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index.js
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index.js
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import React, { Component } from 'react';
import MessageWebView from './MessageWebView';
import PropTypes from 'prop-types';
import { Platform, Linking } from 'react-native';
const RECAPTCHA_SUB_STR = 'https://www.google.com/recaptcha/api2/anchor?';
const RECAPTCHA_SUB_STR_FRAME = 'https://www.google.com/recaptcha/api2/bframe';
export const type = Object.freeze({ invisible: 1, normal: 2 });
const getInvisibleRecaptchaContent = (siteKey, action, onReady) => {
const webForm =
'<!DOCTYPE html><html><head> ' +
'<style> .text-xs-center { text-align: center; } .g-recaptcha { display: inline-block; } </style> ' +
'<script src="https://www.google.com/recaptcha/api.js?render=' +
siteKey +
'"></script> ' +
'<script type="text/javascript"> ' +
"function getToken(){return new Promise(function(resolve){grecaptcha.execute('" +
siteKey +
"',{action:'" +
action +
"'}).then(function(token){resolve(token)})})};" +
'grecaptcha.ready(function() { ' +
`(${String(onReady)})(); ` +
'}); ' +
'document.addEventListener("message",function(e){if(typeof e.data!=="string")return;if(e.data.indexOf("get token")!==-1)getToken().then(function(res){window.postMessage(res)})});' +
'</script>' +
'</head></html>';
return webForm;
};
const getNormalRecaptchaContent = config => {
const webForm =
'<!DOCTYPE html><html><head> ' +
'<style> .text-xs-center { text-align: center; } .g-recaptcha { display: inline-block; margin-right: 40px; float: right;} </style> ' +
'<script src="https://www.gstatic.com/firebasejs/5.1.0/firebase-app.js"></script> ' +
'<script src="https://www.gstatic.com/firebasejs/5.1.0/firebase-auth.js"></script> ' +
'<script type="text/javascript"> firebase.initializeApp(' +
JSON.stringify(config) +
'); ' +
'</script><script src="https://www.google.com/recaptcha/api.js"></script> ' +
'</head> ' +
'<body><div id="recaptcha-cont" class="g-recaptcha"></div>' +
'<script> ' +
'function onloadCallback() { ' +
'window.recaptchaVerifier = new firebase.auth.RecaptchaVerifier("recaptcha-cont", ' +
'{size: "normal", callback: function(response) { window.postMessage(response); }}); ' +
'window.recaptchaVerifier.render(); ' +
'} ' +
'</script>' +
'<script src="https://www.google.com/recaptcha/api.js?onload=onloadCallback&render=explicit"></script>' +
'</body> </html>';
return webForm;
};
export default class ReCaptcha extends Component {
static propTypes = {
onMessage: PropTypes.func,
containerStyle: PropTypes.any,
siteKey: PropTypes.string.isRequired,
url: PropTypes.string.isRequired,
action: PropTypes.string,
onReady: PropTypes.func,
onExecute: PropTypes.func,
customWebRecaptcha: PropTypes.func,
reCaptchaType: PropTypes.oneOf(Object.values(type)).isRequired,
};
static defaultProps = {
onReady: () => {},
onExecute: () => {},
action: '',
containerStyle: {
width: '100%',
height: '100%',
zIndex: -1,
position: 'relative',
marginBottom: 20,
},
reCaptchaType: type.invisible,
};
onShouldStartLoadWithRequest = event => {
const { config, url } = this.props;
if (
event.url === url ||
event.url.indexOf(RECAPTCHA_SUB_STR) !== -1 ||
(!!config && event.url.indexOf(config.authDomain) !== -1) ||
event.url.indexOf(RECAPTCHA_SUB_STR_FRAME) !== -1
) {
return true;
}
Linking.canOpenURL(event.url).then(supported => {
if (supported) {
return Linking.openURL(event.url);
}
});
return false;
};
onNavigationStateChange = event => {
if (Platform.OS === 'android') {
const { url } = this.props;
if (
url !== event.url &&
event.url.indexOf(RECAPTCHA_SUB_STR) === -1 &&
!!event.canGoBack &&
!event.loading
) {
Linking.canOpenURL(event.url).then(supported => {
if (supported) {
return Linking.openUrl(event.url);
}
});
}
if (!!event.canGoBack) {
this.webview.getWebViewHandle().goBack();
}
}
};
getToken = () => {
this.webview.getToken();
};
render() {
const {
containerStyle,
siteKey,
action,
onReady,
onExecute,
config,
reCaptchaType,
url,
} = this.props;
return (
<MessageWebView
ref={ref => {
this.webview = ref;
}}
scalesPageToFit={true}
mixedContentMode={'always'}
containerStyle={containerStyle}
onMessage={message => onExecute(message)}
source={{
html:
reCaptchaType == type.invisible
? getInvisibleRecaptchaContent(siteKey, action, onReady)
: getNormalRecaptchaContent(config),
baseUrl: url,
}}
onShouldStartLoadWithRequest={this.onShouldStartLoadWithRequest}
onNavigationStateChange={this.onNavigationStateChange}
/>
);
}
}