dom/webauthn/WebAuthnService.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef mozilla_dom_WebAuthnService_h_
   6 #define mozilla_dom_WebAuthnService_h_
   7
   8 #include "nsIWebAuthnService.h"
   9 #include "AuthrsBridge_ffi.h"
  10 #include "mozilla/dom/WebAuthnPromiseHolder.h"
  11
  12 #ifdef MOZ_WIDGET_ANDROID
  13 #  include "AndroidWebAuthnService.h"
  14 #endif
  15
  16 #ifdef XP_MACOSX
  17 #  include "MacOSWebAuthnService.h"
  18 #endif
  19
  20 #ifdef XP_WIN
  21 #  include "WinWebAuthnService.h"
  22 #endif
  23
  24 namespace mozilla::dom {
  25
  26 already_AddRefed<nsIWebAuthnService> NewWebAuthnService();
  27
  28 class WebAuthnService final : public nsIWebAuthnService {
  29  public:
  30   NS_DECL_THREADSAFE_ISUPPORTS
  31   NS_DECL_NSIWEBAUTHNSERVICE
  32
  33   WebAuthnService()
  34       : mTransactionState(Nothing(), "WebAuthnService::mTransactionState") {
  35     Unused << authrs_service_constructor(getter_AddRefs(mAuthrsService));
  36 #if defined(XP_WIN)
  37     if (WinWebAuthnService::AreWebAuthNApisAvailable()) {
  38       mPlatformService = new WinWebAuthnService();
  39     } else {
  40       mPlatformService = mAuthrsService;
  41     }
  42 #elif defined(MOZ_WIDGET_ANDROID)
  43     mPlatformService = new AndroidWebAuthnService();
  44 #elif defined(XP_MACOSX)
  45     if (__builtin_available(macos 13.3, *)) {
  46       mPlatformService = NewMacOSWebAuthnServiceIfAvailable();
  47     }
  48     if (!mPlatformService) {
  49       mPlatformService = mAuthrsService;
  50     }
  51 #else
  52     mPlatformService = mAuthrsService;
  53 #endif
  54   }
  55
  56  private:
  57   ~WebAuthnService() = default;
  58
  59   struct TransactionState {
  60     nsCOMPtr<nsIWebAuthnService> service;
  61     uint64_t transactionId;
  62     Maybe<nsCOMPtr<nsIWebAuthnRegisterPromise>> parentRegisterPromise;
  63     Maybe<nsCOMPtr<nsIWebAuthnRegisterResult>> registerResult;
  64     MozPromiseRequestHolder<WebAuthnRegisterPromise> childRegisterRequest;
  65   };
  66   using TransactionStateMutex = DataMutex<Maybe<TransactionState>>;
  67   TransactionStateMutex mTransactionState;
  68
  69   void ShowAttestationConsentPrompt(const nsString& aOrigin,
  70                                     uint64_t aTransactionId,
  71                                     uint64_t aBrowsingContextId);
  72   void ResetLocked(const TransactionStateMutex::AutoLock& aGuard);
  73
  74   nsIWebAuthnService* DefaultService() {
  75     if (StaticPrefs::security_webauth_webauthn_enable_softtoken()) {
  76       return mAuthrsService;
  77     }
  78     return mPlatformService;
  79   }
  80
  81   nsIWebAuthnService* AuthrsService() { return mAuthrsService; }
  82
  83   nsIWebAuthnService* SelectedService() {
  84     auto guard = mTransactionState.Lock();
  85     if (guard->isSome()) {
  86       return guard->ref().service;
  87     }
  88     return DefaultService();
  89   }
  90
  91   nsCOMPtr<nsIWebAuthnService> mAuthrsService;
  92   nsCOMPtr<nsIWebAuthnService> mPlatformService;
  93 };
  94
  95 }  // namespace mozilla::dom
  96
  97 #endif  // mozilla_dom_WebAuthnService_h_