public async Task Processed(QuestionView QuestionView)
{
MainWindow.UpdateGui(() =>
{
int i = QuestionView.QuestionListView.SelectedIndex;
int c;
QuestionView.Details.Children.Clear();
QuestionView.QuestionListView.Items.Remove(this);
c = QuestionView.QuestionListView.Items.Count;
if (c == 0)
{
MainWindow.currentInstance.CloseTab_Executed(this, null);
}
else if (i < c)
{
QuestionView.QuestionListView.SelectedIndex = i;
}
});
await Database.Delete(this);
LinkedList <Question> ToRemove = null;
foreach (Question Question in QuestionView.QuestionListView.Items)
{
if (Question.IsResolvedBy(this))
{
if (ToRemove is null)
{
ToRemove = new LinkedList <Question>();
}
ToRemove.AddLast(Question);
}
}
if (ToRemove != null)
{
MainWindow.UpdateGui(() =>
{
foreach (Question Question in ToRemove)
{
QuestionView.QuestionListView.Items.Remove(Question);
}
if (QuestionView.QuestionListView.Items.Count == 0)
{
MainWindow.currentInstance.CloseTab_Executed(this, null);
}
});
foreach (Question Question in ToRemove)
{
await Database.Delete(Question);
}
}
}
private void UpdateTokenSource(string Token, string From)
{
LinkedList <KeyValuePair <DateTime, string> > ToRemove = null;
Triplet <string, DateTime, X509Certificate2> Rec;
DateTime TP = DateTime.Now;
DateTime Timeout = TP.AddMinutes(-1);
lock (this.synchObject)
{
if (this.sourceByToken.TryGetValue(Token, out Rec))
{
this.sourceByToken.Remove(Token);
this.tokenByLastAccess.Remove(Rec.Value2);
}
foreach (KeyValuePair <DateTime, string> P in tokenByLastAccess)
{
if (P.Key <= Timeout)
{
if (ToRemove == null)
{
ToRemove = new LinkedList <KeyValuePair <DateTime, string> > ();
}
ToRemove.AddLast(P);
}
else
{
break;
}
}
if (ToRemove != null)
{
foreach (KeyValuePair <DateTime, string> P in ToRemove)
{
this.tokenByLastAccess.Remove(P.Key);
this.sourceByToken.Remove(P.Value);
}
}
while (this.tokenByLastAccess.ContainsKey(TP))
{
TP = TP.AddTicks(gen.Next(1, 10));
}
this.sourceByToken [Token] = new Triplet <string, DateTime, X509Certificate2> (From, TP, null);
this.tokenByLastAccess [TP] = Token;
}
}
private void TimerCallback(object State)
{
LinkedList <SensorDataEventArgs> ToRemove = null;
DateTime Now = DateTime.Now;
lock (this.synchObj)
{
foreach (KeyValuePair <DateTime, SensorDataEventArgs> Pair in this.byTimeout)
{
if (Pair.Key > Now)
{
break;
}
if (ToRemove == null)
{
ToRemove = new LinkedList <SensorDataEventArgs> ();
}
ToRemove.AddLast(Pair.Value);
}
}
if (ToRemove != null)
{
foreach (SensorDataEventArgs e in ToRemove)
{
lock (this.synchObj)
{
this.byTimeout.Remove(e.Timeout);
this.receiving.Remove(e.SeqNr);
if (this.byTimeout.Count == 0 && this.timer != null)
{
this.timer.Dispose();
this.timer = null;
}
}
e.Receiving();
e.ReadoutState = ReadoutState.Timeout;
e.Done = true;
e.DoCallback(this);
}
}
}
internal bool UnregisterSubscription(IPEndPoint RemoteEndpoint, ulong Token)
{
string Prefix = RemoteEndpoint.ToString() + " ";
string Key = Prefix + Token.ToString();
lock (this.registrations)
{
this.registeredMessages = null;
if (this.registrations.Remove(Key))
{
return(true);
}
if (Token == 0)
{
LinkedList <string> ToRemove = null;
foreach (string Key2 in this.registrations.Keys)
{
if (Key2.StartsWith(Prefix))
{
if (ToRemove is null)
{
ToRemove = new LinkedList <string>();
}
