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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/quota/FileStreams.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/quota/FileStreams.cpp')
-rw-r--r--dom/quota/FileStreams.cpp200
1 files changed, 200 insertions, 0 deletions
diff --git a/dom/quota/FileStreams.cpp b/dom/quota/FileStreams.cpp
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+/* -*- 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/. */
+
+#include "FileStreams.h"
+
+// Local includes
+#include "QuotaCommon.h"
+#include "QuotaManager.h"
+#include "QuotaObject.h"
+#include "RemoteQuotaObject.h"
+
+// Global includes
+#include <utility>
+#include "mozilla/Assertions.h"
+#include "mozilla/DebugOnly.h"
+#include "mozilla/Result.h"
+#include "mozilla/dom/quota/ResultExtensions.h"
+#include "mozilla/ipc/RandomAccessStreamParams.h"
+#include "nsDebug.h"
+#include "prio.h"
+
+namespace mozilla::dom::quota {
+
+template <class FileStreamBase>
+NS_IMETHODIMP FileQuotaStream<FileStreamBase>::SetEOF() {
+ // If the stream is not quota tracked, or on an early or late stage in the
+ // lifecycle, mQuotaObject is null. Under these circumstances,
+ // we don't check the quota limit in order to avoid breakage.
+ if (mQuotaObject) {
+ int64_t offset = 0;
+ QM_TRY(MOZ_TO_RESULT(FileStreamBase::Tell(&offset)));
+
+ QM_TRY(OkIf(mQuotaObject->MaybeUpdateSize(offset, /* aTruncate */ true)),
+ NS_ERROR_FILE_NO_DEVICE_SPACE);
+ }
+
+ QM_TRY(MOZ_TO_RESULT(FileStreamBase::SetEOF()));
+
+ return NS_OK;
+}
+
+template <class FileStreamBase>
+NS_IMETHODIMP FileQuotaStream<FileStreamBase>::Close() {
+ QM_TRY(MOZ_TO_RESULT(FileStreamBase::Close()));
+
+ if (mQuotaObject) {
+ if (auto* remoteQuotaObject = mQuotaObject->AsRemoteQuotaObject()) {
+ remoteQuotaObject->Close();
+ }
+
+ mQuotaObject = nullptr;
+ }
+
+ return NS_OK;
+}
+
+template <class FileStreamBase>
+nsresult FileQuotaStream<FileStreamBase>::DoOpen() {
+ MOZ_RELEASE_ASSERT(XRE_IsParentProcess());
+ MOZ_RELEASE_ASSERT(!mDeserialized);
+
+ QuotaManager* quotaManager = QuotaManager::Get();
+ MOZ_ASSERT(quotaManager, "Shouldn't be null!");
+
+ MOZ_ASSERT(!mQuotaObject, "Creating quota object more than once?");
+ mQuotaObject = quotaManager->GetQuotaObject(
+ mPersistenceType, mOriginMetadata, mClientType,
+ FileStreamBase::mOpenParams.localFile);
+
+ QM_TRY(MOZ_TO_RESULT(FileStreamBase::DoOpen()));
+
+ if (mQuotaObject && (FileStreamBase::mOpenParams.ioFlags & PR_TRUNCATE)) {
+ DebugOnly<bool> res =
+ mQuotaObject->MaybeUpdateSize(0, /* aTruncate */ true);
+ MOZ_ASSERT(res);
+ }
+
+ return NS_OK;
+}
+
+template <class FileStreamBase>
+NS_IMETHODIMP FileQuotaStreamWithWrite<FileStreamBase>::Write(
+ const char* aBuf, uint32_t aCount, uint32_t* _retval) {
+ if (FileQuotaStreamWithWrite::mQuotaObject) {
+ int64_t offset;
+ QM_TRY(MOZ_TO_RESULT(FileStreamBase::Tell(&offset)));
+
+ MOZ_ASSERT(INT64_MAX - offset >= int64_t(aCount));
+
+ if (!FileQuotaStreamWithWrite::mQuotaObject->MaybeUpdateSize(
+ offset + int64_t(aCount),
+ /* aTruncate */ false)) {
+ *_retval = 0;
+ return NS_ERROR_FILE_NO_DEVICE_SPACE;
+ }
+ }
+
+ QM_TRY(MOZ_TO_RESULT(FileStreamBase::Write(aBuf, aCount, _retval)));
+
+ return NS_OK;
+}
+
+mozilla::ipc::RandomAccessStreamParams FileRandomAccessStream::Serialize(
