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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 "FileSystemHashStorageFunction.h"
#include "FileSystemHashSource.h"
#include "mozilla/dom/FileSystemTypes.h"
#include "mozilla/dom/quota/QuotaCommon.h"
#include "mozilla/storage/Variant.h"
#include "nsString.h"
#include "nsStringFwd.h"
namespace mozilla::dom::fs::data {
NS_IMPL_ISUPPORTS(FileSystemHashStorageFunction, mozIStorageFunction)
NS_IMETHODIMP
FileSystemHashStorageFunction::OnFunctionCall(
mozIStorageValueArray* aFunctionArguments, nsIVariant** aResult) {
MOZ_ASSERT(aFunctionArguments);
MOZ_ASSERT(aResult);
const int32_t parentIndex = 0;
const int32_t childIndex = 1;
#ifdef DEBUG
{
uint32_t argCount;
MOZ_ALWAYS_SUCCEEDS(aFunctionArguments->GetNumEntries(&argCount));
MOZ_ASSERT(argCount == 2u);
int32_t parentType = mozIStorageValueArray::VALUE_TYPE_INTEGER;
MOZ_ALWAYS_SUCCEEDS(
aFunctionArguments->GetTypeOfIndex(parentIndex, &parentType));
MOZ_ASSERT(parentType == mozIStorageValueArray::VALUE_TYPE_BLOB);
int32_t childType = mozIStorageValueArray::VALUE_TYPE_INTEGER;
MOZ_ALWAYS_SUCCEEDS(
aFunctionArguments->GetTypeOfIndex(childIndex, &childType));
MOZ_ASSERT(childType == mozIStorageValueArray::VALUE_TYPE_BLOB);
}
#endif
QM_TRY_INSPECT(
const EntryId& parentHash,
MOZ_TO_RESULT_INVOKE_MEMBER_TYPED(nsCString, aFunctionArguments,
GetBlobAsUTF8String, parentIndex));
QM_TRY_INSPECT(const Name& childName, MOZ_TO_RESULT_INVOKE_MEMBER_TYPED(
nsString, aFunctionArguments,
GetBlobAsString, childIndex));
QM_TRY_INSPECT(const EntryId& buffer,
FileSystemHashSource::GenerateHash(parentHash, childName)
.mapErr([](const auto& aRv) { return ToNSResult(aRv); }));
nsCOMPtr<nsIVariant> result =
new mozilla::storage::BlobVariant(std::make_pair(
static_cast<const void*>(buffer.get()), int(buffer.Length())));
result.forget(aResult);
return NS_OK;
}
} // namespace mozilla::dom::fs::data
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