gecko-dev/extensions/cookie/nsPermissionManager.h

243 lines
7.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Michiel van Leeuwen (mvl@exedo.nl)
* Daniel Witte (dwitte@stanford.edu)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsPermissionManager_h__
#define nsPermissionManager_h__
#include "nsIPermissionManager.h"
#include "nsIObserver.h"
#include "nsIObserverService.h"
#include "nsWeakReference.h"
#include "nsCOMPtr.h"
#include "nsIFile.h"
#include "nsTHashtable.h"
#include "nsTArray.h"
#include "nsString.h"
class nsIPermission;
class nsIIDNService;
class mozIStorageConnection;
class mozIStorageStatement;
////////////////////////////////////////////////////////////////////////////////
class nsPermissionEntry
{
public:
nsPermissionEntry(PRUint32 aType, PRUint32 aPermission, PRInt64 aID)
: mType(aType)
, mPermission(aPermission)
, mID(aID) {}
PRUint32 mType;
PRUint32 mPermission;
PRInt64 mID;
};
class nsHostEntry : public PLDHashEntryHdr
{
public:
// Hash methods
typedef const char* KeyType;
typedef const char* KeyTypePointer;
nsHostEntry(const char* aHost);
nsHostEntry(const nsHostEntry& toCopy);
~nsHostEntry()
{
}
KeyType GetKey() const
{
return mHost;
}
PRBool KeyEquals(KeyTypePointer aKey) const
{
return !strcmp(mHost, aKey);
}
static KeyTypePointer KeyToPointer(KeyType aKey)
{
return aKey;
}
static PLDHashNumber HashKey(KeyTypePointer aKey)
{
// PL_DHashStringKey doesn't use the table parameter, so we can safely
// pass nsnull
return PL_DHashStringKey(nsnull, aKey);
}
// force the hashtable to use the copy constructor when shuffling entries
// around, otherwise the Auto part of our nsAutoTArray won't be happy!
enum { ALLOW_MEMMOVE = PR_FALSE };
// Permissions methods
inline const nsDependentCString GetHost() const
{
return nsDependentCString(mHost);
}
inline nsTArray<nsPermissionEntry> & GetPermissions()
{
return mPermissions;
}
inline PRInt32 GetPermissionIndex(PRUint32 aType) const
{
for (PRUint32 i = 0; i < mPermissions.Length(); ++i)
if (mPermissions[i].mType == aType)
return i;
return -1;
}
inline PRUint32 GetPermission(PRUint32 aType) const
{
for (PRUint32 i = 0; i < mPermissions.Length(); ++i)
if (mPermissions[i].mType == aType)
return mPermissions[i].mPermission;
return nsIPermissionManager::UNKNOWN_ACTION;
}
private:
const char *mHost;
nsAutoTArray<nsPermissionEntry, 1> mPermissions;
};
class nsPermissionManager : public nsIPermissionManager,
public nsIObserver,
public nsSupportsWeakReference
{
public:
// nsISupports
NS_DECL_ISUPPORTS
NS_DECL_NSIPERMISSIONMANAGER
NS_DECL_NSIOBSERVER
nsPermissionManager();
virtual ~nsPermissionManager();
nsresult Init();
private:
// enums for AddInternal()
enum OperationType {
eOperationNone,
eOperationAdding,
eOperationRemoving,
eOperationChanging
};
enum DBOperationType {
eNoDBOperation,
eWriteToDB
};
enum NotifyOperationType {
eDontNotify,
eNotify
};
nsresult AddInternal(const nsAFlatCString &aHost,
const nsAFlatCString &aType,
PRUint32 aPermission,
PRInt64 aID,
NotifyOperationType aNotifyOperation,
DBOperationType aDBOperation);
PRInt32 GetTypeIndex(const char *aTypeString,
PRBool aAdd);
nsHostEntry *GetHostEntry(const nsAFlatCString &aHost,
PRUint32 aType,
PRBool aExactHostMatch);
nsresult CommonTestPermission(nsIURI *aURI,
const char *aType,
PRUint32 *aPermission,
PRBool aExactHostMatch);
nsresult InitDB();
nsresult CreateTable();
nsresult Import();
nsresult Read();
void NotifyObserversWithPermission(const nsACString &aHost,
const nsCString &aType,
PRUint32 aPermission,
const PRUnichar *aData);
void NotifyObservers(nsIPermission *aPermission, const PRUnichar *aData);
nsresult RemoveAllInternal();
nsresult RemoveAllFromMemory();
nsresult NormalizeToACE(nsCString &aHost);
nsresult GetHost(nsIURI *aURI, nsACString &aResult);
static void UpdateDB(OperationType aOp,
mozIStorageStatement* aStmt,
PRInt64 aID,
const nsACString &aHost,
const nsACString &aType,
PRUint32 aPermission);
nsCOMPtr<nsIObserverService> mObserverService;
nsCOMPtr<nsIIDNService> mIDNService;
nsCOMPtr<mozIStorageConnection> mDBConn;
nsCOMPtr<mozIStorageStatement> mStmtInsert;
nsCOMPtr<mozIStorageStatement> mStmtDelete;
nsCOMPtr<mozIStorageStatement> mStmtUpdate;
nsTHashtable<nsHostEntry> mHostTable;
// a unique, monotonically increasing id used to identify each database entry
PRInt64 mLargestID;
// An array to store the strings identifying the different types.
nsTArray<nsCString> mTypeArray;
};
// {4F6B5E00-0C36-11d5-A535-0010A401EB10}
#define NS_PERMISSIONMANAGER_CID \
{ 0x4f6b5e00, 0xc36, 0x11d5, { 0xa5, 0x35, 0x0, 0x10, 0xa4, 0x1, 0xeb, 0x10 } }
#endif /* nsPermissionManager_h__ */