Fixed pointer arithmentics in crypto.lib.

[stg.git] / stglibs / srvconf.lib / servconf.cpp

diff --git a/stglibs/srvconf.lib/servconf.cpp b/stglibs/srvconf.lib/servconf.cpp
index b8507098e2790425cfdfc7470c458d6a1facebd6..78db78c8fd8f335d696c984d52821aa1d1624b1f 100644 (file)
--- a/stglibs/srvconf.lib/servconf.cpp
+++ b/stglibs/srvconf.lib/servconf.cpp
@@ -16,253 +16,405 @@
 
 /*
  *    Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
 
 /*
  *    Author : Boris Mikhailenko <stg34@stargazer.dp.ua>

- */
-
- /*
- $Revision: 1.8 $
- $Date: 2010/08/04 00:40:38 $
- $Author: faust $
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>

  */
 
 #include "stg/servconf.h"
 
  */
 
 #include "stg/servconf.h"
 

+#include "netunit.h"
+
+#include "parsers/simple.h"
+#include "parsers/get_container.h"
+
+#include "parsers/server_info.h"
+
+#include "parsers/get_admin.h"
+#include "parsers/chg_admin.h"
+
+#include "parsers/get_tariff.h"
+#include "parsers/chg_tariff.h"
+
+#include "parsers/auth_by.h"
+#include "parsers/get_user.h"
+#include "parsers/chg_user.h"
+
+#include "parsers/get_service.h"
+#include "parsers/chg_service.h"
+
+#include "parsers/get_corp.h"
+#include "parsers/chg_corp.h"
+
+#include "parsers/base.h"
+

 #include "stg/common.h"
 
 #include <cstdio>
 #include <cstring>
 #include "stg/common.h"
 
 #include <cstdio>
 #include <cstring>

+#include <clocale>

 
 

-using namespace std;
+#include <expat.h>
+#include <langinfo.h>

 
 

-//-----------------------------------------------------------------------------
-int AnsRecv(void * data, list<string> * list1)
+using namespace STG;
+
+class SERVCONF::IMPL

 {
 {

-SERVCONF * sc = static_cast<SERVCONF *>(data);
+public:
+    IMPL(const std::string & server, uint16_t port,
+         const std::string & login, const std::string & password);
+    IMPL(const std::string & server, uint16_t port,
+         const std::string & localAddress, uint16_t localPort,
+         const std::string & login, const std::string & password);
+    ~IMPL() { XML_ParserFree(parser); }

 
 

-XML_ParserReset(sc->parser, NULL);
-XML_SetElementHandler(sc->parser, Start, End);
-XML_SetUserData(sc->parser, data);
+    const std::string & GetStrError() const;
+    static void Start(void * data, const char * el, const char ** attr);
+    static void End(void * data, const char * el);

 
 

-char ans[ENC_MSG_LEN + 1];
-int len, done = 0;
+    int RawXML(const std::string & request, RAW_XML::CALLBACK f, void * data);

 
 

-//loop parsing
-list<string>::iterator node;
-node = list1->begin();
+    template <class P, typename C>
+    int Exec(const std::string & request, C callback, void * data)
+    {
+        P cp(callback, data, encoding);
+        return ExecImpl(request, cp);
+    }

 
 

-while (node != list1->end())
+    template <class P, typename C>
+    int Exec(const std::string & tag, const std::string & request, C callback, void * data)

     {
     {

-    strncpy(ans, node->c_str(), ENC_MSG_LEN);
-    ans[ENC_MSG_LEN] = 0;
-    len = strlen(ans);
-
-    if (XML_Parse(sc->parser, ans, len, done) == XML_STATUS_ERROR)
-        {
-        strprintf(&sc->errorMsg, "XML parse error at line %d: %s",
-                  static_cast<int>(XML_GetCurrentLineNumber(sc->parser)),
-                  XML_ErrorString(XML_GetErrorCode(sc->parser)));
-        printf("%s\n", sc->errorMsg.c_str());
-        return st_xml_parse_error;
-        }
-    ++node;
+        P cp(tag, callback, data, encoding);
+        return ExecImpl(request, cp);
+    }

 
 

