prosody
735b8f4a6d7e
spec/scansion/basic_message.scs

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spec/scansion/basic_message.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 10515:35bf3b80480f
line wrap: on
line source

# Basic message routing and delivery

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

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

[Client] Juliet's phone
	jid: juliet@localhost
	password: password
	resource: mobile

---------

# Act 1, scene 1
# The clients connect

Romeo connects

Juliet connects

Juliet's phone connects

# Romeo publishes his presence. Juliet has not, and so does not receive presence.

Romeo sends:
	<presence/>

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

# Romeo sends a message to Juliet's full JID

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

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

# Romeo sends a message to Juliet's phone

Romeo sends:
	<message to="${Juliet's phone's full JID}" type="chat">
		<body>Hello Juliet, on your phone.</body>
	</message>

Juliet's phone receives:
	<message to="${Juliet's phone's full JID}" from="${Romeo's full JID}" type="chat">
		<body>Hello Juliet, on your phone.</body>
	</message>

# Scene 2
# This requires the server to support offline messages (which is optional).

# Romeo sends a message to Juliet's bare JID. This is not immediately delivered, as she
# has not published presence on either of her resources.

Romeo sends:
	<message to="juliet@localhost" type="chat">
		<body>Hello Juliet, are you there?</body>
	</message>

# Juliet sends presence on her phone, and should receive the message there

Juliet's phone sends:
	<presence/>

Juliet's phone receives:
	<presence/>

Juliet's phone receives:
	<message from="${Romeo's full JID}" type="chat">
		<body>Hello Juliet, are you there?</body>
		<delay xmlns='urn:xmpp:delay' from='localhost' stamp='{scansion:any}' />
	</message>

# Romeo sends another bare-JID message, it should be delivered
# instantly to Juliet's phone

Romeo sends:
	<message to="juliet@localhost" type="chat">
		<body>Oh, hi!</body>
	</message>

Juliet's phone receives:
	<message from="${Romeo's full JID}" type="chat">
		<body>Oh, hi!</body>
	</message>

# Juliet's laptop goes online, but with a negative priority

Juliet sends:
	<presence>
		<priority>-1</priority>
	</presence>

Juliet receives:
	<presence from="${Juliet's full JID}">
		<priority>-1</priority>
	</presence>

Juliet's phone receives:
	<presence from="${Juliet's full JID}">
		<priority>-1</priority>
	</presence>

# Again, Romeo sends a message to her bare JID, but it should
# only get delivered to her phone:

Romeo sends:
	<message to="juliet@localhost" type="chat">
		<body>How are you?</body>
	</message>

Juliet's phone receives:
	<message from="${Romeo's full JID}" type="chat">
		<body>How are you?</body>
	</message>

# Romeo sends direct to Juliet's full JID, and she should receive it

Romeo sends:
	<message to="${Juliet's full JID}" type="chat">
		<body>Are you hiding?</body>
	</message>

Juliet receives:
	<message from="${Romeo's full JID}" type="chat">
		<body>Are you hiding?</body>
	</message>

# Juliet publishes non-negative presence

Juliet sends:
	<presence/>

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

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

# And now Romeo's bare JID messages get delivered to both resources
# (server behaviour may vary here)

Romeo sends:
	<message to="juliet@localhost" type="chat">
		<body>There!</body>
	</message>

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

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

# The End

Romeo disconnects

Juliet disconnects

Juliet's phone disconnects