Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #ifndef __nsRFPService_h__
       7             : #define __nsRFPService_h__
       8             : 
       9             : #include "mozilla/Atomics.h"
      10             : #include "nsIObserver.h"
      11             : 
      12             : #include "nsString.h"
      13             : 
      14             : // Defines regarding spoofed values of Navigator object. These spoofed values
      15             : // are returned when 'privacy.resistFingerprinting' is true.
      16             : #define SPOOFED_APPNAME    "Netscape"
      17             : #define SPOOFED_APPVERSION "5.0 (Windows)"
      18             : #define SPOOFED_OSCPU      "Windows NT 6.1"
      19             : #define SPOOFED_PLATFORM   "Win32"
      20             : 
      21             : #define LEGACY_BUILD_ID    "20100101"
      22             : 
      23             : namespace mozilla {
      24             : 
      25             : class nsRFPService final : public nsIObserver
      26             : {
      27             : public:
      28             :   NS_DECL_ISUPPORTS
      29             :   NS_DECL_NSIOBSERVER
      30             : 
      31             :   static nsRFPService* GetOrCreate();
      32          92 :   static bool IsResistFingerprintingEnabled()
      33             :   {
      34          92 :     return sPrivacyResistFingerprinting;
      35             :   }
      36             : 
      37             :   // The following Reduce methods can be called off main thread.
      38             :   static double ReduceTimePrecisionAsMSecs(double aTime);
      39             :   static double ReduceTimePrecisionAsUSecs(double aTime);
      40             :   static double ReduceTimePrecisionAsSecs(double aTime);
      41             : 
      42             : private:
      43             :   nsresult Init();
      44             : 
      45           3 :   nsRFPService() {}
      46             : 
      47           0 :   ~nsRFPService() {}
      48             : 
      49             :   void UpdatePref();
      50             :   void StartShutdown();
      51             : 
      52             :   static Atomic<bool, ReleaseAcquire> sPrivacyResistFingerprinting;
      53             : 
      54             :   nsCString mInitialTZValue;
      55             : };
      56             : 
      57             : } // mozilla namespace
      58             : 
      59             : #endif /* __nsRFPService_h__ */