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annotate mod_muc_media_metadata/README.markdown @ 5853:97c9b76867ca

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mod_log_ringbuffer: Detach event handlers on logging reload (thanks Menel) Otherwise the global event handlers accumulate, one added each time logging is reoladed, and each invocation of the signal or event triggers one dump of each created ringbuffer.
author Kim Alvefur <zash@zash.se>
date Sun, 03 Mar 2024 11:23:40 +0100
parents 0e1e775bdea0
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1 ---
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2 labels:
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3 - 'Stage-Alpha'
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4 summary: 'Experimental module to add metadata to media in MUCs'
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5 ...
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7 # Introduction
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9 This module adds additional metadata to media shared in a MUC. This can help clients
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10 make decisions and provide better UI and enhanced privacy, by knowing things like file
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11 size without needing to make external network requests.
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13 ::: {.alert .alert-danger}
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14 **NOTE:** This is an experimental module. It is not supported by any
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15 clients, and therefore is mainly of interest to client developers who
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16 wish to explore the idea.
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17 :::
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19 # Configuring
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21 ## Enabling
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23 ``` {.lua}
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24 Component "rooms.example.net" "muc"
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25 modules_enabled = {
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26 "muc_media_metadata";
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27 }
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28 ```
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30 ## Settings
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31
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32 There are no configuration options for this module.
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33
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34 # Developers
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36 ## Example stanzas
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38 A normal message in a chatroom containing an image:
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40 ```
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41 <message from="test@rooms.example.com/matthew" id="9f45a784-5e5b-4db5-a9b3-8ea1d7c1162d" type="groupchat">
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42 <body>https://matthewwild.co.uk/share.php/70334772-ff74-439b-8173-a71e40ca28db/mam-flow.png</body>
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43 <x xmlns="jabber:x:oob">
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44 <url>https://matthewwild.co.uk/share.php/70334772-ff74-439b-8173-a71e40ca28db/mam-flow.png</url>
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45 </x>
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46 </message>
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47 ```
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48
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49 The same stanza with this module loaded now contains additional metadata added by the server:
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51 ```
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52 <message from="test@rooms.example.com/matthew" id="9f45a784-5e5b-4db5-a9b3-8ea1d7c1162d" type="groupchat">
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53 <body>https://matthewwild.co.uk/share.php/70334772-ff74-439b-8173-a71e40ca28db/mam-flow.png</body>
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54 <x xmlns="jabber:x:oob">
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55 <url>https://matthewwild.co.uk/share.php/70334772-ff74-439b-8173-a71e40ca28db/mam-flow.png</url>
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56 <metadata xmlns="xmpp:prosody.im/protocol/media-metadata#0">
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57 <bytes>15690</bytes>
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58 <type>image/png</type>
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59 <blurhash>LEHV6nWB2yk8pyo0adR*.7kCMdnj</blurhash>
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60 </metadata>
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61 </x>
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62 </message>
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63 ```