prosody
11765f0605ec
spec/scansion/pubsub_resend_on_sub.scs

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spec/scansion/pubsub_resend_on_sub.scs @ 12462:11765f0605ec

mod_s2s: Store real stanzas in session.sendq, rather than strings This is the "right" thing to do. Strings were more memory-efficient, but e.g. bypassed stanza filters at reconnection time. Also not being stanzas prevents us from potential future work, such as merging sendq with mod_smacks. Regarding performance: we should counter the probable negative effect of this change with other positive changes that are desired anyway - e.g. a limit on the size of the sendq, improved in-memory representation of stanzas, s2s backoff (e.g. if a remote server is persistently unreachable, cache this failure for a while and don't just keep forever queuing stanzas for it).
author Matthew Wild <mwild1@gmail.com>
date Wed, 23 Mar 2022 15:25:22 +0000
parent 11854:b605cbd5f13b
line wrap: on
line source

# Pubsub: Send last item on subscribe #1436

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

// admin@localhost is assumed to have node creation privileges

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

---------

Romeo connects

Romeo sends:
	<iq type="set" to="pubsub.localhost" id='create1'>
		<pubsub xmlns="http://jabber.org/protocol/pubsub">
			<create node="princely_musings"/>
		</pubsub>
	</iq>

Romeo receives:
	<iq type="result" id='create1'/>

Romeo sends:
	<iq to="pubsub.localhost" id="config-never" type="set">
		<pubsub xmlns="http://jabber.org/protocol/pubsub#owner">
			<configure node="princely_musings">
				<x xmlns="jabber:x:data" type="submit">
					<field var="FORM_TYPE" type="hidden">
						<value>http://jabber.org/protocol/pubsub#node_config</value>
					</field>
					<field type='list-single' var='pubsub#send_last_published_item'>
						<value>never</value>
					</field>
				</x>
			</configure>
		</pubsub>
	</iq>

Romeo receives:
	<iq from="pubsub.localhost" id="config-never" type="result"/>

Romeo sends:
	<iq type="set" to="pubsub.localhost" id='pub1'>
		<pubsub xmlns="http://jabber.org/protocol/pubsub">
			<publish node="princely_musings">
				<item id="current">
					<entry xmlns="http://www.w3.org/2005/Atom">
						<title>Soliloquy</title>
						<summary>Lorem ipsum dolor sit amet</summary>
					</entry>
				</item>
			</publish>
		</pubsub>
	</iq>

Romeo receives:
	<iq type="result" id='pub1'/>

Juliet connects

Juliet sends:
	<iq type="set" to="pubsub.localhost" id='sub1'>
		<pubsub xmlns="http://jabber.org/protocol/pubsub">
			<subscribe node="princely_musings" jid="${Juliet's full JID}"/>
		</pubsub>
	</iq>

Juliet receives:
	<iq type="result" id='sub1'/>

Juliet sends:
	<iq type="set" to="pubsub.localhost" id='unsub1'>
		<pubsub xmlns="http://jabber.org/protocol/pubsub">
			<unsubscribe node="princely_musings" jid="${Juliet's full JID}"/>
		</pubsub>
	</iq>

Juliet receives:
	<iq type="result" id='unsub1'/>

Romeo sends:
	<iq to="pubsub.localhost" id="config-on_sub" type="set">
		<pubsub xmlns="http://jabber.org/protocol/pubsub#owner">
			<configure node="princely_musings">
				<x xmlns="jabber:x:data" type="submit">
					<field var="FORM_TYPE" type="hidden">
						<value>http://jabber.org/protocol/pubsub#node_config</value>
					</field>
					<field type='list-single' var='pubsub#send_last_published_item'>
						<value>on_sub</value>
					</field>
				</x>
			</configure>
		</pubsub>
	</iq>

Romeo receives:
	<iq from="pubsub.localhost" id="config-on_sub" type="result"/>

Juliet sends:
	<iq type="set" to="pubsub.localhost" id='sub2'>
		<pubsub xmlns="http://jabber.org/protocol/pubsub">
			<subscribe node="princely_musings" jid="${Juliet's full JID}"/>
		</pubsub>
	</iq>

Juliet receives:
	<iq type="result" id='sub2'/>

Juliet receives:
	<message type="headline" from="pubsub.localhost">
		<event xmlns="http://jabber.org/protocol/pubsub#event">
			<items node="princely_musings">
				<item id="current" publisher="${Romeo's JID}">
					<entry xmlns="http://www.w3.org/2005/Atom">
						<title>Soliloquy</title>
						<summary>Lorem ipsum dolor sit amet</summary>
					</entry>
				</item>
			</items>
		</event>
	</message>

Juliet sends:
	<iq type="set" to="pubsub.localhost" id='unsub2'>
		<pubsub xmlns="http://jabber.org/protocol/pubsub">
			<unsubscribe node="princely_musings" jid="${Juliet's full JID}"/>
		</pubsub>
	</iq>

Juliet receives:
	<iq type="result" id='unsub2'/>

Juliet disconnects

Romeo sends:
	<iq type="set" to="pubsub.localhost" id='del1'>
		<pubsub xmlns="http://jabber.org/protocol/pubsub#owner">
			<delete node="princely_musings"/>
		</pubsub>
	</iq>

Romeo receives:
	<iq type="result" id='del1'/>

Romeo disconnects

// vim: syntax=xml: