gecko/extensions/cookie/nsPermissionManager.h
2012-07-30 17:20:58 +03:00

237 lines
6.7 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 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"
#include "nsPermission.h"
class nsIPermission;
class nsIIDNService;
class mozIStorageConnection;
class mozIStorageStatement;
////////////////////////////////////////////////////////////////////////////////
class nsPermissionEntry
{
public:
nsPermissionEntry(PRUint32 aType, PRUint32 aPermission, PRInt64 aID,
PRUint32 aExpireType, PRInt64 aExpireTime)
: mType(aType)
, mPermission(aPermission)
, mID(aID)
, mExpireType(aExpireType)
, mExpireTime(aExpireTime) {}
PRUint32 mType;
PRUint32 mPermission;
PRInt64 mID;
PRUint32 mExpireType;
PRInt64 mExpireTime;
};
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;
}
bool 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 nullptr
return PL_DHashStringKey(nullptr, 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 = 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 nsPermissionEntry GetPermission(PRUint32 aType) const
{
for (PRUint32 i = 0; i < mPermissions.Length(); ++i)
if (mPermissions[i].mType == aType)
return mPermissions[i];
// unknown permission... return relevant data
nsPermissionEntry unk = nsPermissionEntry(aType, nsIPermissionManager::UNKNOWN_ACTION,
-1, nsIPermissionManager::EXPIRE_NEVER, 0);
return unk;
}
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();
static nsIPermissionManager* GetXPCOMSingleton();
nsresult Init();
// 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,
PRUint32 aExpireType,
PRInt64 aExpireTime,
NotifyOperationType aNotifyOperation,
DBOperationType aDBOperation);
private:
PRInt32 GetTypeIndex(const char *aTypeString,
bool aAdd);
nsHostEntry *GetHostEntry(const nsAFlatCString &aHost,
PRUint32 aType,
bool aExactHostMatch);
nsresult CommonTestPermission(nsIURI *aURI,
const char *aType,
PRUint32 *aPermission,
bool aExactHostMatch);
nsresult InitDB(bool aRemoveFile);
nsresult CreateTable();
nsresult Import();
nsresult Read();
void NotifyObserversWithPermission(const nsACString &aHost,
const nsCString &aType,
PRUint32 aPermission,
PRUint32 aExpireType,
PRInt64 aExpireTime,
const PRUnichar *aData);
void NotifyObservers(nsIPermission *aPermission, const PRUnichar *aData);
// Finalize all statements, close the DB and null it.
// if aRebuildOnSuccess, reinitialize database
void CloseDB(bool aRebuildOnSuccess = false);
nsresult RemoveAllInternal(bool aNotifyObservers);
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,
PRUint32 aExpireType,
PRInt64 aExpireTime);
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;
// Initially, |false|. Set to |true| once shutdown has started, to avoid
// reopening the database.
bool mIsShuttingDown;
friend class DeleteFromMozHostListener;
friend class CloseDatabaseListener;
};
// {4F6B5E00-0C36-11d5-A535-0010A401EB10}
#define NS_PERMISSIONMANAGER_CID \
{ 0x4f6b5e00, 0xc36, 0x11d5, { 0xa5, 0x35, 0x0, 0x10, 0xa4, 0x1, 0xeb, 0x10 } }
#endif /* nsPermissionManager_h__ */