Mercurial > prosody-modules
annotate mod_mam/mod_mam.lua @ 2554:19bb4606013f
mod_firewall: Fix everything wrong with SENT_DIRECTED_PRESENCE_TO_SENDER
author | Matthew Wild <mwild1@gmail.com> |
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date | Thu, 23 Feb 2017 14:11:31 +0000 |
parents | 248054199d0f |
children | 0f44d04d0d18 |
rev | line source |
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635 | 1 -- XEP-0313: Message Archive Management for Prosody |
2000
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2 -- Copyright (C) 2011-2016 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_mam0 = "urn:xmpp:mam:0"; |
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7 local xmlns_mam1 = "urn:xmpp:mam:1"; |
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8 local xmlns_mam2 = "urn:xmpp:mam:2"; |
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9 local xmlns_delay = "urn:xmpp:delay"; |
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10 local xmlns_forward = "urn:xmpp:forward:0"; |
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11 local xmlns_st_id = "urn:xmpp:sid:0"; |
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12 |
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13 local um = require "core.usermanager"; |
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14 local st = require "util.stanza"; |
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15 local rsm = module:require "rsm"; |
1399 | 16 local get_prefs = module:require"mamprefs".get; |
17 local set_prefs = module:require"mamprefs".set; | |
18 local prefs_to_stanza = module:require"mamprefsxml".tostanza; | |
19 local prefs_from_stanza = module:require"mamprefsxml".fromstanza; | |
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20 local jid_bare = require "util.jid".bare; |
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21 local jid_split = require "util.jid".split; |
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22 local jid_prepped_split = require "util.jid".prepped_split; |
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23 local dataform = require "util.dataforms".new; |
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24 local host = module.host; |
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25 |
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26 local rm_load_roster = require "core.rostermanager".load_roster; |
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27 |
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28 local getmetatable = getmetatable; |
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29 local function is_stanza(x) |
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30 return getmetatable(x) == st.stanza_mt; |
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31 end |
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32 |
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33 local tostring = tostring; |
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34 local time_now = os.time; |
707 | 35 local m_min = math.min; |
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36 local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse; |
706
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37 local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50); |
2017
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mod_mam: Enable archiving by default, less of a privacy issue if messages expire
Kim Alvefur <zash@zash.se>
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38 local global_default_policy = module:get_option("default_archive_policy", true); |
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39 if global_default_policy ~= "roster" then |
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40 global_default_policy = module:get_option_boolean("default_archive_policy", global_default_policy); |
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41 end |
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42 |
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43 local archive_store = module:get_option_string("archive_store", "archive2"); |
2000
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44 local archive = assert(module:open_store(archive_store, "archive")); |
2020
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45 |
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46 if archive.name == "null" or not archive.find then |
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47 if not archive.find then |
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48 module:log("debug", "Attempt to open archive storage returned a valid driver but it does not seem to implement the storage API"); |
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49 module:log("debug", "mod_%s does not support archiving", archive._provided_by or archive.name and "storage_"..archive.name.."(?)" or "<unknown>"); |
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50 else |
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51 module:log("debug", "Attempt to open archive storage returned null driver"); |
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52 end |
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53 module:log("debug", "See https://prosody.im/doc/storage and https://prosody.im/doc/archiving for more information"); |
2023
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54 module:log("info", "Using in-memory fallback archive driver"); |
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55 archive = module:require "fallback_archive"; |
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56 end |
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57 |
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58 local cleanup; |
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59 |
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60 -- Handle prefs. |
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61 local function handle_prefs(event) |
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62 local origin, stanza = event.origin, event.stanza; |
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63 local xmlns_mam = stanza.tags[1].attr.xmlns; |
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64 local user = origin.username; |
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65 if stanza.attr.type == "get" then |
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66 local prefs = prefs_to_stanza(get_prefs(user), xmlns_mam); |
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67 local reply = st.reply(stanza):add_child(prefs); |
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68 origin.send(reply); |
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69 else -- type == "set" |
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70 local new_prefs = stanza:get_child("prefs", xmlns_mam); |
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71 local prefs = prefs_from_stanza(new_prefs); |
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72 local ok, err = set_prefs(user, prefs); |
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73 if not ok then |
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74 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error storing preferences: "..tostring(err))); |
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75 else |
