@aws-amplify/core
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Core category of aws-amplify
676 lines (674 loc) • 37 kB
JavaScript
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// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
import { ConsoleLogger as Logger } from './Logger';
import { StorageHelper } from './StorageHelper';
import { makeQuerablePromise } from './JS';
import { FacebookOAuth, GoogleOAuth } from './OAuthHelper';
import { jitteredExponentialRetry } from './Util';
import { Amplify } from './Amplify';
import { getId, getCredentialsForIdentity } from './AwsClients/CognitoIdentity';
import { parseAWSExports } from './parseAWSExports';
import { Hub } from './Hub';
var logger = new Logger('Credentials');
var CREDENTIALS_TTL = 50 * 60 * 1000; // 50 min, can be modified on config if required in the future
var COGNITO_IDENTITY_KEY_PREFIX = 'CognitoIdentityId-';
var AMPLIFY_SYMBOL = (typeof Symbol !== 'undefined' && typeof Symbol.for === 'function'
? Symbol.for('amplify_default')
: '@@amplify_default');
var dispatchCredentialsEvent = function (event, data, message) {
Hub.dispatch('core', { event: event, data: data, message: message }, 'Credentials', AMPLIFY_SYMBOL);
};
var CredentialsClass = /** @class */ (function () {
function CredentialsClass(config) {
this._gettingCredPromise = null;
this._refreshHandlers = {};
// Allow `Auth` to be injected for SSR, but Auth isn't a required dependency for Credentials
this.Auth = undefined;
this.configure(config);
this._refreshHandlers['google'] = GoogleOAuth.refreshGoogleToken;
this._refreshHandlers['facebook'] = FacebookOAuth.refreshFacebookToken;
}
CredentialsClass.prototype.getModuleName = function () {
return 'Credentials';
};
CredentialsClass.prototype.getCredSource = function () {
return this._credentials_source;
};
CredentialsClass.prototype.configure = function (config) {
if (!config)
return this._config || {};
this._config = Object.assign({}, this._config, config);
var refreshHandlers = this._config.refreshHandlers;
// If the developer has provided an object of refresh handlers,
// then we can merge the provided handlers with the current handlers.
if (refreshHandlers) {
this._refreshHandlers = __assign(__assign({}, this._refreshHandlers), refreshHandlers);
}
this._storage = this._config.storage;
if (!this._storage) {
this._storage = new StorageHelper().getStorage();
}
this._storageSync = Promise.resolve();
if (typeof this._storage['sync'] === 'function') {
this._storageSync = this._storage['sync']();
}
dispatchCredentialsEvent('credentials_configured', null, "Credentials has been configured successfully");
return this._config;
};
CredentialsClass.prototype.get = function () {
logger.debug('getting credentials');
return this._pickupCredentials();
};
// currently we only store the guest identity in local storage
CredentialsClass.prototype._getCognitoIdentityIdStorageKey = function (identityPoolId) {
return "".concat(COGNITO_IDENTITY_KEY_PREFIX).concat(identityPoolId);
};
CredentialsClass.prototype._pickupCredentials = function () {
logger.debug('picking up credentials');
if (!this._gettingCredPromise || !this._gettingCredPromise.isPending()) {
logger.debug('getting new cred promise');
this._gettingCredPromise = makeQuerablePromise(this._keepAlive());
}
else {
logger.debug('getting old cred promise');
}
return this._gettingCredPromise;
};
CredentialsClass.prototype._keepAlive = function () {
return __awaiter(this, void 0, void 0, function () {
var cred, _a, Auth, user_1, session, refreshToken_1, refreshRequest, err_1;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
logger.debug('checking if credentials exists and not expired');
cred = this._credentials;
if (cred && !this._isExpired(cred) && !this._isPastTTL()) {
logger.debug('credentials not changed and not expired, directly return');
return [2 /*return*/, Promise.resolve(cred)];
}
logger.debug('need to get a new credential or refresh the existing one');
_a = this.Auth, Auth = _a === void 0 ? Amplify.Auth : _a;
if (!Auth || typeof Auth.currentUserCredentials !== 'function') {
// If Auth module is not imported, do a best effort to get guest credentials
return [2 /*return*/, this._setCredentialsForGuest()];
}
if (!(!this._isExpired(cred) && this._isPastTTL())) return [3 /*break*/, 6];
logger.debug('ttl has passed but token is not yet expired');
_b.label = 1;
case 1:
_b.trys.push([1, 5, , 6]);
return [4 /*yield*/, Auth.currentUserPoolUser()];
case 2:
user_1 = _b.sent();
return [4 /*yield*/, Auth.currentSession()];
case 3:
session = _b.sent();
refreshToken_1 = session.refreshToken;
refreshRequest = new Promise(function (res, rej) {
user_1.refreshSession(refreshToken_1, function (err, data) {
return err ? rej(err) : res(data);
});
});
return [4 /*yield*/, refreshRequest];
case 4:
_b.sent(); // note that rejections will be caught and handled in the catch block.
