prosody
0.11
plugins/mod_mam/mamprefsxml.lib.lua

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plugins/mod_mam/mamprefsxml.lib.lua @ 12798:c4b1b5cbc20b 0.11

Tag 0.11.14
author Kim Alvefur <zash@zash.se>
date Mon, 12 Dec 2022 07:03:31 +0100
parent 9728:d41ce505cdf9
child 12977:74b9e05af71e
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2017 Matthew Wild
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3 -- Copyright (C) 2008-2017 Waqas Hussain
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4 -- Copyright (C) 2011-2017 Kim Alvefur
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5 -- Copyright (C) 2018 Emmanuel Gil Peyrot
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6 --
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7 -- This project is MIT/X11 licensed. Please see the
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8 -- COPYING file in the source package for more information.
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9 --
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10 -- XEP-0313: Message Archive Management for Prosody
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11 --
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12
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13 local st = require"util.stanza";
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14 local jid_prep = require"util.jid".prep;
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15 local xmlns_mam = "urn:xmpp:mam:2";
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16
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17 local default_attrs = {
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18 always = true, [true] = "always",
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19 never = false, [false] = "never",
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20 roster = "roster",
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21 }
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22
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23 local function tostanza(prefs)
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24 local default = prefs[false];
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25 default = default_attrs[default];
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26 local prefstanza = st.stanza("prefs", { xmlns = xmlns_mam, default = default });
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27 local always = st.stanza("always");
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28 local never = st.stanza("never");
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29 for jid, choice in pairs(prefs) do
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30 if jid then
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31 (choice and always or never):tag("jid"):text(jid):up();
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32 end
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33 end
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34 prefstanza:add_child(always):add_child(never);
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35 return prefstanza;
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36 end
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37 local function fromstanza(prefstanza)
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38 local prefs = {};
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39 local default = prefstanza.attr.default;
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40 if default then
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41 prefs[false] = default_attrs[default];
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42 end
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43
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44 local always = prefstanza:get_child("always");
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45 if always then
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46 for rule in always:childtags("jid") do
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47 local jid = jid_prep(rule:get_text());
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48 if jid then
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49 prefs[jid] = true;
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50 end
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51 end
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52 end
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53
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54 local never = prefstanza:get_child("never");
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55 if never then
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56 for rule in never:childtags("jid") do
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57 local jid = jid_prep(rule:get_text());
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58 if jid then
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59 prefs[jid] = false;
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60 end
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61 end
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62 end
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63
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64 return prefs;
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65 end
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66
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67 return {
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68 tostanza = tostanza;
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69 fromstanza = fromstanza;
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70 }