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https://github.com/trezor/trezor-wallet
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add RouterActions
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193
src/actions/RouterActions.js
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193
src/actions/RouterActions.js
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/* @flow */
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import { push } from 'react-router-redux';
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import type {
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RouterLocationState,
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Device,
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TrezorDevice,
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ThunkAction,
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PayloadAction,
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Dispatch,
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GetState,
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} from 'flowtype';
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/*
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* Parse url string to RouterLocationState object (key/value)
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*/
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export const pathToParams = (path: string): PayloadAction<RouterLocationState> => (dispatch: Dispatch, getState: GetState): RouterLocationState => {
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// split url into parts
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const parts: Array<string> = path.split('/').slice(1);
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const params: RouterLocationState = {};
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// return empty params
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if (parts.length < 1 || path === '/') return params;
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// map parts to params by key/value
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// assuming that url is in format: "/key/value"
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for (let i = 0, len = parts.length; i < len; i += 2) {
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params[parts[i]] = parts[i + 1] || parts[i];
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}
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// check for special case: /device/device-id:instance-id
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if (params.hasOwnProperty('device')) {
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const isClonedDevice: Array<string> = params.device.split(':');
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if (isClonedDevice.length > 1) {
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params.device = isClonedDevice[0];
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params.deviceInstance = isClonedDevice[1];
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}
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}
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return params;
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};
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/*
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* RouterLocationState validation
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* Check if requested device or network exists in reducers
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*/
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export const paramsValidation = (params: RouterLocationState): PayloadAction<boolean> => (dispatch: Dispatch, getState: GetState): boolean => {
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// validate requested device
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if (params.hasOwnProperty('device')) {
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const { devices } = getState();
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let device: ?TrezorDevice;
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if (params.hasOwnProperty('deviceInstance')) {
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device = devices.find(d => d.features && d.features.device_id === params.device && d.instance === parseInt(params.deviceInstance, 10));
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} else {
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device = devices.find(d => d.path === params.device || (d.features && d.features.device_id === params.device));
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}
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if (!device) return false;
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}
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// validate requested network
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if (params.hasOwnProperty('network')) {
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const { config } = getState().localStorage;
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const coin = config.coins.find(c => c.network === params.network);
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if (!coin) return false;
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if (!params.account) return false;
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}
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// validate requested account
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// TODO: check if discovery on this network is completed
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// if (params.hasOwnProperty('account')) {
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// }
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return true;
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}
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/*
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* Utility used in "selectDevice" and "selectFirstAvailableDevice"
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* sorting device array by "ts" (timestamp) field
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*/
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const sortDevices = (devices: Array<TrezorDevice>): Array<TrezorDevice> => devices.sort((a, b) => {
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if (!a.ts || !b.ts) {
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return -1;
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}
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return a.ts > b.ts ? -1 : 1;
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});
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/*
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* Compose url from requested device
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*/
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export const selectDevice = (device: TrezorDevice | Device): ThunkAction => (dispatch: Dispatch, getState: GetState): void => {
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let url: ?string;
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if (!device.features) {
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url = `/device/${device.path}/${device.type === 'unreadable' ? 'unreadable' : 'acquire'}`;
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} else if (device.features.bootloader_mode) {
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url = `/device/${device.path}/bootloader`;
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} else if (!device.features.initialized) {
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url = `/device/${device.features.device_id}/initialize`;
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} else if (typeof device.instance === 'number') {
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url = `/device/${device.features.device_id}:${device.instance}`;
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} else {
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url = `/device/${device.features.device_id}`;
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// make sure that device is not TrezorDevice type
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if (!device.hasOwnProperty('ts')) {
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// it is device from trezor-connect triggered by DEVICE.CONNECT event
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// need to lookup if there are unavailable instances
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const available: Array<TrezorDevice> = getState().devices.filter(d => d.path === device.path);
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const latest: Array<TrezorDevice> = sortDevices(available);
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if (latest.length > 0 && latest[0].instance) {
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url += `:${latest[0].instance}`;
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}
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}
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}
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const currentParams: RouterLocationState = getState().router.location.state;
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const requestedParams = dispatch( pathToParams(url) );
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if (currentParams.device !== requestedParams.device || currentParams.deviceInstance !== requestedParams.deviceInstance) {
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dispatch( goto(url) );
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}
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}
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/*
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* Try to find first available device using order:
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* 1. First Unacquired
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* 2. First connected
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* 3. Saved with latest timestamp
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* OR redirect to landing page
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*/
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export const selectFirstAvailableDevice = (): ThunkAction => (dispatch: Dispatch, getState: GetState): void => {
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const { devices } = getState();
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if (devices.length > 0) {
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const unacquired = devices.find(d => !d.features);
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if (unacquired) {
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dispatch( selectDevice(unacquired) );
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} else {
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const latest: Array<TrezorDevice> = sortDevices(devices);
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const firstConnected: ?TrezorDevice = latest.find(d => d.connected);
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dispatch( selectDevice(firstConnected || latest[0]) );
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}
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} else {
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dispatch( gotoLandingPage() );
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}
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}
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/*
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* Internal method. redirect to given url
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*/
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const goto = (url: string): ThunkAction => (dispatch: Dispatch, getState: GetState): void => {
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if (getState().router.location.pathname !== url) {
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dispatch( push(url) );
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}
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}
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/*
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* Check if requested OR current (from RouterReducer) url is landing page
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*/
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export const isLandingPageUrl = (url?: string): PayloadAction<boolean> => (dispatch: Dispatch, getState: GetState): boolean => {
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if (typeof url !== 'string') {
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url = getState().router.location.pathname;
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}
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// TODO: add more landing page cases/urls to config.json (like /tools etc)
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return (url === '/' || url === '/bridge');
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}
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/*
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* Try to redirect to landing page
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*/
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export const gotoLandingPage = (): ThunkAction => (dispatch: Dispatch, getState: GetState): void => {
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// check if current url is not valid landing page url
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const isLandingPage = dispatch( isLandingPageUrl() );
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if (!isLandingPage) {
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dispatch( goto('/') );
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}
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}
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/*
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* Go to given device settings page
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*/
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export const gotoDeviceSettings = (device: TrezorDevice): ThunkAction => (dispatch: Dispatch): void => {
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if (device.features) {
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const devUrl: string = `${device.features.device_id}${device.instance ? `:${device.instance}` : ''}`;
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dispatch( goto(`/device/${devUrl}/settings`) );
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}
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};
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/*
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* Try to redirect to initial url
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*/
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export const setInitialUrl = (): PayloadAction<boolean> => (dispatch: Dispatch, getState: GetState): boolean => {
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// TODO
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return false;
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}
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