Use a constant for the indexeddb prefix

src/client.ts

@@ -211,6 +211,7 @@ import { LocalNotificationSettings } from "./@types/local_notifications";
 import { UNREAD_THREAD_NOTIFICATIONS } from "./@types/sync";
 import { buildFeatureSupportMap, Feature, ServerSupport } from "./feature";
 import { CryptoBackend } from "./common-crypto/CryptoBackend";
+import { RUST_SDK_STORE_PREFIX } from "./rust-crypto/constants";
 
 export type Store = IStore;
 
@@ -1667,7 +1668,10 @@ export class MatrixClient extends TypedEventEmitter<EmittedEvents, ClientEventHa
                 // No indexeddb support
                 return;
             }
-            for (const dbname of ["matrix-js-sdk::matrix-sdk-crypto", "matrix-js-sdk::matrix-sdk-crypto-meta"]) {
+            for (const dbname of [
+                `${RUST_SDK_STORE_PREFIX}::matrix-sdk-crypto`,
+                `${RUST_SDK_STORE_PREFIX}::matrix-sdk-crypto-meta`,
+            ]) {
                 const prom = new Promise((resolve, reject) => {
                     logger.info(`Removing IndexedDB instance ${dbname}`);
                     const req = indexedDB.deleteDatabase(dbname);

src/rust-crypto/constants.ts

@@ -0,0 +1,18 @@
+/*
+Copyright 2022 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.
+*/
+
+/** The prefix used on indexeddbs created by rust-crypto */
+export const RUST_SDK_STORE_PREFIX = "matrix-js-sdk";

src/rust-crypto/index.ts

@@ -19,6 +19,7 @@ import * as RustSdkCryptoJs from "@matrix-org/matrix-sdk-crypto-js";
 import { RustCrypto } from "./rust-crypto";
 import { logger } from "../logger";
 import { CryptoBackend } from "../common-crypto/CryptoBackend";
+import { RUST_SDK_STORE_PREFIX } from "./constants";
 
 export async function initRustCrypto(userId: string, deviceId: string): Promise<CryptoBackend> {
     // initialise the rust matrix-sdk-crypto-js, if it hasn't already been done
@@ -32,7 +33,7 @@ export async function initRustCrypto(userId: string, deviceId: string): Promise<
     logger.info("Init OlmMachine");
 
     // TODO: use the pickle key for the passphrase
-    const olmMachine = await RustSdkCryptoJs.OlmMachine.initialize(u, d, "matrix-js-sdk", "test pass");
+    const olmMachine = await RustSdkCryptoJs.OlmMachine.initialize(u, d, RUST_SDK_STORE_PREFIX, "test pass");
     const rustCrypto = new RustCrypto(olmMachine, userId, deviceId);
 
     logger.info("Completed rust crypto-sdk setup");