mirror of
https://github.com/mozilla/gecko-dev.git
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770 lines
29 KiB
C++
770 lines
29 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/PWebAuthnTransactionParent.h"
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#include "mozilla/MozPromise.h"
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#include "mozilla/ipc/BackgroundParent.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/Unused.h"
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#include "nsTextFormatter.h"
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#include "nsWindowsHelpers.h"
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#include "WebAuthnEnumStrings.h"
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#include "WebAuthnTransportIdentifiers.h"
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#include "winwebauthn/webauthn.h"
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#include "WinWebAuthnManager.h"
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namespace mozilla::dom {
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namespace {
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static mozilla::LazyLogModule gWinWebAuthnManagerLog("winwebauthnkeymanager");
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StaticAutoPtr<WinWebAuthnManager> gWinWebAuthnManager;
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static HMODULE gWinWebAuthnModule = 0;
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static decltype(WebAuthNIsUserVerifyingPlatformAuthenticatorAvailable)*
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gWinWebauthnIsUVPAA = nullptr;
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static decltype(WebAuthNAuthenticatorMakeCredential)*
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gWinWebauthnMakeCredential = nullptr;
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static decltype(WebAuthNFreeCredentialAttestation)*
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gWinWebauthnFreeCredentialAttestation = nullptr;
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static decltype(WebAuthNAuthenticatorGetAssertion)* gWinWebauthnGetAssertion =
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nullptr;
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static decltype(WebAuthNFreeAssertion)* gWinWebauthnFreeAssertion = nullptr;
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static decltype(WebAuthNGetCancellationId)* gWinWebauthnGetCancellationId =
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nullptr;
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static decltype(WebAuthNCancelCurrentOperation)*
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gWinWebauthnCancelCurrentOperation = nullptr;
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static decltype(WebAuthNGetErrorName)* gWinWebauthnGetErrorName = nullptr;
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static decltype(WebAuthNGetApiVersionNumber)* gWinWebauthnGetApiVersionNumber =
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nullptr;
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} // namespace
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/***********************************************************************
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* WinWebAuthnManager Implementation
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**********************************************************************/
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constexpr uint32_t kMinWinWebAuthNApiVersion = WEBAUTHN_API_VERSION_1;
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WinWebAuthnManager::WinWebAuthnManager() {
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// Create on the main thread to make sure ClearOnShutdown() works.
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(!gWinWebAuthnModule);
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gWinWebAuthnModule = LoadLibrarySystem32(L"webauthn.dll");
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if (gWinWebAuthnModule) {
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gWinWebauthnIsUVPAA = reinterpret_cast<
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decltype(WebAuthNIsUserVerifyingPlatformAuthenticatorAvailable)*>(
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GetProcAddress(
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gWinWebAuthnModule,
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"WebAuthNIsUserVerifyingPlatformAuthenticatorAvailable"));
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gWinWebauthnMakeCredential =
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reinterpret_cast<decltype(WebAuthNAuthenticatorMakeCredential)*>(
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GetProcAddress(gWinWebAuthnModule,
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"WebAuthNAuthenticatorMakeCredential"));
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gWinWebauthnFreeCredentialAttestation =
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reinterpret_cast<decltype(WebAuthNFreeCredentialAttestation)*>(
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GetProcAddress(gWinWebAuthnModule,
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"WebAuthNFreeCredentialAttestation"));
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gWinWebauthnGetAssertion =
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reinterpret_cast<decltype(WebAuthNAuthenticatorGetAssertion)*>(
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GetProcAddress(gWinWebAuthnModule,
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"WebAuthNAuthenticatorGetAssertion"));
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gWinWebauthnFreeAssertion =
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reinterpret_cast<decltype(WebAuthNFreeAssertion)*>(
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GetProcAddress(gWinWebAuthnModule, "WebAuthNFreeAssertion"));
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gWinWebauthnGetCancellationId =
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reinterpret_cast<decltype(WebAuthNGetCancellationId)*>(
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GetProcAddress(gWinWebAuthnModule, "WebAuthNGetCancellationId"));
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gWinWebauthnCancelCurrentOperation =
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reinterpret_cast<decltype(WebAuthNCancelCurrentOperation)*>(
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GetProcAddress(gWinWebAuthnModule,
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"WebAuthNCancelCurrentOperation"));
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gWinWebauthnGetErrorName =
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reinterpret_cast<decltype(WebAuthNGetErrorName)*>(
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GetProcAddress(gWinWebAuthnModule, "WebAuthNGetErrorName"));
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gWinWebauthnGetApiVersionNumber =
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reinterpret_cast<decltype(WebAuthNGetApiVersionNumber)*>(
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GetProcAddress(gWinWebAuthnModule, "WebAuthNGetApiVersionNumber"));
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if (gWinWebauthnIsUVPAA && gWinWebauthnMakeCredential &&
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gWinWebauthnFreeCredentialAttestation && gWinWebauthnGetAssertion &&
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gWinWebauthnFreeAssertion && gWinWebauthnGetCancellationId &&
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gWinWebauthnCancelCurrentOperation && gWinWebauthnGetErrorName &&
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gWinWebauthnGetApiVersionNumber) {
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mWinWebAuthNApiVersion = gWinWebauthnGetApiVersionNumber();
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}
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}
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}
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WinWebAuthnManager::~WinWebAuthnManager() {
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if (gWinWebAuthnModule) {
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FreeLibrary(gWinWebAuthnModule);
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}
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gWinWebAuthnModule = 0;
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}
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// static
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void WinWebAuthnManager::Initialize() {
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if (!gWinWebAuthnManager) {
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gWinWebAuthnManager = new WinWebAuthnManager();