ToRemove.AddLast(Key2);
}
}
if (ToRemove != null)
{
foreach (string Key2 in ToRemove)
{
this.registrations.Remove(Key2);
}
return(true);
}
}
}
return(false);
}
private void RecalcTimerLocked()
{
if (this.timer != null)
{
this.timer.Dispose();
this.timer = null;
}
LinkedList <DateTime> ToRemove = null;
DateTime Now = DateTime.Now;
TimeSpan TimeLeft;
foreach (KeyValuePair <DateTime, ScheduledEvent> Event in this.events)
{
TimeLeft = Event.Key - Now;
if (TimeLeft <= TimeSpan.Zero)
{
if (ToRemove == null)
{
ToRemove = new LinkedList <DateTime>();
}
ToRemove.AddLast(Event.Key);
Task.Run((Action)Event.Value.Execute);
}
else
{
this.timer = new Timer(this.TimerElapsed, null, TimeLeft, OnlyOnce);
break;
}
}
if (ToRemove != null)
{
foreach (DateTime TP in ToRemove)
{
this.events.Remove(TP);
}
}
}
/// <summary>
/// Reports a set of newly measured field values. Conditions in existing event subscriptions will be analyzed and any corresponding events sent.
/// </summary>
/// <param name="FieldValues">Field values.</param>
public void MomentaryValuesUpdated(params KeyValuePair <string, double>[] FieldValues)
{
Dictionary <Subscription, bool> ToUpdate = null;
LinkedList <Subscription> ToRemove = null;
List <Subscription> Subscriptions;
DateTime Now = DateTime.Now;
TimeSpan SinceLast;
XmppContact Contact;
bool MaxIntervalReached;
bool Update;
lock (this.synchObj)
{
foreach (KeyValuePair <string, double> Pair in FieldValues)
{
this.currentValues [Pair.Key] = Pair.Value;
if (this.subscriptionsByField.TryGetValue(Pair.Key, out Subscriptions))
{
foreach (Subscription Subscription in Subscriptions)
{
Contact = this.client.GetLocalContact(Subscription.From);
if (Contact == null || (Contact.Subscription != RosterItemSubscription.Both && Contact.Subscription != RosterItemSubscription.To))
{
if (ToRemove == null)
{
ToRemove = new LinkedList <Subscription> ();
}
ToRemove.AddLast(Subscription);
continue;
}
if (Contact.LastPresence == null || Contact.LastPresence.Status == PresenceStatus.Offline)
{
continue;
}
SinceLast = Now - Subscription.LastUpdate;
if (SinceLast < Subscription.MinInterval)
{
continue;
}
Update = MaxIntervalReached = SinceLast >= Subscription.MaxInterval;
foreach (Condition Condition in Subscription.Conditions)
{
if (Condition.Trigger(Pair.Key, Pair.Value, MaxIntervalReached))
{
Update = true;
break;
}
}
if (Update)
{
if (ToUpdate == null)
{
ToUpdate = new Dictionary <Subscription, bool> ();
}
ToUpdate [Subscription] = true;
Subscription.LastUpdate = Now;
}
}
}
}
}
if (ToUpdate != null)
{
foreach (Subscription Subscription in ToUpdate.Keys)
{
this.SendFields(Subscription.SeqNr, Subscription.From, Subscription.Request);
}
}
if (ToRemove != null)
{
foreach (Subscription Subscription in ToRemove)
{
this.RemoveSubscription(Subscription.Key, Subscription.SeqNr);
}
}
}
private void OnMessage(XmppClient Client, XmppMessage Message)
{
if (Message.MessageType != MessageType.Chat)
{
return;
}
string s = Message.Body.Trim();
if (string.IsNullOrEmpty(s))
{
return;
}
DateTime Now = DateTime.Now;
DateTime Timeout = Now.AddMinutes(-15);
LinkedList <Session> ToRemove = null;
Session Session;
string s2;
int i;
lock (this.sessionByJid)
{
foreach (KeyValuePair <DateTime, Session> P in this.sessionByLastAccess)
{
if (P.Key <= Timeout)
