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plugins/archive.lua

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plugins/archive.lua @ 445:b119dc4d8bc2

plugins.smacks: Don't warn about zero stanzas acked It's only if the count somehow goes backwards that something is really wrong. An ack for zero stanzas is fine and we don't need to do anything.
author Kim Alvefur <zash@zash.se>
date Thu, 10 Jun 2021 11:58:23 +0200
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
380
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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:
diff changeset
137 end