prosody
93b6587d9afb
core/rostermanager.lua

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core/rostermanager.lua @ 399:93b6587d9afb

Added temporary fix for srv on windows: using opendns nameservers
author Waqas Hussain <waqas20@gmail.com>
date Sun, 23 Nov 2008 10:43:50 +0500
parent 268:fd0607c8f179
child 519:cccd610a0ef9
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3 local log = require "util.logger".init("rostermanager");
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5 local setmetatable = setmetatable;
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6 local format = string.format;
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7 local loadfile, setfenv, pcall = loadfile, setfenv, pcall;
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8 local pairs, ipairs = pairs, ipairs;
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10 local hosts = hosts;
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12 local datamanager = require "util.datamanager"
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13 local st = require "util.stanza";
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15 module "rostermanager"
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17 function add_to_roster(session, jid, item)
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18 if session.roster then
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19 local old_item = session.roster[jid];
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20 session.roster[jid] = item;
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21 if save_roster(session.username, session.host) then
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22 return true;
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23 else
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24 session.roster[jid] = old_item;
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25 return nil, "wait", "internal-server-error", "Unable to save roster";
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26 end
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27 else
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28 return nil, "auth", "not-authorized", "Session's roster not loaded";
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29 end
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30 end
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32 function remove_from_roster(session, jid)
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33 if session.roster then
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34 local old_item = session.roster[jid];
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35 session.roster[jid] = nil;
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36 if save_roster(session.username, session.host) then
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37 return true;
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38 else
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39 session.roster[jid] = old_item;
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40 return nil, "wait", "internal-server-error", "Unable to save roster";
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41 end
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42 else
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43 return nil, "auth", "not-authorized", "Session's roster not loaded";
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44 end
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45 end
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47 function roster_push(username, host, jid)
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48 if jid ~= "pending" and hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster then
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49 local item = hosts[host].sessions[username].roster[jid];
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50 local stanza = st.iq({type="set"});
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51 stanza:tag("query", {xmlns = "jabber:iq:roster"});
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52 if item then
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53 stanza:tag("item", {jid = jid, subscription = item.subscription, name = item.name, ask = item.ask});
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54 for group in pairs(item.groups) do
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55 stanza:tag("group"):text(group):up();
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56 end
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57 else
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58 stanza:tag("item", {jid = jid, subscription = "remove"});
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59 end
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60 stanza:up(); -- move out from item
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61 stanza:up(); -- move out from stanza
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62 -- stanza ready
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63 for _, session in pairs(hosts[host].sessions[username].sessions) do
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64 if session.interested then
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65 -- FIXME do we need to set stanza.attr.to?
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66 session.send(stanza);
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67 end
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68 end
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69 end
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70 end
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72 function load_roster(username, host)
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73 log("debug", "load_roster: asked for: "..username.."@"..host);
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74 if hosts[host] and hosts[host].sessions[username] then
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75 local roster = hosts[host].sessions[username].roster;
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76 if not roster then
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77 log("debug", "load_roster: loading for new user: "..username.."@"..host);
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78 roster = datamanager.load(username, host, "roster") or {};
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79 hosts[host].sessions[username].roster = roster;
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80 end
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81 return roster;
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82 end
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83 -- Attempt to load roster for non-loaded user
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84 log("debug", "load_roster: loading for offline user: "..username.."@"..host);
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85 return datamanager.load(username, host, "roster") or {};
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86 end
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87
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88 function save_roster(username, host)
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89 log("debug", "save_roster: saving roster for "..username.."@"..host);
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90 if hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster then
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91 return datamanager.store(username, host, "roster", hosts[host].sessions[username].roster);
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92 end
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93 return nil;
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94 end
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95
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96 function process_inbound_subscription_approval(username, host, jid)
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97 local roster = load_roster(username, host);
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98 local item = roster[jid];
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99 if item and item.ask then
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100 if item.subscription == "none" then
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101 item.subscription = "to";
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102 else -- subscription == from
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103 item.subscription = "both";
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104 end
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105 item.ask = nil;
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106 return datamanager.store(username, host, "roster", roster);
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107 end
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108 end
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109
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110 function process_inbound_subscription_cancellation(username, host, jid)
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111 local roster = load_roster(username, host);
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112 local item = roster[jid];
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113 local changed = nil;
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114 if is_contact_pending_out(username, host, jid) then
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115 item.ask = nil;
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116 changed = true;
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117 end
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118 if item then
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119 if item.subscription == "to" then
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120 item.subscription = "none";
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121 changed = true;
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122 elseif item.subscription == "both" then
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123 item.subscription = "from";
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124 changed = true;
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125 end
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126 end
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127 if changed then
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128 return datamanager.store(username, host, "roster", roster);
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129 end
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130 end
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131
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132 function process_inbound_unsubscribe(username, host, jid)
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133 local roster = load_roster(username, host);
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134 local item = roster[jid];
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135 local changed = nil;
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136 if is_contact_pending_in(username, host, jid) then
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137 roster.pending[jid] = nil; -- TODO maybe delete roster.pending if empty?
