prosody
cfeb0077c9e9
spec/scansion/muc_subject_issue_667.scs

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spec/scansion/muc_subject_issue_667.scs @ 10571:cfeb0077c9e9

net.server_epoll: Avoid concatenating buffer with single item Saves creating a string that'll be identical to buffer[1] anyways, as well as a C function call. Depending on Lua version and length of the string, this could be reusing an interned string, but a longer one would probably be duplicated for no reason. Having exactly one item in the buffer seems like it would be fairly common, but I have not done an extensive study. If opportunistic writes are enabled then it will be even more likely. This special case could be optimized like this in table.concat but it does not look like it is.
author Kim Alvefur <zash@zash.se>
date Sat, 28 Dec 2019 06:18:58 +0100
parent 9708:6507df6d2c55
line wrap: on
line source

# #667 MUC message with subject and body SHALL NOT be interpreted as a subject change

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

-----

Romeo connects

# and creates a room
Romeo sends:
	<presence to="issue667@conference.localhost/Romeo">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

Romeo receives:
	<presence from="issue667@conference.localhost/Romeo">
		<x xmlns="http://jabber.org/protocol/muc#user">
			<status code="201"/>
			<item affiliation="owner" role="moderator" jid="${Romeo's full JID}"/>
			<status code="110"/>
		</x>
	</presence>

# the default (empty) subject
Romeo receives:
	<message type="groupchat" from="issue667@conference.localhost">
		<subject/>
	</message>

# this should be treated as a normal message
Romeo sends:
	<message to="issue667@conference.localhost" type="groupchat">
		<subject>Greetings</subject>
		<body>Hello everyone</body>
	</message>

Romeo receives:
	<message type="groupchat" from="issue667@conference.localhost/Romeo">
		<subject>Greetings</subject>
		<body>Hello everyone</body>
	</message>

# Resync
Romeo sends:
	<presence to="issue667@conference.localhost/Romeo">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

# Presences
Romeo receives:
	<presence from="issue667@conference.localhost/Romeo">
		<x xmlns="http://jabber.org/protocol/muc#user">
			<item affiliation="owner" role="moderator" jid="${Romeo's full JID}"/>
			<status code="110"/>
		</x>
	</presence>

Romeo receives:
	<message type="groupchat" from="issue667@conference.localhost/Romeo">
		<subject>Greetings</subject>
		<body>Hello everyone</body>
	</message>

# the still empty subject
Romeo receives:
	<message type="groupchat" from="issue667@conference.localhost">
		<subject/>
	</message>

# this is a subject change
Romeo sends:
	<message to="issue667@conference.localhost" type="groupchat">
		<subject>Something to talk about</subject>
	</message>

Romeo receives:
	<message type="groupchat" from="issue667@conference.localhost/Romeo">
		<subject>Something to talk about</subject>
	</message>

# a message without <subject>
Romeo sends:
	<message to="issue667@conference.localhost" type="groupchat">
		<body>Lorem ipsum dolor sit amet</body>
	</message>

Romeo receives:
	<message type="groupchat" from="issue667@conference.localhost/Romeo">
		<body>Lorem ipsum dolor sit amet</body>
	</message>

# Resync
Romeo sends:
	<presence to="issue667@conference.localhost/Romeo">
		<x xmlns="http://jabber.org/protocol/muc"/>
	</presence>

# Presences
Romeo receives:
	<presence from="issue667@conference.localhost/Romeo">
		<x xmlns="http://jabber.org/protocol/muc#user">
			<item affiliation="owner" role="moderator" jid="${Romeo's full JID}"/>
			<status code="110"/>
		</x>
	</presence>

# History
# These have delay tags but we ignore those for now
Romeo receives:
	<message type="groupchat" from="issue667@conference.localhost/Romeo">
		<subject>Greetings</subject>
		<body>Hello everyone</body>
	</message>

Romeo receives:
	<message type="groupchat" from="issue667@conference.localhost/Romeo">
		<body>Lorem ipsum dolor sit amet</body>
	</message>

# Finally, the topic
Romeo receives:
	<message type="groupchat" from="issue667@conference.localhost/Romeo">
		<subject>Something to talk about</subject>
	</message>

Romeo disconnects