adding new email system, work in progress

files_to_translate.txt

@@ -1,3 +1,4 @@
 HTTPInterface/LoginPage.cpp
 HTTPInterface/CheckEmailPage.cpp
 model/Session.cpp
+model/Email.cpp

src/cpp/Gradido_LoginServer.cpp

@@ -7,7 +7,7 @@
 
 #include "SingletonManager/ConnectionManager.h"
 #include "SingletonManager/SessionManager.h"
-
+#include "SingletonManager/EmailManager.h"
 
 #include "Poco/Util/HelpFormatter.h"
 #include "Poco/Net/ServerSocket.h"
@@ -161,6 +161,7 @@ int Gradido_LoginServer::main(const std::vector<std::string>& args)
 		ServerConfig::g_ServerKeySeed->put(1, i1 | (i2 << 8));
 
 		ServerConfig::initEMailAccount(config());
+		EmailManager::getInstance()->init(config());
 
 		// start cpu scheduler
 		uint8_t worker_count = Poco::Environment::processorCount() * 2;

src/cpp/HTTPInterface/ElopageWebhook.cpp

@@ -16,7 +16,7 @@ using namespace Poco::Data::Keywords;
 #include "../tasks/PrepareEmailTask.h"
 #include "../tasks/SendEmailTask.h"
 
-#include "../model/EmailVerificationCode.h"
+#include "../controller/EmailVerificationCode.h"
 #include "../model/table/ElopageBuy.h"
 
 
@@ -301,7 +301,7 @@ int HandleElopageRequestTask::run()
 		}
 
 		// email verification code
-		auto emailVerification = model::EmailVerificationCode::create(user_id);
+		auto emailVerification = controller::EmailVerificationCode::create(user_id);
 		//Poco::AutoPtr<model::table::EmailOptIn> emailVerification(new model::table::EmailOptIn(user_id));
 
 		// create email verification code

src/cpp/ServerConfig.cpp

@@ -114,7 +114,7 @@ namespace ServerConfig {
 		g_EmailAccount.url = cfg.getString("email.smtp.url");
 		g_EmailAccount.port = cfg.getInt("email.smtp.port");
 		DISASM_FALSERET;
-		g_ServerKeySeed->put(3, DRRandom::r64());
+		//g_ServerKeySeed->put(3, DRRandom::r64());
 		return true;
 	}
 

src/cpp/ServerConfig.h

@@ -11,6 +11,7 @@
 
 #include "SingletonManager/LanguageManager.h"
 
+
 #define DISABLE_EMAIL
 
 namespace ServerConfig {
@@ -20,9 +21,10 @@ namespace ServerConfig {
 		MNEMONIC_BIP0039_SORTED_ORDER,
 		MNEMONIC_MAX
 	};
-
+	// depracted, moved to email manager
 	struct EmailAccount {
 		std::string sender;
+		std::string admin_receiver;
 		std::string username;
 		std::string password;
 		std::string url;

src/cpp/SingletonManager/EmailManager.cpp

@@ -0,0 +1,61 @@
+#include "EmailManager.h"
+#include "../ServerConfig.h"
+
+#include "../Crypto/Obfus_array.h"
+#include "../Crypto/DRRandom.h"
+
+EmailManager::EmailManager()
+	: mInitalized(false), mDisableEmail(false)
+{
+
+
+}
+
+EmailManager::~EmailManager()
+{
+	exit();
+	
+}
+
+EmailManager* EmailManager::getInstance()
+{
+	static EmailManager theOne;
+	return &theOne;
+}
+
+bool EmailManager::init(const Poco::Util::LayeredConfiguration& cfg)
+{
+	try {
+		mDisableEmail = cfg.getBool("email.disable", false);
+		mEmailAccount.sender = cfg.getString("email.sender");
+		mEmailAccount.admin_receiver = cfg.getString("email.admin_receiver");
+		mEmailAccount.username = cfg.getString("email.username");
+		mEmailAccount.password = cfg.getString("email.password");
+		mEmailAccount.url = cfg.getString("email.smtp.url");
+		mEmailAccount.port = cfg.getInt("email.smtp.port");
+	}
+	catch (Poco::Exception& ex) {
+		printf("email account not set in config: %s\n", ex.displayText().data());
+		return false;
+	}
+	mInitalized = true;
+
+	DISASM_FALSERET;
+	ServerConfig::g_ServerKeySeed->put(3, DRRandom::r64());
+
+	return true;
+}
+
+void EmailManager::exit()
+{
+	model::Email* email = nullptr;
+	while (mPendingEmails.pop(email)) {
+		delete email;
+	}
+	mInitalized = false;
+}
+
+int EmailManager::ThreadFunction()
+{
+	return 0;
+}

