/// <summary>
/// Determines whether a Jid is a friend of the current device.
/// </summary>
/// <param name="Jid">JID to check.</param>
/// <param name="Callback">Callback method to call, when the response is available.</param>
/// <param name="State">State object to pass on to the response callback.</param>
public void IsFriend(string Jid, IsFriendCallback Callback, object State)
{
Jid = XmppClient.StripResource(Jid);
if (Jid == this.address)
{
if (Callback != null)
{
IsFriendEventArgs e = new IsFriendEventArgs(Jid, true, false, State);
try
{
Callback(e);
} catch (Exception ex)
{
Log.Exception(ex);
}
}
}
else
{
string Xml = "<isFriend xmlns='urn:xmpp:iot:provisioning' jid='" + Jid + "'/>";
string Hash = this.CalcHash(Xml);
StanzaError Error = null;
XmlNodeList Response;
if ((Response = this.GetCachedResponse(Hash)) != null)
{
this.IsFriendResponse(this.client, string.Empty, Response, ref Error, new object[] { Callback, State, null });
}
else
{
this.client.IqGet(Xml, this.address, this.IsFriendResponse, new object[] { Callback, State, Hash }, "Is Friend?");
}
}
}
private void GetInterfacesResponse(XmppClient Client, string Type, XmlNodeList Response, ref StanzaError Error, object State)
{
object[] P = (object[])State;
InteroperabilityInterfacesCallback Callback = (InteroperabilityInterfacesCallback)P [0];
object State2 = (object)P [1];
List <string> Interfaces = new List <string> ();
XmlElement E;
if (Error != null)
{
Error = null; // XEP not supported. Just return an empty list of supported interfaces.
}
else
{
foreach (XmlNode N in Response)
{
if (N.LocalName == "getInterfacesResponse")
{
foreach (XmlNode N2 in N.ChildNodes)
{
if (N2.LocalName == "interface" && (E = N2 as XmlElement) != null)
{
Interfaces.Add(XmlUtilities.GetAttribute(E, "name", string.Empty));
}
}
}
}
}
if (Callback != null)
{
try
{
Callback(Interfaces.ToArray(), State2);
} catch (Exception ex)
{
Log.Exception(ex);
}
}
}
private void GetFormResponse(XmppClient Client, string Type, XmlNodeList Response, ref StanzaError Error, object State)
{
ControlFormEventArgs e = (ControlFormEventArgs)State;
XmlElement E;
if (Error != null)
{
if (!string.IsNullOrEmpty(Error.Text))
{
e.ErrorMessage = Error.Text;
}
else
{
e.ErrorMessage = "Readout rejected by remote device.";
}
Error = null;
}
else
{
foreach (XmlNode N in Response)
{
E = N as XmlElement;
if (E == null)
{
continue;
}
if (E.LocalName == "x")
{
e.Form = new XmppDataForm(E);
}
}
if (e.Form == null)
{
e.ErrorMessage = "Invalid response. No control form returned.";
}
}
e.DoCallback(this);
}
private void UnsubscribeResponse(XmppClient Client, string Type, XmlNodeList Response, ref StanzaError Error, object State)
{
if (Error != null)
{
Error = null;
}
}
private void ReqResponse(XmppClient Client, string Type, XmlNodeList Response, ref StanzaError Error, object State)
{
SensorDataEventArgs e = (SensorDataEventArgs)State;
XmlElement E;
if (Error != null)
{
if (!string.IsNullOrEmpty(Error.Text))
{
e.SetError(Error.Text);
}
else
{
e.SetError("Readout rejected by remote device.");
}
Error = null;
}
else
{
foreach (XmlNode N in Response)
{
E = N as XmlElement;
if (E == null)
{
continue;
}
if (E.LocalName == "accepted")
{
int SeqNr = XmlUtilities.GetAttribute(E, "seqnr", 0);
if (SeqNr == e.SeqNr)
{
e.ReadoutState = ReadoutState.Accepted;
lock (this.synchObj)
{
this.receiving [SeqNr] = e;
}
}
else
{
e.SetError("Invalid sequence number returned in response.");
}
}
else if (E.LocalName == "rejected")
{
e.ReadoutState = ReadoutState.Rejected;
e.Done = true;
foreach (XmlNode N2 in E.ChildNodes)
{
if (N2.LocalName == "error")
{
if (string.IsNullOrEmpty(e.ErrorMessage))
{
e.ErrorMessage = N2.InnerText;
}
else
{
e.ErrorMessage += "\r\n" + N2.InnerText;
}
}
}
if (string.IsNullOrEmpty(e.ErrorMessage))
{
e.ErrorMessage = "Readout rejected by remote device.";
}
}
}
}
e.DoCallback(this);
}
private void CanControlResponse(XmppClient Client, string Type, XmlNodeList Response, ref StanzaError Error, object State)
{
object[] P = (object[])State;
CanControlCallback Callback = (CanControlCallback)P [0];
object State2 = (object)P [1];
string Hash = (string)P [2];
string[] Parameters = (string[])P [3];
NodeReference[] NodeReferences = (NodeReference[])P [4];
bool CanControl = false;
string Jid = string.Empty;
XmlElement E;
if (Error != null)
{
Error = null;
}
else if (Response != null)
{
if (Hash != null)
{
this.AddToCache(Hash, Response);
}
foreach (XmlNode N in Response)
{
if (N.LocalName == "canControlResponse" && (E = N as XmlElement) != null)
{
CanControl = XmlUtilities.GetAttribute(E, "result", false);
List <NodeReference> Nodes;
List <string> ParameterNames;
ReadoutRequest.ParseNodesAndFieldNames(E, out Nodes, out ParameterNames);
if (Nodes == null)
{
NodeReferences = null;
}
else
{
NodeReferences = Nodes.ToArray();
}
if (ParameterNames == null)
{
Parameters = null;
}
else
{
Parameters = ParameterNames.ToArray();
}
break;
}
}
}
CanControlEventArgs e = new CanControlEventArgs(Jid, CanControl, Parameters, NodeReferences, State2);
if (Callback != null)
{
try
{
Callback(e);
} catch (Exception ex)
{
Log.Exception(ex);
}
}
}
/// <summary>
/// Determines whether a control operation can be performed, partially performed or be rejected.
