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annotate mod_server_info/mod_server_info.lua @ 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 ed82916e5796
children f408b8e603af
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1 -- mod_server_info imported from Prosody commit 1ce18cb3e6cc for the benefit
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2 -- of 0.12 deployments. This community version of the module will not load in
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3 -- newer Prosody versions, which include their own copy of the module.
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4 --% conflicts: mod_server_info
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6 local dataforms = require "prosody.util.dataforms";
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8 local server_info_config = module:get_option("server_info", {});
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9 local server_info_custom_fields = module:get_option_array("server_info_extensions");
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11 -- Source: http://xmpp.org/registrar/formtypes.html#http:--jabber.org-network-serverinfo
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12 local form_layout = dataforms.new({
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13 { var = "FORM_TYPE"; type = "hidden"; value = "http://jabber.org/network/serverinfo" };
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14 });
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16 if server_info_custom_fields then
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17 for _, field in ipairs(server_info_custom_fields) do
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18 table.insert(form_layout, field);
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19 end
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20 end
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22 local generated_form;
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23
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24 function update_form()
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25 local new_form = form_layout:form(server_info_config, "result");
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26 if generated_form then
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27 module:remove_item("extension", generated_form);
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28 end
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29 generated_form = new_form;
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30 module:add_item("extension", generated_form);
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31 end
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33 function add_fields(event)
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34 local fields = event.item;
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35 for _, field in ipairs(fields) do
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36 table.insert(form_layout, field);
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37 end
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38 update_form();
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39 end
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41 function remove_fields(event)
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42 local removed_fields = event.item;
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43 for _, removed_field in ipairs(removed_fields) do
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44 local removed_var = removed_field.var or removed_field.name;
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45 for i, field in ipairs(form_layout) do
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46 local var = field.var or field.name
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47 if var == removed_var then
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48 table.remove(form_layout, i);
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49 break;
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50 end
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51 end
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52 end
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53 update_form();
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54 end
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56 module:handle_items("server-info-fields", add_fields, remove_fields);
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57
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58 function module.load()
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59 update_form();
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60 end