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plugins/archive.lua

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plugins/archive.lua @ 456:6a65142052c8

sasl: Include offered mechanisms in event when no supported mechanisms found This allows consumers of the event to determine what may be required in order to successfully authenticate.
author Matthew Wild <mwild1@gmail.com>
date Fri, 03 Mar 2023 12:10:54 +0000
parent 428:bde804b01f28
child 457:73d4eb93657b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
291
b78137f5118e plugins.archive: Add a header comment
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1 -- This implements XEP-0313: Message Archive Management
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2 -- http://xmpp.org/extensions/xep-0313.html
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3 -- (ie not XEP-0136)
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4
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b674f5ca85d4 plugins.archive: Add local verse
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5 local verse = require "verse";
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6 local st = require "util.stanza";
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7 local xmlns_mam = "urn:xmpp:mam:2"
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8 local xmlns_forward = "urn:xmpp:forward:0";
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9 local xmlns_delay = "urn:xmpp:delay";
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10 local uuid = require "util.uuid".generate;
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11 local parse_datetime = require "util.datetime".parse;
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12 local datetime = require "util.datetime".datetime;
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13 local dataform = require"util.dataforms".new;
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14 local rsm = require "util.rsm";
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15 local NULL = {};
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16
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17 local query_form = dataform {
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18 { name = "FORM_TYPE"; type = "hidden"; value = xmlns_mam; };
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19 { name = "with"; type = "jid-single"; };
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20 { name = "start"; type = "text-single" };
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21 { name = "end"; type = "text-single"; };
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22 };
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23
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24 function verse.plugins.archive(stream)
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25 function stream:query_archive(where, query_params, callback)
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26 local queryid = uuid();
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27 local query_st = st.iq{ type="set", to = where }
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28 :tag("query", { xmlns = xmlns_mam, queryid = queryid });
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29
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30
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31 local qstart, qend = tonumber(query_params["start"]), tonumber(query_params["end"]);
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32 query_params["start"] = qstart and datetime(qstart);
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33 query_params["end"] = qend and datetime(qend);
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34
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35 query_st:add_child(query_form:form(query_params, "submit"));
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36 -- query_st:up();
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37 query_st:add_child(rsm.generate(query_params));
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38
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39 local results = {};
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40 local function handle_archived_message(message)
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41
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42 local result_tag = message:get_child("result", xmlns_mam);
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43 if result_tag and result_tag.attr.queryid == queryid then
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44 local forwarded = result_tag:get_child("forwarded", xmlns_forward);
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45
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46 local id = result_tag.attr.id;
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47 local delay = forwarded:get_child("delay", xmlns_delay);
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48 local stamp = delay and parse_datetime(delay.attr.stamp) or nil;
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49
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50 local message = forwarded:get_child("message", "jabber:client")
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51
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52 results[#results+1] = { id = id, stamp = stamp, message = message };
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53 return true
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54 end
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55 end
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56
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57 self:hook("message", handle_archived_message, 1);
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58 self:send_iq(query_st, function(reply)
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59 self:unhook("message", handle_archived_message);
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60 if reply.attr.type == "error" then
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61 self:warn(table.concat({reply:get_error()}, " "))
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62 callback(false, reply:get_error())
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63 return true;
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64 end
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65 local finished = reply:get_child("fin", xmlns_mam)
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66 if finished then
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67 local rset = rsm.get(finished);
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68 for k,v in pairs(rset or NULL) do results[k]=v; end
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69 end
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70 callback(results);
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71 return true
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72 end);
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73 end
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74
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75 local default_attrs = {
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76 always = true, [true] = "always",
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77 never = false, [false] = "never",
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78 roster = "roster",
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79 }
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80
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81 local function prefs_decode(stanza) -- from XML
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82 local prefs = {};
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83 local default = stanza.attr.default;
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84
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85 if default then
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86 prefs[false] = default_attrs[default];
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87 end
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88
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89 local always = stanza:get_child("always");
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90 if always then
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91 for rule in always:childtags("jid") do
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92 local jid = rule:get_text();
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93 prefs[jid] = true;
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94 end
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95 end
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96
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97 local never = stanza:get_child("never");
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98 if never then
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99 for rule in never:childtags("jid") do
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100 local jid = rule:get_text();
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101 prefs[jid] = false;
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102 end
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103 end
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104 return prefs;
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105 end
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106
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107 local function prefs_encode(prefs) -- into XML
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108 local default
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109 default, prefs[false] = prefs[false], nil;
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110 if default ~= nil then
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111 default = default_attrs[default];
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112 end
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113 local reply = st.stanza("prefs", { xmlns = xmlns_mam, default = default })
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114 local always = st.stanza("always");
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115 local never = st.stanza("never");
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116 for k,v in pairs(prefs) do
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117 (v and always or never):tag("jid"):text(k):up();
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118 end
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119 return reply:add_child(always):add_child(never);
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120 end
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121
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122 function stream:archive_prefs_get(callback)
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123 self:send_iq(st.iq{ type="get" }:tag("prefs", { xmlns = xmlns_mam }),
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124 function(result)
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125 if result and result.attr.type == "result" and result.tags[1] then
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126 local prefs = prefs_decode(result.tags[1]);
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127 callback(prefs, result);
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128 else
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129 callback(nil, result);
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130 end
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131 end);
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132 end
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133
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134 function stream:archive_prefs_set(prefs, callback)
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135 self:send_iq(st.iq{ type="set" }:add_child(prefs_encode(prefs)), callback);
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136 end
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c5b7a4c717a6 plugins.archive: Experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
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