I would like to get all of my contacts presence and status information which they supplied to server before going offline.
I found the below method to query one contact's presence information but what I want to do here is to query all of my contact's presence information at once. Because If I have 200 roster item, I dont want to make 200 requests.
Is there any way to do something like this
Or is there anyway to change this in the xmpp server(ejabberd) side
Thanks
tolga
Use Roster to get roster status & presence.
Here is an example,
Roster roster = Roster.getInstanceFor(this.connection);
roster.addRosterListener(new RosterListener() {
#Override
public void entriesAdded(Collection<String> addresses) {
// Notified on roster added
}
#Override
public void entriesUpdated(Collection<String> addresses) {
// Notified on roster updated
}
#Override
public void entriesDeleted(Collection<String> addresses) {
// Notified on roster deleted
}
#Override
public void presenceChanged(Presence presence) {
// Notified in roster status changed
// You will get presences here
}
});
Related
I want to keep some information in Keycloak as custom user attributes.
Some of them should be managed by the user itself. Other attributes should be managed only by a Keycloak administrator. Attributes managed by the administrator should be read-only visible in the "Edit account" web page for the user.
I went through the guide to add custom user attributes in this page and customized the "Edit account" web page.
My question is:
Is it ensured that the user cannot change the attribute that is meant as read-only for the user? E.g. by submitting a form where he/she sends correct data that will be automatically mapped on the server side to the user attribute.
For what you've said, it seems that you have three choices.
One would be to keep the keycloak "Edit Account" page and use an update profile listener to check what attributes are stored or which ones are updated by who, something like this:
public class UpdateProfile implements RequiredActionProvider, RequiredActionFactory, DisplayTypeRequiredActionFactory {
#Override
public InitiatedActionSupport initiatedActionSupport() {
return InitiatedActionSupport.SUPPORTED;
}
#Override
public void evaluateTriggers(RequiredActionContext context) {
}
#Override
public void requiredActionChallenge(RequiredActionContext context) {
Response challenge = context.form()
.createResponse(UserModel.RequiredAction.UPDATE_PROFILE);
context.challenge(challenge);
}
// Check the custom attribute 1 not being modified by the user
#Override
public void processAction(RequiredActionContext context) {
EventBuilder event = context.getEvent();
event.event(EventType.UPDATE_PROFILE);
MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
UserModel user = context.getUser();
KeycloakSession session = context.getSession();
RealmModel realm = context.getRealm();
String newYourCustomAttribute1 = formData.getFirst("yourCustomAttribute1");
String oldYourCustomAttribute1 = user.getFirstAttribute("yourCustomAttribute1")
if (!newYourCustomAttribute1.equals(oldYourCustomAttribute1)) {
Response challenge = context.form()
.setError("User cannot change the attribute")
.setFormData(formData)
.createResponse(UserModel.RequiredAction.UPDATE_PROFILE);
context.challenge(challenge);
return;
}
context.success();
}
#Override
public void close() {
}
#Override
public RequiredActionProvider create(KeycloakSession session) {
return this;
}
#Override
public RequiredActionProvider createDisplay(KeycloakSession session, String displayType) {
if (displayType == null) return this;
if (!OAuth2Constants.DISPLAY_CONSOLE.equalsIgnoreCase(displayType)) return null;
return ConsoleUpdateProfile.SINGLETON;
}
#Override
public void init(Config.Scope config) {
}
#Override
public void postInit(KeycloakSessionFactory factory) {
}
#Override
public String getDisplayText() {
return "Update Profile";
}
#Override
public String getId() {
return UserModel.RequiredAction.UPDATE_PROFILE.name();
}
}
What I don't know is if this listener will be called when you update the profile from your client application too. If it gets called, you'll need to check which is the logged in client, if it's the public client do not let update the attributes, if it's your service client, let it.
The second one would be to only let your service client update the user profiles and make a custom view in your application which sends a form POST to your client, instead of to keycloak directly. This way you can validate it in the service before sending it to keycloak.
The third one is to implement a FormAction interface, which would allow you to validate the incoming form at server side:
The core interface you have to implement is the FormAction interface. A FormAction is responsible for rendering and processing a portion of the page. Rendering is done in the buildPage() method, validation is done in the validate() method, post validation operations are done in success().
