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use std::sync::{Arc, Weak};
use ethcore::account_provider::AccountProvider;
use ethcore::client::MiningBlockChainClient;
use ethcore::miner::MinerService;
use util::{Address, U128, Uint};
use futures::{self, Future, BoxFuture};
use jsonrpc_core::Error;
use v1::helpers::errors;
use v1::helpers::dispatch::{self, sign_and_dispatch};
use v1::traits::Personal;
use v1::types::{H160 as RpcH160, H256 as RpcH256, U128 as RpcU128, TransactionRequest};
use v1::metadata::Metadata;
pub struct PersonalClient<C, M> where
C: MiningBlockChainClient,
M: MinerService,
{
accounts: Weak<AccountProvider>,
client: Weak<C>,
miner: Weak<M>,
allow_perm_unlock: bool,
}
impl<C, M> PersonalClient<C, M> where
C: MiningBlockChainClient,
M: MinerService,
{
pub fn new(store: &Arc<AccountProvider>, client: &Arc<C>, miner: &Arc<M>, allow_perm_unlock: bool) -> Self {
PersonalClient {
accounts: Arc::downgrade(store),
client: Arc::downgrade(client),
miner: Arc::downgrade(miner),
allow_perm_unlock: allow_perm_unlock,
}
}
fn active(&self) -> Result<(), Error> {
take_weak!(self.client).keep_alive();
Ok(())
}
}
impl<C, M> Personal for PersonalClient<C, M> where
C: MiningBlockChainClient + 'static,
M: MinerService + 'static,
{
type Metadata = Metadata;
fn accounts(&self) -> Result<Vec<RpcH160>, Error> {
self.active()?;
let store = take_weak!(self.accounts);
let accounts = store.accounts().map_err(|e| errors::account("Could not fetch accounts.", e))?;
Ok(accounts.into_iter().map(Into::into).collect::<Vec<RpcH160>>())
}
fn new_account(&self, pass: String) -> Result<RpcH160, Error> {
self.active()?;
let store = take_weak!(self.accounts);
store.new_account(&pass)
.map(Into::into)
.map_err(|e| errors::account("Could not create account.", e))
}
fn unlock_account(&self, account: RpcH160, account_pass: String, duration: Option<RpcU128>) -> Result<bool, Error> {
self.active()?;
let account: Address = account.into();
let store = take_weak!(self.accounts);
let duration = match duration {
None => None,
Some(duration) => {
let duration: U128 = duration.into();
let v = duration.low_u64() as u32;
if duration != v.into() {
return Err(errors::invalid_params("Duration", "Invalid Number"));
} else {
Some(v)
}
},
};
let r = match (self.allow_perm_unlock, duration) {
(false, _) => store.unlock_account_temporarily(account, account_pass),
(true, Some(0)) => store.unlock_account_permanently(account, account_pass),
(true, Some(d)) => store.unlock_account_timed(account, account_pass, d * 1000),
(true, None) => store.unlock_account_timed(account, account_pass, 300_000),
};
match r {
Ok(_) => Ok(true),
Err(_) => Ok(false),
}
}
fn send_transaction(&self, meta: Metadata, request: TransactionRequest, password: String) -> BoxFuture<RpcH256, Error> {
let sign_and_send = move || {
self.active()?;
let client = take_weak!(self.client);
let miner = take_weak!(self.miner);
let accounts = take_weak!(self.accounts);
let default_account = match request.from {
Some(ref account) => account.clone().into(),
None => accounts
.default_address(meta.dapp_id.unwrap_or_default().into())
.map_err(|e| errors::account("Cannot find default account.", e))?,
};
let request = dispatch::fill_optional_fields(request.into(), default_account, &*client, &*miner);
sign_and_dispatch(
&*client,
&*miner,
&*accounts,
request,
dispatch::SignWith::Password(password)
).map(|v| v.into_value().into())
};
futures::done(sign_and_send()).boxed()
}
}