Mercurial > prosody-modules

annotate mod_muc_restrict_pm/mod_muc_restrict_pm.lua @ 5910:7358d1b64b1d

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mod_muc_restrict_pm: Limit who may send and recieve MUC PMs
author Nicholas George <wirlaburla@worlio.com>
date Tue, 21 May 2024 00:40:06 -0500
parents
children 9d0270680d1f
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5910
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1 local st = require "util.stanza";
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2
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3 local affils = {
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4 none = 0;
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5 member = 1;
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6 administrator = 2;
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7 owner = 3;
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8 };
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9
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10 local function get_restrict_pm(room)
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11 return room._data.restrict_pm or 'none';
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12 end
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13
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14 local function set_restrict_pm(room, affil)
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15 if get_restrict_pm(room) == affil then return false; end
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16 room._data.restrict_pm = affil;
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17 return true;
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18 end
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19
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20 local function can_pm_anyone(room)
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21 return room._data.restrict_pm_to or false;
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22 end
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23
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24 local function set_pm_anyone(room, val)
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25 if can_pm_anyone(room) == val then return false; end
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26 room._data.restrict_pm_to = val;
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27 return true;
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28 end
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29
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30 local function is_visitor_pm_off(room)
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31 return room._data.restrict_pm_visitor or false;
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32 end
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33
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34 local function set_visitor_pm_off(room, val)
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35 if is_visitor_pm_off(room) == val then return false; end
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36 room._data.restrict_pm_visitor = val;
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37 return true;
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38 end
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39
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40 module:hook("muc-config-form", function(event)
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41 local affilpm = get_restrict_pm(event.room);
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42 table.insert(event.form, {
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43 name = 'muc#restrict_pm';
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44 type = 'list-single';
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45 label = 'Allow PMs from';
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46 options = {
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47 { value = 'owner', label = 'Owner', default = affilpm == 'owner' },
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48 { value = 'administrator', label = 'Administrators', default = affilpm == 'administrator' },
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49 { value = 'member', label = 'Members', default = affilpm == 'member' },
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50 { value = 'none', label = 'Everyone', default = affilpm == 'none' }
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51 }
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52 });
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53
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54 table.insert(event.form, {
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55 name = 'muc#restrict_pm_to';
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56 type = 'boolean';
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57 label = 'Allow PMs to everyone';
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58 value = can_pm_anyone(event.room);
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59 });
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60
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61 table.insert(event.form, {
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62 name = 'muc#restrict_pm_visitor';
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63 type = 'boolean';
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64 label = 'Disable PMs from Visitors';
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65 value = is_visitor_pm_off(event.room);
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66 });
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67 end);
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68
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69 module:hook("muc-config-submitted/muc#restrict_pm", function(event)
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70 if set_restrict_pm(event.room, event.value) then
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71 event.status_codes["104"] = true;
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72 end
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73 end);
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74
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75 module:hook("muc-config-submitted/muc#restrict_pm_to", function(event)
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76 if set_pm_anyone(event.room, event.value) then
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77 event.status_codes["104"] = true;
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78 end
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79 end);
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80
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81 module:hook("muc-config-submitted/muc#restrict_pm_visitor", function(event)
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82 if set_visitor_pm_off(event.room, event.value) then
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83 event.status_codes["104"] = true;
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84 end
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85 end);
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86
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87 local function can_user_pm(room, jid)
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88 local affil, pmval = affils[room:get_affiliation(jid) or 'none'], affils[get_restrict_pm(room)];
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89 if affil >= pmval then return true; end
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90 return false;
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91 end
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92
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93 module:hook("muc-private-message", function(event)
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94 local from_occupant, to_occupant = event.room:get_occupant_by_nick(event.stanza.attr.from), event.room:get_occupant_by_nick(event.stanza.attr.to);
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95
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96 -- To self is always okay
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97 if to_occupant.bare_jid == from_occupant.bare_jid then return; end
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98
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99 -- To moderation is okay
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100 if to_occupant and to_occupant.role == 'moderator' then return; end
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101
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102 if not is_visitor_pm_off(event.room) or (from_occupant == nil or from_occupant.role ~= 'visitor') then
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103 -- If visitors disabled
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104 if can_user_pm(event.room, from_occupant.bare_jid) and (can_pm_anyone(event.room) or can_user_pm(event.room, to_occupant.bare_jid)) then return; end;
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105 end
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106
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107 event.room:route_to_occupant(from_occupant, st.error_reply(event.stanza, "cancel", "policy-violation", "Private messages are disabled", event.room.jid));
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108 return false;
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109 end, 1);