tor-browser

The Tor Browser
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WebAuthnService.h (2914B)

      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 "AuthrsBridge_ffi.h"
      9 #include "mozilla/DataMutex.h"
     10 #include "mozilla/StaticPrefs_security.h"
     11 #include "mozilla/dom/WebAuthnPromiseHolder.h"
     12 #include "nsIWebAuthnService.h"
     13 
     14 #ifdef MOZ_WIDGET_ANDROID
     15 #  include "AndroidWebAuthnService.h"
     16 #endif
     17 
     18 #ifdef XP_MACOSX
     19 #  include "MacOSWebAuthnService.h"
     20 #endif
     21 
     22 #ifdef XP_WIN
     23 #  include "WinWebAuthnService.h"
     24 #endif
     25 
     26 namespace mozilla::dom {
     27 
     28 already_AddRefed<nsIWebAuthnService> NewWebAuthnService();
     29 
     30 class WebAuthnService final : public nsIWebAuthnService {
     31 public:
     32  NS_DECL_THREADSAFE_ISUPPORTS
     33  NS_DECL_NSIWEBAUTHNSERVICE
     34 
     35  WebAuthnService()
     36      : mTransactionState(Nothing(), "WebAuthnService::mTransactionState") {
     37    (void)authrs_service_constructor(getter_AddRefs(mAuthrsService));
     38 #if defined(XP_WIN)
     39    if (WinWebAuthnService::AreWebAuthNApisAvailable()) {
     40      mPlatformService = new WinWebAuthnService();
     41    } else {
     42      mPlatformService = mAuthrsService;
     43    }
     44 #elif defined(MOZ_WIDGET_ANDROID)
     45    mPlatformService = new AndroidWebAuthnService();
     46 #elif defined(XP_MACOSX)
     47    if (__builtin_available(macos 13.3, *)) {
     48      mPlatformService = NewMacOSWebAuthnServiceIfAvailable();
     49    }
     50    if (!mPlatformService) {
     51      mPlatformService = mAuthrsService;
     52    }
     53 #else
     54    mPlatformService = mAuthrsService;
     55 #endif
     56  }
     57 
     58 private:
     59  ~WebAuthnService() = default;
     60 
     61  struct TransactionState {
     62    nsCOMPtr<nsIWebAuthnService> service;
     63    uint64_t transactionId;
     64    Maybe<nsCOMPtr<nsIWebAuthnRegisterPromise>> parentRegisterPromise;
     65    Maybe<nsCOMPtr<nsIWebAuthnRegisterResult>> registerResult;
     66    MozPromiseRequestHolder<WebAuthnRegisterPromise> childRegisterRequest;
     67  };
     68  using TransactionStateMutex = DataMutex<Maybe<TransactionState>>;
     69  TransactionStateMutex mTransactionState;
     70 
     71  void ShowAttestationConsentPrompt(const nsString& aOrigin,
     72                                    uint64_t aTransactionId,
     73                                    uint64_t aBrowsingContextId);
     74  void ResetLocked(const TransactionStateMutex::AutoLock& aGuard);
     75 
     76  nsIWebAuthnService* DefaultService() {
     77    if (StaticPrefs::security_webauth_webauthn_enable_softtoken()) {
     78      return mAuthrsService;
     79    }
     80    return mPlatformService;
     81  }
     82 
     83  nsIWebAuthnService* AuthrsService() { return mAuthrsService; }
     84 
     85  nsIWebAuthnService* SelectedService() {
     86    auto guard = mTransactionState.Lock();
     87    if (guard->isSome()) {
     88      return guard->ref().service;
     89    }
     90    return DefaultService();
     91  }
     92 
     93  nsCOMPtr<nsIWebAuthnService> mAuthrsService;
     94  nsCOMPtr<nsIWebAuthnService> mPlatformService;
     95 };
     96 
     97 }  // namespace mozilla::dom
     98 
     99 #endif  // mozilla_dom_WebAuthnService_h_