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/*
Miranda NG: the free IM client for Microsoft* Windows*
Copyright (c) 2012-18 Miranda NG team (https://miranda-ng.org)
all portions of this codebase are copyrighted to the people
listed in contributors.txt.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#pragma once
#define OWN_CACHED_CONTACT
#include <m_db_int.h>
#pragma warning (disable: 4200)
#define DBMODE_SHARED 0x0001
#define DBMODE_READONLY 0x0002
#define DBVT_ENCRYPTED 250
#define DBVT_UNENCRYPTED 251
#define MARKED_READ (DBEF_READ | DBEF_SENT)
#include <pshpack1.h>
#define DBHEADER_VERSION MAKELONG(1, 4)
#define DBHEADER_SIGNATURE 0x40DECADEu
struct DBHeader
{
uint32_t dwSignature;
uint32_t dwVersion; // database format version
};
struct DBContact
{
uint32_t dwEventCount; // number of events in the chain for this contact
MEVENT evFirstUnread;
uint64_t tsFirstUnread;
};
struct DBEvent
{
MCONTACT contactID; // a contact this event belongs to
uint32_t iModuleId; // offset to a DBModuleName struct of the name of
uint64_t timestamp; // seconds since 00:00:00 01/01/1970
uint32_t flags; // see m_database.h, db/event/add
uint16_t wEventType; // module-defined event type
uint16_t cbBlob; // number of bytes in the blob
bool __forceinline markedRead() const
{
return (flags & MARKED_READ) != 0;
}
};
struct DBEventSortingKey
{
MCONTACT hContact;
MEVENT hEvent;
uint64_t ts;
static int Compare(const MDBX_val* a, const MDBX_val* b);
};
struct DBSettingKey
{
MCONTACT hContact;
uint32_t dwModuleId;
char szSettingName[1];
static int Compare(const MDBX_val*, const MDBX_val*);
};
struct DBSettingValue
{
BYTE type;
union
{
BYTE bVal;
WORD wVal;
DWORD dwVal;
char szVal[];
struct
{
size_t nLength;
BYTE bVal[];
} blob;
};
};
#include <poppack.h>
struct DBCachedContact : public DBCachedContactBase
{
void Advance(MEVENT id, DBEvent &dbe);
void Snapshot();
void Revert();
DBContact dbc, tmp_dbc;
uint64_t t_tsLast;
MEVENT t_evLast;
};
struct EventItem
{
__forceinline EventItem(int _ts, MEVENT _id) :
ts(_ts), eventId(_id)
{}
uint64_t ts;
MEVENT eventId;
};
class CDbxMDBX : public MDatabaseCommon, public MZeroedObject
{
friend class MDBXEventCursor;
__forceinline MDBX_txn* StartTran() const
{
MDBX_txn *res = 0;
int rc = mdbx_txn_begin(m_env, nullptr, (m_bReadOnly) ? MDBX_RDONLY : 0, &res);
/* FIXME: throw an exception */
_ASSERT(rc == MDBX_SUCCESS);
UNREFERENCED_PARAMETER(rc);
return res;
}
void FillContacts(void);
int PrepareCheck(void);
void TouchFile(void);
void UpdateMenuItem(void);
////////////////////////////////////////////////////////////////////////////
// database stuff
TCHAR* m_tszProfileName;
bool m_safetyMode, m_bReadOnly, m_bShared, m_bEncrypted, m_bUsesPassword;
MDBX_env *m_env;
CMDBX_txn_ro m_txn_ro;
MDBX_dbi m_dbGlobal;
DBHeader m_header;
HANDLE hSettingChangeEvent, hContactDeletedEvent, hContactAddedEvent, hEventMarkedRead;
HWND m_hwndTimer; // for flushing database
DBCachedContact m_ccDummy; // dummy contact to serve a cache item for MCONTACT = 0
////////////////////////////////////////////////////////////////////////////
// settings
MDBX_dbi m_dbSettings;
MDBX_cursor *m_curSettings;
HANDLE hService, hHook;
////////////////////////////////////////////////////////////////////////////
// contacts
MDBX_dbi m_dbContacts;
MDBX_cursor *m_curContacts;
MCONTACT m_maxContactId;
void GatherContactHistory(MCONTACT hContact, LIST<EventItem> &items);
////////////////////////////////////////////////////////////////////////////
// events
MDBX_dbi m_dbEvents, m_dbEventsSort;
MDBX_cursor *m_curEvents, *m_curEventsSort;
MEVENT m_dwMaxEventId;
HANDLE hEventAddedEvent, hEventDeletedEvent, hEventFilterAddedEvent;
void FindNextUnread(const txn_ptr &_txn, DBCachedContact *cc, DBEventSortingKey &key2);
////////////////////////////////////////////////////////////////////////////
// modules
MDBX_dbi m_dbModules;
MDBX_cursor *m_curModules;
std::map<uint32_t, std::string> m_Modules;
int InitModules();
uint32_t GetModuleID(const char *szName);
char* GetModuleName(uint32_t dwId);
////////////////////////////////////////////////////////////////////////////
// encryption
MDBX_dbi m_dbCrypto;
int InitCrypt(void);
CRYPTO_PROVIDER* SelectProvider();
void InitDialogs();
public:
CDbxMDBX(const TCHAR *tszFileName, int mode);
virtual ~CDbxMDBX();
int Check(void);
void DBFlush(bool bForce = false);
int EnableEncryption(bool bEnable);
int Load();
int Map();
void StoreKey(void);
void SetPassword(const wchar_t *ptszPassword);
__forceinline LPSTR GetMenuTitle() const { return m_bUsesPassword ? (char*)LPGEN("Change/remove password") : (char*)LPGEN("Set password"); }
__forceinline bool isEncrypted() const { return m_bEncrypted; }
__forceinline bool usesPassword() const { return m_bUsesPassword; }
public:
STDMETHODIMP_(BOOL) IsRelational(void) { return TRUE; }
STDMETHODIMP_(void) SetCacheSafetyMode(BOOL);
STDMETHODIMP_(LONG) GetContactCount(void);
STDMETHODIMP_(LONG) DeleteContact(MCONTACT contactID);
STDMETHODIMP_(MCONTACT) AddContact(void);
STDMETHODIMP_(BOOL) IsDbContact(MCONTACT contactID);
STDMETHODIMP_(LONG) GetContactSize(void);
STDMETHODIMP_(LONG) GetEventCount(MCONTACT contactID);
STDMETHODIMP_(MEVENT) AddEvent(MCONTACT contactID, DBEVENTINFO *dbe);
STDMETHODIMP_(BOOL) DeleteEvent(MCONTACT contactID, MEVENT hDbEvent);
STDMETHODIMP_(LONG) GetBlobSize(MEVENT hDbEvent);
STDMETHODIMP_(BOOL) GetEvent(MEVENT hDbEvent, DBEVENTINFO *dbe);
STDMETHODIMP_(BOOL) MarkEventRead(MCONTACT contactID, MEVENT hDbEvent);
STDMETHODIMP_(MCONTACT) GetEventContact(MEVENT hDbEvent);
STDMETHODIMP_(MEVENT) FindFirstEvent(MCONTACT contactID);
STDMETHODIMP_(MEVENT) FindFirstUnreadEvent(MCONTACT contactID);
STDMETHODIMP_(MEVENT) FindLastEvent(MCONTACT contactID);
STDMETHODIMP_(MEVENT) FindNextEvent(MCONTACT contactID, MEVENT hDbEvent);
STDMETHODIMP_(MEVENT) FindPrevEvent(MCONTACT contactID, MEVENT hDbEvent);
STDMETHODIMP_(BOOL) EnumModuleNames(DBMODULEENUMPROC pFunc, void *pParam);
STDMETHODIMP_(BOOL) GetContactSettingWorker(MCONTACT contactID, LPCSTR szModule, LPCSTR szSetting, DBVARIANT *dbv, int isStatic);
STDMETHODIMP_(BOOL) WriteContactSetting(MCONTACT contactID, DBCONTACTWRITESETTING *dbcws);
STDMETHODIMP_(BOOL) DeleteContactSetting(MCONTACT contactID, LPCSTR szModule, LPCSTR szSetting);
STDMETHODIMP_(BOOL) EnumContactSettings(MCONTACT hContact, DBSETTINGENUMPROC pfnEnumProc, const char *szModule, void *param);
STDMETHODIMP_(BOOL) MetaMergeHistory(DBCachedContact *ccMeta, DBCachedContact *ccSub);
STDMETHODIMP_(BOOL) MetaSplitHistory(DBCachedContact *ccMeta, DBCachedContact *ccSub);
STDMETHODIMP_(BOOL) Compact();
public:
MICryptoEngine *m_crypto;
};
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