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568 lines (493 loc) · 12.4 KB
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#include "SQLite.h"
SQLite::SQLite(void)
{
lRC = 0;
lTransactionCount = 0;
sqlHandle = NULL;
sqlStmt = NULL;
sqlMemoryHandle = NULL;
sqlTableOneRecordStmt = NULL;
memset(szPassword, 0, sizeof(szPassword));
memset(szMasterQuery, 0, sizeof(szMasterQuery));
memset(szPragmaQuery, 0, sizeof(szPragmaQuery));
strcpy(szPassword, "(åWöù¶(¤ôWÓýWfK0ÈWŬÿ¯Áx(¼9øe°üÇî©vò§©-¾ø©$óR©Þû¬R©:7-[©Ü'Ýê„<WÞŸÚŠ³Î5Óøe°üÇî©vò§©-¾ø©$óR©Þû¬R©:7-[©Ü'Ýê„<WÞŸÚŠ³Î5Ó");
strcpy(szMasterQuery, "SELECT \"type\", \"tbl_name\" FROM \"SQLite_MASTER\"");
strcpy(szPragmaQuery, "PRAGMA cache_size = 20000");
}
SQLite::~SQLite(void)
{
}
bool SQLite::Open(char* szPath)
{
lRC = sqlite3_open((const char*)szPath, (sqlite3**)&sqlHandle);
if(lRC != SQLITE_OK){
PrintError("Open", sqlHandle);
return FALSE;
}
return TRUE;
}
bool SQLite::Close(bool memory = FALSE)
{
if(!memory){
if(sqlHandle == NULL){
return FALSE;
}
lRC = sqlite3_close(sqlHandle);
if(lRC != SQLITE_OK){
PrintError("Close", sqlHandle);
return FALSE;
}
sqlHandle = NULL;
}
else{
if(sqlMemoryHandle == NULL){
return FALSE;
}
lRC = sqlite3_close(sqlMemoryHandle);
if(lRC != SQLITE_OK){
PrintError("Close", sqlMemoryHandle);
return FALSE;
}
sqlMemoryHandle = NULL;
}
return TRUE;
}
bool SQLite::SetEncryptionKey(char* szKey = NULL)
{
if(sqlHandle == NULL){
return FALSE;
}
#ifdef USE_SQLCIPHER
if(szKey){
lRC = sqlite3_key(sqlHandle, (const void*)szKey, strlen(szKey));
}
else{
lRC = sqlite3_key(sqlHandle, (const void*)szPassword, strlen(szPassword));
}
if(lRC != SQLITE_OK){
PrintError("SetEncryptionKey", sqlHandle);
Close(TRUE);
return FALSE;
}
#endif
return TRUE;
}
bool SQLite::ApplyStanardQuery(char *szStandardQuery = NULL)
{
if(szStandardQuery){
lRC = sqlite3_prepare(sqlHandle, (const char*)szStandardQuery, -1, (sqlite3_stmt**)&sqlStmt, NULL);
}
else{
lRC = sqlite3_prepare(sqlHandle, (const char*)szPragmaQuery, -1, (sqlite3_stmt**)&sqlStmt, NULL);
}
if(sqlStmt == NULL){
if(lRC != SQLITE_OK){
PrintError("SetEncryptionKey", sqlHandle);
Close();
return FALSE;
}
return FALSE;
}
lRC = sqlite3_finalize(sqlStmt);
if(lRC != SQLITE_OK){
PrintError("SetEncryptionKey", sqlHandle);
Close();
return FALSE;
}
return TRUE;
}
bool SQLite::BeginTransaction()
{
sqlite3 *hDBHandle = NULL;
hDBHandle = (sqlite3 *) sqlHandle;
if (hDBHandle == NULL) {
return FALSE;
}
lTransactionCount++;
if(lTransactionCount == 1){
if(ExecuteNonQuery("BEGIN IMMEDIATE TRANSACTION") < 0){
lTransactionCount = 0;
return FALSE;
}
}
return TRUE;
}
bool SQLite::CommitTransaction()
{
sqlite3 *hDBHandle = NULL;
hDBHandle = (sqlite3 *) sqlHandle;
if (hDBHandle == NULL) {
return FALSE;
}
lTransactionCount--;
if(lTransactionCount == 0){
if(ExecuteNonQuery("COMMIT TRANSACTION") < 0){
lTransactionCount = 0;
return FALSE;
}
}
return TRUE;
}
bool SQLite::OpenMemory(char* szPath, char* szLongQuery, char* szShortQuery, char *szTableName, char *szKey = NULL){
