Mercurial > prosody-modules
annotate mod_mam_muc/mod_mam_muc.lua @ 1542:ccb9dc624ebd
mod_mam_muc: Split logic for determining if logging is enabled into a function
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Thu, 30 Oct 2014 12:39:57 +0100 |
| parents | ef032840bc92 |
| children | 57fb9ce21f9c |
| rev | line source |
|---|---|
| 1313 | 1 -- XEP-0313: Message Archive Management for Prosody MUC |
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2 -- Copyright (C) 2011-2014 Kim Alvefur |
| 820 | 3 -- |
| 4 -- This file is MIT/X11 licensed. | |
| 5 | |
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6 local xmlns_mam = "urn:xmpp:mam:0"; |
| 820 | 7 local xmlns_delay = "urn:xmpp:delay"; |
| 8 local xmlns_forward = "urn:xmpp:forward:0"; | |
| 1313 | 9 local muc_form_enable_logging = "muc#roomconfig_enablelogging" |
| 820 | 10 |
| 11 local st = require "util.stanza"; | |
| 12 local rsm = module:require "mod_mam/rsm"; | |
| 13 local jid_bare = require "util.jid".bare; | |
| 14 local jid_split = require "util.jid".split; | |
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15 local dataform = require "util.dataforms".new; |
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16 |
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17 local mod_muc = module:depends"muc"; |
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18 local room_mt = mod_muc.room_mt; |
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19 local rooms = mod_muc.rooms; |
| 820 | 20 |
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21 local getmetatable = getmetatable; |
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22 local function is_stanza(x) |
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23 return getmetatable(x) == st.stanza_mt; |
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24 end |
| 820 | 25 |
| 26 local tostring = tostring; | |
| 27 local time_now = os.time; | |
| 28 local m_min = math.min; | |
| 29 local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse; | |
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30 local max_history_length = module:get_option_number("max_history_messages", 1000); |
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31 local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", max_history_length); |
| 820 | 32 |
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33 local log_all_rooms = module:get_option_boolean("muc_log_all_rooms", false); |
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34 local log_by_default = module:get_option_boolean("muc_log_by_default", true); |
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35 |
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36 local archive_store = "archive2"; |
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37 local archive = module:open_store(archive_store, "archive"); |
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38 if not archive or archive.name == "null" then |
| 1541 | 39 module:log("error", "Could not open archive storage"); |
| 40 return | |
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41 elseif not archive.find then |
| 1541 | 42 module:log("error", "mod_%s does not support archiving, switch to mod_storage_sql2", archive._provided_by); |
| 43 return | |
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44 end |
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45 |
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46 local function logging_enabled(room) |
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47 if log_all_rooms then |
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48 return true; |
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49 end |
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50 local enabled = room._data.logging; |
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51 if enabled == nil then |
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52 return log_by_default; |
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53 end |
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54 return enabled; |
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55 end |
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56 |
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57 local send_history, save_to_history; |
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58 |
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59 -- Override history methods for all rooms. |
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60 module:hook("muc-room-created", function (event) |
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61 local room = event.room; |
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62 if logging_enabled(room) then |
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63 room.send_history = send_history; |
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64 room.save_to_history = save_to_history; |
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65 end |
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66 end); |
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67 |
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68 function module.load() |
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69 for _, room in pairs(rooms) do |
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70 if logging_enabled(room) then |
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71 room.send_history = send_history; |
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72 room.save_to_history = save_to_history; |
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73 end |
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74 end |
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75 end |
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76 function module.unload() |
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77 for _, room in pairs(rooms) do |
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78 if room.send_history == send_history then |
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79 room.send_history = nil; |
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80 room.save_to_history = nil; |
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81 end |
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82 end |
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83 end |
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84 |
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85 if not log_all_rooms then |
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86 module:hook("muc-config-form", function(event) |
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87 local room, form = event.room, event.form; |
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88 table.insert(form, |
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89 { |
| 1313 | 90 name = muc_form_enable_logging, |
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91 type = "boolean", |
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92 label = "Enable Logging?", |
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93 value = logging_enabled(room), |
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94 } |
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95 ); |
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96 end); |
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97 |
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98 module:hook("muc-config-submitted", function(event) |
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99 local room, fields, changed = event.room, event.fields, event.changed; |
| 1313 | 100 local new = fields[muc_form_enable_logging]; |
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101 if new ~= room._data.logging then |
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102 room._data.logging = new; |
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103 if type(changed) == "table" then |
| 1313 | 104 changed[muc_form_enable_logging] = true; |
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105 else |
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106 event.changed = true; |
