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a3256fcae8
Summary: We currently have a single WebAuthnManager instance per process that's shared between all CredentialContainers. That way the nsPIDOMWindowInner parent has to be tracked by the transaction, as multiple containers could kick off requests simultaneously. This patch lets us we have one WebAuthnManager instance per each CredentialsContainer and thus each nsPIDOMWindowInner. This matches the current U2F implementation where there is one instance per parent window too. This somewhat simplifies the communication diagram (at least in my head), as each U2F/WebAuthnManager instance also has their own TransactionChild/Parent pair for IPC protocol communication. The manager and child/parent pair are destroyed when the window is. Reviewers: jcj Reviewed By: jcj Bug #: 1421616 Differential Revision: https://phabricator.services.mozilla.com/D305
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/WebAuthnTransactionParent.h"
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#include "mozilla/dom/U2FTokenManager.h"
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#include "mozilla/ipc/PBackgroundParent.h"
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#include "mozilla/ipc/BackgroundParent.h"
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namespace mozilla {
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namespace dom {
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mozilla::ipc::IPCResult
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WebAuthnTransactionParent::RecvRequestRegister(const uint64_t& aTransactionId,
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const WebAuthnMakeCredentialInfo& aTransactionInfo)
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{
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AssertIsOnBackgroundThread();
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U2FTokenManager* mgr = U2FTokenManager::Get();
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mgr->Register(this, aTransactionId, aTransactionInfo);
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return IPC_OK();
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}
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mozilla::ipc::IPCResult
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WebAuthnTransactionParent::RecvRequestSign(const uint64_t& aTransactionId,
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const WebAuthnGetAssertionInfo& aTransactionInfo)
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{
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AssertIsOnBackgroundThread();
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U2FTokenManager* mgr = U2FTokenManager::Get();
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mgr->Sign(this, aTransactionId, aTransactionInfo);
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return IPC_OK();
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}
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mozilla::ipc::IPCResult
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WebAuthnTransactionParent::RecvRequestCancel(const uint64_t& aTransactionId)
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{
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AssertIsOnBackgroundThread();
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U2FTokenManager* mgr = U2FTokenManager::Get();
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mgr->Cancel(this, aTransactionId);
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return IPC_OK();
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}
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mozilla::ipc::IPCResult
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WebAuthnTransactionParent::RecvDestroyMe()
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{
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AssertIsOnBackgroundThread();
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// The child was disconnected from the WebAuthnManager instance and will send
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// no further messages. It is kept alive until we delete it explicitly.
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// The child should have cancelled any active transaction. This means
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// we expect no more messages to the child. We'll crash otherwise.
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// The IPC roundtrip is complete. No more messages, hopefully.
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IProtocol* mgr = Manager();
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if (!Send__delete__(this)) {
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return IPC_FAIL_NO_REASON(mgr);
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}
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return IPC_OK();
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}
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void
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WebAuthnTransactionParent::ActorDestroy(ActorDestroyReason aWhy)
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{
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AssertIsOnBackgroundThread();
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// Called either by Send__delete__() in RecvDestroyMe() above, or when
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// the channel disconnects. Ensure the token manager forgets about us.
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U2FTokenManager* mgr = U2FTokenManager::Get();
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// The manager could probably be null on shutdown?
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if (mgr) {
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mgr->MaybeClearTransaction(this);
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}
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}
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}
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}
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