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76 origin.send(st.reply(stanza)); |
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77 end |
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78 end |
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79 return true; |
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80 end |
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81 |
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82 module:hook("iq/self/"..xmlns_mam0..":prefs", handle_prefs); |
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83 module:hook("iq/self/"..xmlns_mam1..":prefs", handle_prefs); |
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84 module:hook("iq/self/"..xmlns_mam2..":prefs", handle_prefs); |
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85 |
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86 local query_form = dataform { |
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87 { name = "FORM_TYPE"; type = "hidden"; value = xmlns_mam0; }; |
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88 { name = "with"; type = "jid-single"; }; |
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89 { name = "start"; type = "text-single" }; |
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90 { name = "end"; type = "text-single"; }; |
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91 }; |
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92 |
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93 -- Serve form |
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94 local function handle_get_form(event) |
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95 local origin, stanza = event.origin, event.stanza; |
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96 local xmlns_mam = stanza.tags[1].attr.xmlns; |
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97 query_form[1].value = xmlns_mam; |
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98 origin.send(st.reply(stanza):query(xmlns_mam):add_child(query_form:form())); |
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99 return true; |
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100 end |
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101 |
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102 module:hook("iq-get/self/"..xmlns_mam0..":query", handle_get_form); |
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103 module:hook("iq-get/self/"..xmlns_mam1..":query", handle_get_form); |
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104 module:hook("iq-get/self/"..xmlns_mam2..":query", handle_get_form); |
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105 |
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106 -- Handle archive queries |
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107 local function handle_mam_query(event) |
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108 local origin, stanza = event.origin, event.stanza; |
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109 local xmlns_mam = stanza.tags[1].attr.xmlns; |
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110 local query = stanza.tags[1]; |
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111 local qid = query.attr.queryid; |
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112 |
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113 if cleanup then cleanup[origin.username] = true; end |
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114 |
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115 -- Search query parameters |
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116 local qwith, qstart, qend; |
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117 local form = query:get_child("x", "jabber:x:data"); |
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118 if form then |
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119 local err; |
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120 query_form[1].value = xmlns_mam; |
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121 form, err = query_form:data(form); |
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122 if err then |
1698 | 123 origin.send(st.error_reply(stanza, "modify", "bad-request", select(2, next(err)))); |
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124 return true; |
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125 end |
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126 qwith, qstart, qend = form["with"], form["start"], form["end"]; |
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127 qwith = qwith and jid_bare(qwith); -- dataforms does jidprep |
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128 end |
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129 |
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130 if qstart or qend then -- Validate timestamps |
1698 | 131 local vstart, vend = (qstart and timestamp_parse(qstart)), (qend and timestamp_parse(qend)); |
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132 if (qstart and not vstart) or (qend and not vend) then |
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133 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp")) |
1698 | 134 return true; |
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135 end |
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136 qstart, qend = vstart, vend; |
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137 end |
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138 |
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139 module:log("debug", "Archive query, id %s with %s from %s until %s)", |
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140 tostring(qid), qwith or "anyone", qstart or "the dawn of time", qend or "now"); |
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141 |
1112
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142 -- RSM stuff |
1116
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143 local qset = rsm.get(query); |
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144 local qmax = m_min(qset and qset.max or default_max_items, max_max_items); |
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145 local reverse = qset and qset.before or false; |
1116
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146 local before, after = qset and qset.before, qset and qset.after; |
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147 if type(before) ~= "string" then before = nil; end |
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148 |
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149 -- Load all the data! |
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150 local data, err = archive:find(origin.username, { |
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151 start = qstart; ["end"] = qend; -- Time range |
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152 with = qwith; |
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153 limit = qmax + 1; |
1116
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154 before = before; after = after; |
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155 reverse = reverse; |
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156 total = true; |
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157 }); |
558
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|
158 |
1116
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159 if not data then |