src/cpp/SingletonManager/EmailManager.h

@@ -0,0 +1,59 @@
+/*!
+*
+* \author: einhornimmond
+*
+* \date: 02.01.19
+*
+* \brief: manage emails, send all emails with only one connection to mail server, on after on
+*/
+
+#ifndef GRADIDO_LOGIN_SERVER_SINGLETON_MANAGER_EMAIL_MANAGER_H
+#define GRADIDO_LOGIN_SERVER_SINGLETON_MANAGER_EMAIL_MANAGER_H
+
+#include "Poco/AutoPtr.h"
+#include "Poco/Util/LayeredConfiguration.h"
+
+#include "../lib/MultithreadQueue.h"
+#include "../tasks/Thread.h"
+#include "../model/Email.h"
+
+class EmailManager : public UniLib::lib::Thread
+{
+	
+public:
+	~EmailManager();
+
+	static EmailManager* getInstance();
+
+	bool init(const Poco::Util::LayeredConfiguration& cfg);
+
+	inline const std::string& getAdminReceiver() { return mEmailAccount.admin_receiver; }
+
+	inline void addEmail(model::Email* email) { mPendingEmails.push(email); }
+	
+protected:
+	EmailManager();
+	void exit();
+
+	int ThreadFunction();
+
+	struct EmailAccount {
+		std::string sender;
+		std::string admin_receiver;
+		std::string username;
+		std::string password;
+		std::string url;
+		int port;
+	};
+	EmailAccount mEmailAccount;
+
+	bool mInitalized;
+	bool mDisableEmail;
+
+	UniLib::lib::MultithreadQueue<model::Email*> mPendingEmails;
+
+};
+
+
+
+#endif //GRADIDO_LOGIN_SERVER_SINGLETON_MANAGER_EMAIL_MANAGER_H

src/cpp/SingletonManager/LanguageManager.h

@@ -64,6 +64,7 @@ protected:
 	Languages mThisLanguage;
 };
 
+// TODO: max cached catalog count
 
 class LanguageManager : protected UniLib::lib::MultithreadContainer
 {

src/cpp/controller/EmailVerificationCode.cpp

@@ -1,4 +1,5 @@
 #include "EmailVerificationCode.h"
+#include "../ServerConfig.h"
 
 #include "sodium.h"
 
@@ -43,4 +44,12 @@ namespace controller {
 		}
 		return resultCode;
 	}
+
+	std::string EmailVerificationCode::getLink()
+	{
+		std::string link = ServerConfig::g_serverPath;
+		link += "/checkEmail/";
+		link += std::to_string(getModel()->getCode());
+		return link;
+	}
 }

src/cpp/controller/EmailVerificationCode.h

@@ -15,6 +15,8 @@ namespace controller {
 		static Poco::AutoPtr<EmailVerificationCode> create(int user_id);
 		inline Poco::AutoPtr<model::table::EmailOptIn> getModel() { return _getModel<model::table::EmailOptIn>(); }
 
+		std::string getLink();
+
 	protected:
 		EmailVerificationCode(model::table::EmailOptIn* dbModel);
 		static Poco::UInt64 createEmailVerificationCode();

src/cpp/controller/User.cpp

@@ -14,11 +14,22 @@ namespace controller {
 
 	Poco::AutoPtr<User> User::create()
 	{
-		/*auto code = createEmailVerificationCode();
-		auto db = new model::table::EmailOptIn(code, user_id);
-		auto result = new EmailVerificationCode(db);
-		return Poco::AutoPtr<EmailVerificationCode>(result);
-		*/
+		auto db = new model::table::User();
+		auto user = new User(db);
+		return Poco::AutoPtr<User>(user);
+	}
 
