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mod_mam/mod_mam.lua @ 1746:5734a6199938
mod_mam: Fire event on successful storage of message
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 18 May 2015 03:03:42 +0200 |
parent | 1737:2ee9725c7fc6 |
child | 1770:2c43e81236a3 |
rev | line source |
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635 | 1 -- XEP-0313: Message Archive Management for Prosody |
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2 -- Copyright (C) 2011-2014 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:0"; |
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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"; |
1399 | 12 local get_prefs = module:require"mamprefs".get; |
13 local set_prefs = module:require"mamprefs".set; | |
14 local prefs_to_stanza = module:require"mamprefsxml".tostanza; | |
15 local prefs_from_stanza = module:require"mamprefsxml".fromstanza; | |
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16 local jid_bare = require "util.jid".bare; |
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17 local jid_split = require "util.jid".split; |
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18 local dataform = require "util.dataforms".new; |
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19 local host = module.host; |
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20 |
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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 getmetatable = getmetatable; |
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24 local function is_stanza(x) |
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25 return getmetatable(x) == st.stanza_mt; |
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26 end |
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27 |
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28 local tostring = tostring; |
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29 local time_now = os.time; |
707 | 30 local m_min = math.min; |
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31 local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse; |
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32 local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50); |
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33 local global_default_policy = module:get_option("default_archive_policy", false); |
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34 if global_default_policy ~= "roster" then |
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35 global_default_policy = module:get_option_boolean("default_archive_policy", global_default_policy); |
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36 end |
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37 |
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38 local archive_store = "archive2"; |
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39 local archive = module:open_store(archive_store, "archive"); |
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40 if not archive or archive.name == "null" then |
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41 module:log("error", "Could not open archive storage"); |
1698 | 42 return; |
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43 elseif not archive.find then |
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44 module:log("error", "mod_%s does not support archiving", archive._provided_by); |
1698 | 45 return; |
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46 end |
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47 |
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48 -- Handle prefs. |
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49 module:hook("iq/self/"..xmlns_mam..":prefs", function(event) |
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50 local origin, stanza = event.origin, event.stanza; |
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51 local user = origin.username; |
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52 if stanza.attr.type == "get" then |
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53 local prefs = prefs_to_stanza(get_prefs(user)); |
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54 local reply = st.reply(stanza):add_child(prefs); |
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55 origin.send(reply); |
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56 else -- type == "set" |
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57 local new_prefs = stanza:get_child("prefs", xmlns_mam); |
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58 local prefs = prefs_from_stanza(new_prefs); |
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59 local ok, err = set_prefs(user, prefs); |
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60 if not ok then |
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61 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error storing preferences: "..tostring(err))); |
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62 else |
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63 origin.send(st.reply(stanza)); |
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64 end |
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65 end |
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66 return true; |
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67 end); |
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68 |
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69 local query_form = dataform { |
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70 { name = "FORM_TYPE"; type = "hidden"; value = xmlns_mam; }; |
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71 { name = "with"; type = "jid-single"; }; |
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72 { name = "start"; type = "text-single" }; |
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73 { name = "end"; type = "text-single"; }; |
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74 }; |
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75 |
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76 -- Serve form |
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77 module:hook("iq-get/self/"..xmlns_mam..":query", function(event) |
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78 local origin, stanza = event.origin, event.stanza; |
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79 origin.send(st.reply(stanza):add_child(query_form:form())); |
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80 return true; |
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81 end); |
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82 |
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83 -- Handle archive queries |
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84 module:hook("iq-set/self/"..xmlns_mam..":query", function(event) |
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85 local origin, stanza = event.origin, event.stanza; |
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86 local query = stanza.tags[1]; |
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87 local qid = query.attr.queryid; |
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88 |
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89 -- Search query parameters |
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90 local qwith, qstart, qend; |
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91 local form = query:get_child("x", "jabber:x:data"); |
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92 if form then |
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93 local err; |
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94 form, err = query_form:data(form); |
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95 if err then |
1698 | 96 origin.send(st.error_reply(stanza, "modify", "bad-request", select(2, next(err)))); |
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97 return true; |
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98 end |
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99 qwith, qstart, qend = form["with"], form["start"], form["end"]; |
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100 qwith = qwith and jid_bare(qwith); -- dataforms does jidprep |
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101 end |
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102 |
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103 if qstart or qend then -- Validate timestamps |
1698 | 104 local vstart, vend = (qstart and timestamp_parse(qstart)), (qend and timestamp_parse(qend)); |
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105 if (qstart and not vstart) or (qend and not vend) then |
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106 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp")) |
1698 | 107 return true; |
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108 end |
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109 qstart, qend = vstart, vend; |
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110 end |
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111 |
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112 module:log("debug", "Archive query, id %s with %s from %s until %s)", |
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113 tostring(qid), qwith or "anyone", qstart or "the dawn of time", qend or "now"); |
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114 |
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115 -- RSM stuff |
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116 local qset = rsm.get(query); |
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117 local qmax = m_min(qset and qset.max or default_max_items, max_max_items); |
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118 local reverse = qset and qset.before or false; |
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119 local before, after = qset and qset.before, qset and qset.after; |
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120 if type(before) ~= "string" then before = nil; end |
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121 |
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122 |
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123 -- Load all the data! |
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124 local data, err = archive:find(origin.username, { |
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125 start = qstart; ["end"] = qend; -- Time range |
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126 with = qwith; |
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127 limit = qmax + 1; |
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128 before = before; after = after; |
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129 reverse = reverse; |
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130 total = true; |
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131 }); |
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132 |
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133 if not data then |
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134 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); |
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135 return true; |
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136 end |
1683 | 137 local total = err; |
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138 |
1698 | 139 origin.send(st.reply(stanza)); |