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ClearOnShutdown(&gWinWebAuthnManager);
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}
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}
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// static
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WinWebAuthnManager* WinWebAuthnManager::Get() {
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MOZ_ASSERT(gWinWebAuthnManager);
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return gWinWebAuthnManager;
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}
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uint32_t WinWebAuthnManager::GetWebAuthNApiVersion() {
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return mWinWebAuthNApiVersion;
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}
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// static
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bool WinWebAuthnManager::AreWebAuthNApisAvailable() {
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WinWebAuthnManager* mgr = WinWebAuthnManager::Get();
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return mgr->GetWebAuthNApiVersion() >= kMinWinWebAuthNApiVersion;
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}
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bool WinWebAuthnManager::
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IsUserVerifyingPlatformAuthenticatorAvailableInternal() {
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BOOL isUVPAA = FALSE;
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return (gWinWebauthnIsUVPAA(&isUVPAA) == S_OK && isUVPAA == TRUE);
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}
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// static
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bool WinWebAuthnManager::IsUserVerifyingPlatformAuthenticatorAvailable() {
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if (WinWebAuthnManager::AreWebAuthNApisAvailable()) {
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return WinWebAuthnManager::Get()
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->IsUserVerifyingPlatformAuthenticatorAvailableInternal();
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}
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return false;
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}
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void WinWebAuthnManager::AbortTransaction(const uint64_t& aTransactionId,
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const nsresult& aError) {
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Unused << mTransactionParent->SendAbort(aTransactionId, aError);
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ClearTransaction();
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}
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void WinWebAuthnManager::MaybeClearTransaction(
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PWebAuthnTransactionParent* aParent) {
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// Only clear if we've been requested to do so by our current transaction
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// parent.
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if (mTransactionParent == aParent) {
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ClearTransaction();
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}
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}
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void WinWebAuthnManager::ClearTransaction() { mTransactionParent = nullptr; }
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void WinWebAuthnManager::Register(
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PWebAuthnTransactionParent* aTransactionParent,
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const uint64_t& aTransactionId, const WebAuthnMakeCredentialInfo& aInfo) {
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MOZ_LOG(gWinWebAuthnManagerLog, LogLevel::Debug, ("WinWebAuthNRegister"));
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ClearTransaction();
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mTransactionParent = aTransactionParent;
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BYTE U2FUserId = 0x01;
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WEBAUTHN_EXTENSION rgExtension[1] = {};
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DWORD cExtensions = 0;
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BOOL HmacCreateSecret = FALSE;
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// RP Information
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WEBAUTHN_RP_ENTITY_INFORMATION rpInfo = {
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WEBAUTHN_RP_ENTITY_INFORMATION_CURRENT_VERSION, aInfo.RpId().get(),
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nullptr, nullptr};
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// User Information
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WEBAUTHN_USER_ENTITY_INFORMATION userInfo = {
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WEBAUTHN_USER_ENTITY_INFORMATION_CURRENT_VERSION,
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0,
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nullptr,
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nullptr,
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nullptr,
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nullptr};
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// Client Data
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WEBAUTHN_CLIENT_DATA WebAuthNClientData = {
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WEBAUTHN_CLIENT_DATA_CURRENT_VERSION,
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(DWORD)aInfo.ClientDataJSON().Length(),
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(BYTE*)(aInfo.ClientDataJSON().get()), WEBAUTHN_HASH_ALGORITHM_SHA_256};
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// Algorithms
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nsTArray<WEBAUTHN_COSE_CREDENTIAL_PARAMETER> coseParams;
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// User Verification Requirement
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DWORD winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_ANY;
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// Attachment
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DWORD winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_ANY;
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// Resident Key
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BOOL winRequireResidentKey = FALSE;
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// AttestationConveyance
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DWORD winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_ANY;
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if (aInfo.Extra().isSome()) {
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const auto& extra = aInfo.Extra().ref();
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rpInfo.pwszName = extra.Rp().Name().get();
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rpInfo.pwszIcon = extra.Rp().Icon().get();
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userInfo.cbId = static_cast<DWORD>(extra.User().Id().Length());
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userInfo.pbId = const_cast<unsigned char*>(extra.User().Id().Elements());
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userInfo.pwszName = extra.User().Name().get();
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userInfo.pwszIcon = extra.User().Icon().get();
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userInfo.pwszDisplayName = extra.User().DisplayName().get();
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for (const auto& coseAlg : extra.coseAlgs()) {
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WEBAUTHN_COSE_CREDENTIAL_PARAMETER coseAlgorithm = {
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WEBAUTHN_COSE_CREDENTIAL_PARAMETER_CURRENT_VERSION,
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WEBAUTHN_CREDENTIAL_TYPE_PUBLIC_KEY, coseAlg.alg()};
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coseParams.AppendElement(coseAlgorithm);
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}
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const auto& sel = extra.AuthenticatorSelection();
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const nsString& userVerificationRequirement =
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sel.userVerificationRequirement();
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// This mapping needs to be reviewed if values are added to the
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// UserVerificationRequirement enum.
