/// <summary>
/// Initializes a new instance of the <see cref="ProtocolMessageEventArgs"/> class.
/// </summary>
/// <param name="sessionID">The session ID.</param>
/// <param name="requestCommand">The request command.</param>
/// <param name="requestParameters">The request parameters.</param>
/// <param name="reply">The reply.</param>
public ProtocolMessageEventArgs(int sessionID, string requestCommand = null, string[] requestParameters = null, FtpReply reply = null)
{
SessionID = sessionID;
RequestCommand = requestCommand;
RequestParameters = requestParameters;
Reply = reply;
}
/// <summary>
/// Initializes a new instance of the <see cref="ProtocolMessageEventArgs"/> class.
/// </summary>
/// <param name="sessionID">The session ID.</param>
/// <param name="requestCommand">The request command.</param>
/// <param name="requestParameters">The request parameters.</param>
/// <param name="reply">The reply.</param>
public ProtocolMessageEventArgs(int sessionID, string requestCommand = null, string[] requestParameters = null, FtpReply reply = null)
{
SessionID = sessionID;
RequestCommand = requestCommand;
RequestParameters = requestParameters;
Reply = reply;
}
/// <summary>
/// Throws the exception given a reply.
/// </summary>
/// <param name="reply">The reply.</param>
/// <exception cref="FtpFileException"></exception>
/// <exception cref="FtpProtocolException"></exception>
/// <exception cref="FtpTransportException"></exception>
internal void ThrowException(FtpReply reply)
{
if (reply.Code.Class == FtpReplyCodeClass.Filesystem)
{
throw new FtpFileException(string.Format("File error. Code={0} ('{1}')", reply.Code.Code, reply.Lines[0]), reply.Code);
}
if (reply.Code.Class == FtpReplyCodeClass.Connections)
{
throw new FtpTransportException(string.Format("Connection error. Code={0} ('{1}')", reply.Code.Code, reply.Lines[0]));
}
throw new FtpProtocolException(string.Format("Expected other reply than {0} ('{1}')", reply.Code.Code, reply.Lines[0]), reply.Code);
}
/// <summary>
/// Expects the specified reply.
/// </summary>
/// <param name="reply">The reply.</param>
/// <param name="codes">The codes.</param>
/// <returns></returns>
public FtpReply Expect(FtpReply reply, params int[] codes)
{
if (!codes.Any(code => code == reply.Code))
{
// When 214 is unexpected, it may create a command/reply inconsistency (a 1-reply shift)
// so the best option here is to disconnect, it will reset the command/reply pairs
if (reply.Code == 214)
{
Connection.Disconnect();
}
ThrowException(reply);
}
return(reply);
}
/// <summary>
/// Processes the read reply.
/// </summary>
/// <param name="stream">The stream.</param>
/// <returns></returns>
private FtpReply ProcessReadReply(Stream stream)
{
var reply = new FtpReply();
{
for (;;)
{
var line = ReadLine(() => ReadByte(stream));
if (line == null)
{
Connection.Disconnect();
throw new FtpTransportException(string.Format("Error while reading reply ({0})",
reply.Lines != null ? String.Join("//", reply.Lines) : "null"));
}
if (!reply.ParseLine(line))
{
break;
}
}
}
Connection.Client.OnReply(new ProtocolMessageEventArgs(Connection.ID, null, null, reply));
return(reply);
}