private static async Task <IEnumerable <MailMessageModel> > SyncChallengesAsync(ImapMailbox mailbox, long uid)
{
var criteria = string.Format("{0}:* HEADER \"{1}\" \"{2}\"", uid, ParanoiaHeaderKeys.Type, MailType.Challenge);
var uids = await mailbox.SearchAsync(criteria);
if (!uids.Any())
{
return(new MailMessageModel[0]);
}
var envelopes = (await mailbox.FetchEnvelopesAsync(uids)).ToArray();
if (envelopes.Length == 0)
{
return(new MailMessageModel[0]);
}
if (envelopes.Length == 1 && envelopes.First().Uid == uid)
{
return(new MailMessageModel[0]);
}
var now = DateTime.Now;
foreach (var envelope in envelopes.Where(x => x.InternalDate.HasValue &&
now.Subtract(x.InternalDate.Value) < TimeSpan.FromHours(1)))
{
try {
await ProcessChallengeAsync(envelope, mailbox);
} catch (Exception ex) {
Logger.Error(ex);
}
}
var messages = new List <MailMessageModel>();
foreach (var envelope in envelopes)
{
try {
var message = envelope.ToMailMessage(MailType.Challenge);
messages.Add(message);
} catch (Exception ex) {
Logger.Error(ex);
}
}
return(messages);
}
private async Task <IEnumerable <MailMessageModel> > SyncNonChallengesAsync(ImapMailbox mailbox, long uid)
{
var criteria = string.Format("{0}:* NOT HEADER \"{1}\" \"{2}\"", uid, ParanoiaHeaderKeys.Type, MailType.Challenge);
var uids = await mailbox.SearchAsync(criteria);
if (!uids.Any())
{
return(new MailMessageModel[0]);
}
FetchedEnvelopeCount = 0;
TotalEnvelopeCount = uids.Count;
mailbox.EnvelopeFetched += OnEnvelopeFetched;
var envelopes = (await mailbox.FetchEnvelopesAsync(uids)).ToArray();
if (envelopes.Length == 0)
{
return(new MailMessageModel[0]);
}
mailbox.EnvelopeFetched -= OnEnvelopeFetched;
if (envelopes.Length == 1 && envelopes.First().Uid == uid)
{
return(new MailMessageModel[0]);
}
var messages = new List <MailMessageModel>();
foreach (var envelope in envelopes)
{
try {
var message = envelope.ToMailMessage(MailType.Message);
messages.Add(message);
} catch (Exception ex) {
Logger.Error(ex);
}
}
return(messages);
}