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107 end |
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108 if new then |
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109 room.send_history = send_history; |
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110 room.save_to_history = save_to_history; |
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111 else |
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112 room.send_history = nil; |
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113 room.save_to_history = nil; |
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114 end |
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115 end |
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116 end); |
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117 end |
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118 |
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119 local query_form = dataform { |
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120 { name = "FORM_TYPE"; type = "hidden"; value = xmlns_mam; }; |
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121 { name = "with"; type = "jid-single"; }; |
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122 { name = "start"; type = "text-single" }; |
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123 { name = "end"; type = "text-single"; }; |
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124 }; |
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125 |
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126 -- Serve form |
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127 module:hook("iq-get/self/"..xmlns_mam..":query", function(event) |
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128 local origin, stanza = event.origin, event.stanza; |
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129 return origin.send(st.reply(stanza):add_child(query_form:form())); |
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130 end); |
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131 |
| 820 | 132 -- Handle archive queries |
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133 module:hook("iq-set/bare/"..xmlns_mam..":query", function(event) |
| 820 | 134 local origin, stanza = event.origin, event.stanza; |
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135 local room = stanza.attr.to; |
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136 local room_node = jid_split(room); |
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137 local orig_from = stanza.attr.from; |
| 820 | 138 local query = stanza.tags[1]; |
| 139 | |
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140 local room_obj = rooms[room]; |
| 820 | 141 if not room_obj then |
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142 return origin.send(st.error_reply(stanza, "cancel", "item-not-found")) |
| 820 | 143 end |
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144 local from = jid_bare(orig_from); |
| 820 | 145 |
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146 -- Banned or not a member of a members-only room? |
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147 local from_affiliation = room_obj:get_affiliation(from); |
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148 if from_affiliation == "outcast" -- banned |
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149 or room_obj:get_members_only() and not from_affiliation then -- members-only, not a member |
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150 return origin.send(st.error_reply(stanza, "auth", "forbidden")) |
| 820 | 151 end |
| 152 | |
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153 local qid = query.attr.queryid; |
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154 |
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155 -- Search query parameters |
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156 local qwith, qstart, qend; |
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157 local form = query:get_child("x", "jabber:x:data"); |
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158 if form then |
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159 local err; |
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160 form, err = query_form:data(form); |
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161 if err then |
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162 return origin.send(st.error_reply(stanza, "modify", "bad-request", select(2, next(err)))) |
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163 end |
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164 qwith, qstart, qend = form["with"], form["start"], form["end"]; |
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165 qwith = qwith and jid_bare(qwith); -- dataforms does jidprep |
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166 end |
| 820 | 167 |
|
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168 if qstart or qend then -- Validate timestamps |
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169 local vstart, vend = (qstart and timestamp_parse(qstart)), (qend and timestamp_parse(qend)) |
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170 if (qstart and not vstart) or (qend and not vend) then |
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171 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp")) |
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172 return true |
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173 end |
|
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174 qstart, qend = vstart, vend; |
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175 end |
| 820 | 176 |
|
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177 -- RSM stuff |
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178 local qset = rsm.get(query); |
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179 local qmax = m_min(qset and qset.max or default_max_items, max_max_items); |
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180 local reverse = qset and qset.before or false; |
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181 |
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182 local before, after = qset and qset.before, qset and qset.after; |
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183 if type(before) ~= "string" then before = nil; end |
| 820 | 184 |
|
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185 -- Load all the data! |
|
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186 local data, err = archive:find(room_node, { |
|
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187 start = qstart; ["end"] = qend; -- Time range |
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188 limit = qmax; |
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189 before = before; after = after; |
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190 reverse = reverse; |
|
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191 total = true; |
|
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192 }); |
|
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|
193 |
|
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194 if not data then |
|
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195 return origin.send(st.error_reply(stanza, "cancel", "internal-server-error")); |
|
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196 end |
|
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197 local count = err; |
|
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|
198 |
|
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|
199 origin.send(st.reply(stanza)) |
|
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200 local msg_reply_attr = { to = stanza.attr.from, from = stanza.attr.to }; |
|
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|
201 |
|
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202 -- Wrap it in stuff and deliver |
|
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|
203 local fwd_st, first, last; |
|
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|
204 for id, item, when in data do |
|
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|
205 fwd_st = st.message(msg_reply_attr) |