+    const std::string & Encoding() const { return encoding; }
+
+private:
+    NETTRANSACT nt;
+
+    std::string encoding;
+    std::string errorMsg;
+    XML_Parser parser;
+
+    static bool ParserRecv(const std::string & chunk, bool final, void * data);
+    static bool SimpleRecv(const std::string & chunk, bool final, void * data);
+    int ExecImpl(const std::string & request, PARSER & cp);
+};
+
+bool SERVCONF::IMPL::ParserRecv(const std::string & chunk, bool final, void * data)
+{
+SERVCONF::IMPL * sc = static_cast<SERVCONF::IMPL *>(data);
+
+if (XML_Parse(sc->parser, chunk.c_str(), chunk.length(), final) == XML_STATUS_ERROR)
+    {
+    strprintf(&sc->errorMsg, "XML parse error at line %d, %d: %s. Is final: %d",
+              static_cast<int>(XML_GetCurrentLineNumber(sc->parser)),
+              static_cast<int>(XML_GetCurrentColumnNumber(sc->parser)),
+              XML_ErrorString(XML_GetErrorCode(sc->parser)), (int)final);
+    printf("%s\n", sc->errorMsg.c_str());
+    return false;

     }
 
     }
 

-return st_ok;
+return true;

 }
 }

-//-----------------------------------------------------------------------------
-void Start(void *data, const char *el, const char **attr)
+
+bool SERVCONF::IMPL::SimpleRecv(const std::string & chunk, bool /*final*/, void * data)

 {
 {

-SERVCONF * sc;
-sc = (SERVCONF*)data;
-sc->Start(el, attr);
+*static_cast<std::string *>(data) += chunk;
+return true;

 }
 }

-//-----------------------------------------------------------------------------
-void End(void *data, const char *el)
+
+SERVCONF::SERVCONF(const std::string & server, uint16_t port,
+                   const std::string & login, const std::string & password)
+    : pImpl(new IMPL(server, port, login, password))

 {
 {

-SERVCONF * sc;
-sc = (SERVCONF*)data;
-sc->End(el);

 }
 }

-//-----------------------------------------------------------------------------
-SERVCONF::SERVCONF()
-    : currParser(NULL),
-      RecvSendMessageCb(NULL),
-      sendMessageDataCb(NULL)
+
+SERVCONF::SERVCONF(const std::string & server, uint16_t port,
+                   const std::string & localAddress, uint16_t localPort,
+                   const std::string & login, const std::string & password)
+    : pImpl(new IMPL(server, port, localAddress, localPort, login, password))

 {
 {

-parser = XML_ParserCreate(NULL);
-nt.SetRxCallback(this, AnsRecv);

 }
 }

-//-----------------------------------------------------------------------------
-void SERVCONF::SetServer(const char * server)
+
+SERVCONF::~SERVCONF()

 {
 {

-nt.SetServer(server);
+delete pImpl;

 }
 }

-//-----------------------------------------------------------------------------
-void SERVCONF::SetPort(uint16_t port)
+
+int SERVCONF::ServerInfo(SERVER_INFO::CALLBACK f, void * data)

 {
 {

-nt.SetServerPort(port);
+return pImpl->Exec<SERVER_INFO::PARSER>("<GetServerInfo/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-void SERVCONF::SetAdmLogin(const char * login)
+
+int SERVCONF::RawXML(const std::string & request, RAW_XML::CALLBACK f, void * data)

 {
 {

-nt.SetLogin(login);
+return pImpl->RawXML(request, f, data);

 }
 }

-//-----------------------------------------------------------------------------
-void SERVCONF::SetAdmPassword(const char * password)
+
+// -- Admins --
+
+int SERVCONF::GetAdmins(GET_CONTAINER::CALLBACK<GET_ADMIN::INFO>::TYPE f, void * data)

 {
 {

-nt.SetPassword(password);
+return pImpl->Exec<GET_CONTAINER::PARSER<GET_ADMIN::PARSER> >("admins", "<GetAdmins/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-int SERVCONF::GetUser(const char * l)
+
+int SERVCONF::GetAdmin(const std::string & login, GET_ADMIN::CALLBACK f, void * data)

