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#include "stdafx.h"
enum {
SQL_SET_STMT_ENUM = 0,
SQL_SET_STMT_GET,
SQL_SET_STMT_REPLACE,
SQL_SET_STMT_DELETE,
SQL_SET_STMT_ENUMMODULE,
SQL_SET_STMT_CHANGES
};
static CQuery settings_stmts[] =
{
{ "SELECT DISTINCT module FROM settings;" },
{ "SELECT type, value FROM settings WHERE contact_id = ? AND module = ? AND setting = ? LIMIT 1;" },
{ "REPLACE INTO settings(contact_id, module, setting, type, value) VALUES (?, ?, ?, ?, ?);" },
{ "DELETE FROM settings WHERE contact_id = ? AND module = ? AND setting = ?;" },
{ "SELECT setting FROM settings WHERE contact_id = ? AND module = ?;" },
{ "SELECT CHANGES() FROM settings;" },
};
void CDbxSQLite::InitSettings()
{
for (auto &it : settings_stmts)
sqlite3_prepare_v3(m_db, it.szQuery, -1, SQLITE_PREPARE_PERSISTENT, &it.pQuery, nullptr);
sqlite3_stmt *stmt = nullptr;
sqlite3_prepare_v2(m_db, "SELECT type, value, contact_id, module, setting FROM settings;", -1, &stmt, nullptr);
while (sqlite3_step(stmt) == SQLITE_ROW) {
MCONTACT hContact = sqlite3_column_int64(stmt, 2);
auto *szModule = (const char *)sqlite3_column_text(stmt, 3);
auto *szSetting = (const char *)sqlite3_column_text(stmt, 4);
size_t settingNameLen = strlen(szSetting);
size_t moduleNameLen = strlen(szModule);
char *szCachedSettingName = m_cache->GetCachedSetting(szModule, szSetting, moduleNameLen, settingNameLen);
DBVARIANT *dbv = m_cache->GetCachedValuePtr(hContact, szCachedSettingName, 1);
if (dbv == nullptr) // garbage! a setting for removed/non-existent contact
continue;
dbv->type = (int)sqlite3_column_int(stmt, 0);
switch (dbv->type) {
case DBVT_BYTE:
dbv->bVal = sqlite3_column_int(stmt, 1);
break;
case DBVT_WORD:
dbv->wVal = sqlite3_column_int(stmt, 1);
break;
case DBVT_DWORD:
dbv->dVal = sqlite3_column_int64(stmt, 1);
break;
case DBVT_ASCIIZ:
case DBVT_UTF8:
dbv->cchVal = sqlite3_column_bytes(stmt, 1);
{
const char *value = (const char *)sqlite3_column_text(stmt, 1);
dbv->pszVal = (char *)mir_alloc(dbv->cchVal + 1);
memcpy(dbv->pszVal, value, dbv->cchVal);
dbv->pszVal[dbv->cchVal] = 0;
}
break;
case DBVT_ENCRYPTED:
case DBVT_BLOB:
dbv->cpbVal = sqlite3_column_bytes(stmt, 1);
{
const char *data = (const char *)sqlite3_column_blob(stmt, 1);
dbv->pbVal = (BYTE *)mir_alloc(dbv->cpbVal + 1);
memcpy(dbv->pbVal, data, dbv->cpbVal);
dbv->pbVal[dbv->cpbVal] = 0;
}
break;
}
}
sqlite3_finalize(stmt);
FillContactSettings();
}
void CDbxSQLite::UninitSettings()
{
for (auto &it : settings_stmts)
sqlite3_finalize(it.pQuery);
}
/////////////////////////////////////////////////////////////////////////////////////////
BOOL CDbxSQLite::EnumModuleNames(DBMODULEENUMPROC pFunc, void *param)
{
LIST<char> modules(100);
{
sqlite3_stmt *stmt = settings_stmts[SQL_SET_STMT_ENUM].pQuery;
int rc = 0;
while ((rc = sqlite3_step(stmt)) == SQLITE_ROW) {
const char *value = (const char *)sqlite3_column_text(stmt, 0);
modules.insert(mir_strdup(value));
}
logError(rc);
sqlite3_reset(stmt);
}
int result = -1;
for (auto &module : modules) {
result = pFunc(module, param);
mir_free(module);
}
return result;
}
/////////////////////////////////////////////////////////////////////////////////////////
BOOL CDbxSQLite::WriteContactSettingWorker(MCONTACT hContact, DBCONTACTWRITESETTING &dbcws)
