore {
dir: directory,
iterations: iterations,
cache: RwLock::new(cache),
};
Ok(store)
}
fn save(&self, account: SafeAccount) -> Result<(), Error> {
// save to file
let account = try!(self.dir.insert(account));
// update cache
let mut cache = self.cache.write();
cache.insert(account.address.clone(), account);
Ok(())
}
fn reload_accounts(&self) -> Result<(), Error> {
let mut cache = self.cache.write();
let accounts = try!(self.dir.load());
let new_accounts: BTreeMap<_, _> = accounts.into_iter().map(|account| (account.address.clone(), account)).collect();
mem::replace(&mut *cache, new_accounts);
Ok(())
Ok(EthStore {
store: try!(EthMultiStore::open_with_iterations(directory, iterations)),
})
}
fn get(&self, address: &Address) -> Result<SafeAccount, Error> {
{
let cache = self.cache.read();
if let Some(account) = cache.get(address) {
return Ok(account.clone())
}
}
try!(self.reload_accounts());
let cache = self.cache.read();
cache.get(address).cloned().ok_or(Error::InvalidAccount)
let mut accounts = try!(self.store.get(address)).into_iter();
accounts.next().ok_or(Error::InvalidAccount)
}
}
impl SimpleSecretStore for EthStore {
fn insert_account(&self, secret: Secret, password: &str) -> Result<Address, Error> {
self.store.insert_account(secret, password)
}
fn accounts(&self) -> Result<Vec<Address>, Error> {
self.store.accounts()
}
fn change_password(&self, address: &Address, old_password: &str, new_password: &str) -> Result<(), Error> {
self.store.change_password(address, old_password, new_password)
}
fn remove_account(&self, address: &Address, password: &str) -> Result<(), Error> {
self.store.remove_account(address, password)
}
fn sign(&self, address: &Address, password: &str, message: &Message) -> Result<Signature, Error> {
let account = try!(self.get(address));
account.sign(password, message)
}
fn decrypt(&self, account: &Address, password: &str, shared_mac: &[u8], message: &[u8]) -> Result<Vec<u8>, Error> {
let account = try!(self.get(account));
account.decrypt(password, shared_mac, message)
}
}
impl SecretStore for EthStore {
fn insert_account(&self, secret: Secret, password: &str) -> Result<Address, Error> {
let keypair = try!(KeyPair::from_secret(secret).map_err(|_| Error::CreationFailed));
let id: [u8; 16] = Random::random();
let account = SafeAccount::create(&keypair, id, password, self.iterations, "".to_owned(), "{}".to_owned());
let address = account.address.clone();
try!(self.save(account));
Ok(address)
}
fn import_presale(&self, json: &[u8], password: &str) -> Result<Address, Error> {
let json_wallet = try!(json::PresaleWallet::load(json).map_err(|_| Error::InvalidKeyFile("Invalid JSON format".to_owned())));
let wallet = PresaleWallet::from(json_wallet);
@ -105,46 +92,20 @@ impl SecretStore for EthStore {
let secret = try!(safe_account.crypto.secret(password).map_err(|_| Error::InvalidPassword));
safe_account.address = try!(KeyPair::from_secret(secret)).address();
let address = safe_account.address.clone();
try!(self.save(safe_account));
try!(self.store.save(safe_account));
Ok(address)
}
fn accounts(&self) -> Result<Vec<Address>, Error> {
try!(self.reload_accounts());
Ok(self.cache.read().keys().cloned().collect())
}
fn change_password(&self, address: &Address, old_password: &str, new_password: &str) -> Result<(), Error> {
// change password
fn test_password(&self, address: &Address, password: &str) -> Result<bool, Error> {
let account = try!(self.get(address));
let account = try!(account.change_password(old_password, new_password, self.iterations));
// save to file
self.save(account)
Ok(account.check_password(password))
}
fn remove_account(&self, address: &Address, password: &str) -> Result<(), Error> {
fn copy_account(&self, new_store: &SimpleSecretStore, address: &Address, password: &str, new_password: &str) -> Result<(), Error> {
let account = try!(self.get(address));
let can_remove = account.check_password(password);
if can_remove {
try!(self.dir.remove(&account));
let mut cache = self.cache.write();
cache.remove(address);
Ok(())
} else {
Err(Error::InvalidPassword)
}
}
fn sign(&self, address: &Address, password: &str, message: &Message) -> Result<Signature, Error> {
let account = try!(self.get(address));
account.sign(password, message)
