/// <summary>
/// Called when client application deletes this file.
/// </summary>
/// <param name="multistatus">Error description if case delate failed. Ignored by most clients.</param>
public override async Task DeleteAsync(MultistatusException multistatus)
{
// Notify attendees that event is canceled if deletion is successful.
string calendarObjectContent = File.ReadAllText(fileSystemInfo.FullName);
await base.DeleteAsync(multistatus);
IEnumerable <IComponent> calendars = new vFormatter().Deserialize(calendarObjectContent);
ICalendar2 calendar = calendars.First() as ICalendar2;
calendar.Method = calendar.CreateMethodProp(MethodType.Cancel);
await iMipEventSchedulingTransport.NotifyAttendeesAsync(context, calendar);
}
/// <summary>
/// Called when event or to-do is being saved to back-end storage.
/// </summary>
/// <param name="stream">Stream containing VCALENDAR, typically with a single VEVENT ot VTODO component.</param>
/// <param name="contentType">Content type.</param>
/// <param name="startIndex">Starting byte in target file
/// for which data comes in <paramref name="content"/> stream.</param>
/// <param name="totalFileSize">Size of file as it will be after all parts are uploaded. -1 if unknown (in case of chunked upload).</param>
/// <returns>Whether the whole stream has been written.</returns>
public override async Task <bool> WriteAsync(Stream content, string contentType, long startIndex, long totalFileSize)
{
bool result = await base.WriteAsync(content, contentType, startIndex, totalFileSize);
// Notify attendees that event is created or modified.
string calendarObjectContent = File.ReadAllText(fileSystemInfo.FullName);
IEnumerable <IComponent> calendars = new vFormatter().Deserialize(calendarObjectContent);
ICalendar2 calendar = calendars.First() as ICalendar2;
calendar.Method = calendar.CreateMethodProp(MethodType.Request);
await iMipEventSchedulingTransport.NotifyAttendeesAsync(context, calendar);
return(result);
}
/// <summary>
/// Sends an e-mail with event/to-do attachment to every attendee found in <see cref="ICalendar2.Attendees"/> list.
/// </summary>
/// <param name="calendar">Calendar object with event or to-do. The <see cref="ICalendar2.Method"/> property must be specified in this calendar object.</param>
public static async Task NotifyAttendeesAsync(DavContext context, ICalendar2 calendar)
{
IEnumerable <IEventBase> components = calendar.Events.Cast <IEventBase>();
if (!components.Any())
{
components = calendar.ToDos.Cast <IEventBase>();
}
IEventBase component = components.First();
ICalAddress organizer = component.Organizer;
string iCalendarContent = new vFormatter().Serialize(calendar);
foreach (IAttendee attendee in component.Attendees)
{
try
{
using (MailMessage mail = new MailMessage())
{
mail.From = GetMailAddress(organizer);
mail.To.Add(GetMailAddress(attendee));
mail.Subject = string.Format("Event: {0}", component.Summary.Text);
using (AlternateView alternateView = AlternateView.CreateAlternateViewFromString(iCalendarContent, Encoding.UTF8, "text/calendar"))
{
alternateView.TransferEncoding = TransferEncoding.EightBit;
// Method must be specified both in iCalendar METHOD property and in Content-Type.
alternateView.ContentType = new ContentType(string.Format(ContentTypePattern, calendar.Method.Method.Name));
mail.AlternateViews.Add(alternateView);
using (SmtpClient smtpClient = new SmtpClient())
{
smtpClient.EnableSsl = true;
await smtpClient.SendMailAsync(mail);
}
}
}
}
catch (Exception ex)
{
// Probably SMTP server is not configured in web.config/app.config
string message = "Faled to notify attendees about event change. SMTP server is not configured in web.config/app.config" + Environment.NewLine;
context.Logger.LogError(message, ex);
}
}
}
