public FileResult Index(Guid? Id)
{
if (Id == null)
return AccessDenied();
RemoteCalendarAccessManager manager = new RemoteCalendarAccessManager();
BLM.RemoteCalendarAccess remoteCalendarAccess = manager.GetRemoteCalendarAccess(Id.Value);
if (remoteCalendarAccess == null)
return AccessDenied();
AzureActiveDirectory azureAD = new AzureActiveDirectory();
IUser user = null;
try
{
user = azureAD.GetUser(remoteCalendarAccess.UserId).Result;
}
catch (AggregateException e)
{
if (!e.InnerExceptions.Any(i => i.Message == "User " + remoteCalendarAccess.UserId + " not found."))
throw;
}
if (user == null || user.AccountEnabled == false)
return AccessDenied();
manager.UpdateLastAccessTime(remoteCalendarAccess);
Uri uri = new Uri(remoteCalendarAccess.SiteAddress);
string realm = TokenHelper.GetRealmFromTargetUrl(uri);
var token = TokenHelper.GetAppOnlyAccessToken("00000003-0000-0ff1-ce00-000000000000", uri.Authority, realm);
ClientContext clientContext = TokenHelper.GetClientContextWithAccessToken(uri.ToString(), token.AccessToken);
clientContext.Load(clientContext.Web.Lists);
clientContext.ExecuteQuery();
List list = clientContext.Web.Lists.Where(l => l.Id == remoteCalendarAccess.CalendarId).First();
if (list == null)
return AccessDenied();
ListItemCollection items = list.GetItems(CamlQuery.CreateAllItemsQuery());
clientContext.Load(items);
clientContext.Load(clientContext.Web);
clientContext.Load(clientContext.Web.RegionalSettings);
clientContext.Load(clientContext.Web.RegionalSettings.TimeZone);
clientContext.Load(clientContext.Web, w => w.Title);
clientContext.ExecuteQuery();
Calendar calendar = new Calendar();
calendar.Title = clientContext.Web.Title + " - " + list.Title;
calendar.Timezone = Timezone.Parse(clientContext.Web.RegionalSettings.TimeZone.Description);
calendar.Events = items.Select(i => Event.Parse(i)).ToList<Event>();
FileContentResult result = File(System.Text.Encoding.Default.GetBytes(calendar.ToString()), "text/calendar", "calendar.ics");
return result;
}