{
if (ToRemove == null)
{
ToRemove = new LinkedList <Session> ();
}
ToRemove.AddLast(P.Value);
}
else
{
break;
}
}
if (ToRemove != null)
{
foreach (Session S in ToRemove)
{
this.sessionByJid.Remove(S.From);
this.sessionByLastAccess.Remove(S.LastAccess);
}
}
if (this.sessionByJid.TryGetValue(Message.From, out Session))
{
this.sessionByLastAccess.Remove(Session.LastAccess);
}
else
{
Session = new Session();
Session.From = Message.From;
this.sessionByJid [Session.From] = Session;
}
while (this.sessionByLastAccess.ContainsKey(Now))
{
Now = Now.AddTicks(gen.Next(1, 10));
}
Session.LastAccess = Now;
this.sessionByLastAccess [Now] = Session;
}
switch (s)
{
case "#":
this.SendMenu(Client, Message.From, true, string.Empty, Session);
break;
case "##":
this.SendMenu(Client, Message.From, false, string.Empty, Session);
break;
case "?":
if (this.provisioning == null)
{
this.SendErrorMessage(Message.From, "No provisioning server has been found, so readout through the chat interface is not allowed.", Session);
}
else if (this.sensor == null)
{
this.SendErrorMessage(Message.From, "No sensor interface provided.", Session);
}
else
{
ReadoutRequest Request = new ReadoutRequest(ReadoutType.MomentaryValues, DateTime.MinValue, DateTime.MaxValue);
this.provisioning.CanRead(Request, Message.From, this.CanReadResponse, new object[] { Message.From, Session });
}
break;
case "??":
if (this.provisioning == null)
{
this.SendErrorMessage(Message.From, "No provisioning server has been found, so readout through the chat interface is not allowed.", Session);
}
else if (this.sensor == null)
{
this.SendErrorMessage(Message.From, "No sensor interface provided.", Session);
}
else
{
ReadoutRequest Request = new ReadoutRequest(ReadoutType.All, DateTime.MinValue, DateTime.MaxValue);
this.provisioning.CanRead(Request, Message.From, this.CanReadResponse, new object[] { Message.From, Session });
}
break;
case "html+":
Session.Html = true;
Client.SendMessage(Message.From, "HTML mode turned on.", MessageType.Chat);
break;
case "html-":
Session.Html = false;
Client.SendMessage(Message.From, "HTML mode turned off.", MessageType.Chat);
break;
case "=?":
case "!?":
if (this.provisioning == null)
{
this.SendErrorMessage(Message.From, "No provisioning server has been found, so control through the chat interface is not allowed.", Session);
}
else if (this.control == null)
{
this.SendErrorMessage(Message.From, "No control interface provided.", Session);
}
else
{
this.provisioning.CanControl(Message.From, this.CanControlListParametersResponse, new object[] {
Message.From,
Session
}, null, null, null, this.control.Parameters, null);
}
break;
default:
if (s.EndsWith("??"))
{
if (this.provisioning == null)
{
this.SendErrorMessage(Message.From, "No provisioning server has been found, so readout through the chat interface is not allowed.", Session);
}
else if (this.sensor == null)
{
this.SendErrorMessage(Message.From, "No sensor interface provided.", Session);
}
else
{
ReadoutRequest Request = new ReadoutRequest(ReadoutType.All, DateTime.MinValue, DateTime.MaxValue, null, new string[] { s.Substring(0, s.Length - 2) });
this.provisioning.CanRead(Request, Message.From, this.CanReadResponse, new object[] { Message.From, Session });
}
}
else if (s.EndsWith("?"))
