333 lines
7.1 KiB
C++
Executable File
333 lines
7.1 KiB
C++
Executable File
/* by David "BAILOPAN" Anderson
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* http://www.bailopan.com
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "mssql.h"
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using namespace std;
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std::vector<msdb*> DBList;
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std::string error;
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int lastError = 0;
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bool msdb::Kill()
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{
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host.clear();
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pass.clear();
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dbname.clear();
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user.clear();
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free = true;
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try {
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cn->Close();
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cn = NULL;
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if (res)
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res->Close();
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res = NULL;
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} catch(_com_error &e) {
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_bstr_t bstrSource(e.Description());
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error.assign((LPCSTR)bstrSource);
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lastError = e.Error();
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return false;
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}
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return true;
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}
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bool msdb::Connect()
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{
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HRESULT hr;
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cstr.assign("Provider=sqloledb;Network Library=DBMSSOCN;");
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cstr.append("Data Source=");
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cstr.append(host);
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cstr.append(";Initial Catalog=");
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cstr.append(dbname);
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cstr.append(";User ID=");
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cstr.append(user);
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cstr.append(";Password=");
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cstr.append(pass);
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try {
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hr = cn.CreateInstance(__uuidof(ADODB::Connection));
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cn->Open(cstr.c_str(), user.c_str(), pass.c_str(), NULL);
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} catch (_com_error &e) {
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_bstr_t bstrSource(e.Description());
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error.assign((LPCSTR)bstrSource);
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lastError = e.Error();
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return false;
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}
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return 1;
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}
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int sql_exists(char *user, char *pass, char *db, char *host)
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{
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std::vector<msdb*>::iterator i;
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int id = 0;
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for (i=DBList.begin(); i!=DBList.end(); i++) {
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id++;
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if (((*i)->user.compare(user) == 0) &&
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((*i)->pass.compare(pass) == 0) &&
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((*i)->dbname.compare(db) == 0) &&
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((*i)->host.compare(host) == 0) &&
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(!(*i)->free)) {
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return id;
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}
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}
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return -1;
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}
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static cell AMX_NATIVE_CALL mssql_connect(AMX *amx, cell *params)
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{
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int len;
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unsigned int i;
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msdb *c = NULL;
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char *host = MF_GetAmxString(amx, params[1], 0, &len);
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char *user = MF_GetAmxString(amx, params[2], 1, &len);
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char *pass = MF_GetAmxString(amx, params[3], 2, &len);
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char *dbn = MF_GetAmxString(amx, params[4], 3, &len);
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int id = sql_exists(user, pass, dbn, host);
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if (id >= 0)
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return id;
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id = -1;
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for (i=0; i<DBList.size(); i++) {
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if (DBList.at(i)->free) {
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id = i;
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break;
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}
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}
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if (id < 0) {
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c = new msdb;
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DBList.push_back(c);
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id = DBList.size() - 1;
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} else {
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c = DBList.at(id);
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}
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c->host.assign(host);
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c->user.assign(user);
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c->pass.assign(pass);
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c->dbname.assign(dbn);
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try {
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if (c->Connect()) {
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c->free = false;
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return id+1;
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}
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} catch (_com_error &e) {
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_bstr_t bstrSource(e.Description());
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error.assign((LPCSTR)bstrSource);
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lastError = e.Error();
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MF_SetAmxString(amx, params[5], error.c_str(), params[6]);
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return -1;
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}
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c->free = true;
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return -1;
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}
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static cell AMX_NATIVE_CALL mssql_close(AMX *amx, cell *params)
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{
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unsigned int id = params[1] - 1;
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if (id >= DBList.size() || id < 0 || DBList.at(id)->free) {
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error.assign("Invalid handle.");
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MF_RaiseAmxError(amx, AMX_ERR_NATIVE);
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return 0;
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}
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return DBList.at(id)->Kill();
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}
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static cell AMX_NATIVE_CALL mssql_query(AMX *amx, cell *params)
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{
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unsigned int id = params[1] - 1;
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if (id >= DBList.size() || id < 0 || DBList.at(id)->free) {
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error.assign("Invalid handle.");
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MF_RaiseAmxError(amx, AMX_ERR_NATIVE);
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return 0;
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}
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msdb *c = NULL;
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c = DBList.at(id);
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try {
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if (c->res) {
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c->res->Close();
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c->res = NULL;
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}
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} catch (_com_error &e) {
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/* Nothing */
