netwerk/dns/ODoHService.h

   1 /* -*- Mode: C++; tab-width: 8; 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 ODoHService_h_
   7 #define ODoHService_h_
   8
   9 #include "DNS.h"
  10 #include "mozilla/Atomics.h"
  11 #include "mozilla/Maybe.h"
  12 #include "nsString.h"
  13 #include "nsIDNSListener.h"
  14 #include "nsIObserver.h"
  15 #include "nsWeakReference.h"
  16
  17 namespace mozilla {
  18 namespace net {
  19
  20 class ODoH;
  21
  22 class ODoHService : public nsIDNSListener,
  23                     public nsIObserver,
  24                     public nsSupportsWeakReference {
  25  public:
  26   NS_DECL_THREADSAFE_ISUPPORTS
  27   NS_DECL_NSIDNSLISTENER
  28   NS_DECL_NSIOBSERVER
  29
  30   ODoHService();
  31   bool Init();
  32   bool Enabled() const;
  33
  34   const Maybe<nsTArray<ObliviousDoHConfig>>& ODoHConfigs();
  35   void AppendPendingODoHRequest(ODoH* aRequest);
  36   void GetRequestURI(nsACString& aResult);
  37   nsresult UpdateODoHConfig();
  38
  39  private:
  40   virtual ~ODoHService();
  41   nsresult ReadPrefs(const char* aName);
  42   void OnODoHPrefsChange();
  43   // Send a DNS query to reterive the ODoHConfig.
  44   void BuildODoHRequestURI();
  45
  46   Mutex mLock;
  47   Atomic<bool, Relaxed> mQueryODoHConfigInProgress;
  48   nsCString mODoHProxyURI;
  49   nsCString mODoHTargetHost;
  50   nsCString mODoHTargetPath;
  51   nsCString mODoHRequestURI;
  52   Maybe<nsTArray<ObliviousDoHConfig>> mODoHConfigs;
  53   nsTArray<RefPtr<ODoH>> mPendingRequests;
  54 };
  55
  56 extern ODoHService* gODoHService;
  57
  58 }  // namespace net
  59 }  // namespace mozilla
  60
  61 #endif