{
if (this.provisioning == null)
{
this.SendErrorMessage(Message.From, "No provisioning server has been found, so readout through the chat interface is not allowed.", Session);
}
else if (this.sensor == null)
{
this.SendErrorMessage(Message.From, "No sensor interface provided.", Session);
}
else
{
ReadoutRequest Request = new ReadoutRequest(ReadoutType.MomentaryValues, DateTime.MinValue, DateTime.MaxValue, null, new string[] { s.Substring(0, s.Length - 1) });
this.provisioning.CanRead(Request, Message.From, this.CanReadResponse, new object[] { Message.From, Session });
}
}
else if ((i = s.IndexOfAny(controlDelimiters)) > 0)
{
IControlParameter Parameter;
if (this.provisioning == null)
{
this.SendErrorMessage(Message.From, "No provisioning server has been found, so control operations through the chat interface is not allowed.", Session);
}
else if (this.control == null)
{
this.SendErrorMessage(Message.From, "No control interface provided.", Session);
}
else if ((Parameter = this.control [s2 = s.Substring(0, i).Trim()]) == null)
{
this.SendErrorMessage(Message.From, "No control parameter named '" + s2 + "' found.", Session);
}
else
{
this.provisioning.CanControl(Message.From, this.CanControlParameterResponse, new object[] {
Message.From,
Session,
Parameter,
s2,
s.Substring(i + 1).Trim()
}, null, null, null, new string[] { s2 }, null);
}
}
else
{
this.SendMenu(Client, Message.From, true, "Hello. Following is a list of commands you can use when chatting with me.\r\n\r\n", Session);
}
break;
}
}
private async void GetFormHandler(object Sender, IqEventArgs e)
{
try
{
LinkedList <IThingReference> Nodes = null;
XmlElement E;
string ServiceToken = XML.Attribute(e.Query, "st");
string DeviceToken = XML.Attribute(e.Query, "dt");
string UserToken = XML.Attribute(e.Query, "ut");
foreach (XmlNode N in e.Query.ChildNodes)
{
E = N as XmlElement;
if (E is null)
{
continue;
}
if (E.LocalName == "nd")
{
if (Nodes is null)
{
Nodes = new LinkedList <IThingReference>();
}
string NodeId = XML.Attribute(E, "id");
string SourceId = XML.Attribute(E, "src");
string Partition = XML.Attribute(E, "pt");
if (this.OnGetNode is null)
{
Nodes.AddLast(new ThingReference(NodeId, SourceId, Partition));
}
else
{
IThingReference Ref = await this.OnGetNode(NodeId, SourceId, Partition);
if (Ref is null)
{
throw new ItemNotFoundException("Node not found.", e.IQ);
}
Nodes.AddLast(Ref);
}
}
}
ControlParameter[] Parameters;
if (Nodes is null)
{
Parameters = await this.GetControlParameters(null);
if (Parameters is null)
{
NotFound(e);
return;
}
}
else
{
Dictionary <string, ControlParameter> Parameters1;
Dictionary <string, ControlParameter> Parameters2;
LinkedList <string> ToRemove = null;
Parameters = null;
Parameters1 = null;
foreach (IThingReference Node in Nodes)
{
if (Parameters1 is null)
{
Parameters = await this.GetControlParameters(Node);
if (Parameters is null)
{
NotFound(e);
return;
}
Parameters1 = new Dictionary <string, ControlParameter>();
foreach (ControlParameter P in Parameters)
{
Parameters1[P.Name] = P;
}
}
else
{
Parameters2 = await this.GetControlParametersByName(Node);
if (Parameters2 is null)
{
NotFound(e);
return;
}
foreach (KeyValuePair <string, ControlParameter> P in Parameters1)
{
