зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
2.7 KiB
C++
85 строки
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_FeaturePolicyUtils_h
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#define mozilla_dom_FeaturePolicyUtils_h
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#include "nsString.h"
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#include <functional>
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#include "mozilla/dom/FeaturePolicy.h"
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namespace mozilla {
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namespace dom {
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class Document;
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class FeaturePolicyUtils final {
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public:
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enum FeaturePolicyValue {
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// Feature always allowed.
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eAll,
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// Feature allowed for documents that are same-origin with this one.
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eSelf,
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// Feature denied.
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eNone,
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};
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// This method returns true if aFeatureName is allowed for aDocument.
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// Use this method everywhere you need to check feature-policy directives.
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static bool IsFeatureAllowed(Document* aDocument,
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const nsAString& aFeatureName);
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// Returns true if aFeatureName is a known feature policy name.
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static bool IsSupportedFeature(const nsAString& aFeatureName);
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// Returns true if aFeatureName is a experimental feature policy name.
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static bool IsExperimentalFeature(const nsAString& aFeatureName);
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// Runs aCallback for each known feature policy, with the feature name as
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// argument.
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static void ForEachFeature(const std::function<void(const char*)>& aCallback);
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// Returns the default policy value for aFeatureName.
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static FeaturePolicyValue DefaultAllowListFeature(
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const nsAString& aFeatureName);
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// This method returns true if aFeatureName is in unsafe allowed "*" case.
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// We are in "unsafe" case when there is 'allow "*"' presents for an origin
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// that's not presented in the ancestor feature policy chain, via src, via
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// explicitly listed in allow, and not being the top-level origin.
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static bool IsFeatureUnsafeAllowedAll(Document* aDocument,
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const nsAString& aFeatureName);
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private:
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static void ReportViolation(Document* aDocument,
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const nsAString& aFeatureName);
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};
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} // namespace dom
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namespace ipc {
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class IProtocol;
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template <typename T>
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struct IPDLParamTraits;
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template <>
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struct IPDLParamTraits<mozilla::dom::FeaturePolicy*> {
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static void Write(IPC::Message* aMsg, IProtocol* aActor,
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mozilla::dom::FeaturePolicy* aParam);
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static bool Read(const IPC::Message* aMsg, PickleIterator* aIter,
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IProtocol* aActor,
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RefPtr<mozilla::dom::FeaturePolicy>* aResult);
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};
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} // namespace ipc
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} // namespace mozilla
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#endif // mozilla_dom_FeaturePolicyUtils_h
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