Mercurial > prosody-modules
annotate mod_mam_muc_sql/mod_mam_muc_sql.lua @ 1027:6a2dfa8af421
mod_websocket: Optimize string concatenation
author | Florian Zeitz <florob@babelmonkeys.de> |
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date | Thu, 30 May 2013 23:36:58 +0200 |
parents | 87e847280aef |
children | 7dbde05b48a9 |
rev | line source |
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mod_mam_muc_sql: SQL variant of mod_mam_muc
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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 "mod_mam/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 serialize, deserialize = require"util.json".encode, require"util.json".decode; |
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18 local unpack = unpack; |
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19 local tostring = tostring; |
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20 local time_now = os.time; |
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21 local t_insert = table.insert; |
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22 local m_min = math.min; |
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23 local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse; |
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24 local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50); |
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25 --local rooms_to_archive = module:get_option_set("rooms_to_archive",{}); |
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26 |
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27 local sql, setsql, getsql = {}; |
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28 do -- SQL stuff |
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29 local dburi; |
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30 local connection; |
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31 local connections = module:shared "/*/sql/connection-cache"; |
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32 local build_url = require"socket.url".build; |
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33 local resolve_relative_path = require "core.configmanager".resolve_relative_path; |
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34 local params = module:get_option("mam_sql", module:get_option("sql")); |
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35 |
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36 local function db2uri(params) |
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37 return build_url{ |
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38 scheme = params.driver, |
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39 user = params.username, |
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40 password = params.password, |
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41 host = params.host, |
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42 port = params.port, |
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43 path = params.database, |
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44 }; |
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45 end |
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46 |
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47 local function test_connection() |
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48 if not connection then return nil; end |
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49 if connection:ping() then |
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50 return true; |
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51 else |
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52 module:log("debug", "Database connection closed"); |
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53 connection = nil; |
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54 connections[dburi] = nil; |
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55 end |
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56 end |
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57 local function connect() |
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58 if not test_connection() then |
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59 prosody.unlock_globals(); |
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60 local dbh, err = DBI.Connect( |
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61 params.driver, params.database, |
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62 params.username, params.password, |
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63 params.host, params.port |
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64 ); |
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65 prosody.lock_globals(); |
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66 if not dbh then |
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67 module:log("debug", "Database connection failed: %s", tostring(err)); |
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68 return nil, err; |
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69 end |
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70 module:log("debug", "Successfully connected to database"); |
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71 dbh:autocommit(false); -- don't commit automatically |
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72 connection = dbh; |
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73 |
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74 connections[dburi] = dbh; |
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75 end |
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76 return connection; |
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77 end |
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78 |
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79 do -- process options to get a db connection |
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80 local ok; |
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81 prosody.unlock_globals(); |
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82 ok, DBI = pcall(require, "DBI"); |
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83 if not ok then |
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84 package.loaded["DBI"] = {}; |
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85 module:log("error", "Failed to load the LuaDBI library for accessing SQL databases: %s", DBI); |
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86 module:log("error", "More information on installing LuaDBI can be found at http://prosody.im/doc/depends#luadbi"); |
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87 end |
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88 prosody.lock_globals(); |
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89 if not ok or not DBI.Connect then |
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90 return; -- Halt loading of this module |
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91 end |
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92 |
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93 params = params or { driver = "SQLite3" }; |
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94 |
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95 if params.driver == "SQLite3" then |
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96 params.database = resolve_relative_path(prosody.paths.data or ".", params.database or "prosody.sqlite"); |
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97 end |
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98 |
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99 assert(params.driver and params.database, "Both the SQL driver and the database need to be specified"); |
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100 |
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101 dburi = db2uri(params); |
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102 connection = connections[dburi]; |
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103 |
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104 assert(connect()); |
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105 |
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106 end |
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107 |
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108 function getsql(sql, ...) |
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109 if params.driver == "PostgreSQL" then |
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110 sql = sql:gsub("`", "\""); |
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111 end |
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112 -- do prepared statement stuff |
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113 local stmt, err = connection:prepare(sql); |
