/// <summary>
/// Gets a message object from the broker.
/// </summary>
/// <param name="ObjectId">ID of the message object to get.</param>
/// <param name="ContentType">Content-Type of response, if only part of the mail object is desired.</param>
/// <param name="Callback">Method to call when response has been returned.</param>
/// <param name="State">State object to pass on to callback method.</param>
public void Get(string ObjectId, string ContentType, MessageObjectEventHandler Callback, object State)
{
StringBuilder Xml = new StringBuilder();
Xml.Append("<get xmlns='");
Xml.Append(NamespaceMail);
Xml.Append("' cid='");
Xml.Append(XML.Encode(ObjectId));
if (!string.IsNullOrEmpty(ContentType))
{
Xml.Append("' type='");
Xml.Append(XML.Encode(ContentType));
}
Xml.Append("'/>");
this.client.SendIqGet(this.client.Domain, Xml.ToString(), async(sender, e) =>
{
XmlElement E;
string ResponseContentType = null;
byte[] Data = null;
if (e.Ok && !((E = e.FirstElement) is null) && E.LocalName == "content" && E.NamespaceURI == NamespaceMail)
{
try
{
ResponseContentType = XML.Attribute(E, "type");
Data = Convert.FromBase64String(E.InnerText);
}
catch (Exception)
{
e.Ok = false;
}
}
else
{
e.Ok = false;
}
if (!(Callback is null))
{
try
{
await Callback(this, new MessageObjectEventArgs(e, ResponseContentType, Data));
}
catch (Exception ex)
{
Log.Critical(ex);
}
}
}, State);
}
/// <summary>
/// Gets a message object from the broker.
/// </summary>
/// <param name="ObjectId">ID of the message object to get.</param>
/// <param name="Callback">Method to call when response has been returned.</param>
/// <param name="State">State object to pass on to callback method.</param>
public void Get(string ObjectId, MessageObjectEventHandler Callback, object State)
{
this.Get(ObjectId, string.Empty, Callback, State);
}
