/// <summary>
/// Is called from asynchronous socket if data is sended.
/// </summary>
/// <param name="a"></param>
private static void OnSendedData(IAsyncResult a)
{
object[] param = (object[])a.AsyncState;
BufferedSocket socket = (BufferedSocket)param[0];
MemoryStream strm = (MemoryStream)param[1];
object tag = param[2];
SocketCallBack callBack = (SocketCallBack)param[3];
try{
int countSended = socket.Socket.EndSend(a);
// Send next data block
if (strm.Position < strm.Length)
{
SendDataBlock(socket, strm, tag, callBack);
}
// We sended all data
else
{
callBack(SocketCallBackResult.Ok, strm.Position, null, tag);
}
}
catch (Exception x) {
callBack(SocketCallBackResult.Exception, strm.Position, x, tag);
}
}
/// <summary>
/// Starts sending block of data.
/// </summary>
/// <param name="socket">Socket where to send data.</param>
/// <param name="strm">Data to send.</param>
/// <param name="tag">User data.</param>
/// <param name="callBack">Method to call, if send completes.</param>
private static void SendDataBlock(BufferedSocket socket, Stream strm, object tag, SocketCallBack callBack)
{
byte[] data = new byte[1024];
int countReaded = strm.Read(data, 0, data.Length);
socket.Socket.BeginSend(data, 0, countReaded, 0, new AsyncCallback(OnSendedData), new object[] { socket, strm, tag, callBack });
}
/// <summary>
/// Sends line to Socket.
/// </summary>
/// <param name="socket"></param>
/// <param name="lineData"></param>
public static void SendLine(BufferedSocket socket, string lineData)
{
byte[] byte_data = System.Text.Encoding.Default.GetBytes(lineData + "\r\n");
int countSended = socket.Send(byte_data);
if (countSended != byte_data.Length)
{
throw new Exception("Send error, didn't send all bytes !");
}
}
/// <summary>
/// Reads line of data from Socket.
/// </summary>
/// <param name="socket"></param>
/// <param name="maxLen"></param>
/// <param name="idleTimeOut"></param>
/// <returns></returns>
public static string ReadLine(BufferedSocket socket, int maxLen, int idleTimeOut)
{
MemoryStream storeStream = null;
ReadReplyCode code = ReadData(socket, out storeStream, maxLen, idleTimeOut, "\r\n", "\r\n");
if (code != ReadReplyCode.Ok)
{
throw new ReadException(code, code.ToString());
}
return(System.Text.Encoding.Default.GetString(storeStream.ToArray()).Trim());
}
private string m_UserName = ""; // Holds loggedIn UserName.
#endregion Fields
#region Constructors
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="clientSocket">Referance to socket.</param>
/// <param name="server">Referance to FTP server.</param>
/// <param name="sessionID">Session ID which is assigned to this session.</param>
/// <param name="logWriter">Log writer.</param>
public FTP_Session(Socket clientSocket,FTP_Server server,string sessionID,_LogWriter logWriter)
{
m_pSocket = new BufferedSocket(clientSocket);
m_pServer = server;
m_SessionID = sessionID;
m_pLogWriter = logWriter;
m_SessionStartTime = DateTime.Now;
m_LastDataTime = DateTime.Now;
m_pSocket.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.NoDelay,1);
// Start session proccessing
StartSession();
}
/// <summary>
/// Reads specified count of data from Socket.
/// </summary>
/// <param name="socket"></param>
/// <param name="count">Number of bytes to read.</param>
/// <param name="storeStrm"></param>
/// <param name="storeToStream">If true stores readed data to stream, otherwise just junks specified amount of data.</param>
/// <param name="cmdIdleTimeOut"></param>
/// <returns></returns>
public static ReadReplyCode ReadData(BufferedSocket socket, long count, Stream storeStrm, bool storeToStream, int cmdIdleTimeOut)
{
ReadReplyCode replyCode = ReadReplyCode.Ok;
try{
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, cmdIdleTimeOut);
long readedCount = 0;
while (readedCount < count)
{
byte[] b = new byte[4000];
// Ensure that we don't get more data than needed
if ((count - readedCount) < 4000)
{
b = new byte[count - readedCount];
}
int countRecieved = socket.Receive(b);
if (countRecieved > 0)
{
readedCount += countRecieved;
if (storeToStream)
{
storeStrm.Write(b, 0, countRecieved);
}
}
// Client disconnected
else
{
throw new Exception("Client disconnected");
}
}
}
catch (Exception x) {
replyCode = ReadReplyCode.UnKnownError;
if (x is SocketException)
{
SocketException xS = (SocketException)x;
if (xS.ErrorCode == 10060)
{
replyCode = ReadReplyCode.TimeOut;
}
}
}
return(replyCode);
}
private string m_UserName = ""; // Holds loggedIn UserName.