+	Poco::AutoPtr<User> User::create(const std::string& email, const std::string& first_name, const std::string& last_name, Poco::UInt64 passwordHashed/* = 0*/, std::string languageKey/* = "de"*/)
+	{
+		auto db = new model::table::User(email, first_name, last_name, passwordHashed, languageKey);
+		auto user = new User(db);
+		return Poco::AutoPtr<User>(user);
+	}
+	
+
+	int User::load(const unsigned char* pubkey_array)
+	{
+		Poco::Data::BLOB pubkey(pubkey_array, 32);
+		return getModel()->loadFromDB("pubkey", pubkey);
 	}
 }

src/cpp/controller/User.h

@@ -13,6 +13,11 @@ namespace controller {
 		~User();
 
 		static Poco::AutoPtr<User> create();
+		static Poco::AutoPtr<User> create(const std::string& email, const std::string& first_name, const std::string& last_name, Poco::UInt64 passwordHashed = 0, std::string languageKey = "de");
+
+		inline int load(const std::string& email) { return getModel()->loadFromDB("email", email); }
+		inline int load(int user_id) { return getModel()->loadFromDB("id", user_id); }
+		int load(const unsigned char* pubkey_array);
 
 		inline Poco::AutoPtr<model::table::User> getModel() { return _getModel<model::table::User>(); }
 

