private static void AppendAttachments(Mail mail, StringBuilder sb) {
string uniqueBoundary = GenerateUniqueBoundary();
sb.Append("MIME-Version: 1.0\r\n");
sb.Append("Content-Type: multipart/mixed; boundary=\"");
sb.Append(uniqueBoundary);
sb.Append("\"\r\n\r\n");
sb.Append("This is a multi-part message in MIME format.\r\n");
sb.Append("--");
sb.Append(uniqueBoundary);
sb.Append("\r\n");
AppendBody(mail, sb, false);
foreach(Attachment attachment in mail.Attachments) {
byte[] binaryData;
sb.Append("--");
sb.Append(uniqueBoundary);
sb.Append("\r\n");
sb.Append("Content-Type: ");
sb.Append(attachment.ContentType);
sb.Append("\r\n");
sb.Append("Content-Transfer-Encoding: base64\r\n");
sb.Append("Content-Disposition: attachment; filename=");
sb.Append(attachment.FileName);
sb.Append("\r\n");
sb.Append("\r\n");
using(Stream fileStream = attachment.OpenRead()) {
binaryData = new Byte[fileStream.Length];
fileStream.Read(binaryData, 0, (int)fileStream.Length);
}
string base64String = Convert.ToBase64String(binaryData, 0, binaryData.Length);
ChunkString(sb, base64String, 73);
sb.Append("\r\n");
}
sb.Append("--");
sb.Append(uniqueBoundary);
sb.Append("--\r\n");
}
/// <summary>
/// Returns instance of MailSender.
/// </summary>
public static MailSender CreateMailSender(Mail mail) {
MailCollection arrList = new MailCollection();
arrList.Add(mail);
return new MailSenderImpl(arrList);
}
private static void AppendHeaders(Mail mail, StringBuilder sb) {
AppendSender(sb, mail.From, "From");
AppendSender(sb, mail.ReplyTo, "Reply-To");
if(!mail.SenderHidden && mail.Sender != null && !mail.Sender.Equals(mail.From))
AppendSender(sb, mail.Sender, "Sender");
AppendRecivers(sb, mail.To, "To");
AppendRecivers(sb, mail.CC, "Cc");
DateTime now = DateTime.Now;
sb.Append("Date: ");
sb.Append(now.ToString("ddd, dd MMMM yyyy HH:mm:ss ", DateTimeFormatInfo.InvariantInfo));
sb.Append(now.ToString("zzzz", DateTimeFormatInfo.InvariantInfo).Replace(":", string.Empty));
sb.Append("\r\n");
sb.Append("Subject: ");
if(!string.IsNullOrEmpty(mail.Subject))
sb.Append(EncodeHeaderValue(mail.Subject));
sb.Append("\r\n");
sb.Append("X-Mailer: nJupiter SMTP-Client V");
sb.Append(typeof(Mail).Assembly.GetName().Version.ToString());
sb.Append("\r\n");
//TODO: fold header values (insert crlf after 78 chars, then continue the same way)
foreach(string key in mail.Headers.AllKeys) {
sb.Append(key + ": " + mail.Headers[key]);
sb.Append("\r\n");
}
}
private static void AppendBody(Mail mail, StringBuilder sb, bool addMimeHeader) {
if(addMimeHeader)
sb.Append("MIME-Version: 1.0\r\n");
if(mail.Format.Equals(MailFormat.TextAndHtml)) {
string uniqueBoundary = GenerateUniqueBoundary();
sb.Append("Content-Type: multipart/alternative; boundary=\"");
sb.Append(uniqueBoundary);
sb.Append("\"\r\n\r\n");
if(addMimeHeader)
sb.Append("This is a multi-part message in MIME format.\r\n");
sb.Append("--");
sb.Append(uniqueBoundary);
sb.Append("\r\n");
if(!string.IsNullOrEmpty(mail.AlternativeMessage))
AppendMessage(sb, mail.AlternativeMessage, "plain", mail.AlternativeMessageEncoding);
else
AppendMessage(sb, StripHtmlFromMessage(mail.Message), "plain", mail.MessageEncoding);
sb.Append("--");
sb.Append(uniqueBoundary);
sb.Append("\r\n");
AppendMessage(sb, mail.Message, "html", mail.MessageEncoding);
sb.Append("--");
sb.Append(uniqueBoundary);
sb.Append("--\r\n");
} else if(mail.Format.Equals(MailFormat.Html)) {
AppendMessage(sb, mail.Message, "html", mail.MessageEncoding);
} else {
AppendMessage(sb, mail.Message, "plain", mail.MessageEncoding);
}
}
private static string GenerateMail(Mail mail) {
StringBuilder sb = new StringBuilder();
AppendHeaders(mail, sb);
if(mail.Attachments != null && mail.Attachments.Count > 0) {
AppendAttachments(mail, sb);
} else {
AppendBody(mail, sb, true);
}
return sb.ToString();
}
public void CopyTo(Mail[] array, int index) {
InnerArray.CopyTo(array, index);
}
public bool Contains(Mail mail) {
return (InnerArray.Contains(mail));
}
public void Remove(Mail mail) {
InnerArray.Remove(mail);
}
public void Add(Mail mail) {
InnerArray.Add(mail);
}