fixed: there were mktime() used on some dirs Items

so sometimes the time of the dir was changed

now for converting tm into time_t use:
time_t Time(const tm & par);
time_t Time(const tm * par);
tm     Time(time_t par);
from core/misc.h

now winix internally use GMT time
only when printing it is converted to local user time
temporarily all users use the same local time (config: time_zone_offset)
(only logs are genereted with local system time)

added to system:
time_t LocalTime(time_t gmt_time);
tm     LocalTime(const tm * ptm);
tm     LocalTime(const tm & ptm);
they convert GMT time to local user time




git-svn-id: svn://ttmath.org/publicrep/winix/trunk@666 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/system.cpp

@@ -51,6 +51,7 @@ void System::Init()
 
 	users.SetRequest(request);
 	users.ReadUsers(db);
+	users.SetTimeZoneOffset(config->time_zone_offset);
 	groups.ReadGroups(db); // !! chwilowe przekazanie argumentu, db bedzie zmienione
 
 	rebus.SetRequest(request);
@@ -533,3 +534,35 @@ Error System::EditFile(Item & item, bool with_url, bool notify)
 
 return status;
 }
+
+
+time_t System::LocalTime(time_t gmt_time)
+{
+int time_offset;
+
+	if( request->session && request->session->puser )
+		time_offset = request->session->puser->time_zone_offset;
+	else
+		time_offset = config->time_zone_offset_guest;
+
+return gmt_time + (time_t)time_offset;
+}
+
+
+tm System::LocalTime(const tm * ptm)
+{
+time_t t;
+tm rtm;
+
+	t = Time(ptm);
+	t = LocalTime(t);
+	rtm = Time(t);
+
+return rtm;
+}
+
+
+tm System::LocalTime(const tm & ptm)
+{
+	return LocalTime(&ptm);
+}