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/*
Miranda NG: the free IM client for Microsoft* Windows*
Copyright 2012-14 Miranda NG project,
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.
*/
#include "commonheaders.h"
DBSignature dbSignatureU = { "Miranda NG DBu", 0x1A }; // unencrypted database
DBSignature dbSignatureE = { "Miranda NG DBe", 0x1A }; // encrypted database
DBSignature dbSignatureIM = { "Miranda ICQ DB", 0x1A };
DBSignature dbSignatureSA = { "Miranda ICQ SA", 0x1A };
static int ModCompare(const ModuleName *mn1, const ModuleName *mn2)
{
return strcmp(mn1->name, mn2->name);
}
static int OfsCompare(const ModuleName *mn1, const ModuleName *mn2)
{
return (mn1->ofs - mn2->ofs);
}
static int stringCompare2(const char *p1, const char *p2)
{
return strcmp(p1, p2);
}
CDb3Base::CDb3Base(const TCHAR *tszFileName) :
m_hDbFile(INVALID_HANDLE_VALUE),
m_safetyMode(true),
m_bReadOnly(true),
m_lMods(50, ModCompare),
m_lOfs(50, OfsCompare),
m_lResidentSettings(50, stringCompare2)
{
m_tszProfileName = mir_tstrdup(tszFileName);
InitDbInstance(this);
InitializeCriticalSection(&m_csDbAccess);
SYSTEM_INFO sinf;
GetSystemInfo(&sinf);
m_ChunkSize = sinf.dwAllocationGranularity;
m_codePage = CallService(MS_LANGPACK_GETCODEPAGE, 0, 0);
m_hModHeap = HeapCreate(0, 0, 0);
}
CDb3Base::~CDb3Base()
{
// destroy modules
HeapDestroy(m_hModHeap);
// destroy map
KillTimer(NULL, m_flushBuffersTimerId);
if (m_pDbCache) {
FlushViewOfFile(m_pDbCache, 0);
UnmapViewOfFile(m_pDbCache);
}
if (m_crypto)
m_crypto->destroy();
if (m_hMap)
CloseHandle(m_hMap);
// update profile last modified time
if (!m_bReadOnly) {
DWORD bytesWritten;
SetFilePointer(m_hDbFile, 0, NULL, FILE_BEGIN);
WriteFile(m_hDbFile, &dbSignatureIM, 1, &bytesWritten, NULL);
}
CloseHandle(m_hDbFile);
DestroyHookableEvent(hContactDeletedEvent);
DestroyHookableEvent(hContactAddedEvent);
DestroyHookableEvent(hSettingChangeEvent);
DestroyHookableEvent(hEventAddedEvent);
DestroyHookableEvent(hEventDeletedEvent);
DestroyHookableEvent(hEventFilterAddedEvent);
DeleteCriticalSection(&m_csDbAccess);
DestroyDbInstance(this);
mir_free(m_tszProfileName);
}
int CDb3Base::Load(bool bSkipInit)
{
log0("DB logging running");
DWORD dummy = 0;
if (bSkipInit)
m_hDbFile = CreateFile(m_tszProfileName, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
else
m_hDbFile = CreateFile(m_tszProfileName, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_ALWAYS, 0, NULL);
if ( m_hDbFile == INVALID_HANDLE_VALUE )
return EGROKPRF_CANTREAD;
if (!ReadFile(m_hDbFile, &m_dbHeader, sizeof(m_dbHeader), &dummy, NULL)) {
CloseHandle(m_hDbFile);
return EGROKPRF_CANTREAD;
}
if (!bSkipInit) {
if (InitCache()) return 1;
if (InitModuleNames()) return 1;
m_bReadOnly = false;
m_bEncrypted = 0 == memcmp(m_dbHeader.signature, &dbSignatureE, sizeof(m_dbHeader.signature));
hContactDeletedEvent = CreateHookableEvent(ME_DB_CONTACT_DELETED);
hContactAddedEvent = CreateHookableEvent(ME_DB_CONTACT_ADDED);
hSettingChangeEvent = CreateHookableEvent(ME_DB_CONTACT_SETTINGCHANGED);
hEventAddedEvent = CreateHookableEvent(ME_DB_EVENT_ADDED);
hEventDeletedEvent = CreateHookableEvent(ME_DB_EVENT_DELETED);
hEventFilterAddedEvent = CreateHookableEvent(ME_DB_EVENT_FILTER_ADD);
}
return 0;
}
int CDb3Base::Create()
{
m_hDbFile = CreateFile(m_tszProfileName, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, 0, NULL);
return (m_hDbFile == INVALID_HANDLE_VALUE);
}
STDMETHODIMP_(void) CDb3Base::SetCacheSafetyMode(BOOL bIsSet)
{
{ mir_cslock lck(m_csDbAccess);
m_safetyMode = bIsSet != 0;
}
DBFlush(1);
}
void CDb3Base::EncodeCopyMemory(void *dst, void *src, size_t size)
{
MoveMemory(dst, src, size);
}
void CDb3Base::DecodeCopyMemory(void *dst, void *src, size_t size)
{
MoveMemory(dst, src, size);
}
void CDb3Base::EncodeDBWrite(DWORD ofs, void *src, int size)
{
DBWrite(ofs, src, size);
}
void CDb3Base::DecodeDBWrite(DWORD ofs, void *src, int size)
{
DBWrite(ofs, src, size);
}
///////////////////////////////////////////////////////////////////////////////
// MIDatabaseChecker
typedef int (CDb3Base::*CheckWorker)(int);
static CheckWorker Workers[6] =
{
&CDb3Base::WorkInitialChecks,
&CDb3Base::WorkModuleChain,
&CDb3Base::WorkUser,
&CDb3Base::WorkContactChain,
&CDb3Base::WorkAggressive,
&CDb3Base::WorkFinalTasks
};
int CDb3Base::Start(DBCHeckCallback *callback)
{
cb = callback;
return ERROR_SUCCESS;
}
int CDb3Base::CheckDb(int phase, int firstTime)
{
if (phase >= SIZEOF(Workers))
return ERROR_OUT_OF_PAPER;
return (this->*Workers[phase])(firstTime);
}
void CDb3Base::Destroy()
{
delete this;
}
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