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// This file is part of the Noddybox.WindowsPhone C# suite.
//
// Noddybox.Emulation is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Noddybox.Emulation is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Noddybox.Emulation. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (c) 2012 Ian Cowburn
//
using System;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
namespace Noddybox.WindowsPhone.Net
{
/// <summary>
/// Provides a wrapper around a stream to interact with servers
/// </summary>
public class ServerDialog
{
// -------------------------------------------------
// - PUBLIC MEMBERS -
// -------------------------------------------------
/// <summary>
/// Used for returns from the server
/// </summary>
public class Reply
{
/// <summary>
/// Default constructor - initializes all fields to default values
/// </summary>
public Reply()
{
m_code=-1;
m_text="";
}
/// <summary>
/// The code returned by the server
/// </summary>
public int Code
{
get {return m_code;}
set {m_code=value;}
}
/// <summary>
/// The text returned by the server
/// </summary>
public string Text
{
get {return m_text;}
set {m_text=value;}
}
private int m_code;
private string m_text;
}
/// <summary>
/// Default constructor - initializes all fields to default values
/// </summary>
public ServerDialog()
{
m_encode=new System.Text.ASCIIEncoding();
m_code=new Regex("^[0-9][0-9][0-9]");
m_code_end=new Regex("^[0-9][0-9][0-9][^-]");
}
/// <summary>
/// Sends a command to the server and returns the reply
/// </summary>
public Reply Send(Stream str, string command)
{
Reply r=new Reply();
if (command!=null)
{
byte[] b=ToBytes(command);
str.Write(b,0,b.Length);
}
GetResult(str,r);
return r;
}
// -------------------------------------------------
// - PRIVATE MEMBERS -
// -------------------------------------------------
private ASCIIEncoding m_encode;
private Regex m_code;
private Regex m_code_end;
private byte[] ToBytes(string s)
{
return m_encode.GetBytes(s);
}
private string GetLine(Stream str)
{
byte[] b=new byte[1];
int c;
string r="";
while((c=str.ReadByte())!=-1)
{
b[0]=(byte)c;
r+=m_encode.GetString(b);
if (c==10)
{
break;
}
}
return r;
}
private void GetResult(Stream str, Reply r)
{
string s;
string all="";
bool first_line=true;
do
{
s=GetLine(str);
if (first_line)
{
if (m_code.IsMatch(s))
{
r.Code=Convert.ToInt32(s.Substring(0,3));
}
else
{
throw new NetException(NetException.Type.ALL_NoReplyCode);
}
first_line=false;
}
if (m_code.IsMatch(s))
{
all+=s.Substring(4);
}
else
{
all+=s;
}
} while (!m_code_end.IsMatch(s));
all=all.TrimEnd(null);
r.Text=all;
}
}
}
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