 {
 {

-char request[255];
-snprintf(request, 255, "<GetUser login=\"%s\"/>", l);
+return pImpl->Exec<GET_ADMIN::PARSER>("<GetAdmin login=\"" + login + "\"/>", f, data);
+}

 
 

-currParser = &parserGetUser;
+int SERVCONF::ChgAdmin(const ADMIN_CONF_RES & conf, SIMPLE::CALLBACK f, void * data)
+{
+return pImpl->Exec<SIMPLE::PARSER>("ChgAdmin", "<ChgAdmin" + CHG_ADMIN::Serialize(conf, pImpl->Encoding()) + "/>", f, data);
+}

 
 

-return Exec(request);
+int SERVCONF::AddAdmin(const std::string & login,
+                       const ADMIN_CONF_RES & conf,
+                       SIMPLE::CALLBACK f, void * data)
+{
+int res = pImpl->Exec<SIMPLE::PARSER>("AddAdmin", "<AddAdmin login=\"" + login + "\"/>", f, data);
+if (res != st_ok)
+    return res;
+return pImpl->Exec<SIMPLE::PARSER>("ChgAdmin", "<ChgAdmin" + CHG_ADMIN::Serialize(conf, pImpl->Encoding()) + "/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-int SERVCONF::AuthBy(const char * l)
+
+int SERVCONF::DelAdmin(const std::string & login, SIMPLE::CALLBACK f, void * data)

 {
 {

-char request[255];
-snprintf(request, 255, "<GetUserAuthBy login=\"%s\"/>", l);
+return pImpl->Exec<SIMPLE::PARSER>("DelAdmin", "<DelAdmin login=\"" + login + "\"/>", f, data);
+}

 
 

-currParser = &parserAuthBy;
+// -- Tariffs --

 
 

-return Exec(request);
+int SERVCONF::GetTariffs(GET_CONTAINER::CALLBACK<GET_TARIFF::INFO>::TYPE f, void * data)
+{
+return pImpl->Exec<GET_CONTAINER::PARSER<GET_TARIFF::PARSER> >("tariffs", "<GetTariffs/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-int SERVCONF::GetUsers()
+
+int SERVCONF::GetTariff(const std::string & name, GET_TARIFF::CALLBACK f, void * data)

 {
 {

-char request[] = "<GetUsers/>";
+return pImpl->Exec<GET_TARIFF::PARSER>("<GetTariff name=\"" + name + "\"/>", f, data);
+}

 
 

-currParser = &parserGetUsers;
+int SERVCONF::ChgTariff(const TARIFF_DATA_RES & tariffData, SIMPLE::CALLBACK f, void * data)
+{
+return pImpl->Exec<SIMPLE::PARSER>("SetTariff", "<SetTariff name=\"" + tariffData.tariffConf.name.data() + "\">" + CHG_TARIFF::Serialize(tariffData, pImpl->Encoding()) + "</SetTariff>", f, data);
+}

 
 

-return Exec(request);
+int SERVCONF::AddTariff(const std::string & name,
+                       const TARIFF_DATA_RES & tariffData,
+                       SIMPLE::CALLBACK f, void * data)
+{
+int res = pImpl->Exec<SIMPLE::PARSER>("AddTariff", "<AddTariff name=\"" + name + "\"/>", f, data);
+if (res != st_ok)
+    return res;
+return pImpl->Exec<SIMPLE::PARSER>("SetTariff", "<SetTariff name=\"" + name + "\">" + CHG_TARIFF::Serialize(tariffData, pImpl->Encoding()) + "</SetTariff>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-int SERVCONF::SendMessage(const char * login, const char * message, int prio)
+
+int SERVCONF::DelTariff(const std::string & name, SIMPLE::CALLBACK f, void * data)

 {
 {

-char request[1000];
-char msg[500];
-Encode12(msg, message, strlen(message));
-snprintf(request, 1000, "<Message login=\"%s\" priority=\"%d\" text=\"%s\"/>", login, prio, msg);
+return pImpl->Exec<SIMPLE::PARSER>("DelTariff", "<DelTariff name=\"" + name + "\"/>", f, data);
+}

 
 

-currParser = &parserSendMessage;
-parserSendMessage.SetSendMessageRecvCb(RecvSendMessageCb, sendMessageDataCb);
+// -- Users --