if (!Parameters2.TryGetValue(P.Key, out ControlParameter P2) || !P.Value.Equals(P2))
{
if (ToRemove is null)
{
ToRemove = new LinkedList <string>();
}
ToRemove.AddLast(P.Key);
}
}
if (ToRemove != null)
{
foreach (string Key in ToRemove)
{
Parameters1.Remove(Key);
}
ToRemove = null;
}
}
}
List <ControlParameter> Left = new List <ControlParameter>();
foreach (ControlParameter P in Parameters)
{
if (Parameters1.ContainsKey(P.Name))
{
Left.Add(P);
}
}
Parameters = Left.ToArray();
}
if (this.provisioningClient != null)
{
int i, c = Parameters.Length;
string[] ParameterNames = new string[c];
for (i = 0; i < c; i++)
{
ParameterNames[i] = Parameters[i].Name;
}
this.provisioningClient.CanControl(e.FromBareJid, Nodes, ParameterNames,
ServiceToken.Split(space, StringSplitOptions.RemoveEmptyEntries),
DeviceToken.Split(space, StringSplitOptions.RemoveEmptyEntries),
UserToken.Split(space, StringSplitOptions.RemoveEmptyEntries),
(sender2, e2) =>
{
if (e2.Ok && e2.CanControl)
{
if (e2.ParameterNames != null)
{
List <ControlParameter> Parameters2 = new List <ControlParameter>();
foreach (ControlParameter P in Parameters)
{
if (Array.IndexOf <string>(e2.ParameterNames, P.Name) >= 0)
{
Parameters2.Add(P);
}
}
Parameters = Parameters2.ToArray();
if (Parameters.Length == 0)
{
e.IqError("<error type='cancel'><forbidden xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>" +
"<text xmlns='urn:ietf:params:xml:ns:xmpp-stanzas' xml:lang='en'>Access denied.</text></error>");
return;
}
}
this.ReturnForm(e, Parameters, Nodes);
}
else
{
e.IqError("<error type='cancel'><forbidden xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>" +
"<text xmlns='urn:ietf:params:xml:ns:xmpp-stanzas' xml:lang='en'>Access denied.</text></error>");
}
}, null);
}
else
{
this.ReturnForm(e, Parameters, Nodes);
}
}
catch (Exception ex)
{
e.IqError(ex);
}
}
private async void GetFormHandler(object Sender, IqEventArgs e)
{
try
{
LinkedList <ThingReference> Nodes = null;
XmlElement E;
foreach (XmlNode N in e.Query.ChildNodes)
{
E = N as XmlElement;
if (E == null)
{
continue;
}
if (E.LocalName == "nd")
{
if (Nodes == null)
{
Nodes = new LinkedList <ThingReference>();
}
Nodes.AddLast(new ThingReference(
XML.Attribute(E, "id"),
XML.Attribute(E, "src"),
XML.Attribute(E, "pt")));
}
}
ControlParameter[] Parameters;
if (Nodes == null)
{
Parameters = await this.GetControlParameters(null);
if (Parameters == null)
{
NotFound(e);
return;
}
}
else
{
Dictionary <string, ControlParameter> Parameters1;
Dictionary <string, ControlParameter> Parameters2;
LinkedList <string> ToRemove = null;
Parameters = null;
Parameters1 = null;
foreach (ThingReference Node in Nodes)
{
if (Parameters1 == null)
{
Parameters = await this.GetControlParameters(Node);
if (Parameters == null)
{
NotFound(e);
return;
}
Parameters1 = new Dictionary <string, ControlParameter>();
foreach (ControlParameter P in Parameters)
{
Parameters1[P.Name] = P;
}
}
else
{
Parameters2 = await this.GetControlParametersByName(Node);
if (Parameters2 == null)
{
NotFound(e);
return;
}
foreach (KeyValuePair <string, ControlParameter> P in Parameters1)
{
if (!Parameters2.TryGetValue(P.Key, out ControlParameter P2) || !P.Value.Equals(P2))
{
if (ToRemove == null)
{
ToRemove = new LinkedList <string>();
}
ToRemove.AddLast(P.Key);
}
}
if (ToRemove != null)
