1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
| protected void Button1_Click(object sender, EventArgs e)
{
// Create a TCP client for a TCP connection
TcpClient tcpClient = new TcpClient();
txtLog.Text = "DEMANDE :<br>Se connecter sur " + txtServer.Text + " port " + txtPort.Text + "<br><br>";
// Connect this TCP client to the server IP/name and port specified in the form
tcpClient.Connect(txtServer.Text, Convert.ToInt32(txtPort.Text));
// Create a network stream to retrieve data from the TCP client
NetworkStream netStream = tcpClient.GetStream();
// We need a stream reader to be able to read the network stream
System.IO.StreamReader strReader = new System.IO.StreamReader(netStream, Encoding.ASCII);
// If the connection was made successfully
if (tcpClient.Connected)
{
txtLog.Text += "REPONSE :<br>" + strReader.ReadLine() + "<br><br>";
// Buffer to which we're going to write the commands
byte[] WriteBuffer = new byte[1024];
// We're passing ASCII characters
ASCIIEncoding enc = new System.Text.ASCIIEncoding();
// Pass the username to the server
WriteBuffer = enc.GetBytes("USER " + txtUser.Text + "\r\n");
txtLog.Text += "DEMANDE :<br>Here's the username: " + txtUser.Text + "<br><br>";
netStream.Write(WriteBuffer, 0, WriteBuffer.Length);
txtLog.Text += "REPONSE :<br>" + strReader.ReadLine() + "<br><br>";
// Pass the password to the server
WriteBuffer = enc.GetBytes("PASS " + txtPass.Text + "\r\n");
txtLog.Text += "DEMANDE :<br>Here's the password: " + txtPass.Text + "<br><br>";
netStream.Write(WriteBuffer, 0, WriteBuffer.Length);
txtLog.Text += "REPONSE :<br>" + strReader.ReadLine() + "<br><br>";
// Maintenant que l'on est connecté, on demande la liste des messages
WriteBuffer = enc.GetBytes("LIST\r\n");
netStream.Write(WriteBuffer, 0, WriteBuffer.Length);
string ListMessage;
txtLog.Text += "<b>Liste des messages</b><br><br>";
// On récupère le nombre de messages
int nbrMessage = 2;
int i = 1;
while (true)
{
ListMessage = strReader.ReadLine();
if (ListMessage == ".")
{
// It's the last message so exit the loop and continue
break;
}
else
{
if (i == 1)
{
//Premier passage : on récupère le nombre de messages
nbrMessage = Convert.ToInt32(ListMessage.Substring(4, (ListMessage.IndexOf("m") - 5)).ToString());
txtLog.Text += "Nombre de messages : " + nbrMessage.ToString() + "<br><br>Numéro et taille : <br>";
i++;
continue;
}
else
{
// List the message
txtLog.Text += ListMessage + "<br>";
i++;
continue;
}
}
}
txtLog.Text += "<br><b>Affichage des messages</b><br>";
for (int k = 1; k <= nbrMessage; k++)
{
// Maintenant, afficher les messages
txtLog.Text += "<i>Message numéro " + k.ToString() + "</i><br>";
WriteBuffer = enc.GetBytes("RETR " + k.ToString() + " \r\n");
netStream.Write(WriteBuffer, 0, WriteBuffer.Length);
string MESSAGE="";
string From="";
string Sujet="";
string Contenu="";
string sTemp = strReader.ReadLine();
if (sTemp[0] != '-')
{
while (sTemp != ".")
{
MESSAGE += sTemp + "<br>";
sTemp = strReader.ReadLine();
if (sTemp.Length != 0)
{
if (sTemp.Length >= 5)
{
if (sTemp.Substring(0, 5) == "From:")
From = sTemp.Substring(5, sTemp.Length - 5);
}
if (sTemp.Length >= 8)
{
if (sTemp.Substring(0, 8) == "Subject:")
Sujet = sTemp.Substring(8, sTemp.Length - 8);
}
}
}
}
try { Contenu = MESSAGE.Substring(MESSAGE.IndexOf("Content-Type: text/html; charset=ISO-8859-1")); }
catch { }
Contenu = Contenu.Trim().Substring(0, Contenu.Length - 36);
Contenu = Contenu.Trim().Substring(43, Contenu.Length - 43); // Suppression de Content-Type: text/html; charset=ISO-8859-1 et du code a la fin
if (Contenu.IndexOf("Content-Transfer-Encoding: quoted-printable") > -1) Contenu = Contenu.Trim().Substring(Contenu.IndexOf("Content-Transfer-Encoding: quoted-printable") + 43, Contenu.Length - (Contenu.IndexOf("Content-Transfer-Encoding: quoted-printable") + 43));
txtLog.Text += "from : " + From + "<br>Sujet : " + Sujet + "<br>Corps : <input type=text value=\"" + Contenu.Replace("\"","'")+"\"><br>";
}
txtLog.Text += "DEMANDE :<br>Merci, déconnexion...<br><br>";
WriteBuffer = enc.GetBytes("QUIT\r\n");
netStream.Write(WriteBuffer, 0, WriteBuffer.Length);
txtLog.Text += "REPONSE :<br>" + strReader.ReadLine();
tcpClient.Close();
}
else txtLog.Text = "Non connecté";
} |
