added: TextStream<> DbTextStream<> and HtmlTextStream<> have operator<<(Space&) now

added: to db: bool DbBase::AssertValueSpace(PGresult * r, int row, int col, Space & space, bool split_single)
added: environment variables for users
       User::env (of type Space) and
       User::aenv (of type Space) for admin variables (can be changed only by a super user)
added: winix function 'env'
       for changing User::env and User::aenv ('env' winix function with a 'a' parameter)



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@790 e52654a7-88a9-db11-a3e9-0013d4bc506e

functions/env.cpp

@@ -0,0 +1,183 @@
+/*
+ * This file is a part of Winix
+ * and is not publicly distributed
+ * 
+ * Copyright (c) 2012, Tomasz Sowa
+ * All rights reserved.
+ * 
+ */
+ 
+#include "env.h"
+#include "core/log.h"
+
+
+namespace Fun
+{
+
+Env::Env()
+{
+	fun.url = L"env";
+	puser   = 0;
+}
+
+
+bool Env::HasAccess()
+{
+	if( !cur->session->puser )
+		return false;
+
+	if( cur->request->IsParam(L"a") )
+	{
+		// show/change admin environment variables for a user
+
+		if( !cur->session->puser->super_user )
+			return false;
+	}
+
+	if( !GetUser() )
+		return false;
+
+return true;
+}
+
+
+
+bool Env::Parse(const std::wstring & env_str)
+{
+	space.Clear();
+	conf_parser.SetSpace(space);
+	conf_parser.UTF8(config->utf8);
+	conf_parser.SplitSingle(true);
+
+return (conf_parser.ParseString(env_str) == ConfParser::ok);
+}
+
+
+bool Env::EditAdminEnv(long user_id, const std::wstring & env_str)
+{
+	if( Parse(env_str) )
+	{
+		if( db->ChangeUserAdminEnv(user_id, space) == WINIX_ERR_OK )
+		{
+			User * puser = system->users.GetUser(user_id);
+
+			if( puser )
+				puser->aenv = space;
+
+			return true;
+		}
+		else
+		{
+			log << log1 << "Evn: a problem with changing environment variables for user: "
+				<< cur->session->puser->name << ", id: " << cur->session->puser->id << logend;
+		}
+	}
+	else
+	{
+		log << log2 << "Env: Syntax error in line: " << conf_parser.line << logend;
+		slog << logerror << "Syntax error in line: " << conf_parser.line << logend;
+	}
+
+return false;
+}
+
+
+bool Env::EditEnv(long user_id, const std::wstring & env_str)
+{
+	if( Parse(env_str) )
+	{
+		if( db->ChangeUserEnv(user_id, space) == WINIX_ERR_OK )
+		{
+			User * puser = system->users.GetUser(user_id);
+
+			if( puser )
+				puser->env = space;
+
+			return true;
+		}
+		else
+		{
+			log << log1 << "Evn: a problem with changing admin environment variables for user: "
+				<< cur->session->puser->name << ", id: " << cur->session->puser->id << logend;
+		}
+	}
+	else
+	{
+		log << log2 << "Env: Syntax error in line: " << conf_parser.line << logend;
+		slog << logerror << "Syntax error in line: " << conf_parser.line << logend;
+	}
+
+return false;
+}
+
+
+void Env::SaveEnv()
+{
+	if( GetUser() )
+	{
+		const std::wstring & env_str = cur->request->PostVar(L"envvar");
+		long user_id = GetUser()->id;
+		bool status  = false;
+
+		if( cur->request->IsParam(L"a") )
+		{
+			if( cur->session->puser->super_user )
+				status = EditAdminEnv(user_id, env_str);
+		}
+		else
+		{
+			status = EditEnv(user_id, env_str);
+		}
+
+		if( status )
+			system->RedirectToLastItem();
+	}
+}
+
+
+User * Env::GetUser()
+{
+	if( cur->request->id != req_id )
+	{
+		req_id  = cur->request->id;
+		puser   = 0;
+
+		if( cur->session->puser )
+		{
+			if( cur->session->puser->super_user && cur->request->IsPostVar(L"userid") )
+			{
+				long id = Tol(cur->request->PostVar(L"userid"));
+				puser   = system->users.GetUser(id);
+			}
+			else
+			{
+				puser = cur->session->puser;
+			}
+		}
+	}
+
+return puser;
+}
+
+
+void Env::MakePost()
+{
+	if( cur->session->puser )
+	{
+		if( cur->request->IsPostVar(L"changeuser") )
+		{
+			// show environments variables for the specified user
+			if( GetUser() )
+				log << log2 << "Env: changing user to: " << GetUser()->name << ", id: " << GetUser()->id << logend;
+		}
+		else
+		{
+			// save environment variables
+			SaveEnv();
+		}
+	}
+}
+
+
+} // namespace
+