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static_assert(MOZ_WEBAUTHN_ENUM_STRINGS_VERSION == 2);
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if (userVerificationRequirement.EqualsLiteral(
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MOZ_WEBAUTHN_USER_VERIFICATION_REQUIREMENT_REQUIRED)) {
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winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_REQUIRED;
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} else if (userVerificationRequirement.EqualsLiteral(
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MOZ_WEBAUTHN_USER_VERIFICATION_REQUIREMENT_PREFERRED)) {
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winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_PREFERRED;
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} else if (userVerificationRequirement.EqualsLiteral(
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MOZ_WEBAUTHN_RESIDENT_KEY_REQUIREMENT_DISCOURAGED)) {
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winUserVerificationReq =
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WEBAUTHN_USER_VERIFICATION_REQUIREMENT_DISCOURAGED;
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} else {
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winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_ANY;
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}
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if (sel.authenticatorAttachment().isSome()) {
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const nsString& authenticatorAttachment =
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sel.authenticatorAttachment().value();
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// This mapping needs to be reviewed if values are added to the
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// AuthenticatorAttachement enum.
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static_assert(MOZ_WEBAUTHN_ENUM_STRINGS_VERSION == 2);
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if (authenticatorAttachment.EqualsLiteral(
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MOZ_WEBAUTHN_AUTHENTICATOR_ATTACHMENT_PLATFORM)) {
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winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_PLATFORM;
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} else if (authenticatorAttachment.EqualsLiteral(
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MOZ_WEBAUTHN_AUTHENTICATOR_ATTACHMENT_CROSS_PLATFORM)) {
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winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_CROSS_PLATFORM;
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} else {
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winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_ANY;
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}
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}
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winRequireResidentKey = sel.requireResidentKey();
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// AttestationConveyance
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const nsString& attestation = extra.attestationConveyancePreference();
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// This mapping needs to be reviewed if values are added to the
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// AttestationConveyancePreference enum.
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static_assert(MOZ_WEBAUTHN_ENUM_STRINGS_VERSION == 2);
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if (attestation.EqualsLiteral(
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MOZ_WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_NONE)) {
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winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_NONE;
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} else if (attestation.EqualsLiteral(
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MOZ_WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_INDIRECT)) {
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winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_INDIRECT;
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} else if (attestation.EqualsLiteral(
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MOZ_WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_DIRECT)) {
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winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_DIRECT;
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} else {
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winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_ANY;
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}
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if (extra.Extensions().Length() >
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(int)(sizeof(rgExtension) / sizeof(rgExtension[0]))) {
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nsresult aError = NS_ERROR_DOM_INVALID_STATE_ERR;
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MaybeAbortRegister(aTransactionId, aError);
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return;
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}
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for (const WebAuthnExtension& ext : extra.Extensions()) {
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if (ext.type() == WebAuthnExtension::TWebAuthnExtensionHmacSecret) {
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HmacCreateSecret =
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ext.get_WebAuthnExtensionHmacSecret().hmacCreateSecret() == true;
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if (HmacCreateSecret) {
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rgExtension[cExtensions].pwszExtensionIdentifier =
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WEBAUTHN_EXTENSIONS_IDENTIFIER_HMAC_SECRET;
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rgExtension[cExtensions].cbExtension = sizeof(BOOL);
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rgExtension[cExtensions].pvExtension = &HmacCreateSecret;
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cExtensions++;
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}
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}
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}
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} else {
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userInfo.cbId = sizeof(BYTE);
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userInfo.pbId = &U2FUserId;
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WEBAUTHN_COSE_CREDENTIAL_PARAMETER coseAlgorithm = {
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WEBAUTHN_COSE_CREDENTIAL_PARAMETER_CURRENT_VERSION,
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WEBAUTHN_CREDENTIAL_TYPE_PUBLIC_KEY,
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WEBAUTHN_COSE_ALGORITHM_ECDSA_P256_WITH_SHA256};
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coseParams.AppendElement(coseAlgorithm);
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winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_CROSS_PLATFORM_U2F_V2;
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}
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WEBAUTHN_COSE_CREDENTIAL_PARAMETERS WebAuthNCredentialParameters = {
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static_cast<DWORD>(coseParams.Length()), coseParams.Elements()};
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// Exclude Credentials
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nsTArray<WEBAUTHN_CREDENTIAL_EX> excludeCredentials;
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WEBAUTHN_CREDENTIAL_EX* pExcludeCredentials = nullptr;
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nsTArray<WEBAUTHN_CREDENTIAL_EX*> excludeCredentialsPtrs;
