Mercurial > prosody-modules
annotate mod_mam/mod_mam.lua @ 2697:d18a91c030df
mod_server_contact_info: Bump log message to info level
author | Kim Alvefur <zash@zash.se> |
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date | Wed, 19 Apr 2017 06:38:08 +0200 (2017-04-19) |
parents | 2d5e0e2938d1 |
children | ff1f7e61517f |
rev | line source |
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635 | 1 -- XEP-0313: Message Archive Management for Prosody |
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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; |
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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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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"); |
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44 local archive = module:open_store(archive_store, "archive"); |
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45 |
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46 if archive.name == "null" or not archive.find then |
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47 -- luacheck: ignore 631 |
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48 if not archive.find then |
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49 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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50 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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51 else |
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52 module:log("debug", "Attempt to open archive storage returned null driver"); |
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53 end |
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54 module:log("debug", "See https://prosody.im/doc/storage and https://prosody.im/doc/archiving for more information"); |
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55 module:log("info", "Using in-memory fallback archive driver"); |
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56 archive = module:require "fallback_archive"; |
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57 end |
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58 |
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59 local cleanup; |
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60 |
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61 -- Handle prefs. |
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62 local function handle_prefs(event) |
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63 local origin, stanza = event.origin, event.stanza; |
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64 local xmlns_mam = stanza.tags[1].attr.xmlns; |
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65 local user = origin.username; |
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66 if stanza.attr.type == "get" then |
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67 local prefs = prefs_to_stanza(get_prefs(user), xmlns_mam); |
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68 local reply = st.reply(stanza):add_child(prefs); |
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69 origin.send(reply); |
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70 else -- type == "set" |
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71 local new_prefs = stanza:get_child("prefs", xmlns_mam); |
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72 local prefs = prefs_from_stanza(new_prefs); |
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73 local ok, err = set_prefs(user, prefs); |
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74 if not ok then |
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75 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error storing preferences: "..tostring(err))); |
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76 else |
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77 origin.send(st.reply(stanza)); |
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78 end |
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79 end |
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80 return true; |
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81 end |
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82 |
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83 module:hook("iq/self/"..xmlns_mam0..":prefs", handle_prefs); |
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84 module:hook("iq/self/"..xmlns_mam1..":prefs", handle_prefs); |
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85 module:hook("iq/self/"..xmlns_mam2..":prefs", handle_prefs); |
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86 |
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87 local query_form = dataform { |
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88 { name = "FORM_TYPE"; type = "hidden"; value = xmlns_mam0; }; |
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89 { name = "with"; type = "jid-single"; }; |
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90 { name = "start"; type = "text-single" }; |
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91 { name = "end"; type = "text-single"; }; |
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92 }; |
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93 |
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94 -- Serve form |
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95 local function handle_get_form(event) |
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96 local origin, stanza = event.origin, event.stanza; |
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97 local xmlns_mam = stanza.tags[1].attr.xmlns; |
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98 query_form[1].value = xmlns_mam; |
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99 origin.send(st.reply(stanza):query(xmlns_mam):add_child(query_form:form())); |
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100 return true; |
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101 end |
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102 |
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103 module:hook("iq-get/self/"..xmlns_mam0..":query", handle_get_form); |
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104 module:hook("iq-get/self/"..xmlns_mam1..":query", handle_get_form); |
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105 module:hook("iq-get/self/"..xmlns_mam2..":query", handle_get_form); |
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106 |
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107 -- Handle archive queries |
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108 local function handle_mam_query(event) |
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109 local origin, stanza = event.origin, event.stanza; |
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110 local xmlns_mam = stanza.tags[1].attr.xmlns; |
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111 local query = stanza.tags[1]; |
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112 local qid = query.attr.queryid; |
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113 |
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114 if cleanup then cleanup[origin.username] = true; end |
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115 |
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116 -- Search query parameters |
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117 local qwith, qstart, qend; |
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118 local form = query:get_child("x", "jabber:x:data"); |
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119 if form then |
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120 local err; |
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121 query_form[1].value = xmlns_mam; |
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122 form, err = query_form:data(form); |
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123 if err then |
1698 | 124 origin.send(st.error_reply(stanza, "modify", "bad-request", select(2, next(err)))); |
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125 return true; |
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126 end |
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127 qwith, qstart, qend = form["with"], form["start"], form["end"]; |
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128 qwith = qwith and jid_bare(qwith); -- dataforms does jidprep |
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129 end |
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130 |
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131 if qstart or qend then -- Validate timestamps |
1698 | 132 local vstart, vend = (qstart and timestamp_parse(qstart)), (qend and timestamp_parse(qend)); |
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133 if (qstart and not vstart) or (qend and not vend) then |
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134 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp")) |
1698 | 135 return true; |
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136 end |
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137 qstart, qend = vstart, vend; |
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138 end |
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139 |
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140 module:log("debug", "Archive query, id %s with %s from %s until %s)", |
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141 tostring(qid), qwith or "anyone", qstart or "the dawn of time", qend or "now"); |
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142 |
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143 -- RSM stuff |
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144 local qset = rsm.get(query); |
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145 local qmax = m_min(qset and qset.max or default_max_items, max_max_items); |
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146 local reverse = qset and qset.before or false; |
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147 local before, after = qset and qset.before, qset and qset.after; |
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148 if type(before) ~= "string" then before = nil; end |
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149 |
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150 -- Load all the data! |
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151 local data, err = archive:find(origin.username, { |
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152 start = qstart; ["end"] = qend; -- Time range |
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153 with = qwith; |
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154 limit = qmax + 1; |
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155 before = before; after = after; |
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156 reverse = reverse; |
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157 total = true; |
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158 }); |
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159 |
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160 if not data then |
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161 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); |
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162 return true; |
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163 end |
2019
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164 local total = tonumber(err); |
1116
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165 |
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166 if xmlns_mam == xmlns_mam0 then |
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167 origin.send(st.reply(stanza)); |
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168 end |
1403
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169 local msg_reply_attr = { to = stanza.attr.from, from = stanza.attr.to }; |
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170 |
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171 local results = {}; |
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172 |
1116
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173 -- Wrap it in stuff and deliver |
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174 local first, last; |
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175 local count = 0; |
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176 local complete = "true"; |
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177 for id, item, when in data do |
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178 count = count + 1; |
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179 if count > qmax then |
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180 complete = nil; |
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181 break; |
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|
182 end |
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183 local fwd_st = st.message(msg_reply_attr) |
1116
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184 :tag("result", { xmlns = xmlns_mam, queryid = qid, id = id }) |
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185 :tag("forwarded", { xmlns = xmlns_forward }) |
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186 :tag("delay", { xmlns = xmlns_delay, stamp = timestamp(when) }):up(); |
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187 |
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|
188 if not is_stanza(item) then |
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189 item = st.deserialize(item); |
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190 end |
1116
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191 item.attr.xmlns = "jabber:client"; |
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|
192 fwd_st:add_child(item); |
701
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diff
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|
193 |
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194 if not first then first = id; end |
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195 last = id; |
1116
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196 |
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197 if reverse then |
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198 results[count] = fwd_st; |
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199 else |
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200 origin.send(fwd_st); |
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201 end |
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|
202 end |
2020
37b30f10fbba
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2019
diff
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|
203 |
1685
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204 if reverse then |
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|
205 for i = #results, 1, -1 do |
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|
206 origin.send(results[i]); |
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|
207 end |
2021
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diff
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|
208 first, last = last, first; |
1685
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209 end |
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210 |
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|
211 -- That's all folks! |
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|
212 module:log("debug", "Archive query %s completed", tostring(qid)); |
705
c9d0ba39a33b
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diff
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|
213 |
2506
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214 local fin; |
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|
215 if xmlns_mam == xmlns_mam0 then |
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|
216 fin = st.message(msg_reply_attr); |
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217 else |
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218 fin = st.reply(stanza); |
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219 end |
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220 do |
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221 fin:tag("fin", { xmlns = xmlns_mam, queryid = qid, complete = complete }) |
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222 :add_child(rsm.generate { |
2506
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223 first = first, last = last, count = total }) |
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224 end |
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225 origin.send(fin); |
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226 return true; |
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227 end |
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228 module:hook("iq-set/self/"..xmlns_mam0..":query", handle_mam_query); |
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229 module:hook("iq-set/self/"..xmlns_mam1..":query", handle_mam_query); |
2516
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230 module:hook("iq-set/self/"..xmlns_mam2..":query", handle_mam_query); |
523
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231 |
558
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232 local function has_in_roster(user, who) |
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233 local roster = rm_load_roster(user, host); |
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234 module:log("debug", "%s has %s in roster? %s", user, who, roster[who] and "yes" or "no"); |
798 | 235 return roster[who]; |
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236 end |
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237 |
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238 local function shall_store(user, who) |
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239 -- TODO Cache this? |
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240 if not um.user_exists(user, host) then |
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241 return false; |
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242 end |
558
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243 local prefs = get_prefs(user); |
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244 local rule = prefs[who]; |
1698 | 245 module:log("debug", "%s's rule for %s is %s", user, who, tostring(rule)); |
558
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246 if rule ~= nil then |
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247 return rule; |
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248 end |
1788 | 249 -- Below could be done by a metatable |
250 local default = prefs[false]; | |
251 module:log("debug", "%s's default rule is %s", user, tostring(default)); | |
252 if default == nil then | |
253 default = global_default_policy; | |
254 module:log("debug", "Using global default rule, %s", tostring(default)); | |
255 end | |
256 if default == "roster" then | |
257 return has_in_roster(user, who); | |
258 end | |
259 return default; | |
558
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260 end |
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261 |
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262 -- Handle messages |
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263 local function message_handler(event, c2s) |
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264 local origin, stanza = event.origin, event.stanza; |
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265 local log = c2s and origin.log or module._log; |
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266 local orig_type = stanza.attr.type or "normal"; |
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267 local orig_from = stanza.attr.from; |
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268 local orig_to = stanza.attr.to or orig_from; |
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269 -- Stanza without 'to' are treated as if it was to their own bare jid |
523
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270 |
2516
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271 -- Whos storage do we put it in? |
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272 local store_user = c2s and origin.username or jid_split(orig_to); |
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273 -- And who are they chatting with? |
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274 local with = jid_bare(c2s and orig_to or orig_from); |
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275 |
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276 -- Filter out <stanza-id> that claim to be from us |
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277 stanza:maptags(function (tag) |
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278 if tag.name == "stanza-id" and tag.attr.xmlns == xmlns_st_id then |
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279 local by_user, by_host, res = jid_prepped_split(tag.attr.by); |
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280 if not res and by_host == module.host and by_user == store_user then |
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281 return nil; |
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282 end |
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283 end |
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284 return tag; |
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285 end); |
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286 |
1790
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287 -- We store chat messages or normal messages that have a body |
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288 if not(orig_type == "chat" or (orig_type == "normal" and stanza:get_child("body")) ) then |
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289 log("debug", "Not archiving stanza: %s (type)", stanza:top_tag()); |
1790
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290 return; |
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291 end |
2512 | 292 |
1150
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293 -- or if hints suggest we shouldn't |
2511
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294 if not stanza:get_child("store", "urn:xmpp:hints") then -- No hint telling us we should store |
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295 if stanza:get_child("no-permanent-store", "urn:xmpp:hints") |
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296 or stanza:get_child("no-store", "urn:xmpp:hints") then -- Hint telling us we should NOT store |
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297 log("debug", "Not archiving stanza: %s (hint)", stanza:top_tag()); |
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298 return; |
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299 end |
523
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300 end |
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301 |
1149
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302 -- Check with the users preferences |
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303 if shall_store(store_user, with) then |
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304 log("debug", "Archiving stanza: %s", stanza:top_tag()); |
558
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305 |
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306 -- And stash it |
2515
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307 local ok = archive:append(store_user, nil, stanza, time_now(), with); |
1746
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308 if ok then |
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309 local id = ok; |
2516
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310 stanza:tag("stanza-id", { xmlns = xmlns_st_id, by = store_user.."@"..host, id = id }):up(); |
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311 if cleanup then cleanup[store_user] = true; end |
1746
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312 module:fire_event("archive-message-added", { origin = origin, stanza = stanza, for_user = store_user, id = id }); |
