Mercurial > prosody-modules
annotate mod_mam/mod_mam.lua @ 905:eae665bc2122
mod_websocket: Fix require to work with lua-bitop (Thanks István and Zash)
author | Florian Zeitz <florob@babelmonkeys.de> |
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date | Sun, 10 Feb 2013 20:12:42 +0100 |
parents | 8a1beff848c1 |
children | ce8bb0386d08 |
rev | line source |
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635 | 1 -- XEP-0313: Message Archive Management for Prosody |
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2 -- Copyright (C) 2011-2012 Kim Alvefur |
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3 -- |
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4 -- This file is MIT/X11 licensed. |
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5 |
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6 local xmlns_mam = "urn:xmpp:mam:tmp"; |
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7 local xmlns_delay = "urn:xmpp:delay"; |
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8 local xmlns_forward = "urn:xmpp:forward:0"; |
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9 |
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10 local st = require "util.stanza"; |
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11 local rsm = module:require "rsm"; |
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12 local jid_bare = require "util.jid".bare; |
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13 local jid_split = require "util.jid".split; |
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14 local jid_prep = require "util.jid".prep; |
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15 local host = module.host; |
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16 |
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17 local dm_load = require "util.datamanager".load; |
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18 local dm_store = require "util.datamanager".store; |
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19 local dm_list_load = require "util.datamanager".list_load; |
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20 local dm_list_append = require "util.datamanager".list_append; |
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21 local rm_load_roster = require "core.rostermanager".load_roster; |
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22 |
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23 local tostring = tostring; |
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24 local time_now = os.time; |
707 | 25 local m_min = math.min; |
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26 local t_insert = table.insert; |
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27 local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse; |
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28 local uuid = require "util.uuid".generate; |
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29 local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50); |
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30 local global_default_policy = module:get_option("default_archive_policy", false); |
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31 -- TODO Should be possible to enforce it too |
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32 |
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33 |
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34 -- For translating preference names from string to boolean and back |
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35 local default_attrs = { |
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36 always = true, [true] = "always", |
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37 never = false, [false] = "never", |
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38 roster = "roster", |
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39 } |
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40 |
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41 do |
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42 local prefs_format = { |
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43 [false] = "roster", |
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44 -- default ::= true | false | "roster" |
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45 -- true = always, false = never, nil = global default |
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46 ["romeo@montague.net"] = true, -- always |
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47 ["montague@montague.net"] = false, -- newer |
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48 }; |
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49 end |
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50 |
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51 local archive_store = "archive2"; |
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52 local prefs_store = archive_store .. "_prefs"; |
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53 local function get_prefs(user) |
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54 return dm_load(user, host, prefs_store) or |
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55 { [false] = global_default_policy }; |
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56 end |
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57 local function set_prefs(user, prefs) |
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58 return dm_store(user, host, prefs_store, prefs); |
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59 end |
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60 |
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61 |
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62 -- Handle prefs. |
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63 module:hook("iq/self/"..xmlns_mam..":prefs", function(event) |
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64 local origin, stanza = event.origin, event.stanza; |
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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 = get_prefs(user); |
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68 local default = prefs[false]; |
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69 default = default ~= nil and default_attrs[default] or global_default_policy; |
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70 local reply = st.reply(stanza):tag("prefs", { xmlns = xmlns_mam, default = default }) |
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71 local always = st.stanza("always"); |
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72 local never = st.stanza("never"); |
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73 for k,v in pairs(prefs) do |
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74 if k then |
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75 (v and always or never):tag("jid"):text(k):up(); |
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76 end |
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77 end |
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78 reply:add_child(always):add_child(never); |
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79 origin.send(reply); |
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80 return true |
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81 else -- type == "set" |
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82 local prefs = {}; |
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83 local new_prefs = stanza:get_child("prefs", xmlns_mam); |
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84 local new_default = new_prefs.attr.default; |
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85 if new_default then |
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86 prefs[false] = default_attrs[new_default]; |
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87 end |
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88 |
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89 local always = new_prefs:get_child("always"); |
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90 if always then |
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91 for rule in always:childtags("jid") do |
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92 local jid = rule:get_text(); |
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93 prefs[jid] = true; |
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94 end |
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95 end |
