casdoor-app/ScanQRCode.js

93 lines
3.3 KiB
JavaScript

// Copyright 2023 The Casdoor Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import React, {useEffect, useState} from "react";
import {Dimensions, Text, View} from "react-native";
import {IconButton, Modal, Portal} from "react-native-paper";
import {BarCodeScanner} from "expo-barcode-scanner";
import PropTypes from "prop-types";
const ScanQRCode = ({onClose, showScanner, onAdd}) => {
ScanQRCode.propTypes = {
onClose: PropTypes.func.isRequired,
onAdd: PropTypes.func.isRequired,
showScanner: PropTypes.bool.isRequired,
};
const [hasPermission, setHasPermission] = useState(null);
useEffect(() => {
(async() => {
const {status} = await BarCodeScanner.requestPermissionsAsync();
setHasPermission(status === "granted");
})();
}, []);
const closeOptions = () => {
onClose();
};
const handleBarCodeScanned = ({type, data}) => {
// type org.iso.QRCode
// data otpauth://totp/casdoor:built-in/admin?algorithm=SHA1&digits=6&issuer=casdoor&period=30&secret=DL5XI33M772GSGU73GJPCOIBNJE7TG3J
// console.log(`Bar code with type ${type} and data ${data} has been scanned!`);
const description = data.match(/otpauth:\/\/totp\/([^?]+)/); // description casdoor:built-in/admin
const secretCode = data.match(/secret=([^&]+)/); // secretCode II5UO7HIA3SPVXAB6KPAIXZ33AQP7C3R
const icon = data.match(/issuer=([^&]+)/);
if (description && secretCode) {
onAdd({description: description[1], secretCode: secretCode[1], icon: `https://cdn.casbin.org/img/social_${icon && icon[1].toLowerCase()}.png`});
}
closeOptions();
};
const {width, height} = Dimensions.get("window");
const offsetX = width * 0.5;
const offsetY = height * 0.5;
return (
<View style={{marginTop: "50%", flex: 1}} >
<Portal>
<Modal
visible={showScanner}
onDismiss={closeOptions}
contentContainerStyle={{
backgroundColor: "white",
width: width,
height: height,
position: "absolute",
top: "50%",
left: "50%",
transform: [{translateX: -offsetX}, {translateY: -offsetY}],
}}
>
{hasPermission === null ? (
<Text style={{marginLeft: "20%", marginRight: "20%"}}>Requesting for camera permission</Text>
) : hasPermission === false ? (
<Text style={{marginLeft: "20%", marginRight: "20%"}}>No access to camera</Text>
) : (
<BarCodeScanner
onBarCodeScanned={handleBarCodeScanned}
style={{flex: 1}}
/>
)}
<IconButton icon={"close"} size={40} onPress={onClose} style={{position: "absolute", top: 30, right: 5}} />
</Modal>
</Portal>
</View>
);
};
export default ScanQRCode;