Fri, 17 Dec 2010 17:28:05 +0100
util.stanza: Iterate on childtags instead of all childs.
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1 | |
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storage/mod_ejabberd (and associated library): Initial commit.
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2 | local setmetatable = setmetatable; |
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3 | local error = error; |
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4 | local unpack = unpack; |
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5 | local module = module; |
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6 | local tostring = tostring; |
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7 | local pairs, next = pairs, next; |
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8 | local prosody = prosody; |
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9 | local assert = assert; |
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10 | local require = require; |
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11 | local st = require "util.stanza"; |
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12 | local DBI = require "DBI"; |
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13 | |
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14 | -- connect to db |
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15 | local params = module:get_option("sql_ejabberd") or error("No sql_ejabberd config option"); |
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16 | local database; |
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17 | do |
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18 | module:log("debug", "Opening database: %s", "dbi:"..params.driver..":"..params.database); |
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19 | prosody.unlock_globals(); |
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Matthew Wild <mwild1@gmail.com>
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20 | local dbh, err = DBI.Connect( |
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21 | params.driver, params.database, |
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22 | params.username, params.password, |
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23 | params.host, params.port |
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24 | ); |
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25 | prosody.lock_globals(); |
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26 | assert(dbh, err); |
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27 | dbh:autocommit(true); |
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28 | database = dbh; |
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29 | end |
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30 | |
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31 | -- initialize db |
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32 | local ejabberd_init = module:require("ejabberd_init"); |
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33 | ejabberd_init.init(database); |
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34 | |
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35 | local sqlcache = {}; |
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36 | local function prepare(sql) |
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37 | module:log("debug", "query: %s", sql); |
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38 | local err; |
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39 | local r = sqlcache[sql]; |
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40 | if not r then |
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41 | r, err = database:prepare(sql); |
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42 | if not r then error("Unable to prepare SQL statement: "..err); end |
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43 | sqlcache[sql] = r; |
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44 | end |
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45 | return r; |
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46 | end |
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47 | |
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48 | local _parse_xml = module:require("xmlparse"); |
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49 | local function parse_xml(str) |
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50 | local s = _parse_xml(str); |
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51 | if s and not s.gsub then |
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52 | return st.preserialize(s); |
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53 | end |
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54 | end |
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55 | local function unparse_xml(s) |
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56 | return tostring(st.deserialize(s)); |
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57 | end |
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58 | |
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59 | |
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60 | local handlers = {}; |
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61 | |
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62 | handlers.accounts = { |
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63 | get = function(self, user) |
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64 | local select = self:query("select password from users where username=? and host=?", user, self.host); |
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65 | local row = select and select:fetch(); |
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66 | if row then return { password = row[1] }; end |
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67 | end; |
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68 | set = function(self, user, data) |
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69 | if data and data.password then |
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70 | return self:modify("update users set password=? where username=? and host=?", data.password, user, self.host) |
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71 | or self:modify("insert into users (username, host, password) values (?, ?, ?)", user, self.host, data.password); |
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72 | else |
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73 | return self:modify("delete from users where username=? and host=?", user, self.host); |
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74 | end |
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75 | end; |
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76 | }; |
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77 | handlers.vcard = { |
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78 | get = function(self, user) |
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79 | local select = self:query("select vcard from vcard where username=? and host=?", user, self.host); |
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80 | local row = select and select:fetch(); |
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81 | if row then return parse_xml(row[1]); end |
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82 | end; |
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83 | set = function(self, user, data) |
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84 | if data then |
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85 | data = unparse_xml(data); |
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86 | return self:modify("update vcard set vcard=? where username=? and host=?", data, user, self.host) |
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87 | or self:modify("insert into vcard (username, host, vcard) values (?, ?, ?)", user, self.host, data); |
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88 | else |
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89 | return self:modify("delete from vcard where username=? and host=?", user, self.host); |
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90 | end |
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91 | end; |
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92 | }; |
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93 | handlers.private = { |
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94 | get = function(self, user) |
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95 | local select = self:query("select namespace,data from private_storage where username=? and host=?", user, self.host); |
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96 | if select then |
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97 | local data = {}; |
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98 | for row in select:rows() do |
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99 | data[row[1]] = parse_xml(row[2]); |
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100 | end |
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101 | return data; |
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102 | end |
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103 | end; |
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104 | set = function(self, user, data) |
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105 | if data then |
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106 | self:modify("delete from private_storage where username=? and host=?", user, self.host); |
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107 | for namespace,text in pairs(data) do |
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108 | self:modify("insert into private_storage (username, host, namespace, data) values (?, ?, ?, ?)", user, self.host, namespace, unparse_xml(text)); |
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109 | end |
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110 | return true; |
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111 | else |
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112 | return self:modify("delete from private_storage where username=? and host=?", user, self.host); |
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113 | end |
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114 | end; |
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115 | -- TODO map_set, map_get |
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116 | }; |
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117 | local subscription_map = { N = "none", B = "both", F = "from", T = "to" }; |