#endregion Fields
#region Constructors
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="clientSocket">Referance to socket.</param>
/// <param name="server">Referance to IMAP server.</param>
/// <param name="logWriter">Log writer.</param>
internal IMAP_Session(Socket clientSocket,IMAP_Server server,_LogWriter logWriter)
{
m_pSocket = new BufferedSocket(clientSocket);
m_pServer = server;
m_pLogWriter = logWriter;
m_SessionID = Guid.NewGuid().ToString();
m_SessionStartTime = DateTime.Now;
m_LastDataTime = DateTime.Now;
m_pSocket.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.NoDelay,1);
// Start session proccessing
StartSession();
}
/// <summary>
/// Begins asynchronous recieveing.
/// </summary>
/// <param name="socket">Socket from where to get data.</param>
/// <param name="strm">Stream where to store data.</param>
/// <param name="lengthToRead">Length of data to read.</param>
/// <param name="maxLength">Maximum length of data which may read.</param>
/// <param name="tag">User data.</param>
/// <param name="callBack">Method to call, if receive completes.</param>
/// <param name="activityCallback">Method to call, if data block is completed. Data is retrieved as blocks,
/// for example data1 data2 ..., activity callback is called foreach data block.</param>
public static void BeginRecieve(BufferedSocket socket, MemoryStream strm, long lengthToRead, long maxLength, object tag, SocketCallBack callBack, SocketActivityCallback activityCallback)
{
Hashtable param = new Hashtable();
param.Add("recieveType", "len");
param.Add("socket", socket);
param.Add("strm", strm);
param.Add("lengthToRead", lengthToRead);
param.Add("maxLength", maxLength);
param.Add("tag", tag);
param.Add("callBack", callBack);
param.Add("activityCallback", activityCallback);
param.Add("readedCount", (long)0);
param.Add("recieveBuffer", new byte[0]);
ProccessData_Len(param);
}
/// <summary>
/// Is called from asynchronous socket if data is recieved.
/// </summary>
/// <param name="a"></param>
private static void OnRecievedData(IAsyncResult a)
{
Hashtable param = (Hashtable)a.AsyncState;
BufferedSocket socket = (BufferedSocket)param["socket"];
object tag = param["tag"];
SocketCallBack callBack = (SocketCallBack)param["callBack"];
SocketActivityCallback activityCallback = (SocketActivityCallback)param["activityCallback"];
byte[] buffer = (byte[])param["recieveBuffer"];
try{
// Call activity call back, if specified
if (activityCallback != null)
{
activityCallback(tag);
}
// Socket is closed by session, we don't need to get data or call callback method.
// This mainlty happens when session timesout and session is ended.
if (!socket.IsClosed)
{
int countReaded = socket.EndReceive(a);
if (countReaded > 0)
{
socket.AppendBuffer(buffer, countReaded);
if (param["recieveType"].ToString() == "term")
{
ProccessData_Term(param);
}
else
{
ProccessData_Len(param);
}
}
// Client disconnected
else
{
callBack(SocketCallBackResult.SocketClosed, (long)param["readedCount"], null, tag);
}
}
}
catch (Exception x) {
callBack(SocketCallBackResult.Exception, (long)param["readedCount"], x, tag);
}
}
private static void ProccessData_Len(Hashtable param)
{
BufferedSocket socket = (BufferedSocket)param["socket"];
MemoryStream strm = (MemoryStream)param["strm"];
object tag = param["tag"];
SocketCallBack callBack = (SocketCallBack)param["callBack"];
long dataAvailable = socket.AvailableInBuffer;
if (dataAvailable > 0)
{
byte[] data = new byte[dataAvailable];
// Ensure that we don't get more data than needed !!!