/// </summary>
/// <param name="From">JID from which the request was made.</param>
/// <param name="Callback">Callback method to call, when the response is available.</param>
/// <param name="State">State object to pass on to the response callback.</param>
/// <param name="ServiceToken">Optional service token provided in the request.</param>
/// <param name="DeviceToken">Optional device token provided in the request.</param>
/// <param name="UserToken">Optional user token provided in the request.</param>
/// <param name="Parameters">Control parameters to control.</param>
/// <param name="NodeReferenes">Any node references in the request. Can be null, if none.</param>
public void CanControl(string From, CanControlCallback Callback, object State, string ServiceToken, string DeviceToken, string UserToken, string[] Parameters, NodeReference[] NodeReferences)
{
string BareJid = XmppClient.StripResource(From);
if (BareJid == this.address)
{
if (Callback != null)
{
CanControlEventArgs e = new CanControlEventArgs(BareJid, true, Parameters, NodeReferences, State);
try
{
Callback(e);
} catch (Exception ex)
{
Log.Exception(ex);
}
}
}
else
{
StringBuilder sb = new StringBuilder();
XmlWriter w = XmlWriter.Create(sb, XmlUtilities.GetXmlWriterSettings(false, true, true));
w.WriteStartElement("canControl", "urn:xmpp:iot:provisioning");
w.WriteAttributeString("jid", BareJid);
if (!string.IsNullOrEmpty(ServiceToken))
{
w.WriteAttributeString("serviceToken", ServiceToken);
this.UpdateTokenSource(ServiceToken, From);
}
if (!string.IsNullOrEmpty(DeviceToken))
{
w.WriteAttributeString("deviceToken", DeviceToken);
this.UpdateTokenSource(DeviceToken, From);
}
if (!string.IsNullOrEmpty(UserToken))
{
w.WriteAttributeString("userToken", UserToken);
this.UpdateTokenSource(UserToken, From);
}
if (NodeReferences != null && NodeReferences.Length > 0)
{
foreach (NodeReference Node in NodeReferences)
{
w.WriteStartElement("node");
w.WriteAttributeString("nodeId", Node.NodeId);
if (!string.IsNullOrEmpty(Node.SourceId))
{
w.WriteAttributeString("sourceId", Node.SourceId);
}
if (!string.IsNullOrEmpty(Node.CacheType))
{
w.WriteAttributeString("cacheType", Node.CacheType);
}
w.WriteEndElement();
}
}
if (Parameters != null && Parameters.Length > 0)
{
foreach (string Parameter in Parameters)
{
w.WriteStartElement("parameter");
w.WriteAttributeString("name", Parameter);
w.WriteEndElement();
}
}
w.WriteEndElement();
w.Flush();
string Xml = sb.ToString();
string Hash = this.CalcHash(Xml);
StanzaError Error = null;
XmlNodeList Response;
if ((Response = this.GetCachedResponse(Hash)) != null)
{
this.CanControlResponse(this.client, string.Empty, Response, ref Error, new object[] {
Callback,
State,
null,
Parameters,
NodeReferences
});
}
else
{
this.client.IqGet(Xml, this.address, this.CanControlResponse, new object[] {
Callback,
State,
Hash,
Parameters,
NodeReferences
}, "Can Control?");
}
}
}
private void PropagatedTokenChallengeResponse(XmppClient Client, string Type, XmlNodeList Response, ref StanzaError Error, object State)
{
object[] P = (object[])State;
XmppClient OrgClient = (XmppClient)P [0];
string OrgFrom = (string)P [1];
string OrgId = (string)P [2];
if (Error != null)
{
Error = null;
OrgClient.IqError("<error type='modify'><bad-request xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/></error>", OrgFrom, OrgId, "Propagated token challenge error");
}
else
{
StringBuilder sb = new StringBuilder();
foreach (XmlNode N in Response)
{
if (N is XmlElement)
{
sb.Append(N.OuterXml);
}
}
OrgClient.IqResult(sb.ToString(), OrgFrom, OrgId, "Propagated token challenge result");
}
}
/// <summary>
/// Determines whether a readout can be performed, partially performed or be rejected.
