From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- dom/indexedDB/IndexedDBCipherKeyManager.h | 44 +++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 dom/indexedDB/IndexedDBCipherKeyManager.h (limited to 'dom/indexedDB/IndexedDBCipherKeyManager.h') diff --git a/dom/indexedDB/IndexedDBCipherKeyManager.h b/dom/indexedDB/IndexedDBCipherKeyManager.h new file mode 100644 index 0000000000..aca02add97 --- /dev/null +++ b/dom/indexedDB/IndexedDBCipherKeyManager.h @@ -0,0 +1,44 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef DOM_INDEXEDDB_INDEXEDDBCIPHERKEYMANAGER_H_ +#define DOM_INDEXEDDB_INDEXEDDBCIPHERKEYMANAGER_H_ + +#include "mozilla/DataMutex.h" +#include "mozilla/dom/quota/IPCStreamCipherStrategy.h" +#include "nsTHashMap.h" + +namespace mozilla::dom::indexedDB { + +using IndexedDBCipherStrategy = quota::IPCStreamCipherStrategy; +using CipherKey = IndexedDBCipherStrategy::KeyType; + +class IndexedDBCipherKeyManager { + // This helper class is used by IndexedDB operations to store/retrieve cipher + // keys in private browsing mode. All data in IndexedDB must be encrypted + // using a cipher key and unique IV (Initialization Vector). While there's a + // separate cipher key for every blob file; the SQLite database gets encrypted + // using the commmon database key. All keys pertaining to a single IndexedDB + // database get stored together in a hashmap. So the hashmap can be used to + // to look up the common database key and blob keys using "default" and blob + // file ids respectively. + + public: + IndexedDBCipherKeyManager() : mCipherKeys("IndexedDBCipherKeyManager"){}; + + Maybe Get(const nsACString& aKeyId = "default"_ns); + + CipherKey Ensure(const nsACString& aKeyId = "default"_ns); + + private: + // XXX Maybe we can avoid a mutex here by moving all accesses to the + // background thread. + DataMutex> mCipherKeys; +}; + +} // namespace mozilla::dom::indexedDB + +#endif // DOM_INDEXEDDB_INDEXEDDBCIPHERKEYMANAGER_H_ -- cgit v1.2.3