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<!--{{External Module}}-->
<!--{{External Module}}-->
{{ambox | type = delete | text = '''This external module is a work in progress.'''<br/><small>Please note that it requires the latest development version of ZNC.<br/>Contact the author if you have any questions, but feel free to ask on IRC, someone might able to help you there, too.</small>}}
{{External Module}}


The advanced playback module makes it possible for IRC clients to avoid undesired repetitive buffer playback. IRC clients may request the module to send a partial buffer playback starting from a certain point of time.
The advanced playback module makes it possible for IRC clients to avoid undesired repetitive buffer playback. IRC clients may request the module to send a partial buffer playback starting from and ending to a certain point of time.


The source code and more detailed documentation is available on [https://github.com/jpnurmi/znc-playback GitHub]. See also instructions for [[compiling modules]].
The source code is available on [https://github.com/jpnurmi/znc-playback GitHub]. See also instructions for [[compiling modules]].


== Usage ==
{{Module arguments|no}}
 
Please note that Playback is a Global module.  Global modules can only be (un)loaded by a ZNC Admin. If the module does not appear in the module list within Webadmin, try loading the module with:
<code>/msg *status loadmod playback</code>
 
=== Persistent Buffers ===
The module has been designed to be used together with persistent buffers. Either uncheck Auto Clear Chan Buffer and Auto Clear Query Buffer (Your Settings -> Flags) via [[webadmin]] or disable <code>AutoClearChanBuffer</code> and <code>AutoClearQueryBuffer</code> via [[controlpanel]].
 
=== Message tags ===
The module implementation is based on the IRC v3.2 message tags [1] and server time [2] extensions. The module injects a server time tag (in millisecond precision) to each message sent from ZNC to an IRC client that has requested the <code>znc.in/playback</code> capability.
 
* [1] http://ircv3.net/specs/core/message-tags-3.2.html
* [2] http://ircv3.net/specs/extensions/server-time-3.2.html
 
=== Usage ===
In order for an IRC client to support advanced playback, it should request
the <code>znc.in/playback</code> capability and keep track of the latest server time
of received messages. The syntax for a buffer playback request is:
 
    /znc *playback PLAY <buffer(s)> [from] [to]
 
Where the first argument is a comma-separated list of channels (supports
wildcards), and optional last two arguments are number of seconds (floating
point for millisecond precision) elapsed since January 1, 1970.
 
When a client connects to ZNC, it may request the module to play all
buffers, starting from *0* (first connect) or the timestamp of the
latest received message (consecutive reconnects).
 
    /znc *playback PLAY * 0
 
It is also possible to selectively clear playback buffers using the
following command syntax:
 
    /znc *playback CLEAR <buffer(s)>
 
If a client wants to list available buffers, it can use the following
command syntax:
 
    /znc *playback LIST [buffer(s)]
 
The module outputs a list of available/matching buffers, one per line,
each followed by the first and last timestamp for the respective buffer.
 
See also [[query buffers]].


{{Module arguments|no}}
'Note: using PRIVMSG instead of ZNC can result to other connected clients having queries with *playback with content of the commands called.'
 
=== Limits ===
 
The module also allows configuring client specific buffer limits for
identified clients, using the following command syntax:
 
    /msg *playback LIMIT <client> [limit]
 
A limit of less or equal to 0 clears the limit. Notice that the limit
cannot exceed the limit set in the ZNC configuration, but can be used
to limit the playback for eg. mobile clients.
 