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118 | local subscription_map_reverse = { none = "N", both = "B", from = "F", to = "T" }; |
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119 | handlers.roster = { |
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120 | get = function(self, user) |
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121 | local select = self:query("select jid,nick,subscription,ask,server,subscribe,type from rosterusers where username=?", user); |
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122 | if select then |
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123 | local roster = { pending = {} }; |
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124 | for row in select:rows() do |
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125 | local jid,nick,subscription,ask,server,subscribe,typ = unpack(row); |
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126 | local item = { groups = {} }; |
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127 | if nick == "" then nick = nil; end |
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128 | item.nick = nick; |
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129 | item.subscription = subscription_map[subscription]; |
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130 | if ask == "N" then ask = nil; |
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131 | elseif ask == "O" then ask = "subscribe" |
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132 | elseif ask == "I" then roster.pending[jid] = true; ask = nil; |
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133 | elseif ask == "B" then roster.pending[jid] = true; ask = "subscribe"; |
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134 | else module:log("debug", "bad roster_item.ask: %s", ask); ask = nil; end |
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135 | item.ask = ask; |
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136 | roster[jid] = item; |
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137 | end |
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138 | |
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139 | select = self:query("select jid,grp from rostergroups where username=?", user); |
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140 | if select then |
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141 | for row in select:rows() do |
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142 | local jid,grp = unpack(row); |
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143 | if roster[jid] then roster[jid].groups[grp] = true; end |
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144 | end |
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145 | end |
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146 | select = self:query("select version from roster_version where username=?", user); |
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147 | local row = select and select:fetch(); |
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148 | if row then |
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149 | roster[false] = { version = row[1]; }; |
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150 | end |
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151 | return roster; |
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152 | end |
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153 | end; |
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154 | set = function(self, user, data) |
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155 | if data and next(data) ~= nil then |
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156 | self:modify("delete from rosterusers where username=?", user); |
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157 | self:modify("delete from rostergroups where username=?", user); |
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158 | self:modify("delete from roster_version where username=?", user); |
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159 | local done = {}; |
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160 | local pending = data.pending or {}; |
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161 | for jid,item in pairs(data) do |
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162 | if jid and jid ~= "pending" then |
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163 | local subscription = subscription_map_reverse[item.subscription]; |
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164 | local ask; |
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165 | if pending[jid] then |
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166 | if item.ask then ask = "B"; else ask = "I"; end |
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167 | else |
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168 | if item.ask then ask = "O"; else ask = "N"; end |
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169 | end |
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170 | local r = self:modify("insert into rosterusers (username,jid,nick,subscription,ask,askmessage,server,subscribe) values (?, ?, ?, ?, ?, '', '', '')", user, jid, item.nick or "", subscription, ask); |
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171 | if not r then module:log("debug", "--- :( %s", tostring(r)); end |
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172 | done[jid] = true; |
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173 | for group in pairs(item.groups) do |
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174 | self:modify("insert into rostergroups (username,jid,grp) values (?, ?, ?)", user, jid, group); |
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175 | end |
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176 | end |
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177 | end |
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178 | for jid in pairs(pending) do |
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179 | if not done[jid] then |
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180 | self:modify("insert into rosterusers (username,jid,nick,subscription,ask,askmessage,server,subscribe) values (?, ?, ?, ?, ?. ''. ''. '')", user, jid, "", "N", "I"); |
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181 | end |
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182 | end |
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183 | local version = data[false] and data[false].version; |
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184 | if version then |
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185 | self:modify("insert into roster_version (username,version) values (?, ?)", user, version); |
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186 | end |
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187 | return true; |
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188 | else |
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189 | self:modify("delete from rosterusers where username=?", user); |
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190 | self:modify("delete from rostergroups where username=?", user); |
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191 | self:modify("delete from roster_version where username=?", user); |
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192 | end |
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193 | end; |
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194 | }; |
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195 | |
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196 | ----------------------------- |
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197 | local driver = {}; |
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198 | driver.__index = driver; |
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199 | |
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200 | function driver:query(sql, ...) |
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201 | local stmt,err = prepare(sql); |
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202 | if not stmt then |
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203 | module:log("error", "Failed to prepare SQL [[%s]], error: %s", sql, err); |
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204 | return nil, err; |
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205 | end |
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206 | local ok, err = stmt:execute(...); |
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207 | if not ok then |
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208 | module:log("error", "Failed to execute SQL [[%s]], error: %s", sql, err); |
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209 | return nil, err; |
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210 | end |
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211 | return stmt; |
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212 | end |
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213 | function driver:modify(sql, ...) |
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214 | local stmt, err = self:query(sql, ...); |
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215 | if stmt and stmt:affected() > 0 then return stmt; end |
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216 | return nil, err; |
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217 | end |
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218 | |
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219 | function driver:open(datastore, typ) |
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220 | local instance = setmetatable({ host = module.host, datastore = datastore }, self); |
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221 | local handler = handlers[datastore]; |
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222 | if not handler then return nil; end |
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223 | for key,val in pairs(handler) do |
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224 | instance[key] = val; |
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225 | end |
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226 | if instance.init then instance:init(); end |
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227 | return instance; |
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228 | end |
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229 | |
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230 | ----------------------------- |
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231 | |
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232 | module:add_item("data-driver", driver); |