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mod_muc_media_metadata/README.markdown

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mod_muc_media_metadata/README.markdown @ 4930:13070c6a7ce8

mod_http_muc_log: Fix exception on lack of trailing slash in room path A request to /room leads to the match call returning nil which in turn calls nodeprep(nil). In Prosody 0.11.x this does nothing and simply returns the nil, while in 0.12 it is an error. Now it redirects to the calendar view at /room/ - even for non-existant rooms. Discovered at a deployment with http_paths = { muc_log = "/" } and requests to /robots.txt and similar, which now result in a uses redirect before returning 404.
author Kim Alvefur <zash@zash.se>
date Fri, 22 Apr 2022 14:29:32 +0200
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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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12
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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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18
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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 ```