 
 

-return Exec(request);
+int SERVCONF::GetUsers(GET_CONTAINER::CALLBACK<GET_USER::INFO>::TYPE f, void * data)
+{
+return pImpl->Exec<GET_CONTAINER::PARSER<GET_USER::PARSER> >("users", "<GetUsers/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-int SERVCONF::ServerInfo()
+
+int SERVCONF::GetUser(const std::string & login, GET_USER::CALLBACK f, void * data)

 {
 {

-char request[] = "<GetServerInfo/>";
+return pImpl->Exec<GET_USER::PARSER>("<GetUser login=\"" + login + "\"/>", f, data);
+}

 
 

-currParser = &parserServerInfo;
+int SERVCONF::ChgUser(const std::string & login,
+                      const USER_CONF_RES & conf,
+                      const USER_STAT_RES & stat,
+                      SIMPLE::CALLBACK f, void * data)
+{
+return pImpl->Exec<CHG_USER::PARSER>("<SetUser><Login value=\"" + login + "\"/>" + CHG_USER::Serialize(conf, stat, pImpl->Encoding()) + "</SetUser>", f, data);
+}

 
 

-return Exec(request);
+int SERVCONF::DelUser(const std::string & login, SIMPLE::CALLBACK f, void * data)
+{
+return pImpl->Exec<SIMPLE::PARSER>("DelUser", "<DelUser login=\"" + login + "\"/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-int SERVCONF::ChgUser(const char * request)
+
+int SERVCONF::AddUser(const std::string & login,
+                      const USER_CONF_RES & conf,
+                      const USER_STAT_RES & stat,
+                      SIMPLE::CALLBACK f, void * data)

 {
 {

-currParser = &parserChgUser;
+int res = pImpl->Exec<SIMPLE::PARSER>("AddUser", "<AddUser><Login value=\"" + login + "\"/></AddUser>", f, data);
+if (res != st_ok)
+    return res;
+return pImpl->Exec<CHG_USER::PARSER>("<SetUser><Login value=\"" + login + "\"/>" + CHG_USER::Serialize(conf, stat, pImpl->Encoding()) + "</SetUser>", f, data);
+}

 
 

-return Exec(request);
+int SERVCONF::AuthBy(const std::string & login, AUTH_BY::CALLBACK f, void * data)
+{
+return pImpl->Exec<AUTH_BY::PARSER>("<GetUserAuthBy login=\"" + login + "\"/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-//  TODO: remove this shit!
-//-----------------------------------------------------------------------------
-int SERVCONF::MsgUser(const char * request)
+
+int SERVCONF::SendMessage(const std::string & login, const std::string & text, SIMPLE::CALLBACK f, void * data)

 {
 {

-currParser = &parserSendMessage;
-parserSendMessage.SetSendMessageRecvCb(RecvSendMessageCb, sendMessageDataCb);
+return pImpl->Exec<SIMPLE::PARSER>("SendMessageResult", "<Message login=\"" + login + "\" msgver=\"1\" msgtype=\"1\" repeat=\"0\" repeatperiod=\"0\" showtime=\"0\" text=\"" + Encode12str(text) + "\"/>", f, data);
+}

 
 

-return Exec(request);
+int SERVCONF::CheckUser(const std::string & login, const std::string & password, SIMPLE::CALLBACK f, void * data)
+{
+return pImpl->Exec<SIMPLE::PARSER>("CheckUser", "<CheckUser login=\"" + login + "\" password=\"" + password + "\"/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-int SERVCONF::CheckUser(const char * login, const char * password)
+
+// -- Services --
+
+int SERVCONF::GetServices(GET_CONTAINER::CALLBACK<GET_SERVICE::INFO>::TYPE f, void * data)

 {
 {

-char request[255];
-snprintf(request, 255, "<CheckUser login=\"%s\" password=\"%s\"/>", login, password);
+return pImpl->Exec<GET_CONTAINER::PARSER<GET_SERVICE::PARSER> >("services", "<GetServices/>", f, data);
+}

 
 