if (dataAvailable > ((long)param["lengthToRead"] - (long)param["readedCount"]))
{
data = new byte[(long)param["lengthToRead"] - (long)param["readedCount"]];
}
int countRecieved = socket.ReceiveFromFuffer(data);
// Increase readed count
param["readedCount"] = ((long)param["readedCount"] + data.Length);
if ((long)param["readedCount"] < (long)param["maxLength"])
{
strm.Write(data, 0, data.Length);
}
// Message size exceeded, we must junk stream data.
else if (strm.Length > 0)
{
strm.SetLength(0);
}
}
// We got all data successfully, call EndRecieve call back
if ((long)param["readedCount"] == (long)param["lengthToRead"])
{
callBack(SocketCallBackResult.Ok, (long)param["readedCount"], null, tag);
}
else
{
// Recieve next bytes
byte[] buff = new byte[1024];
param["recieveBuffer"] = buff;
socket.BeginReceive(buff, 0, buff.Length, 0, new AsyncCallback(OnRecievedData), param);
}
}
/// <summary>
/// Begins asynchronous recieveing.
/// </summary>
/// <param name="socket">Socket from where to get data.</param>
/// <param name="strm">Stream where to store data.</param>
/// <param name="maxLength">Maximum length of data which may read.</param>
/// <param name="terminator">Terminator string which terminates reading. eg '\r\n'.</param>
/// <param name="removeFromEnd">Removes following string at end of data.</param>
/// <param name="tag">User data.</param>
/// <param name="callBack">Method to call, if receive completes.</param>
/// <param name="activityCallback">Method to call, if data block is completed. Data is retrieved as blocks,
/// for example data1 data2 ..., activity callback is called foreach data block.</param>
public static void BeginRecieve(BufferedSocket socket,MemoryStream strm,long maxLength,string terminator,string removeFromEnd,object tag,SocketCallBack callBack,SocketActivityCallback activityCallback)
{
Hashtable param = new Hashtable();
param.Add("recieveType","term");
param.Add("socket",socket);
param.Add("strm",strm);
param.Add("removeFromEnd",removeFromEnd);
param.Add("tag",tag);
param.Add("callBack",callBack);
param.Add("activityCallback",activityCallback);
param.Add("stack",new _FixedStack(terminator));
param.Add("nextReadWriteLen",1);
param.Add("readedCount",(long)0);
param.Add("maxLength",maxLength);
param.Add("recieveBuffer",new byte[0]);
ProccessData_Term(param);
}
private string m_UserName = ""; // Holds loggedIn UserName.
#endregion Fields
#region Constructors
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="clientSocket">Referance to socket.</param>
/// <param name="server">Referance to SMTP server.</param>
/// <param name="logWriter">Log writer.</param>
internal SMTP_Session(Socket clientSocket,SMTP_Server server,_LogWriter logWriter)
{
m_pSocket = new BufferedSocket(clientSocket);
m_pServer = server;
m_pLogWriter = logWriter;
m_pMsgStream = new MemoryStream();
m_SessionID = Guid.NewGuid().ToString();
m_BodyType = BodyType.x7_bit;
m_Forward_path = new Hashtable();
m_CmdValidator = new SMTP_Cmd_Validator();
m_SessionStart = DateTime.Now;
m_LastDataTime = DateTime.Now;
m_pSocket.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.NoDelay,1);
// Start session proccessing
StartSession();
}
/// <summary>
/// Begins asynchronous recieveing.
/// </summary>
/// <param name="socket">Socket from where to get data.</param>
/// <param name="strm">Stream where to store data.</param>
/// <param name="maxLength">Maximum length of data which may read.</param>
/// <param name="terminator">Terminator string which terminates reading. eg '\r\n'.</param>
/// <param name="removeFromEnd">Removes following string at end of data.</param>
/// <param name="tag">User data.</param>
/// <param name="callBack">Method to call, if receive completes.</param>
/// <param name="activityCallback">Method to call, if data block is completed. Data is retrieved as blocks,
/// for example data1 data2 ..., activity callback is called foreach data block.</param>
public static void BeginRecieve(BufferedSocket socket, MemoryStream strm, long maxLength, string terminator, string removeFromEnd, object tag, SocketCallBack callBack, SocketActivityCallback activityCallback)
{
Hashtable param = new Hashtable();
param.Add("recieveType", "term");
param.Add("socket", socket);
param.Add("strm", strm);
param.Add("removeFromEnd", removeFromEnd);
param.Add("tag", tag);
param.Add("callBack", callBack);
param.Add("activityCallback", activityCallback);
param.Add("stack", new _FixedStack(terminator));
param.Add("nextReadWriteLen", 1);
param.Add("readedCount", (long)0);
param.Add("maxLength", maxLength);
param.Add("recieveBuffer", new byte[0]);
ProccessData_Term(param);
}
private string m_UserName = ""; // Holds loggedIn UserName.
#endregion Fields
#region Constructors
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="clientSocket">Referance to socket.</param>
/// <param name="server">Referance to IMAP server.</param>
/// <param name="logWriter">Log writer.</param>
internal IMAP_Session(Socket clientSocket,IMAP_Server server,SocketLogger logWriter)
{
m_pSocket = new BufferedSocket(clientSocket);
m_pServer = server;
m_SessionID = Guid.NewGuid().ToString();
m_SessionStartTime = DateTime.Now;
m_LastDataTime = DateTime.Now;
if(m_pServer.LogCommands){
m_pSocket.Logger = logWriter;
m_pSocket.Logger.SessionID = m_SessionID;
}
m_pSocket.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.NoDelay,1);
m_pSocket.Activity += new EventHandler(OnSocketActivity);
// Start session proccessing
StartSession();
}
/// <summary>
/// Reads reply from socket.
/// </summary>
/// <param name="socket"></param>
/// <param name="replyData">Data that has been readen from socket.</param>
/// <param name="maxLength">Maximum Length of data which may read.</param>
/// <param name="cmdIdleTimeOut">Command idle time out in milliseconds.</param>
/// <param name="terminator">Terminator string which terminates reading. eg '\r\n'.</param>
/// <param name="removeFromEnd">Removes following string from reply.NOTE: removes only if ReadReplyCode is Ok.</param>
/// <returns>Return reply code.</returns>
public static ReadReplyCode ReadData(BufferedSocket socket,out MemoryStream replyData,int maxLength,int cmdIdleTimeOut,string terminator,string removeFromEnd)
{
ReadReplyCode replyCode = ReadReplyCode.Ok;
replyData = null;
try{
socket.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.ReceiveTimeout,cmdIdleTimeOut);
replyData = new MemoryStream();
_FixedStack stack = new _FixedStack(terminator);
int nextReadWriteLen = 1;
while(nextReadWriteLen > 0){
//Read byte(s)
byte[] b = new byte[nextReadWriteLen];
int countRecieved = socket.Receive(b);
if(countRecieved > 0){
// Write byte(s) to buffer, if length isn't exceeded.
if(replyCode != ReadReplyCode.LengthExceeded){
replyData.Write(b,0,countRecieved);
}
// Write to stack(terminator checker)
nextReadWriteLen = stack.Push(b,countRecieved);
//---- Check if maximum length is exceeded ---------------------------------//
if(replyCode != ReadReplyCode.LengthExceeded && replyData.Length > maxLength){
replyCode = ReadReplyCode.LengthExceeded;
}
//--------------------------------------------------------------------------//
}
// Client disconnected
else{
throw new Exception("Client disconnected");
}
}
// If reply is ok then remove chars if any specified by 'removeFromEnd'.
if(replyCode == ReadReplyCode.Ok && removeFromEnd.Length > 0){
replyData.SetLength(replyData.Length - removeFromEnd.Length);
}
}
catch(Exception x){
replyCode = ReadReplyCode.UnKnownError;
if(x is SocketException){
SocketException xS = (SocketException)x;
if(xS.ErrorCode == 10060){
replyCode = ReadReplyCode.TimeOut;
}
}
}
return replyCode;
}
/// <summary>
/// Ends session, closes socket.