{
foreach (string Key in ToRemove)
{
Parameters1.Remove(Key);
}
ToRemove = null;
}
}
}
List <ControlParameter> Left = new List <ControlParameter>();
foreach (ControlParameter P in Parameters)
{
if (Parameters1.ContainsKey(P.Name))
{
Left.Add(P);
}
}
Parameters = Left.ToArray();
}
StringBuilder Xml = new StringBuilder();
XmlWriter Output = XmlWriter.Create(Xml, XML.WriterSettings(false, true));
ThingReference FirstNode;
Output.WriteStartElement("x", XmppClient.NamespaceData);
Output.WriteAttributeString("xmlns", "xdv", null, XmppClient.NamespaceDataValidate);
Output.WriteAttributeString("xmlns", "xdl", null, XmppClient.NamespaceDataLayout);
Output.WriteAttributeString("xmlns", "xdd", null, XmppClient.NamespaceDynamicForms);
if (Nodes == null)
{
FirstNode = null;
Output.WriteElementString("title", this.client.BareJID);
}
else
{
FirstNode = Nodes.First.Value;
if (Nodes.First.Next == null)
{
Output.WriteElementString("title", Nodes.First.Value.NodeId);
}
else
{
Output.WriteElementString("title", Nodes.Count.ToString() + " nodes");
}
}
LinkedList <string> PagesInOrder = new LinkedList <string>();
Dictionary <string, LinkedList <ControlParameter> > ParametersPerPage = new Dictionary <string, LinkedList <ControlParameter> >();
foreach (ControlParameter P in Parameters)
{
if (!ParametersPerPage.TryGetValue(P.Page, out LinkedList <ControlParameter> List))
{
PagesInOrder.AddLast(P.Page);
List = new LinkedList <ControlParameter>();
ParametersPerPage[P.Page] = List;
}
List.AddLast(P);
}
foreach (string Page in PagesInOrder)
{
Output.WriteStartElement("xdl", "page", null);
Output.WriteAttributeString("label", Page);
foreach (ControlParameter P in ParametersPerPage[Page])
{
Output.WriteStartElement("xdl", "fieldref", null);
Output.WriteAttributeString("var", P.Name);
Output.WriteEndElement();
}
Output.WriteEndElement();
}
foreach (ControlParameter P in Parameters)
{
P.ExportToForm(Output, FirstNode);
}
Output.WriteEndElement();
Output.Flush();
e.IqResult(Xml.ToString());
}
catch (Exception ex)
{
e.IqError(ex);
}
}
private void SubscribeHandler(object Sender, IqEventArgs e)
{
List <ThingReference> Nodes = null;
Dictionary <string, FieldSubscriptionRule> Fields = null;
XmlElement E = e.Query;
FieldType FieldTypes = (FieldType)0;
Duration MaxAge = null;
Duration MinInterval = null;
Duration MaxInterval = null;
string ServiceToken = string.Empty;
string DeviceToken = string.Empty;
string UserToken = string.Empty;
string NodeId;
string SourceId;
string Partition;
string Id = string.Empty;
bool Req = false;
bool b;
foreach (XmlAttribute Attr in E.Attributes)
{
switch (Attr.Name)
{
case "id":
Id = Attr.Value;
break;
case "maxAge":
if (!Duration.TryParse(Attr.Value, out MaxAge))
{
MaxAge = null;
}
break;
case "minInt":
if (!Duration.TryParse(Attr.Value, out MinInterval))
{
MinInterval = null;
}
break;
case "maxInt":
if (!Duration.TryParse(Attr.Value, out MaxInterval))
{
MaxInterval = null;
}
break;
case "st":
ServiceToken = Attr.Value;
break;
case "dt":
DeviceToken = Attr.Value;
break;
case "ut":
UserToken = Attr.Value;
break;
case "all":
if (CommonTypes.TryParse(Attr.Value, out b) && b)
{
FieldTypes |= FieldType.All;
}
break;
case "h":
if (CommonTypes.TryParse(Attr.Value, out b) && b)
{
FieldTypes |= FieldType.Historical;
