Rename ssss cache functions to be more general

spec/unit/crypto/backup.spec.js

@@ -23,15 +23,10 @@ import {MatrixEvent} from "../../../src/models/event";
 import * as algorithms from "../../../src/crypto/algorithms";
 import {WebStorageSessionStore} from "../../../src/store/session/webstorage";
 import {MemoryCryptoStore} from "../../../src/crypto/store/memory-crypto-store";
-import {
-    IndexedDBCryptoStore,
-} from '../../../src/crypto/store/indexeddb-crypto-store';
 import {MockStorageApi} from "../../MockStorageApi";
 import * as testUtils from "../../test-utils";
 import {OlmDevice} from "../../../src/crypto/OlmDevice";
 import {Crypto} from "../../../src/crypto";
-import 'fake-indexeddb/auto';
-import 'jest-localstorage-mock';
 
 const Olm = global.Olm;
 
@@ -84,13 +79,6 @@ const BACKUP_INFO = {
     },
 };
 
-const testKey = new Uint8Array([
-    0xda, 0x5a, 0x27, 0x60, 0xe3, 0x3a, 0xc5, 0x82,
-    0x9d, 0x12, 0xc3, 0xbe, 0xe8, 0xaa, 0xc2, 0xef,
-    0xae, 0xb1, 0x05, 0xc1, 0xe7, 0x62, 0x78, 0xa6,
-    0xd7, 0x1f, 0xf8, 0x2c, 0x51, 0x85, 0xf0, 0x1d,
-]);
-
 const keys = {};
 
 function getCrossSigningKey(type) {
@@ -555,45 +543,3 @@ describe("MegolmBackup", function() {
         });
     });
 });
-
-describe.each([
-    ["IndexedDBCryptoStore",
-     () => new IndexedDBCryptoStore(global.indexedDB, "tests")],
-    ["LocalStorageCryptoStore",
-     () => new IndexedDBCryptoStore(undefined, "tests")],
-    ["MemoryCryptoStore", () => {
-        const store = new IndexedDBCryptoStore(undefined, "tests");
-        store._backend = new MemoryCryptoStore();
-        store._backendPromise = Promise.resolve(store._backend);
-        return store;
-    }],
-])("Crypto store backup key cache functions [%s]", function(name, dbFactory) {
-    let store;
-
-    beforeAll(async () => {
-        store = dbFactory();
-        await store.startup();
-    });
-
-    it("Stores and retrieves a backup key", async () => {
-        expect(store._backend).not.toBeNull();
-
-        await store.doTxn(
-            'readwrite',
-            [IndexedDBCryptoStore.STORE_ACCOUNT],
-            (txn) => {
-                store.storeBackupKey(txn, "m.megolm_backup.v1", testKey);
-            },
-        );
-        const result = await new Promise((resolve) => {
-            store.doTxn(
-                'readonly',
-                [IndexedDBCryptoStore.STORE_ACCOUNT],
-                (txn) => {
-                    store.getBackupKey(txn, resolve, "m.megolm_backup.v1");
-                },
-            );
-        });
-        expect(result).toEqual(testKey);
-    });
-});

src/crypto/CrossSigning.js

@@ -585,7 +585,7 @@ export function createCryptoStoreCacheCallbacks(store) {
                     'readonly',
                     [IndexedDBCryptoStore.STORE_ACCOUNT],
                     (txn) => {
-                        store.getCrossSigningPrivateKey(txn, resolve, type);
+                        store.getSecretStorePrivateKey(txn, resolve, type);
                     },
                 );
             });
@@ -595,7 +595,7 @@ export function createCryptoStoreCacheCallbacks(store) {
                 'readwrite',
                 [IndexedDBCryptoStore.STORE_ACCOUNT],
                 (txn) => {
-                    store.storeCrossSigningPrivateKey(txn, type, key);
+                    store.storeSecretStorePrivateKey(txn, type, key);
                 },
             );
         },

src/crypto/store/indexeddb-crypto-store-backend.js

@@ -341,7 +341,7 @@ export class Backend {
         };
     }
 
-    getCrossSigningPrivateKey(txn, func, type) {
+    getSecretStorePrivateKey(txn, func, type) {
         const objectStore = txn.objectStore("account");
         const getReq = objectStore.get(`ssss_cache:${type}`);
         getReq.onsuccess = function() {
@@ -358,28 +358,11 @@ export class Backend {
         objectStore.put(keys, "crossSigningKeys");
     }
 
-    storeCrossSigningPrivateKey(txn, type, key) {
+    storeSecretStorePrivateKey(txn, type, key) {
         const objectStore = txn.objectStore("account");
         objectStore.put(key, `ssss_cache:${type}`);
     }
 
