Mercurial > prosody-modules

annotate mod_mam/mamprefsxml.lib.lua @ 4362:116c88c28532

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mod_http_admin_api: restructure group-related info in API - Return the members of the group right in the get_group_by_id call. This is an O(1) of extra work. - Remove the groups attribute from get_user_by_name as that is O(n) of work and rarely immediately needed. The replacement for the group membership information in the user is for now to use the group API and iterate; future work may fix that.
author Jonas Schäfer <jonas@wielicki.name>
date Wed, 20 Jan 2021 15:30:29 +0100
parents 5941aac79f06
children
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0d6ab5e4bc30 mod_mam: Break out routines for converting prefs between XML and our internal representation into a library
Kim Alvefur <zash@zash.se>
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1 -- XEP-0313: Message Archive Management for Prosody
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Kim Alvefur <zash@zash.se>
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2 -- Copyright (C) 2011-2013 Kim Alvefur
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3 --
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4 -- This file is MIT/X11 licensed.
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5
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6 local st = require"util.stanza";
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7
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8 local default_attrs = {
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9 always = true, [true] = "always",
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10 never = false, [false] = "never",
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11 roster = "roster",
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12 }
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13
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14 local function tostanza(prefs, xmlns_mam)
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15 local default = prefs[false];
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16 default = default_attrs[default];
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17 local prefstanza = st.stanza("prefs", { xmlns = xmlns_mam, default = default });
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18 local always = st.stanza("always");
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19 local never = st.stanza("never");
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20 for jid, choice in pairs(prefs) do
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21 if jid then
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22 (choice and always or never):tag("jid"):text(jid):up();
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23 end
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24 end
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25 prefstanza:add_child(always):add_child(never);
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26 return prefstanza;
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27 end
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28 local function fromstanza(prefstanza)
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29 local prefs = {};
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30 local default = prefstanza.attr.default;
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31 if default then
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32 prefs[false] = default_attrs[default];
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33 end
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34
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35 local always = prefstanza:get_child("always");
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36 if always then
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37 for rule in always:childtags("jid") do
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38 local jid = rule:get_text();
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39 prefs[jid] = true;
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40 end
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41 end
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42
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43 local never = prefstanza:get_child("never");
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44 if never then
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45 for rule in never:childtags("jid") do
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46 local jid = rule:get_text();
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47 prefs[jid] = false;
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48 end
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49 end
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50
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51 return prefs;
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52 end
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53
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54 return {
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55 tostanza = tostanza;
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56 fromstanza = fromstanza;
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57 }