prosody
affaf6d08d26
spec/scansion/pubsub_resend_on_sub.scs

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spec/scansion/pubsub_resend_on_sub.scs @ 13186:affaf6d08d26

util.datamanager: Pad list writes to avoid crossing block boundaries By padding items so that they do not cross block boundaries, it becomes eaiser to delete whole blocks with fallocate() without cutting items in half, improving efficiency of such operations. Since list stores are used for message archives, where the most common deletion operation would be of the oldest entires, at the top of the file. With this, all blocks that contain items to be removed could be deleted without needing to read, delete and write out the whole file.
author Kim Alvefur <zash@zash.se>
date Wed, 07 Jun 2023 00:39:30 +0200
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: