public void SendMessage(MailMessage message, String origin, String[] destination)
{
if (origin.Length == 0) throw
new ArgumentException("No origin provided", "origin");
if (destination.Length == 0)
throw new ArgumentException("No destination provided", "destination");
if (!this.SendAndWaitForResponse(String.Format("MAIL FROM: <{0}>", origin), 250))
throw new Exception(String.Format("Invalid mail from reply: {0} {1}", this.LastResponseNo, this.LastResponseText));
for (Int32 i = 0; i < destination.Length; i++)
if (!this.SendAndWaitForResponse(String.Format("RCPT TO: <{0}>", destination[i]), 250))
throw new Exception(String.Format("Invalid rcpt to reply: {0} {1}", this.LastResponseNo, this.LastResponseText));
if (!this.SendAndWaitForResponse("DATA", 354))
throw new Exception(String.Format("Invalid data reply: {0} {1}", this.LastResponseNo, this.LastResponseText));
MemoryStream lStr = new MemoryStream();
message.EncodeMessage(lStr);
lStr.Position = 0;
lStr.WriteTo(this.CurrentConnection);
if (!this.SendAndWaitForResponse(".", 250))
throw new Exception(String.Format("Invalid data reply: {0} {1}", this.LastResponseNo, this.LastResponseText));
}
public void SendMessage(MailMessage message)
{
List<String> lAddresses = new List<String>();
SmtpClient.EnlistMailAddresses(lAddresses, message.To);
SmtpClient.EnlistMailAddresses(lAddresses, message.Cc);
SmtpClient.EnlistMailAddresses(lAddresses, message.Bcc);
this.SendMessage(message, message.From.Address, lAddresses.ToArray());
}
public static Boolean NeedEncoding(MailMessage message)
{
if (null == message)
throw new ArgumentNullException();
Boolean lIsUnicode = (-1 == ContainsUnicodeSymbols(message.Subject));
if (!lIsUnicode)
return true;
lIsUnicode = (-1 == ContainsUnicodeSymbols(message.Contents));
if (!lIsUnicode)
return true;
return true;
}
public void DecodeMessage(MailMessage destination, Stream source)
{
TextReader lReader = new StreamReader(source);
String lMessage = lReader.ReadToEnd();
String lBody;
//Debug.Write(lMessage);
if (lMessage.StartsWith(CRLF))
{
lBody = lMessage.Substring(2);
}
else
{
Int32 lHeaderEnd = lMessage.IndexOf(CRLF + CRLF, StringComparison.Ordinal);
if (lHeaderEnd < 0)
{
throw (new Exception("Invalid email message"));
}
ParseHeader(destination, lMessage.Substring(0, lHeaderEnd));
lBody = lMessage.Substring(lHeaderEnd + 4);
}
destination.Contents = lBody;
}
private void ParseHeader(MailMessage message, String header)
{
StringReader lStringReader = new StringReader(header);
HeaderField lField = null;
String lLine;
while (!String.IsNullOrEmpty((lLine = lStringReader.ReadLine())))
{
if ((lLine[0] == ' ' || lLine[0] == '\t') && (lField != null))
{ // header continuation or property
lField.Value += lLine;
}
else
{ // header
Int32 lPosition = lLine.IndexOf(':');
String lName = lLine.Substring(0, lPosition);
String lValue;
if ((lPosition + 2) < lLine.Length)
lValue = lLine.Substring(lPosition + 2);
else
lValue = String.Empty;
lField = new HeaderField(RemoveQuotes(lValue));
message.Fields.Add(lName, lField);
}
}
lField = message.Fields["To"];
if (lField != null)
{
message.Fields.Remove("To");
SetAddresses(message.To, lField.Value);
}
lField = message.Fields["From"];
if (lField != null)
{
message.Fields.Remove("From");
message.From.FromString(lField.Value);
}
lField = message.Fields["Sender"];
if (lField != null)
{
message.Fields.Remove("Sender");
message.Sender.FromString(lField.Value);
}
lField = message.Fields["CC"];
if (lField != null)
{
message.Fields.Remove("CC");
SetAddresses(message.Cc, lField.Value);
}
lField = message.Fields["bcc"];
if (lField != null)
{
message.Fields.Remove("bcc");
SetAddresses(message.Bcc, lField.Value);
}
}
public void EncodeMessage(MailMessage source, Stream destination)
{
StreamWriter lWrter = new StreamWriter(destination);
if (DefaultEncoder.NeedEncoding(source))
lWrter.WriteLine("MIME-Version: 1.0");
for (Int32 i = 0; i < source.Fields.Count; i++)
{
String lKey = source.Fields.Keys[i];
HeaderField lValue = source.Fields[lKey];
if (lKey.Equals("Subject"))
{
lValue.Value = DefaultEncoder.EncodeUtf8Base64(lValue.Value);
lWrter.WriteLine(lKey + ": " + lValue);
continue;
}
lWrter.WriteLine(SplitMultiLine(lKey + ": " + lValue, 80));
}
String lFromEncoded = DefaultEncoder.EncodeUtf8Base64(source.From.Name);
String lFrom = String.Format("From: {0} <{1}>", lFromEncoded, source.From.Address);
lWrter.WriteLine(lFrom);
if (source.Sender.IsSet())
lWrter.WriteLine(SplitMultiLine("Sender: " + source.Sender, 80));
if (source.To.Count > 0)
lWrter.WriteLine(SplitMultiLine("To: " + source.To, 80));
if (source.Cc.Count > 0)
lWrter.WriteLine(SplitMultiLine("Cc: " + source.Cc, 80));
if (-1 != DefaultEncoder.ContainsUnicodeSymbols(source.Contents))
{
lWrter.WriteLine("Content-Type: text/plain; charset=UTF-8; format=flowed");
lWrter.WriteLine("Content-Transfer-Encoding: 8bit");
}
lWrter.WriteLine();
lWrter.Write(source.Contents);
if (!source.Contents.EndsWith("\r\n")) // always add an enter
lWrter.WriteLine();
lWrter.Flush();
}
public abstract void DecodeMessage(MailMessage destination, Stream source);
public abstract void EncodeMessage(MailMessage source, Stream destination);
public MailMessage GetHeaders(Int32 messageIndex, Int32 messageNumber)
{
String lCommand = "TOP ";
if (messageNumber == -1)
lCommand += messageIndex.ToString();
else
lCommand += messageNumber.ToString();
lCommand += " 1";
String lResponse = SendAndReceive(lCommand);
if (lResponse.StartsWith("-ERR"))
throw new Exception(String.Format("Could not retrieve message at index {0}: {1}", messageIndex, lResponse));
MailMessage lMessage = new MailMessage();
MemoryStream lStream = new MemoryStream();
using (StreamWriter writer = new StreamWriter(lStream))
{
while (lResponse != ".")
{
lResponse = this.CurrentConnection.ReadLine();
writer.WriteLine(lResponse);
}
writer.Flush();
lStream.Position = 0;
lMessage.DecodeMessage(lStream);
}
return lMessage;
}