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96 |
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97 local never = new_prefs:get_child("never"); |
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98 if never then |
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99 for rule in never:childtags("jid") do |
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100 local jid = rule:get_text(); |
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101 prefs[jid] = false; |
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102 end |
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103 end |
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104 |
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105 local ok, err = set_prefs(user, prefs); |
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106 if not ok then |
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107 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error storing preferences: "..tostring(err))); |
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108 else |
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109 origin.send(st.reply(stanza)); |
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110 end |
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111 return true |
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112 end |
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113 end); |
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114 |
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115 -- Handle archive queries |
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116 module:hook("iq/self/"..xmlns_mam..":query", function(event) |
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117 local origin, stanza = event.origin, event.stanza; |
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118 local query = stanza.tags[1]; |
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119 if stanza.attr.type == "get" then |
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120 local qid = query.attr.queryid; |
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121 |
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122 -- Search query parameters |
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123 local qwith = query:get_child_text("with"); |
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124 local qstart = query:get_child_text("start"); |
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125 local qend = query:get_child_text("end"); |
701
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126 local qset = rsm.get(query); |
523
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127 module:log("debug", "Archive query, id %s with %s from %s until %s)", |
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128 tostring(qid), qwith or "anyone", qstart or "the dawn of time", qend or "now"); |
558
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523
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129 |
751
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mod_mam: Stricter validation, reject invalid timestamps, jids.
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130 if qstart or qend then -- Validate timestamps |
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parents:
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131 local vstart, vend = (qstart and timestamp_parse(qstart)), (qend and timestamp_parse(qend)) |
808
ba2e207e1fb7
mod_mam: Fix variable name, blame autocomplete
Kim Alvefur <zash@zash.se>
parents:
800
diff
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132 if (qstart and not vstart) or (qend and not vend) then |
751
3c37445f26ac
mod_mam: Stricter validation, reject invalid timestamps, jids.
Kim Alvefur <zash@zash.se>
parents:
711
diff
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133 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp")) |
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parents:
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134 return true |
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parents:
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diff
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|
135 end |
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136 qstart, qend = vstart, vend; |
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diff
changeset
|
137 end |
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parents:
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diff
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138 |
799
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Kim Alvefur <zash@zash.se>
parents:
798
diff
changeset
|
139 local qres; |
751
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parents:
711
diff
changeset
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140 if qwith then -- Validate the 'with' jid |
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parents:
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diff
changeset
|
141 local pwith = qwith and jid_prep(qwith); |
3c37445f26ac
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parents:
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diff
changeset
|
142 if pwith and not qwith then -- it failed prepping |
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mod_mam: Stricter validation, reject invalid timestamps, jids.
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parents:
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143 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid JID")) |
3c37445f26ac
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parents:
711
diff
changeset
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144 return true |
3c37445f26ac
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parents:
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diff
changeset
|
145 end |
799
53917d98d411
mod_mam: Change storage format to store bare JID + resource.
Kim Alvefur <zash@zash.se>
parents:
798
diff
changeset
|
146 local _, _, resource = jid_split(qwith); |
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Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
147 qwith = jid_bare(pwith); |
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parents:
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diff
changeset
|
148 qres = resource; |
751
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Kim Alvefur <zash@zash.se>
parents:
711
diff
changeset
|
149 end |
523
eff140d53b83
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parents:
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changeset
|
150 |
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151 -- Load all the data! |
675
da33325453fb
mod_mam: Put name of store in a single variable
Kim Alvefur <zash@zash.se>
parents:
674
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152 local data, err = dm_list_load(origin.username, origin.host, archive_store); |
558
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parents:
523
diff
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153 if not data then |
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parents:
523
diff
changeset
|
154 if (not err) then |
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|
155 module:log("debug", "The archive was empty."); |
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diff
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|
156 origin.send(st.reply(stanza)); |
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523
diff
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|
157 else |
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parents:
523
diff
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|
158 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error loading archive: "..tostring(err))); |
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parents:
523
diff
changeset
|
159 end |
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|
160 return true |
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parents:
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diff
changeset
|
161 end |
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diff
changeset
|
162 |
701
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parents:
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diff
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|
163 -- RSM stuff |
706
5c2b96c4dde6
mod_mam: Enforce a max number of items returned, with a default.
Kim Alvefur <zash@zash.se>
parents:
705
diff
changeset
|
164 local qmax = m_min(qset and qset.max or default_max_items, max_max_items); |
701
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parents:
675
diff
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|
165 local qset_matches = not (qset and qset.after); |
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diff
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|
166 local first, last, index; |
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diff
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|
167 local n = 0; |
cc5805f83583
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parents:
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diff
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|
168 local start = qset and qset.index or 1; |
903
8a1beff848c1
mod_mam: Implemented an empty <before/>, to request the last n items in the archive.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
808
diff
changeset
|
169 local results = {}; |
8a1beff848c1
mod_mam: Implemented an empty <before/>, to request the last n items in the archive.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
808
diff
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|
170 -- An empty <before/> means: give the last n items. So we loop backwards. |
8a1beff848c1
mod_mam: Implemented an empty <before/>, to request the last n items in the archive.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
808
diff
changeset
|
171 local reverse = qset and qset.before or false; |
701
cc5805f83583
mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
172 |
558
66de25ffc8d9
mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents:
523
diff
changeset
|
173 module:log("debug", "Loaded %d items, about to filter", #data); |
903
8a1beff848c1
mod_mam: Implemented an empty <before/>, to request the last n items in the archive.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
808
diff
changeset
|
174 for i=(reverse and #data or start),(reverse and start or #data),(reverse and -1 or 1) do |
523
eff140d53b83
mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
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parents:
diff
changeset
|
175 local item = data[i]; |
799
53917d98d411
mod_mam: Change storage format to store bare JID + resource.
Kim Alvefur <zash@zash.se>
parents:
798
diff
changeset
|
176 local when, with, resource = item.when, item.with, item.resource; |
666
b42b75f3bda0
mod_mam: Add the UID to the <result> when sending an archived message back.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
635
diff
changeset
|
177 local id = item.id; |
701
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parents:
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diff
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|
178 --module:log("debug", "id is %s", id); |
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|
179 |
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180 -- RSM pre-send-checking |
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diff
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181 if qset then |
cc5805f83583
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parents:
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diff
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|
182 if qset.before == id then |
cc5805f83583
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parents:
675
diff
changeset
|
183 module:log("debug", "End of matching range found"); |
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Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
184 qset_matches = false; |
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parents:
675
diff
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|
185 break; |
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mod_mam: Implement support for Result Set Management in queries.
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parents:
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diff
changeset
|
186 end |
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mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
187 end |
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mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
188 |
558
66de25ffc8d9
mod_mam: Implement archiving preferences.
Kim Alvefur <zash@zash.se>
parents:
523
diff
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|
189 --module:log("debug", "message with %s at %s", with, when or "???"); |
523
eff140d53b83
mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
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parents:
diff
changeset
|
190 -- Apply query filter |
799
53917d98d411
mod_mam: Change storage format to store bare JID + resource.
Kim Alvefur <zash@zash.se>
parents:
798
diff
changeset
|
191 if (not qwith or ((qwith == with) and (not qres or qres == resource))) |
523
eff140d53b83
mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
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parents:
diff
changeset
|
192 and (not qstart or when >= qstart) |
701
cc5805f83583
mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
193 and (not qend or when <= qend) |
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Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
194 and (not qset or qset_matches) then |
523
eff140d53b83
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
195 local fwd_st = st.message{ to = origin.full_jid } |
666
b42b75f3bda0
mod_mam: Add the UID to the <result> when sending an archived message back.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
635
diff
changeset
|
196 :tag("result", { xmlns = xmlns_mam, queryid = qid, id = id }):up() |
523
eff140d53b83
mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
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diff
changeset
|
197 :tag("forwarded", { xmlns = xmlns_forward }) |
702
d94ee0848b27
mod_mam: Fix issue with get_text() and clean some unneeded variables.
