openethereum/accounts/src/account_data.rs

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// Copyright 2015-2019 Parity Technologies (UK) Ltd.
// This file is part of Parity Ethereum.
// Parity Ethereum 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 Ethereum 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 Ethereum. If not, see <http://www.gnu.org/licenses/>.
//! Account Metadata
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use std::{collections::HashMap, time::Instant};
use ethkey::{Address, Password};
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use serde_derive::{Deserialize, Serialize};
use serde_json;
/// Type of unlock.
#[derive(Clone, PartialEq)]
pub enum Unlock {
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/// If account is unlocked temporarily, it should be locked after first usage.
OneTime,
/// Account unlocked permanently can always sign message.
/// Use with caution.
Perm,
/// Account unlocked with a timeout
Timed(Instant),
}
/// Data associated with account.
#[derive(Clone)]
pub struct AccountData {
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pub unlock: Unlock,
pub password: Password,
}
/// Collected account metadata
#[derive(Default, Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct AccountMeta {
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/// The name of the account.
pub name: String,
/// The rest of the metadata of the account.
pub meta: String,
/// The 128-bit Uuid of the account, if it has one (brain-wallets don't).
pub uuid: Option<String>,
}
impl AccountMeta {
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/// Read a hash map of Address -> AccountMeta
pub fn read<R>(reader: R) -> Result<HashMap<Address, Self>, serde_json::Error>
where
R: ::std::io::Read,
{
serde_json::from_reader(reader)
}
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/// Write a hash map of Address -> AccountMeta
pub fn write<W>(m: &HashMap<Address, Self>, writer: &mut W) -> Result<(), serde_json::Error>
where
W: ::std::io::Write,
{
serde_json::to_writer(writer, m)
}
}