char szAttachQuery[2048] = "";
char szQuery[512] = "";
char szInsertSQL[16538] = "";
sqlite3_stmt *tSQL3Stmt = NULL;
lRC = sqlite3_open(":memory:", &sqlMemoryHandle);
if(lRC != SQLITE_OK){
PrintError("OpenMemory", sqlMemoryHandle);
return FALSE;
}
#ifdef USE_SQLCIPHER
strcpy(szAttachQuery, "ATTACH DATABASE \"");
strcat(szAttachQuery, szPath);
strcat(szAttachQuery, "\" AS encrypted KEY \"");
if(szKey){
strcat(szAttachQuery, szKey);
}else{
strcat(szAttachQuery, szPassword);
}
strcat(szAttachQuery, "\";");
#endif
#ifdef USE_SQLITE
strcpy(szAttachQuery, "ATTACH DATABASE \"");
strcat(szAttachQuery, szPath);
strcat(szAttachQuery, "\" AS \"FQBase\"");
#endif
if(ExecuteNonQueryFromMemory(szAttachQuery) < 0){
PrintError("OpenMemory", sqlMemoryHandle);
return FALSE;
}
strcpy(szQuery, "PRAGMA cache_size = 20000");
lRC = sqlite3_prepare(sqlMemoryHandle, szQuery, -1, &tSQL3Stmt, NULL);
if(lRC != SQLITE_OK){
PrintError("OpenMemory", sqlMemoryHandle);
Close(TRUE);
return FALSE;
}
if(tSQL3Stmt == NULL){
PrintError("OpenMemory", sqlMemoryHandle);
Close(TRUE);
return FALSE;
}
lRC = sqlite3_finalize(tSQL3Stmt);
if(lRC != SQLITE_OK){
PrintError("OpenMemory", sqlMemoryHandle);
Close(TRUE);
return FALSE;
}
tSQL3Stmt = NULL;
strcpy(szInsertSQL, "CREATE TABLE \"");
strcat(szInsertSQL, szTableName);
strcat(szInsertSQL, "\" AS ");
strcat(szInsertSQL, szLongQuery);
if(ExecuteNonQueryFromMemory(szInsertSQL) < 0){
Close(TRUE);
return FALSE;
}
memset(szInsertSQL, 0, sizeof(szInsertSQL));
#ifdef USE_SQLCIPHER
strcpy(szInsertSQL, "DETACH DATABASE \"encrypted\"");
#endif
#ifdef USE_SQLITE
strcpy(szInsertSQL, "DETACH DATABASE \"FQBase\"");
#endif
if(ExecuteNonQueryFromMemory(szInsertSQL) < 0){
Close(TRUE);
return FALSE;
}
// send our short query
memset(szInsertSQL, 0, sizeof(szInsertSQL));
strcpy(szInsertSQL, szShortQuery);
tSQL3Stmt = NULL;
lRC = sqlite3_prepare(sqlMemoryHandle, szInsertSQL, -1, &tSQL3Stmt, NULL);
if(lRC != SQLITE_OK){
PrintError("OpenMemory", sqlMemoryHandle);
Close(TRUE);
return FALSE;
}
if(tSQL3Stmt == NULL){
PrintError("OpenMemory", sqlMemoryHandle);
Close(TRUE);
return FALSE;
}
lRC = sqlite3_step(tSQL3Stmt);
if(lRC == SQLITE_ROW){
sqlTableOneRecordStmt = tSQL3Stmt;
tSQL3Stmt = NULL;
return TRUE;
}
else{
PrintError("OpenMemory", sqlMemoryHandle);
Close(TRUE);
return FALSE;
}
return TRUE;
}
bool SQLite::CloseOneRecord()
{
LONG lRC = 0L;
sqlite3_stmt *tSQL3Stmt = NULL;
sqlite3 *hOneSQLDBHandle = NULL;
tSQL3Stmt = (sqlite3_stmt *)sqlTableOneRecordStmt;
if(tSQL3Stmt == NULL){
return FALSE;
}
lRC = sqlite3_finalize(tSQL3Stmt);
sqlTableOneRecordStmt = NULL;
return TRUE;
}
bool SQLite::OpenOneRecord(char* szTableName, char* szShortQuery, long rowID){
LONG lRC = 0L;
LONG lSizeOfInsertSQL = 0L;
sqlite3_stmt *tSQL3Stmt = NULL;
sqlite3 *hDBHandle = NULL;
char szInsertSQL[4196] = "";
char szRowID[10] = "";
LONG lRetryCnt = 0L;
hDBHandle = (sqlite3 *) sqlMemoryHandle;
if (hDBHandle == NULL) {
return(FALSE);
}
CloseOneRecord();