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160 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); |
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161 return true; |
1116
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|
162 end |
2019
7198c129657c
mod_mam: Always convert 'total' to a number
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2018
diff
changeset
|
163 local total = tonumber(err); |
1116
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|
164 |
2506
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165 if xmlns_mam == xmlns_mam0 then |
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|
166 origin.send(st.reply(stanza)); |
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|
167 end |
1403
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1400
diff
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|
168 local msg_reply_attr = { to = stanza.attr.from, from = stanza.attr.to }; |
6b3db167374a
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|
169 |
1685
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|
170 local results = {}; |
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|
171 |
1116
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172 -- Wrap it in stuff and deliver |
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|
173 local first, last; |
1682
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|
174 local count = 0; |
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|
175 local complete = "true"; |
1116
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|
176 for id, item, when in data do |
1682
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|
177 count = count + 1; |
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|
178 if count > qmax then |
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|
179 complete = nil; |
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|
180 break; |
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|
181 end |
1684
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diff
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|
182 local fwd_st = st.message(msg_reply_attr) |
1116
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|
183 :tag("result", { xmlns = xmlns_mam, queryid = qid, id = id }) |
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|
184 :tag("forwarded", { xmlns = xmlns_forward }) |
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|
185 :tag("delay", { xmlns = xmlns_delay, stamp = timestamp(when) }):up(); |
2345a30dd8b4
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|
186 |
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|
187 if not is_stanza(item) then |
2345a30dd8b4
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diff
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|
188 item = st.deserialize(item); |
1112
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|
189 end |
1116
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|
190 item.attr.xmlns = "jabber:client"; |
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mod_mam: Update to use 'archive' storage type. Note: this breaks support with 0.9 and older.
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parents:
1114
diff
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|
191 fwd_st:add_child(item); |
701
cc5805f83583
mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
192 |
1325
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Backed out changeset 853a382c9bd6
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1324
diff
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|
193 if not first then first = id; end |
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Backed out changeset 853a382c9bd6
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1324
diff
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|
194 last = id; |
1116
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|
195 |
1685
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|
196 if reverse then |
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|
197 results[count] = fwd_st; |
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|
198 else |
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|
199 origin.send(fwd_st); |
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|
200 end |
1112
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diff
changeset
|
201 end |
2020
37b30f10fbba
mod_mam: Bit of spacing between blocks of code
Kim Alvefur <zash@zash.se>
parents:
2019
diff
changeset
|
202 |
1685
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|
203 if reverse then |
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|
204 for i = #results, 1, -1 do |
cd87a2eba8f2
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|
205 origin.send(results[i]); |
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diff
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|
206 end |
2021
5fb917b86838
mod_mam: Merge identical conditional blocks
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parents:
2020
diff
changeset
|
207 first, last = last, first; |
1685
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|
208 end |
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|
209 |
1112
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|
210 -- That's all folks! |
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changeset
|
211 module:log("debug", "Archive query %s completed", tostring(qid)); |
705
c9d0ba39a33b
mod_mam: Move RSM pointer to last message into a MAM-namespaced child
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parents:
702
diff
changeset
|
212 |
2506
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|
213 local fin; |
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|
214 if xmlns_mam == xmlns_mam0 then |
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|
215 fin = st.message(msg_reply_attr); |
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|
216 else |
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217 fin = st.reply(stanza); |
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218 end |
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219 do |
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220 fin:tag("fin", { xmlns = xmlns_mam, queryid = qid, complete = complete }) |
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221 :add_child(rsm.generate { |
2506
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222 first = first, last = last, count = total }) |
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223 end |
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224 origin.send(fin); |
1681
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225 return true; |
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226 end |
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227 module:hook("iq-set/self/"..xmlns_mam0..":query", handle_mam_query); |
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228 module:hook("iq-set/self/"..xmlns_mam1..":query", handle_mam_query); |
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229 module:hook("iq-set/self/"..xmlns_mam2..":query", handle_mam_query); |
523
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230 |
558
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231 local function has_in_roster(user, who) |
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232 local roster = rm_load_roster(user, host); |
