public iCalendar GetFromUrl(string url, string calendarId)
{
var cache = new iCalendarCache(AuthContext, TimeZoneConverter, TenantManager);
iCalendar calendar = null;
if (calendarId != null)
{
calendar = cache.GetCalendarFromCache(calendarId);
}
if (calendar == null)
{
if (url.StartsWith("webcal"))
{
url = new Regex("webcal").Replace(url, "http", 1);
}
var req = (HttpWebRequest)WebRequest.Create(url);
using (var resp = req.GetResponse())
using (var stream = resp.GetResponseStream())
{
var ms = new MemoryStream();
stream.CopyTo(ms);
ms.Seek(0, SeekOrigin.Begin);
using (var tempReader = new StreamReader(ms))
{
var reader = new StringReader(tempReader.ReadToEnd());
calendar = GetFromStream(reader);
if (calendar != null && calendarId != null)
{
tempReader.BaseStream.Seek(0, SeekOrigin.Begin);
cache.UpdateCalendarCache(calendarId, tempReader);
}
}
}
}
if (calendar == null)
{
throw new Exception(CalendarApiResource.WrongiCalFeedLink);
}
return(calendar);
}
public void doComponentBegin(Token t)
{
_component.Push(t);
switch (t.TokenVal)
{
case TokenValue.Tvcalendar:
_curCalendar = new iCalendar(AuthContext, TimeZoneConverter, TenantManager);
break;
case TokenValue.Tvevent:
case TokenValue.Tvjournal:
_curEvent = new iCalEvent();
_curCalendar.Events.Add(_curEvent);
_curEvent.CalendarId = _curCalendar.Id;
break;
}
}
public iCalendar GetCalendarFromCache(string calendarId)
{
var filePath = _cacheParams.FolderCachePath + calendarId + ".ics";
if (File.Exists(filePath))
{
var fi = new FileInfo(filePath);
if ((DateTime.UtcNow - fi.LastWriteTimeUtc).TotalMinutes > _cacheParams.ExpiredPeriod)
{
return(null);
}
using (var tr = new StreamReader(File.OpenRead(filePath)))
{
var icalendar = new iCalendar(AuthContext, TimeZoneConverter, TenantManager);
return(icalendar.GetFromStream(tr));
}
}
return(null);
}
