public OutgoingStatusMessage(Session session, ImState state, string contentType, int refresh)
: base(Message.IMCOMPOSE_TYPE, string.Format(ISCOMPOSING, state.ToString(), contentType, IncludeRefresh(refresh)).Encode(Encoding.UTF8))
{
_state = state;
_composeContentType = contentType;
_refresh = refresh;
}
public override Message Validate()
{
XmlDocument ComposingXml = null;
try
{
byte[] content;
if (IsWrapped)
{
content = WrappedMessage.MessageContent;
}
else
{
content = DataContainer.Get(0, Size);
}
ComposingXml = new XmlDocument();
ComposingXml.LoadXml(RawContent);
}
catch (Exception e)
{
throw new ParseException("Invalid isComposing document", e);
}
XmlNodeList list = ComposingXml.GetElementsByTagName("state");
if (list.Count == 0)
{
throw new Exception("Mandatory 'state' element missing in isComposing document");
}
_state = (ImState)Enum.Parse(typeof(ImState), list[0].InnerText);
list = ComposingXml.GetElementsByTagName("contenttype");
if (list.Count > 0)
{
_composeContentType = list[0].InnerText;
}
list = ComposingXml.GetElementsByTagName("lastactive");
if (list.Count > 0)
{
_lastActive = ParseDT(list[0].InnerText);
}
list = ComposingXml.GetElementsByTagName("refresh");
if (list.Count > 0)
{
_refresh = int.Parse(list[0].InnerText);
}
return(this);
}
/// <summary>
/// Sets active and determines if a new send must be performed
/// </summary>
/// <param name="refresh"></param>
/// <returns></returns>
private bool ShouldActiveTransitionBeSent(int refresh)
{
DateTime now = DateTime.Now;
_isComposing = ImState.active;
_lastActive = now;
if ((_activeEnd < now) || (_refresh != 0 && _activeEnd.AddSeconds((0 - _refresh / 2)) <= now))
{
if (refresh < 60)
{
refresh = 60;
} // SHOULD not be allowed
_refresh = refresh;
_activeEnd = _lastActive.AddSeconds(refresh);
return(true);
}
return(false);
}
/// <summary>
/// Sets composing to IDLE, this is needed so new ACTIVE messages can be send
/// </summary>
private void EndComposing()
{
_isComposing = MSRP.ImState.idle;
_activeEnd = DateTime.Now;
}
public OutgoingStatusMessage(Session session, ImState state, string contentType, int refresh, string from, string to)
: this(session, state, contentType, refresh)
{
_from = from;
_to = to;
}
