Earlier I was using smack as the client side library and sending the message to the openfire and it was working properly.
Now I want to use netty along with smack to establish the connection. I am able to create the channel and openfire shows me the connection created but I am not able to send the Registration packet to the openfire. I am writing the packet on the channel but its not getting delivered at the openfire.
Can you please help.
Use wireshark to see if the XMPP packets are been delivered.
If not you need to check your code.
Related
I am developing a chat app using ejabberd server for both IOS and Android. I also wrote a module for ejabberd to get the offline messages sent to my own server api .
my own server api will send notifications to the IOS/Android platforms using FCM.
On the client side , if the application is in the foreground or the background , it will stay connected to ejabberd and if the client receives the message then ejabberd will send the message delivery status.
I am facing an issue while the app is terminated ( service is not running ) which means it is not connected to ejabberd (offline) . if i send a message to this app while it is not terminated , it will receive a notification but the message still undelivered . how can mark the messages as delivered when receiving the notification while the app is terminated.
to explain it more , the same functionality is working fine with whatsapp :
device A has whatsapp installed and whatsapp was turned off (terminated)
Device B has whatsapp running
Device B sends a message to device A
Device A receives a whatsapp notification
Without doing anything on Device A , the message status on Device B is marked as delivered .
How can I implement this scenario with ejabberd ?
In case someone went into this issue , here is the solution that I implemented with help of #Mickaël Rémond from his answer.
I configured ejabberd to send the offline messages to an http service ( your own server) please refer to this link for further on how to do it
your server should catch the above call and generate a notification message (FCM ) in my case and send it to recipient device
recipient device will catch the notification which includes the message
recipient device will call http service (your own server backend)that responsible for sending the deliver ack to the original sender . you need to pass from, to , stanzaId , vhost with this call
backend server will use ejabberd-api (set of exposed apis to manage ejabberd through rest apis calls) to send delivery message using this api
please note the following notes also :
sending the delivery message from your own server to ejabberd will not delete them from ejabberd database
if the user re-connected to the ejabberd server then the recipient will receive the message again from ejabberd .
It is probably too complex for a simple Stack Overflow question, as you need to integrate several moving part on client and server:
You need to execute code in background when receiving push notifications on iOS (you need that property set on your app in your app provisioning profile and have code to handle that). The client will initiate an HTTPS query to let the server know that the message was delivered.
You need to have an endpoint that will get the delivered HTTPS calls and generate either a message ack or a chat marker on behalf of the user and route it in ejabberd.
In real world, this is not enough if you want to take into account the fact that you can only have 1 push in the queue on APNS. If you have several messages sent while the device is not on the network, you will need to have the device check all received messages while offline on the server, otherwise you will lose messaging.
You need to rely on XMPP Message Archive Management (MAM) to handle that history.
As you see, this is not a simple few tens of line of codes but need real design and involved work.
I am using Openfire as an XMPP server for building a customer support Bot framework.
I am planning to make use of channels/groups for the same. I am keen to use channels as there might be multiple human agents and a bot listening to the same conversation. So I am likely to have a group/channel for each individual.
I want the messages to be read and processed by my custom server. How do I go about this ? I couldn't find any plugin that allows me to intercept the messages and return back processed response.
Any recommendations ?
You can also create your an own openfire bot plugin if you are familiar with Java (small example: https://rmsol.de/2018/03/06/Openfire_Bot/). Otherwise create bot as a client lilke dontknow suggested (The "bot/client" will join every channel you like and e.g. listen for specific keywords)
I figured out that since Openfire is an XMPP Communication software, its best to just use a custom XMPP client ( on your own server ) to listen to all the messages and process it from there and reply back from the XMPP Client as well.
So if I have a Nodejs server, I will create a Node XMPP Client and listen to XMPP messages coming via Openfire from other users, will process them and reply back with custom messages which Openfire will send back to the user.
At the server, CometD provides a MaxQueueListener hook to drop messages but if the Bayeux Client wants to stop receiving messages from a server without disconnecting , can it achieve that?
A BayeuxClient receives message from the server only for the channels it is subscribed to.
For a BayeuxClient to stop receiving messages from the server is enough to unsubscribe from all channels it subscribed to.
The BayeuxClient will still receive meta messages on meta channels that are part of the Bayeux protocol, but no application message will be delivered by the server.
I'm want to logout some clients from server, and I'm looking for a stanza or extension (if available) that will tell the client to logout.
I know I can kill the connection from the server side, but most clients have an auto-reconnect feature.
NOTE: I need to be able to use this with standard xmpp clients like pidgin, adium,etc..
Thanks
You can simply send a packet to close stream:
</stream:stream>
Reference: http://xmpp.org/rfcs/rfc6120.html#streams-close
I would like to initiate a Chat between two users A and B from my web application. So I create an XMPP Message using Smack Client API or directly from an OpenFire Plugin:
Send a Message by Smack from A to B
Send a Message by Smack from Server to B with replyTo A
XEP-0033 allow "replyTo address" supported by OpenFire but not suported by IM Clients.
It seems "from" can't be overrided by a client or an OpenFire plugin. I also think GTalk will not accept an xmpp message from userA#gmail.com to userB#gmail.com by ServerToServer protocol.
Is there an other way to do this ? I want my web application to forge a message from UserA to UserB. But this webapp is not A or B.
Best Regards,
Jp
Any XMPP server should ignore the from address in a stanza and stamp the one that it get's from the connection into the stanza it sends on. This is a specific feature of XMPP compliant servers and is used to stop address spoofing and spam etc. You'd probably have to edit the source of a server and change it's behaviour. This is dangerous though and I wouldn't reccomend it if you'll be federating with other servers.
J