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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| import { app, ipcMain } from 'electron'; // eslint-disable-line import/no-extraneous-dependencies | ||
| import TransportNodeHid from '@ledgerhq/hw-transport-node-hid'; // eslint-disable-line import/no-extraneous-dependencies | ||
| import Lisk from 'lisk-elements'; // eslint-disable-line import/no-extraneous-dependencies | ||
| import { LedgerAccount, SupportedCoin, DposLedger } from 'dpos-ledger-api'; // eslint-disable-line import/no-extraneous-dependencies | ||
| import win from './modules/win'; | ||
|
|
||
| TransportNodeHid.setListenDevicesDebounce(200); | ||
| /* | ||
| TransportNodeHid.setListenDevicesDebug((msg, ...args) => { | ||
| console.log(msg); | ||
| console.log({ | ||
| type: 'listenDevices', | ||
| args, | ||
| }); | ||
| }); | ||
| */ | ||
| let busy = false; | ||
| TransportNodeHid.setListenDevicesPollingSkip(() => busy); | ||
| let ledgerPath = null; | ||
| const getLedgerAccount = (index = 0) => { | ||
| const ledgerAccount = new LedgerAccount(); | ||
| ledgerAccount.coinIndex(SupportedCoin.LISK); | ||
| ledgerAccount.account(index); | ||
| return ledgerAccount; | ||
| }; | ||
|
|
||
| const isValidAddress = address => address.length > 2 && address.length < 22 && address[address.length - 1] === 'L'; | ||
| const isInsideLedgerApp = async (path) => { | ||
| try { | ||
| const transport = await TransportNodeHid.open(path); | ||
| const liskLedger = new DposLedger(transport); | ||
| const ledgerAccount = getLedgerAccount(0); | ||
| const liskAccount = await liskLedger.getPubKey(ledgerAccount); | ||
| transport.close(); | ||
| return isValidAddress(liskAccount.address); | ||
| } catch (e) { | ||
| return false; | ||
| } | ||
| }; | ||
| const ledgerObserver = { | ||
| next: async ({ device, type }) => { | ||
| if (device) { | ||
| if (type === 'add') { | ||
| if (process.platform === 'darwin' || await isInsideLedgerApp(device.path)) { | ||
| ledgerPath = device.path; | ||
| win.send({ event: 'ledgerConnected', value: null }); | ||
| } | ||
| } else if (type === 'remove') { | ||
| if (ledgerPath) { | ||
| ledgerPath = null; | ||
| win.send({ event: 'ledgerDisconnected', value: null }); | ||
| } | ||
| } | ||
| } | ||
| }, | ||
| }; | ||
|
|
||
| let observableListen = null; | ||
| const syncDevices = () => { | ||
| try { | ||
| observableListen = TransportNodeHid.listen(ledgerObserver); | ||
| } catch (e) { | ||
| ledgerPath = null; | ||
| syncDevices(); | ||
| } | ||
| }; | ||
| syncDevices(); | ||
| app.on('will-quit', () => { | ||
| if (observableListen) { | ||
| observableListen.unsubscribe(); | ||
| observableListen = null; | ||
| } | ||
| }); | ||
|
|
||
| const getBufferToHex = buffer => Lisk.cryptography.bufferToHex(buffer); | ||
| const createCommand = (k, fn) => { | ||
| ipcMain.on(`${k}.request`, (event, ...args) => { | ||
| fn(...args) | ||
| .then(r => ({ success: true, data: r })) | ||
| .catch(e => ({ success: false, errorKey: e })) | ||
| .then(r => event.sender.send(`${k}.result`, r)); | ||
| }); | ||
| }; | ||
| // eslint-disable-next-line arrow-body-style | ||
| createCommand('ledgerCommand', (command) => { | ||
| if (ledgerPath) { | ||
| return TransportNodeHid.open(ledgerPath) | ||
| .then(async (transport) => { | ||
| busy = true; | ||
| try { | ||
| const liskLedger = new DposLedger(transport); | ||
| const ledgerAccount = getLedgerAccount(command.data.index); | ||
| let commandResult; | ||
| if (command.action === 'GET_ACCOUNT') { | ||
| commandResult = await liskLedger.getPubKey(ledgerAccount); | ||
| } | ||
| if (command.action === 'SIGN_MSG') { | ||
| const signature = await liskLedger.signMSG(ledgerAccount, command.data.message); | ||
| commandResult = getBufferToHex(signature.slice(0, 64)); | ||
| } | ||
| if (command.action === 'SIGN_TX') { | ||
| commandResult = await liskLedger.signTX(ledgerAccount, command.data.tx, false); | ||
| } | ||
| transport.close(); | ||
| busy = false; | ||
| return Promise.resolve(commandResult); | ||
| } catch (err) { | ||
| transport.close(); | ||
| busy = false; | ||
| if (err.statusText && err.statusText === 'CONDITIONS_OF_USE_NOT_SATISFIED') { | ||
| return Promise.reject(new Error('LEDGER_ACTION_DENIED_BY_USER')); | ||
| } | ||
| return Promise.reject(new Error('LEDGER_ERR_DURING_CONNECTION')); | ||
| } | ||
| }) | ||
| .catch((e) => { | ||
| if (typeof e === 'string') { | ||
| return Promise.reject(e); | ||
| } | ||
| return Promise.reject(new Error('LEDGER_ERR_DURING_CONNECTION')); | ||
| }); | ||
| } | ||
| return Promise.reject(new Error('LEDGER_IS_NOT_CONNECTED')); | ||
| }); |
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