mirror of https://github.com/trezor/trezor-wallet
Szymon Lesisz
6 years ago
parent
6bc7a2a0f2
commit
977d9f3983
@ -0,0 +1,310 @@
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/* @flow */
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'use strict';
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import { TRANSPORT, DEVICE } from 'trezor-connect';
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import * as CONNECT from '../actions/constants/TrezorConnect';
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import * as WALLET from '../actions/constants/wallet';
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import type { Action, TrezorDevice } from '~/flowtype';
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import type { Device } from 'trezor-connect';
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export type State = Array<TrezorDevice>;
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const initialState: State = [];
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const mergeDevices = (current: TrezorDevice, upcoming: Device | TrezorDevice): TrezorDevice => {
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// do not merge if passphrase protection was changed
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// if (upcoming.features && current.features) {
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// if (upcoming.features.passphrase_protection !== current.features.passphrase_protection) {
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// // device settings has been changed, reset state
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// // dev.state = null;
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// }
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// }
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let instanceLabel = current.instanceLabel;
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if (upcoming.label !== current.label) {
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instanceLabel = upcoming.label
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if (typeof current.instance === 'number') {
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instanceLabel += ` (${current.instanceName || current.instance})`;
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}
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}
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const dev: TrezorDevice = {
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// ...current,
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...upcoming,
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// make sure that instance specific variables will not be overridden
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connected: typeof upcoming.connected === 'boolean' ? upcoming.connected : current.connected,
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available: typeof upcoming.available === 'boolean' ? upcoming.available : current.available,
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remember: typeof upcoming.remember === 'boolean' ? upcoming.remember : current.remember,
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instance: current.instance,
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instanceLabel,
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instanceName: typeof upcoming.instanceName === 'string' ? upcoming.instanceName : current.instanceName,
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state: current.state,
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ts: typeof upcoming.ts === 'number' ? upcoming.ts : current.ts,
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}
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// corner-case: trying to merge unacquired device with acquired
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// make sure that sensitive fields will not be changed and device will remain acquired
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if (upcoming.unacquired && current.state) {
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dev.unacquired = false;
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dev.features = current.features;
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dev.label = current.label;
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}
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return dev;
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}
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const addDevice = (state: State, device: Device): State => {
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let affectedDevices: Array<TrezorDevice> = [];
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let otherDevices: Array<TrezorDevice> = [];
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if (!device.features) {
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// check if connected device is unacquired, and it's already exists
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affectedDevices = state.filter(d => d.path === device.path);
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// if so, ignore this action
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if (affectedDevices.length > 0) {
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return state;
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}
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otherDevices = state.filter(d => affectedDevices.indexOf(d) === -1);
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} else {
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affectedDevices = state.filter(d => d.features && d.features.device_id === device.features.device_id);
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const unacquiredDevices = state.filter(d => d.path.length > 0 && d.path === device.path);
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otherDevices = state.filter(d => affectedDevices.indexOf(d) < 0 && unacquiredDevices.indexOf(d) < 0);
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}
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const newDevice: TrezorDevice = {
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...device,
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acquiring: false,
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remember: false,
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connected: true,
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available: true,
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path: device.path,
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label: device.label,
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state: null,
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instanceLabel: device.label,
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instanceName: null,
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ts: new Date().getTime(),
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}
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if (affectedDevices.length > 0 ) {
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// check if freshly added device has different "passphrase_protection" settings
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let hasDifferentPassphraseSettings: boolean = false;
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let hasInstancesWithPassphraseSettings: boolean = false;
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const changedDevices: Array<TrezorDevice> = affectedDevices.map(d => {
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if (d.features && d.features.passphrase_protection === device.features.passphrase_protection) {
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hasInstancesWithPassphraseSettings = true;
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return mergeDevices(d, { ...device, connected: true, available: true } );
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} else {
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hasDifferentPassphraseSettings = true;
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d.connected = true;
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d.available = false;
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return d;
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}
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});
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// edge case: freshly connected device has different "passphrase_protection" than saved instances
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// need to automatically create another instance with default instance name
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if (hasDifferentPassphraseSettings && !hasInstancesWithPassphraseSettings) {
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const instance = getNewInstance(affectedDevices, device);
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newDevice.instance = instance;
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newDevice.instanceLabel = `${device.label} (${instance})`;
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changedDevices.push(newDevice);
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}
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return otherDevices.concat(changedDevices);
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} else {
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return otherDevices.concat([newDevice]);
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}
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}
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const duplicate = (state: State, device: TrezorDevice): State => {
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if (!device.features) return state;
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const newState: State = [ ...state ];
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const instance: number = getNewInstance(state, device);
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const newDevice: TrezorDevice = {
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...device,
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// acquiring: false,
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remember: false,
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state: null,
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// instance, (instance is already part of device - added in modal)
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instanceLabel: `${device.label} (${ device.instanceName || instance })`,
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ts: new Date().getTime(),
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}
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newState.push(newDevice);
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return newState;
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}
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const changeDevice = (state: State, device: Device): State => {
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// change only acquired devices
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if (!device.features) return state;
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// find devices with the same device_id and passphrase_protection settings
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// or devices with the same path (TODO: should be that way?)