src/cpp/lib/MultithreadQueue.h

@@ -33,6 +33,7 @@
 #define _DR_UNIVERSUM_LIB_LIB_MULTITHREAD_QUEUE_H__
 
 #include "MultithreadContainer.h"
+#include <queue>
 
 namespace UniLib {
 	namespace lib {

src/cpp/model/Email.cpp

@@ -0,0 +1,186 @@
+#include "Email.h"
+#include "../SingletonManager/EmailManager.h"
+
+namespace model {
+
+const static char EmailText_emailVerification[] = {u8"\
+Hallo [first_name] [last_name],\n\
+\n\
+Du oder jemand anderes hat sich soeben mit dieser E-Mail Adresse bei Gradido registriert.\n\
+Wenn du es warst, klicke bitte auf den Link: [link]\n\
+oder kopiere den obigen Link in Dein Browserfenster.\n\
+\n\
+Mit freundlichen Grüßen\n\
+Dario, Gradido Server Admin\n\
+"};
+
+const static char EmailText_emailResetPassword[] = { u8"\
+Hallo [first_name] [last_name],\n\
+\n\
+Du oder jemand anderes hat für dieses Konto ein Passwort Reset angefordert.\n\
+Wenn du es warst, klicke bitte auf den Link: [link]\n\
+oder kopiere den obigen Link in Dein Browserfenster.\n\
+\n\
+Mit freundlichen Grüßen\n\
+Dario, Gradido Server Admin\n\
+" };
+
+const static char EmailText_adminEmailResetPassword[] = { u8"\
+Der Benutzer mit der Email-Adresse: [email] hat sein Passwort vergessen.\n\
+Außerdem hat er auch seine Passphrase vergessen. \n\
+Bitte logge dich im Admin-Bereich um das Problem zu lösen.\n\
+\n\
+LG \n\
+Gradido Login Server\
+" };
+
+	Email::Email(AutoPtr<controller::EmailVerificationCode> emailVerification, AutoPtr<controller::User> user, EmailType type)
+		: mEmailVerificationCode(emailVerification), mUser(user),  mType(type)
+	{
+
+	}
+
+
+	Email::Email(const std::string& errorHtml, EmailType type)
+		: mErrorHtml(errorHtml), mType(type)
+	{
+	}
+
+
+	bool Email::draft(Net::MailMessage* mailMessage, LanguageCatalog* langCatalog)
+	{
+		auto em = EmailManager::getInstance();
+		auto adminRecipient = Net::MailRecipient(Net::MailRecipient::PRIMARY_RECIPIENT, em->getAdminReceiver());
+		Poco::AutoPtr<model::table::User> userTableModel;
+		if (!mUser.isNull()) {
+			userTableModel = mUser->getModel();
+		}
+		static const char* functionName = "Email::draft";
+		std::string content;
+
+		switch (mType) {
+		case EMAIL_DEFAULT: 
+			mailMessage->addRecipient(adminRecipient);
+			mailMessage->setSubject(langCatalog->gettext_str("Default Email Subject"));
+			mailMessage->addContent(new Poco::Net::StringPartSource(langCatalog->gettext_str("Empty Email Content")));
+			return true;
+
+		case EMAIL_ERROR:
+			mailMessage->addRecipient(adminRecipient);
+			mailMessage->setSubject(langCatalog->gettext_str("Error from Gradido Login Server"));
+			mailMessage->addContent(new Poco::Net::StringPartSource(mErrorHtml));
+			return true;
+		
+		case EMAIL_USER_VERIFICATION_CODE:
+			if (userTableModel.isNull() || mUser->getModel()->getEmail() == "") {
+				addError(new Error(functionName, "no receiver email set for user email verification email"));
+				return false;
+			}
+			if (mEmailVerificationCode.isNull()) {
+				addError(new Error(functionName, "no email verification code set for user email verification email"));
+				return false;
+			}
+			mailMessage->addRecipient(Poco::Net::MailRecipient(Poco::Net::MailRecipient::PRIMARY_RECIPIENT, mUser->getModel()->getEmail()));
+			mailMessage->setSubject(langCatalog->gettext_str("Gradido: E-Mail Verification"));
+
+			mailMessage->addContent(
+				new Poco::Net::StringPartSource(replaceUserNamesAndLink(
+					langCatalog->gettext(EmailText_emailVerification),
+					userTableModel->getFirstName(), 
+					userTableModel->getLastName(),
+					mEmailVerificationCode->getLink()
+				))
+			);
+			return true;
+		case EMAIL_USER_RESET_PASSWORD:
+			if (userTableModel.isNull() || mUser->getModel()->getEmail() == "") {
+				addError(new Error(functionName, "no receiver email set for user reset password email"));
+				return false;
+			}
+			if (mEmailVerificationCode.isNull()) {
+				addError(new Error(functionName, "no email verification code set for user reset password email"));
+				return false;
+			}
+			mailMessage->addRecipient(Poco::Net::MailRecipient(Poco::Net::MailRecipient::PRIMARY_RECIPIENT, mUser->getModel()->getEmail()));
+			mailMessage->setSubject(langCatalog->gettext_str(u8"Gradido: Passwort zurücksetzen"));
+
+			mailMessage->addContent(
+				new Poco::Net::StringPartSource(replaceUserNamesAndLink(
+					langCatalog->gettext(EmailText_emailResetPassword),
+					userTableModel->getFirstName(),
+					userTableModel->getLastName(),
+					mEmailVerificationCode->getLink()
+				))
+			);
+			return true;
+		case EMAIL_ADMIN_RESET_PASSWORD_REQUEST_WITHOUT_MEMORIZED_PASSPHRASE:
+			if (userTableModel.isNull() || mUser->getModel()->getEmail() == "") {
+				addError(new Error(functionName, "no user email set for admin reset password email"));
+				return false;
+			}
+
+			mailMessage->addRecipient(adminRecipient);
+			mailMessage->setSubject(langCatalog->gettext_str("Reset Password Request without memorized passphrase"));
+			mailMessage->addContent(
+				new Poco::Net::StringPartSource(replaceEmail(
+					EmailText_adminEmailResetPassword,
+					userTableModel->getEmail()
+				))
+			);
+			return true;
+		default: return false;
+		}
+
+		return false;
+	}
+
+	std::string Email::replaceUserNamesAndLink(const char* src, const std::string& first_name, const std::string& last_name, const std::string& link)
+	{
+		std::string result = src;
+		int findCursor = 0;
+		static const char* functionName = "Email::replaceUserNamesAndLink";
+
+		int findPos = result.find("[first_name]", findCursor);
+		if (findPos != result.npos) {
+			findCursor = findPos + 13;
+			result.replace(findPos, 12, first_name);
+		}
+		else {
+			addError(new Error(functionName, "no first_name placeholder found"));
+		}
+		
+		findPos = result.find("[last_name]", findCursor);
+		if (findPos != result.npos) {
+			findCursor = findPos + 12;
+			result.replace(findPos, 11, last_name);
+		}
+		else {
+			addError(new Error(functionName, "no last_name placeholder found"));
+		}
+
+		findPos = result.find("[link]", findCursor);
+		if (findPos != result.npos) {
+			findCursor = findPos + 7;
+			result.replace(findPos, 6, link);
+		}
+		else {
+			addError(new Error(functionName, "no email placeholder found"));
+		}
+		return result;
+	}
+
+	std::string Email::replaceEmail(const char* src, const std::string& email)
+	{
+		std::string result = src;
+		static const char* functionName = "Email::replaceEmail";
+
+		int findPos = result.find("[email]");
+		if (findPos != result.npos) {
+			result.replace(findPos, 7, email);
+		}
+		else {
+			addError(new Error(functionName, "no email placeholder found"));
+		}
+		return result;
+	}
+}