=== Client identifiers ===
 
ZNC supports passing a client identifier in the password:
 
    username@identifier/network:password
 
or in the username:
 
    username@identifier/network


=== Commands ===
=== Supported clients ===
Send playback buffers for given channels:
/msg *playback PLAY <#chan(s)> [<timestamp>]


Tell the current server timestamp:
* [http://textualapp.com Textual IRC client] (Mac OS X)
/msg *playback TIME
* [http://colloquy.mobi Mobile Colloquy] (iOS)
* [https://github.com/communi/communi-desktop Communi for desktop] (Mac OS X, Linux, Windows)
* [https://github.com/communi/communi-sailfish Communi for SailfishOS]
* [https://palaverapp.com Palaver] (iOS)
* [http://mutterirc.com Mutter] (iOS)


Clear playback buffers for given channels:
==== Scripts ====
/msg *playback CLEAR <#chan(s)>


== Supported clients ==
* [[HexChat#Scripts]]
* [https://github.com/AndrioCelos/kvirc-scripts/tree/capabilities/zncplayback KVIrc 4.9.2+].
* [https://weechat.org/scripts/source/zncplayback.py.html Weechat via <code>zncplayback.py</code>].


This module is a work in progress. At the time of writing this, the necessary enablers have just landed to ZNC. For the time being, there are no officially supported clients, but a proof of concept implementation exists for the Textual IRC client for Mac OS X. The source code of that is also available on [https://github.com/jpnurmi/Textual/commits/playback GitHub].
=== Open tickets ===
* [https://hexchat.github.io HexChat] (https://github.com/hexchat/hexchat/issues/1109)
* [https://play.google.com/store/apps/details?id=com.fusionx.lightirc&hl=en HoloIRC] (https://github.com/tilal6991/HoloIRC/issues/92)
* [https://weechat.org WeeChat] (https://github.com/weechat/weechat/issues/323)


[[Category:Modules]]
[[Category:Modules]]
[[Category:External Modules]]

Latest revision as of 20:45, 12 April 2023

The advanced playback module makes it possible for IRC clients to avoid undesired repetitive buffer playback. IRC clients may request the module to send a partial buffer playback starting from and ending to a certain point of time.

The source code is available on GitHub. See also instructions for compiling modules.

Arguments

This user module takes no arguments.

Read loading modules to learn more about loading modules.

Please note that Playback is a Global module. Global modules can only be (un)loaded by a ZNC Admin. If the module does not appear in the module list within Webadmin, try loading the module with: /msg *status loadmod playback

Persistent Buffers

The module has been designed to be used together with persistent buffers. Either uncheck Auto Clear Chan Buffer and Auto Clear Query Buffer (Your Settings -> Flags) via webadmin or disable AutoClearChanBuffer and AutoClearQueryBuffer via controlpanel.

Message tags

The module implementation is based on the IRC v3.2 message tags [1] and server time [2] extensions. The module injects a server time tag (in millisecond precision) to each message sent from ZNC to an IRC client that has requested the znc.in/playback capability.

Usage

In order for an IRC client to support advanced playback, it should request the znc.in/playback capability and keep track of the latest server time of received messages. The syntax for a buffer playback request is:

   /znc *playback PLAY <buffer(s)> [from] [to]

Where the first argument is a comma-separated list of channels (supports wildcards), and optional last two arguments are number of seconds (floating point for millisecond precision) elapsed since January 1, 1970.

When a client connects to ZNC, it may request the module to play all buffers, starting from *0* (first connect) or the timestamp of the latest received message (consecutive reconnects).

   /znc *playback PLAY * 0

It is also possible to selectively clear playback buffers using the following command syntax:

   /znc *playback CLEAR <buffer(s)>

If a client wants to list available buffers, it can use the following command syntax:

   /znc *playback LIST [buffer(s)]

The module outputs a list of available/matching buffers, one per line, each followed by the first and last timestamp for the respective buffer.

See also query buffers.

'Note: using PRIVMSG instead of ZNC can result to other connected clients having queries with *playback with content of the commands called.'

Limits

The module also allows configuring client specific buffer limits for identified clients, using the following command syntax:

   /msg *playback LIMIT <client> [limit]

A limit of less or equal to 0 clears the limit. Notice that the limit cannot exceed the limit set in the ZNC configuration, but can be used to limit the playback for eg. mobile clients.

Client identifiers

ZNC supports passing a client identifier in the password:

   username@identifier/network:password

or in the username:

   username@identifier/network

Supported clients

Scripts

Open tickets