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WEBAUTHN_CREDENTIAL_LIST excludeCredentialList = {0};
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WEBAUTHN_CREDENTIAL_LIST* pExcludeCredentialList = nullptr;
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for (auto& cred : aInfo.ExcludeList()) {
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uint8_t transports = cred.transports();
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DWORD winTransports = 0;
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if (transports & MOZ_WEBAUTHN_AUTHENTICATOR_TRANSPORT_ID_USB) {
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winTransports |= WEBAUTHN_CTAP_TRANSPORT_USB;
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}
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if (transports & MOZ_WEBAUTHN_AUTHENTICATOR_TRANSPORT_ID_NFC) {
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winTransports |= WEBAUTHN_CTAP_TRANSPORT_NFC;
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}
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if (transports & MOZ_WEBAUTHN_AUTHENTICATOR_TRANSPORT_ID_BLE) {
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winTransports |= WEBAUTHN_CTAP_TRANSPORT_BLE;
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}
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if (transports & MOZ_WEBAUTHN_AUTHENTICATOR_TRANSPORT_ID_INTERNAL) {
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winTransports |= WEBAUTHN_CTAP_TRANSPORT_INTERNAL;
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}
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WEBAUTHN_CREDENTIAL_EX credential = {
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WEBAUTHN_CREDENTIAL_EX_CURRENT_VERSION,
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static_cast<DWORD>(cred.id().Length()), (PBYTE)(cred.id().Elements()),
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WEBAUTHN_CREDENTIAL_TYPE_PUBLIC_KEY, winTransports};
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excludeCredentials.AppendElement(credential);
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}
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if (!excludeCredentials.IsEmpty()) {
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pExcludeCredentials = excludeCredentials.Elements();
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for (DWORD i = 0; i < excludeCredentials.Length(); i++) {
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excludeCredentialsPtrs.AppendElement(&pExcludeCredentials[i]);
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}
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excludeCredentialList.cCredentials = excludeCredentials.Length();
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excludeCredentialList.ppCredentials = excludeCredentialsPtrs.Elements();
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pExcludeCredentialList = &excludeCredentialList;
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}
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// MakeCredentialOptions
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WEBAUTHN_AUTHENTICATOR_MAKE_CREDENTIAL_OPTIONS WebAuthNCredentialOptions = {
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WEBAUTHN_AUTHENTICATOR_MAKE_CREDENTIAL_OPTIONS_VERSION_4,
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aInfo.TimeoutMS(),
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{0, NULL},
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{0, NULL},
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winAttachment,
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winRequireResidentKey,
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winUserVerificationReq,
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winAttestation,
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0, // Flags
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NULL, // CancellationId
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pExcludeCredentialList,
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WEBAUTHN_ENTERPRISE_ATTESTATION_NONE,
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WEBAUTHN_LARGE_BLOB_SUPPORT_NONE,
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FALSE, // PreferResidentKey
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};
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GUID cancellationId = {0};
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if (gWinWebauthnGetCancellationId(&cancellationId) == S_OK) {
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WebAuthNCredentialOptions.pCancellationId = &cancellationId;
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mCancellationIds.emplace(aTransactionId, &cancellationId);
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}
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if (cExtensions != 0) {
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WebAuthNCredentialOptions.Extensions.cExtensions = cExtensions;
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WebAuthNCredentialOptions.Extensions.pExtensions = rgExtension;
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}
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WEBAUTHN_CREDENTIAL_ATTESTATION* pWebAuthNCredentialAttestation = nullptr;
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// Bug 1518876: Get Window Handle from Content process for Windows WebAuthN
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// APIs
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HWND hWnd = GetForegroundWindow();
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HRESULT hr = gWinWebauthnMakeCredential(
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hWnd, &rpInfo, &userInfo, &WebAuthNCredentialParameters,
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&WebAuthNClientData, &WebAuthNCredentialOptions,
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&pWebAuthNCredentialAttestation);
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mCancellationIds.erase(aTransactionId);
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if (hr == S_OK) {
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nsTArray<uint8_t> credentialId;
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credentialId.AppendElements(pWebAuthNCredentialAttestation->pbCredentialId,
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pWebAuthNCredentialAttestation->cbCredentialId);
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nsTArray<uint8_t> authenticatorData;
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if (aInfo.Extra().isSome()) {
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authenticatorData.AppendElements(
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pWebAuthNCredentialAttestation->pbAuthenticatorData,
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pWebAuthNCredentialAttestation->cbAuthenticatorData);
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} else {
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PWEBAUTHN_COMMON_ATTESTATION attestation =
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reinterpret_cast<PWEBAUTHN_COMMON_ATTESTATION>(
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pWebAuthNCredentialAttestation->pvAttestationDecode);
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DWORD coseKeyOffset = 32 + // RPIDHash
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1 + // Flags
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4 + // Counter
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16 + // AAGuid
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2 + // Credential ID Length field
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pWebAuthNCredentialAttestation->cbCredentialId;
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// Hardcoding as couldn't finder decoder and it is an ECC key.
