MyCrypto/common/containers/Tabs/SendTransaction/index.tsx

495 lines
14 KiB
TypeScript

import { showNotification, TShowNotification } from 'actions/notifications';
import { broadcastTx, TBroadcastTx } from 'actions/wallet';
import Big from 'bignumber.js';
import { BalanceSidebar } from 'components';
// COMPONENTS
import { UnlockHeader } from 'components/ui';
import { donationAddressMap, NetworkConfig, NodeConfig } from 'config/data';
import TabSection from 'containers/TabSection';
// CONFIG
import { TransactionWithoutGas } from 'libs/messages';
import { RPCNode } from 'libs/nodes';
import {
BroadcastTransactionStatus,
CompleteTransaction,
formatTxInput,
generateCompleteTransaction,
getBalanceMinusGasCosts,
TransactionInput
} from 'libs/transaction';
import { Ether, GWei, UnitKey, Wei } from 'libs/units';
import { isValidETHAddress } from 'libs/validators';
// LIBS
import { IWallet } from 'libs/wallet/IWallet';
import pickBy from 'lodash/pickBy';
import React from 'react';
// REDUX
import { connect } from 'react-redux';
import { AppState } from 'reducers';
import {
getGasPriceGwei,
getNetworkConfig,
getNodeConfig,
getNodeLib
} from 'selectors/config';
// SELECTORS
import {
getTokenBalances,
getTokens,
getTxFromBroadcastTransactionStatus,
MergedToken,
TokenBalance
} from 'selectors/wallet';
import translate from 'translations';
// UTILS
import { formatGasLimit } from 'utils/formatters';
import {
AddressField,
AmountField,
ConfirmationModal,
CustomMessage,
DataField,
GasField
} from './components';
import queryString from 'query-string';
// MISC
import customMessages from './messages';
function getParam(query: { [key: string]: string }, key: string) {
const keys = Object.keys(query);
const index = keys.findIndex(k => k.toLowerCase() === key.toLowerCase());
if (index === -1) {
return null;
}
return query[keys[index]];
}
interface State {
hasQueryString: boolean;
readOnly: boolean;
to: string;
// amount value
value: string;
unit: UnitKey;
token?: MergedToken | null;
gasLimit: string;
data: string;
gasChanged: boolean;
transaction: CompleteTransaction | null;
showTxConfirm: boolean;
generateDisabled: boolean;
}
interface Props {
wallet: IWallet;
balance: Ether;
node: NodeConfig;
nodeLib: RPCNode;
network: NetworkConfig;
tokens: MergedToken[];
tokenBalances: TokenBalance[];
gasPrice: Wei;
transactions: BroadcastTransactionStatus[];
showNotification: TShowNotification;
broadcastTx: TBroadcastTx;
location: { search: string };
}
const initialState: State = {
hasQueryString: false,
readOnly: false,
to: '',
value: '',
unit: 'ether',
token: null,
gasLimit: '21000',
data: '',
gasChanged: false,
showTxConfirm: false,
transaction: null,
generateDisabled: true
};
export class SendTransaction extends React.Component<Props, State> {
public state: State = initialState;
public componentDidMount() {
const queryPresets = pickBy(this.parseQuery());
if (Object.keys(queryPresets).length) {
this.setState({ ...queryPresets, hasQueryString: true });
}
}
public componentDidUpdate(prevProps: Props, prevState: State) {
// TODO listen to gas price changes here
// TODO debounce the call
if (
// if gas has not changed
!this.state.gasChanged &&
// if we have valid tx
this.isValid() &&
// if any relevant fields changed
(this.state.to !== prevState.to ||
this.state.value !== prevState.value ||
this.state.unit !== prevState.unit ||
this.state.data !== prevState.data)
) {
if (!isNaN(parseInt(this.state.value, 10))) {
this.estimateGas();
}
}
if (this.state.generateDisabled === this.isValid()) {
this.setState({ generateDisabled: !this.isValid() });
}
const componentStateTransaction = this.state.transaction;
if (componentStateTransaction) {
// lives in redux state
const currentTxAsSignedTransaction = getTxFromBroadcastTransactionStatus(
this.props.transactions,
componentStateTransaction.signedTx
);
// if there is a matching tx in redux state
