128 lines
2.9 KiB
JavaScript
128 lines
2.9 KiB
JavaScript
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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import React, { Component, PropTypes } from 'react';
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import { debounce } from 'lodash';
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import { FormattedMessage } from 'react-intl';
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import zxcvbn from 'zxcvbn';
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import Progress from '~/ui/Progress';
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import styles from './passwordStrength.css';
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const BAR_STYLE = {
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borderRadius: 1,
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height: 7,
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marginTop: '0.5em'
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};
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export default class PasswordStrength extends Component {
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static propTypes = {
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input: PropTypes.string.isRequired
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};
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state = {
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strength: null
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};
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constructor (props) {
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super(props);
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this.updateStrength = debounce(this._updateStrength, 50, { leading: true });
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}
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componentWillMount () {
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this.updateStrength(this.props.input);
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}
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componentWillReceiveProps (nextProps) {
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if (nextProps.input !== this.props.input) {
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this.updateStrength(nextProps.input);
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}
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}
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_updateStrength (input = '') {
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const strength = zxcvbn(input);
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this.setState({ strength });
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}
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render () {
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const { strength } = this.state;
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if (!strength) {
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return null;
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}
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const { score, feedback } = strength;
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// Score is between 0 and 4
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const value = score * 100 / 5 + 20;
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const color = this.getStrengthBarColor(score);
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return (
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<div className={ styles.strength }>
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<label className={ styles.label }>
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<FormattedMessage
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id='ui.passwordStrength.label'
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defaultMessage='password strength'
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/>
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</label>
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<Progress
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color={ color }
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determinate
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style={ BAR_STYLE }
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value={ value }
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/>
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<div className={ styles.feedback }>
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{ this.renderFeedback(feedback) }
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</div>
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</div>
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);
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}
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// Note that the suggestions are in english, thus it wouldn't
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// make sense to add translations to surrounding words
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renderFeedback (feedback = {}) {
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const { suggestions = [] } = feedback;
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return (
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<div>
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<p>
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{ suggestions.join(' ') }
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</p>
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</div>
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);
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}
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getStrengthBarColor (score) {
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switch (score) {
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case 4:
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case 3:
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return 'lightgreen';
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case 2:
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return 'yellow';
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case 1:
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return 'orange';
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default:
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return 'red';
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}
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}
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}
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