strcpy(szInsertSQL, szShortQuery);
sprintf(szRowID, "%ld", rowID);
strcat(szInsertSQL, " WHERE \"ROWID\" = ");
strcat(szInsertSQL, szRowID);
while (lRetryCnt < RETRYLOOPCOUNT) {
lRC = sqlite3_prepare((sqlite3 *) sqlMemoryHandle, (LPSTR) szInsertSQL, -1, &tSQL3Stmt, NULL);
if ((lRC != SQLITE_OK) || (tSQL3Stmt == NULL)) {
if (lRC != SQLITE_OK) {
PrintError("OpenOneRecord", sqlMemoryHandle);
return(FALSE);
}
}
sqlTableOneRecordStmt = tSQL3Stmt;
lRC = sqlite3_step (tSQL3Stmt);
if ((lRC != SQLITE_SCHEMA) && (lRC != SQLITE_ERROR)) {
break;
}
Sleep(10);
lRC = sqlite3_finalize (tSQL3Stmt);
tSQL3Stmt = NULL;
sqlTableOneRecordStmt = tSQL3Stmt;
lRetryCnt++;
}
if ((lRC != SQLITE_DONE) && (lRC != SQLITE_ROW)) {
PrintError("OpenOneRecord", sqlMemoryHandle);
lRC = sqlite3_finalize(tSQL3Stmt);
tSQL3Stmt = NULL;
sqlTableOneRecordStmt = tSQL3Stmt;
if (lRC != SQLITE_OK) {
PrintError("OpenOneRecord", sqlMemoryHandle);
}
return(FALSE);
}
if (lRC == SQLITE_ROW) {
return(TRUE);
}
lRC = sqlite3_finalize(tSQL3Stmt);
tSQL3Stmt = NULL;
sqlTableOneRecordStmt = tSQL3Stmt;
if (lRC != SQLITE_OK) {
PrintError("OpenOneRecord", sqlMemoryHandle);
}
return FALSE;
}
bool SQLite::GetColumnText(LONG lCol, char* sText, LONG lMaxTextLen)
{
sqlite3_stmt *tSQL3Stmt = NULL;
const unsigned char *lpText = NULL;
tSQL3Stmt = (sqlite3_stmt *) sqlTableOneRecordStmt;
if(tSQL3Stmt == NULL){
return FALSE;
}
if (sText != NULL) {
strcpy(sText, "");
}
if ((sText != NULL) && (lMaxTextLen > 0)) {
lpText = sqlite3_column_text(tSQL3Stmt, (int) lCol);
if (lpText != NULL) {
strncpy(sText, (char*)lpText, lMaxTextLen);
}
}
return TRUE;
}
long SQLite::ExecuteNonQuery(char *szSQLString)
{
LONG lRC = 0L;
sqlite3_stmt *tSQL3Stmt = NULL;
sqlite3 *hDBHandle = NULL;
LONG lRetryCnt = 0L;
LONG lCount = 0L;
CHAR sSQLStr[8];
hDBHandle = (sqlite3 *) sqlHandle;
if (hDBHandle == NULL) {
return(FALSE);
}
lCount = -1L;
lRetryCnt = 0L;
while (lRetryCnt < RETRYLOOPCOUNT) {
lCount = -1L;
tSQL3Stmt = NULL;
lRC = sqlite3_prepare(hDBHandle, szSQLString, -1, &tSQL3Stmt, NULL);
if ((lRC != SQLITE_OK) || (tSQL3Stmt == NULL)) {
if (lRC != SQLITE_OK) {
PrintError("ExecuteNonQuery", hDBHandle);
return(lCount);
}
}
lRC = sqlite3_step(tSQL3Stmt);
if ((lRC == SQLITE_LOCKED) || (lRC == SQLITE_BUSY) || (lRC == SQLITE_SCHEMA)) {
Sleep(10);
lRetryCnt++;
lRC = sqlite3_finalize(tSQL3Stmt);
tSQL3Stmt = NULL;
continue;
}
if ((lRC != SQLITE_OK) && (lRC != SQLITE_DONE)) {
if (lRC != SQLITE_OK) {
PrintError("ExecuteNonQuery", hDBHandle);
}
lRC = sqlite3_finalize (tSQL3Stmt);
tSQL3Stmt = NULL;
return(lCount);
}
lRC = sqlite3_finalize(tSQL3Stmt);
tSQL3Stmt = NULL;
if (lRC != SQLITE_OK) {
PrintError("ExecuteNonQuery", hDBHandle);
return(lCount);
}
strncpy(sSQLStr, szSQLString, sizeof(sSQLStr));
lCount = (LONG) sqlite3_changes(hDBHandle);
if ((strcmpi(sSQLStr, "DELETE ") == 0) || (strcmpi(sSQLStr, "INSERT ") == 0) || (strcmpi(sSQLStr, "UPDATE ") == 0) || (strcmpi(sSQLStr, "REPLACE") == 0)) {
}
else {
lCount = 0;
}
return(lCount);
}
return(lCount);
