fune/dom/ipc/JSValidatorParent.cpp

81 lines
2.7 KiB
C++

/* -*- 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 "mozilla/net/OpaqueResponseUtils.h"
#include "mozilla/dom/JSValidatorParent.h"
#include "mozilla/dom/JSValidatorUtils.h"
#include "mozilla/dom/JSOracleParent.h"
#include "mozilla/RefPtr.h"
namespace mozilla::dom {
/* static */
already_AddRefed<JSValidatorParent> JSValidatorParent::Create() {
RefPtr<JSValidatorParent> validator = new JSValidatorParent();
JSOracleParent::WithJSOracle([validator](JSOracleParent* aParent) {
MOZ_ASSERT_IF(aParent, aParent->CanSend());
if (aParent) {
MOZ_ALWAYS_TRUE(aParent->SendPJSValidatorConstructor(validator));
}
});
return validator.forget();
}
void JSValidatorParent::IsOpaqueResponseAllowed(
const std::function<void(Maybe<Shmem>, ValidatorResult)>& aCallback) {
JSOracleParent::WithJSOracle([=, self = RefPtr{this}](const auto* aParent) {
if (aParent) {
MOZ_DIAGNOSTIC_ASSERT(self->CanSend());
self->SendIsOpaqueResponseAllowed()->Then(
GetMainThreadSerialEventTarget(), __func__,
[aCallback](
const IsOpaqueResponseAllowedPromise::ResolveOrRejectValue&
aResult) {
if (aResult.IsResolve()) {
Maybe<Shmem> data;
ValidatorResult result;
Tie(data, result) = aResult.ResolveValue();
aCallback(std::move(data), result);
} else {
aCallback(Nothing(), ValidatorResult::Failure);
}
});
} else {
aCallback(Nothing(), ValidatorResult::Failure);
}
});
}
void JSValidatorParent::OnDataAvailable(const nsACString& aData) {
JSOracleParent::WithJSOracle(
[self = RefPtr{this}, data = nsCString{aData}](const auto* aParent) {
if (!aParent) {
return;
}
if (self->CanSend()) {
Shmem sharedData;
nsresult rv =
JSValidatorUtils::CopyCStringToShmem(self, data, sharedData);
if (NS_FAILED(rv)) {
return;
}
Unused << self->SendOnDataAvailable(std::move(sharedData));
}
});
}
void JSValidatorParent::OnStopRequest(nsresult aResult) {
JSOracleParent::WithJSOracle(
[self = RefPtr{this}, aResult](const auto* aParent) {
if (!aParent) {
return;
}
if (self->CanSend()) {
Unused << self->SendOnStopRequest(aResult);
}
});
}
} // namespace mozilla::dom