openethereum/util/fake-hardware-wallet/src/lib.rs
Niklas Adolfsson 1a16f335fa Disable hardware-wallets on platforms that don't support libusb (#8464)
* disable hardware-wallets that don't support libusb

* address grumbles

* nits

* Refactor to get rid off as much annotations asap

* Might consume slight more memory than pure conditional compilation
flags

* formatting nits

* Enable libusb for android

* Tested by it compiling succesfully with `cargo build --target=armv7--linux-androideabi`
* The binary is ~66 MB

```bash
$ size
size target/armv7-linux-androideabi/release/parity
text    	data     	bss     	dec     	hex 		filename
50676230        416200   	31456 		51123886        30c16ae 	target/armv7-linux-androideabi/release/parity
```

* Move all `fake-hardware-wallet` to its own crate

* Removes some conditional compilation flags
* Introduces `fake-hardware-wallet` crate

* return error if no hardware wallets are found
2018-06-26 09:03:38 +02:00

102 lines
2.5 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/>.
//! Dummy module for platforms that does not provide support for hardware wallets (libusb)
extern crate ethereum_types;
extern crate ethkey;
use std::fmt;
use ethereum_types::U256;
use ethkey::{Address, Signature};
pub struct WalletInfo {
pub address: Address,
pub name: String,
pub manufacturer: String,
}
#[derive(Debug)]
/// `ErrorType` for devices with no `hardware wallet`
pub enum Error {
NoWallet,
KeyNotFound,
}
pub struct TransactionInfo {
/// Nonce
pub nonce: U256,
/// Gas price
pub gas_price: U256,
/// Gas limit
pub gas_limit: U256,
/// Receiver
pub to: Option<Address>,
/// Value
pub value: U256,
/// Data
pub data: Vec<u8>,
/// Chain ID
pub chain_id: Option<u64>,
}
pub enum KeyPath {
/// Ethereum.
Ethereum,
/// Ethereum classic.
EthereumClassic,
}
/// `HardwareWalletManager` for devices with no `hardware wallet`
pub struct HardwareWalletManager;
impl HardwareWalletManager {
pub fn new() -> Result<Self, Error> {
Err(Error::NoWallet)
}
pub fn set_key_path(&self, _key_path: KeyPath) {}
pub fn wallet_info(&self, _: &Address) -> Option<WalletInfo> {
None
}
pub fn list_wallets(&self) -> Vec<WalletInfo> {
Vec::with_capacity(0)
}
pub fn list_locked_wallets(&self) -> Result<Vec<String>, Error> {
Err(Error::NoWallet)
}
pub fn pin_matrix_ack(&self, _: &str, _: &str) -> Result<bool, Error> {
Err(Error::NoWallet)
}
pub fn sign_transaction(&self, _address: &Address, _transaction: &TransactionInfo, _rlp_transaction: &[u8]) -> Result<Signature, Error> {
Err(Error::NoWallet) }
pub fn sign_message(&self, _address: &Address, _msg: &[u8]) -> Result<Signature, Error> {
Err(Error::NoWallet)
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "No hardware wallet!!")
}
}