}
fn decrypt(&self, account: &Address, password: &str, shared_mac: &[u8], message: &[u8]) -> Result<Vec<u8>, Error> {
let account = try!(self.get(account));
account.decrypt(password, shared_mac, message)
let secret = try!(account.crypto.secret(password));
try!(new_store.insert_account(secret, new_password));
Ok(())
}
fn public(&self, account: &Address, password: &str) -> Result<Public, Error> {
@ -172,7 +133,7 @@ impl SecretStore for EthStore {
account.name = name;
// save to file
self.save(account)
self.store.save(account)
}
fn set_meta(&self, address: &Address, meta: String) -> Result<(), Error> {
@ -180,11 +141,11 @@ impl SecretStore for EthStore {
account.meta = meta;
// save to file
self.save(account)
self.store.save(account)
}
fn local_path(&self) -> String {
self.dir.path().map(|p| p.to_string_lossy().into_owned()).unwrap_or_else(|| String::new())
self.store.dir.path().map(|p| p.to_string_lossy().into_owned()).unwrap_or_else(|| String::new())
}
fn list_geth_accounts(&self, testnet: bool) -> Vec<Address> {
@ -192,7 +153,7 @@ impl SecretStore for EthStore {
}
fn import_geth_accounts(&self, desired: Vec<Address>, testnet: bool) -> Result<Vec<Address>, Error> {
import::import_geth_accounts(&*self.dir, desired.into_iter().collect(), testnet)
import::import_geth_accounts(&*self.store.dir, desired.into_iter().collect(), testnet)
}
}
@ -210,7 +171,7 @@ impl EthMultiStore {
}
pub fn open_with_iterations(directory: Box<KeyDirectory>, iterations: u32) -> Result<Self, Error> {
let mut store = EthMultiStore {
let store = EthMultiStore {
dir: directory,
iterations: iterations,
cache: Default::default(),
@ -252,7 +213,7 @@ impl EthMultiStore {
}
}
pub fn insert_account(&self, account: SafeAccount) -> Result<(), Error> {
fn save(&self, account: SafeAccount) -> Result<(), Error> {
//save to file
let account = try!(self.dir.insert(account));
@ -263,7 +224,24 @@ impl EthMultiStore {
Ok(())
}
pub fn remove_account(&self, address: &Address, password: &str) -> Result<(), Error> {
}
impl SimpleSecretStore for EthMultiStore {
fn insert_account(&self, secret: Secret, password: &str) -> Result<Address, Error> {
let keypair = try!(KeyPair::from_secret(secret).map_err(|_| Error::CreationFailed));
let id: [u8; 16] = Random::random();
let account = SafeAccount::create(&keypair, id, password, self.iterations, "".to_owned(), "{}".to_owned());
let address = account.address.clone();
try!(self.save(account));
Ok(address)
}
fn accounts(&self) -> Result<Vec<Address>, Error> {
try!(self.reload_accounts());
Ok(self.cache.read().keys().cloned().collect())
}
fn remove_account(&self, address: &Address, password: &str) -> Result<(), Error> {
let accounts = try!(self.get(address));
for account in accounts {
@ -294,19 +272,19 @@ impl EthMultiStore {
Err(Error::InvalidPassword)
}
pub fn change_password(&self, address: &Address, old_password: &str, new_password: &str) -> Result<(), Error> {
fn change_password(&self, address: &Address, old_password: &str, new_password: &str) -> Result<(), Error> {
let accounts = try!(self.get(address));
for account in accounts {
// First remove
try!(self.remove_account(&address, old_password));
// Then insert back with new password
let new_account = try!(account.change_password(old_password, new_password, self.iterations));
try!(self.insert_account(new_account));
try!(self.save(new_account));
}
Ok(())
}
pub fn sign(&self, address: &Address, password: &str, message: &Message) -> Result<Signature, Error> {
fn sign(&self, address: &Address, password: &str, message: &Message) -> Result<Signature, Error> {
let accounts = try!(self.get(address));
for account in accounts {
if account.check_password(password) {
@ -317,7 +295,7 @@ impl EthMultiStore {
Err(Error::InvalidPassword)
}
pub fn decrypt(&self, account: &Address, password: &str, shared_mac: &[u8], message: &[u8]) -> Result<Vec<u8>, Error> {
fn decrypt(&self, account: &Address, password: &str, shared_mac: &[u8], message: &[u8]) -> Result<Vec<u8>, Error> {
let accounts = try!(self.get(account));
for account in accounts {
if account.check_password(password) {
@ -328,3 +306,9 @@ impl EthMultiStore {
}
}
#[cfg(test)]
mod tests {
fn should_have_some_tests() {
assert_eq!(true, false)
}
}