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DWORD xOffset = coseKeyOffset + 10;
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DWORD yOffset = coseKeyOffset + 45;
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// Authenticator Data length check.
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if (pWebAuthNCredentialAttestation->cbAuthenticatorData < yOffset + 32) {
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MaybeAbortRegister(aTransactionId, NS_ERROR_DOM_INVALID_STATE_ERR);
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}
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|
authenticatorData.AppendElement(0x05); // Reserved Byte
|
|
authenticatorData.AppendElement(0x04); // ECC Uncompressed Key
|
|
authenticatorData.AppendElements(
|
|
pWebAuthNCredentialAttestation->pbAuthenticatorData + xOffset,
|
|
32); // X Coordinate
|
|
authenticatorData.AppendElements(
|
|
pWebAuthNCredentialAttestation->pbAuthenticatorData + yOffset,
|
|
32); // Y Coordinate
|
|
authenticatorData.AppendElement(
|
|
pWebAuthNCredentialAttestation->cbCredentialId);
|
|
authenticatorData.AppendElements(
|
|
pWebAuthNCredentialAttestation->pbCredentialId,
|
|
pWebAuthNCredentialAttestation->cbCredentialId);
|
|
authenticatorData.AppendElements(attestation->pX5c->pbData,
|
|
attestation->pX5c->cbData);
|
|
authenticatorData.AppendElements(attestation->pbSignature,
|
|
attestation->cbSignature);
|
|
}
|
|
|
|
nsTArray<uint8_t> attObject;
|
|
if (winAttestation == WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_NONE) {
|
|
// Zero AAGuid
|
|
const uint8_t zeroGuid[16] = {0};
|
|
authenticatorData.ReplaceElementsAt(32 + 1 + 4 /*AAGuid offset*/, 16,
|
|
zeroGuid, 16);
|
|
|
|
CryptoBuffer authData;
|
|
authData.Assign(authenticatorData);
|
|
CryptoBuffer noneAttObj;
|
|
CBOREncodeNoneAttestationObj(authData, noneAttObj);
|
|
attObject.AppendElements(noneAttObj);
|
|
} else {
|
|
attObject.AppendElements(
|
|
pWebAuthNCredentialAttestation->pbAttestationObject,
|
|
pWebAuthNCredentialAttestation->cbAttestationObject);
|
|
}
|
|
|
|
nsTArray<WebAuthnExtensionResult> extensions;
|
|
|
|
if (pWebAuthNCredentialAttestation->dwVersion >=
|
|
WEBAUTHN_CREDENTIAL_ATTESTATION_VERSION_2) {
|
|
PCWEBAUTHN_EXTENSIONS pExtensionList =
|
|
&pWebAuthNCredentialAttestation->Extensions;
|
|
if (pExtensionList->cExtensions != 0 &&
|
|
pExtensionList->pExtensions != NULL) {
|
|
for (DWORD dwIndex = 0; dwIndex < pExtensionList->cExtensions;
|
|
dwIndex++) {
|
|
PWEBAUTHN_EXTENSION pExtension =
|
|
&pExtensionList->pExtensions[dwIndex];
|
|
if (pExtension->pwszExtensionIdentifier &&
|
|
(0 == _wcsicmp(pExtension->pwszExtensionIdentifier,
|
|
WEBAUTHN_EXTENSIONS_IDENTIFIER_HMAC_SECRET)) &&
|
|
pExtension->cbExtension == sizeof(BOOL)) {
|
|
BOOL* pCredentialCreatedWithHmacSecret =
|
|
(BOOL*)pExtension->pvExtension;
|
|
