public void StreamStartHandle(XmppStream xmppStream, Stream stream, XmppHandlerContext context)
{
var streamHeader = new StringBuilder();
streamHeader.AppendLine("<?xml version='1.0' encoding='UTF-8'?>");
streamHeader.AppendFormat("<stream:{0} xmlns:{0}='{1}' xmlns='{2}' from='{3}' id='{4}' version='1.0'>",
Uri.PREFIX, Uri.STREAM, Uri.CLIENT, stream.To, xmppStream.Id);
context.Sender.SendTo(xmppStream, streamHeader.ToString());
var features = new Features();
features.Prefix = Uri.PREFIX;
if (xmppStream.Authenticated)
{
features.AddChild(new Bind());
features.AddChild(new Core.protocol.iq.session.Session());
}
else
{
features.Mechanisms = new Mechanisms();
var listener = (BoshXmppListener)(context.XmppGateway.GetXmppListener("Bosh Listener"));
var storage = new DbLdapSettingsStore();
storage.GetLdapSettings(xmppStream.Domain);
if (!storage.EnableLdapAuthentication || listener.GetXmppConnection(xmppStream.ConnectionId) != null)
{
features.Mechanisms.AddChild(new Mechanism(MechanismType.DIGEST_MD5));
}
else
{
features.Mechanisms.AddChild(new Mechanism(MechanismType.PLAIN));
}
features.Mechanisms.AddChild(new Element("required"));
features.Register = new Register();
}
streamHeader.Append(features.ToString());
context.Sender.SendTo(xmppStream, features);
}
private void ProcessAuth(XmppStream stream, Auth auth, XmppHandlerContext context)
{
AuthData authStep;
lock (authData)
{
authData.TryGetValue(stream.Id, out authStep);
}
if (auth.MechanismType == MechanismType.DIGEST_MD5)
{
if (authStep != null)
{
context.Sender.SendToAndClose(stream, XmppFailureError.TemporaryAuthFailure);
}
else
{
lock (authData)
{
authData[stream.Id] = new AuthData();
}
var challenge = GetChallenge(stream.Domain);
context.Sender.SendTo(stream, challenge);
}
}
else if (auth.MechanismType == MechanismType.PLAIN)
{
if (auth.TextBase64 == null)
{
context.Sender.SendToAndClose(stream, XmppFailureError.TemporaryAuthFailure);
}
else
{
string[] array = auth.TextBase64.Split('\0');
if (array.Length == 3)
{
string userName = array[1];
string password = array[2];
var storage = new DbLdapSettingsStore();
storage.GetLdapSettings(stream.Domain);
User user = context.UserManager.GetUser(new Jid(userName, stream.Domain, null));
if (user != null)
{
if (user.Sid != null)
{
var accountName = storage.getAccountNameBySid(user.Sid);
if (accountName != null && storage.CheckCredentials(accountName, password))
{
// ldap user
lock (authData)
{
authData[stream.Id] = new AuthData(true);
authData[stream.Id].UserName = userName;
authData[stream.Id].IsAuth = true;
}
}
}
else if (user.Password == password)
{
// usual user
lock (authData)
{
authData[stream.Id] = new AuthData(true);
authData[stream.Id].UserName = userName;
authData[stream.Id].IsAuth = true;
}
}
}
}
lock (authData)
{
if (!authData.ContainsKey(stream.Id))
{
authData[stream.Id] = new AuthData(true);
}
}
context.Sender.SendTo(stream, new Challenge());
}
}
else
{
context.Sender.SendToAndClose(stream, XmppFailureError.InvalidMechanism);
}
}
