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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 "mozilla/dom/WebAuthnTransactionChild.h"
namespace mozilla::dom {
WebAuthnTransactionChild::WebAuthnTransactionChild(
WebAuthnManagerBase* aManager)
: mManager(aManager) {
MOZ_ASSERT(aManager);
// Retain a reference so the task object isn't deleted without IPDL's
// knowledge. The reference will be released by
// mozilla::ipc::BackgroundChildImpl::DeallocPWebAuthnTransactionChild.
NS_ADDREF_THIS();
}
mozilla::ipc::IPCResult WebAuthnTransactionChild::RecvConfirmRegister(
const uint64_t& aTransactionId,
const WebAuthnMakeCredentialResult& aResult) {
if (NS_WARN_IF(!mManager)) {
return IPC_FAIL_NO_REASON(this);
}
// We don't own the reference to mManager. We need to prevent its refcount
// going to 0 while we call anything that can reach the call to
// StopListeningForVisibilityEvents in WebAuthnManager::ClearTransaction
// (often via WebAuthnManager::RejectTransaction).
RefPtr<WebAuthnManagerBase> kungFuDeathGrip(mManager);
kungFuDeathGrip->FinishMakeCredential(aTransactionId, aResult);
return IPC_OK();
}
mozilla::ipc::IPCResult WebAuthnTransactionChild::RecvConfirmSign(
const uint64_t& aTransactionId, const WebAuthnGetAssertionResult& aResult) {
if (NS_WARN_IF(!mManager)) {
return IPC_FAIL_NO_REASON(this);
}
// We don't own the reference to mManager. We need to prevent its refcount
// going to 0 while we call anything that can reach the call to
// StopListeningForVisibilityEvents in WebAuthnManager::ClearTransaction
// (often via WebAuthnManager::RejectTransaction).
RefPtr<WebAuthnManagerBase> kungFuDeathGrip(mManager);
kungFuDeathGrip->FinishGetAssertion(aTransactionId, aResult);
return IPC_OK();
}
mozilla::ipc::IPCResult WebAuthnTransactionChild::RecvAbort(
const uint64_t& aTransactionId, const nsresult& aError) {
if (NS_WARN_IF(!mManager)) {
return IPC_FAIL_NO_REASON(this);
}
// We don't own the reference to mManager. We need to prevent its refcount
// going to 0 while we call anything that can reach the call to
// StopListeningForVisibilityEvents in WebAuthnManager::ClearTransaction
// (often via WebAuthnManager::RejectTransaction).
RefPtr<WebAuthnManagerBase> kungFuDeathGrip(mManager);
kungFuDeathGrip->RequestAborted(aTransactionId, aError);
return IPC_OK();
}
void WebAuthnTransactionChild::ActorDestroy(ActorDestroyReason why) {
// Called by either a __delete__ message from the parent, or when the
// channel disconnects. Clear out the child actor reference to be sure.
if (mManager) {
mManager->ActorDestroyed();
mManager = nullptr;
}
}
void WebAuthnTransactionChild::Disconnect() {
mManager = nullptr;
// The WebAuthnManager released us, but we're going to be held alive by the
// IPC layer. The parent will explicitly destroy us via Send__delete__(),
// after receiving the DestroyMe message.
SendDestroyMe();
}
} // namespace mozilla::dom
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