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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 mozilla_dom_U2FTokenManager_h
+#define mozilla_dom_U2FTokenManager_h
+
+#include "nsIU2FTokenManager.h"
+#include "mozilla/dom/U2FTokenTransport.h"
+#include "mozilla/dom/PWebAuthnTransaction.h"
+#include "mozilla/Tainting.h"
+
+/*
+ * Parent process manager for U2F and WebAuthn API transactions. Handles process
+ * transactions from all content processes, make sure only one transaction is
+ * live at any time. Manages access to hardware and software based key systems.
+ *
+ * U2FTokenManager is created on the first access to functions of either the U2F
+ * or WebAuthn APIs that require key registration or signing. It lives until the
+ * end of the browser process.
+ */
+
+namespace mozilla::dom {
+
+class U2FSoftTokenManager;
+class WebAuthnTransactionParent;
+
+class U2FTokenManager final : public nsIU2FTokenManager {
+ public:
+ NS_DECL_THREADSAFE_ISUPPORTS
+ NS_DECL_NSIU2FTOKENMANAGER
+
+ static U2FTokenManager* Get();
+ void Register(PWebAuthnTransactionParent* aTransactionParent,
+ const uint64_t& aTransactionId,
+ const WebAuthnMakeCredentialInfo& aTransactionInfo);
+ void Sign(PWebAuthnTransactionParent* aTransactionParent,
+ const uint64_t& aTransactionId,
+ const WebAuthnGetAssertionInfo& aTransactionInfo);
+ void Cancel(PWebAuthnTransactionParent* aTransactionParent,
+ const Tainted<uint64_t>& aTransactionId);
+ void MaybeClearTransaction(PWebAuthnTransactionParent* aParent);
+ static void Initialize();
+
+ Maybe<nsString> GetCurrentOrigin() {
+ if (mPendingRegisterInfo.isSome()) {
+ return Some(mPendingRegisterInfo.value().Origin());
+ }
+
+ if (mPendingSignInfo.isSome()) {
+ return Some(mPendingSignInfo.value().Origin());
+ }
+ return Nothing();
+ }
+
+ uint64_t GetCurrentTransactionId() { return mLastTransactionId; }
+
+ bool CurrentTransactionIsRegister() { return mPendingRegisterInfo.isSome(); }
+
+ bool CurrentTransactionIsSign() { return mPendingSignInfo.isSome(); }
+
+ // Sends a "webauthn-prompt" observer notification with the given data.
+ template <typename... T>
+ void SendPromptNotification(const char16_t* aFormat, T... aArgs);
+ // The main thread runnable function for "SendPromptNotification".
+ void RunSendPromptNotification(const nsString& aJSON);
+
+ private:
+ U2FTokenManager();
+ ~U2FTokenManager() = default;
+ RefPtr<U2FTokenTransport> GetTokenManagerImpl();
+ void AbortTransaction(const uint64_t& aTransactionId, const nsresult& aError,
+ bool shouldCancelActiveDialog);
+ void AbortOngoingTransaction();
+ void ClearTransaction(bool send_cancel);
+ // Step two of "Register", kicking off the actual transaction.
+ void DoRegister(const WebAuthnMakeCredentialInfo& aInfo,
+ bool aForceNoneAttestation);
+ void DoSign(const WebAuthnGetAssertionInfo& aTransactionInfo);
+ void MaybeConfirmRegister(const uint64_t& aTransactionId,
+ const WebAuthnMakeCredentialResult& aResult);
+ void MaybeAbortRegister(const uint64_t& aTransactionId,
+ const nsresult& aError,
+ bool shouldCancelActiveDialog);
+ void MaybeConfirmSign(const uint64_t& aTransactionId,
+ const WebAuthnGetAssertionResult& aResult);
+ void MaybeAbortSign(const uint64_t& aTransactionId, const nsresult& aError,
+ bool shouldCancelActiveDialog);
+ // The main thread runnable function for "nsIU2FTokenManager.ResumeRegister".
+ void RunResumeRegister(uint64_t aTransactionId, bool aForceNoneAttestation);
+ void RunResumeSign(uint64_t aTransactionId);
+ void RunResumeWithSelectedSignResult(uint64_t aTransactionId, uint64_t idx);
+ // The main thread runnable function for "nsIU2FTokenManager.Cancel".
+ void RunCancel(uint64_t aTransactionId);
+ // Using a raw pointer here, as the lifetime of the IPC object is managed by
+ // the PBackground protocol code. This means we cannot be left holding an
+ // invalid IPC protocol object after the transaction is finished.
+ PWebAuthnTransactionParent* mTransactionParent;
+ RefPtr<U2FTokenTransport> mTokenManagerImpl;
+ MozPromiseRequestHolder<U2FRegisterPromise> mRegisterPromise;
+ MozPromiseRequestHolder<U2FSignPromise> mSignPromise;
+ // The last transaction id, non-zero if there's an active transaction. This
+ // guards any cancel messages to ensure we don't cancel newer transactions
+ // due to a stale message.
+ uint64_t mLastTransactionId;
+ // Pending registration info while we wait for user input.
+ Maybe<WebAuthnMakeCredentialInfo> mPendingRegisterInfo;
+ // Pending registration info while we wait for user input.
+ Maybe<WebAuthnGetAssertionInfo> mPendingSignInfo;
+ nsTArray<WebAuthnGetAssertionResultWrapper> mPendingSignResults;
+};
+
+} // namespace mozilla::dom
+
+#endif // mozilla_dom_U2FTokenManager_h