if (*pCredentialCreatedWithHmacSecret) {
|
|
extensions.AppendElement(WebAuthnExtensionResultHmacSecret(true));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
WebAuthnMakeCredentialResult result(aInfo.ClientDataJSON(), attObject,
|
|
credentialId, authenticatorData,
|
|
extensions);
|
|
|
|
Unused << mTransactionParent->SendConfirmRegister(aTransactionId, result);
|
|
ClearTransaction();
|
|
gWinWebauthnFreeCredentialAttestation(pWebAuthNCredentialAttestation);
|
|
|
|
} else {
|
|
PCWSTR errorName = gWinWebauthnGetErrorName(hr);
|
|
nsresult aError = NS_ERROR_DOM_ABORT_ERR;
|
|
|
|
if (_wcsicmp(errorName, L"InvalidStateError") == 0) {
|
|
aError = NS_ERROR_DOM_INVALID_STATE_ERR;
|
|
} else if (_wcsicmp(errorName, L"ConstraintError") == 0 ||
|
|
_wcsicmp(errorName, L"UnknownError") == 0) {
|
|
aError = NS_ERROR_DOM_UNKNOWN_ERR;
|
|
} else if (_wcsicmp(errorName, L"NotSupportedError") == 0) {
|
|
aError = NS_ERROR_DOM_INVALID_STATE_ERR;
|
|
} else if (_wcsicmp(errorName, L"NotAllowedError") == 0) {
|
|
aError = NS_ERROR_DOM_NOT_ALLOWED_ERR;
|
|
}
|
|
|
|
MaybeAbortRegister(aTransactionId, aError);
|
|
}
|
|
}
|
|
|
|
void WinWebAuthnManager::MaybeAbortRegister(const uint64_t& aTransactionId,
|
|
const nsresult& aError) {
|
|
AbortTransaction(aTransactionId, aError);
|
|
}
|
|
|
|
void WinWebAuthnManager::Sign(PWebAuthnTransactionParent* aTransactionParent,
|
|
const uint64_t& aTransactionId,
|
|
const WebAuthnGetAssertionInfo& aInfo) {
|
|
MOZ_LOG(gWinWebAuthnManagerLog, LogLevel::Debug, ("WinWebAuthNSign"));
|
|
|
|
ClearTransaction();
|
|
mTransactionParent = aTransactionParent;
|
|
|
|
// User Verification Requirement
|
|
DWORD winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_ANY;
|
|
|
|
// RPID
|
|
PCWSTR rpID = nullptr;
|
|
|
|
// Attachment
|
|
DWORD winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_ANY;
|
|
|
|
// AppId
|
|
BOOL bU2fAppIdUsed = FALSE;
|
|
BOOL* pbU2fAppIdUsed = nullptr;
|
|
PCWSTR winAppIdentifier = nullptr;
|
|
|
|
// Client Data
|
|
WEBAUTHN_CLIENT_DATA WebAuthNClientData = {
|
|
WEBAUTHN_CLIENT_DATA_CURRENT_VERSION,
|
|
(DWORD)aInfo.ClientDataJSON().Length(),
|
|
(BYTE*)(aInfo.ClientDataJSON().get()), WEBAUTHN_HASH_ALGORITHM_SHA_256};
|
|
|
|
if (aInfo.Extra().isSome()) {
|
|
const auto& extra = aInfo.Extra().ref();
|
|
|
|
for (const WebAuthnExtension& ext : extra.Extensions()) {
|
|
if (ext.type() == WebAuthnExtension::TWebAuthnExtensionAppId) {
|
|
winAppIdentifier =
|
|
ext.get_WebAuthnExtensionAppId().appIdentifier().get();
|
|
pbU2fAppIdUsed = &bU2fAppIdUsed;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// RPID
|
|
rpID = aInfo.RpId().get();
|
|
|
|
// User Verification Requirement
|
|
const nsString& userVerificationReq = extra.userVerificationRequirement();
|
|
// This mapping needs to be reviewed if values are added to the
|
|
// UserVerificationRequirement enum.