#Override
public void validate(ValidationContext context) {
MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
UserModel user = context.getUser();
KeycloakSession session = context.getSession();
RealmModel realm = context.getRealm();
String newYourCustomAttribute1 = formData.getFirst("yourCustomAttribute1");
String oldYourCustomAttribute1 = user.getFirstAttribute("yourCustomAttribute1")
if (!newYourCustomAttribute1.equals(oldYourCustomAttribute1)) {
Response challenge = context.form()
.setError("User cannot change the attribute")
.setFormData(formData)
.createResponse(UserModel.RequiredAction.UPDATE_PROFILE);
context.challenge(challenge);
return;
}
context.success();
}
perform an update to version 12.0.4.
There were some issues < 12.0.4 with dropping all attributes if user updates his profile.
Additionally with 12.0.4 you can create user- and admin-read only attributes.
Check documentation: https://www.keycloak.org/docs/latest/server_admin/#_read_only_user_attributes
Cheers
I started with dynatableref example of Request Factory. I read request factory document. but still I am unclear about life cycle or flow of client to server.
I want to make a call to server. Insert data and update grid also. It is easy with RPC call. But I don't understand how to do with Request Factory.
This is one method of request factory. It call persist method automatically of server. It refresh grid also automatically. can I anybody tell how is it working?
context.fire(new Receiver<Void>() {
#Override
public void onConstraintViolation(Set<ConstraintViolation<?>> errors) {
// Otherwise, show ConstraintViolations in the UI
dialog.setText("Errors detected on the server");
editorDriver.setConstraintViolations(errors);
}
#Override
public void onSuccess(Void response) {
// If everything went as planned, just dismiss the dialog box
dialog.hide();
}
});
I want to edit some data in to grid also. is this method help me? or I have to write other method.
I wrote other method like
requestFactory.schoolCalendarRequest().savePerson(personProxy).fire(new Receiver<PersonProxy>() {
#Override
public void onSuccess(PersonProxy person) {
// Re-check offset in case of changes while waiting for data
dialog.hide();
}
});
This is not refreshing grid. why?
The flow client-server of the RuequestFactory is similar to RPC or any XMLHTTP request
1) You invoke a remote method on the server.
2) You receive a response in the Receiver object (which is the Callback object). In onSeccess Method you get the returned object if everything went well. onFailure you get an error if something went wrong.
So to populate the Person table from data retrieved from the server the code should look something like this
requestFactory.schoolCalendarRequest().getPersonList(param1).fire(new Receiver<List<PersonProxy>>() {
#Override
public void onSuccess(List<PersonProxy> personList) {
personTable.getDataProvider().setList(personList);
}
});
Now when you edit a Person (e.g. name ) it's important to initialize and use the same RequestContext until you call fire on the request. So the part where you update the Person's name should look something like this
column.setFieldUpdater(new FieldUpdater<Person, String>() {
#Override
public void update(PersonProxy personProxy, String value) {
RequestContext requestContext = requestFactory.schoolCalendarRequest()
PersonProxy personProxy= requestContext.edit(personProxy);
personProxy.setName(value);
requestFactory.schoolCalendarRequest().savePerson(personProxy).fire(new Receiver<PersonProxy>() {
#Override
public void onSuccess(PersonProxy person) {
//Do something after the update
}
});
}
});
The interaction with the RequestFactory should be placed in a Presenter, so you should probably consider implementing a MVP pattern.
I'm maintaining software that contains a bunch of user groups. When an Admin clicks "Remove" on a user of a group, two things should happen:
delete the group member (involves updating cache, db, etc.)
reload a list of group members (the user sees this list when he/she deletes a user)
It turns out that #2 finishes before #1 - race condition. As a result, I want to add a callback so that #2 does not execute until #1 is successful.
Is this code acceptable for GWT to ensure #2 occurs before #1?
doTask1();
GWT.runAsync(new RunAsyncCallback()
{
public void onFailure(final Throwable reason)
{
}
public void onSuccess()
{
doTask2();
}
});
GWT#runAsync() is used for GWT's "code splitting" feature, which allows deferred loading of code (and other runtime resources) until they are needed. You need to use GWT's asynchronous operation patterns (i.e. AsyncCallback or Command) to pass a callback to doTask1() that is invoked once the asynchronous operations there complete. For example, if doTask1() executes a GWT RPC method:
public void doTask1(final Command onCompletion) {
myRpcService.doTask1(new AsyncCallback<Void>() {
#Override
public void onFailure(Throwable caught) {
// Error handling
}
#Override
public void onSuccess(Void ignored) {
onCompletion.execute();
}
});
}
public void doTask2() {
// Perform task 2
}
public void doTasks1And2() {
doTask1(new Command() {
#Override
public void execute() {
doTask2();
}
});
}
No, you can still have a race condition with that style of control flow. Instead, you want something like this:
doTask1(new MyCallback() {
public void onTask1Complete() {
doTask2();
}
}
doTask1() needs to accept a callback so that once it is complete, it will execute the next operation.
