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| using System;
using System.Net.Sockets;
using System.IO;
using System.Collections;
using System.Text.RegularExpressions;
struct HeadMail
{
public string From;
public string To;
public string Date;
}
namespace Gestion
{
class Mail
{
// VARIABLES
ArrayList head;
ArrayList body;
ArrayList brutCodedJoinPieces; // Contains brutCodedJoinPieces
ArrayList CodedJoinPieces; // Contains a list of CodedJoinPieces
HeadMail headMail;
string localDirectory;
int mailNumber;
NetworkStream networkStream; // Handle sur la connexion
// CONSTRUCTEURS
public Mail(NetworkStream ns, int number, string localDirectory)
{
this.head = new ArrayList();
this.body = new ArrayList();
this.brutCodedJoinPieces = new ArrayList();
this.CodedJoinPieces = new ArrayList();
this.networkStream = ns;
this.mailNumber = number;
this.localDirectory = localDirectory;
this.GetMessage(this.mailNumber);
this.GetHeadersMail(head);
//this.GetJoinPieces(); // Doit traiter les pieces jointes divisés (A FAIRE)
foreach (ArrayList pieceJointe in CodedJoinPieces)
{
JoinPiece jp = new JoinPiece();
jp.GetData(pieceJointe);
jp.Export(localDirectory);
}
}
// PROPRIETES
public ArrayList Head
{
get { return head; }
}
public ArrayList Body
{
get { return body; }
}
// METHODES
public static void Send(string cmd, NetworkStream ns)
{
string input = cmd + "\r\n";
Byte[] outbytes = System.Text.Encoding.ASCII.GetBytes(input.ToCharArray());
ns.Write(outbytes, 0, outbytes.Length);
}
public static ArrayList Recv(NetworkStream ns, string lastChar)
{
ArrayList list = new ArrayList();
string returnValue = "";
StreamReader sr = new StreamReader(ns);
while (returnValue != lastChar)
{
returnValue = sr.ReadLine();
list.Add(returnValue.ToString());
}
return list;
}
public static string Recv(NetworkStream ns, int length)
{
string returnValue = "";
byte[] read = new byte[length];
ns.Read(read, 0, length);
returnValue = System.Text.Encoding.ASCII.GetString(read);
return returnValue;
}
private void GetMessage(int number)
{
Send("retr " + number, networkStream);
ArrayList brutmail = Recv(networkStream, ".");
string boundary = SearchBoundary(brutmail);
ArrayList pointeur;
pointeur = head;
Regex regEx = new Regex("^([-]*)?" + boundary + ".*", RegexOptions.IgnoreCase);
foreach (string line in brutmail)
{
if (regEx.IsMatch(line))
{
if ((pointeur != body) && (pointeur != head) && (boundary != ""))
{
if (pointeur.Count > 0)
CodedJoinPieces.Add(pointeur);
pointeur = new ArrayList();
continue;
}
if ((pointeur == body) && (boundary != ""))
{
pointeur = new ArrayList();
continue;
}
if (pointeur == head)
{
pointeur = body;
continue;
}
}
if ((pointeur.Count == 0) && (line == ""))
continue;
pointeur.Add(line);
}
if ((pointeur != body) && (pointeur != head) && (boundary != ""))
{
if (pointeur.Count > 0)
CodedJoinPieces.Add(pointeur);
}
}
/// <summary>
/// Permet de séparer les pieces jointes multiples
/// </summary>
private void GetJoinPieces()
{
string boundary = SearchBoundary(brutCodedJoinPieces);
// Si boundary == "" : Alors il n'existe qu'une seule piece jointe
if (boundary.ToString() == "")
{
this.CodedJoinPieces.Add(brutCodedJoinPieces);
return;
}
// Sinon il existe plusieurs pieces jointes :
ArrayList pieceJoint = new ArrayList();
foreach (string line in brutCodedJoinPieces)
{
if (line == boundary)
{
if (pieceJoint.Count > 0)
{
CodedJoinPieces.Add(pieceJoint);
pieceJoint = new ArrayList();
}
continue;
}
pieceJoint.Add(line);
}
CodedJoinPieces.Add(pieceJoint);
}
public static string SearchBoundary(ArrayList brutMail)
{
Regex regBoundary = new Regex("boundary=\"(.*)\"$", RegexOptions.IgnoreCase);
string boundary = "";
foreach (string line in brutMail)
{
if (regBoundary.IsMatch(line))
{
boundary = regBoundary.Match(line).Captures[0].ToString();
break;
}
}
string[] boundaryLine = boundary.Split('"');
if (boundaryLine.Length > 1)
return boundaryLine[1];
else
return "";
}
/// <summary>
/// Sépare la partie en tete, message et pieces jointes
/// </summary>
/// <param name="mailcontent"></param>
private void GetHeadersMail(ArrayList mailContent)
{
Regex regDate = new Regex("^Date:", RegexOptions.IgnoreCase);
Regex regFrom = new Regex("^From:", RegexOptions.IgnoreCase);
Regex regTo = new Regex("^To:", RegexOptions.IgnoreCase);
foreach (string line in mailContent)
{
if (regDate.IsMatch(line) && (this.headMail.Date == null))
this.headMail.Date = line.Substring(5).Trim();
if (regFrom.IsMatch(line) && (this.headMail.From == null))
this.headMail.From = line.Substring(5).Trim();
if (regTo.IsMatch(line) && (this.headMail.To == null))
this.headMail.To = line.Substring(3).Trim();
}
}
}
} |
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