{
sqlite3_stmt *stmt = settings_stmts[SQL_SET_STMT_REPLACE].pQuery;
sqlite3_bind_int64(stmt, 1, hContact);
sqlite3_bind_text(stmt, 2, dbcws.szModule, (int)mir_strlen(dbcws.szModule), nullptr);
sqlite3_bind_text(stmt, 3, dbcws.szSetting, (int)mir_strlen(dbcws.szSetting), nullptr);
sqlite3_bind_int(stmt, 4, dbcws.value.type);
switch (dbcws.value.type) {
case DBVT_BYTE:
sqlite3_bind_int(stmt, 5, dbcws.value.bVal);
break;
case DBVT_WORD:
sqlite3_bind_int(stmt, 5, dbcws.value.wVal);
break;
case DBVT_DWORD:
sqlite3_bind_int64(stmt, 5, dbcws.value.dVal);
break;
case DBVT_ASCIIZ:
case DBVT_UTF8:
sqlite3_bind_text(stmt, 5, dbcws.value.pszVal, dbcws.value.cchVal, nullptr);
break;
case DBVT_ENCRYPTED:
case DBVT_BLOB:
sqlite3_bind_blob(stmt, 5, dbcws.value.pbVal, dbcws.value.cpbVal, nullptr);
break;
}
int rc = sqlite3_step(stmt);
logError(rc);
sqlite3_reset(stmt);
if (rc != SQLITE_DONE)
return 1;
DBFlush();
return 0;
}
/////////////////////////////////////////////////////////////////////////////////////////
BOOL CDbxSQLite::DeleteContactSetting(MCONTACT hContact, LPCSTR szModule, LPCSTR szSetting)
{
if (szSetting == nullptr || szModule == nullptr)
return 1;
if (hContact) {
DBCachedContact *cc = m_cache->GetCachedContact(hContact);
if (cc == nullptr)
return 1;
}
char *szCachedSettingName = m_cache->GetCachedSetting(szModule, szSetting, mir_strlen(szModule), mir_strlen(szSetting));
if (szCachedSettingName[-1] == 0) { // it's not a resident variable
mir_cslock lock(m_csDbAccess);
sqlite3_stmt *stmt = settings_stmts[SQL_SET_STMT_DELETE].pQuery;
sqlite3_bind_int64(stmt, 1, hContact);
sqlite3_bind_text(stmt, 2, szModule, (int)mir_strlen(szModule), nullptr);
sqlite3_bind_text(stmt, 3, szSetting, (int)mir_strlen(szSetting), nullptr);
int rc = sqlite3_step(stmt);
logError(rc);
sqlite3_reset(stmt);
stmt = settings_stmts[SQL_SET_STMT_CHANGES].pQuery;
rc = sqlite3_step(stmt);
logError(rc);
int deleted = sqlite3_column_int(stmt, 0);
sqlite3_reset(stmt);
if (deleted == 0)
return 1;
DBFlush();
}
m_cache->GetCachedValuePtr(hContact, szCachedSettingName, -1);
// notify
DBCONTACTWRITESETTING dbcws = { 0 };
dbcws.szModule = szModule;
dbcws.szSetting = szSetting;
dbcws.value.type = DBVT_DELETED;
NotifyEventHooks(g_hevSettingChanged, hContact, (LPARAM)&dbcws);
return 0;
}
/////////////////////////////////////////////////////////////////////////////////////////
BOOL CDbxSQLite::EnumContactSettings(MCONTACT hContact, DBSETTINGENUMPROC pfnEnumProc, const char *szModule, void *param)
{
if (szModule == nullptr)
return -1;
if (hContact) {
DBCachedContact *cc = m_cache->GetCachedContact(hContact);
if (cc == nullptr)
return -1;
}
LIST<char> settings(100);
{
mir_cslock lock(m_csDbAccess);
sqlite3_stmt *stmt = settings_stmts[SQL_SET_STMT_ENUMMODULE].pQuery;
sqlite3_bind_int64(stmt, 1, hContact);
sqlite3_bind_text(stmt, 2, szModule, (int)mir_strlen(szModule), nullptr);
int rc = 0;
while ((rc = sqlite3_step(stmt)) == SQLITE_ROW) {
const char *value = (const char *)sqlite3_column_text(stmt, 0);
settings.insert(mir_strdup(value));
}
logError(rc);
sqlite3_reset(stmt);
}
int result = -1;
for (auto &setting : settings) {
result = pfnEnumProc(setting, param);
mir_free(setting);
}
return result;
}
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