return [3 /*break*/, 6];
case 5:
err_1 = _b.sent();
// should not throw because user might just be on guest access or is authenticated through federation
logger.debug('Error attempting to refreshing the session', err_1);
return [3 /*break*/, 6];
case 6: return [2 /*return*/, Auth.currentUserCredentials()];
}
});
});
};
CredentialsClass.prototype.refreshFederatedToken = function (federatedInfo) {
logger.debug('Getting federated credentials');
var provider = federatedInfo.provider, user = federatedInfo.user, token = federatedInfo.token, identity_id = federatedInfo.identity_id;
var expires_at = federatedInfo.expires_at;
// Make sure expires_at is in millis
expires_at =
new Date(expires_at).getFullYear() === 1970
? expires_at * 1000
: expires_at;
var that = this;
logger.debug('checking if federated jwt token expired');
if (expires_at > new Date().getTime()) {
// if not expired
logger.debug('token not expired');
return this._setCredentialsFromFederation({
provider: provider,
token: token,
user: user,
identity_id: identity_id,
expires_at: expires_at,
});
}
else {
// if refresh handler exists
if (that._refreshHandlers[provider] &&
typeof that._refreshHandlers[provider] === 'function') {
logger.debug('getting refreshed jwt token from federation provider');
return this._providerRefreshWithRetry({
refreshHandler: that._refreshHandlers[provider],
provider: provider,
user: user,
});
}
else {
logger.debug('no refresh handler for provider:', provider);
this.clear();
return Promise.reject('no refresh handler for provider');
}
}
};
CredentialsClass.prototype._providerRefreshWithRetry = function (_a) {
var _this = this;
var refreshHandler = _a.refreshHandler, provider = _a.provider, user = _a.user;
var MAX_DELAY_MS = 10 * 1000;
// refreshHandler will retry network errors, otherwise it will
// return NonRetryableError to break out of jitteredExponentialRetry
return jitteredExponentialRetry(refreshHandler, [], MAX_DELAY_MS)
.then(function (data) {
logger.debug('refresh federated token sucessfully', data);
return _this._setCredentialsFromFederation({
provider: provider,
token: data.token,
user: user,
identity_id: data.identity_id,
expires_at: data.expires_at,
});
})
.catch(function (e) {
var isNetworkError = typeof e === 'string' &&
e.toLowerCase().lastIndexOf('network error', e.length) === 0;
if (!isNetworkError) {
_this.clear();
}
logger.debug('refresh federated token failed', e);
return Promise.reject('refreshing federation token failed: ' + e);
});
};
CredentialsClass.prototype._isExpired = function (credentials) {
if (!credentials) {
logger.debug('no credentials for expiration check');
return true;
}
logger.debug('are these credentials expired?', credentials);
var ts = Date.now();
/* returns date object.