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233 module:log("debug", "%s has %s in roster? %s", user, who, roster[who] and "yes" or "no"); |
798 | 234 return roster[who]; |
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235 end |
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236 |
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237 local function shall_store(user, who) |
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238 -- TODO Cache this? |
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239 if not um.user_exists(user, host) then |
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240 return false; |
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241 end |
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242 local prefs = get_prefs(user); |
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243 local rule = prefs[who]; |
1698 | 244 module:log("debug", "%s's rule for %s is %s", user, who, tostring(rule)); |
558
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245 if rule ~= nil then |
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246 return rule; |
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247 end |
1788 | 248 -- Below could be done by a metatable |
249 local default = prefs[false]; | |
250 module:log("debug", "%s's default rule is %s", user, tostring(default)); | |
251 if default == nil then | |
252 default = global_default_policy; | |
253 module:log("debug", "Using global default rule, %s", tostring(default)); | |
254 end | |
255 if default == "roster" then | |
256 return has_in_roster(user, who); | |
257 end | |
258 return default; | |
558
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259 end |
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260 |
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261 -- Handle messages |
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262 local function message_handler(event, c2s) |
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263 local origin, stanza = event.origin, event.stanza; |
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264 local log = c2s and origin.log or module._log; |
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265 local orig_type = stanza.attr.type or "normal"; |
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266 local orig_from = stanza.attr.from; |
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267 local orig_to = stanza.attr.to or orig_from; |
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268 -- Stanza without 'to' are treated as if it was to their own bare jid |
523
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269 |
2516
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270 -- Whos storage do we put it in? |
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271 local store_user = c2s and origin.username or jid_split(orig_to); |
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272 -- And who are they chatting with? |
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273 local with = jid_bare(c2s and orig_to or orig_from); |
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274 |
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275 -- Filter out <stanza-id> that claim to be from us |
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276 stanza:maptags(function (tag) |
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277 if tag.name == "stanza-id" and tag.attr.xmlns == xmlns_st_id then |
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278 local by_user, by_host, res = jid_prepped_split(tag.attr.by); |
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279 if not res and by_host == module.host and by_user == store_user then |
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280 return nil; |
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281 end |
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282 end |
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283 return tag; |
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284 end); |
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285 |
1790
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286 -- We store chat messages or normal messages that have a body |
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287 if not(orig_type == "chat" or (orig_type == "normal" and stanza:get_child("body")) ) then |
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288 log("debug", "Not archiving stanza: %s (type)", stanza:top_tag()); |
1790
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289 return; |
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290 end |
2512 | 291 |
1150
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292 -- or if hints suggest we shouldn't |
2511
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293 if not stanza:get_child("store", "urn:xmpp:hints") then -- No hint telling us we should store |
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294 if stanza:get_child("no-permanent-store", "urn:xmpp:hints") |
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295 or stanza:get_child("no-store", "urn:xmpp:hints") then -- Hint telling us we should NOT store |
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296 log("debug", "Not archiving stanza: %s (hint)", stanza:top_tag()); |
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297 return; |
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298 end |
523
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299 end |
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300 |
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301 -- Check with the users preferences |
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302 if shall_store(store_user, with) then |
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303 log("debug", "Archiving stanza: %s", stanza:top_tag()); |
558
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304 |
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305 -- And stash it |
2515
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306 local ok = archive:append(store_user, nil, stanza, time_now(), with); |
1746
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307 if ok then |
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|
308 local id = ok; |
2516
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309 stanza:tag("stanza-id", { xmlns = xmlns_st_id, by = store_user.."@"..host, id = id }):up(); |
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310 if cleanup then cleanup[store_user] = true; end |
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|
311 module:fire_event("archive-message-added", { origin = origin, stanza = stanza, for_user = store_user, id = id }); |
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|
312 end |
558
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|
313 else |
2270
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|
314 log("debug", "Not archiving stanza: %s (prefs)", stanza:top_tag()); |
558
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|
315 end |
523
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316 end |
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317 |
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318 local function c2s_message_handler(event) |
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319 return message_handler(event, true); |
