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328 lines
10 KiB
C++
328 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 nsPermissionManager_h__
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#define nsPermissionManager_h__
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#include "nsIPermissionManager.h"
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#include "nsIObserver.h"
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#include "nsIObserverService.h"
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#include "nsWeakReference.h"
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#include "nsCOMPtr.h"
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#include "nsIFile.h"
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#include "nsTHashtable.h"
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#include "nsTArray.h"
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#include "nsString.h"
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#include "nsPermission.h"
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#include "nsHashKeys.h"
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#include "nsAutoPtr.h"
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#include "nsCOMArray.h"
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#include "nsDataHashtable.h"
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class nsIPermission;
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class nsIIDNService;
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class mozIStorageConnection;
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class mozIStorageAsyncStatement;
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////////////////////////////////////////////////////////////////////////////////
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class nsPermissionManager : public nsIPermissionManager,
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public nsIObserver,
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public nsSupportsWeakReference
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{
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public:
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class PermissionEntry
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{
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public:
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PermissionEntry(int64_t aID, uint32_t aType, uint32_t aPermission,
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uint32_t aExpireType, int64_t aExpireTime)
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: mID(aID)
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, mType(aType)
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, mPermission(aPermission)
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, mExpireType(aExpireType)
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, mExpireTime(aExpireTime)
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, mNonSessionPermission(aPermission)
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, mNonSessionExpireType(aExpireType)
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, mNonSessionExpireTime(aExpireTime)
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{}
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int64_t mID;
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uint32_t mType;
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uint32_t mPermission;
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uint32_t mExpireType;
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int64_t mExpireTime;
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uint32_t mNonSessionPermission;
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uint32_t mNonSessionExpireType;
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uint32_t mNonSessionExpireTime;
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};
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/**
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* PermissionKey is the key used by PermissionHashKey hash table.
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*
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* NOTE: It could be implementing nsIHashable but there is no reason to worry
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* with XPCOM interfaces while we don't need to.
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*/
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class PermissionKey
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{
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public:
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PermissionKey(nsIPrincipal* aPrincipal);
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PermissionKey(const nsACString& aHost,
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uint32_t aAppId,
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bool aIsInBrowserElement)
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: mHost(aHost)
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, mAppId(aAppId)
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, mIsInBrowserElement(aIsInBrowserElement)
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{
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}
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bool operator==(const PermissionKey& aKey) const {
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return mHost.Equals(aKey.mHost) &&
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mAppId == aKey.mAppId &&
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mIsInBrowserElement == aKey.mIsInBrowserElement;
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}
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PLDHashNumber GetHashCode() const {
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nsAutoCString str;
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str.Assign(mHost);
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str.AppendInt(mAppId);
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str.AppendInt(static_cast<int32_t>(mIsInBrowserElement));
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return mozilla::HashString(str);
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}
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(PermissionKey)
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nsCString mHost;
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uint32_t mAppId;
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bool mIsInBrowserElement;
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private:
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// Default ctor shouldn't be used.
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PermissionKey() MOZ_DELETE;
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// Dtor shouldn't be used outside of the class.
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~PermissionKey() {};
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};
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class PermissionHashKey : public nsRefPtrHashKey<PermissionKey>
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{
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public:
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PermissionHashKey(const PermissionKey* aPermissionKey)
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: nsRefPtrHashKey<PermissionKey>(aPermissionKey)
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{}
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PermissionHashKey(const PermissionHashKey& toCopy)
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: nsRefPtrHashKey<PermissionKey>(toCopy)
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, mPermissions(toCopy.mPermissions)
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{}
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bool KeyEquals(const PermissionKey* aKey) const
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{
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return *aKey == *GetKey();
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}
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static PLDHashNumber HashKey(const PermissionKey* aKey)
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{
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return aKey->GetHashCode();
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}
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// Force the hashtable to use the copy constructor when shuffling entries
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// around, otherwise the Auto part of our nsAutoTArray won't be happy!
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enum { ALLOW_MEMMOVE = false };
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inline nsTArray<PermissionEntry> & GetPermissions()
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{
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return mPermissions;
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}
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inline int32_t GetPermissionIndex(uint32_t aType) const
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{
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for (uint32_t i = 0; i < mPermissions.Length(); ++i)
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if (mPermissions[i].mType == aType)
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return i;
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return -1;
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}
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inline PermissionEntry GetPermission(uint32_t aType) const
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{
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for (uint32_t i = 0; i < mPermissions.Length(); ++i)
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if (mPermissions[i].mType == aType)
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return mPermissions[i];
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// unknown permission... return relevant data
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return PermissionEntry(-1, aType, nsIPermissionManager::UNKNOWN_ACTION,
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nsIPermissionManager::EXPIRE_NEVER, 0);
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}
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private:
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nsAutoTArray<PermissionEntry, 1> mPermissions;
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};
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// nsISupports
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NS_DECL_ISUPPORTS
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NS_DECL_NSIPERMISSIONMANAGER
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NS_DECL_NSIOBSERVER
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nsPermissionManager();
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virtual ~nsPermissionManager();
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static nsIPermissionManager* GetXPCOMSingleton();
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nsresult Init();
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// enums for AddInternal()
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enum OperationType {
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eOperationNone,
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eOperationAdding,
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eOperationRemoving,
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eOperationChanging
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};
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enum DBOperationType {
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eNoDBOperation,
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eWriteToDB
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};
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enum NotifyOperationType {
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eDontNotify,
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eNotify
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};
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nsresult AddInternal(nsIPrincipal* aPrincipal,
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const nsAFlatCString &aType,
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uint32_t aPermission,
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int64_t aID,
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uint32_t aExpireType,
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int64_t aExpireTime,
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NotifyOperationType aNotifyOperation,
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DBOperationType aDBOperation);
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/**
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* Initialize the "webapp-uninstall" observing.