src/cpp/model/Email.h

@@ -0,0 +1,56 @@
+/*!
+*
+* \author: einhornimmond
+*
+* \date: 02.01.20
+*
+* \brief: store email for 
+*/
+
+#ifndef GRADIDO_LOGIN_SERVER_MODEL_EMAIL_INCLUDE
+#define GRADIDO_LOGIN_SERVER_MODEL_EMAIL_INCLUDE
+
+#include "Poco/Net/MailMessage.h"
+
+#include "../controller/EmailVerificationCode.h"
+#include "../controller/User.h"
+
+#include "../SingletonManager/LanguageManager.h"
+
+#include "../lib/ErrorList.h"
+
+namespace model {
+	using namespace Poco;
+
+	enum EmailType 
+	{
+		EMAIL_DEFAULT,
+		EMAIL_ERROR,
+		EMAIL_USER_VERIFICATION_CODE,
+		EMAIL_USER_RESET_PASSWORD,
+		EMAIL_ADMIN_RESET_PASSWORD_REQUEST_WITHOUT_MEMORIZED_PASSPHRASE
+	};
+
+	class Email: public ErrorList
+	{
+	public:
+		Email(AutoPtr<controller::EmailVerificationCode> emailVerification, AutoPtr<controller::User> user, EmailType type);
+		//! \param errors copy errors into own memory
+		Email(const std::string& errorHtml, EmailType type);
+
+		inline EmailType getType() { return mType; }
+
+		bool draft(Net::MailMessage* mailMessage, LanguageCatalog* langCatalog);
+
+	protected:
+		std::string replaceUserNamesAndLink(const char* src, const std::string& first_name, const std::string& last_name, const std::string& link);
+		std::string replaceEmail(const char* src, const std::string& email);
+
+		AutoPtr<controller::EmailVerificationCode> mEmailVerificationCode;
+		AutoPtr<controller::User> mUser;
+		std::string mErrorHtml;
+		EmailType mType;
+	};
+}
+
+#endif //GRADIDO_LOGIN_SERVER_MODEL_EMAIL_INCLUDE

src/cpp/model/Session.cpp

@@ -84,7 +84,7 @@ int WritePassphraseIntoDB::run()
 // --------------------------------------------------------------------------------------------------------------
 
 Session::Session(int handle)
-	: mHandleId(handle), mSessionUser(nullptr), mEmailVerificationCode(0), mEmailVerificationCodeObject(nullptr), mState(SESSION_STATE_EMPTY), mActive(false)
+	: mHandleId(handle), mSessionUser(nullptr), mEmailVerificationCode(0), mState(SESSION_STATE_EMPTY), mActive(false)
 {
 
 }
@@ -106,10 +106,8 @@ void Session::reset()
 	lock("Session::reset");
 	
 	mSessionUser = nullptr;
-	if (mEmailVerificationCodeObject) {
-		delete mEmailVerificationCodeObject;
-		mEmailVerificationCodeObject = nullptr;
-	}
+	mNewUser = nullptr;
+	mEmailVerificationCodeObject = nullptr;
 
 	// watch out
 	//updateTimeout();
@@ -131,7 +129,7 @@ void Session::updateTimeout()
 	unlock();
 }
 
-controller::EmailVerificationCode* Session::getEmailVerificationCodeObject()
+Poco::AutoPtr<controller::EmailVerificationCode> Session::getEmailVerificationCodeObject()
 {
 	lock("Session::getEmailVerificationCodeObject");
 	auto ret = mEmailVerificationCodeObject;
@@ -376,7 +374,9 @@ int Session::updateEmailVerification(Poco::UInt64 emailVerificationCode)
 
 bool Session::createNewEmailVerificationCode()
 {
-	return false;
+	mEmailVerificationCodeObject = controller::EmailVerificationCode::create(mNewUser->getModel()->getID());
+
+	return true;
 }
 
 bool Session::startProcessingTransaction(const std::string& proto_message_base64)

src/cpp/model/Session.h

@@ -12,6 +12,7 @@
 
 #include "../lib/ErrorList.h"
 #include "User.h"
+#include "../controller/User.h"
 