/// </summary>
private void EndSession()
{
try{
// Write logs to log file, if needed
if(m_pServer.LogCommands){
m_pSocket.Logger.Flush();
}
if(m_pSocket != null){
m_pSocket.Shutdown(SocketShutdown.Both);
m_pSocket.Close();
m_pSocket = null;
}
}
catch{ // We don't need to check errors here, because they only may be Socket closing errors.
}
finally{
m_pServer.RemoveSession(this);
}
}
/// <summary>
/// Reads line of data from Socket.
/// </summary>
/// <param name="socket"></param>
/// <returns></returns>
public static string ReadLine(BufferedSocket socket)
{
return(ReadLine(socket, 500, 60000));
}
/// <summary>
/// Begins asynchronous sending.
/// </summary>
/// <param name="socket">Socket where to send data.</param>
/// <param name="strm">Data to send.</param>
/// <param name="tag">User data.</param>
/// <param name="callBack">Method to call, if send completes.</param>
public static void BeginSend(BufferedSocket socket, Stream strm, object tag, SocketCallBack callBack)
{
SendDataBlock(socket, strm, tag, callBack);
}
/*
* /// <summary>
* /// Reads specified count of data from Socket.
* /// </summary>
* /// <param name="socket"></param>
* /// <param name="count">Number of bytes to read.</param>
* /// <param name="storeStrm"></param>
* /// <param name="storeToStream">If true stores readed data to stream, otherwise just junks data.</param>
* /// <param name="cmdIdleTimeOut"></param>
* /// <returns></returns>
* public static ReadReplyCode ReadData(Socket socket,long count,Stream storeStrm,bool storeToStream,int cmdIdleTimeOut)
* {
* ReadReplyCode replyCode = ReadReplyCode.Ok;
*
* try{
* socket.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.ReceiveTimeout,cmdIdleTimeOut);
*
* long readedCount = 0;
* while(readedCount < count){
* byte[] b = new byte[4000];
* // Ensure that we don't get more data than needed !!!
* if((count - readedCount) < 4000){
* b = new byte[count - readedCount];
* }
*
* int countRecieved = socket.Receive(b);
* if(countRecieved > 0){
* readedCount += countRecieved;
*
* if(storeToStream){
* storeStrm.Write(b,0,countRecieved);
* }
* }
* // Client disconnected
* else{
* throw new Exception("Client disconnected");
* }
* }
* }
* catch(Exception x){Console.WriteLine(x.Message);
* replyCode = ReadReplyCode.UnKnownError;
* }
*
* return replyCode;
* }
*/
#endregion
#region method ReadData
/// <summary>
/// Reads reply from socket.
/// </summary>
/// <param name="socket"></param>
/// <param name="replyData">Data that has been readen from socket.</param>
/// <param name="maxLength">Maximum Length of data which may read.</param>
/// <param name="cmdIdleTimeOut">Command idle time out in milliseconds.</param>
/// <param name="terminator">Terminator string which terminates reading. eg '\r\n'.</param>
/// <param name="removeFromEnd">Removes following string from reply.NOTE: removes only if ReadReplyCode is Ok.</param>
/// <returns>Return reply code.</returns>
public static ReadReplyCode ReadData(BufferedSocket socket, out MemoryStream replyData, int maxLength, int cmdIdleTimeOut, string terminator, string removeFromEnd)
{
ReadReplyCode replyCode = ReadReplyCode.Ok;
replyData = null;
try{
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, cmdIdleTimeOut);
replyData = new MemoryStream();
_FixedStack stack = new _FixedStack(terminator);
int nextReadWriteLen = 1;
while (nextReadWriteLen > 0)
{
//Read byte(s)
byte[] b = new byte[nextReadWriteLen];
int countRecieved = socket.Receive(b);
if (countRecieved > 0)
{
// Write byte(s) to buffer, if length isn't exceeded.
if (replyCode != ReadReplyCode.LengthExceeded)
{
replyData.Write(b, 0, countRecieved);
}
// Write to stack(terminator checker)
nextReadWriteLen = stack.Push(b, countRecieved);
//---- Check if maximum length is exceeded ---------------------------------//
if (replyCode != ReadReplyCode.LengthExceeded && replyData.Length > maxLength)
{
replyCode = ReadReplyCode.LengthExceeded;
}
//--------------------------------------------------------------------------//
}
// Client disconnected
else
{
throw new Exception("Client disconnected");
}
}
// If reply is ok then remove chars if any specified by 'removeFromEnd'.