if (currentTxAsSignedTransaction) {
// if the broad-casted transaction attempt is successful, clear the form
if (currentTxAsSignedTransaction.successfullyBroadcast) {
this.resetTx();
}
}
}
}
public render() {
const unlocked = !!this.props.wallet;
const {
to,
value,
unit,
gasLimit,
data,
readOnly,
hasQueryString,
showTxConfirm,
transaction
} = this.state;
const customMessage = customMessages.find(m => m.to === to);
return (
<TabSection>
<section className="Tab-content">
<UnlockHeader title={'NAV_SendEther'} />
<div className="row">
{/* Send Form */}
{unlocked && (
<main className="col-sm-8">
<div className="Tab-content-pane">
{hasQueryString && (
<div className="alert alert-info">
<p>{translate('WARN_Send_Link')}</p>
</div>
)}
<AddressField
placeholder={donationAddressMap.ETH}
value={this.state.to}
onChange={readOnly ? null : this.onAddressChange}
/>
<AmountField
value={value}
unit={unit}
tokens={this.props.tokenBalances
.filter(token => !token.balance.eq(0))
.map(token => token.symbol)
.sort()}
onChange={readOnly ? void 0 : this.onAmountChange}
/>
<GasField
value={gasLimit}
onChange={readOnly ? void 0 : this.onGasChange}
/>
{unit === 'ether' && (
<DataField
value={data}
onChange={readOnly ? void 0 : this.onDataChange}
/>
)}
<CustomMessage message={customMessage} />
<div className="row form-group">
<div className="col-xs-12 clearfix">
<button
disabled={this.state.generateDisabled}
className="btn btn-info btn-block"
onClick={this.generateTxFromState}
>
{translate('SEND_generate')}
</button>
</div>
</div>
{transaction && (
<div>
<div className="row form-group">
<div className="col-sm-6">
<label>{translate('SEND_raw')}</label>
<textarea
className="form-control"
value={transaction.rawTx}
rows={4}
readOnly={true}
/>
</div>
<div className="col-sm-6">
<label>{translate('SEND_signed')}</label>
<textarea
className="form-control"
value={transaction.signedTx}
rows={4}
readOnly={true}
/>
</div>
</div>
<div className="form-group">
<button
className="btn btn-primary btn-block col-sm-11"
disabled={!this.state.transaction}
onClick={this.openTxModal}
>
{translate('SEND_trans')}
</button>
</div>
</div>
)}
</div>
</main>
)}
{/* Sidebar */}
{unlocked && (
<section className="col-sm-4">
<BalanceSidebar />
</section>
)}
</div>
{transaction &&
showTxConfirm && (
<ConfirmationModal
wallet={this.props.wallet}
node={this.props.node}
signedTx={transaction.signedTx}
onClose={this.hideConfirmTx}
onConfirm={this.confirmTx}
/>
)}
</section>
</TabSection>
);
}
public parseQuery() {
const searchStr = this.props.location.search;
const query = queryString.parse(searchStr);
const to = getParam(query, 'to');
const data = getParam(query, 'data');
// FIXME validate token against presets
const unit = getParam(query, 'tokenSymbol');
const value = getParam(query, 'value');
let gasLimit = getParam(query, 'gas');
if (gasLimit === null) {
gasLimit = getParam(query, 'limit');
}
const readOnly = getParam(query, 'readOnly') != null;
return { to, data, value, unit, gasLimit, readOnly };
}
public isValid() {
const { to, value, gasLimit } = this.state;
return (
isValidETHAddress(to) &&
value &&
Number(value) > 0 &&
!isNaN(Number(value)) &&
isFinite(Number(value)) &&
!isNaN(parseInt(gasLimit, 10)) &&
isFinite(parseInt(gasLimit, 10))
);
}
public async getFormattedTxFromState(): Promise<TransactionWithoutGas> {
const { wallet } = this.props;
const { token, unit, value, to, data } = this.state;
const transactionInput: TransactionInput = {
token,
unit,
value,
to,
data
};
return await formatTxInput(wallet, transactionInput);
}
public async estimateGas() {
if (isNaN(parseInt(this.state.value, 10))) {
return;
}
try {
const cachedFormattedTx = await this.getFormattedTxFromState();
// Grab a reference to state. If it has changed by the time the estimateGas
// call comes back, we don't want to replace the gasLimit in state.
