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Extract callbacks to a new module

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This commit is contained in:
J. Ryan Stinnett 2019-12-05 15:20:30 +00:00
parent 9f1c2cd3e1
commit 7446bcdedb
2 changed files with 67 additions and 44 deletions
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62
src/CrossSigningManager.js Normal file
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@ -0,0 +1,62 @@
/*
Copyright 2019 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Modal from './Modal';
import sdk from './index';
import { deriveKey } from 'matrix-js-sdk/lib/crypto/key_passphrase';
import { decodeRecoveryKey } from 'matrix-js-sdk/lib/crypto/recoverykey';
// This stores the cross-signing private keys in memory for the JS SDK. They are
// also persisted to Secure Secret Storage in account data by the JS SDK when
// created.
const crossSigningKeys = {};
// XXX: On desktop platforms, we plan to store only the SSSS default key in a
// secure enclave, while the cross-signing private keys will still be retrieved
// from SSSS, so it's unclear that we actually need these cross-signing
// application callbacks for Riot. Should the JS SDK default to in-memory
// storage of these itself?
export const getCrossSigningKey = k => crossSigningKeys[k];
export const saveCrossSigningKeys = newKeys => Object.assign(crossSigningKeys, newKeys);
// XXX: This flow should maybe be reworked to allow retries in case of typos,
// etc.
export const getSecretStorageKey = async keyInfos => {
const keyInfoEntries = Object.entries(keyInfos);
if (keyInfoEntries.length > 1) {
throw new Error("Multiple storage key requests not implemented");
}
const [name, info] = keyInfoEntries[0];
const AccessSecretStorageDialog =
sdk.getComponent("dialogs.secretstorage.AccessSecretStorageDialog");
const { finished } = Modal.createTrackedDialog("Access Secret Storage dialog", "",
AccessSecretStorageDialog, {
keyInfo: info,
},
);
const [input] = await finished;
if (!input) {
throw new Error("Secret storage access canceled");
}
let key;
const { passphrase } = info;
if (passphrase) {
key = await deriveKey(input, passphrase.salt, passphrase.iterations);
} else {
key = decodeRecoveryKey(input);
}
return [name, key];
};

49
src/MatrixClientPeg.js
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@ -1,7 +1,8 @@
/*
Copyright 2015, 2016 OpenMarket Ltd
Copyright 2017 Vector Creations Ltd.
Copyright 2017 New Vector Ltd
Copyright 2017, 2018, 2019 New Vector Ltd
Copyright 2019 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@ -30,8 +31,7 @@ import {verificationMethods} from 'matrix-js-sdk/lib/crypto';
import MatrixClientBackedSettingsHandler from "./settings/handlers/MatrixClientBackedSettingsHandler";
import * as StorageManager from './utils/StorageManager';
import IdentityAuthClient from './IdentityAuthClient';
import { deriveKey } from 'matrix-js-sdk/lib/crypto/key_passphrase';
import { decodeRecoveryKey } from 'matrix-js-sdk/lib/crypto/recoverykey';
import * as CrossSigningManager from './CrossSigningManager';
interface MatrixClientCreds {
homeserverUrl: string,
@ -222,48 +222,9 @@ class MatrixClientPeg {
identityServer: new IdentityAuthClient(),
};
opts.cryptoCallbacks = {};
if (SettingsStore.isFeatureEnabled("feature_cross_signing")) {
// This stores the cross-signing private keys in memory for the JS SDK. They
// are also persisted to Secure Secret Storage in account data by
// the JS SDK when created.
const keys = {};
opts.cryptoCallbacks = {
// XXX: This flow should maybe be reworked to allow retries in
// case of typos, etc.
getSecretStorageKey: async keyInfos => {
const keyInfoEntries = Object.entries(keyInfos);
if (keyInfoEntries.length > 1) {
throw new Error("Multiple storage key requests not implemented");
}
const [name, info] = keyInfoEntries[0];
const AccessSecretStorageDialog =
sdk.getComponent("dialogs.secretstorage.AccessSecretStorageDialog");
const { finished } = Modal.createTrackedDialog("Access Secret Storage dialog", "",
AccessSecretStorageDialog, {
keyInfo: info,
},
);
const [input] = await finished;
if (!input) {
throw new Error("Secret storage access canceled");
}
let key;
const { passphrase } = info;
if (passphrase) {
key = await deriveKey(input, passphrase.salt, passphrase.iterations);
} else {
key = decodeRecoveryKey(input);
}
return [name, key];
},
// XXX: On desktop platforms, we plan to store only the SSSS default
// key in a secure enclave, while the cross-signing private keys
// will still be retrieved from SSSS, so it's unclear that we
// actually need these cross-signing application callbacks for Riot.
// Should the JS SDK default to in-memory storage of these itself?
getCrossSigningKey: k => keys[k],
saveCrossSigningKeys: newKeys => Object.assign(keys, newKeys),
};
Object.assign(opts.cryptoCallbacks, CrossSigningManager);
}
this.matrixClient = createMatrixClient(opts);