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-rw-r--r--toolkit/components/antitracking/TemporaryAccessGrantObserver.h87
1 files changed, 87 insertions, 0 deletions
diff --git a/toolkit/components/antitracking/TemporaryAccessGrantObserver.h b/toolkit/components/antitracking/TemporaryAccessGrantObserver.h
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+++ b/toolkit/components/antitracking/TemporaryAccessGrantObserver.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_temporaryaccessgrantobserver_h
+#define mozilla_temporaryaccessgrantobserver_h
+
+#include "mozilla/PrincipalHashKey.h"
+#include "nsCOMPtr.h"
+#include "nsHashKeys.h"
+#include "nsHashtablesFwd.h"
+#include "nsTHashMap.h"
+#include "nsINamed.h"
+#include "nsIObserver.h"
+#include "nsString.h"
+#include "PLDHashTable.h"
+
+class nsITimer;
+class TemporaryAccessGrantCacheKey;
+
+namespace mozilla {
+
+class PermissionManager;
+
+class TemporaryAccessGrantCacheKey : public PrincipalHashKey {
+ public:
+ typedef std::pair<nsCOMPtr<nsIPrincipal>, nsCString> KeyType;
+ typedef const KeyType* KeyTypePointer;
+
+ explicit TemporaryAccessGrantCacheKey(KeyTypePointer aKey)
+ : PrincipalHashKey(aKey->first), mType(aKey->second) {}
+ TemporaryAccessGrantCacheKey(TemporaryAccessGrantCacheKey&& aOther) = default;
+
+ ~TemporaryAccessGrantCacheKey() = default;
+
+ KeyType GetKey() const { return std::make_pair(mPrincipal, mType); }
+ bool KeyEquals(KeyTypePointer aKey) const {
+ return PrincipalHashKey::KeyEquals(aKey->first) && mType == aKey->second;
+ }
+
+ static KeyTypePointer KeyToPointer(KeyType& aKey) { return &aKey; }
+ static PLDHashNumber HashKey(KeyTypePointer aKey) {
+ if (!aKey) {
+ return 0;
+ }
+
+ return HashGeneric(PrincipalHashKey::HashKey(aKey->first),
+ HashString(aKey->second));
+ }
+
+ enum { ALLOW_MEMMOVE = true };
+
+ private:
+ nsCString mType;
+};
+
+class TemporaryAccessGrantObserver final : public nsIObserver, public nsINamed {
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIOBSERVER
+ NS_DECL_NSINAMED
+
+ static void Create(PermissionManager* aPM, nsIPrincipal* aPrincipal,
+ const nsACString& aType);
+
+ void SetTimer(nsITimer* aTimer);
+
+ private:
+ TemporaryAccessGrantObserver(PermissionManager* aPM, nsIPrincipal* aPrincipal,
+ const nsACString& aType);
+ ~TemporaryAccessGrantObserver() = default;
+
+ private:
+ using ObserversTable =
+ nsTHashMap<TemporaryAccessGrantCacheKey, nsCOMPtr<nsITimer>>;
+ static UniquePtr<ObserversTable> sObservers;
+ nsCOMPtr<nsITimer> mTimer;
+ RefPtr<PermissionManager> mPM;
+ nsCOMPtr<nsIPrincipal> mPrincipal;
+ nsCString mType;
+};
+
+} // namespace mozilla
+
+#endif // mozilla_temporaryaccessgrantobserver_h