added: flag has_pass to User structure

if false that means the user has not set a password yet 
       (this can be used by a plugins to create a new account without a password set)
       in order to login the user first has to set a new password
       (this can be done from a some kind of activation link send via email etc)
       



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@954 e52654a7-88a9-db11-a3e9-0013d4bc506e

functions/adduser.cpp

@@ -139,6 +139,7 @@ return true;
 */
 bool AddUser::AddNewUser(User & user, const std::wstring & pass)
 {
+	up.has_pass = true;
 	up.pass = pass;
 	system->crypt.PassHashCrypt(up);
 	

functions/login.cpp

@@ -91,7 +91,15 @@ bool result;
 
 	if( db->GetUserPass(login, user_id, up) )
 	{
-		result = CheckPasswords(password);
+		if( up.has_pass )
+		{
+			result = CheckPasswords(password);
+		}
+		else
+		{
+			log << log2 << "Login: this account has not a password set yet" << logend;
+			result = false;
+		}
 	}
 	else
 	{

functions/passwd.cpp

@@ -85,6 +85,7 @@ bool result = false;
 
 	if( puser )
 	{
+		up.has_pass = true;
 		up.pass = new_password;
 		system->crypt.PassHashCrypt(up);
 		result = (db->ChangeUserPass(user_id, up) == WINIX_ERR_OK);