public AcceptKeyDialog(Network network, ReceivedKeyEventArgs args)
: base(null, "AcceptKeyDialog")
{
var publicKey = new PublicKey(args.Key.Info, args.Key.Key);
keyTextView.Buffer.Text = publicKey.ToArmoredString();
string nodeID = FileFind.Common.SHA512Str(publicKey.Key);
nodeIdLabel.Text = nodeID;
if (args.Node != null) {
if (nodeID.ToUpper() != args.Node.NodeID.ToUpper()) {
throw new Exception ("The key recieved does not match this user!");
}
nicknameLabel.Text = args.Node.NickName;
} else if (args.Connection != null) {
var conn = args.Connection;
connectionLabel.Text = String.Format("{0} ({1})", conn.RemoteAddress, conn.Incoming ? "Incoming" : "Outgoing");
nicknameLabel.Text = args.Key.Info;
connectionLabel.Show();
connectionTitleLabel.Show();
} else {
nicknameLabel.Text = args.Key.Info;
}
denyKeyButtonLabel.Text = String.Format ("Deny Key ({0})", secondsLeft);
}
private void on_saveKeyButton_clicked(object o, EventArgs args)
{
FileSelector selector = new FileSelector("Save Public Key...", FileChooserAction.Save);
selector.TransientFor = dialog;
selector.CurrentName = nicknameEntry.Text + ".mpk";
if (selector.Run() == (int)ResponseType.Ok) {
string publicKey = new PublicKey(nicknameEntry.Text, provider.ToXmlString(false)).ToArmoredString();
File.WriteAllText(selector.Filename, publicKey);
}
selector.Destroy();
}
private void on_copyKeyButton_clicked(object o, EventArgs args)
{
string publicKey = new PublicKey(nicknameEntry.Text, provider.ToXmlString(false)).ToArmoredString();
Gtk.Clipboard.GetForDisplay(Gdk.Display.Default, Gdk.Atom.Intern("CLIPBOARD", true)).Text = publicKey;
Gui.ShowMessageDialog("The clipboard has been set.", dialog);
}
public TrustedNodeInfo(PublicKey key)
{
this.Identifier = key.Nickname;
this.PublicKey = key;
}
public void AddPublicKey(PublicKey key)
{
TrustedNodeInfo info = new TrustedNodeInfo(key);
this.trustedNodes.Add(info.NodeID, info);
if (nodes.ContainsKey(info.NodeID)) {
Node node = nodes[info.NodeID];
if (!node.FinishedKeyExchange) {
node.CreateNewSessionKey();
}
}
Core.Settings.SyncNetworkInfo();
}
public static PublicKey Parse(string armoredText)
{
PublicKey result = new PublicKey();
var headers = new Dictionary<string, string>();
string line = null;
string crc = null;
StringBuilder data = new StringBuilder();
ParseState state = ParseState.Start;
using (var reader = new StringReader(armoredText)) {
while ((line = reader.ReadLine()) != null) {
line = line.Trim();
switch (state) {
case ParseState.Start:
if (line != BEGIN_LINE)
goto done;
state = ParseState.Header;
break;
case ParseState.Header:
if (line == String.Empty)
state = ParseState.Body;
else {
int i = line.IndexOf(": ");
if (i <= 0)
goto done;
string name = line.Substring(0, i).Trim();
string val = line.Substring(i + 2).Trim();
headers.Add(name, val);
}
break;
case ParseState.Body:
var match = Regex.Match(line, "^=(....)$");
if (match.Success) {
crc = match.Groups[1].Captures[0].Value;
state = ParseState.End;
} else if (line == END_LINE) {
state = ParseState.End;
} else {
data.Append(line);
}
break;
case ParseState.End:
goto done;
}
}
}
done:
if (state != ParseState.End)
throw new Exception(String.Format("Malformed/missing {0}", Enum.GetName(typeof(ParseState), state).ToLower()));
if (String.IsNullOrEmpty(crc))
throw new Exception("Missing checksum");
byte[] dataBytes = null;
string dataString = null;
try {
dataBytes = Convert.FromBase64String(data.ToString());
dataString = Encoding.UTF8.GetString(dataBytes);
dataBytes = Encoding.UTF8.GetBytes(dataString);
} catch (Exception) {
throw new Exception("Invalid key data");
}
byte[] expectedHash = null;
byte[] actualHash = null;
try {
expectedHash = Convert.FromBase64String(crc);
actualHash = s_CRC24.ComputeHash(dataBytes);
} catch (Exception) {
throw new Exception("Invalid checksum");
}
if (!expectedHash.SequenceEqual(actualHash))
throw new Exception("Checksum does not match");
if (headers.ContainsKey("Nickname"))
result.Nickname = headers["Nickname"];
result.Key = dataString;
return result;
}
