prosody
735b8f4a6d7e
spec/scansion/muc_presence_probe.scs

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spec/scansion/muc_presence_probe.scs @ 11661:735b8f4a6d7e

net.http: Send entire HTTP request header as one write When opportunistic writes are enabled this reduces the number of syscalls and TCP packets sent on the wire. Experiments with TCP Fast Open made this even more obvious. That table trick probably wasn't as efficient. Lua generates bytecode for a table with zero array slots and space for two entries in the hash part, plus code to set [2] and [4]. I didn't verify but I suspect it would have had to resize the table when setting [1] and [3], although probably only once. Concatenating the strings directly in Lua is easier to read and involves no extra table or function call.
author Kim Alvefur <zash@zash.se>
date Thu, 08 Jul 2021 18:21:59 +0200
parent 11246:ab189e707705
line wrap: on
line source

# #1535 Let MUCs respond to presence probes

[Client] Romeo
	jid: user@localhost
	password: password

[Client] Juliet
	jid: user2@localhost
	password: password

[Client] Mercutio
	jid: user3@localhost
	password: password

-----

Romeo connects

# Romeo joins the MUC

Romeo sends:
	<presence to="room@conference.localhost/Romeo">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

Romeo receives:
	<presence from='room@conference.localhost/Romeo'>
		<x xmlns='http://jabber.org/protocol/muc#user'>
			<status code='201'/>
			<item jid="${Romeo's full JID}" affiliation='owner' role='moderator'/>
			<status code='110'/>
		</x>
	</presence>

Romeo receives:
	<message type='groupchat' from='room@conference.localhost'><subject/></message>

# Disable presences for non-mods
Romeo sends:
	<iq id='config1' to='room@conference.localhost' type='set'>
		<query xmlns='http://jabber.org/protocol/muc#owner'>
			<x xmlns='jabber:x:data' type='submit'>
				<field var='FORM_TYPE'>
					<value>http://jabber.org/protocol/muc#roomconfig</value>
				</field>
				<field var='muc#roomconfig_presencebroadcast'>
					<value>moderator</value>
				</field>
			</x>
		</query>
	</iq>

Romeo receives:
	<iq id="config1" from="room@conference.localhost" type="result">
	</iq>

# Romeo probes himself

Romeo sends:
	<presence to="room@conference.localhost/Romeo" type="probe">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

Romeo receives:
	<presence from='room@conference.localhost/Romeo'>
		<x xmlns='http://jabber.org/protocol/muc#user'>
			<item jid="${Romeo's full JID}" affiliation='owner' role='moderator'/>
		</x>
	</presence>

# Juliet tries to probe Romeo before joining the room

Juliet connects

Juliet sends:
	<presence to="room@conference.localhost/Romeo" type="probe">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

Juliet receives:
	<presence from="room@conference.localhost/Romeo" type="error">
		<error type="cancel">
			<not-acceptable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
		</error>
	</presence>

# Juliet tries to probe Mercutio (who's not in the MUC) before joining the room

Juliet sends:
	<presence to="room@conference.localhost/Mercutio" type="probe">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

Juliet receives:
	<presence from="room@conference.localhost/Mercutio" type="error">
		<error type="cancel">
			<not-acceptable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
		</error>
	</presence>

# Juliet joins the room

Juliet sends:
	<presence to="room@conference.localhost/Juliet">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

Juliet receives:
	<presence from="room@conference.localhost/Romeo" />

Juliet receives:
	<presence from="room@conference.localhost/Juliet" />

# Romeo probes Juliet

Romeo sends:
	<presence to="room@conference.localhost/Juliet" type="probe">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

Romeo receives:
	<presence from='room@conference.localhost/Juliet'>
		<x xmlns='http://jabber.org/protocol/muc#user'>
			<item jid="${Juliet's full JID}" affiliation='none' role='participant'/>
		</x>
	</presence>


# Mercutio tries to probe himself in a MUC before joining

Mercutio connects

Mercutio sends:
	<presence to="room@conference.localhost/Mercutio" type="probe">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

Mercutio receives:
	<presence from="room@conference.localhost/Mercutio" type="error">
		<error type="cancel">
			<not-acceptable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
		</error>
	</presence>


# Romeo makes Mercutio a member and registers his nickname

Romeo sends:
	<iq id='member1' to='room@conference.localhost' type='set'>
		<query xmlns='http://jabber.org/protocol/muc#admin'>
			<item affiliation='member' jid="${Mercutio's JID}" nick="Mercutio"/>
		</query>
	</iq>

Romeo receives:
	<message from='room@conference.localhost'>
		<x xmlns='http://jabber.org/protocol/muc#user'>
			<item jid="${Mercutio's JID}" affiliation='member' />
		</x>
	</message>

Romeo receives:
	<iq from='room@conference.localhost' id='member1' type='result'/>


# Romeo probes Mercutio, even though he's unavailable

Romeo sends:
	<presence to="room@conference.localhost/Mercutio" type="probe">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

Romeo receives:
	<presence from='room@conference.localhost/Mercutio' type="unavailable">
		<x xmlns='http://jabber.org/protocol/muc#user'>
			<item nick="Mercutio" affiliation='member' role='none' jid="${Mercutio's JID}" />
		</x>
	</presence>