-    getBackupKey(txn, func, type) {
-        const objectStore = txn.objectStore("account");
-        const getReq = objectStore.get(`backup_key_cache:${type}`);
-        getReq.onsuccess = function() {
-            try {
-                func(getReq.result || null);
-            } catch (e) {
-                abortWithException(txn, e);
-            }
-        };
-    }
-
-    storeBackupKey(txn, type, key) {
-        const objectStore = txn.objectStore("account");
-        objectStore.put(key, `backup_key_cache:${type}`);
-    }
-
     // Olm Sessions
 
     countEndToEndSessions(txn, func) {

src/crypto/store/indexeddb-crypto-store.js

@@ -313,8 +313,8 @@ export class IndexedDBCryptoStore {
      * @param {function(string)} func Called with the private key
      * @param {string} type A key type
      */
-    getCrossSigningPrivateKey(txn, func, type) {
-        this._backend.getCrossSigningPrivateKey(txn, func, type);
+    getSecretStorePrivateKey(txn, func, type) {
+        this._backend.getSecretStorePrivateKey(txn, func, type);
     }
 
     /**
@@ -334,28 +334,8 @@ export class IndexedDBCryptoStore {
      * @param {string} type The type of cross-signing private key to store
      * @param {string} key keys object as getCrossSigningKeys()
      */
-    storeCrossSigningPrivateKey(txn, type, key) {
-        this._backend.storeCrossSigningPrivateKey(txn, type, key);
-    }
-
-    /**
-     * Retrieve session backup keys from the store
-     * @param {*} txn An active transaction. See doTxn().
-     * @param {function(Uint8Array)} func Called with the private key
-     * @param {string} type A key type
-     */
-    getBackupKey(txn, func, type) {
-        this._backend.getBackupKey(txn, func, type);
-    }
-
-    /**
-     *
-     * @param {*} txn
-     * @param {string} type A key type
-     * @param {Uint8Array} key A private key
-     */
-    storeBackupKey(txn, type, key) {
-        this._backend.storeBackupKey(txn, type, key);
+    storeSecretStorePrivateKey(txn, type, key) {
+        this._backend.storeSecretStorePrivateKey(txn, type, key);
     }
 
     // Olm sessions

src/crypto/store/localStorage-crypto-store.js

@@ -367,7 +367,7 @@ export class LocalStorageCryptoStore extends MemoryCryptoStore {
         func(keys);
     }
 
-    getCrossSigningPrivateKey(txn, func, type) {
+    getSecretStorePrivateKey(txn, func, type) {
         const key = getJsonItem(this.store, E2E_PREFIX + `ssss_cache.${type}`);
         func(key ? Uint8Array.from(key) : key);
     }
@@ -378,23 +378,12 @@ export class LocalStorageCryptoStore extends MemoryCryptoStore {
         );
     }
 
-    storeCrossSigningPrivateKey(txn, type, key) {
+    storeSecretStorePrivateKey(txn, type, key) {
         setJsonItem(
             this.store, E2E_PREFIX + `ssss_cache.${type}`, Array.from(key),
         );
     }
 
-    getBackupKey(txn, func, type) {
-        const key = getJsonItem(this.store, `backup_key_cache.${type}`);
-        func(key ? Uint8Array.from(key) : key);
-    }
-
-    storeBackupKey(txn, type, key) {
-        setJsonItem(
-            this.store, `backup_key_cache.${type}`, Array.from(key),
-        );
-    }
-
     doTxn(mode, stores, func) {
         return Promise.resolve(func(null));
     }

src/crypto/store/memory-crypto-store.js

@@ -257,7 +257,7 @@ export class MemoryCryptoStore {
         func(this._crossSigningKeys);
     }
 
-    getCrossSigningPrivateKey(txn, func, type) {
+    getSecretStorePrivateKey(txn, func, type) {
         const result = this._privateKeys[type];
         return func(result || null);
     }
@@ -266,19 +266,10 @@ export class MemoryCryptoStore {
         this._crossSigningKeys = keys;
     }
 
-    storeCrossSigningPrivateKey(txn, type, key) {
+    storeSecretStorePrivateKey(txn, type, key) {
         this._privateKeys[type] = key;
     }
 
-    getBackupKey(txn, func, type) {
-        const result = this._backupKeys[type];
-        return func(result || null);
-    }
-
-    storeBackupKey(txn, type, key) {
-        this._backupKeys[type] = key;
-    }
-
     // Olm Sessions
 
     countEndToEndSessions(txn, func) {