|
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206 :tag("result", { xmlns = xmlns_mam, queryid = qid, id = id }) |
|
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|
207 :tag("forwarded", { xmlns = xmlns_forward }) |
|
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|
208 :tag("delay", { xmlns = xmlns_delay, stamp = timestamp(when) }):up(); |
|
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209 |
|
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210 if not is_stanza(item) then |
|
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|
211 item = st.deserialize(item); |
|
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diff
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|
212 end |
|
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213 item.attr.xmlns = "jabber:client"; |
|
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214 fwd_st:add_child(item); |
| 820 | 215 |
|
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216 if not first then first = id; end |
|
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217 last = id; |
|
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218 |
|
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219 origin.send(fwd_st); |
|
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diff
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|
220 end |
|
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221 -- That's all folks! |
|
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|
222 module:log("debug", "Archive query %s completed", tostring(qid)); |
| 820 | 223 |
|
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224 if reverse then first, last = last, first; end |
|
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|
225 return origin.send(st.message(msg_reply_attr) |
|
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226 :tag("fin", { xmlns = xmlns_mam, queryid = qid }) |
|
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227 :add_child(rsm.generate { |
|
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|
228 first = first, last = last, count = count })); |
| 820 | 229 end); |
| 230 | |
|
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|
231 function send_history(self, to, stanza) |
|
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232 local maxchars, maxstanzas, seconds, since; |
|
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233 local history_tag = stanza:find("{http://jabber.org/protocol/muc}x/history") |
|
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|
234 if history_tag then |
|
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235 module:log("debug", tostring(history_tag)); |
|
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|
236 local history_attr = history_tag.attr; |
|
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237 maxchars = tonumber(history_attr.maxchars); |
|
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238 maxstanzas = tonumber(history_attr.maxstanzas); |
|
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239 seconds = tonumber(history_attr.seconds); |
|
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240 since = history_attr.since; |
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241 if since then |
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242 since = timestamp_parse(since); |
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243 end |
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244 if seconds then |
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245 since = math.max(os.time() - seconds, since or 0); |
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246 end |
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247 end |
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248 |
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249 -- Load all the data! |
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250 local data, err = archive:find(jid_split(self.jid), { |
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251 limit = m_min(maxstanzas or 20, max_history_length); |
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252 start = since; |
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253 reverse = true; |
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254 with = "message<groupchat"; |
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255 }); |
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256 |
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257 if not data then |
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258 module:log("error", "Could not fetch history: %s", tostring(err)); |
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259 return |
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260 end |
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261 |
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262 local to_send = {}; |
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263 local charcount = 0; |
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264 local chars; |
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265 for id, item, when in data do |
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266 item.attr.to = to; |
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267 item:tag("delay", { xmlns = "urn:xmpp:delay", from = self.jid, stamp = timestamp(when) }):up(); -- XEP-0203 |
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268 if maxchars then |
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269 chars = #tostring(item); |
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270 if chars + charcount > maxchars then break end |
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271 charcount = charcount + chars; |
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272 end |
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273 to_send[1+#to_send] = item; |
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274 end |
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275 for i = #to_send,1,-1 do |
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276 self:_route_stanza(to_send[i]); |
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277 end |
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278 end |
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279 |
| 820 | 280 -- Handle messages |
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281 function save_to_history(self, stanza) |
| 820 | 282 local orig_to = stanza.attr.to; |
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283 local room = jid_split(self.jid); |
| 820 | 284 |
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285 -- Policy check |
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286 if not logging_enabled(self) then return end -- Don't log |
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287 |
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288 module:log("debug", "We're logging this") |
| 820 | 289 -- And stash it |
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290 local with = stanza.name |
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291 if stanza.attr.type then |
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292 with = with .. "<" .. stanza.attr.type |
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293 end |
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294 archive:append(room, nil, time_now(), with, stanza); |
| 820 | 295 end |
| 296 | |
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297 module:hook("muc-room-destroyed", function(event) |
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298 local username = jid_split(event.room.jid); |
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299 archive:delete(username); |
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300 end); |
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301 |
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302 -- TODO should we perhaps log presence as well? |
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303 -- And role/affiliation changes? |
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304 |
| 820 | 305 module:add_feature(xmlns_mam); |