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const affectedDevices: Array<TrezorDevice> = state.filter(d =>
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(d.features && d.features.device_id === device.features.device_id && d.features.passphrase_protection === device.features.passphrase_protection) ||
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(d.features && d.path.length > 0 && d.path === device.path)
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);
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const otherDevices: Array<TrezorDevice> = state.filter(d => affectedDevices.indexOf(d) === -1);
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if (affectedDevices.length > 0) {
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// merge incoming device with State
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const changedDevices = affectedDevices.map(d => mergeDevices(d, device));
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return otherDevices.concat(changedDevices);
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}
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return state;
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}
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const authDevice = (state: State, device: TrezorDevice, deviceState: string): State => {
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const affectedDevice: ?TrezorDevice = state.find(d => d.path === device.path && d.instance === device.instance);
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// device could already have own state from trezor-connect, do not override it
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if (affectedDevice && !affectedDevice.state) {
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const otherDevices: Array<TrezorDevice> = state.filter(d => d !== affectedDevice);
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affectedDevice.state = deviceState;
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return otherDevices.concat([affectedDevice]);
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}
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return state;
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}
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// Transform JSON form local storage into State
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const devicesFromStorage = (devices: Array<TrezorDevice>): State => {
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return devices.map( (d: TrezorDevice) => {
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return {
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...d,
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connected: false,
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available: false,
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path: '',
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acquiring: false,
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featuresNeedsReload: false,
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isUsedElsewhere: false
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}
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});
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}
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// Remove all device reference from State
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const forgetDevice = (state: State, device: TrezorDevice): State => {
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// remove all instances after disconnect (remember request declined)
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// TODO: filter clones
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return state.filter(d => d.remember || (d.features && device.features && d.features.device_id !== device.features.device_id) || (!d.features && d.path !== device.path));
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}
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// Remove single device reference from State
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const forgetSingleDevice = (state: State, device: TrezorDevice): State => {
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// remove only one instance (called from Aside button)
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const newState: State = [ ...state ];
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newState.splice(newState.indexOf(device), 1);
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return newState;
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}
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const disconnectDevice = (state: State, device: Device): State => {
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const affectedDevices: State = state.filter(d => d.path === device.path || (d.features && device.features && d.features.device_id === device.features.device_id));
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const otherDevices: State = state.filter(d => affectedDevices.indexOf(d) === -1);
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if (affectedDevices.length > 0) {
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const acquiredDevices = affectedDevices.filter(d => !d.unacquired && d.state);
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return otherDevices.concat( acquiredDevices.map(d => {
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d.connected = false;
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d.available = false;
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d.isUsedElsewhere = false;
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d.featuresNeedsReload = false;
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d.path = '';
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return d;
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}));
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}
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return state;
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}
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const onSelectedDevice = (state: State, device: ?TrezorDevice): State => {
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if (device) {
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const otherDevices: Array<TrezorDevice> = state.filter(d => d !== device);
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return otherDevices.concat([ { ...device, ts: new Date().getTime() } ]);
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}
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return state;
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}
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export default function devices(state: State = initialState, action: Action): State {
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switch (action.type) {
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case CONNECT.DEVICE_FROM_STORAGE :
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return devicesFromStorage(action.payload);
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case CONNECT.DUPLICATE :
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return duplicate(state, action.device);
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case CONNECT.AUTH_DEVICE :
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return authDevice(state, action.device, action.state);
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case CONNECT.REMEMBER :
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return changeDevice(state, { ...action.device, path: '', remember: true } );
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case CONNECT.FORGET :
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return forgetDevice(state, action.device);
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case CONNECT.FORGET_SINGLE :
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return forgetSingleDevice(state, action.device);
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case DEVICE.CONNECT :
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case DEVICE.CONNECT_UNACQUIRED :
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return addDevice(state, action.device);
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case DEVICE.CHANGED :
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return changeDevice(state, { ...action.device, connected: true, available: true });
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// TODO: check if available will propagate to unavailable
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case DEVICE.DISCONNECT :
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case DEVICE.DISCONNECT_UNACQUIRED :
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return disconnectDevice(state, action.device);
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case WALLET.SET_SELECTED_DEVICE :
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return onSelectedDevice(state, action.device);
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default:
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return state;
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}
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}
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// UTILS
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export const getNewInstance = (devices: State, device: Device | TrezorDevice): number => {
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const affectedDevices: State = devices.filter(d => d.features && device.features && d.features.device_id === device.features.device_id)
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.sort((a, b) => {
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if (!a.instance) {
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return -1;
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} else {
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return !b.instance || a.instance > b.instance ? 1 : -1;
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}
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});
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const instance: number = affectedDevices.reduce((inst, dev) => {
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return dev.instance ? dev.instance + 1 : inst + 1;
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}, 0);
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return instance;
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}
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export const findDevice = (devices: State, deviceId: string, deviceState: string, instance: ?number): ?TrezorDevice => {
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return devices.find(d => {
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// TODO: && (instance && d.instance === instance)
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if (d.features && d.features.device_id === deviceId && d.state === deviceState) {
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return true;
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}
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return false;
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});
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}
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