prosody-modules
5c2b96c4dde6
mod_mam/mod_mam.lua

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mod_mam/mod_mam.lua @ 706:5c2b96c4dde6

mod_mam: Enforce a max number of items returned, with a default.
author Kim Alvefur <zash@zash.se>
date Fri, 08 Jun 2012 21:01:44 +0200
parent 705:c9d0ba39a33b
child 707:f987c7b79008
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1 -- XEP-0313: Message Archive Management for Prosody
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2 -- Copyright (C) 2011-2012 Kim Alvefur
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3 --
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4 -- This file is MIT/X11 licensed.
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5
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6 local xmlns_mam = "urn:xmpp:mam:tmp";
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7 local xmlns_delay = "urn:xmpp:delay";
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8 local xmlns_forward = "urn:xmpp:forward:0";
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9
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10 local st = require "util.stanza";
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11 local rsm = module:require "rsm";
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12 local jid_bare = require "util.jid".bare;
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13 local jid_split = require "util.jid".split;
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14 local host = module.host;
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15
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16 local dm_load = require "util.datamanager".load;
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17 local dm_store = require "util.datamanager".store;
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18 local dm_list_load = require "util.datamanager".list_load;
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19 local dm_list_append = require "util.datamanager".list_append;
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20 local rm_load_roster = require "core.rostermanager".load_roster;
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21
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22 local tostring = tostring;
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23 local time_now = os.time;
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24 local m_min = math.min;,
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25 local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse;
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26 local uuid = require "util.uuid".generate;
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27 local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50);
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28 local global_default_policy = module:get_option("default_archive_policy", false);
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29 -- TODO Should be possible to enforce it too
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30
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31
672
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32 -- For translating preference names from string to boolean and back
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33 local default_attrs = {
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34 always = true, [true] = "always",
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35 never = false, [false] = "never",
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36 roster = "roster",
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37 }
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38
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39 do
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40 local prefs_format = {
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41 [false] = "roster",
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42 -- default ::= true | false | "roster"
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43 -- true = always, false = never, nil = global default
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44 ["romeo@montague.net"] = true, -- always
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45 ["montague@montague.net"] = false, -- newer
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46 };
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47 end
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48
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49 local archive_store = "archive2";
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50 local prefs_store = archive_store .. "_prefs";
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51 local function get_prefs(user)
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52 return dm_load(user, host, prefs_store) or
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53 { [false] = global_default_policy };
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54 end
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55 local function set_prefs(user, prefs)
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56 return dm_store(user, host, prefs_store, prefs);
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57 end
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58
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59
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60 -- Handle prefs.
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61 module:hook("iq/self/"..xmlns_mam..":prefs", function(event)
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62 local origin, stanza = event.origin, event.stanza;
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63 local user = origin.username;
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64 if stanza.attr.type == "get" then
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65 local prefs = get_prefs(user);
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66 local default = prefs[false];
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67 default = default ~= nil and default_attrs[default] or global_default_policy;
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68 local reply = st.reply(stanza):tag("prefs", { xmlns = xmlns_mam, default = default })
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69 local always = st.stanza("always");
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70 local never = st.stanza("never");
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71 for k,v in pairs(prefs) do
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72 if k then
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73 (v and always or never):tag("jid"):text(k):up();
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74 end
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75 end
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76 reply:add_child(always):add_child(never);
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77 origin.send(reply);
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78 return true
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79 else -- type == "set"
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80 local prefs = {};
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81 local new_prefs = stanza:get_child("prefs", xmlns_mam);
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82 local new_default = new_prefs.attr.default;
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83 if new_default then
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84 prefs[false] = default_attrs[new_default];
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85 end
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86
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87 local always = new_prefs:get_child("always");
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88 if always then
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89 for rule in always:childtags("jid") do
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90 local jid = rule:get_text();
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91 prefs[jid] = true;
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92 end
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93 end
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94
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95 local never = new_prefs:get_child("never");
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96 if never then
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97 for rule in never:childtags("jid") do
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98 local jid = rule:get_text();
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99 prefs[jid] = false;
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100 end
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101 end
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102
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103 local ok, err = set_prefs(user, prefs);
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104 if not ok then
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105 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error storing preferences: "..tostring(err)));
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106 else
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107 origin.send(st.reply(stanza));
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108 end
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109 return true
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110 end
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111 end);
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112
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113 -- Handle archive queries
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114 module:hook("iq/self/"..xmlns_mam..":query", function(event)
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115 local origin, stanza = event.origin, event.stanza;
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116 local query = stanza.tags[1];
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117 if stanza.attr.type == "get" then
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118 local qid = query.attr.queryid;
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119
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120 -- Search query parameters
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121 local qwith = query:get_child_text("with");
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122 local qstart = query:get_child_text("start");
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123 local qend = query:get_child_text("end");
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124 local qset = rsm.get(query);
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125 module:log("debug", "Archive query, id %s with %s from %s until %s)",
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126 tostring(qid), qwith or "anyone", qstart or "the dawn of time", qend or "now");
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127
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128 qstart, qend = (qstart and timestamp_parse(qstart)), (qend and timestamp_parse(qend))
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129
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130 -- Load all the data!