const state = this.state;
const gasLimit = await this.props.nodeLib.estimateGas(cachedFormattedTx);
if (this.state === state) {
this.setState({ gasLimit: formatGasLimit(gasLimit, state.unit) });
} else {
// state has changed, so try again from the start (with the hope that state won't change by the next time)
this.estimateGas();
}
} catch (error) {
this.setState({ generateDisabled: true });
this.props.showNotification('danger', error.message, 5000);
}
}
public onAddressChange = (value: string) => {
this.setState({
to: value
});
};
public onDataChange = (value: string) => {
if (this.state.unit === 'ether') {
this.setState({ data: value });
}
};
public onGasChange = (value: string) => {
this.setState({ gasLimit: value, gasChanged: true });
};
public handleEverythingAmountChange = (
value: string,
unit: string
): string => {
if (unit === 'ether') {
const { balance, gasPrice } = this.props;
const { gasLimit } = this.state;
const weiBalance = balance.toWei();
const bigGasLimit = new Big(gasLimit);
value = getBalanceMinusGasCosts(
bigGasLimit,
gasPrice,
weiBalance
).toString();
} else {
const tokenBalance = this.props.tokenBalances.find(
tBalance => tBalance.symbol === unit
);
if (!tokenBalance) {
throw new Error(`${unit}: not found in token balances;`);
}
value = tokenBalance.balance.toString();
}
return value;
};
public onAmountChange = (value: string, unit: UnitKey) => {
if (value === 'everything') {
value = this.handleEverythingAmountChange(value, unit);
}
let transaction = this.state.transaction;
let generateDisabled = this.state.generateDisabled;
if (unit && unit !== this.state.unit) {
value = '';
transaction = null;
generateDisabled = true;
}
const token = this.props.tokens.find(x => x.symbol === unit);
this.setState({
value,
unit,
token,
transaction,
generateDisabled
});
};
public resetJustTx = async (): Promise<any> =>
new Promise(resolve =>
this.setState(
{
transaction: null
},
resolve
)
);
public generateTxFromState = async () => {
await this.resetJustTx();
const { nodeLib, wallet, gasPrice, network } = this.props;
const { token, unit, value, to, data, gasLimit } = this.state;
const chainId = network.chainId;
const transactionInput = {
token,
unit,
value,
to,
data
};
const bigGasLimit = new Big(gasLimit);
try {
const signedTx = await generateCompleteTransaction(
wallet,
nodeLib,
gasPrice,
bigGasLimit,
chainId,
transactionInput
);
this.setState({ transaction: signedTx });
} catch (err) {
this.props.showNotification('danger', err.message, 5000);
}
};
public openTxModal = () => {
this.setState({ showTxConfirm: true });
};
public hideConfirmTx = () => {
this.setState({ showTxConfirm: false });
};
public resetTx = () => {
this.setState({
to: '',
value: '',
transaction: null
});
};
public confirmTx = (signedTx: string) => {
this.props.broadcastTx(signedTx);
};
}
function mapStateToProps(state: AppState) {
return {
wallet: state.wallet.inst,
balance: state.wallet.balance,
tokenBalances: getTokenBalances(state),
node: getNodeConfig(state),
nodeLib: getNodeLib(state),
network: getNetworkConfig(state),
tokens: getTokens(state),
gasPrice: new GWei(getGasPriceGwei(state)).toWei(),
transactions: state.wallet.transactions
};
}
export default connect(mapStateToProps, { showNotification, broadcastTx })(
SendTransaction
);