/// <summary>
/// Fetch message history from the server.
///
/// The 'start' and 'end' attributes MAY be specified to indicate a date range.
///
/// If the 'with' attribute is omitted then collections with any JID are returned.
///
/// If only 'start' is specified then all collections on or after that date should be returned.
///
/// If only 'end' is specified then all collections prior to that date should be returned.
/// </summary>
/// <param name="pageRequest">Paging options</param>
/// <param name="start">Optional start date range to query</param>
/// <param name="end">Optional enddate range to query</param>
/// <param name="with">Optional JID to filter archive results by</param>
public XmppPage <ArchivedChatId> GetArchivedChatIds(XmppPageRequest pageRequest, DateTimeOffset?start = null, DateTimeOffset?end = null, Jid with = null)
{
pageRequest.ThrowIfNull();
var request = Xml.Element("list", xmlns);
if (with != null)
{
request.Attr("with", with.ToString());
}
if (start != null)
{
request.Attr("start", start.Value.ToXmppDateTimeString());
}
if (end != null)
{
request.Attr("end", end.Value.ToXmppDateTimeString());
}
var setNode = pageRequest.ToXmlElement();
request.Child(setNode);
var response = im.IqRequest(IqType.Get, null, null, request);
if (response.Type == IqType.Error)
{
throw Util.ExceptionFromError(response, "Failed to get archived chat ids");
}
return(new XmppPage <ArchivedChatId>(response.Data["list"], GetChatIdsFromStanza));
}
/// <summary>
/// Fetch a page of archived messages from a chat
/// </summary>
/// <param name="pageRequest">Paging options</param>
/// <param name="with">The id of the entity that the chat was with</param>
/// <param name="start">The start time of the chat</param>
public ArchivedChatPage GetArchivedChat(XmppPageRequest pageRequest, Jid with, DateTimeOffset start)
{
pageRequest.ThrowIfNull();
with.ThrowIfNull();
var request = Xml.Element("retrieve", xmlns);
request.Attr("with", with.ToString());
request.Attr("start", start.ToXmppDateTimeString());
var setNode = pageRequest.ToXmlElement();
request.Child(setNode);
var response = im.IqRequest(IqType.Get, null, null, request);
if (response.Type == IqType.Error)
{
throw Util.ExceptionFromError(response, "Failed to get archived chat messages");
}
return(new ArchivedChatPage(response.Data["chat"]));
}
/// <summary>
/// Fetch a page of archived messages
/// </summary>
/// <param name="pageRequest">Paging options</param>
/// <param name="with">Optional filter to only return messages if they match the supplied JID</param>
/// <param name="roomId">Optional filter to only return messages if they match the supplied JID</param>
/// <param name="start">Optional filter to only return messages whose timestamp is equal to or later than the given timestamp.</param>
/// <param name="end">Optional filter to only return messages whose timestamp is equal to or earlier than the timestamp given in the 'end' field.</param>
internal Task <XmppPage <Im.Message> > GetArchivedMessages(XmppPageRequest pageRequest, Jid with = null, Jid roomId = null, DateTimeOffset?start = null, DateTimeOffset?end = null)
{
Core.Iq iq = im.IqRequest(Core.IqType.Get, null, im.Jid, Xml.Element("query", xmlns));
if (iq.Type == Core.IqType.Result)
{
var query = iq.Data["query"];
if (query == null || query.NamespaceURI != xmlns)
{
throw new XmppException("Erroneous server response.");
}
DataForm form = DataFormFactory.Create(query["x"]);
string queryId = Guid.NewGuid().ToString().Replace("-", "");
var request = Xml.Element("query", xmlns)
.Attr("queryid", queryId)
.Child(pageRequest.ToXmlElement());
var filterForm = new SubmitForm();
foreach (var campo in form.Fields)
{
if (campo.Type == DataFieldType.Hidden)
{
filterForm.Fields.Add(campo);
}
if (campo.Name == "with" && with != null)
{
filterForm.AddUntypedValue("with", with);
}
if (campo.Name == "start" && start.HasValue)
{
filterForm.AddUntypedValue("start", DateTimeProfiles.ToXmppDateTimeString(start.Value));
}
if (campo.Name == "end" && end.HasValue)
{
filterForm.AddUntypedValue("end", DateTimeProfiles.ToXmppDateTimeString(end.Value));
}
}
request.Child(filterForm.ToXmlElement());
var tcs = new TaskCompletionSource <XmppPage <Im.Message> >();
var queryTask = pendingQueries[queryId] = new ArchiveQueryTask(tcs);
im.IqRequestAsync(Net.Xmpp.Core.IqType.Set, roomId, null, request, null,
(string id, Core.Iq response) =>
{
if (response.Type == Core.IqType.Error)
{
queryTask.SetException(Util.ExceptionFromError(response, "Failed to get archived messages"));
}
else
{
TryFinaliseQuery(response.Data);
}
});
return(tcs.Task);
}
else
{
var error = iq.Data["error"];
throw new Exception(error["text"].InnerText);
}
}