 #include "../lib/MultithreadContainer.h"
 #include "../tasks/ProcessingTransaction.h"
@@ -57,7 +58,10 @@ public:
 	~Session();
 
 	// get new model objects
-	controller::EmailVerificationCode* getEmailVerificationCodeObject();
+	Poco::AutoPtr<controller::EmailVerificationCode> getEmailVerificationCodeObject();
+
+	// set new model objects
+	inline void setUser(Poco::AutoPtr<controller::User> user) { mNewUser = user; }
 
 	// ----------------  User functions ----------------------------
 	// TODO: automatic redirect after some time, median profiled time for register
@@ -69,6 +73,7 @@ public:
 
 	inline void setUser(Poco::AutoPtr<User> user) { mSessionUser = user; }
 	
+	
 	bool deleteUser();
 
 	Poco::AutoPtr<User> getUser() {
@@ -144,11 +149,12 @@ protected:
 private: 
 	int mHandleId;
 	Poco::AutoPtr<User> mSessionUser;
+	Poco::AutoPtr<controller::User> mNewUser;
 	std::string mPassphrase;
 	Poco::DateTime mLastActivity;
 	Poco::Net::IPAddress mClientLoginIP;
 	Poco::UInt64 mEmailVerificationCode;
-	controller::EmailVerificationCode* mEmailVerificationCodeObject;
+	Poco::AutoPtr<controller::EmailVerificationCode> mEmailVerificationCodeObject;
 
 
 	SessionStates mState;

src/cpp/model/table/ElopageBuy.cpp

@@ -67,7 +67,7 @@ namespace model {
 
 		}
 		
-		Poco::Data::Statement ElopageBuy::_loadFromDB(Poco::Data::Session session, std::string& fieldName)
+		Poco::Data::Statement ElopageBuy::_loadFromDB(Poco::Data::Session session, const std::string& fieldName)
 		{
 			//	Poco::Data::Statement select(session);
 

src/cpp/model/table/ElopageBuy.h

@@ -38,7 +38,7 @@ namespace model {
 			
 			
 		protected:
-			Poco::Data::Statement _loadFromDB(Poco::Data::Session session, std::string& fieldName);
+			Poco::Data::Statement _loadFromDB(Poco::Data::Session session, const std::string& fieldName);
 			Poco::Data::Statement _insertIntoDB(Poco::Data::Session session);
 
 			Poco::Int32 mIDs[ELOPAGE_BUY_MAX];

src/cpp/model/table/EmailOptIn.cpp

@@ -37,7 +37,7 @@ namespace model {
 		}
 
 
-		Poco::Data::Statement EmailOptIn::_loadFromDB(Poco::Data::Session session, std::string& fieldName)
+		Poco::Data::Statement EmailOptIn::_loadFromDB(Poco::Data::Session session, const std::string& fieldName)
 		{
 			Poco::Data::Statement select(session);
 

src/cpp/model/table/EmailOptIn.h

@@ -19,8 +19,9 @@ namespace model {
 			const char* getTableName() { return "email_opt_in"; }
 			
 			inline Poco::UInt64 getCode() const { return mEmailVerificationCode; }
+			inline void setCode(Poco::UInt64 code) { mEmailVerificationCode = code; }
 		protected:
-			Poco::Data::Statement _loadFromDB(Poco::Data::Session session, std::string& fieldName);
+			Poco::Data::Statement _loadFromDB(Poco::Data::Session session, const std::string& fieldName);
 			Poco::Data::Statement _insertIntoDB(Poco::Data::Session session);
 
 			// data type must be a multiple of 4

src/cpp/model/table/ModelBase.h

@@ -9,6 +9,8 @@
 
 #include "../../MySQL/MysqlTable.h"
 
+//using namespace Poco::Data::Keywords;
+
 namespace model {
 	namespace table {
 
@@ -21,8 +23,8 @@ namespace model {
 
 			virtual const char* getTableName() = 0;
 			
