prosody
e3e3aa286334
plugins/storage/mod_xep0227.lua

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plugins/storage/mod_xep0227.lua @ 4108:e3e3aa286334

util.datamanager: Handle gracefully the lack of prosody.paths.data
author Matthew Wild <mwild1@gmail.com>
date Tue, 11 Jan 2011 04:19:03 +0000
parent 3414:9a1f6239b63c
child 5121:b5a5643f8572
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3414
9a1f6239b63c storage/mod_xep0227: Initial commit.
Waqas Hussain <waqas20@gmail.com>
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1
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2 local ipairs, pairs = ipairs, pairs;
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3 local setmetatable = setmetatable;
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4 local tostring = tostring;
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5 local next = next;
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6 local t_remove = table.remove;
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7 local os_remove = os.remove;
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8 local io_open = io.open;
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9
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10 local st = require "util.stanza";
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11 local parse_xml_real = module:require("xmlparse");
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12
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13 local function getXml(user, host)
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14 local jid = user.."@"..host;
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15 local path = "data/"..jid..".xml";
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16 local f = io_open(path);
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17 if not f then return; end
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18 local s = f:read("*a");
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19 return parse_xml_real(s);
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20 end
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21 local function setXml(user, host, xml)
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22 local jid = user.."@"..host;
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23 local path = "data/"..jid..".xml";
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24 if xml then
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25 local f = io_open(path, "w");
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26 if not f then return; end
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27 local s = tostring(xml);
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28 f:write(s);
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29 f:close();
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30 return true;
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31 else
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32 return os_remove(path);
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33 end
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34 end
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35 local function getUserElement(xml)
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36 if xml and xml.name == "server-data" then
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37 local host = xml.tags[1];
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38 if host and host.name == "host" then
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39 local user = host.tags[1];
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40 if user and user.name == "user" then
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41 return user;
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42 end
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43 end
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44 end
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45 end
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46 local function createOuterXml(user, host)
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47 return st.stanza("server-data", {xmlns='http://www.xmpp.org/extensions/xep-0227.html#ns'})
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48 :tag("host", {jid=host})
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49 :tag("user", {name = user});
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50 end
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51 local function removeFromArray(array, value)
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52 for i,item in ipairs(array) do
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53 if item == value then
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54 t_remove(array, i);
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55 return;
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56 end
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57 end
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58 end
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59 local function removeStanzaChild(s, child)
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60 removeFromArray(s.tags, child);
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61 removeFromArray(s, child);
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62 end
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63
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64 local handlers = {};
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65
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66 handlers.accounts = {
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67 get = function(self, user)
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68 local user = getUserElement(getXml(user, self.host));
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69 if user and user.attr.password then
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70 return { password = user.attr.password };
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71 end
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72 end;
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73 set = function(self, user, data)
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74 if data and data.password then
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75 local xml = getXml(user, self.host);
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76 if not xml then xml = createOuterXml(user, self.host); end
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77 local usere = getUserElement(xml);
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78 usere.attr.password = data.password;
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79 return setXml(user, self.host, xml);
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80 else
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81 return setXml(user, self.host, nil);
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82 end
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83 end;
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84 };
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85 handlers.vcard = {
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86 get = function(self, user)
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87 local user = getUserElement(getXml(user, self.host));
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88 if user then
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89 local vcard = user:get_child("vCard", 'vcard-temp');
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90 if vcard then
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91 return st.preserialize(vcard);
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92 end
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93 end
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94 end;
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95 set = function(self, user, data)
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96 local xml = getXml(user, self.host);
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97 local usere = xml and getUserElement(xml);
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98 if usere then
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99 local vcard = usere:get_child("vCard", 'vcard-temp');
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100 if vcard then
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101 removeStanzaChild(usere, vcard);
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102 elseif not data then
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103 return true;
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104 end
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105 if data then
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106 vcard = st.deserialize(data);
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107 usere:add_child(vcard);
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108 end
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109 return setXml(user, self.host, xml);
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110 end
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111 return true;
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112 end;
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113 };
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114 handlers.private = {
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115 get = function(self, user)
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116 local user = getUserElement(getXml(user, self.host));
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117 if user then
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118 local private = user:get_child("query", "jabber:iq:private");
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119 if private then
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120 local r = {};
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121 for _, tag in ipairs(private.tags) do
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122 r[tag.name..":"..tag.attr.xmlns] = st.preserialize(tag);
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123 end
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124 return r;
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125 end
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126 end
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127 end;
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128 set = function(self, user, data)
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129 local xml = getXml(user, self.host);
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130 local usere = xml and getUserElement(xml);
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131 if usere then
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132 local private = usere:get_child("query", 'jabber:iq:private');
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133 if private then removeStanzaChild(usere, private); end
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134 if data and next(data) ~= nil then
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135 private = st.stanza("query", {xmlns='jabber:iq:private'});
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136 for _,tag in pairs(data) do
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137 private:add_child(st.deserialize(tag));
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138 end
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139 usere:add_child(private);
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140 end
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141 return setXml(user, self.host, xml);
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142 end
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143 return true;
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144 end;
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145 };
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146
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147 -----------------------------
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148 local driver = {};
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149
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150 function driver:open(host, datastore, typ)
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151 local instance = setmetatable({}, self);
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152 instance.host = host;
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153 instance.datastore = datastore;
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154 local handler = handlers[datastore];
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155 if not handler then return nil; end
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156 for key,val in pairs(handler) do
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157 instance[key] = val;
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158 end
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159 if instance.init then instance:init(); end
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160 return instance;
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161 end
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162
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163 module:add_item("data-driver", driver);