-currParser = &parserCheckUser;
+int SERVCONF::GetService(const std::string & name, GET_SERVICE::CALLBACK f, void * data)
+{
+return pImpl->Exec<GET_SERVICE::PARSER>("<GetService name=\"" + name + "\"/>", f, data);
+}

 
 

-return Exec(request);
+int SERVCONF::ChgService(const SERVICE_CONF_RES & conf, SIMPLE::CALLBACK f, void * data)
+{
+return pImpl->Exec<SIMPLE::PARSER>("SetService", "<SetService name=\"" + conf.name.data() + "\">" + CHG_SERVICE::Serialize(conf, pImpl->Encoding()) + "</SetService>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-int SERVCONF::Start(const char *el, const char **attr)
+
+int SERVCONF::AddService(const std::string & name,
+                         const SERVICE_CONF_RES & conf,
+                         SIMPLE::CALLBACK f, void * data)

 {
 {

-currParser->ParseStart(el, attr);
-return 0;
+int res = pImpl->Exec<SIMPLE::PARSER>("AddService", "<AddService name=\"" + name + "\"/>", f, data);
+if (res != st_ok)
+    return res;
+return pImpl->Exec<SIMPLE::PARSER>("SetService", "<SetService name=\"" + name + "\">" + CHG_SERVICE::Serialize(conf, pImpl->Encoding()) + "</SetService>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-void SERVCONF::End(const char *el)
+
+int SERVCONF::DelService(const std::string & name, SIMPLE::CALLBACK f, void * data)

 {
 {

-currParser->ParseEnd(el);
+return pImpl->Exec<SIMPLE::PARSER>("DelService", "<DelService name=\"" + name + "\"/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-void SERVCONF::SetGetUsersCallback(PARSER_GET_USERS::CALLBACK f, void * data)
+
+// -- Corporations --
+
+int SERVCONF::GetCorporations(GET_CONTAINER::CALLBACK<GET_CORP::INFO>::TYPE f, void * data)

 {
 {

-parserGetUsers.SetCallback(f, data);
+return pImpl->Exec<GET_CONTAINER::PARSER<GET_CORP::PARSER> >("corporations", "<GetCorporations/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-void SERVCONF::SetGetUserCallback(PARSER_GET_USER::CALLBACK f, void * data)
+
+int SERVCONF::GetCorp(const std::string & name, GET_CORP::CALLBACK f, void * data)

 {
 {

-parserGetUser.SetCallback(f, data);
+return pImpl->Exec<GET_CORP::PARSER>("<GetCorp name=\"" + name + "\"/>", f, data);

 }
 }

-//-----------------------------------------------------------------------------
-void SERVCONF::SetAuthByCallback(PARSER_AUTH_BY::CALLBACK f, void * data)
+
+int SERVCONF::ChgCorp(const CORP_CONF_RES & conf, SIMPLE::CALLBACK f, void * data)
+{
+return pImpl->Exec<SIMPLE::PARSER>("SetCorp", "<SetCorp name=\"" + conf.name.data() + "\">" + CHG_CORP::Serialize(conf, pImpl->Encoding()) + "</SetCorp>", f, data);
+}
+
+int SERVCONF::AddCorp(const std::string & name,
+                      const CORP_CONF_RES & conf,
+                      SIMPLE::CALLBACK f, void * data)

 {
 {

-parserAuthBy.SetCallback(f, data);
+int res = pImpl->Exec<SIMPLE::PARSER>("AddCorp", "<AddCorp name=\"" + name + "\"/>", f, data);
+if (res != st_ok)
+    return res;
+return pImpl->Exec<SIMPLE::PARSER>("SetCorp", "<SetCorp name=\"" + name + "\">" + CHG_CORP::Serialize(conf, pImpl->Encoding()) + "</SetCorp>", f, data);

 }
 }

+
+int SERVCONF::DelCorp(const std::string & name, SIMPLE::CALLBACK f, void * data)
+{
+return pImpl->Exec<SIMPLE::PARSER>("DelCorp", "<DelCorp name=\"" + name + "\"/>", f, data);
+}
+
+const std::string & SERVCONF::GetStrError() const
+{
+return pImpl->GetStrError();
+}
+