-			template<class T> size_t updateIntoDB(const std::string& fieldName, T fieldValue );
-			template<class T> size_t loadFromDB(const std::string& fieldName, T fieldValue);
+			template<class T> size_t updateIntoDB(const std::string& fieldName, const T& fieldValue );
+			template<class T> size_t loadFromDB(const std::string& fieldName, const T& fieldValue);
 			bool insertIntoDB();
 
 			inline void setID(int id) { lock(); mID = id; unlock(); }
@@ -35,7 +37,7 @@ namespace model {
 			void release();
 		protected:
 
-			virtual Poco::Data::Statement _loadFromDB(Poco::Data::Session session, std::string& fieldName) = 0;
+			virtual Poco::Data::Statement _loadFromDB(Poco::Data::Session session, const std::string& fieldName) = 0;
 			virtual Poco::Data::Statement _insertIntoDB(Poco::Data::Session session) = 0;
 
 			int mID;
@@ -46,11 +48,11 @@ namespace model {
 		};
 
 		template<class T>
-		size_t ModelBase::loadFromDB(const std::string& fieldName, T fieldValue)
+		size_t ModelBase::loadFromDB(const std::string& fieldName, const T& fieldValue)
 		{
 			auto cm = ConnectionManager::getInstance();
 			Poco::Data::Statement select = _loadFromDB(cm->getConnection(CONNECTION_MYSQL_LOGIN_SERVER), fieldName);
-			select, use(fieldValue);
+			select, Poco::Data::Keywords::useRef(fieldValue);
 
 			size_t resultCount = 0;
 			try {
@@ -66,7 +68,7 @@ namespace model {
 		}
 
 		template<class T>
-		size_t ModelBase::updateIntoDB(const std::string& fieldName, T fieldValue)
+		size_t ModelBase::updateIntoDB(const std::string& fieldName, const T& fieldValue)
 		{
 			auto cm = ConnectionManager::getInstance();
 			Poco::Data::Statement update(cm->getConnection(CONNECTION_MYSQL_LOGIN_SERVER));
@@ -77,7 +79,7 @@ namespace model {
 			}
 
 			update << "UPDATE " << getTableName() << " SET " << fieldName << " = ? where id = ?",
-					   use(fieldValue), use(mID);
+				Poco::Data::Keywords::useRef(fieldValue), Poco::Data::Keywords::use(mID);
 
 			size_t resultCount = 0;
 			try {
@@ -107,6 +109,32 @@ namespace model {
 			Poco::AutoPtr<ModelBase> mModel;
 
 		};
+
+
+		template <class T>
+		class ModelUpdateTask : public UniLib::controller::CPUTask
+		{
+		public:
+			ModelUpdateTask(Poco::AutoPtr<ModelBase> model, const std::string& fieldName, const T& fieldValue)
+				: UniLib::controller::CPUTask(ServerConfig::g_CPUScheduler), mModel(model), mFieldName(fieldName), mFieldValue(fieldValue)
+			{
+#ifdef _UNI_LIB_DEBUG
+				setName(model->getTableName());
+#endif
+			}
+
+			int run() {
+				mModel->updateIntoDB(mFieldName, mFieldValue);
+			}
+			const char* getResourceType() const { return "ModelUpdateTask"; };
+
+		protected:
+			Poco::AutoPtr<ModelBase> mModel;
+			std::string mFieldName;
+			T mFieldValue;
+		};
+
+
 	}
 }
 

src/cpp/model/table/User.cpp

@@ -61,7 +61,7 @@ namespace model {
 			return insert;
 		}
 		
-		Poco::Data::Statement User::_loadFromDB(Poco::Data::Session session, std::string& fieldName)
+		Poco::Data::Statement User::_loadFromDB(Poco::Data::Session session, const std::string& fieldName)
 		{
 
 			Poco::Data::Statement select(session);

src/cpp/model/table/User.h

@@ -60,7 +60,7 @@ namespace model {
 
 		protected:
 
-			Poco::Data::Statement _loadFromDB(Poco::Data::Session session, std::string& fieldName);
+			Poco::Data::Statement _loadFromDB(Poco::Data::Session session, const std::string& fieldName);
 			// insert only with email, first_name, last_name, password if exist and language
 			Poco::Data::Statement _insertIntoDB(Poco::Data::Session session);