if (replyCode == ReadReplyCode.Ok && removeFromEnd.Length > 0)
{
replyData.SetLength(replyData.Length - removeFromEnd.Length);
}
}
catch (Exception x) {
replyCode = ReadReplyCode.UnKnownError;
if (x is SocketException)
{
SocketException xS = (SocketException)x;
if (xS.ErrorCode == 10060)
{
replyCode = ReadReplyCode.TimeOut;
}
}
}
return(replyCode);
}
private static void ProccessData_Term(Hashtable param)
{
BufferedSocket socket = (BufferedSocket)param["socket"];
MemoryStream strm = (MemoryStream)param["strm"];
string removeFromEnd = (string)param["removeFromEnd"];
_FixedStack stack = (_FixedStack)param["stack"];
int nextReadWriteLen = (int)param["nextReadWriteLen"];
object tag = param["tag"];
SocketCallBack callBack = (SocketCallBack)param["callBack"];
while (nextReadWriteLen > 0)
{
// We used buffer, request more data
if (socket.AvailableInBuffer < nextReadWriteLen)
{
// Store nextReadWriteLen for next call of this command
param["nextReadWriteLen"] = nextReadWriteLen;
// Recieve next bytes
byte[] buff = new byte[1024];
param["recieveBuffer"] = buff;
socket.BeginReceive(buff, 0, buff.Length, 0, new AsyncCallback(OnRecievedData), param);
// End this method, if data arrives, this method is called again
return;
}
//Read byte(s)
byte[] b = new byte[nextReadWriteLen];
int countRecieved = socket.ReceiveFromFuffer(b);
// Increase readed count
param["readedCount"] = ((long)param["readedCount"] + countRecieved);
// Write byte(s) to buffer, if length isn't exceeded.
if ((long)param["readedCount"] < (long)param["maxLength"])
{
strm.Write(b, 0, countRecieved);
}
// Message size exceeded, we must junk stream data.
else if (strm.Length > 0)
{
strm.SetLength(0);
}
// Write to stack(terminator checker)
nextReadWriteLen = stack.Push(b, countRecieved);
}
// If we reach so far, then we have successfully readed data
if ((long)param["readedCount"] < (long)param["maxLength"])
{
// Remove "removeFromEnd" from end
if (removeFromEnd.Length > 0 && strm.Length > removeFromEnd.Length)
{
strm.SetLength(strm.Length - removeFromEnd.Length);
}
strm.Position = 0;
// We got all data successfully, call EndRecieve call back
callBack(SocketCallBackResult.Ok, (long)param["readedCount"], null, tag);
}
else
{
callBack(SocketCallBackResult.LengthExceeded, (long)param["readedCount"], null, tag);
}
}
/// <summary>
/// Reads specified count of data from Socket.
/// </summary>
/// <param name="socket"></param>
/// <param name="count">Number of bytes to read.</param>
/// <param name="storeStrm"></param>
/// <param name="storeToStream">If true stores readed data to stream, otherwise just junks specified amount of data.</param>
/// <param name="cmdIdleTimeOut"></param>
/// <returns></returns>
public static ReadReplyCode ReadData(BufferedSocket socket,long count,Stream storeStrm,bool storeToStream,int cmdIdleTimeOut)
{
ReadReplyCode replyCode = ReadReplyCode.Ok;
try{
socket.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.ReceiveTimeout,cmdIdleTimeOut);
long readedCount = 0;
while(readedCount < count){
byte[] b = new byte[4000];
// Ensure that we don't get more data than needed
if((count - readedCount) < 4000){
b = new byte[count - readedCount];
}
int countRecieved = socket.Receive(b);
if(countRecieved > 0){
readedCount += countRecieved;
if(storeToStream){
storeStrm.Write(b,0,countRecieved);
}
}
// Client disconnected
else{
throw new Exception("Client disconnected");
}
}
}
catch(Exception x){
replyCode = ReadReplyCode.UnKnownError;
if(x is SocketException){
SocketException xS = (SocketException)x;
if(xS.ErrorCode == 10060){
replyCode = ReadReplyCode.TimeOut;
}
}
}
return replyCode;
}
/// <summary>
/// Begins asynchronous sending.
