Cannot join an OPEN ROOM using recommendation from XEP-0045 specs

[bromoapp]

Environment

• ejabberd version: 22
• Erlang version: erl +V
• OS: Linux (Debian)
• Installed from: official binary installer

Errors from error.log/crash.log

No errors

Bug description

I am creating a Unity app to connect to ejabberd, and I am using this lib that already implements XEP-0045.

I try to connect to an open room with room specification as below

{
    "title": "Global Chat",
    "description": "This is Global Chat for all player in Persibverse",
    "allow_change_subj": "false",
    "allow_query_users": "true",
    "allow_private_messages": "true",
    "allow_private_messages_from_visitors": "moderators",
    "allow_visitor_status": "true",
    "allow_visitor_nickchange": "true",
    "public": "true",
    "public_list": "true",
    "persistent": "true",
    "moderated": "false",
    "captcha_protected": "false",
    "members_by_default": "true",
    "members_only": "false",
    "allow_user_invites": "true",
    "allow_subscription": "true",
    "password_protected": "false",
    "password": "",
    "anonymous": "false",
    "presence_broadcast": "[moderator,participant,visitor]",
    "allow_voice_requests": "true",
    "voice_request_min_interval": "1800",
    "max_users": "200",
    "logging": "true",
    "vcard": "",
    "vcard_xupdate": "undefined",
    "captcha_whitelist": "{0,nil}",
    "mam": "true",
    "pubsub": "",
    "enable_hats": "false",
    "lang": "en"
}

So I managed to send a presence request to join the above room like below:

<presence id="eb2604de-a98e-467c-a451-59e567b828f3" from="myusername@chatdomain.com" to="global@conference.chatdomain.com">
	<nick xmlns="http://jabber.org/protocol/nick">MyNickname</nick>
	<x xmlns='http://jabber.org/protocol/muc'/>
</presence>

But the response from the ejabberd is always like below:

<presence xml:lang='fr' to='myusername@chatdomain.com/desktop' from='global@conference.chatdomain.com' type='error' id='eb2604de-a98e-467c-a451-59e567b828f3'>
	<nick xmlns='http://jabber.org/protocol/nick'>Bromo</nick>
	<x xmlns='http://jabber.org/protocol/muc'/>
	<x xmlns='vcard-temp:x:update'>
		<photo/>
	</x>
	<error type='modify'>
		<jid-malformed xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>
		<text xml:lang='fr' xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'>Le pseudonyme ne peut être laissé vide</text>
		<text xml:lang='en' xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'>Nickname can&apos;t be empty</text>
	</error>
</presence>

So I checked the XEP-0045 spec from this site .. so I decided to request for reserved Nick first before I sending join request like below:

<iq id="c9e02534-c375-4c66-84f8-b819b1a4e61a" from="myusername@chatdomain.com" to="conference.chatdomain.com" type="get">
	<query xmlns='http://jabber.org/protocol/disco#info' node='x-roomuser-item'/>
</iq>

And another error message returned like below:

<iq xml:lang='fr' to='myusername@dev-chat.planetpersib.com/desktop' from='conference.chatdomain.com' type='error' id='c9e02534-c375-4c66-84f8-b819b1a4e61a'>
	<query node='x-roomuser-item' xmlns='http://jabber.org/protocol/disco#info'/>
	<error type='cancel'>
		<item-not-found xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>
		<text xml:lang='fr' xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'>Nœud non trouvé</text>
		<text xml:lang='en' xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'>Node not found</text>
	</error>
</iq>

I already googled this, and still couldn't find any answer. Does anybody understand this issue please help?

Thanks :)

[bromoapp]

From ChatGPT I found the answer.. so I will close this issue

[licaon-kter]

@bromoapp But what IS the answer?

[bromoapp]

set your nickname at TO attribute, like the above pic at your join request.

[licaon-kter]

https://xmpp.org/extensions/xep-0045.html#example-18 ;)