view spec/scansion/blocking.scs @ 12115:94de6b7596cc

mod_tombstones: Remember deleted accounts #1307 Presence subscriptions are normally revoked on account deletion, which informs the contact. Sometimes this notification gets lost e.g. due to s2s problems. The accounts JID may also be present e.g. in MUC affiliations, chat group member lists, pubsub subscriptions or other systems. These may grant privileges which would fall to someone who creates the same account again, which this module is meant to prevent.
author Kim Alvefur <zash@zash.se>
date Thu, 23 Dec 2021 14:08:20 +0100
parents 3bd846c76701
children
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# XEP-0191: Blocking Command

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

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

-----

# The parties connect
Romeo connects

Romeo sends:
	<presence/>

Romeo receives:
	<presence from="${Romeo's full JID}"/>

Juliet connects

Juliet sends:
	<presence/>

Juliet receives:
	<presence from="${Juliet's full JID}"/>

# They add each other
Romeo sends:
	<presence type="subscribe" to="${Juliet's JID}"/>

Romeo receives:
	<presence from="${Juliet's JID}" to="${Romeo's JID}" type="unavailable"/>

Juliet receives:
	<presence type="subscribe" to="${Juliet's JID}" from="${Romeo's JID}"/>

Juliet sends:
	<presence type="subscribed" to="${Romeo's JID}"/>

Romeo receives:
	<presence from="${Juliet's full JID}" to="${Romeo's JID}">
	  <delay xmlns="urn:xmpp:delay" stamp="{scansion:any}" from="localhost"/>
	</presence>

Juliet sends:
	<presence type="subscribe" to="${Romeo's JID}"/>

Juliet receives:
	<presence from="${Romeo's JID}" to="${Juliet's JID}" type="unavailable"/>

Romeo receives:
	<presence type="subscribe" to="${Romeo's JID}" from="${Juliet's JID}"/>

Romeo sends:
	<presence type="subscribed" to="${Juliet's JID}"/>

Juliet receives:
	<presence from="${Romeo's full JID}" to="${Juliet's JID}">
	  <delay xmlns="urn:xmpp:delay" stamp="{scansion:any}" from="localhost"/>
	</presence>

Romeo receives:
	<presence from="${Juliet's full JID}" to="${Romeo's JID}">
	  <delay xmlns="urn:xmpp:delay" stamp="{scansion:any}" from="localhost"/>
	</presence>

# They can now talk
Juliet sends:
	<message type="chat" to="${Romeo's JID}">
	  <body>ohai</body>
	</message>

Romeo receives:
	<message type="chat" to="${Romeo's JID}" from="${Juliet's full JID}">
	  <body>ohai</body>
	</message>

# And now to the blockining

Romeo sends:
	<iq type="set" id="lx2">
	  <block xmlns="urn:xmpp:blocking">
	    <item jid="${Juliet's JID}"/>
	  </block>
	</iq>

Romeo receives:
	<iq type="result" id="lx2"/>

Juliet receives:
	<presence type="unavailable" to="${Juliet's JID}" from="${Romeo's full JID}"/>

# Can"t talk anymore
Romeo sends:
	<message type="chat" to="${Juliet's JID}">
	  <body>hello?</body>
	</message>

Romeo receives:
	<message type="error" from="${Juliet's JID}">
	  <error type="cancel">
	    <not-acceptable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
	    <text xmlns="urn:ietf:params:xml:ns:xmpp-stanzas">You have blocked this JID</text>
	    <blocked xmlns="urn:xmpp:blocking:errors"/>
	  </error>
	</message>

Juliet sends:
	<message type="chat" to="${Romeo's JID}"/>

Juliet receives:
	<message type="error" from="${Romeo's JID}">
	  <error type="cancel">
	    <service-unavailable xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
	  </error>
	</message>

Romeo sends:
	<iq type="set" id="lx3">
	  <unblock xmlns="urn:xmpp:blocking">
	    <item jid="${Juliet's JID}"/>
	  </unblock>
	</iq>

Juliet receives:
	<presence to="${Juliet's JID}" from="${Romeo's full JID}">
	  <delay xmlns="urn:xmpp:delay" stamp="{scansion:any}" from="localhost"/>
	</presence>

Romeo receives:
	<iq type="result" id="lx3"/>

# Can talk again
Romeo sends:
	<message type="chat" to="${Juliet's JID}">
	  <body>hello!</body>
	</message>

Juliet receives:
	<message type="chat" to="${Juliet's JID}" from="${Romeo's full JID}">
	  <body>hello!</body>
	</message>

# Bye
Juliet sends:
	<presence type="unavailable"/>

Juliet disconnects

Romeo receives:
	<presence from="${Juliet's full JID}" to="${Romeo's JID}" type="unavailable"/>

Romeo sends:
	<presence type="unavailable"/>

Romeo disconnects