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138 changed = true;
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139 end
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140 if item then
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141 if item.subscription == "from" then
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142 item.subscription = "none";
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143 changed = true;
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144 elseif item.subscription == "both" then
173
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145 item.subscription = "to";
176
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146 changed = true;
173
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147 end
176
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148 end
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149 if changed then
173
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150 return datamanager.store(username, host, "roster", roster);
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151 end
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152 end
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153
174
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154 function is_contact_subscribed(username, host, jid)
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155 local roster = load_roster(username, host);
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156 local item = roster[jid];
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157 return item and (item.subscription == "from" or item.subscription == "both");
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158 end
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159
176
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160 function is_contact_pending_in(username, host, jid)
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161 local roster = load_roster(username, host);
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162 return roster.pending and roster.pending[jid];
176
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163 end
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164 function set_contact_pending_in(username, host, jid, pending)
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165 local roster = load_roster(username, host);
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166 local item = roster[jid];
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167 if item and (item.subscription == "from" or item.subscription == "both") then
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168 return; -- false
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169 end
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170 if not roster.pending then roster.pending = {}; end
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171 roster.pending[jid] = true;
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172 return datamanager.store(username, host, "roster", roster);
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173 end
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174 function is_contact_pending_out(username, host, jid)
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175 local roster = load_roster(username, host);
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176 local item = roster[jid];
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177 return item and item.ask;
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178 end
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179 function set_contact_pending_out(username, host, jid) -- subscribe
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180 local roster = load_roster(username, host);
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181 local item = roster[jid];
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182 if item and (item.ask or item.subscription == "to" or item.subscription == "both") then
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183 return true;
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184 end
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185 if not item then
177
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186 item = {subscription = "none", groups = {}};
176
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187 roster[jid] = item;
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188 end
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189 item.ask = "subscribe";
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190 log("debug", "set_contact_pending_out: saving roster; set "..username.."@"..host..".roster["..jid.."].ask=subscribe");
176
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191 return datamanager.store(username, host, "roster", roster);
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192 end
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193 function unsubscribe(username, host, jid)
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194 local roster = load_roster(username, host);
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195 local item = roster[jid];
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196 if not item then return false; end
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197 if (item.subscription == "from" or item.subscription == "none") and not item.ask then
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198 return true;
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199 end
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200 item.ask = nil;
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201 if item.subscription == "both" then
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202 item.subscription = "from";
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203 elseif item.subscription == "to" then
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204 item.subscription = "none";
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205 end
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206 return datamanager.store(username, host, "roster", roster);
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207 end
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208 function subscribed(username, host, jid)
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209 if is_contact_pending_in(username, host, jid) then
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210 local roster = load_roster(username, host);
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211 local item = roster[jid];
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212 if item.subscription == "none" then
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213 item.subscription = "from";
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214 else -- subscription == to
177
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215 item.subscription = "both";
176
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216 end
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217 roster.pending[jid] = nil;
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218 -- TODO maybe remove roster.pending if empty
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219 return datamanager.store(username, host, "roster", roster);
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220 end -- TODO else implement optional feature pre-approval (ask = subscribed)
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221 end
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222 function unsubscribed(username, host, jid)
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223 local roster = load_roster(username, host);
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224 local item = roster[jid];
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225 local pending = is_contact_pending_in(username, host, jid);
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226 local changed = nil;
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227 if is_contact_pending_in(username, host, jid) then
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228 roster.pending[jid] = nil; -- TODO maybe delete roster.pending if empty?
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229 changed = true;
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230 end
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231 if item then
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232 if item.subscription == "from" then
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233 item.subscription = "none";
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234 changed = true;
267
6303b7454ad0 Some bugs fixed
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diff changeset
235 elseif item.subscription == "both" then
176
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236 item.subscription = "to";
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237 changed = true;
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238 end
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239 end
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diff changeset
240 if changed then
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241 return datamanager.store(username, host, "roster", roster);
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242 end
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243 end
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244
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245 function process_outbound_subscription_request(username, host, jid)
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246 local roster = load_roster(username, host);
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247 local item = roster[jid];
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248 if item and (item.subscription == "none" or item.subscription == "from") then
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249 item.ask = "subscribe";
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250 return datamanager.store(username, host, "roster", roster);
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251 end
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252 end
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253
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diff changeset
254 --[[function process_outbound_subscription_approval(username, host, jid)
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255 local roster = load_roster(username, host);
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256 local item = roster[jid];
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257 if item and (item.subscription == "none" or item.subscription == "from" then
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258 item.ask = "subscribe";
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259 return datamanager.store(username, host, "roster", roster);
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260 end
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261 end]]
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262
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263
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diff changeset
264
80
523ac742cc19 Fixed: rostermanager.lua now returns the module
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diff changeset
265 return _M;