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}
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int len;
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const char *query = MF_FormatAmxString(amx, params, 2, &len);
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c->resStart = false;
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try {
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HRESULT hr = c->res.CreateInstance(__uuidof(ADODB::Recordset));
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if (FAILED(hr)) {
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return 0;
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}
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c->res->CursorType = ADODB::adOpenStatic;
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c->res->Open((_bstr_t)query, (_bstr_t)c->cstr.c_str(), ADODB::adOpenForwardOnly, ADODB::adLockReadOnly, ADODB::adCmdText);
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c->resStart = true;
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} catch (_com_error &e) {
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_bstr_t bstrSource(e.Description());
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error.assign((LPCSTR)bstrSource);
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lastError = e.Error();
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return -1;
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}
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try {
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c->res->MoveFirst();
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} catch (_com_error &e) {
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return 1;
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}
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return 1;
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}
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static cell AMX_NATIVE_CALL mssql_nextrow(AMX *amx, cell *params)
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{
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unsigned int id = params[1] - 1;
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if (id >= DBList.size() || id < 0 || DBList.at(id)->free) {
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error.assign("Invalid handle.");
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MF_RaiseAmxError(amx, AMX_ERR_NATIVE);
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return 0;
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}
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msdb *c = NULL;
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c = DBList.at(id);
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if (c->res == NULL)
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return 0;
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try {
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if (c->res->ADOEOF)
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return 0;
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c->res->MoveNext();
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if (c->res->ADOEOF)
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return 0;
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return 1;
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} catch (_com_error &e) {
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_bstr_t bstrSource(e.Description());
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error.assign((LPCSTR)bstrSource);
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lastError = e.Error();
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return -1;
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}
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return 0;
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}
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static cell AMX_NATIVE_CALL mssql_getfield(AMX *amx, cell *params)
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{
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unsigned int id = params[1] - 1;
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if (id >= DBList.size() || id < 0 || DBList.at(id)->free) {
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error.assign("Invalid handle.");
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MF_RaiseAmxError(amx, AMX_ERR_NATIVE);
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return 0;
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}
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msdb *c = NULL;
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c = DBList.at(id);
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try {
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if (c->res->ADOEOF)
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return 0;
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ADODB::FieldPtr pFld = NULL;
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_variant_t index = (short)params[2];
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pFld = c->res->Fields->GetItem(&index);
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_variant_t FldVal = pFld->GetValue();
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switch (FldVal.vt)
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{
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case (VT_BOOL):
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if (FldVal.boolVal) {
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MF_SetAmxString(amx, params[3], "1", params[4]);
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} else {
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MF_SetAmxString(amx, params[3], "0", params[4]);
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}
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break;
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case (VT_BSTR):
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MF_SetAmxString(amx, params[3], (LPCSTR)(_bstr_t)FldVal.bstrVal, params[4]);
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break;
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case (VT_I4):
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MF_SetAmxString(amx, params[3], (LPCSTR)FldVal.iVal, params[4]);
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break;
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case (VT_EMPTY):
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MF_SetAmxString(amx, params[3], (LPCSTR)FldVal.iVal, params[4]);
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break;
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default:
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return 0;
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break;
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}
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} catch (_com_error &e) {
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_bstr_t bstrSource(e.Description());
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error.assign((LPCSTR)bstrSource);
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lastError = e.Error();
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return -1;
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}
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return 1;
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}
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static cell AMX_NATIVE_CALL mssql_error(AMX *amx, cell *params)
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{
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error.assign("Invalid handle.");
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MF_SetAmxString(amx, params[2], error.c_str(), params[3]);
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return lastError;
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}
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void OnAmxxAttach()
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{
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MF_AddNatives(mssql_Natives);
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if(FAILED(::CoInitialize(NULL)))
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return;
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}
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void onAmxxDetach()
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{
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std::vector<msdb*>::iterator i;
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for (i=DBList.begin(); i!=DBList.end(); i++) {
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(*i)->Kill();
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}
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::CoUninitialize();
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return;
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}
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AMX_NATIVE_INFO mssql_Natives[] = {
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{"mssql_connect", mssql_connect},
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{"dbi_connect", mssql_connect},
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{"mssql_close", mssql_close},
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{"dbi_close", mssql_close},
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{"mssql_query", mssql_query},
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{"dbi_query", mssql_query},
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{"mssql_getfield", mssql_getfield},
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{"dbi_getfield", mssql_getfield},
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{"mssql_nextrow", mssql_nextrow},
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{"dbi_nextrow", mssql_nextrow},
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{"mssql_error", mssql_error},
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{"dbi_error", mssql_error},
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{NULL, NULL},
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///////////////////
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}; |