prosody
7e9ebdc75ce4
plugins/mod_mam/mamprefsxml.lib.lua

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plugins/mod_mam/mamprefsxml.lib.lua @ 12480:7e9ebdc75ce4

net: isolate LuaSec-specifics For this, various accessor functions are now provided directly on the sockets, which reach down into the LuaSec implementation to obtain the information. While this may seem of little gain at first, it hides the implementation detail of the LuaSec+LuaSocket combination that the actual socket and the TLS layer are separate objects. The net gain here is that an alternative implementation does not have to emulate that specific implementation detail and "only" has to expose LuaSec-compatible data structures on the new functions.
author Jonas Schäfer <jonas@wielicki.name>
date Wed, 27 Apr 2022 17:44:14 +0200
parent 9728:d41ce505cdf9
child 12977:74b9e05af71e
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rev   line source
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Kim Alvefur <zash@zash.se>
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1 -- Prosody IM
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Kim Alvefur <zash@zash.se>
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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 }