@b8safe/react-native-safe/lib/module/DeviceCheck/module.js

Package for native integration of B8Safe SDK

"use strict";

import { NativeModules, Platform } from 'react-native';
import { sha256 } from 'react-native-sha256';

// const LINKING_ERROR =
//   `The package 'react-native-b8safe' doesn't seem to be linked. Make sure: \n\n` +
//   Platform.select({ ios: "- You have run 'pod install'\n", default: '' }) +
//   '- You rebuilt the app after installing the package\n' +
//   '- You are not using Expo Go\n';

const DeviceCheck = NativeModules.DeviceCheck !== undefined ? NativeModules.DeviceCheck : null;
const PlayIntegrity = NativeModules.PlayIntegrity !== undefined ? NativeModules.PlayIntegrity : null;
function generateRandomString(length) {
  const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  let result = '';
  const charactersLength = characters.length;
  for (let i = 0; i < length; i++) result += characters.charAt(Math.floor(Math.random() * charactersLength));
  return result;
}
export const getToken = async (payload, type) => {
  try {
    type = type ?? 'standard';
    if (Platform.OS === 'android') {
      const isAvailable = await PlayIntegrity?.isPlayIntegrityAvailable();
      if (isAvailable) {
        if (type === 'classic') {
          const nonce = await sha256(JSON.stringify(payload ?? {}));
          const base64Nonce = new Buffer(nonce).toString('base64');
          return [await PlayIntegrity?.requestIntegrityToken(base64Nonce, null), nonce].join('|');
        } else {
          try {
            const isPrepared = await PlayIntegrity?.isStandardIntegrityTokenProviderPrepared();
            if (isPrepared) {
              const hash = generateRandomString(64);
              return [await PlayIntegrity?.requestStandardIntegrityToken(hash), hash].join('|');
            }
          } catch (e) {
            console.error('Erro ao obter o token de integridade padrão:', e);
          }
        }
      }
      return null;
    } else if (DeviceCheck !== null) {
      return await DeviceCheck.getDeviceToken();
    }
  } catch (e) {
    console.error('Erro ao obter o token de integridade:', e);
  }
  return null;
};
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