}
break;
case "m":
if (CommonTypes.TryParse(Attr.Value, out b) && b)
{
FieldTypes |= FieldType.Momentary;
}
break;
case "p":
if (CommonTypes.TryParse(Attr.Value, out b) && b)
{
FieldTypes |= FieldType.Peak;
}
break;
case "s":
if (CommonTypes.TryParse(Attr.Value, out b) && b)
{
FieldTypes |= FieldType.Status;
}
break;
case "c":
if (CommonTypes.TryParse(Attr.Value, out b) && b)
{
FieldTypes |= FieldType.Computed;
}
break;
case "i":
if (CommonTypes.TryParse(Attr.Value, out b) && b)
{
FieldTypes |= FieldType.Identity;
}
break;
case "req":
if (!CommonTypes.TryParse(Attr.Value, out Req))
{
Req = false;
}
break;
}
}
foreach (XmlNode N in E.ChildNodes)
{
switch (N.LocalName)
{
case "nd":
if (Nodes == null)
{
Nodes = new List <ThingReference>();
}
E = (XmlElement)N;
NodeId = XML.Attribute(E, "id");
SourceId = XML.Attribute(E, "src");
Partition = XML.Attribute(E, "pt");
ThingReference Ref = new ThingReference(NodeId, SourceId, Partition);
Nodes.Add(Ref);
break;
case "f":
if (Fields == null)
{
Fields = new Dictionary <string, FieldSubscriptionRule>();
}
string FieldName = null;
double?CurrentValue = null;
double?ChangedBy = null;
double?ChangedUp = null;
double?ChangedDown = null;
double d;
foreach (XmlAttribute Attr in N.Attributes)
{
switch (Attr.Name)
{
case "n":
FieldName = Attr.Value;
break;
case "v":
if (CommonTypes.TryParse(Attr.Value, out d))
{
CurrentValue = d;
}
break;
case "by":
if (CommonTypes.TryParse(Attr.Value, out d))
{
ChangedBy = d;
}
break;
case "up":
if (CommonTypes.TryParse(Attr.Value, out d))
{
ChangedUp = d;
}
break;
case "dn":
if (CommonTypes.TryParse(Attr.Value, out d))
{
ChangedDown = d;
}
break;
}
}
if (!string.IsNullOrEmpty(FieldName))
{
Fields[FieldName] = new FieldSubscriptionRule(FieldName, CurrentValue, ChangedBy, ChangedUp, ChangedDown);
}
break;
}
}
if (this.provisioningClient != null)
{
this.provisioningClient.CanRead(e.FromBareJid, FieldTypes, Nodes, Fields.Keys,
ServiceToken.Split(space, StringSplitOptions.RemoveEmptyEntries),
DeviceToken.Split(space, StringSplitOptions.RemoveEmptyEntries),
UserToken.Split(space, StringSplitOptions.RemoveEmptyEntries),
(sender2, e2) =>
{
if (e2.Ok && e2.CanRead)
{
if (e2.FieldsNames != null)
{
Dictionary <string, bool> FieldNames = new Dictionary <string, bool>();
foreach (string FieldName in FieldNames.Keys)
{
FieldNames[FieldName] = true;
}
LinkedList <string> ToRemove = null;
foreach (string FieldName in Fields.Keys)
{
if (!FieldNames.ContainsKey(FieldName))
{
if (ToRemove == null)
{
ToRemove = new LinkedList <string>();
}
ToRemove.AddLast(FieldName);
}
}
if (ToRemove != null)
{
foreach (string FieldName in ToRemove)
{
Fields.Remove(FieldName);
}
}
}
this.PerformSubscription(Req, e, Id, Fields, e2.Nodes, e2.FieldTypes,
ServiceToken, DeviceToken, UserToken, MaxAge, MinInterval, MaxInterval);
}
else
{
e.IqError("<error type='cancel'><forbidden xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>" +
"<text xmlns='urn:ietf:params:xml:ns:xmpp-stanzas' xml:lang='en'>Access denied.</text></error>");
}
}, null);
}
else
{
this.PerformSubscription(Req, e, Id, Fields, Nodes?.ToArray(), FieldTypes,
ServiceToken, DeviceToken, UserToken, MaxAge, MinInterval, MaxInterval);
}
}
/// <summary>
/// Checks if the request is authorized.