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131 local data, err = dm_list_load(origin.username, origin.host, archive_store);
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132 if not data then
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parents: 523
diff changeset
133 if (not err) then
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
134 module:log("debug", "The archive was empty.");
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
135 origin.send(st.reply(stanza));
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
136 else
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
137 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error loading archive: "..tostring(err)));
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
138 end
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
139 return true
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
140 end
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
141
701
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
142 -- RSM stuff
706
5c2b96c4dde6 mod_mam: Enforce a max number of items returned, with a default.
Kim Alvefur <zash@zash.se>
parents: 705
diff changeset
143 local qmax = m_min(qset and qset.max or default_max_items, max_max_items);
701
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
144 local qset_matches = not (qset and qset.after);
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
145 local first, last, index;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
146 local n = 0;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
147 local start = qset and qset.index or 1;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
148
558
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
149 module:log("debug", "Loaded %d items, about to filter", #data);
701
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
150 for i=start,#data do
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
151 local item = data[i];
558
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
152 local when, with, with_bare = item.when, item.with, item.with_bare;
666
b42b75f3bda0 mod_mam: Add the UID to the <result> when sending an archived message back.
Thijs Alkemade <thijsalkemade@gmail.com>
parents: 635
diff changeset
153 local id = item.id;
701
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
154 --module:log("debug", "id is %s", id);
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
155
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
156 -- RSM pre-send-checking
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
157 if qset then
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
158 if qset.before == id then
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
159 module:log("debug", "End of matching range found");
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
160 qset_matches = false;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
161 break;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
162 end
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
163 end
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
164
558
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
165 --module:log("debug", "message with %s at %s", with, when or "???");
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
166 -- Apply query filter
558
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
167 if (not qwith or ((qwith == with) or (qwith == with_bare)))
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
168 and (not qstart or when >= qstart)
701
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
169 and (not qend or when <= qend)
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
170 and (not qset or qset_matches) then
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
171 local fwd_st = st.message{ to = origin.full_jid }
666
b42b75f3bda0 mod_mam: Add the UID to the <result> when sending an archived message back.
Thijs Alkemade <thijsalkemade@gmail.com>
parents: 635
diff changeset
172 :tag("result", { xmlns = xmlns_mam, queryid = qid, id = id }):up()
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
173 :tag("forwarded", { xmlns = xmlns_forward })
702
d94ee0848b27 mod_mam: Fix issue with get_text() and clean some unneeded variables.
Kim Alvefur <zash@zash.se>
parents: 701
diff changeset
174 :tag("delay", { xmlns = xmlns_delay, stamp = timestamp(when) }):up();
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
175 local orig_stanza = st.deserialize(item.stanza);
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
176 orig_stanza.attr.xmlns = "jabber:client";
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
177 fwd_st:add_child(orig_stanza);
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
178 origin.send(fwd_st);
701
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
179 if not first then
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
180 index = i;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
181 first = id;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
182 end
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
183 last = id;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
184 n = n + 1;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
185 elseif (qend and when > qend) then
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
186 module:log("debug", "We have passed into messages more recent than requested");
673
9dcf98018644 mod_mam: Break when the message is more recent than the range requested
Kim Alvefur <zash@zash.se>
parents: 672
diff changeset
187 break -- We have passed into messages more recent than requested
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
188 end
701
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
189
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
190 -- RSM post-send-checking
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
191 if qset then
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
192 if qset.after == id then
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
193 module:log("debug", "Start of matching range found");
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
194 qset_matches = true;
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
195 end
706
5c2b96c4dde6 mod_mam: Enforce a max number of items returned, with a default.
Kim Alvefur <zash@zash.se>
parents: 705
diff changeset
196 if n >= qmax then
701
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
197 module:log("debug", "Max number of items matched");
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
198 break
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
199 end
cc5805f83583 mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents: 675
diff changeset
200 end
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
201 end
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
202 -- That's all folks!
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
203 module:log("debug", "Archive query %s completed", tostring(qid));
705
c9d0ba39a33b mod_mam: Move RSM pointer to last message into a MAM-namespaced child
Kim Alvefur <zash@zash.se>
parents: 702
diff changeset
204
c9d0ba39a33b mod_mam: Move RSM pointer to last message into a MAM-namespaced child
Kim Alvefur <zash@zash.se>
parents: 702
diff changeset
205 local reply = st.reply(stanza);
c9d0ba39a33b mod_mam: Move RSM pointer to last message into a MAM-namespaced child
Kim Alvefur <zash@zash.se>
parents: 702
diff changeset
206 if last then
c9d0ba39a33b mod_mam: Move RSM pointer to last message into a MAM-namespaced child
Kim Alvefur <zash@zash.se>
parents: 702
diff changeset
207 -- This is a bit redundant, isn't it?
