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#include "stdafx.h"
CDbxSQLite::CDbxSQLite(const wchar_t *pwszFileName, bool bReadOnly, bool bShared) :
m_impl(*this),
m_wszFileName(mir_wstrdup(pwszFileName)),
m_safetyMode(true),
m_bReadOnly(bReadOnly),
m_bShared(bShared),
m_modules(1, strcmp)
{
}
CDbxSQLite::~CDbxSQLite()
{
if (m_bTranStarted) {
int rc = sqlite3_exec(m_db, "commit;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
}
UninitEvents();
if (m_db) {
int rc = sqlite3_close(m_db);
logError(rc, __FILE__, __LINE__);
m_db = nullptr;
}
}
/////////////////////////////////////////////////////////////////////////////////////////
int CDbxSQLite::Create()
{
ptrA path(mir_utf8encodeW(m_wszFileName));
int rc = sqlite3_open_v2(path, &m_db, SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE | SQLITE_OPEN_EXCLUSIVE, nullptr);
logError(rc, __FILE__, __LINE__);
if (rc != SQLITE_OK) {
logError(rc, __FILE__, __LINE__);
return 1;
}
rc = sqlite3_exec(m_db, "CREATE TABLE contacts (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT);", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "CREATE TABLE crypto (id INTEGER NOT NULL PRIMARY KEY, data NOT NULL);", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "CREATE TABLE events (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, contact_id INTEGER NOT NULL, module TEXT NOT NULL,"
"timestamp INTEGER NOT NULL, type INTEGER NOT NULL, flags INTEGER NOT NULL, data BLOB, server_id TEXT);", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "CREATE INDEX idx_events_contactid_timestamp ON events(contact_id, timestamp);", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "CREATE INDEX idx_events_module_serverid ON events(module, server_id);", nullptr, nullptr, nullptr);
if (rc != SQLITE_OK)
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "CREATE TABLE events_srt (id INTEGER NOT NULL, contact_id INTEGER NOT NULL, timestamp INTEGER, PRIMARY KEY(contact_id, timestamp, id));", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "CREATE TABLE settings (contact_id INTEGER NOT NULL, module TEXT NOT NULL, setting TEXT NOT NULL, type INTEGER NOT NULL, value NOT NULL,"
"PRIMARY KEY(contact_id, module, setting)) WITHOUT ROWID;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "CREATE INDEX idx_settings_module ON settings(module);", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
return 0;
}
/////////////////////////////////////////////////////////////////////////////////////////
int CDbxSQLite::Check()
{
FILE *hFile = _wfopen(m_wszFileName, L"rb");
if (hFile == INVALID_HANDLE_VALUE)
return EGROKPRF_CANTREAD;
char header[16] = {};
size_t size = sizeof(header);
if (fread(header, sizeof(char), size, hFile) != size) {
fclose(hFile);
return EGROKPRF_CANTREAD;
}
fclose(hFile);
if (memcmp(header, SQLITE_HEADER_STR, mir_strlen(SQLITE_HEADER_STR)) != 0)
return EGROKPRF_UNKHEADER;
sqlite3 *database = nullptr;
ptrA path(mir_utf8encodeW(m_wszFileName));
int rc = sqlite3_open_v2(path, &database, SQLITE_OPEN_READONLY | SQLITE_OPEN_EXCLUSIVE, nullptr);
if (rc != SQLITE_OK) {
logError(rc, __FILE__, __LINE__);
return EGROKPRF_DAMAGED;
}
sqlite3_close(database);
return EGROKPRF_NOERROR;
}
/////////////////////////////////////////////////////////////////////////////////////////
int CDbxSQLite::Load()
{
if (!LockName(m_wszFileName))
return EGROKPRF_CANTREAD;
ptrA path(mir_utf8encodeW(m_wszFileName));
int flags = 0;
if (!m_bShared)
flags |= SQLITE_OPEN_EXCLUSIVE;
if (m_bReadOnly)
flags |= SQLITE_OPEN_READONLY;
else
flags |= SQLITE_OPEN_READWRITE;
int rc = sqlite3_open_v2(path, &m_db, flags, nullptr);
if (rc != SQLITE_OK) {
logError(rc, __FILE__, __LINE__);
return EGROKPRF_CANTREAD;
}
rc = sqlite3_exec(m_db, "pragma locking_mode = EXCLUSIVE;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "pragma synchronous = NORMAL;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "pragma foreign_keys = OFF;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "pragma journal_mode = OFF;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
if (rc == SQLITE_BUSY) {
sqlite3_close(m_db);
return EGROKPRF_CANTREAD;
}
InitContacts();
InitEncryption();
InitSettings();
InitEvents();
if (InitCrypt())
return EGROKPRF_CANTREAD;
m_bTranStarted = true;
rc = sqlite3_exec(m_db, "begin transaction;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
return EGROKPRF_NOERROR;
}
/////////////////////////////////////////////////////////////////////////////////////////
BOOL CDbxSQLite::Backup(LPCWSTR profile)
{
sqlite3 *database = nullptr;
ptrA path(mir_utf8encodeW(profile));
int rc = sqlite3_open_v2(path, &database, SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE | SQLITE_OPEN_EXCLUSIVE, nullptr);
if (rc != SQLITE_OK) {
logError(rc, __FILE__, __LINE__);
return rc;
}
mir_cslock lock(m_csDbAccess);
sqlite3_backup *backup = sqlite3_backup_init(database, "main", m_db, "main");
if (backup == nullptr) {
sqlite3_close(database);
DeleteFileW(profile);
return ERROR_BACKUP_CONTROLLER;
}
rc = sqlite3_exec(m_db, "commit;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
logError(sqlite3_backup_step(backup, -1), __FILE__, __LINE__);
logError(sqlite3_backup_finish(backup), __FILE__, __LINE__);
sqlite3_close(database);
rc = sqlite3_exec(m_db, "begin transaction;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
return 0;
}
BOOL CDbxSQLite::Compact()
{
mir_cslock lck(m_csDbAccess);
int rc = sqlite3_exec(m_db, "pragma optimize;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "commit;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "vacuum;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "begin transaction;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
return 0;
}
void CDbxSQLite::DBFlush(bool bForce)
{
if (bForce) {
mir_cslock lck(m_csDbAccess);
int rc = sqlite3_exec(m_db, "commit;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
rc = sqlite3_exec(m_db, "begin transaction;", nullptr, nullptr, nullptr);
logError(rc, __FILE__, __LINE__);
}
else if (m_safetyMode)
m_impl.m_timer.Start(50);
}
BOOL CDbxSQLite::Flush()
{
DBFlush(true);
sqlite3_db_cacheflush(m_db);
return ERROR_SUCCESS;
}
BOOL CDbxSQLite::IsRelational()
{
return TRUE;
}
void CDbxSQLite::SetCacheSafetyMode(BOOL value)
{
// hack to increase import speed
if (!value)
sqlite3_exec(m_db, "pragma synchronous = OFF;", nullptr, nullptr, nullptr);
else
sqlite3_exec(m_db, "pragma synchronous = NORMAL;", nullptr, nullptr, nullptr);
m_safetyMode = value != FALSE;
}
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