6
ethstore/src/lib.rs
View File

@ -50,8 +50,8 @@ mod secret_store;
pub use self::account::SafeAccount;
pub use self::error::Error;
pub use self::ethstore::EthStore;
pub use self::ethstore::{EthStore, EthMultiStore};
pub use self::import::{import_accounts, read_geth_accounts};
pub use self::presale::PresaleWallet;
pub use self::secret_store::SecretStore;
pub use self::random::random_phrase;
pub use self::secret_store::{SimpleSecretStore, SecretStore};
pub use self::random::{random_phrase, random_string};

8
ethstore/src/random.rs
View File

@ -51,10 +51,16 @@ pub fn random_phrase(words: usize) -> String {
.map(|s| s.to_owned())
.collect();
}
let mut rng = OsRng::new().unwrap();
let mut rng = OsRng::new().expect("Not able to operate without random source.");
(0..words).map(|_| rng.choose(&WORDS).unwrap()).join(" ")
}
/// Generate a random string of given length.
pub fn random_string(length: usize) -> String {
let mut rng = OsRng::new().expect("Not able to operate without random source.");
rng.gen_ascii_chars().take(length).collect()
}
#[cfg(test)]
mod tests {
use super::random_phrase;

15
ethstore/src/secret_store.rs
View File

@ -18,18 +18,25 @@ use ethkey::{Address, Message, Signature, Secret, Public};
use Error;
use json::UUID;
pub trait SecretStore: Send + Sync {
pub trait SimpleSecretStore: Send + Sync {
fn insert_account(&self, secret: Secret, password: &str) -> Result<Address, Error>;
fn import_presale(&self, json: &[u8], password: &str) -> Result<Address, Error>;
fn import_wallet(&self, json: &[u8], password: &str) -> Result<Address, Error>;
fn change_password(&self, account: &Address, old_password: &str, new_password: &str) -> Result<(), Error>;
fn remove_account(&self, account: &Address, password: &str) -> Result<(), Error>;
fn sign(&self, account: &Address, password: &str, message: &Message) -> Result<Signature, Error>;
fn decrypt(&self, account: &Address, password: &str, shared_mac: &[u8], message: &[u8]) -> Result<Vec<u8>, Error>;
fn public(&self, account: &Address, password: &str) -> Result<Public, Error>;
fn accounts(&self) -> Result<Vec<Address>, Error>;
}
pub trait SecretStore: SimpleSecretStore {
fn import_presale(&self, json: &[u8], password: &str) -> Result<Address, Error>;
fn import_wallet(&self, json: &[u8], password: &str) -> Result<Address, Error>;
fn copy_account(&self, new_store: &SimpleSecretStore, account: &Address, password: &str, new_password: &str) -> Result<(), Error>;
fn test_password(&self, account: &Address, password: &str) -> Result<bool, Error>;
fn public(&self, account: &Address, password: &str) -> Result<Public, Error>;
fn uuid(&self, account: &Address) -> Result<UUID, Error>;
fn name(&self, account: &Address) -> Result<String, Error>;
fn meta(&self, account: &Address) -> Result<String, Error>;