}
long SQLite::ExecuteNonQueryFromMemory(char *szSQLString)
{
LONG lRC = 0L;
sqlite3_stmt *tSQL3Stmt = NULL;
sqlite3 *hDBHandle = NULL;
LONG lRetryCnt = 0L;
LONG lCount = 0L;
CHAR sSQLStr[8];
hDBHandle = (sqlite3 *) sqlMemoryHandle;
if (hDBHandle == NULL) {
return(FALSE);
}
lCount = -1L;
lRetryCnt = 0L;
while (lRetryCnt < RETRYLOOPCOUNT) {
lCount = -1L;
tSQL3Stmt = NULL;
lRC = sqlite3_prepare(hDBHandle, szSQLString, -1, &tSQL3Stmt, NULL);
if ((lRC != SQLITE_OK) || (tSQL3Stmt == NULL)) {
if (lRC != SQLITE_OK) {
PrintError("ExecuteNonQueryFromMemory", hDBHandle);
return(lCount);
}
}
lRC = sqlite3_step(tSQL3Stmt);
if ((lRC == SQLITE_LOCKED) || (lRC == SQLITE_BUSY) || (lRC == SQLITE_SCHEMA)) {
Sleep(10);
lRetryCnt++;
lRC = sqlite3_finalize(tSQL3Stmt);
tSQL3Stmt = NULL;
continue;
}
if ((lRC != SQLITE_OK) && (lRC != SQLITE_DONE)) {
if (lRC != SQLITE_OK) {
PrintError("ExecuteNonQueryFromMemory", hDBHandle);
}
lRC = sqlite3_finalize (tSQL3Stmt);
tSQL3Stmt = NULL;
return(lCount);
}
lRC = sqlite3_finalize(tSQL3Stmt);
tSQL3Stmt = NULL;
if (lRC != SQLITE_OK) {
PrintError("ExecuteNonQueryFromMemory", hDBHandle);
return(lCount);
}
strncpy(sSQLStr, szSQLString, sizeof(sSQLStr));
lCount = (LONG) sqlite3_changes(hDBHandle);
if ((strcmpi(sSQLStr, "DELETE ") == 0) || (strcmpi(sSQLStr, "INSERT ") == 0) || (strcmpi(sSQLStr, "UPDATE ") == 0) || (strcmpi(sSQLStr, "REPLACE") == 0)) {
}
else {
lCount = 0;
}
return(lCount);
}
return(lCount);
}
long SQLite::CountSQLValue(char *sSQL)
{
LONG lRC = 0L;
sqlite3_stmt *tSQL3Stmt = NULL;
sqlite3 *hDBHandle = NULL;
LONG lCount = -1L;
LONG lRetryCnt = 0L;
lCount = -1L;
//hDBHandle = (sqlite3 *) lpISAM->hOptimizeSQLiteDataBase;
hDBHandle = (sqlite3 *) sqlMemoryHandle;
if (hDBHandle == NULL) {
return(FALSE);
}
tSQL3Stmt = NULL;
lRetryCnt = 0L;
while (lRetryCnt < RETRYLOOPCOUNT) {
lRC = sqlite3_prepare(hDBHandle, sSQL, -1, &tSQL3Stmt, NULL);
if ((lRC != SQLITE_OK) || (tSQL3Stmt == NULL)) {
if (lRC != SQLITE_OK) {
PrintError("CountSQLValue", hDBHandle);
}
return(lCount);
}
lRC = sqlite3_step(tSQL3Stmt);
if ((lRC != SQLITE_SCHEMA) && (lRC != SQLITE_ERROR)) {
break;
}
Sleep(10);
lRC = sqlite3_finalize(tSQL3Stmt);
tSQL3Stmt = NULL;
lRetryCnt++;
}
if ((lRC != SQLITE_DONE) && (lRC != SQLITE_ROW)) {
if (lRC != SQLITE_OK) {
PrintError("CountSQLValue", hDBHandle);
}
lRC = sqlite3_finalize(tSQL3Stmt);
tSQL3Stmt = NULL;
if (lRC != SQLITE_OK) {
PrintError("CountSQLValue", hDBHandle);
}
return(lCount);
}
if (lRC == SQLITE_ROW) {
lCount = sqlite3_column_int(tSQL3Stmt, 0);
lRC = sqlite3_finalize(tSQL3Stmt);
tSQL3Stmt = NULL;
if (lRC != SQLITE_OK) {
PrintError("CountSQLValue", hDBHandle);
}
return(lCount);
}
lRC = sqlite3_finalize (tSQL3Stmt);
tSQL3Stmt = NULL;
if (lRC != SQLITE_OK) {
PrintError("CountSQLValue", hDBHandle);
}
return(lCount);
}
void SQLite::PrintError(char* szFunctionName, sqlite3* handle)
{
const char *errorMsg = sqlite3_errmsg(handle);
std::cout << "\t\t" << szFunctionName << " = " << errorMsg << endl;
}