/// </summary>
/// <param name="Request">Request object.</param>
/// <returns>User object, if authenticated, or null otherwise.</returns>
public override async Task <IUser> IsAuthenticated(HttpRequest Request)
{
HttpFieldAuthorization Authorization = Request.Header.Authorization;
if (Authorization != null && Authorization.Value.StartsWith("Digest ", StringComparison.CurrentCultureIgnoreCase))
{
string UserName = null;
string Opaque = null;
string Realm = null;
string Nonce = null;
string Cnonce = null;
string Nc = null;
string Uri = null;
string Qop = null;
string[] QopItems;
string Response = null;
bool Auth = false;
bool AuthInt = false;
foreach (KeyValuePair <string, string> P in CommonTypes.ParseFieldValues(Authorization.Value.Substring(7)))
{
switch (P.Key.ToLower())
{
case "username":
UserName = P.Value;
break;
case "opaque":
Opaque = P.Value;
break;
case "realm":
Realm = P.Value;
break;
case "nonce":
Nonce = P.Value;
break;
case "cnonce":
Cnonce = P.Value;
break;
case "nc":
Nc = P.Value;
break;
case "uri":
Uri = P.Value;
break;
case "qop":
Qop = P.Value;
QopItems = Qop.Split(',');
Auth = (Array.IndexOf(QopItems, "auth") >= 0);
AuthInt = (Array.IndexOf(QopItems, "auth-int") >= 0);
break;
case "response":
Response = P.Value;
break;
}
}
if (this.realm != Realm || Qop is null || Nonce is null || Cnonce is null || Nc is null ||
Uri is null || Response is null || UserName is null || (!Auth && !AuthInt))
{
return(null);
}
if (this.opaque != Opaque)
{
// We need to ignore the opaque value if it's a POST from a web form, since it can be used from the original GET
// (which might have ocurred when another instance of the application ran).
if (Request.Header.Method != "POST" || Request.Header.ContentType.Value != "application/x-www-form-urlencoded")
{
return(null);
}
}
DateTime TP = DateTime.Now;
lock (this)
{
LinkedList <DateTime> ToRemove = null;
foreach (KeyValuePair <DateTime, string> Pair in this.nonceByExpiration)
{
if (Pair.Key <= TP)
{
if (ToRemove is null)
{
ToRemove = new LinkedList <DateTime>();
}
ToRemove.AddLast(Pair.Key);
this.expirationByNonce.Remove(Pair.Value);
}
else
{
break;
}
}
if (ToRemove != null)
{
foreach (DateTime ExpiryDate in ToRemove)
{
this.nonceByExpiration.Remove(ExpiryDate);
}
}
if (!this.expirationByNonce.TryGetValue(Nonce, out TP))
{
// We need to ignore the nonce value if it's a POST from a web form, since it can be used from the original GET
// (which might have ocurred when another instance of the application ran).
if (Request.Header.Method != "POST" || Request.Header.ContentType.Value != "application/x-www-form-urlencoded")
{
return(null);
}
}
if (Request.Header.Method != "HEAD")
{
this.expirationByNonce.Remove(Nonce);
this.nonceByExpiration.Remove(TP);
}
}
string HA1;
string HA2;
string Digest;
IUser User = await this.users.TryGetUser(UserName);
if (User is null)
{
return(null);
}
switch (User.PasswordHashType)
{
case "":
HA1 = ToHex(H(UserName + ":" + this.realm + ":" + User.PasswordHash));
break;
case "DIGEST-MD5":
HA1 = User.PasswordHash;
break;
default:
return(null);
}
if (AuthInt)
{
HA2 = ToHex(H(Request.Header.Method + ":" + Uri + ":" + ToHex(H(string.Empty))));
}
else
{
HA2 = ToHex(H(Request.Header.Method + ":" + Uri));
}
Digest = HA1 + ":" + Nonce + ":" + Nc + ":" + Cnonce + ":" + Qop + ":" + HA2;
Digest = ToHex(H(Digest));
if (Digest == Response)
{
LoginAuditor.Success("Login successful.", UserName, Request.RemoteEndPoint, "HTTP");
return(User);
}
else
{
LoginAuditor.Fail("Login attempt failed.", UserName, Request.RemoteEndPoint, "HTTP");
return(null);
}
}
return(null);
}
