private void GetMail()
{
string mailfrom = logform.getUsrName();
string mailpass = logform.getUsrPass();
try {
Task.Run(() =>
{
using (ImapClient client = new ImapClient("imap.gmail.com", 993, mailfrom, mailpass, AuthMethod.Login, true))
{
if (client.Supports("IDLE") == false)
{
MessageBox.Show("Server do not support IMAP IDLE");
return;
}
string cryptedAppSign = AesCrypt.Encrypt("UrfaDiyarbakir");
var uids = client.Search(SearchCondition.Text(cryptedAppSign));
int index = 0;
foreach (var id in uids)
{
var m = client.GetMessage(id, FetchOptions.Normal);
int a = m.Body.IndexOf("---AppSign---") + "---AppSign---".Length;
int b = m.Body.IndexOf("---Username---");
int c = m.Body.IndexOf("---Username---") + "---Username---".Length;
int d = m.Body.IndexOf("---Body---");
int e = m.Body.IndexOf("---Body---") + "---Body---".Length;
int f = m.Body.IndexOf("---Sign---");
string appsign = m.Body.Substring(0, m.Body.IndexOf("---AppSign---"));
string Username = AesCrypt.Decrypt(m.Body.Substring(a, b - a));
string sign = m.Body.Substring(e, f - e);
string encryptedBody = m.Body.Substring(c, d - c);
string dir = EncryptedMailApp.LoginForm.user;
char[] charsToTrim = { ' ', '"' };
string encryptedAES = FbClient.Get(EncryptedMailApp.LoginForm.user + "/friends/" + Username + "/aes").Body.ToString().Trim(charsToTrim);
string friendPublic = FbClient.Get(EncryptedMailApp.LoginForm.user + "/friends/" + Username + "/publicKey").Body.ToString().Trim(charsToTrim);
string aes;
string decryptedBody;
string decryptedSubject;
try
{
string decryptetaes = RSAobj.Decrypt(encryptedAES);
aes = decryptetaes;
}
catch
{
aes = null;
Console.WriteLine("error on decrypting aes ");
}
try
{
decryptedBody = AesCrypt.DecryptParam(encryptedBody, aes);
}
catch
{
decryptedBody = null;
Console.WriteLine("error on decrpting body");
}
try
{
decryptedSubject = AesCrypt.DecryptParam(m.Subject, aes);
}
catch
{
decryptedSubject = null;
Console.WriteLine("error on decrpting subject");
}
if (RSAobj.VerifySign(decryptedBody, sign, friendPublic) == true)
{
Console.WriteLine("match");
signed = true;
}
else
{
Console.WriteLine("missmatch");
signed = false;
}
if (messages[index, 0] == null)
{
messages[index, 0] = Username;
messages[index, 1] = decryptedSubject;
messages[index, 2] = decryptedBody;
}
listBox1.Items.Add(new ListItem {
Name = "From: " + Username + " Subject: " + decryptedSubject, Value = index.ToString()
});
index++;
foreach (Attachment attachment in m.Attachments)
{
byte[] allBytes = new byte[attachment.ContentStream.Length];
int bytesread = attachment.ContentStream.Read(allBytes, 0, (int)attachment.ContentStream.Length);
if (System.IO.Directory.Exists("data\\" + dir + "\\attachments") == false)
{
System.IO.Directory.CreateDirectory("data\\" + dir + "\\attachments");
}
string destinationFile = "data\\" + dir + "\\attachments\\" + attachment.Name;
BinaryWriter writer = new BinaryWriter(new FileStream(destinationFile, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None));
writer.Write(allBytes);
writer.Close();
if (attachment.Name.EndsWith("crp"))
{
EncryptedMailApp.CryptoStuff.DecryptFile(password, destinationFile, destinationFile.Replace("crp", ""));
}
//MessageBox.Show("saved attachment at attachments, attachment count is : "+ m.Attachments.Count);
}
}
this.listBox1.MouseDoubleClick += new MouseEventHandler(listBox1_MouseDoubleClick);
}
});
}
catch (InvalidCredentialsException)
{
MessageBox.Show("The server rejected the supplied credentials.");
}
}