verdnatura-chat/app/utils/sslPinning.js

import { Alert, NativeModules, Platform } from 'react-native';
import DocumentPicker from 'react-native-document-picker';
import * as FileSystem from 'expo-file-system';

import UserPreferences from '../lib/userPreferences';
import I18n from '../i18n';
import { extractHostname } from './server';

const { SSLPinning } = NativeModules;

const RCSSLPinning = Platform.select({
	ios: {
		pickCertificate: () =>
			new Promise(async (resolve, reject) => {
				try {
					const res = await DocumentPicker.pick({
						type: ['com.rsa.pkcs-12']
					});
					const { uri, name } = res;
					Alert.prompt(
						I18n.t('Certificate_password'),
						I18n.t('Whats_the_password_for_your_certificate'),
						[
							{
								text: 'OK',
								onPress: async password => {
									try {
										const certificatePath = `${FileSystem.documentDirectory}/${name}`;

										await FileSystem.copyAsync({ from: uri, to: certificatePath });

										const certificate = {
											path: certificatePath.replace('file://', ''), // file:// isn't allowed by obj-C
											password
										};

										await UserPreferences.setMapAsync(name, certificate);

										resolve(name);
									} catch (e) {
										reject(e);
									}
								}
							}
						],
						'secure-text'
					);
				} catch (e) {
					reject(e);
				}
			}),
		setCertificate: async (alias, server) => {
			if (alias) {
				const certificate = await UserPreferences.getMapAsync(alias);
				await UserPreferences.setMapAsync(extractHostname(server), certificate);
			}
		}
	},
	android: {
		pickCertificate: () => SSLPinning?.pickCertificate(),
		setCertificate: alias => SSLPinning?.setCertificate(alias)
	}
});

export default RCSSLPinning;