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* Will create a nsPermissionManager instance if needed.
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* That way, we can prevent have nsPermissionManager created at startup just
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* to be able to clear data when an application is uninstalled.
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*/
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static void AppClearDataObserverInit();
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private:
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int32_t GetTypeIndex(const char *aTypeString,
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bool aAdd);
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PermissionHashKey* GetPermissionHashKey(const nsACString& aHost,
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uint32_t aAppId,
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bool aIsInBrowserElement,
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uint32_t aType,
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bool aExactHostMatch);
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nsresult CommonTestPermission(nsIPrincipal* aPrincipal,
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const char *aType,
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uint32_t *aPermission,
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bool aExactHostMatch,
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bool aIncludingSession);
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nsresult InitDB(bool aRemoveFile);
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nsresult CreateTable();
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nsresult Import();
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nsresult Read();
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void NotifyObserversWithPermission(const nsACString &aHost,
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uint32_t aAppId,
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bool aIsInBrowserElement,
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const nsCString &aType,
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uint32_t aPermission,
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uint32_t aExpireType,
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int64_t aExpireTime,
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const PRUnichar *aData);
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void NotifyObservers(nsIPermission *aPermission, const PRUnichar *aData);
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// Finalize all statements, close the DB and null it.
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// if aRebuildOnSuccess, reinitialize database
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void CloseDB(bool aRebuildOnSuccess = false);
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nsresult RemoveAllInternal(bool aNotifyObservers);
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nsresult RemoveAllFromMemory();
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nsresult NormalizeToACE(nsCString &aHost);
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static void UpdateDB(OperationType aOp,
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mozIStorageAsyncStatement* aStmt,
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int64_t aID,
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const nsACString& aHost,
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const nsACString& aType,
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uint32_t aPermission,
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uint32_t aExpireType,
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int64_t aExpireTime,
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uint32_t aAppId,
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bool aIsInBrowserElement);
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nsresult RemoveExpiredPermissionsForApp(uint32_t aAppId);
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/**
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* This struct has to be passed as an argument to GetPermissionsForApp.
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* |appId| and |browserOnly| have to be defined.
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* |permissions| will be filed with permissions that are related to the app.
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* If |browserOnly| is true, only permissions related to a browserElement will
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* be in |permissions|.
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*/
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struct GetPermissionsForAppStruct {
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uint32_t appId;
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bool browserOnly;
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nsCOMArray<nsIPermission> permissions;
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GetPermissionsForAppStruct() MOZ_DELETE;
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GetPermissionsForAppStruct(uint32_t aAppId, bool aBrowserOnly)
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: appId(aAppId)
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, browserOnly(aBrowserOnly)
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{}
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};
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/**
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* This method will return the list of all permissions that are related to a
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* specific app.
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* @param arg has to be an instance of GetPermissionsForAppStruct.
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*/
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static PLDHashOperator
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GetPermissionsForApp(PermissionHashKey* entry, void* arg);
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/**
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* This method restores an app's permissions when its session ends.
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*/
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static PLDHashOperator
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RemoveExpiredPermissionsForAppEnumerator(PermissionHashKey* entry,
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void* nonused);
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nsCOMPtr<nsIObserverService> mObserverService;
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nsCOMPtr<nsIIDNService> mIDNService;
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nsCOMPtr<mozIStorageConnection> mDBConn;
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nsCOMPtr<mozIStorageAsyncStatement> mStmtInsert;
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nsCOMPtr<mozIStorageAsyncStatement> mStmtDelete;
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nsCOMPtr<mozIStorageAsyncStatement> mStmtUpdate;
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nsTHashtable<PermissionHashKey> mPermissionTable;
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// a unique, monotonically increasing id used to identify each database entry
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int64_t mLargestID;
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// An array to store the strings identifying the different types.
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nsTArray<nsCString> mTypeArray;
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// A list of struct for counting applications
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struct ApplicationCounter {
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uint32_t mAppId;
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uint32_t mCounter;
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};
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nsTArray<ApplicationCounter> mAppIdRefcounts;
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// Initially, |false|. Set to |true| once shutdown has started, to avoid
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// reopening the database.
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bool mIsShuttingDown;
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friend class DeleteFromMozHostListener;
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friend class CloseDatabaseListener;
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};
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// {4F6B5E00-0C36-11d5-A535-0010A401EB10}
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#define NS_PERMISSIONMANAGER_CID \
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{ 0x4f6b5e00, 0xc36, 0x11d5, { 0xa5, 0x35, 0x0, 0x10, 0xa4, 0x1, 0xeb, 0x10 } }
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#endif /* nsPermissionManager_h__ */
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