Kim Alvefur <zash@zash.se>
parents:
701
diff
changeset
|
198 :tag("delay", { xmlns = xmlns_delay, stamp = timestamp(when) }):up(); |
523
eff140d53b83
mod_mam: Add experimental implementation of the Message Archive Management ProtoXEP
Kim Alvefur <zash@zash.se>
parents:
diff
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|
199 local orig_stanza = st.deserialize(item.stanza); |
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parents:
diff
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|
200 orig_stanza.attr.xmlns = "jabber:client"; |
eff140d53b83
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parents:
diff
changeset
|
201 fwd_st:add_child(orig_stanza); |
903
8a1beff848c1
mod_mam: Implemented an empty <before/>, to request the last n items in the archive.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
808
diff
changeset
|
202 if reverse then |
8a1beff848c1
mod_mam: Implemented an empty <before/>, to request the last n items in the archive.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
808
diff
changeset
|
203 t_insert(results, 1, fwd_st); |
8a1beff848c1
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Thijs Alkemade <thijsalkemade@gmail.com>
parents:
808
diff
changeset
|
204 else |
8a1beff848c1
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Thijs Alkemade <thijsalkemade@gmail.com>
parents:
808
diff
changeset
|
205 results[#results + 1] = fwd_st; |
8a1beff848c1
mod_mam: Implemented an empty <before/>, to request the last n items in the archive.
Thijs Alkemade <thijsalkemade@gmail.com>
parents:
808
diff
changeset
|
206 end |
701
cc5805f83583
mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
207 if not first then |
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mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
208 index = i; |
cc5805f83583
mod_mam: Implement support for Result Set Management in queries.
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parents:
675
diff
changeset
|
209 first = id; |
cc5805f83583
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parents:
675
diff
changeset
|
210 end |
cc5805f83583
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parents:
675
diff
changeset
|
211 last = id; |
cc5805f83583
mod_mam: Implement support for Result Set Management in queries.
Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
212 n = n + 1; |
cc5805f83583
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Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
213 elseif (qend and when > qend) then |
cc5805f83583
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Kim Alvefur <zash@zash.se>
parents:
675
diff
changeset
|
214 module:log("debug", "We have passed into messages more recent than requested"); |
673
9dcf98018644
mod_mam: Break when the message is more recent than the range requested
Kim Alvefur <zash@zash.se>
parents:
672
diff
changeset
|
215 break -- We have passed into messages more recent than requested |
523
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parents:
diff
changeset
|
216 end |
701
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parents:
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diff
changeset
|
217 |
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parents:
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diff
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|
218 -- RSM post-send-checking |
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diff
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|
219 if qset then |
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parents:
675
diff
changeset
|
220 if qset.after == id then |
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parents:
675
diff
changeset
|
221 module:log("debug", "Start of matching range found"); |
cc5805f83583
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675
diff
changeset
|
222 qset_matches = true; |
cc5805f83583
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parents:
675
diff
changeset
|
223 end |
711
53afd87f3612
mod_mam: Enforce max results even if RSM isn't used.
Kim Alvefur <zash@zash.se>
parents:
707
diff
changeset
|
224 end |
53afd87f3612
mod_mam: Enforce max results even if RSM isn't used.
Kim Alvefur <zash@zash.se>
parents:
707
diff
changeset
|
225 if n >= qmax then |
53afd87f3612
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parents:
707
diff
changeset
|
226 module:log("debug", "Max number of items matched"); |
53afd87f3612
mod_mam: Enforce max results even if RSM isn't used.
