tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

Feature.cpp (1840B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "Feature.h"
      8 
      9 #include "mozilla/BasePrincipal.h"
     10 
     11 namespace mozilla::dom {
     12 
     13 void Feature::GetAllowList(nsTArray<nsCOMPtr<nsIPrincipal>>& aList) const {
     14  MOZ_ASSERT(mPolicy == eAllowList);
     15  aList.AppendElements(mAllowList);
     16 }
     17 
     18 bool Feature::Allows(nsIPrincipal* aPrincipal) const {
     19  if (mPolicy == eNone) {
     20    return false;
     21  }
     22 
     23  if (mPolicy == eAll) {
     24    return true;
     25  }
     26 
     27  return AllowListContains(aPrincipal);
     28 }
     29 
     30 Feature::Feature(const nsAString& aFeatureName)
     31    : mFeatureName(aFeatureName), mPolicy(eAllowList) {}
     32 
     33 Feature::~Feature() = default;
     34 
     35 const nsAString& Feature::Name() const { return mFeatureName; }
     36 
     37 void Feature::SetAllowsNone() {
     38  mPolicy = eNone;
     39  mAllowList.Clear();
     40 }
     41 
     42 bool Feature::AllowsNone() const { return mPolicy == eNone; }
     43 
     44 void Feature::SetAllowsAll() {
     45  mPolicy = eAll;
     46  mAllowList.Clear();
     47 }
     48 
     49 bool Feature::AllowsAll() const { return mPolicy == eAll; }
     50 
     51 void Feature::AppendToAllowList(nsIPrincipal* aPrincipal) {
     52  MOZ_ASSERT(aPrincipal);
     53 
     54  mPolicy = eAllowList;
     55  mAllowList.AppendElement(aPrincipal);
     56 }
     57 
     58 bool Feature::AllowListContains(nsIPrincipal* aPrincipal) const {
     59  MOZ_ASSERT(aPrincipal);
     60 
     61  if (!HasAllowList()) {
     62    return false;
     63  }
     64 
     65  for (nsIPrincipal* principal : mAllowList) {
     66    if (BasePrincipal::Cast(principal)->Subsumes(
     67            aPrincipal, BasePrincipal::ConsiderDocumentDomain)) {
     68      return true;
     69    }
     70  }
     71 
     72  return false;
     73 }
     74 
     75 bool Feature::HasAllowList() const { return mPolicy == eAllowList; }
     76 
     77 }  // namespace mozilla::dom