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114 if not stmt and not test_connection() then error("connection failed"); end |
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115 if not stmt then module:log("error", "QUERY FAILED: %s %s", err, debug.traceback()); return nil, err; end |
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116 -- run query |
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117 local ok, err = stmt:execute(...); |
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118 if not ok and not test_connection() then error("connection failed"); end |
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119 if not ok then return nil, err; end |
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120 |
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121 return stmt; |
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122 end |
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123 function setsql(sql, ...) |
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124 local stmt, err = getsql(sql, ...); |
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125 if not stmt then return stmt, err; end |
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126 return stmt:affected(); |
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127 end |
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128 function sql.rollback(...) |
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129 if connection then connection:rollback(); end -- FIXME check for rollback error? |
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130 return ...; |
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131 end |
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132 function sql.commit(...) |
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133 if not connection:commit() then return nil, "SQL commit failed"; end |
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134 return ...; |
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135 end |
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136 |
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137 end |
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138 |
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139 local archive_store = "archive2"; |
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140 |
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141 -- Handle archive queries |
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142 module:hook("iq/bare/"..xmlns_mam..":query", function(event) |
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143 local origin, stanza = event.origin, event.stanza; |
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144 local room = jid_split(stanza.attr.to); |
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145 local query = stanza.tags[1]; |
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146 |
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147 local room_obj = hosts[module.host].modules.muc.rooms[jid_bare(stanza.attr.to)]; |
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148 if not room_obj then |
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149 return -- FIXME not found |
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150 end |
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151 local from = jid_bare(stanza.attr.from); |
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152 |
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153 if room_obj._affiliations[from] == "outcast" |
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154 or room_obj._data.members_only and not room_obj._affiliations[from] then |
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155 return -- FIXME unauth |
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156 end |
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157 |
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158 if stanza.attr.type == "get" then |
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159 local qid = query.attr.queryid; |
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|
160 |
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161 -- Search query parameters |
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162 local qwith = query:get_child_text("with"); |
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163 local qstart = query:get_child_text("start"); |
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164 local qend = query:get_child_text("end"); |
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165 local qset = rsm.get(query); |
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166 module:log("debug", "Archive query, id %s with %s from %s until %s)", |
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167 tostring(qid), qwith or "anyone", qstart or "the dawn of time", qend or "now"); |
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|
168 |
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169 if qstart or qend then -- Validate timestamps |
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170 local vstart, vend = (qstart and timestamp_parse(qstart)), (qend and timestamp_parse(qend)) |
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171 if (qstart and not vstart) or (qend and not vend) then |
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172 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp")) |
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173 return true |
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174 end |
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175 qstart, qend = vstart, vend; |
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|
176 end |
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|
177 |
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178 local qres; |
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179 if qwith then -- Validate the 'with' jid |
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180 local pwith = qwith and jid_prep(qwith); |
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181 if pwith and not qwith then -- it failed prepping |
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182 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid JID")) |
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|
183 return true |
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184 end |
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|
185 local _, _, resource = jid_split(qwith); |
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|
186 qwith = jid_bare(pwith); |
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187 qres = resource; |
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188 end |
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diff
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|
189 |
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parents:
diff
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|
190 -- RSM stuff |
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diff
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|
191 local qmax = m_min(qset and qset.max or default_max_items, max_max_items); |
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|
192 local first, last; |
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|
193 local n = 0; |
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|
194 |
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|
195 local sql_query = ([[ |
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|
196 SELECT `id`, `when`, `stanza` |
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|
197 FROM `prosodyarchive` |
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198 WHERE `host` = ? AND `user` = ? AND `store` = ? |
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|
199 AND `when` BETWEEN ? AND ? |
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parents:
diff
changeset
|
200 %s |
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parents:
diff
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|
201 AND `id` > ? |
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diff
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|
202 LIMIT ?; |
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|
203 ]]):format(qres and [[AND `resource` = ?]] or "") |
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parents:
diff
changeset
|
204 |
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parents:
diff
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|
205 local p = { |
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Kim Alvefur <zash@zash.se>
parents:
diff
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|
206 host, room, archive_store, |
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diff
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|
207 qstart or 0, qend or time_now(), |
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parents:
diff
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|
