Tue, 03 Aug 2010 10:58:15 +0100
sessionmanager: Remove dependency on eventmanager
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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); |