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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/. */
#ifndef IndexedDatabaseInlines_h
#define IndexedDatabaseInlines_h
#ifndef mozilla_dom_indexeddatabase_h__
# error Must include IndexedDatabase.h first
#endif
#include "DatabaseFileInfo.h"
#include "mozilla/dom/DOMStringList.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBSharedTypes.h"
namespace mozilla::dom::indexedDB {
#ifdef NS_BUILD_REFCNT_LOGGING
inline StructuredCloneFileChild::StructuredCloneFileChild(
StructuredCloneFileChild&& aOther)
: StructuredCloneFileBase{std::move(aOther)},
mContents{std::move(aOther.mContents)} {
MOZ_COUNT_CTOR(StructuredCloneFileChild);
}
#endif
inline StructuredCloneFileChild::~StructuredCloneFileChild() {
MOZ_COUNT_DTOR(StructuredCloneFileChild);
}
inline StructuredCloneFileChild::StructuredCloneFileChild(FileType aType)
: StructuredCloneFileBase{aType}, mContents{Nothing()} {
MOZ_COUNT_CTOR(StructuredCloneFileChild);
}
inline StructuredCloneFileChild::StructuredCloneFileChild(
FileType aType, RefPtr<dom::Blob> aBlob)
: StructuredCloneFileBase{aType}, mContents{std::move(aBlob)} {
MOZ_ASSERT(eBlob == aType || eStructuredClone == aType);
MOZ_ASSERT(mContents->as<RefPtr<dom::Blob>>());
MOZ_COUNT_CTOR(StructuredCloneFileChild);
}
inline StructuredCloneFileParent::StructuredCloneFileParent(
FileType aType, SafeRefPtr<DatabaseFileInfo> aFileInfo)
: StructuredCloneFileBase{aType}, mContents{Some(std::move(aFileInfo))} {
MOZ_ASSERT(**mContents);
MOZ_COUNT_CTOR(StructuredCloneFileParent);
}
#ifdef NS_BUILD_REFCNT_LOGGING
inline StructuredCloneFileParent::StructuredCloneFileParent(
StructuredCloneFileParent&& aOther)
: StructuredCloneFileBase{std::move(aOther)},
mContents{std::move(aOther.mContents)} {
MOZ_COUNT_CTOR(StructuredCloneFileParent);
}
#endif
inline StructuredCloneFileParent::~StructuredCloneFileParent() {
MOZ_COUNT_DTOR(StructuredCloneFileParent);
}
inline SafeRefPtr<DatabaseFileInfo> StructuredCloneFileParent::FileInfoPtr()
const {
return (*mContents)->clonePtr();
}
inline RefPtr<dom::Blob> StructuredCloneFileChild::BlobPtr() const {
return mContents->as<RefPtr<dom::Blob>>();
}
template <typename StructuredCloneFile>
inline StructuredCloneReadInfo<StructuredCloneFile>::StructuredCloneReadInfo(
JS::StructuredCloneScope aScope)
: StructuredCloneReadInfoBase(JSStructuredCloneData{aScope}) {
MOZ_COUNT_CTOR(StructuredCloneReadInfo);
}
template <typename StructuredCloneFile>
inline StructuredCloneReadInfo<StructuredCloneFile>::StructuredCloneReadInfo()
: StructuredCloneReadInfo(
JS::StructuredCloneScope::DifferentProcessForIndexedDB) {}
template <typename StructuredCloneFile>
inline StructuredCloneReadInfo<StructuredCloneFile>::StructuredCloneReadInfo(
JSStructuredCloneData&& aData, nsTArray<StructuredCloneFile> aFiles)
: StructuredCloneReadInfoBase{std::move(aData)}, mFiles{std::move(aFiles)} {
MOZ_COUNT_CTOR(StructuredCloneReadInfo);
}
#ifdef NS_BUILD_REFCNT_LOGGING
template <typename StructuredCloneFile>
inline StructuredCloneReadInfo<StructuredCloneFile>::StructuredCloneReadInfo(
StructuredCloneReadInfo&& aOther) noexcept
: StructuredCloneReadInfoBase{std::move(aOther)},
mFiles{std::move(aOther.mFiles)} {
MOZ_COUNT_CTOR(StructuredCloneReadInfo);
}
template <typename StructuredCloneFile>
inline StructuredCloneReadInfo<
StructuredCloneFile>::~StructuredCloneReadInfo() {
MOZ_COUNT_DTOR(StructuredCloneReadInfo);
}
#endif
template <typename StructuredCloneFile>
inline size_t StructuredCloneReadInfo<StructuredCloneFile>::Size() const {
// We do not check the structured clone size against
// IndexedDatabaseManager::MaxStructuredCloneSize here.
// The size has already been validated before being sent from the content
// process to the parent process. At this stage, the parent process has
// either stored the data in the database or written it to a separate file,
// ensuring that size constraints are enforced elsewhere.
//
// If necessary, we could add a warning to flag oversized structured clones
// here. However, failing the request entirely would require additional
// changes, such as making these methods fallible, which would add complexity.
// Serialized structured clone size in bytes. For structured clone sizes >
// IPC::kMessageBufferShmemThreshold, only the size and shared memory handle
// are included in the IPC message. The value 16 is an estimate.
size_t size =
Data().Size() > IPC::kMessageBufferShmemThreshold ? 16 : Data().Size();
for (uint32_t i = 0, count = mFiles.Length(); i < count; ++i) {
// We don't want to calculate the size of files and so on, because are
// mainly file descriptors.
size += sizeof(uint64_t);
}
return size;
}
inline StructuredCloneReadInfoChild::StructuredCloneReadInfoChild(
JSStructuredCloneData&& aData, nsTArray<StructuredCloneFileChild> aFiles,
IDBDatabase* aDatabase)
: StructuredCloneReadInfo{std::move(aData), std::move(aFiles)},
mDatabase{aDatabase} {}
template <typename E, typename Map>
RefPtr<DOMStringList> CreateSortedDOMStringList(const nsTArray<E>& aArray,
const Map& aMap) {
auto list = MakeRefPtr<DOMStringList>();
if (!aArray.IsEmpty()) {
nsTArray<nsString>& mapped = list->StringArray();
mapped.SetCapacity(aArray.Length());
std::transform(aArray.cbegin(), aArray.cend(), MakeBackInserter(mapped),
aMap);
mapped.Sort();
}
return list;
}
template <typename StructuredCloneReadInfoType>
JSObject* StructuredCloneReadCallback(
JSContext* const aCx, JSStructuredCloneReader* const aReader,
const JS::CloneDataPolicy& aCloneDataPolicy, const uint32_t aTag,
const uint32_t aData, void* const aClosure) {
auto* const database = [aClosure]() -> IDBDatabase* {
if constexpr (std::is_same_v<StructuredCloneReadInfoType,
StructuredCloneReadInfoChild>) {
return static_cast<StructuredCloneReadInfoChild*>(aClosure)->Database();
}
Unused << aClosure;
return nullptr;
}();
return CommonStructuredCloneReadCallback(
aCx, aReader, aCloneDataPolicy, aTag, aData,
static_cast<StructuredCloneReadInfoType*>(aClosure), database);
}
template <typename T>
bool WrapAsJSObject(JSContext* const aCx, T& aBaseObject,
JS::MutableHandle<JSObject*> aResult) {
JS::Rooted<JS::Value> wrappedValue(aCx);
if (!ToJSValue(aCx, aBaseObject, &wrappedValue)) {
return false;
}
aResult.set(&wrappedValue.toObject());
return true;
}
} // namespace mozilla::dom::indexedDB
#endif // IndexedDatabaseInlines_h
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