+ nsIInterfaceRequestor* aCallbacks) {
+ MOZ_RELEASE_ASSERT(XRE_IsParentProcess());
+ MOZ_RELEASE_ASSERT(!mDeserialized);
+ MOZ_ASSERT(mOpenParams.localFile);
+
+ QuotaManager* quotaManager = QuotaManager::Get();
+ MOZ_ASSERT(quotaManager);
+
+ RefPtr<QuotaObject> quotaObject = quotaManager->GetQuotaObject(
+ mPersistenceType, mOriginMetadata, mClientType, mOpenParams.localFile);
+ MOZ_ASSERT(quotaObject);
+
+ IPCQuotaObject ipcQuotaObject = quotaObject->Serialize(aCallbacks);
+
+ mozilla::ipc::RandomAccessStreamParams randomAccessStreamParams =
+ nsFileRandomAccessStream::Serialize(aCallbacks);
+
+ MOZ_ASSERT(
+ randomAccessStreamParams.type() ==
+ mozilla::ipc::RandomAccessStreamParams::TFileRandomAccessStreamParams);
+
+ mozilla::ipc::LimitingFileRandomAccessStreamParams
+ limitingFileRandomAccessStreamParams;
+ limitingFileRandomAccessStreamParams.fileRandomAccessStreamParams() =
+ std::move(randomAccessStreamParams);
+ limitingFileRandomAccessStreamParams.quotaObject() =
+ std::move(ipcQuotaObject);
+
+ return limitingFileRandomAccessStreamParams;
+}
+
+bool FileRandomAccessStream::Deserialize(
+ mozilla::ipc::RandomAccessStreamParams& aParams) {
+ MOZ_ASSERT(aParams.type() == mozilla::ipc::RandomAccessStreamParams::
+ TLimitingFileRandomAccessStreamParams);
+
+ auto& params = aParams.get_LimitingFileRandomAccessStreamParams();
+
+ mozilla::ipc::RandomAccessStreamParams randomAccessStreamParams(
+ std::move(params.fileRandomAccessStreamParams()));
+
+ QM_TRY(MOZ_TO_RESULT(
+ nsFileRandomAccessStream::Deserialize(randomAccessStreamParams)),
+ false);
+
+ mQuotaObject = QuotaObject::Deserialize(params.quotaObject());
+
+ return true;
+}
+
+Result<MovingNotNull<nsCOMPtr<nsIInputStream>>, nsresult> CreateFileInputStream(
+ PersistenceType aPersistenceType, const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType, nsIFile* aFile, int32_t aIOFlags, int32_t aPerm,
+ int32_t aBehaviorFlags) {
+ auto stream = MakeRefPtr<FileInputStream>(aPersistenceType, aOriginMetadata,
+ aClientType);
+
+ QM_TRY(MOZ_TO_RESULT(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags)));
+
+ return WrapMovingNotNullUnchecked(
+ nsCOMPtr<nsIInputStream>(std::move(stream)));
+}
+
+Result<MovingNotNull<nsCOMPtr<nsIOutputStream>>, nsresult>
+CreateFileOutputStream(PersistenceType aPersistenceType,
+ const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType, nsIFile* aFile,
+ int32_t aIOFlags, int32_t aPerm,
+ int32_t aBehaviorFlags) {
+ auto stream = MakeRefPtr<FileOutputStream>(aPersistenceType, aOriginMetadata,
+ aClientType);
+
+ QM_TRY(MOZ_TO_RESULT(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags)));
+
+ return WrapMovingNotNullUnchecked(
+ nsCOMPtr<nsIOutputStream>(std::move(stream)));
+}
+
+Result<MovingNotNull<nsCOMPtr<nsIRandomAccessStream>>, nsresult>
+CreateFileRandomAccessStream(PersistenceType aPersistenceType,
+ const OriginMetadata& aOriginMetadata,
+ Client::Type aClientType, nsIFile* aFile,
+ int32_t aIOFlags, int32_t aPerm,
+ int32_t aBehaviorFlags) {
+ auto stream = MakeRefPtr<FileRandomAccessStream>(
+ aPersistenceType, aOriginMetadata, aClientType);
+
+ QM_TRY(MOZ_TO_RESULT(stream->Init(aFile, aIOFlags, aPerm, aBehaviorFlags)));
+
+ return WrapMovingNotNullUnchecked(
+ nsCOMPtr<nsIRandomAccessStream>(std::move(stream)));
+}
+
+} // namespace mozilla::dom::quota