https://github.com/aws/aws-sdk-js-v3/blob/v1.0.0-beta.1/packages/types/src/credentials.ts#L26
*/
var expiration = credentials.expiration;
return expiration.getTime() <= ts;
};
CredentialsClass.prototype._isPastTTL = function () {
return this._nextCredentialsRefresh <= Date.now();
};
CredentialsClass.prototype._setCredentialsForGuest = function () {
var _a;
return __awaiter(this, void 0, void 0, function () {
var _b, identityPoolId, region, mandatorySignIn, identityPoolRegion, identityId, _c, cognitoConfig, guestCredentialsProvider, credentials;
var _this = this;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
logger.debug('setting credentials for guest');
if (!((_a = this._config) === null || _a === void 0 ? void 0 : _a.identityPoolId)) {
// If Credentials are not configured thru Auth module,
// doing best effort to check if the library was configured
this._config = Object.assign({}, this._config, parseAWSExports(this._config || {}).Auth);
}
_b = this._config, identityPoolId = _b.identityPoolId, region = _b.region, mandatorySignIn = _b.mandatorySignIn, identityPoolRegion = _b.identityPoolRegion;
if (mandatorySignIn) {
return [2 /*return*/, Promise.reject('cannot get guest credentials when mandatory signin enabled')];
}
if (!identityPoolId) {
logger.debug('No Cognito Identity pool provided for unauthenticated access');
return [2 /*return*/, Promise.reject('No Cognito Identity pool provided for unauthenticated access')];
}
if (!identityPoolRegion && !region) {
logger.debug('region is not configured for getting the credentials');
return [2 /*return*/, Promise.reject('region is not configured for getting the credentials')];
}
_c = this;
return [4 /*yield*/, this._getGuestIdentityId()];
case 1:
identityId = (_c._identityId = _d.sent());
cognitoConfig = { region: identityPoolRegion !== null && identityPoolRegion !== void 0 ? identityPoolRegion : region };
guestCredentialsProvider = function () { return __awaiter(_this, void 0, void 0, function () {
var IdentityId, Credentials;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!!identityId) return [3 /*break*/, 2];
return [4 /*yield*/, getId(cognitoConfig, {
IdentityPoolId: identityPoolId,
})];
case 1:
IdentityId = (_a.sent()).IdentityId;
this._identityId = IdentityId;
_a.label = 2;
case 2: return [4 /*yield*/, getCredentialsForIdentity(cognitoConfig, {
IdentityId: this._identityId,
})];
case 3:
Credentials = (_a.sent()).Credentials;
return [2 /*return*/, {
identityId: this._identityId,
accessKeyId: Credentials.AccessKeyId,
secretAccessKey: Credentials.SecretKey,
sessionToken: Credentials.SessionToken,
expiration: Credentials.Expiration,
}];
}
});
}); };
credentials = guestCredentialsProvider().catch(function (err) { return __awaiter(_this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw err;
});
}); });
return [2 /*return*/, this._loadCredentials(credentials, 'guest', false, null)
.then(function (res) {
return res;
})
.catch(function (e) { return __awaiter(_this, void 0, void 0, function () {
var guestCredentialsProvider_1;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!(e.name === 'ResourceNotFoundException' &&
e.message === "Identity '".concat(identityId, "' not found."))) return [3 /*break*/, 2];
logger.debug('Failed to load guest credentials');
return [4 /*yield*/, this._removeGuestIdentityId()];
case 1:
_a.sent();
guestCredentialsProvider_1 = function () { return __awaiter(_this, void 0, void 0, function () {
var IdentityId, Credentials;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, getId(cognitoConfig, {
IdentityPoolId: identityPoolId,
})];
case 1:
IdentityId = (_a.sent()).IdentityId;
this._identityId = IdentityId;
return [4 /*yield*/, getCredentialsForIdentity(cognitoConfig, {
IdentityId: IdentityId,
})];
case 2:
Credentials = (_a.sent()).Credentials;
return [2 /*return*/, {
identityId: IdentityId,
accessKeyId: Credentials.AccessKeyId,
secretAccessKey: Credentials.SecretKey,
sessionToken: Credentials.SessionToken,
expiration: Credentials.Expiration,
}];
}
});
}); };
credentials = guestCredentialsProvider_1().catch(function (err) { return __awaiter(_this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw err;
});
}); });
return [2 /*return*/, this._loadCredentials(credentials, 'guest', false, null)];
case 2: return [2 /*return*/, e];
}
});
}); })];
}
});
});
};
CredentialsClass.prototype._setCredentialsFromFederation = function (params) {
var _this = this;
var provider = params.provider, token = params.token;
var identity_id = params.identity_id;
var domains = {
google: 'accounts.google.com',
facebook: 'graph.facebook.com',
amazon: 'www.amazon.com',
developer: 'cognito-identity.amazonaws.com',
};
// Use custom provider url instead of the predefined ones
var domain = domains[provider] || provider;
if (!domain) {
return Promise.reject('You must specify a federated provider');
