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mod.rs
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mod.rs
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// Copyright 2015-2017 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/>.
//! Accounts Directory
use std::path::{PathBuf};
use {SafeAccount, Error};
mod disk;
mod memory;
mod vault;
pub mod paths;
/// `VaultKeyDirectory::set_key` error
#[derive(Debug)]
pub enum SetKeyError {
/// Error is fatal and directory is probably in inconsistent state
Fatal(Error),
/// Error is non fatal, directory is reverted to pre-operation state
NonFatalOld(Error),
/// Error is non fatal, directory is consistent with new key
NonFatalNew(Error),
}
/// Vault key
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct VaultKey {
/// Vault password
pub password: String,
/// Number of iterations to produce a derived key from password
pub iterations: u32,
}
/// Keys directory
pub trait KeyDirectory: Send + Sync {
/// Read keys from directory
fn load(&self) -> Result<Vec<SafeAccount>, Error>;
/// Insert new key to directory
fn insert(&self, account: SafeAccount) -> Result<SafeAccount, Error>;
/// Update key in the directory
fn update(&self, account: SafeAccount) -> Result<SafeAccount, Error>;
/// Remove key from directory
fn remove(&self, account: &SafeAccount) -> Result<(), Error>;
/// Get directory filesystem path, if available
fn path(&self) -> Option<&PathBuf> { None }
/// Return vault provider, if available
fn as_vault_provider(&self) -> Option<&VaultKeyDirectoryProvider> { None }
/// Unique representation of directory account collection
fn unique_repr(&self) -> Result<u64, Error>;
}
/// Vaults provider
pub trait VaultKeyDirectoryProvider {
/// Create new vault with given key
fn create(&self, name: &str, key: VaultKey) -> Result<Box<VaultKeyDirectory>, Error>;
/// Open existing vault with given key
fn open(&self, name: &str, key: VaultKey) -> Result<Box<VaultKeyDirectory>, Error>;
/// List all vaults
fn list_vaults(&self) -> Result<Vec<String>, Error>;
/// Get vault meta
fn vault_meta(&self, name: &str) -> Result<String, Error>;
}
/// Vault directory
pub trait VaultKeyDirectory: KeyDirectory {
/// Cast to `KeyDirectory`
fn as_key_directory(&self) -> &KeyDirectory;
/// Vault name
fn name(&self) -> &str;
/// Get vault key
fn key(&self) -> VaultKey;
/// Set new key for vault
fn set_key(&self, key: VaultKey) -> Result<(), SetKeyError>;
/// Get vault meta
fn meta(&self) -> String;
/// Set vault meta
fn set_meta(&self, meta: &str) -> Result<(), Error>;
}
pub use self::disk::RootDiskDirectory;
pub use self::memory::MemoryDirectory;
pub use self::vault::VaultDiskDirectory;
impl VaultKey {
/// Create new vault key
pub fn new(password: &str, iterations: u32) -> Self {
VaultKey {
password: password.to_owned(),
iterations: iterations,
}
}
}