To see why, let's assume that both doTask1() and doTask2() are making HTTP calls. You have no guarantee what order the server might receive these two connections unless you wait until the doTask1()'s request has returned . In your example code, you make the request in doTask1() (which immediately returns while the request is asynchronously made), and then make the second call without waiting for the first.
I want to get a list of all (active) resources of a person in my roster.
So for example "user1#gmail.com" I'd like to get something like {'gmail', 'pidgin'} if that user was currently logged in via GMail ('user1#gmail.com/gmail') and Pidgin.
Is this possible with Smack? I know that some clients show this information and e.g. XMPPHP supports something like getResources(), but XMPPHP is for PHP and doesn't work for Google Talk so that doesn't help me much.
Best regards
With Smack you need to track Presence packets as they are received. The "from" of the received packets will contain the resources for the JIDs of users.
For example:
private XMPPConnection connection;
private PresenceListener listener = new PresenceListener();
public void setConnection(XMPPConnection connection) {
this.connection = connection;
}
public void createPresenceListener() {
connection.addPacketListener(listener, new PacketTypeFilter(Presence.class));
}
public static class PresenceListener implements PacketListener {
public void processPacket(Packet packet) {
Presence presence = (Presence) packet;
if (presence.getType() == null || presence.getType() == Presence.Type.available) {
String from = presence.getFrom();
if (from != null && from.lastIndexOf("/") > 0) {
String resource = from.substring(from.lastIndexOf("/") + 1);
// from here you can track all active resources
}
}
}
}
I'm new to WP7 and coming from iPhone development. On iPhone I'm used to use NSNotificationCenter to notify my program of something. NSNotificationCenter is build-in the framework out of the box. Is there something similar in WP7? I stumbled uppon MVVM-Light Toolkit but I'm not sure how to use it correctly.
What I want to do:
Register to an Notification-Id and do something when Notification-Id is received
Send Notification with Notification-Id and a context (object to pass to observers)
Everyone who registers to the same Notification-Id will be notified
So something like: Registering
NotificationCenter.Default.register(receiver, notification-id, delegate);
Sending:
NotificationCenter.Default.send(notification-id, context);
Example for Registering:
NotificationCenter.Default.register(this, NotifyEnum.SayHello, m => Console.WriteLine("hello world with context: " + m.Context));
Sending ...
NotificationCenter.Default.send(NotifyEnum.SayHello, "stackoverflow context");
Here is how to do with the MVVM Light Toolkit:
Registering:
Messenger.Default.Register<string>(this, NotificationId, m => Console.WriteLine("hello world with context: " + m.Context));
Sending:
Messenger.Default.Send<string>("My message", NotificationId);
Here http://www.silverlightshow.net/items/Implementing-Push-Notifications-in-Windows-Phone-7.aspx you will find a great example on how to use push notification on windows phone 7.
I'm pretty sure that you archive the same result as NSNotificationCenter by creating a singleton which holds a list of observables that implements a specific interface based on your bussiness requirements, or call a lamba, or trigger an event, for each message sent by this singleton you will interate the list of observables and checking the message id, once you find one or more, you can call the interface method, or execute the lambda expression or trigger the event defined to digest the message contents.
Something like below:
public class NotificationCenter {
public static NotificationCenter Default = new NotificationCenter();
private List<KeyValuePair<string, INotifiable>> consumers;
private NotificationCenter () {
consumers = new List<INotifiable>();
}
public void Register(string id, INotifiable consumer) {
consumers.Add(new KeyValuePair(id, consumer));
}
public void Send(String id, object data) {
foreach(KeyValuePair consumer : consumers) {
if(consumer.Key == id)
consumer.Value.Notify(data);
}
}
}
public interface INotifiable {
void Notify(object data);
}
public class ConsumerPage : PhoneApplicationPage, INotifiable {
public ConsumerPage() {
NotificationCenter.Default.Register("event", this);
}
private Notify(object data) {
//do what you want
}
}
public class OtherPage : PhoneApplicationPage {
public OtherPage() {
NotificationCenter.Default.Send("event", "Hello!");
}
}