openethereum/crates/accounts/ethstore/src/import.rs
2021-01-14 15:30:57 +01:00

68 lines
2.1 KiB
Rust

// Copyright 2015-2020 Parity Technologies (UK) Ltd.
// This file is part of OpenEthereum.
// OpenEthereum 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.
// OpenEthereum 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 OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
use std::{collections::HashSet, fs, path::Path};
use accounts_dir::{DiskKeyFileManager, KeyDirectory, KeyFileManager};
use ethkey::Address;
use Error;
/// Import an account from a file.
pub fn import_account(path: &Path, dst: &dyn KeyDirectory) -> Result<Address, Error> {
let key_manager = DiskKeyFileManager::default();
let existing_accounts = dst
.load()?
.into_iter()
.map(|a| a.address)
.collect::<HashSet<_>>();
let filename = path
.file_name()
.and_then(|n| n.to_str())
.map(|f| f.to_owned());
let account = fs::File::open(&path)
.map_err(Into::into)
.and_then(|file| key_manager.read(filename, file))?;
let address = account.address.clone();
if !existing_accounts.contains(&address) {
dst.insert(account)?;
}
Ok(address)
}
/// Import all accounts from one directory to the other.
pub fn import_accounts(
src: &dyn KeyDirectory,
dst: &dyn KeyDirectory,
) -> Result<Vec<Address>, Error> {
let accounts = src.load()?;
let existing_accounts = dst
.load()?
.into_iter()
.map(|a| a.address)
.collect::<HashSet<_>>();
accounts
.into_iter()
.filter(|a| !existing_accounts.contains(&a.address))
.map(|a| {
let address = a.address.clone();
dst.insert(a)?;
Ok(address)
})
.collect()
}