/// </summary>
/// <param name="Request">Readout request.</param>
/// <param name="From">JID from which the request was made.</param>
/// <param name="Callback">Callback method to call, when the response is available.</param>
/// <param name="State">State object to pass on to the response callback.</param>
public void CanRead(ReadoutRequest Request, string From, CanReadCallback Callback, object State)
{
string BareJid = XmppClient.StripResource(From);
if (BareJid == this.address)
{
if (Callback != null)
{
CanReadEventArgs e = new CanReadEventArgs(BareJid, true, Request, State);
try
{
Callback(e);
} catch (Exception ex)
{
Log.Exception(ex);
}
}
}
else
{
StringBuilder sb = new StringBuilder();
XmlWriter w = XmlWriter.Create(sb, XmlUtilities.GetXmlWriterSettings(false, true, true));
w.WriteStartElement("canRead", "urn:xmpp:iot:provisioning");
w.WriteAttributeString("jid", BareJid);
if (!string.IsNullOrEmpty(Request.ServiceToken))
{
w.WriteAttributeString("serviceToken", Request.ServiceToken);
this.UpdateTokenSource(Request.ServiceToken, From);
}
if (!string.IsNullOrEmpty(Request.DeviceToken))
{
w.WriteAttributeString("deviceToken", Request.DeviceToken);
this.UpdateTokenSource(Request.DeviceToken, From);
}
if (!string.IsNullOrEmpty(Request.UserToken))
{
w.WriteAttributeString("userToken", Request.UserToken);
this.UpdateTokenSource(Request.UserToken, From);
}
WriteReadoutTypes(w, Request.Types);
WriteNodes(w, Request.Nodes);
WriteFields(w, Request.GetFields());
w.WriteEndElement();
w.Flush();
string Xml = sb.ToString();
string Hash = this.CalcHash(Xml);
StanzaError Error = null;
XmlNodeList Response;
if ((Response = this.GetCachedResponse(Hash)) != null)
{
this.CanReadResponse(this.client, string.Empty, Response, ref Error, new object[] {
Callback,
State,
null,
Request
});
}
else
{
this.client.IqGet(Xml, this.address, this.CanReadResponse, new object[] { Callback, State, Hash, Request }, "Can Read?");
}
}
}
private void IsFriendResponse(XmppClient Client, string Type, XmlNodeList Response, ref StanzaError Error, object State)
{
object[] P = (object[])State;
IsFriendCallback Callback = (IsFriendCallback)P [0];
object State2 = (object)P [1];
string Hash = (string)P [2];
bool IsFriend = false;
bool SecondaryTrustAllowed = false;
string Jid = string.Empty;
XmlElement E;
if (Error != null)
{
Error = null;
}
else if (Response != null)
{
if (Hash != null)
{
this.AddToCache(Hash, Response);
}
foreach (XmlNode N in Response)
{
if (N.LocalName == "isFriendResponse" && (E = N as XmlElement) != null)
{
Jid = XmlUtilities.GetAttribute(E, "jid", string.Empty);
IsFriend = XmlUtilities.GetAttribute(E, "result", false);
SecondaryTrustAllowed = XmlUtilities.GetAttribute(E, "secondaryTrustAllowed", false);
break;
}
}
}
IsFriendEventArgs e = new IsFriendEventArgs(Jid, IsFriend, SecondaryTrustAllowed, State2);
if (Callback != null)
{
try
{
Callback(e);
} catch (Exception ex)
{
Log.Exception(ex);
}
}
}
private void RemoveResponse(XmppClient Client, string Type, XmlNodeList Response, ref StanzaError Error, object State)
{
// Do nothing.
}
private void RegisterResponse(XmppClient Client, string Type, XmlNodeList Response, ref StanzaError Error, object State)
{
// Empty response = OK
// Response containing claimed = OK, but already claimed. Update node state and send update command.
if (Response != null)
{
XmlElement E;
foreach (XmlNode N in Response)
{
if (N.LocalName == "claimed" && (E = N as XmlElement) != null)
{
ClaimedEventHandler h = this.OnClaimed;
if (h != null)
{
try
{
string Owner = XmlUtilities.GetAttribute(E, "jid", string.Empty);
bool Public = XmlUtilities.GetAttribute(E, "public", false);
object[] P = (object[])State;
string NodeId = (string)P [0];
string CacheType = (string)P [1];
string SourceId = (string)P [2];
ClaimedEventArgs e = new ClaimedEventArgs(NodeId, SourceId, CacheType, Owner, Public);
h(this, e);
} catch (Exception ex)
{
Log.Exception(ex);
}
}
}
}
}
}