c9d0ba39a33b mod_mam: Move RSM pointer to last message into a MAM-namespaced child
Kim Alvefur <zash@zash.se>
parents: 702
diff changeset
208 reply:query(xmlns_mam):add_child(rsm.generate{last = last});
c9d0ba39a33b mod_mam: Move RSM pointer to last message into a MAM-namespaced child
Kim Alvefur <zash@zash.se>
parents: 702
diff changeset
209 end
c9d0ba39a33b mod_mam: Move RSM pointer to last message into a MAM-namespaced child
Kim Alvefur <zash@zash.se>
parents: 702
diff changeset
210 origin.send(reply);
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
211 return true
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
212 end
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
213 end);
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
214
558
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
215 local function has_in_roster(user, who)
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
216 local roster = rm_load_roster(user, host);
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
217 module:log("debug", "%s has %s in roster? %s", user, who, roster[who] and "yes" or "no");
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
218 return roster and roster[who];
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
219 end
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
220
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
221 local function shall_store(user, who)
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
222 -- TODO Cache this?
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
223 local prefs = get_prefs(user);
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
224 local rule = prefs[who];
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
225 module:log("debug", "%s's rule for %s is %s", user, who, tostring(rule))
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
226 if rule ~= nil then
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
227 return rule;
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
228 else -- Below could be done by a metatable
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
229 local default = prefs[false];
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
230 module:log("debug", "%s's default rule is %s", user, tostring(default))
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
231 if default == nil then
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
232 default = global_default_policy;
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
233 module:log("debug", "Using global default rule, %s", tostring(default))
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
234 end
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
235 if default == "roster" then
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
236 return has_in_roster(user, who);
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
237 end
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
238 return default;
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
239 end
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
240 end
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
241
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
242 -- Handle messages
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
243 local function message_handler(event, c2s)
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
244 local origin, stanza = event.origin, event.stanza;
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
245 local orig_type = stanza.attr.type or "normal";
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
246 local orig_to = stanza.attr.to;
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
247 local orig_from = stanza.attr.from;
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
248
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
249 if not orig_from and c2s then
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
250 orig_from = origin.full_jid;
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
251 end
619
cade7dac6159 mod_mam: Try to not bork when sending a message to your bare jid
Kim Alvefur <zash@zash.se>
parents: 559
diff changeset
252 orig_to = orig_to or orig_from; -- Weird corner cases
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
253
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
254 -- Don't store messages of these types
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
255 if orig_type == "error"
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
256 or orig_type == "headline"
671
74efb2db00a6 mod_mam: From the spec: servers SHOULD NOT archive messages that do not have a <body/> child tag.
Thijs Alkemade <thijsalkemade@gmail.com>
parents: 666
diff changeset
257 or orig_type == "groupchat"
74efb2db00a6 mod_mam: From the spec: servers SHOULD NOT archive messages that do not have a <body/> child tag.
Thijs Alkemade <thijsalkemade@gmail.com>
parents: 666
diff changeset
258 or not stanza:get_child("body") then
523
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
259 return;
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
260 -- TODO Maybe headlines should be configurable?
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
261 -- TODO Write a mod_mam_muc for groupchat messages.
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
262 end
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
263
eff140d53b83 mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff changeset
264 local store_user, store_host = jid_split(c2s and orig_from or orig_to);
558
66de25ffc8d9 mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents: 523
diff changeset
265 local target_jid = c2s and orig_to or orig_from;
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266 local target_bare = jid_bare(target_jid);
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267
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268 if shall_store(store_user, target_bare) then
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269 module:log("debug", "Archiving stanza: %s", stanza:top_tag());
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270
559
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271 local id = uuid();
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272 local when = time_now();
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273 -- And stash it
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274 local ok, err = dm_list_append(store_user, store_host, archive_store, {
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275 -- WARNING This format may change.
559
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276 id = id,
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277 when = when,
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278 with = target_jid,
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279 with_bare = target_bare, -- Optimization, to avoid loads of jid_bare() calls when filtering.
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280 stanza = st.preserialize(stanza)
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281 });
672
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282 --[[ This was dropped from the spec
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283 if ok then
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284 stanza:tag("archived", { xmlns = xmlns_mam, by = host, id = id }):up();
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285 end
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286 --]]
558
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287 else
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288 module:log("debug", "Not archiving stanza: %s", stanza:top_tag());
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289 end
523
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290 end
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291
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292 local function c2s_message_handler(event)
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293 return message_handler(event, true);
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294 end
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295
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296 -- Stanzas sent by local clients
621
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297 module:hook("pre-message/bare", c2s_message_handler, 2);
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298 module:hook("pre-message/full", c2s_message_handler, 2);
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299 -- Stanszas to local clients
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300 module:hook("message/bare", message_handler, 2);
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301 module:hook("message/full", message_handler, 2);
523
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302
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303 module:add_feature(xmlns_mam);
558
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304