}
var logins = {};
logins[domain] = token;
var _a = this._config, identityPoolId = _a.identityPoolId, region = _a.region, identityPoolRegion = _a.identityPoolRegion;
if (!identityPoolId) {
logger.debug('No Cognito Federated Identity pool provided');
return Promise.reject('No Cognito Federated Identity pool provided');
}
if (!identityPoolRegion && !region) {
logger.debug('region is not configured for getting the credentials');
return Promise.reject('region is not configured for getting the credentials');
}
var cognitoConfig = { region: identityPoolRegion !== null && identityPoolRegion !== void 0 ? identityPoolRegion : region };
var authenticatedCredentialsProvider = function () { return __awaiter(_this, void 0, void 0, function () {
var IdentityId, Credentials;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!!identity_id) return [3 /*break*/, 2];
return [4 /*yield*/, getId(cognitoConfig, {
IdentityPoolId: identityPoolId,
Logins: logins,
})];
case 1:
IdentityId = (_a.sent()).IdentityId;
identity_id = IdentityId;
_a.label = 2;
case 2: return [4 /*yield*/, getCredentialsForIdentity(cognitoConfig, {
IdentityId: identity_id,
Logins: logins,
})];
case 3:
Credentials = (_a.sent()).Credentials;
return [2 /*return*/, {
identityId: identity_id,
accessKeyId: Credentials.AccessKeyId,
secretAccessKey: Credentials.SecretKey,
sessionToken: Credentials.SessionToken,
expiration: Credentials.Expiration,
}];
}
});
}); };
var credentials = authenticatedCredentialsProvider().catch(function (err) { return __awaiter(_this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw err;
});
}); });
return this._loadCredentials(credentials, 'federated', true, params);
};
CredentialsClass.prototype._setCredentialsFromSession = function (session) {
var _this = this;
logger.debug('set credentials from session');
var idToken = session.getIdToken().getJwtToken();
var _a = this._config, region = _a.region, userPoolId = _a.userPoolId, identityPoolId = _a.identityPoolId, identityPoolRegion = _a.identityPoolRegion;
if (!identityPoolId) {
logger.debug('No Cognito Federated Identity pool provided');
return Promise.reject('No Cognito Federated Identity pool provided');
}
if (!identityPoolRegion && !region) {
logger.debug('region is not configured for getting the credentials');
return Promise.reject('region is not configured for getting the credentials');
}
var key = 'cognito-idp.' + region + '.amazonaws.com/' + userPoolId;
var logins = {};
logins[key] = idToken;
var cognitoConfig = { region: identityPoolRegion !== null && identityPoolRegion !== void 0 ? identityPoolRegion : region };
/*
Retreiving identityId with GetIdCommand to mimic the behavior in the following code in aws-sdk-v3:
https://git.io/JeDxU
Note: Retreive identityId from CredentialsProvider once aws-sdk-js v3 supports this.
*/
var credentialsProvider = function () { return __awaiter(_this, void 0, void 0, function () {
var guestIdentityId, generatedOrRetrievedIdentityId, IdentityId, _a, _b, AccessKeyId, Expiration, SecretKey, SessionToken, primaryIdentityId;
return __generator(this, function (_c) {
switch (_c.label) {
case 0: return [4 /*yield*/, this._getGuestIdentityId()];
case 1:
guestIdentityId = _c.sent();
if (!!guestIdentityId) return [3 /*break*/, 3];
return [4 /*yield*/, getId(cognitoConfig, {
IdentityPoolId: identityPoolId,
Logins: logins,
})];
case 2:
IdentityId = (_c.sent()).IdentityId;
generatedOrRetrievedIdentityId = IdentityId;
_c.label = 3;
case 3: return [4 /*yield*/, getCredentialsForIdentity(cognitoConfig, {
IdentityId: guestIdentityId || generatedOrRetrievedIdentityId,
Logins: logins,
})];
case 4:
_a = _c.sent(), _b = _a.Credentials, AccessKeyId = _b.AccessKeyId, Expiration = _b.Expiration, SecretKey = _b.SecretKey, SessionToken = _b.SessionToken, primaryIdentityId = _a.IdentityId;
this._identityId = primaryIdentityId;
if (!guestIdentityId) return [3 /*break*/, 6];
// if guestIdentity is found and used by GetCredentialsForIdentity
// it will be linked to the logins provided, and disqualified as an unauth identity
logger.debug("The guest identity ".concat(guestIdentityId, " has been successfully linked to the logins"));
if (guestIdentityId === primaryIdentityId) {
logger.debug("The guest identity ".concat(guestIdentityId, " has become the primary identity"));
}
// remove it from local storage to avoid being used as a guest Identity by _setCredentialsForGuest
return [4 /*yield*/, this._removeGuestIdentityId()];
case 5:
// remove it from local storage to avoid being used as a guest Identity by _setCredentialsForGuest
_c.sent();
_c.label = 6;
case 6:
// https://github.com/aws/aws-sdk-js-v3/blob/main/packages/credential-provider-cognito-identity/src/fromCognitoIdentity.ts#L40
return [2 /*return*/, {
accessKeyId: AccessKeyId,
secretAccessKey: SecretKey,
sessionToken: SessionToken,