|
|
static_assert(MOZ_WEBAUTHN_ENUM_STRINGS_VERSION == 2);
|
|
if (userVerificationReq.EqualsLiteral(
|
|
MOZ_WEBAUTHN_USER_VERIFICATION_REQUIREMENT_REQUIRED)) {
|
|
winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_REQUIRED;
|
|
} else if (userVerificationReq.EqualsLiteral(
|
|
MOZ_WEBAUTHN_USER_VERIFICATION_REQUIREMENT_PREFERRED)) {
|
|
winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_PREFERRED;
|
|
} else if (userVerificationReq.EqualsLiteral(
|
|
MOZ_WEBAUTHN_RESIDENT_KEY_REQUIREMENT_DISCOURAGED)) {
|
|
winUserVerificationReq =
|
|
WEBAUTHN_USER_VERIFICATION_REQUIREMENT_DISCOURAGED;
|
|
} else {
|
|
winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_ANY;
|
|
}
|
|
} else {
|
|
rpID = aInfo.Origin().get();
|
|
winAppIdentifier = aInfo.RpId().get();
|
|
pbU2fAppIdUsed = &bU2fAppIdUsed;
|
|
winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_CROSS_PLATFORM_U2F_V2;
|
|
winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_DISCOURAGED;
|
|
}
|
|
|
|
// allow Credentials
|
|
nsTArray<WEBAUTHN_CREDENTIAL_EX> allowCredentials;
|
|
WEBAUTHN_CREDENTIAL_EX* pAllowCredentials = nullptr;
|
|
nsTArray<WEBAUTHN_CREDENTIAL_EX*> allowCredentialsPtrs;
|
|
WEBAUTHN_CREDENTIAL_LIST allowCredentialList = {0};
|
|
WEBAUTHN_CREDENTIAL_LIST* pAllowCredentialList = nullptr;
|
|
|
|
for (auto& cred : aInfo.AllowList()) {
|
|
uint8_t transports = cred.transports();
|
|
DWORD winTransports = 0;
|
|
if (transports & MOZ_WEBAUTHN_AUTHENTICATOR_TRANSPORT_ID_USB) {
|
|
winTransports |= WEBAUTHN_CTAP_TRANSPORT_USB;
|
|
}
|
|
if (transports & MOZ_WEBAUTHN_AUTHENTICATOR_TRANSPORT_ID_NFC) {
|
|
winTransports |= WEBAUTHN_CTAP_TRANSPORT_NFC;
|
|
}
|
|
if (transports & MOZ_WEBAUTHN_AUTHENTICATOR_TRANSPORT_ID_BLE) {
|
|
winTransports |= WEBAUTHN_CTAP_TRANSPORT_BLE;
|
|
}
|
|
if (transports & MOZ_WEBAUTHN_AUTHENTICATOR_TRANSPORT_ID_INTERNAL) {
|
|
winTransports |= WEBAUTHN_CTAP_TRANSPORT_INTERNAL;
|
|
}
|
|
|
|
WEBAUTHN_CREDENTIAL_EX credential = {
|
|
WEBAUTHN_CREDENTIAL_EX_CURRENT_VERSION,
|
|
static_cast<DWORD>(cred.id().Length()), (PBYTE)(cred.id().Elements()),
|
|
WEBAUTHN_CREDENTIAL_TYPE_PUBLIC_KEY, winTransports};
|
|
allowCredentials.AppendElement(credential);
|
|
}
|
|
|
|
if (allowCredentials.Length()) {
|
|
pAllowCredentials = allowCredentials.Elements();
|
|
for (DWORD i = 0; i < allowCredentials.Length(); i++) {
|
|
allowCredentialsPtrs.AppendElement(&pAllowCredentials[i]);
|
|
}
|
|
allowCredentialList.cCredentials = allowCredentials.Length();
|
|
allowCredentialList.ppCredentials = allowCredentialsPtrs.Elements();
|
|
pAllowCredentialList = &allowCredentialList;
|
|
}
|
|
|
|
WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS WebAuthNAssertionOptions = {
|
|
WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS_CURRENT_VERSION,
|
|
aInfo.TimeoutMS(),
|
|
{0, NULL},
|
|
{0, NULL},
|
|
winAttachment,
|
|
winUserVerificationReq,
|
|
0, // dwFlags
|
|
winAppIdentifier,
|
|
pbU2fAppIdUsed,
|
|
nullptr, // pCancellationId
|
|
pAllowCredentialList,
|
|
};
|
|
|
|
GUID cancellationId = {0};
|
|
if (gWinWebauthnGetCancellationId(&cancellationId) == S_OK) {
|
|
WebAuthNAssertionOptions.pCancellationId = &cancellationId;
|
|
mCancellationIds.emplace(aTransactionId, &cancellationId);
|
|
}
|
|
|
|
PWEBAUTHN_ASSERTION pWebAuthNAssertion = nullptr;
|
|
|
|
// Bug 1518876: Get Window Handle from Content process for Windows WebAuthN
|
|
// APIs
|
|
HWND hWnd = GetForegroundWindow();
|
|
|
|
HRESULT hr =
|
|
gWinWebauthnGetAssertion(hWnd, rpID, &WebAuthNClientData,
|
|
&WebAuthNAssertionOptions, &pWebAuthNAssertion);
|
|
|
|
mCancellationIds.erase(aTransactionId);
|
|
|
|
if (hr == S_OK) {
|
|
nsTArray<uint8_t> signature;
|
|
if (aInfo.Extra().isSome()) {
|
|
signature.AppendElements(pWebAuthNAssertion->pbSignature,
|
|
pWebAuthNAssertion->cbSignature);
|
|
} else {
|
|
// AuthenticatorData Length check.
