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/*
Miranda NG: the free IM client for Microsoft* Windows*
Copyright (C) 2012-24 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.
*/
#include "stdafx.h"
void CDbxMDBX::FillSettings()
{
cursor_ptr pCursor(StartTran(), m_dbSettings);
DBSettingKey keyVal = {};
MDBX_val key = { &keyVal, sizeof(keyVal) }, data;
for (int res = mdbx_cursor_get(pCursor, &key, &data, MDBX_SET_RANGE); res == MDBX_SUCCESS; res = mdbx_cursor_get(pCursor, &key, &data, MDBX_NEXT)) {
const DBSettingKey *pKey = (const DBSettingKey*)key.iov_base;
auto *szModule = GetModuleName(pKey->dwModuleId);
if (szModule == nullptr)
continue;
const uint8_t *pBlob = (const uint8_t*)data.iov_base;
if (*pBlob == DBVT_DELETED)
continue;
size_t settingNameLen = strlen(pKey->szSettingName);
size_t moduleNameLen = strlen(szModule);
char *szCachedSettingName = m_cache->GetCachedSetting(szModule, pKey->szSettingName, moduleNameLen, settingNameLen);
DBVARIANT *dbv = m_cache->GetCachedValuePtr(pKey->hContact, szCachedSettingName, 1);
if (dbv == nullptr) // garbage! a setting for removed/non-existent contact
continue;
uint16_t varLen;
uint8_t iType = dbv->type = pBlob[0]; pBlob++;
switch (iType) {
case DBVT_BYTE: dbv->bVal = *pBlob; break;
case DBVT_WORD: dbv->wVal = *(uint16_t*)pBlob; break;
case DBVT_DWORD: dbv->dVal = *(uint32_t*)pBlob; break;
case DBVT_UTF8:
case DBVT_ASCIIZ:
varLen = *(uint16_t*)pBlob;
pBlob += 2;
dbv->pszVal = (char*)mir_alloc(1 + varLen);
memcpy(dbv->pszVal, pBlob, varLen);
dbv->pszVal[varLen] = 0;
break;
case DBVT_BLOB:
case DBVT_ENCRYPTED:
varLen = *(uint16_t*)pBlob;
pBlob += 2;
dbv->pbVal = (uint8_t *)mir_alloc(varLen);
memcpy(dbv->pbVal, pBlob, varLen);
dbv->cpbVal = varLen;
break;
}
}
FillContactSettings();
}
/////////////////////////////////////////////////////////////////////////////////////////
BOOL CDbxMDBX::WriteContactSettingWorker(MCONTACT contactID, DBCONTACTWRITESETTING &dbcws)
{
size_t settingNameLen = mir_strlen(dbcws.szSetting);
// write down a setting to database
DBSettingKey *keyVal = (DBSettingKey *)_alloca(sizeof(DBSettingKey) + settingNameLen);
keyVal->hContact = contactID;
keyVal->dwModuleId = GetModuleID(dbcws.szModule);
memcpy(&keyVal->szSettingName, dbcws.szSetting, settingNameLen + 1);
MDBX_val key = { keyVal, sizeof(DBSettingKey) + settingNameLen }, data;
switch (dbcws.value.type) {
case DBVT_BYTE: data.iov_len = 2; break;
case DBVT_WORD: data.iov_len = 3; break;
case DBVT_DWORD: data.iov_len = 5; break;
case DBVT_ASCIIZ:
case DBVT_UTF8:
data.iov_len = 3 + dbcws.value.cchVal; break;
case DBVT_BLOB:
case DBVT_ENCRYPTED:
data.iov_len = 3 + dbcws.value.cpbVal; break;
default:
return 1;
}
data.iov_base = _alloca(data.iov_len);
uint8_t *pBlob = (uint8_t*)data.iov_base;
*pBlob++ = dbcws.value.type;
switch (dbcws.value.type) {
case DBVT_BYTE: *pBlob = dbcws.value.bVal; break;
case DBVT_WORD: *(uint16_t*)pBlob = dbcws.value.wVal; break;
case DBVT_DWORD: *(uint32_t*)pBlob = dbcws.value.dVal; break;
case DBVT_ASCIIZ:
case DBVT_UTF8:
*(uint16_t*)pBlob = dbcws.value.cchVal;
pBlob += 2;
memcpy(pBlob, dbcws.value.pszVal, dbcws.value.cchVal);
break;
case DBVT_BLOB:
case DBVT_ENCRYPTED:
*(uint16_t*)pBlob = dbcws.value.cpbVal;
pBlob += 2;
memcpy(pBlob, dbcws.value.pbVal, dbcws.value.cpbVal);
}
{
txn_ptr trnlck(this);
if (mdbx_put(trnlck, m_dbSettings, &key, &data, MDBX_UPSERT) != MDBX_SUCCESS)
return 1;
}
DBFlush();
return 0;
}
BOOL CDbxMDBX::DeleteContactSetting(MCONTACT contactID, const char *szModule, const char *szSetting)
{
if (!szModule || !szSetting)
return 1;
size_t settingNameLen = strlen(szSetting);
size_t moduleNameLen = strlen(szModule);
{
mir_cslock lck(m_csDbAccess);
char *szCachedSettingName = m_cache->GetCachedSetting(szModule, szSetting, moduleNameLen, settingNameLen);
// try to remove it from cache first.
// if there's nothing, don't try to remove a setting from database
auto *pSetting = m_cache->GetCachedValuePtr(contactID, szCachedSettingName, -1);
if (pSetting == nullptr)
return 1;
// if it's not a resident variable, delete it from database too
if (szCachedSettingName[-1] == 0) {
DBSettingKey *keyVal = (DBSettingKey*)_alloca(sizeof(DBSettingKey) + settingNameLen);
keyVal->hContact = contactID;
keyVal->dwModuleId = GetModuleID(szModule);
memcpy(&keyVal->szSettingName, szSetting, settingNameLen + 1);
txn_ptr trnlck(this);
MDBX_val key = { keyVal, sizeof(DBSettingKey) + settingNameLen };
if (mdbx_del(trnlck, m_dbSettings, &key, nullptr) != MDBX_SUCCESS)
return 1;
DBFlush();
}
}
// notify
DBCONTACTWRITESETTING dbcws = { 0 };
dbcws.szModule = szModule;
dbcws.szSetting = szSetting;
dbcws.value.type = DBVT_DELETED;
NotifyEventHooks(g_hevSettingChanged, contactID, (LPARAM)&dbcws);
return 0;
}
BOOL CDbxMDBX::EnumContactSettings(MCONTACT hContact, DBSETTINGENUMPROC pfnEnumProc, const char *szModule, void *param)
{
LIST<char> arKeys(100);
DBSettingKey keyVal = { hContact, GetModuleID(szModule), 0 };
MDBX_val key = { &keyVal, sizeof(keyVal) }, data;
{
cursor_ptr pCursor(StartTran(), m_dbSettings);
for (int res = mdbx_cursor_get(pCursor, &key, &data, MDBX_SET_RANGE); res == MDBX_SUCCESS; res = mdbx_cursor_get(pCursor, &key, &data, MDBX_NEXT)) {
const DBSettingKey *pKey = (const DBSettingKey*)key.iov_base;
if (pKey->hContact != hContact || pKey->dwModuleId != keyVal.dwModuleId)
break;
arKeys.insert((char*)pKey->szSettingName);
}
}
int result = -1;
for (auto &it : arKeys)
result = pfnEnumProc(it, param);
return result;
}
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