/*
* /// <summary>
* /// Transfers specified message to specified socket. This is good for example transfering message from remote POP3 server to POP3 client.
* /// </summary>
* /// <param name="nr">Message number.</param>
* /// <param name="socket">Socket where to store message.</param>
* public void GetMessage(int nr,Socket socket)
* {
* if(!m_Connected){
* throw new Exception("You must connect first !");
* }
*
* if(!m_Authenticated){
* throw new Exception("You must authenticate first !");
* }
*
* Core.SendLine(m_pSocket,"RETR " + nr.ToString());
*
* // Read first line of reply, check if it's ok
* string line = Core.ReadLine(m_pSocket);
* if(line.StartsWith("+OK")){
* NetworkStream readStream = new NetworkStream(m_pSocket);
* NetworkStream storeStream = new NetworkStream(socket);
*
* byte[] crlf = new byte[]{(byte)'\r',(byte)'\n'};
* StreamLineReader reader = new StreamLineReader(readStream);
* byte[] lineData = reader.ReadLine();
* while(lineData != null){
* // End of message reached
* if(lineData.Length == 1 && lineData[0] == '.'){
* return;
* }
*
* storeStream.Write(lineData,0,lineData.Length);
* storeStream.Write(crlf,0,crlf.Length);
* lineData = reader.ReadLine();
* }
* }
* else{
* throw new Exception("Server returned:" + line);
* }
* }
*/
/// <summary>
/// Gets specified message.
/// </summary>
/// <param name="nr">Message number.</param>
public byte[] GetMessage(int nr)
{
if (!m_Connected)
{
throw new Exception("You must connect first !");
}
if (!m_Authenticated)
{
throw new Exception("You must authenticate first !");
}
m_pSocket.SendLine("RETR " + nr.ToString());
// Read first line of reply, check if it's ok
string line = m_pSocket.ReadLine();
if (line.StartsWith("+OK"))
{
MemoryStream strm = new MemoryStream();
ReadReplyCode code = m_pSocket.ReadData(strm, 100000000, "\r\n.\r\n", ".\r\n");
if (code != ReadReplyCode.Ok)
{
throw new Exception("Error:" + code.ToString());
}
return(Core.DoPeriodHandling(strm, false).ToArray());
}
else
{
throw new Exception("Server returned:" + line);
}
}
/// <summary>
/// Fetches messages headers or full messages data.
/// </summary>
/// <param name="startMsgNo">Start message number.</param>
/// <param name="endMsgNo">End message number. -1 = last.</param>
/// <param name="uidFetch">Specifies if startMsgNo and endMsgNo is message UIDs.</param>
/// <param name="headersOnly">If true message headers are retrieved, otherwise full message retrieved.</param>
/// <param name="setSeenFlag">If true message seen flag is setted.</param>
/// <returns></returns>
public IMAP_FetchItem[] FetchMessages(int startMsgNo, int endMsgNo, bool uidFetch, bool headersOnly, bool setSeenFlag)
{
if (!m_Connected)
{
throw new Exception("You must connect first !");
}
if (!m_Authenticated)
{
throw new Exception("You must authenticate first !");
}
if (m_SelectedFolder.Length == 0)
{
throw new Exception("You must select folder first !");
}
ArrayList fetchItems = new ArrayList();
string endMsg = endMsgNo.ToString();
if (endMsgNo < 1)
{
endMsg = "*";
}
string headers = "";
if (headersOnly)
{
headers = "HEADER";
}
string uidF = "";
if (uidFetch)
{
uidF = "UID ";
}
string seenFl = "";
if (!setSeenFlag)
{
seenFl = ".PEEK";
}
m_pSocket.SendLine("a1 " + uidF + "FETCH " + startMsgNo + ":" + endMsg + " (UID RFC822.SIZE FLAGS BODY" + seenFl + "[" + headers + "])");
// Must get lines with * and cmdTag + OK or cmdTag BAD/NO
string reply = m_pSocket.ReadLine();
if (reply.StartsWith("*"))
{
// Read multiline response
while (reply.StartsWith("*"))
{
// Fetch may return status response there, skip them
if (IsStatusResponse(reply))
{
continue;
}
// Get rid of * 1 FETCH and parse params. Reply:* 1 FETCH (UID 12 BODY[] ...)
reply = reply.Substring(reply.IndexOf("FETCH (") + 7);
int uid = 0;
int size = 0;
byte[] data = null;
bool isNewMsg = true;
bool isAnswered = false;
// Loop fetch result fields
for (int i = 0; i < 4; i++)
{
// UID field
if (reply.ToUpper().StartsWith("UID"))
{
reply = reply.Substring(3).Trim(); // Remove UID word from reply
if (reply.IndexOf(" ") > -1)
{
uid = Convert.ToInt32(reply.Substring(0, reply.IndexOf(" ")));
reply = reply.Substring(reply.IndexOf(" ")).Trim(); // Remove UID value from reply
}
else // Last param, no ending ' '
{
uid = Convert.ToInt32(reply.Substring(0));
reply = "";
}
}
// RFC822.SIZE field
else if (reply.ToUpper().StartsWith("RFC822.SIZE"))
{
reply = reply.Substring(11).Trim(); // Remove RFC822.SIZE word from reply
if (reply.IndexOf(" ") > -1)
{
size = Convert.ToInt32(reply.Substring(0, reply.IndexOf(" ")));
reply = reply.Substring(reply.IndexOf(" ")).Trim(); // Remove RFC822.SIZE value from reply
}
else
{
// Last param, no ending ' '
size = Convert.ToInt32(reply.Substring(0));
reply = "";
}
}
// BODY.PEEK field
else if (reply.ToUpper().StartsWith("BODY"))
{
// Get data. Find {dataLen}
int dataLen = Convert.ToInt32(reply.Substring(reply.IndexOf("{") + 1, reply.IndexOf("}") - reply.IndexOf("{") - 1));
MemoryStream storeStrm = new MemoryStream(dataLen);
ReadReplyCode code = m_pSocket.ReadData(storeStrm, dataLen, true);
if (code != ReadReplyCode.Ok)
{
throw new Exception("Read data:" + code.ToString());
}
data = storeStrm.ToArray();
// Read last fetch line, can be ')' or some params')'.
reply = m_pSocket.ReadLine().Trim();
if (!reply.EndsWith(")"))
{
throw new Exception("UnExpected fetch end ! value:" + reply);
}
else
{
reply = reply.Substring(0, reply.Length - 1).Trim(); // Remove ')' from reply
}
}
// FLAGS field
else if (reply.ToUpper().StartsWith("FLAGS"))
{
if (reply.ToUpper().IndexOf("\\SEEN") > -1)
{
isNewMsg = false;
}
if (reply.ToUpper().IndexOf("\\ANSWERED") > -1)
{
isAnswered = true;
}
reply = reply.Substring(reply.IndexOf(")") + 1).Trim(); // Remove FLAGS value from reply
}
}
fetchItems.Add(new IMAP_FetchItem(uid, size, data, headersOnly, isNewMsg, isAnswered));
reply = m_pSocket.ReadLine();
}
}
reply = reply.Substring(reply.IndexOf(" ")).Trim(); // Remove Cmd tag
if (!reply.ToUpper().StartsWith("OK"))
{
if (!reply.ToUpper().StartsWith("NO"))
{
throw new Exception("Server returned:" + reply);
}
}
IMAP_FetchItem[] retVal = new IMAP_FetchItem[fetchItems.Count];
fetchItems.CopyTo(retVal);
return(retVal);
}