208 qset and tonumber(qset.after) or 0, |
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parents:
diff
changeset
|
209 qmax |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
210 }; |
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parents:
diff
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|
211 if qres then |
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diff
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|
212 t_insert(p, 6, qres); |
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parents:
diff
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|
213 end |
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Kim Alvefur <zash@zash.se>
parents:
diff
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|
214 module:log("debug", "getsql(sql_query, "..table.concat(p, ", ")); |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
215 local data, err = getsql(sql_query, unpack(p)); |
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parents:
diff
changeset
|
216 if not data then |
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Kim Alvefur <zash@zash.se>
parents:
diff
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|
217 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", "Error loading archive: "..tostring(err))); |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
218 return true |
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parents:
diff
changeset
|
219 end |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
220 |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
221 for item in data:rows() do |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
222 local id, when, orig_stanza = unpack(item); |
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parents:
diff
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|
223 --module:log("debug", "id is %s", id); |
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parents:
diff
changeset
|
224 |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
225 local fwd_st = st.message{ to = stanza.attr.from, from = stanza.attr.to } |
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parents:
diff
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|
226 :tag("result", { xmlns = xmlns_mam, queryid = qid, id = id }):up() |
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Kim Alvefur <zash@zash.se>
parents:
diff
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|
227 :tag("forwarded", { xmlns = xmlns_forward }) |
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parents:
diff
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|
228 :tag("delay", { xmlns = xmlns_delay, stamp = timestamp(when) }):up(); |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
229 orig_stanza = st.deserialize(deserialize(orig_stanza)); |
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parents:
diff
changeset
|
230 orig_stanza.attr.xmlns = "jabber:client"; |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
231 fwd_st:add_child(orig_stanza); |
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Kim Alvefur <zash@zash.se>
parents:
diff
changeset
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232 origin.send(fwd_st); |
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233 last = id; |
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234 n = n + 1; |
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235 if not first then |
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236 first = id; |
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237 end |
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238 end |
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239 -- That's all folks! |
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240 module:log("debug", "Archive query %s completed", tostring(qid)); |
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241 |
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242 local reply = st.reply(stanza); |
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243 if last then |
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244 -- This is a bit redundant, isn't it? |
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245 reply:query(xmlns_mam):add_child(rsm.generate{first = first, last = last, count = n}); |
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246 end |
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247 origin.send(reply); |
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248 return true |
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249 end |
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250 end); |
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251 |
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252 -- Handle messages |
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253 local function message_handler(event) |
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254 local origin, stanza = event.origin, event.stanza; |
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255 local orig_type = stanza.attr.type or "normal"; |
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256 local orig_to = stanza.attr.to; |
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257 local orig_from = stanza.attr.from; |
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258 |
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259 -- Still needed? |
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260 if not orig_from then |
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261 orig_from = origin.full_jid; |
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262 end |
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263 |
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264 -- Only store groupchat messages |
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265 if not (orig_type == "groupchat" and (stanza:get_child("body") or stanza:get_child("subject"))) then |
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266 return; |
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267 end |
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268 |
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269 local room = jid_split(orig_to); |
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270 local room_obj = hosts[host].modules.muc.rooms[orig_to] |
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271 if not room_obj then return end |
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272 |
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273 local when = time_now(); |
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274 local stanza = st.clone(stanza); -- Private copy |
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275 --stanza.attr.to = nil; |
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276 local nick = room_obj._jid_nick[orig_from]; |
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277 if not nick then return end |
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278 stanza.attr.from = nick; |
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279 local _, _, nick = jid_split(nick); |
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280 -- And stash it |
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281 local ok, err = setsql([[ |
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282 INSERT INTO `prosodyarchive` |
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283 (`host`, `user`, `store`, `when`, `resource`, `stanza`) |
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284 VALUES (?, ?, ?, ?, ?, ?); |
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285 ]], host, room, archive_store, when, nick, serialize(st.preserialize(stanza))) |
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286 if ok then |
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287 sql.commit(); |
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288 else |
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289 module:log("error", "SQL error: %s", err); |
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290 sql.rollback(); |
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291 end |
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292 --[[ This was dropped from the spec |
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293 if ok then |
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294 stanza:tag("archived", { xmlns = xmlns_mam, by = host, id = id }):up(); |
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295 end |
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296 --]] |
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297 end |
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298 |
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299 module:hook("message/bare", message_handler, 2); |
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300 |
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301 module:add_feature(xmlns_mam); |