private async void OnEmailRecv(EmailRecvEvent ev)
{
var email = ev.email;
var match = Regex.Match(email.To, "(.*) <(?<name>.+)@.+>");
var targetChannels = new List <string?>();
var targetChannelIds = targetChannels.Select <string?, Ulid?>(str => { if (Ulid.TryParse(str, out Ulid res))
{
return(res);
}
else
{
return(null);
} }).Where(id => id != null).ToList();
while (match.Success)
{
targetChannels.Add(match.Groups["name"].Value);
match = match.NextMatch();
}
var origin = Regex.Match(email.From, "^(?<nick>.*) <(?<email>.+)>$").Groups;
var senderEmail = origin["email"].Value;
var senderNickname = origin["nick"].Value;
var allTargetChannels = await this.db.db.Channels
.AsQueryable().Where(ch => targetChannelIds.Contains(ch.ChannelId) ||
targetChannels.Contains(ch.ChannelUsername)).ToListAsync();
var allTargetChannelIds = allTargetChannels.Select(ch => ch.ChannelId).ToList();
var msg = new HatoMessage()
{
MsgId = Ulid.Empty,
// WARN: All timestamps represent the time when this email ARRIVES at the server
// Timestamp = email.Date,
SenderEmail = senderEmail,
SenderNickname = senderNickname,
Title = email.Subject,
BodyHtml = email.BodyHtml,
BodyPlain = email.BodyPlain,
};
var attachments = await UploadAndSaveAttachments(email);
msg.Attachments = attachments;
foreach (var channel in allTargetChannels)
{
msg._Channel = channel;
msg.ChannelId = channel.ChannelId;
await SaveEmail(msg);
}
List <IGrouping <string, string> > allTargetEmails = await GetEmailsFromChannelIds(allTargetChannelIds);
await SendEmailAndFailure(senderEmail, senderNickname, msg, allTargetEmails);
await db.db.SaveChangesAsync();
}
public async void dealWithChannel(EmailRecvEvent ev)
{
var email = ev.email;
var data = new EmailData();
if (email.BodyHtml != null)
{
data.Body = email.BodyHtml;
data.IsHtml = true;
}
else
{
data.Body = email.BodyPlain;
data.IsHtml = false;
}
data.PlaintextAlternativeBody = email.BodyPlain;
data.Subject = email.Subject;
var captures = Regex.Match(email.To, "^(.*) <(?<name>.+)@.+>$").Groups;
var channelName = captures["name"].Value;
logger.LogInformation("Got email from {0} to {1}; channelName = {2}", email.From, email.To, channelName);
var origin = Regex.Match(email.From, "^(?<nick>.*) <(?<email>.+)>$").Groups;
var originEmail = origin["email"].Value;
var originNick = origin["nick"].Value;
try
{
foreach (var attachment in email.Attachments)
{
var attachmentStream = await recvService.GetAttachment(attachment.Url);
var att = new Attachment();
att.Data = attachmentStream;
att.Filename = attachment.Name;
att.ContentType = attachment.ContentType;
data.Attachments.Add(att);
}
await this.SendEmailToChannel(channelName, data);
}
catch (ChannelSendFailedException e)
{
// const int maxBodyLength = 200;
// string strippedBody;
// if (email.BodyPlain.Length > maxBodyLength)
// {
// strippedBody = email.BodyPlain.Substring(0, 200) + "...";
// }
// else
// {
// strippedBody = email.BodyPlain;
// }
// await this.SendFailureEmailBack(
// originEmail, originNick, channelName, strippedBody, e.ToString(), email.Date);
// logger.LogWarning(e, "Failed to send to channel");
}
}