prosody-modules
8474a3b80200
mod_muc_badge/mod_muc_badge.lua

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mod_muc_badge/mod_muc_badge.lua @ 5160:8474a3b80200

mod_firewall: Fix 'is_admin' internal dependency rule #1797 (thanks diane) Looks like the boolean logic was inverted here. Instead, for now, simply check if is_admin is there. It is deprecated in trunk and was briefly removed before being brought back with a 'deprecated' warning as part of the new roles and permissions work. Making this dependency conditioned on the existence of the underlying function should make it work until it actually goes away for real.
author Kim Alvefur <zash@zash.se>
date Fri, 27 Jan 2023 23:06:25 +0100
parent 4982:8a4b17e2e984
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1 -- MIT License
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2 --
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3 -- Copyright (c) 2018 Kim Alvefur
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4 --
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5 -- Permission is hereby granted, free of charge, to any person obtaining a copy
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6 -- of this software and associated documentation files (the "Software"), to deal
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7 -- in the Software without restriction, including without limitation the rights
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8 -- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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9 -- copies of the Software, and to permit persons to whom the Software is
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10 -- furnished to do so, subject to the following conditions:
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11 --
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12 -- The above copyright notice and this permission notice shall be included in
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13 -- all copies or substantial portions of the Software.
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14 --
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15 -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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16 -- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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17 -- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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18 -- IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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19 -- CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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20 -- TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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21 -- SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22
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23 module:depends"http";
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24
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25 local jid_prep = require "util.jid".prep;
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26 local jid_split = require "util.jid".split;
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27
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28 -- Support both old and new MUC code
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29 local mod_muc = module:depends"muc";
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30 local rooms = rawget(mod_muc, "rooms");
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31 local get_room_from_jid = rawget(mod_muc, "get_room_from_jid") or
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32 function (jid)
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33 return rooms[jid];
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34 end
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35
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36 -- I believe the origins of this template to be in the public domain as per
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37 -- https://github.com/badges/shields/blob/master/LICENSE.md
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38 local template = module:get_option_string("badge_template", [[
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39 <?xml version="1.0"?>
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40 <svg xmlns="http://www.w3.org/2000/svg" width="{width}" height="20">
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41 <linearGradient id="b" x2="0" y2="100%">
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42 <stop offset="0" stop-color="#bbb" stop-opacity=".1"/>
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43 <stop offset="1" stop-opacity=".1"/>
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44 </linearGradient>
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45 <clipPath id="a">
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46 <rect width="{width}" height="20" rx="3" fill="#fff"/>
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47 </clipPath>
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48 <g clip-path="url(#a)">
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49 <path fill="#555" d="M0 0h{labelwidth}v20H0z"/>
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50 <path fill="#fe7d37" d="M{labelwidth} 0h{countwidth}v20H{labelwidth}z"/>
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51 <path fill="url(#b)" d="M0 0h{width}v20H0z"/>
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52 </g>
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53 <g fill="#fff" font-family="DejaVu Sans,Verdana,Geneva,sans-serif" font-size="11" xml:space="preserve">
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54 <text fill="#010101" fill-opacity=".3" y="14" x="0" textLength="{labelwidth}">{label}</text>
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55 <text y="13" x="0" textLength="{labelwidth}">{label}</text>
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56 <text fill="#010101" fill-opacity=".3" y="14" x="{labelwidth}" textLength="{countwidth}">{number}</text>
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57 <text y="13" x="{labelwidth}" textLength="{countwidth}">{number}</text>
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58 </g>
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59 </svg>
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60 ]]);
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61 template = assert(require "util.template"(template));
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62
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63 local number = module:get_option_string("badge_count", "%d online");
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64 local charwidth = 7;
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65
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66 module:provides("http", {
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67 route = {
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68 ["GET /*"] = function (event, path)
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69 local jid = jid_prep(path);
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70 if not jid then return end
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71
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72 local room = get_room_from_jid(jid);
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73 if not room then return end
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74 if (room.get_hidden or room.is_hidden)(room) then return end
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75
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76 local count = 0;
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77 for _ in pairs(room._occupants) do
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78 count = count + 1;
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79 end
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80 local badge_label = (" %s "):format(room:get_name() or jid_split(jid));
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81 local badge_count = (" %s "):format(string.format(number, count));
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82
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83 local response = event.response;
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84 response.headers.content_type = "image/svg+xml";
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85 local svg = [[<?xml version="1.0"?>]] ..
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86 tostring(template.apply({
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87 label = badge_label;
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88 number = badge_count;
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89 width = ("%d"):format( (#badge_label + #badge_count) * charwidth );
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90 labelwidth = ("%d"):format( #badge_label * charwidth );
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91 countwidth = ("%d"):format( #badge_count * charwidth );
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92 }));
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93 return svg;
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94 end;
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95 }
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96 });