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320 end |
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321 |
2516
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322 local function strip_stanza_id(event) |
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323 local strip_by = jid_bare(event.origin.full_jid); |
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324 event.stanza:maptags(function(tag) |
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325 if not ( tag.attr.xmlns == xmlns_st_id and tag.attr.by == strip_by ) then |
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326 return tag; |
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327 end |
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328 end); |
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329 end |
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330 |
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|
331 module:hook("pre-message/bare", strip_stanza_id, 0.01); |
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|
332 module:hook("pre-message/full", strip_stanza_id, 0.01); |
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|
333 |
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|
334 local cleanup_after = module:get_option_string("archive_expires_after", "1w"); |
2022
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|
335 local cleanup_interval = module:get_option_number("archive_cleanup_interval", 4 * 60 * 60); |
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|
336 if cleanup_after ~= "never" then |
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337 local day = 86400; |
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338 local multipliers = { d = day, w = day * 7, m = 31 * day, y = 365.2425 * day }; |
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339 local n, m = cleanup_after:lower():match("(%d+)%s*([dwmy]?)"); |
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340 if not n then |
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341 module:log("error", "Could not parse archive_expires_after string %q", cleanup_after); |
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342 return false; |
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343 end |
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344 |
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345 cleanup_after = tonumber(n) * ( multipliers[m] or 1 ); |
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346 |
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347 module:log("debug", "archive_expires_after = %d -- in seconds", cleanup_after); |
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348 |
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349 if not archive.delete then |
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350 module:log("error", "archive_expires_after set but mod_%s does not support deleting", archive._provided_by); |
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351 return false; |
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352 end |
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353 |
2513 | 354 -- Set of known users to do message expiry for |
355 -- Populated either below or when new messages are added | |
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356 cleanup = {}; |
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357 |
2513 | 358 -- Iterating over users is not supported by all authentication modules |
359 -- Catch and ignore error if not supported | |
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360 pcall(function () |
2513 | 361 -- If this works, then we schedule cleanup for all known users on startup |
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362 for user in um.users(module.host) do |
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363 cleanup[user] = true; |
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364 end |
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365 end); |
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366 |
2513 | 367 -- At odd intervals, delete old messages for one user |
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368 module:add_timer(math.random(10, 60), function() |
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369 local user = next(cleanup); |
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370 if user then |
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371 module:log("debug", "Removing old messages for user %q", user); |
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372 local ok, err = archive:delete(user, { ["end"] = os.time() - cleanup_after; }) |
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373 if not ok then |
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374 module:log("warn", "Could not expire archives for user %s: %s", user, err); |
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375 else |
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376 -- :affected() is a recent addition for eg SQLite3 in LuaDBI |
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377 pcall(function(stmt) |
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378 module:log("debug", "Removed %d messages", stmt:affected()); |
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379 end, err); |
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380 end |
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381 cleanup[user] = nil; |
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382 end |
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383 return math.random(cleanup_interval, cleanup_interval * 2); |
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384 end); |
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385 end |
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386 |
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387 -- Stanzas sent by local clients |
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388 module:hook("pre-message/bare", c2s_message_handler, 2); |
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389 module:hook("pre-message/full", c2s_message_handler, 2); |
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390 -- Stanszas to local clients |
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391 module:hook("message/bare", message_handler, 2); |
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392 module:hook("message/full", message_handler, 2); |
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393 |
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394 module:add_feature(xmlns_mam0); -- COMPAT with XEP-0313 v 0.1 |
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395 |
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396 module:hook("account-disco-info", function(event) |
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397 (event.reply or event.stanza):tag("feature", {var=xmlns_mam0}):up(); |
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398 (event.reply or event.stanza):tag("feature", {var=xmlns_mam1}):up(); |
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399 (event.reply or event.stanza):tag("feature", {var=xmlns_mam2}):up(); |
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400 (event.reply or event.stanza):tag("feature", {var=xmlns_st_id}):up(); |
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401 end); |
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402 |