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140 local msg_reply_attr = { to = stanza.attr.from, from = stanza.attr.to }; |
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141 |
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142 local results = {}; |
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143 |
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144 -- Wrap it in stuff and deliver |
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145 local first, last; |
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146 local count = 0; |
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147 local complete = "true"; |
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148 for id, item, when in data do |
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149 count = count + 1; |
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150 if count > qmax then |
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151 complete = nil; |
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152 break; |
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153 end |
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154 local fwd_st = st.message(msg_reply_attr) |
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155 :tag("result", { xmlns = xmlns_mam, queryid = qid, id = id }) |
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156 :tag("forwarded", { xmlns = xmlns_forward }) |
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157 :tag("delay", { xmlns = xmlns_delay, stamp = timestamp(when) }):up(); |
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158 |
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159 if not is_stanza(item) then |
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160 item = st.deserialize(item); |
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161 end |
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162 item.attr.xmlns = "jabber:client"; |
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163 fwd_st:add_child(item); |
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164 |
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165 if not first then first = id; end |
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166 last = id; |
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167 |
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168 if reverse then |
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169 results[count] = fwd_st; |
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170 else |
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171 origin.send(fwd_st); |
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172 end |
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173 end |
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174 if reverse then |
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175 for i = #results, 1, -1 do |
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176 origin.send(results[i]); |
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177 end |
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178 end |
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179 |
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180 -- That's all folks! |
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181 module:log("debug", "Archive query %s completed", tostring(qid)); |
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182 |
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183 if reverse then first, last = last, first; end |
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184 origin.send(st.message(msg_reply_attr) |
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185 :tag("fin", { xmlns = xmlns_mam, queryid = qid, complete = complete }) |
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186 :add_child(rsm.generate { |
1683 | 187 first = first, last = last, count = total })); |
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188 return true; |
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189 end); |
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190 |
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191 local function has_in_roster(user, who) |
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192 local roster = rm_load_roster(user, host); |
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193 module:log("debug", "%s has %s in roster? %s", user, who, roster[who] and "yes" or "no"); |
798 | 194 return roster[who]; |
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195 end |
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196 |
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197 local function shall_store(user, who) |
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198 -- TODO Cache this? |
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199 local prefs = get_prefs(user); |
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200 local rule = prefs[who]; |
1698 | 201 module:log("debug", "%s's rule for %s is %s", user, who, tostring(rule)); |
558
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202 if rule ~= nil then |
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203 return rule; |
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204 else -- Below could be done by a metatable |
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205 local default = prefs[false]; |
1698 | 206 module:log("debug", "%s's default rule is %s", user, tostring(default)); |
558
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207 if default == nil then |
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208 default = global_default_policy; |
1698 | 209 module:log("debug", "Using global default rule, %s", tostring(default)); |
558
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210 end |
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211 if default == "roster" then |
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212 return has_in_roster(user, who); |
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213 end |
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214 return default; |
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215 end |
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216 end |
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217 |
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218 -- Handle messages |
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219 local function message_handler(event, c2s) |
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220 local origin, stanza = event.origin, event.stanza; |
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221 local orig_type = stanza.attr.type or "normal"; |
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222 local orig_from = stanza.attr.from; |
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223 local orig_to = stanza.attr.to or orig_from; |
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224 -- Stanza without 'to' are treated as if it was to their own bare jid |
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225 |
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226 -- We don't store messages of these types |
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227 if orig_type == "error" |
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228 or orig_type == "headline" |
671
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parents:
666
diff
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229 or orig_type == "groupchat" |
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230 -- or that don't have a <body/> |
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231 or not stanza:get_child("body") |
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232 -- or if hints suggest we shouldn't |
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233 or stanza:get_child("no-permanent-store", "urn:xmpp:hints") |
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234 or stanza:get_child("no-store", "urn:xmpp:hints") then |
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235 module:log("debug", "Not archiving stanza: %s (content)", stanza:top_tag()); |
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236 return; |
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237 end |
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238 |
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239 -- Whos storage do we put it in? |
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240 local store_user = c2s and origin.username or jid_split(orig_to); |
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241 -- And who are they chatting with? |
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242 local with = jid_bare(c2s and orig_to or orig_from); |
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243 |
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244 -- Check with the users preferences |
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245 if shall_store(store_user, with) then |
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246 module:log("debug", "Archiving stanza: %s", stanza:top_tag()); |
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247 |
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248 -- And stash it |
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249 local ok, id = archive:append(store_user, nil, time_now(), with, stanza); |
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250 if ok then |
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251 module:fire_event("archive-message-added", { origin = origin, stanza = stanza, for_user = store_user, id = id }); |
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252 end |
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253 else |
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254 module:log("debug", "Not archiving stanza: %s (prefs)", stanza:top_tag()); |
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255 end |
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256 end |
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257 |
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258 local function c2s_message_handler(event) |
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259 return message_handler(event, true); |
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260 end |
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261 |
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262 -- Stanzas sent by local clients |
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263 module:hook("pre-message/bare", c2s_message_handler, 2); |
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264 module:hook("pre-message/full", c2s_message_handler, 2); |
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265 -- Stanszas to local clients |
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266 module:hook("message/bare", message_handler, 2); |
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267 module:hook("message/full", message_handler, 2); |
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268 |
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269 module:add_feature(xmlns_mam); -- COMPAT with XEP-0313 v 0.1 |
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270 |
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271 module:hook("account-disco-info", function(event) |
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272 event.reply:tag("feature", {var=xmlns_mam}):up(); |
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273 end); |
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274 |