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annotate mod_mam/rsm.lib.lua @ 4381:a1256e376dca

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mod_invites_register_api: reroute register call The token from the URI was not used anyway. In addition, we now return the resulting JID because it’s the only way to be sure.
author Jonas Schäfer <jonas@wielicki.name>
date Mon, 25 Jan 2021 16:55:39 +0100
parents 57ee26681561
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
701
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1 local stanza = require"util.stanza".stanza;
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2 local tostring, tonumber = tostring, tonumber;
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3 local type = type;
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4 local pairs = pairs;
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5
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6 local xmlns_rsm = 'http://jabber.org/protocol/rsm';
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7
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8 local element_parsers = {};
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9
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10 do
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11 local parsers = element_parsers;
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12 local function xs_int(st)
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13 return tonumber((st:get_text()));
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14 end
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15 local function xs_string(st)
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16 return st:get_text();
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17 end
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18
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19 parsers.after = xs_string;
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20 parsers.before = function(st)
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21 local text = st:get_text();
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22 return text == "" or text;
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23 end;
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24 parsers.max = xs_int;
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25 parsers.index = xs_int;
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26
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27 parsers.first = function(st)
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28 return { index = tonumber(st.attr.index); st:get_text() };
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29 end;
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30 parsers.last = xs_string;
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31 parsers.count = xs_int;
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32 end
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33
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34 local element_generators = setmetatable({
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35 first = function(st, data)
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36 if type(data) == "table" then
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37 st:tag("first", { index = data.index }):text(data[1]):up();
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38 else
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39 st:tag("first"):text(tostring(data)):up();
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40 end
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41 end;
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42 before = function(st, data)
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43 if data == true then
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44 st:tag("before"):up();
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45 else
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46 st:tag("before"):text(tostring(data)):up();
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47 end
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48 end
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49 }, {
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50 __index = function(_, name)
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51 return function(st, data)
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52 st:tag(name):text(tostring(data)):up();
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53 end
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54 end;
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55 });
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56
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57
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58 local function parse(set)
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59 local rs = {};
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60 for tag in set:childtags() do
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61 local name = tag.name;
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62 local parser = name and element_parsers[name];
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63 if parser then
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64 rs[name] = parser(tag);
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65 end
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66 end
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67 return rs;
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68 end
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69
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70 local function generate(t)
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71 local st = stanza("set", { xmlns = xmlns_rsm });
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72 for k,v in pairs(t) do
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73 if element_parsers[k] then
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74 element_generators[k](st, v);
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75 end
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76 end
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77 return st;
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78 end
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79
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80 local function get(st)
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81 local set = st:get_child("set", xmlns_rsm);
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82 if set and #set.tags > 0 then
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83 return parse(set);
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84 end
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85 end
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86
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87 return { parse = parse, generate = generate, get = get };