 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------

-void SERVCONF::SetServerInfoCallback(PARSER_SERVER_INFO::CALLBACK f, void * data)
+SERVCONF::IMPL::IMPL(const std::string & server, uint16_t port,
+                     const std::string & login, const std::string & password)
+    : nt(server, port, login, password)

 {
 {

-parserServerInfo.SetCallback(f, data);
+setlocale(LC_ALL, "");
+encoding = nl_langinfo(CODESET);
+parser = XML_ParserCreate(NULL);

 }
 //-----------------------------------------------------------------------------
 }
 //-----------------------------------------------------------------------------

-void SERVCONF::SetChgUserCallback(PARSER_CHG_USER::CALLBACK f, void * data)
+SERVCONF::IMPL::IMPL(const std::string & server, uint16_t port,
+                     const std::string & localAddress, uint16_t localPort,
+                     const std::string & login, const std::string & password)
+    : nt(server, port, localAddress, localPort, login, password)

 {
 {

-parserChgUser.SetCallback(f, data);
+setlocale(LC_ALL, "");
+encoding = nl_langinfo(CODESET);
+parser = XML_ParserCreate(NULL);

 }
 //-----------------------------------------------------------------------------
 }
 //-----------------------------------------------------------------------------

-void SERVCONF::SetCheckUserCallback(PARSER_CHECK_USER::CALLBACK f, void * data)
+void SERVCONF::IMPL::Start(void * data, const char * el, const char ** attr)

 {
 {

-parserCheckUser.SetCallback(f, data);
+PARSER * currParser = static_cast<PARSER *>(data);
+currParser->ParseStart(el, attr);

 }
 //-----------------------------------------------------------------------------
 }
 //-----------------------------------------------------------------------------

-void SERVCONF::SetSendMessageCb(RecvSendMessageCb_t f, void * data)
+void SERVCONF::IMPL::End(void * data, const char * el)

 {
 {

-RecvSendMessageCb = f;
-sendMessageDataCb = data;
+PARSER * currParser = static_cast<PARSER *>(data);
+currParser->ParseEnd(el);

 }
 //-----------------------------------------------------------------------------
 }
 //-----------------------------------------------------------------------------

-const std::string & SERVCONF::GetStrError() const
+const std::string & SERVCONF::IMPL::GetStrError() const

 {
 return errorMsg;
 }
 //-----------------------------------------------------------------------------
 {
 return errorMsg;
 }
 //-----------------------------------------------------------------------------

-int SERVCONF::Exec(const char * request)
+int SERVCONF::IMPL::ExecImpl(const std::string & request, PARSER & cp)

 {
 {

-nt.Reset();
+XML_ParserReset(parser, NULL);
+XML_SetElementHandler(parser, Start, End);
+XML_SetUserData(parser, &cp);

 
 int ret = 0;
 if ((ret = nt.Connect()) != st_ok)
     {
     errorMsg = nt.GetError();
 
 int ret = 0;
 if ((ret = nt.Connect()) != st_ok)
     {
     errorMsg = nt.GetError();

+    cp.Failure(errorMsg);
+    return ret;
+    }
+if ((ret = nt.Transact(request, ParserRecv, this)) != st_ok)
+    {
+    errorMsg = nt.GetError();
+    cp.Failure(errorMsg);

     return ret;
     }
     return ret;
     }

-if ((ret = nt.Transact(request)) != st_ok)
+
+nt.Disconnect();
+return st_ok;
+}
+
+int SERVCONF::IMPL::RawXML(const std::string & request, RAW_XML::CALLBACK callback, void * data)
+{
+int ret = 0;
+if ((ret = nt.Connect()) != st_ok)

     {
     errorMsg = nt.GetError();
     {
     errorMsg = nt.GetError();

+    callback(false, errorMsg, "", data);

     return ret;
     }
     return ret;
     }

-if ((ret = nt.Disconnect()) != st_ok)
+std::string response;
+if ((ret = nt.Transact(request, SimpleRecv, &response)) != st_ok)

     {
     errorMsg = nt.GetError();
     {
     errorMsg = nt.GetError();

+    callback(false, errorMsg, "", data);

     return ret;
     }
 
     return ret;
     }
 

+nt.Disconnect();
+callback(true, "", response, data);

 return st_ok;
 }
 return st_ok;
 }