/// </summary>
/// <param name="socket">Socket where to send data.</param>
/// <param name="strm">Data to send.</param>
/// <param name="tag">User data.</param>
/// <param name="callBack">Method to call, if send completes.</param>
public static void BeginSend(BufferedSocket socket,Stream strm,object tag,SocketCallBack callBack)
{
SendDataBlock(socket,strm,tag,callBack);
}
/// <summary>
/// Begins asynchronous recieveing.
/// </summary>
/// <param name="socket">Socket from where to get data.</param>
/// <param name="strm">Stream where to store data.</param>
/// <param name="lengthToRead">Length of data to read.</param>
/// <param name="maxLength">Maximum length of data which may read.</param>
/// <param name="tag">User data.</param>
/// <param name="callBack">Method to call, if receive completes.</param>
/// <param name="activityCallback">Method to call, if data block is completed. Data is retrieved as blocks,
/// for example data1 data2 ..., activity callback is called foreach data block.</param>
public static void BeginRecieve(BufferedSocket socket,MemoryStream strm,long lengthToRead,long maxLength,object tag,SocketCallBack callBack,SocketActivityCallback activityCallback)
{
Hashtable param = new Hashtable();
param.Add("recieveType","len");
param.Add("socket",socket);
param.Add("strm",strm);
param.Add("lengthToRead",lengthToRead);
param.Add("maxLength",maxLength);
param.Add("tag",tag);
param.Add("callBack",callBack);
param.Add("activityCallback",activityCallback);
param.Add("readedCount",(long)0);
param.Add("recieveBuffer",new byte[0]);
ProccessData_Len(param);
}
/// <summary>
/// Reads line of data from Socket.
/// </summary>
/// <param name="socket"></param>
/// <returns></returns>
public static string ReadLine(BufferedSocket socket)
{
return ReadLine(socket,500,60000);
}
/// <summary>
/// Starts sending block of data.
/// </summary>
/// <param name="socket">Socket where to send data.</param>
/// <param name="strm">Data to send.</param>
/// <param name="tag">User data.</param>
/// <param name="callBack">Method to call, if send completes.</param>
private static void SendDataBlock(BufferedSocket socket,Stream strm,object tag,SocketCallBack callBack)
{
byte[] data = new byte[1024];
int countReaded = strm.Read(data,0,data.Length);
socket.Socket.BeginSend(data,0,countReaded,0,new AsyncCallback(OnSendedData),new object[]{socket,strm,tag,callBack});
}
/// <summary>
/// Reads line of data from Socket.
/// </summary>
/// <param name="socket"></param>
/// <param name="maxLen"></param>
/// <param name="idleTimeOut"></param>
/// <returns></returns>
public static string ReadLine(BufferedSocket socket,int maxLen,int idleTimeOut)
{
MemoryStream storeStream = null;
ReadReplyCode code = ReadData(socket,out storeStream,maxLen,idleTimeOut,"\r\n","\r\n");
if(code != ReadReplyCode.Ok){
throw new ReadException(code,code.ToString());
}
return System.Text.Encoding.Default.GetString(storeStream.ToArray()).Trim();
}
/// <summary>
/// Ends session, closes socket.
/// </summary>
private void EndSession()
{
if(m_pSocket != null){
m_pSocket.Shutdown(SocketShutdown.Both);
m_pSocket.Close();
m_pSocket = null;
}
m_pServer.RemoveSession(this);
// Write logs to log file, if needed
if(m_pServer.LogCommands){
m_pLogWriter.AddEntry("//----- Sys: 'Session:'" + this.SessionID + " removed " + DateTime.Now);
m_pLogWriter.Flush();
}
}
/// <summary>
/// Sends line to Socket.
/// </summary>
/// <param name="socket"></param>
/// <param name="lineData"></param>
public static void SendLine(BufferedSocket socket,string lineData)
{
byte[] byte_data = System.Text.Encoding.Default.GetBytes(lineData + "\r\n");
int countSended = socket.Send(byte_data);
if(countSended != byte_data.Length){
throw new Exception("Send error, didn't send all bytes !");
}
}
