/// <summary>
/// Asks the provisioning server if a JID is a friend or not.
/// </summary>
/// <param name="JID">JID</param>
/// <param name="Callback">Method to call when response is received.</param>
/// <param name="State">State object to pass to callback method.</param>
public void IsFriend(string JID, IsFriendCallback Callback, object State)
{
if ((!string.IsNullOrEmpty(this.ownerJid) && string.Compare(JID, this.ownerJid, true) == 0) ||
string.Compare(JID, this.provisioningServerAddress, true) == 0)
{
if (Callback != null)
{
try
{
IqResultEventArgs e0 = new IqResultEventArgs(null, string.Empty, this.client.FullJID, this.provisioningServerAddress, true, State);
IsFriendResponseEventArgs e = new IsFriendResponseEventArgs(e0, State, JID, true);
Callback(this.client, e);
}
catch (Exception ex)
{
Log.Critical(ex);
}
}
return;
}
this.CachedIqGet("<isFriend xmlns='" + NamespaceProvisioningDevice + "' jid='" +
XML.Encode(JID) + "'/>", this.IsFriendCallback, new object[] { Callback, State });
}
private void IsFriendCallback(object Sender, IqResultEventArgs e)
{
object[] P = (object[])e.State;
IsFriendCallback Callback = (IsFriendCallback)P[0];
object State = P[1];
string JID;
bool Result;
XmlElement E = e.FirstElement;
if (e.Ok && E != null && E.LocalName == "isFriendResponse" && E.NamespaceURI == NamespaceProvisioningDevice)
{
JID = XML.Attribute(E, "jid");
Result = XML.Attribute(E, "result", false);
}
else
{
Result = false;
JID = null;
}
IsFriendResponseEventArgs e2 = new IsFriendResponseEventArgs(e, State, JID, Result);
try
{
Callback(this, e2);
}
catch (Exception ex)
{
Log.Critical(ex);
}
}
private void CheckIfFriendCallback(object Sender, IsFriendResponseEventArgs e2)
{
PresenceEventArgs e = (PresenceEventArgs)e2.State;
if (e2.Ok && e2.Friend)
{
Log.Informational("Presence subscription accepted.", e.FromBareJID, this.provisioningServerAddress);
e.Accept();
RosterItem Item = this.client.GetRosterItem(e.FromBareJID);
if (Item == null || Item.State == SubscriptionState.None || Item.State == SubscriptionState.From)
{
this.client.RequestPresenceSubscription(e.FromBareJID);
}
}
else
{
Log.Notice("Presence subscription declined.", e.FromBareJID, this.provisioningServerAddress);
e.Decline();
}
}
