prosody
24b55f0e2db9
util/rsm.lua

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util/rsm.lua @ 12790:24b55f0e2db9 0.12

mod_http: Allow disabling CORS in the http_cors_override option and by default Fixes #1779. Due to an oversight in the logic, if the user set 'enabled' to false in an override, it would disable the item's requested CORS settings, but still apply Prosody's default CORS policy. This change ensures that 'enabled = false' will now disable CORS entirely for the requested item. Due to the new structure of the code, it was necessary to have a flag to say whether CORS is to be applied at all. Rather than hard-coding 'true' here, I chose to add a new option: 'http_default_cors_enabled'. This is a boolean that allows the operator to disable Prosody's default CORS policy entirely (the one that is used when a module or config does not override it). This makes it easier to disable CORS and then selectively enable it only on services you want it on.
author Matthew Wild <mwild1@gmail.com>
date Mon, 31 Oct 2022 14:32:02 +0000
parent 11428:d91def9fcfdd
child 12975:d10957394a3c
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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 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9 -- XEP-0313: Message Archive Management for Prosody
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10 --
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11
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12 local stanza = require"util.stanza".stanza;
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13 local tonumber = tonumber;
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14 local s_format = string.format;
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15 local type = type;
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16 local pairs = pairs;
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17
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18 local function inttostr(n)
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19 return s_format("%d", n);
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20 end
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21
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22 local xmlns_rsm = 'http://jabber.org/protocol/rsm';
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23
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24 local element_parsers = {};
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25
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26 do
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27 local parsers = element_parsers;
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28 local function xs_int(st)
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29 return tonumber((st:get_text()));
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30 end
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31 local function xs_string(st)
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32 return st:get_text();
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33 end
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34
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35 parsers.after = xs_string;
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36 parsers.before = function(st)
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37 local text = st:get_text();
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38 return text == "" or text;
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39 end;
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40 parsers.max = xs_int;
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41 parsers.index = xs_int;
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42
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43 parsers.first = function(st)
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44 return { index = tonumber(st.attr.index); st:get_text() };
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45 end;
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46 parsers.last = xs_string;
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47 parsers.count = xs_int;
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48 end
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49
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50 local element_generators = setmetatable({
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51 first = function(st, data)
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52 if type(data) == "table" then
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53 st:tag("first", { index = inttostr(data.index) }):text(data[1]):up();
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54 else
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55 st:text_tag("first", data);
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56 end
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57 end;
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58 before = function(st, data)
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59 if data == true then
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60 st:tag("before"):up();
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61 else
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62 st:text_tag("before", data);
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63 end
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64 end;
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65 max = function (st, data)
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66 st:text_tag("max", inttostr(data));
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67 end;
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68 index = function (st, data)
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69 st:text_tag("index", inttostr(data));
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70 end;
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71 count = function (st, data)
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72 st:text_tag("count", inttostr(data));
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73 end;
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74 }, {
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75 __index = function(_, name)
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76 return function(st, data)
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77 st:text_tag(name, data);
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78 end
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79 end;
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80 });
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81
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82
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83 local function parse(set)
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84 local rs = {};
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85 for tag in set:childtags() do
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86 local name = tag.name;
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87 local parser = name and element_parsers[name];
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88 if parser then
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89 rs[name] = parser(tag);
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90 end
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91 end
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92 return rs;
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93 end
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94
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95 local function generate(t)
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96 local st = stanza("set", { xmlns = xmlns_rsm });
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97 for k,v in pairs(t) do
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98 if element_parsers[k] then
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99 element_generators[k](st, v);
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100 end
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101 end
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102 return st;
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103 end
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104
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105 local function get(st)
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106 local set = st:get_child("set", xmlns_rsm);
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107 if set and #set.tags > 0 then
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108 return parse(set);
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109 end
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110 end
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111
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112 return { parse = parse, generate = generate, get = get };