verse
ef66f302fe97
plugins/archive.lua

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plugins/archive.lua @ 412:ef66f302fe97

plugins.archive: Don't require 'queryid' attribute in iq response Not needed since <fin> moved out of the last <message>
author Kim Alvefur <zash@zash.se>
date Sat, 31 Mar 2018 15:43:28 +0200
parent 409:171c4a8cc3de
child 413:41c67bf8c010
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 forwarded = forwarded or message:get_child("forwarded", xmlns_forward); -- COMPAT XEP-0313 pre 2013-05-31
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46
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47 local id = result_tag.attr.id;
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48 local delay = forwarded:get_child("delay", xmlns_delay);
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49 local stamp = delay and parse_datetime(delay.attr.stamp) or nil;
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50
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51 local message = forwarded:get_child("message", "jabber:client")
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52
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53 results[#results+1] = { id = id, stamp = stamp, message = message };
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54 return true
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55 end
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56 end
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57
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58 self:hook("message", handle_archived_message, 1);
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59 self:send_iq(query_st, function(reply)
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60 self:unhook("message", handle_archived_message);
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61 if reply.attr.type == "error" then
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62 self:warn(table.concat({reply:get_error()}, " "))
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63 callback(false, reply:get_error())
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64 return true;
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65 end
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66 local finnished = reply:get_child("fin", xmlns_mam)
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67 if finnished then
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68 local rset = rsm.get(finnished);
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69 for k,v in pairs(rset or NULL) do results[k]=v; 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 end
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75
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76 local default_attrs = {
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77 always = true, [true] = "always",
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78 never = false, [false] = "never",
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79 roster = "roster",
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80 }
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81
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82 local function prefs_decode(stanza) -- from XML
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83 local prefs = {};
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84 local default = stanza.attr.default;
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85
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86 if default then
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87 prefs[false] = default_attrs[default];
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88 end
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89
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90 local always = stanza:get_child("always");
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91 if always then
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92 for rule in always:childtags("jid") do
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93 local jid = rule:get_text();
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94 prefs[jid] = true;
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95 end
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96 end
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97
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98 local never = stanza:get_child("never");
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99 if never then
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100 for rule in never:childtags("jid") do
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101 local jid = rule:get_text();
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102 prefs[jid] = false;
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103 end
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104 end
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105 return prefs;
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106 end
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107
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108 local function prefs_encode(prefs) -- into XML
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109 local default
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110 default, prefs[false] = prefs[false], nil;
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111 if default ~= nil then
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112 default = default_attrs[default];
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113 end
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114 local reply = st.stanza("prefs", { xmlns = xmlns_mam, default = default })
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115 local always = st.stanza("always");
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116 local never = st.stanza("never");
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117 for k,v in pairs(prefs) do
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118 (v and always or never):tag("jid"):text(k):up();
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119 end
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120 return reply:add_child(always):add_child(never);
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121 end
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122
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123 function stream:archive_prefs_get(callback)
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124 self:send_iq(st.iq{ type="get" }:tag("prefs", { xmlns = xmlns_mam }),
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125 function(result)
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126 if result and result.attr.type == "result" and result.tags[1] then
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127 local prefs = prefs_decode(result.tags[1]);
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128 callback(prefs, result);
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129 else
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130 callback(nil, result);
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131 end
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132 end);
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133 end
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134
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135 function stream:archive_prefs_set(prefs, callback)
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136 self:send_iq(st.iq{ type="set" }:add_child(prefs_encode(prefs)), callback);
ac039aa3a4ef plugins.archive: Implement archiving preferences
Kim Alvefur <zash@zash.se>
parents: 293
diff changeset
137 end
273
c5b7a4c717a6 plugins.archive: Experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
138 end