expiration: Expiration,
identityId: primaryIdentityId,
}];
}
});
}); };
var credentials = credentialsProvider().catch(function (err) { return __awaiter(_this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw err;
});
}); });
return this._loadCredentials(credentials, 'userPool', true, null);
};
CredentialsClass.prototype._loadCredentials = function (credentials, source, authenticated, info) {
var _this = this;
var that = this;
return new Promise(function (res, rej) {
credentials
.then(function (credentials) { return __awaiter(_this, void 0, void 0, function () {
var user, provider, token, expires_at, identity_id;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
logger.debug('Load credentials successfully', credentials);
if (this._identityId && !credentials.identityId) {
credentials['identityId'] = this._identityId;
}
that._credentials = credentials;
that._credentials.authenticated = authenticated;
that._credentials_source = source;
that._nextCredentialsRefresh = new Date().getTime() + CREDENTIALS_TTL;
if (source === 'federated') {
user = Object.assign({ id: this._credentials.identityId }, info.user);
provider = info.provider, token = info.token, expires_at = info.expires_at, identity_id = info.identity_id;
try {
this._storage.setItem('aws-amplify-federatedInfo', JSON.stringify({
provider: provider,
token: token,
user: user,
expires_at: expires_at,
identity_id: identity_id,
}));
}
catch (e) {
logger.debug('Failed to put federated info into auth storage', e);
}
}
if (!(source === 'guest')) return [3 /*break*/, 2];
return [4 /*yield*/, this._setGuestIdentityId(credentials.identityId)];
case 1:
_a.sent();
_a.label = 2;
case 2:
res(that._credentials);
return [2 /*return*/];
}
});
}); })
.catch(function (err) {
if (err) {
logger.debug('Failed to load credentials', credentials);
logger.debug('Error loading credentials', err);
rej(err);
return;
}
});
});
};
CredentialsClass.prototype.set = function (params, source) {
if (source === 'session') {
return this._setCredentialsFromSession(params);
}
else if (source === 'federation') {
return this._setCredentialsFromFederation(params);
}
else if (source === 'guest') {
return this._setCredentialsForGuest();
}
else {
logger.debug('no source specified for setting credentials');
return Promise.reject('invalid source');
}
};
CredentialsClass.prototype.clear = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
this._credentials = null;
this._credentials_source = null;
logger.debug('removing aws-amplify-federatedInfo from storage');
this._storage.removeItem('aws-amplify-federatedInfo');
return [2 /*return*/];
});
});
};
/* operations on local stored guest identity */
CredentialsClass.prototype._getGuestIdentityId = function () {
return __awaiter(this, void 0, void 0, function () {
var identityPoolId, e_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
identityPoolId = this._config.identityPoolId;
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, this._storageSync];
case 2:
_a.sent();
return [2 /*return*/, this._storage.getItem(this._getCognitoIdentityIdStorageKey(identityPoolId))];
case 3:
e_1 = _a.sent();
logger.debug('Failed to get the cached guest identityId', e_1);
return [3 /*break*/, 4];
case 4: return [2 /*return*/];
}
});
});
};
CredentialsClass.prototype._setGuestIdentityId = function (identityId) {
return __awaiter(this, void 0, void 0, function () {
var identityPoolId, e_2;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
identityPoolId = this._config.identityPoolId;
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, this._storageSync];
case 2:
_a.sent();
this._storage.setItem(this._getCognitoIdentityIdStorageKey(identityPoolId), identityId);
return [3 /*break*/, 4];
case 3:
e_2 = _a.sent();
logger.debug('Failed to cache guest identityId', e_2);
return [3 /*break*/, 4];
case 4: return [2 /*return*/];
}
});
});
};
CredentialsClass.prototype._removeGuestIdentityId = function () {
return __awaiter(this, void 0, void 0, function () {
var identityPoolId;
return __generator(this, function (_a) {
identityPoolId = this._config.identityPoolId;
logger.debug("removing ".concat(this._getCognitoIdentityIdStorageKey(identityPoolId), " from storage"));
this._storage.removeItem(this._getCognitoIdentityIdStorageKey(identityPoolId));
return [2 /*return*/];
});
});
};
/**
* Compact version of credentials
* @param {Object} credentials
* @return {Object} - Credentials
*/
CredentialsClass.prototype.shear = function (credentials) {
return {
accessKeyId: credentials.accessKeyId,
sessionToken: credentials.sessionToken,
secretAccessKey: credentials.secretAccessKey,
identityId: credentials.identityId,
authenticated: credentials.authenticated,
};
};
return CredentialsClass;
}());
export { CredentialsClass };
export var Credentials = new CredentialsClass(null);
Amplify.register(Credentials);