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|
313 end |
558
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|
314 else |
2270
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|
315 log("debug", "Not archiving stanza: %s (prefs)", stanza:top_tag()); |
558
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|
316 end |
523
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317 end |
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318 |
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319 local function c2s_message_handler(event) |
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320 return message_handler(event, true); |
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321 end |
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322 |
2516
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323 local function strip_stanza_id(event) |
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324 local strip_by = jid_bare(event.origin.full_jid); |
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325 event.stanza:maptags(function(tag) |
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326 if not ( tag.attr.xmlns == xmlns_st_id and tag.attr.by == strip_by ) then |
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327 return tag; |
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328 end |
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329 end); |
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330 end |
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331 |
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|
332 module:hook("pre-message/bare", strip_stanza_id, 0.01); |
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|
333 module:hook("pre-message/full", strip_stanza_id, 0.01); |
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|
334 |
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|
335 local cleanup_after = module:get_option_string("archive_expires_after", "1w"); |
2022
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|
336 local cleanup_interval = module:get_option_number("archive_cleanup_interval", 4 * 60 * 60); |
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337 if cleanup_after ~= "never" then |
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338 local day = 86400; |
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339 local multipliers = { d = day, w = day * 7, m = 31 * day, y = 365.2425 * day }; |
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340 local n, m = cleanup_after:lower():match("(%d+)%s*([dwmy]?)"); |
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341 if not n then |
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342 module:log("error", "Could not parse archive_expires_after string %q", cleanup_after); |
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343 return false; |
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344 end |
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345 |
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346 cleanup_after = tonumber(n) * ( multipliers[m] or 1 ); |
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347 |
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348 module:log("debug", "archive_expires_after = %d -- in seconds", cleanup_after); |
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349 |
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350 if not archive.delete then |
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351 module:log("error", "archive_expires_after set but mod_%s does not support deleting", archive._provided_by); |
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352 return false; |
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353 end |
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354 |
2513 | 355 -- Set of known users to do message expiry for |
356 -- Populated either below or when new messages are added | |
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357 cleanup = {}; |
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358 |
2513 | 359 -- Iterating over users is not supported by all authentication modules |
360 -- Catch and ignore error if not supported | |
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361 pcall(function () |
2513 | 362 -- If this works, then we schedule cleanup for all known users on startup |
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363 for user in um.users(module.host) do |
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364 cleanup[user] = true; |
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365 end |
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366 end); |
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367 |
2513 | 368 -- At odd intervals, delete old messages for one user |
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369 module:add_timer(math.random(10, 60), function() |
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370 local user = next(cleanup); |
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371 if user then |
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372 module:log("debug", "Removing old messages for user %q", user); |
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373 local ok, err = archive:delete(user, { ["end"] = os.time() - cleanup_after; }) |
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374 if not ok then |
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375 module:log("warn", "Could not expire archives for user %s: %s", user, err); |
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376 else |
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377 -- :affected() is a recent addition for eg SQLite3 in LuaDBI |
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378 pcall(function(stmt) |
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379 module:log("debug", "Removed %d messages", stmt:affected()); |
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380 end, err); |
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381 end |
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382 cleanup[user] = nil; |
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383 end |
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384 return math.random(cleanup_interval, cleanup_interval * 2); |
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385 end); |
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386 end |
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387 |
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388 -- Stanzas sent by local clients |
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389 module:hook("pre-message/bare", c2s_message_handler, 2); |
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390 module:hook("pre-message/full", c2s_message_handler, 2); |
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391 -- Stanszas to local clients |
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392 module:hook("message/bare", message_handler, 2); |
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393 module:hook("message/full", message_handler, 2); |
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394 |
2506
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395 module:add_feature(xmlns_mam0); -- COMPAT with XEP-0313 v 0.1 |
558
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396 |
1678
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397 module:hook("account-disco-info", function(event) |
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398 (event.reply or event.stanza):tag("feature", {var=xmlns_mam0}):up(); |
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399 (event.reply or event.stanza):tag("feature", {var=xmlns_mam1}):up(); |
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400 (event.reply or event.stanza):tag("feature", {var=xmlns_mam2}):up(); |
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401 (event.reply or event.stanza):tag("feature", {var=xmlns_st_id}):up(); |
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402 end); |
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403 |