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210 lines
7.8 KiB
210 lines
7.8 KiB
/* @flow */
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import TrezorConnect from 'trezor-connect';
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import BigNumber from 'bignumber.js';
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import * as BLOCKCHAIN from 'actions/constants/blockchain';
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import type {
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TrezorDevice,
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Dispatch,
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GetState,
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PromiseAction,
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} from 'flowtype';
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import type { EthereumAccount } from 'trezor-connect';
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import type { Token } from 'reducers/TokensReducer';
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import type { NetworkToken } from 'reducers/LocalStorageReducer';
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import * as Web3Actions from './Web3Actions';
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import * as AccountsActions from './AccountsActions';
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export type BlockchainAction = {
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type: typeof BLOCKCHAIN.READY,
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}
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export const discoverAccount = (device: TrezorDevice, address: string, network: string): PromiseAction<EthereumAccount> => async (dispatch: Dispatch): Promise<EthereumAccount> => {
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// get data from connect
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// Temporary disabled, enable after trezor-connect@5.0.32 release
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const txs = await TrezorConnect.ethereumGetAccountInfo({
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account: {
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address,
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block: 0,
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transactions: 0,
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balance: '0',
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nonce: 0,
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},
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coin: network,
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});
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if (!txs.success) {
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throw new Error(txs.payload.error);
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}
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// blockbook web3 fallback
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const web3account = await dispatch(Web3Actions.discoverAccount(address, network));
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// return { transactions: txs.payload, ...web3account };
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return {
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address,
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transactions: txs.payload.transactions,
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block: txs.payload.block,
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balance: web3account.balance,
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nonce: web3account.nonce,
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};
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};
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export const getTokenInfo = (input: string, network: string): PromiseAction<NetworkToken> => async (dispatch: Dispatch): Promise<NetworkToken> => dispatch(Web3Actions.getTokenInfo(input, network));
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export const getTokenBalance = (token: Token): PromiseAction<string> => async (dispatch: Dispatch): Promise<string> => dispatch(Web3Actions.getTokenBalance(token));
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export const getGasPrice = (network: string, defaultGasPrice: number): PromiseAction<BigNumber> => async (dispatch: Dispatch): Promise<BigNumber> => {
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try {
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const gasPrice = await dispatch(Web3Actions.getCurrentGasPrice(network));
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return new BigNumber(gasPrice);
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} catch (error) {
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return new BigNumber(defaultGasPrice);
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}
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};
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const estimateProxy: Array<Promise<string>> = [];
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export const estimateGasLimit = (network: string, data: string, value: string, gasPrice: string): PromiseAction<string> => async (dispatch: Dispatch): Promise<string> => {
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// Since this method could be called multiple times in short period of time
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// check for pending calls in proxy and if there more than two (first is current running and the second is waiting for result of first)
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// TODO: should reject second call immediately?
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if (estimateProxy.length > 0) {
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// wait for proxy result (but do not process it)
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await estimateProxy[0];
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}
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const call = dispatch(Web3Actions.estimateGasLimit(network, {
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to: '',
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data,
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value,
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gasPrice,
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}));
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// add current call to proxy
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estimateProxy.push(call);
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// wait for result
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const result = await call;
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// remove current call from proxy
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estimateProxy.splice(0, 1);
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// return result
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return result;
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};
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export const onBlockMined = (coinInfo: any): PromiseAction<void> => async (dispatch: Dispatch, getState: GetState): Promise<void> => {
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// incoming "coinInfo" from TrezorConnect is CoinInfo | EthereumNetwork type
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const network: string = coinInfo.shortcut.toLowerCase();
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// try to resolve pending transactions
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await dispatch(Web3Actions.resolvePendingTransactions(network));
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await dispatch(Web3Actions.updateGasPrice(network));
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const accounts: Array<any> = getState().accounts.filter(a => a.network === network);
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if (accounts.length > 0) {
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// find out which account changed
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const response = await TrezorConnect.ethereumGetAccountInfo({
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accounts,
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coin: network,
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});
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if (response.success) {
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response.payload.forEach((a, i) => {
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if (a.transactions > 0) {
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// load additional data from Web3 (balance, nonce, tokens)
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dispatch(Web3Actions.updateAccount(accounts[i], a, network));
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} else {
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// there are no new txs, just update block
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dispatch(AccountsActions.update({ ...accounts[i], block: a.block }));
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// HACK: since blockbook can't work with smart contracts for now
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// try to update tokens balances added to this account using Web3
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dispatch(Web3Actions.updateAccountTokens(accounts[i]));
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}
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});
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}
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}
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};
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// not used for now, waiting for fix in blockbook
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/*
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export const onNotification = (payload: any): PromiseAction<void> => async (dispatch: Dispatch, getState: GetState): Promise<void> => {
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// this event can be triggered multiple times
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// 1. check if pair [txid + address] is already in reducer
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const network: string = payload.coin.shortcut.toLowerCase();
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const address: string = EthereumjsUtil.toChecksumAddress(payload.tx.address);
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const txInfo = await dispatch(Web3Actions.getPendingInfo(network, payload.tx.txid));
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// const exists = getState().pending.filter(p => p.id === payload.tx.txid && p.address === address);
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const exists = getState().pending.filter(p => p.address === address);
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if (exists.length < 1) {
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if (txInfo) {
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dispatch({
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type: PENDING.ADD,
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payload: {
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type: 'send',
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id: payload.tx.txid,
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network,
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currency: 'tETH',
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amount: txInfo.value,
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total: '0',
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tx: {},
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nonce: txInfo.nonce,
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address,
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rejected: false,
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},
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});
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} else {
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// tx info not found (yet?)
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// dispatch({
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// type: PENDING.ADD_UNKNOWN,
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// payload: {
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// network,
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// ...payload.tx,
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// }
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// });
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}
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}
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};
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*/
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export const subscribe = (network: string): PromiseAction<void> => async (dispatch: Dispatch, getState: GetState): Promise<void> => {
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const addresses: Array<string> = getState().accounts.filter(a => a.network === network).map(a => a.address); // eslint-disable-line no-unused-vars
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await TrezorConnect.blockchainSubscribe({
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// accounts: addresses,
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accounts: [],
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coin: network,
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});
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};
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// Conditionally subscribe to blockchain backend
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// called after TrezorConnect.init successfully emits TRANSPORT.START event
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// checks if there are discovery processes loaded from LocalStorage
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// if so starts subscription to proper networks
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export const init = (): PromiseAction<void> => async (dispatch: Dispatch, getState: GetState): Promise<void> => {
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if (getState().discovery.length > 0) {
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// get unique networks
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const networks: Array<string> = [];
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getState().discovery.forEach((discovery) => {
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if (networks.indexOf(discovery.network) < 0) {
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networks.push(discovery.network);
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}
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});
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// subscribe
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const results = networks.map(n => dispatch(subscribe(n)));
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// wait for all subscriptions
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await Promise.all(results);
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}
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// continue wallet initialization
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dispatch({
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type: BLOCKCHAIN.READY,
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});
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};
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// Handle BLOCKCHAIN.ERROR event from TrezorConnect
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// disconnect and remove Web3 webscocket instance if exists
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export const error = (payload: any): PromiseAction<void> => async (dispatch: Dispatch): Promise<void> => {
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dispatch(Web3Actions.disconnect(payload.coin));
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}; |