|
|
// First 32 bytes: RPID Hash
|
|
// Next 1 byte: Flags
|
|
// Next 4 bytes: Counter
|
|
if (pWebAuthNAssertion->cbAuthenticatorData < 32 + 1 + 4) {
|
|
MaybeAbortRegister(aTransactionId, NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
}
|
|
|
|
signature.AppendElement(0x01); // User Presence bit
|
|
signature.AppendElements(pWebAuthNAssertion->pbAuthenticatorData +
|
|
32 + // RPID Hash length
|
|
1, // Flags
|
|
4); // Counter length
|
|
signature.AppendElements(pWebAuthNAssertion->pbSignature,
|
|
pWebAuthNAssertion->cbSignature);
|
|
}
|
|
|
|
nsTArray<uint8_t> keyHandle;
|
|
keyHandle.AppendElements(pWebAuthNAssertion->Credential.pbId,
|
|
pWebAuthNAssertion->Credential.cbId);
|
|
|
|
nsTArray<uint8_t> userHandle;
|
|
userHandle.AppendElements(pWebAuthNAssertion->pbUserId,
|
|
pWebAuthNAssertion->cbUserId);
|
|
|
|
nsTArray<uint8_t> authenticatorData;
|
|
authenticatorData.AppendElements(pWebAuthNAssertion->pbAuthenticatorData,
|
|
pWebAuthNAssertion->cbAuthenticatorData);
|
|
|
|
nsTArray<WebAuthnExtensionResult> extensions;
|
|
|
|
if (pbU2fAppIdUsed && *pbU2fAppIdUsed) {
|
|
extensions.AppendElement(WebAuthnExtensionResultAppId(true));
|
|
}
|
|
|
|
WebAuthnGetAssertionResult result(aInfo.ClientDataJSON(), keyHandle,
|
|
signature, authenticatorData, extensions,
|
|
signature, userHandle);
|
|
|
|
Unused << mTransactionParent->SendConfirmSign(aTransactionId, result);
|
|
ClearTransaction();
|
|
|
|
gWinWebauthnFreeAssertion(pWebAuthNAssertion);
|
|
|
|
} else {
|
|
PCWSTR errorName = gWinWebauthnGetErrorName(hr);
|
|
nsresult aError = NS_ERROR_DOM_ABORT_ERR;
|
|
|
|
if (_wcsicmp(errorName, L"InvalidStateError") == 0) {
|
|
aError = NS_ERROR_DOM_INVALID_STATE_ERR;
|
|
} else if (_wcsicmp(errorName, L"ConstraintError") == 0 ||
|
|
_wcsicmp(errorName, L"UnknownError") == 0) {
|
|
aError = NS_ERROR_DOM_UNKNOWN_ERR;
|
|
} else if (_wcsicmp(errorName, L"NotSupportedError") == 0) {
|
|
aError = NS_ERROR_DOM_INVALID_STATE_ERR;
|
|
} else if (_wcsicmp(errorName, L"NotAllowedError") == 0) {
|
|
aError = NS_ERROR_DOM_NOT_ALLOWED_ERR;
|
|
}
|
|
|
|
MaybeAbortSign(aTransactionId, aError);
|
|
}
|
|
}
|
|
|
|
void WinWebAuthnManager::MaybeAbortSign(const uint64_t& aTransactionId,
|
|
const nsresult& aError) {
|
|
AbortTransaction(aTransactionId, aError);
|
|
}
|
|
|
|
void WinWebAuthnManager::Cancel(PWebAuthnTransactionParent* aParent,
|
|
const Tainted<uint64_t>& aTransactionId) {
|
|
if (mTransactionParent != aParent) {
|
|
return;
|
|
}
|
|
|
|
ClearTransaction();
|
|
|
|
auto iter = mCancellationIds.find(
|
|
MOZ_NO_VALIDATE(aTransactionId,
|
|
"Transaction ID is checked against a global container, "
|
|
"so an invalid entry can affect another origin's "
|
|
"request. This issue is filed as Bug 1696159."));
|
|
if (iter != mCancellationIds.end()) {
|
|
gWinWebauthnCancelCurrentOperation(iter->second);
|
|
}
|
|
}
|
|
|
|
} // namespace mozilla::dom
|