// creates comma seperated address list from to: and cc:
private string CreateAddressList(List <EmailAddress> msgList)
{
StringBuilder sb = new StringBuilder();
int index = 1;
int msgCount = msgList.Count;
for (IEnumerator i = msgList.GetEnumerator(); i.MoveNext(); index++)
{
EmailAddress a = (EmailAddress)i.Current;
// EmailAddress a = new EmailAddress(i.Current.ToString());
// if the personal name exists, add it to the address sent. IE: "Ian Stallings" <*****@*****.**>
if (a.name != null && a.name.Length > 0)
{
sb.Append("=?" + charset + "?Q?" + MailEncoder.ConvertToQP(a.name) + "?= <" + a.address + ">");
}
else
{
sb.Append("<" + a.address + ">");
}
// if it's not the last address add a semi-colon:
if (msgCount != index)
{
sb.Append(";");
}
}
return(sb.ToString());
}
/// <summary>Constructor using a file path</summary>
/// <example>
/// <code>Attachment a = new Attachment("C:\\file.jpg");</code>
/// </example>
public Attachment(string filePath)
{
this.filePath = filePath;
if (filePath.Length > 0)
{
try
{
FileInfo fileInfo = new FileInfo(filePath);
if (fileInfo.Exists)
{
this.mimeType = getMimeType(fileInfo.Extension);
this.name = fileInfo.Name;
this.size = (int)fileInfo.Length;
string encodedTempFile = Path.GetTempFileName();
MailEncoder.ConvertToBase64(filePath, encodedTempFile);
this.encodedFilePath = encodedTempFile;
}
}
catch (ArgumentNullException)
{
throw new SmtpException("Attachment file does not exist or path is incorrect.");
}
}
}
private string GetTextMessageBody(string messageBody, string textType)
{
StringBuilder sb = new StringBuilder();
sb.Append("Content-Type: " + textType + ";\r\n");
sb.Append(" charset=\"" + charset + "\"\r\n");
// sb.Append("Content-Transfer-Encoding: quoted-printable\r\n\r\n");
// sb.Append("Content-Transfer-Encoding: Quoted-Printable\r\n\r\n");
sb.Append("Content-Transfer-Encoding: base64\r\n\r\n");
sb.Append(MailEncoder.ConvertToQP(messageBody));
return(sb.ToString());
}
// adds the contents of a encoded temp file to the message
private string GetAttachments()
{
StringBuilder sb = new StringBuilder();
if (attachments.Count != 0)
{
StringBuilder attSection = new StringBuilder();
for (IEnumerator i = attachments.GetEnumerator(); i.MoveNext();)
{
Attachment att = (Attachment)i.Current;
attSection.Append("\r\n--" + mixedBoundary + "\r\n");
attSection.Append("Content-Type: " + att.mimeType + ";\r\n");
attSection.Append(" name=\"" + att.name + "\"\r\n");
attSection.Append("Content-Transfer-Encoding: " + att.encoding + "\r\n");
attSection.Append("Content-Disposition: attachment;\r\n");
attSection.Append(" filename=\"" + MailEncoder.ConvertSubjectToQP(att.name, charset) + "\"\r\n\r\n");
FileStream fin = new FileStream(att.encodedFilePath, FileMode.Open, FileAccess.Read);
byte[] bin;
while (fin.Position != fin.Length)
{
bin = new byte[76];
int len = fin.Read(bin, 0, 76);
attSection.Append(Encoding.UTF8.GetString(bin, 0, len) + "\r\n");
}
fin.Close();
}
sb.Append(attSection);
}
return(sb.ToString());
}
/// <summary>Returns the MailMessage as a RFC 822 formatted message</summary>
/// <example>
/// <code>
/// MailMessage msg = new MailMessage("*****@*****.**", "*****@*****.**");
/// msg.Body = "body";
/// msg.Subject = "subject";
/// string message = msg.ToString();
/// </code>
/// </example>
/// <returns>Mailmessage as RFC 822 formatted string</returns>
public override string ToString()
{
StringBuilder sb = new StringBuilder();
if (ReplyTo.name != null && ReplyTo.name.Length != 0)
{
sb.Append("Reply-To: " + MailEncoder.ConvertHeaderToQP(ReplyTo.name, charset) + " <" + ReplyTo.address + ">\r\n");
}
else
{
sb.Append("Reply-To: <" + ReplyTo.address + ">\r\n");
}
if (from.name != null && from.name.Length != 0)
{
sb.Append("From: " + MailEncoder.ConvertHeaderToQP(from.name, charset) + " <" + from.address + ">\r\n");
}
else
{
sb.Append("From: <" + from.address + ">\r\n");
}
sb.Append("To: " + CreateAddressList(recipientList) + "\r\n");
if (ccList.Count != 0)
{
sb.Append("CC: " + CreateAddressList(ccList) + "\r\n");
}
if (subject != null && subject.Length > 0)
{
// sb.Append("Subject: " + MailEncoder.ConvertHeaderToQP(subject, charset) + "\r\n");
sb.Append("Subject: " + MailEncoder.ConvertSubjectToQP(subject, charset) + "\r\n");
}
sb.Append("Date: " + DateTime.Now.ToUniversalTime().ToString("R") + "\r\n");
sb.Append(SmtpConfig.Current.X_MAILER_HEADER + "\r\n");
if (notification)
{
if (ReplyTo.name != null && ReplyTo.name.Length != 0)
{
sb.Append("Disposition-Notification-To: " + MailEncoder.ConvertHeaderToQP(ReplyTo.name, charset) + " <" + ReplyTo.address + ">\r\n");
}
else
{
sb.Append("Disposition-Notification-To: <" + ReplyTo.address + ">\r\n");
}
}
// if(htmlBody!=null)
// {
// sb.Append(MailEncoder.ConvertHeaderToQP(htmlBody, charset) + "\r\n");
// }
if (priority != null)
{
sb.Append("X-Priority: " + priority + "\r\n");
}
if (customHeaders.Count > 0)
{
for (int i = 0; i < customHeaders.Count; i++)
{
sb.Append(customHeaders.Keys[i]);
sb.Append(": ");
sb.Append(MailEncoder.ConvertHeaderToQP(customHeaders[customHeaders.Keys[i]], charset));
sb.Append("\r\n");
}
}
sb.Append("MIME-Version: 1.0\r\n");
sb.Append(GetMessageBody());
return(sb.ToString());
}