/// <inheritdoc/>
public string SendText(string chatId, string text)
{
using (var cancellationTokenSource = this.CtsFactory())
{
return(this.ProxyCall(this.botClient.SendTextMessageAsync(
chatId: this.CreateChatId(chatId),
text: CharacterTransformation.TransformSpecialCharacters(text),
disableNotification: this.DisableNotifications,
disableWebPagePreview: this.DisableWebPagePreview,
parseMode: this.ParseMode,
cancellationToken: cancellationTokenSource.Token)));
}
}
/// <inheritdoc/>
public string StartSendText(string chatId, string text)
{
var cancellationTokenSource = this.CtsFactory();
return(this.FireAndForgetProxyCall(this.botClient.SendTextMessageAsync(
chatId: this.CreateChatId(chatId),
text: CharacterTransformation.TransformSpecialCharacters(text),
disableNotification: this.DisableNotifications,
disableWebPagePreview: this.DisableWebPagePreview,
parseMode: this.ParseMode,
cancellationToken: cancellationTokenSource.Token)
.DisposeAfterThreadCompletionAsync(new IDisposable[]
{
cancellationTokenSource,
})));
}
private MimeMessage CreateMessage(
string sender,
IEnumerable <string> recipients,
string subject,
string textBody,
string htmlBody,
IEnumerable <string> attachments = null)
{
var message = new MimeMessage();
message.From.Add(StringToMailboxAddress(sender));
foreach (var recipient in recipients)
{
if (recipient.ToLower().StartsWith("to:"))
{
message.To.Add(StringToMailboxAddress(recipient.Substring(3)));
}
else if (recipient.ToLower().StartsWith("cc:"))
{
message.Cc.Add(StringToMailboxAddress(recipient.Substring(3)));
}
else if (recipient.ToLower().StartsWith("bcc:"))
{
message.Bcc.Add(StringToMailboxAddress(recipient.Substring(4)));
}
else
{
throw new ArgumentException($"'{recipient}' has no valid prefix (to:, cc:, ...).");
}
}
if (!message.To.Any())
{
throw new ArgumentException($"You must provide at least one 'to' recipient.");
}
message.Subject = subject;
var builder = new BodyBuilder();
if (!string.IsNullOrWhiteSpace(textBody))
{
builder.TextBody = CharacterTransformation.TransformSpecialCharacters(textBody);
}
if (!string.IsNullOrWhiteSpace(htmlBody))
{
builder.HtmlBody = CharacterTransformation.TransformSpecialCharacters(htmlBody);
}
if (attachments != null)
{
foreach (var attachment in attachments)
{
builder.Attachments.Add(attachment);
}
}
// Now we just need to set the message body and we're done
message.Body = builder.ToMessageBody();
return(message);
}