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13 | import { ConsoleLogger as Logger } from '../Logger';
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14 | import { browserOrNode } from '../JS';
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15 | import { NonRetryableError } from '../Util';
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16 |
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17 | const logger = new Logger('CognitoCredentials');
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18 |
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19 | const waitForInit = new Promise((res, rej) => {
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20 | if (!browserOrNode().isBrowser) {
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21 | logger.debug('not in the browser, directly resolved');
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22 | return res();
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23 | }
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24 | const fb = window['FB'];
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25 | if (fb) {
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26 | logger.debug('FB SDK already loaded');
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27 | return res();
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28 | } else {
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29 | setTimeout(() => {
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30 | return res();
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31 | }, 2000);
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32 | }
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33 | });
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34 |
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35 | export class FacebookOAuth {
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36 | public initialized = false;
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37 |
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38 | constructor() {
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39 | this.refreshFacebookToken = this.refreshFacebookToken.bind(this);
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40 | this._refreshFacebookTokenImpl = this._refreshFacebookTokenImpl.bind(this);
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41 | }
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42 |
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43 | public async refreshFacebookToken() {
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44 | if (!this.initialized) {
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45 | logger.debug('need to wait for the Facebook SDK loaded');
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46 | await waitForInit;
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47 | this.initialized = true;
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48 | logger.debug('finish waiting');
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49 | }
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50 |
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51 | return this._refreshFacebookTokenImpl();
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52 | }
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53 |
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54 | private _refreshFacebookTokenImpl() {
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55 | let fb = null;
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56 | if (browserOrNode().isBrowser) fb = window['FB'];
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57 | if (!fb) {
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58 | const errorMessage = 'no fb sdk available';
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59 | logger.debug(errorMessage);
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60 | return Promise.reject(new NonRetryableError(errorMessage));
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61 | }
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62 |
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63 | return new Promise((res, rej) => {
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64 | fb.getLoginStatus(
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65 | fbResponse => {
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66 | if (!fbResponse || !fbResponse.authResponse) {
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67 | const errorMessage =
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68 | 'no response from facebook when refreshing the jwt token';
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69 | logger.debug(errorMessage);
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70 |
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71 |
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72 | rej(new NonRetryableError(errorMessage));
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73 | } else {
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74 | const response = fbResponse.authResponse;
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75 | const { accessToken, expiresIn } = response;
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76 | const date = new Date();
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77 | const expires_at = expiresIn * 1000 + date.getTime();
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78 | if (!accessToken) {
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79 | const errorMessage = 'the jwtToken is undefined';
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80 | logger.debug(errorMessage);
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81 | rej(new NonRetryableError(errorMessage));
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82 | }
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83 | res({
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84 | token: accessToken,
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85 | expires_at,
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86 | });
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87 | }
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88 | },
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89 | { scope: 'public_profile,email' }
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90 | );
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91 | });
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92 | }
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93 | }
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94 |
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95 |
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96 |
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97 |
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98 | export default FacebookOAuth;
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