public static void LoadCalendarInfo(this MailMessageData mail, MimeMessage message, ILog log = null)
{
if (!message.BodyParts.Any())
{
return;
}
log = log ?? new NullLog();
try
{
var calendarParts = message.BodyParts.Where(p => p.ContentType.IsMimeType("text", "calendar")).ToList();
if (!calendarParts.Any())
{
return;
}
log.DebugFormat("LoadCalendarInfo found {0} calendars", calendarParts.Count);
foreach (var calendarPart in calendarParts)
{
var p = calendarPart as TextPart;
if (p == null)
{
continue;
}
var ics = p.Text;
var calendar = MailUtil.ParseValidCalendar(ics, log);
if (calendar == null)
{
continue;
}
if (calendar.Events[0].Organizer == null &&
calendar.Method.Equals(Defines.ICAL_REPLY, StringComparison.OrdinalIgnoreCase))
{
// Fix reply organizer (Outlook style of Reply)
var toAddress = message.To.Mailboxes.FirstOrDefault();
if (toAddress != null)
{
calendar.Events[0].Organizer = new Ical.Net.DataTypes.Organizer("mailto:" + toAddress.Address)
{
CommonName = string.IsNullOrEmpty(toAddress.Name)
? toAddress.Address
: toAddress.Name
};
ics = MailUtil.SerializeCalendar(calendar);
}
}
mail.CalendarUid = calendar.Events[0].Uid;
mail.CalendarId = -1;
mail.CalendarEventIcs = ics;
mail.CalendarEventCharset = string.IsNullOrEmpty(p.ContentType.Charset) ? Encoding.UTF8.HeaderName : p.ContentType.Charset;
mail.CalendarEventMimeType = p.ContentType.MimeType;
log.DebugFormat("Calendar UID: {0} Method: {1} ics: {2}", mail.CalendarUid, calendar.Method, mail.CalendarEventIcs);
var calendarExists =
message.Attachments
.Any(
attach =>
{
var subType = attach.ContentType.MediaSubtype.ToLower().Trim();
if (string.IsNullOrEmpty(subType) ||
(!subType.Equals("ics") &&
!subType.Equals("ical") &&
!subType.Equals("ifb") &&
!subType.Equals("icalendar") &&
!subType.Equals("calendar")))
{
return(false);
}
var icsTextPart = attach as TextPart;
string icsAttach;
if (icsTextPart != null)
{
icsAttach = icsTextPart.Text;
}
else
{
using (var stream = new MemoryStream())
{
p.Content.DecodeTo(stream);
var bytes = stream.ToArray();
var encoding = MailUtil.GetEncoding(p.ContentType.Charset);
icsAttach = encoding.GetString(bytes);
}
}
var cal = MailUtil.ParseValidCalendar(icsAttach, log);
if (cal == null)
{
return(false);
}
return(mail.CalendarUid == cal.Events[0].Uid);
});
if (calendarExists)
{
log.Debug("Calendar exists as attachment");
continue;
}
if (calendarPart.ContentDisposition == null)
{
calendarPart.ContentDisposition = new ContentDisposition();
}
if (string.IsNullOrEmpty(calendarPart.ContentDisposition.FileName))
{
calendarPart.ContentDisposition.FileName = calendar.Method == Defines.ICAL_REQUEST
? "invite.ics"
: calendar.Method == Defines.ICAL_REPLY ? "reply.ics" : "cancel.ics";
}
mail.LoadAttachments(new List <MimeEntity> {
calendarPart
}, true);
}
}
catch (Exception ex)
{
log.ErrorFormat("LoadCalendarInfo() \r\n Exception: \r\n{0}\r\n", ex.ToString());
}
}
private void LoadCalendarInfo(MimeMessage message)
{
if (!message.BodyParts.Any())
{
return;
}
try
{
var calendarParts = message.BodyParts.Where(p => p.ContentType.IsMimeType("text", "calendar")).ToList();
if (!calendarParts.Any())
{
return;
}
foreach (var calendarPart in calendarParts)
{
var p = calendarPart as TextPart;
if (p == null)
{
continue;
}
var ics = p.Text;
var calendar = MailUtil.ParseValidCalendar(ics);
if (calendar == null)
{
return;
}
if (calendar.Events[0].Organizer == null &&
calendar.Method.Equals("REPLY", StringComparison.OrdinalIgnoreCase))
{
// Fix reply organizer (Outlook style of Reply)
var toAddress = message.To.Mailboxes.FirstOrDefault();
if (toAddress != null)
{
calendar.Events[0].Organizer = new Organizer("mailto:" + toAddress.Address)
{
CommonName = string.IsNullOrEmpty(toAddress.Name)
? toAddress.Address
: toAddress.Name
};
ics = MailUtil.SerializeCalendar(calendar);
}
}
CalendarUid = calendar.Events[0].UID;
CalendarId = -1;
CalendarEventIcs = ics;
CalendarEventCharset = string.IsNullOrEmpty(p.ContentType.Charset) ? Encoding.UTF8.HeaderName : p.ContentType.Charset;
CalendarEventMimeType = p.ContentType.MimeType;
var calendarExists =
message.Attachments
.Any(
attach =>
{
var subType = attach.ContentType.MediaSubtype.ToLower().Trim();
if (string.IsNullOrEmpty(subType) ||
(!subType.Equals("ics") &&
!subType.Equals("ical") &&
!subType.Equals("ifb") &&
!subType.Equals("icalendar") &&
!subType.Equals("calendar")))
{
return(false);
}
var icsTextPart = attach as TextPart;
string icsAttach;
if (icsTextPart != null)
{
icsAttach = icsTextPart.Text;
}
else
{
using (var stream = new MemoryStream())
{
p.ContentObject.DecodeTo(stream);
var bytes = stream.ToArray();
var encoding = MailUtil.GetEncoding(p.ContentType.Charset);
icsAttach = encoding.GetString(bytes);
}
}
var cal = MailUtil.ParseValidCalendar(icsAttach);
if (cal == null)
{
return(false);
}
return(CalendarUid == cal.Events[0].UID);
});
if (calendarExists)
{
continue;
}
if (calendarPart.ContentDisposition == null)
{
calendarPart.ContentDisposition = new ContentDisposition();
}
if (string.IsNullOrEmpty(calendarPart.ContentDisposition.FileName))
{
calendarPart.ContentDisposition.FileName = calendar.Method == "REQUEST"
? "invite.ics"
: calendar.Method == "REPLY" ? "reply.ics" : "cancel.ics";
}
LoadAttachments(new List <MimeEntity> {
calendarPart
});
}
}
catch
{
// Ignore
}
}