Kim Alvefur <zash@zash.se>
parents:
707
diff
changeset
|
227 break |
701
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228 end |
523
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229 end |
903
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230 for _,v in pairs(results) do |
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231 origin.send(v); |
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232 end |
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233 -- That's all folks! |
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234 module:log("debug", "Archive query %s completed", tostring(qid)); |
705
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235 |
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236 local reply = st.reply(stanza); |
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237 if last then |
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238 -- This is a bit redundant, isn't it? |
903
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239 reply:query(xmlns_mam):add_child(rsm.generate{first = (reverse and last or first), last = (reverse and first or last), count = n}); |
705
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240 end |
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241 origin.send(reply); |
523
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242 return true |
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243 end |
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244 end); |
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245 |
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246 local function has_in_roster(user, who) |
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247 local roster = rm_load_roster(user, host); |
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248 module:log("debug", "%s has %s in roster? %s", user, who, roster[who] and "yes" or "no"); |
798 | 249 return roster[who]; |
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250 end |
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251 |
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252 local function shall_store(user, who) |
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253 -- TODO Cache this? |
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254 local prefs = get_prefs(user); |
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255 local rule = prefs[who]; |
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256 module:log("debug", "%s's rule for %s is %s", user, who, tostring(rule)) |
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257 if rule ~= nil then |
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258 return rule; |
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259 else -- Below could be done by a metatable |
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260 local default = prefs[false]; |
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261 module:log("debug", "%s's default rule is %s", user, tostring(default)) |
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262 if default == nil then |
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263 default = global_default_policy; |
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264 module:log("debug", "Using global default rule, %s", tostring(default)) |
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265 end |
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266 if default == "roster" then |
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267 return has_in_roster(user, who); |
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268 end |
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269 return default; |
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270 end |
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271 end |
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272 |
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273 -- Handle messages |
523
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274 local function message_handler(event, c2s) |
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275 local origin, stanza = event.origin, event.stanza; |
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276 local orig_type = stanza.attr.type or "normal"; |
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277 local orig_to = stanza.attr.to; |
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278 local orig_from = stanza.attr.from; |
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279 |
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280 if not orig_from and c2s then |
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281 orig_from = origin.full_jid; |
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282 end |
619
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283 orig_to = orig_to or orig_from; -- Weird corner cases |
523
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284 |
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285 -- Don't store messages of these types |
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286 if orig_type == "error" |
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287 or orig_type == "headline" |
671
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Thijs Alkemade <thijsalkemade@gmail.com>
parents:
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|
288 or orig_type == "groupchat" |
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289 or not stanza:get_child("body") then |
523
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290 return; |
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291 -- TODO Maybe headlines should be configurable? |
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292 -- TODO Write a mod_mam_muc for groupchat messages. |
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|
293 end |
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|
294 |
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|
295 local store_user, store_host = jid_split(c2s and orig_from or orig_to); |
558
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|
296 local target_jid = c2s and orig_to or orig_from; |
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297 local target_bare = jid_bare(target_jid); |
799
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|
298 local _, _, target_resource = jid_split(target_jid); |
558
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|
299 |
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300 if shall_store(store_user, target_bare) then |
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|
301 module:log("debug", "Archiving stanza: %s", stanza:top_tag()); |
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|
302 |
559
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|
303 local id = uuid(); |
558
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|
304 local when = time_now(); |
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|
305 -- And stash it |
675
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Kim Alvefur <zash@zash.se>
parents:
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diff
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|
306 local ok, err = dm_list_append(store_user, store_host, archive_store, { |
558
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|
307 -- WARNING This format may change. |
559
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Kim Alvefur <zash@zash.se>
parents:
558
diff
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|
308 id = id, |
701
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|
309 when = when, |
799
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Kim Alvefur <zash@zash.se>
parents:
798
diff
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|
310 with = target_bare, |
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parents:
798
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|
311 resource = target_resource, |
558
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|
312 stanza = st.preserialize(stanza) |
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|
313 }); |
672
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parents:
671
diff
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|
314 --[[ This was dropped from the spec |
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diff
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|
315 if ok then |
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|
316 stanza:tag("archived", { xmlns = xmlns_mam, by = host, id = id }):up(); |
8ae5317ba032
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diff
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|
317 end |
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diff
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|
318 --]] |
558
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|
319 else |
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|
320 module:log("debug", "Not archiving stanza: %s", stanza:top_tag()); |
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|
321 end |
523
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|
322 end |
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|
323 |
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|
324 local function c2s_message_handler(event) |
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|
325 return message_handler(event, true); |
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|
326 end |
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|
327 |
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|
328 -- Stanzas sent by local clients |
621
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Kim Alvefur <zash@zash.se>
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diff
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|
329 module:hook("pre-message/bare", c2s_message_handler, 2); |
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diff
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|
330 module:hook("pre-message/full", c2s_message_handler, 2); |
523
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|
331 -- Stanszas to local clients |
621
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|
332 module:hook("message/bare", message_handler, 2); |
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|
333 module:hook("message/full", message_handler, 2); |
523
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|
334 |
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|
335 module:add_feature(xmlns_mam); |
558
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|
336 |