prosody
6303b7454ad0
core/rostermanager.lua

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core/rostermanager.lua @ 267:6303b7454ad0

Some bugs fixed
author Waqas Hussain <waqas20@gmail.com>
date Sat, 15 Nov 2008 05:33:14 +0500
parent 193:13ac34255c37
child 268:fd0607c8f179
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0
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1
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2 local mainlog = log;
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3 local function log(type, message)
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4 mainlog(type, "rostermanager", message);
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5 end
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6
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7 local setmetatable = setmetatable;
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8 local format = string.format;
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9 local loadfile, setfenv, pcall = loadfile, setfenv, pcall;
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10 local pairs, ipairs = pairs, ipairs;
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12 local hosts = hosts;
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13
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14 local datamanager = require "util.datamanager"
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15 local st = require "util.stanza";
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16
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17 module "rostermanager"
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18
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19 function add_to_roster(session, jid, item)
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20 if session.roster then
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21 local old_item = session.roster[jid];
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22 session.roster[jid] = item;
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23 if save_roster(session.username, session.host) then
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24 return true;
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25 else
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26 session.roster[jid] = old_item;
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27 return nil, "wait", "internal-server-error", "Unable to save roster";
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28 end
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29 else
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30 return nil, "auth", "not-authorized", "Session's roster not loaded";
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31 end
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32 end
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33
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34 function remove_from_roster(session, jid)
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35 if session.roster then
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36 local old_item = session.roster[jid];
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37 session.roster[jid] = nil;
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38 if save_roster(session.username, session.host) then
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39 return true;
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40 else
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41 session.roster[jid] = old_item;
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42 return nil, "wait", "internal-server-error", "Unable to save roster";
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43 end
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44 else
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45 return nil, "auth", "not-authorized", "Session's roster not loaded";
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46 end
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47 end
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48
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49 function roster_push(username, host, jid)
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50 if jid ~= "pending" and hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster then
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51 local item = hosts[host].sessions[username].roster[jid];
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52 local stanza = st.iq({type="set"});
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53 stanza:tag("query", {xmlns = "jabber:iq:roster"});
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54 if item then
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55 stanza:tag("item", {jid = jid, subscription = item.subscription, name = item.name, ask = item.ask});
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56 for group in pairs(item.groups) do
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57 stanza:tag("group"):text(group):up();
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58 end
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59 else
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60 stanza:tag("item", {jid = jid, subscription = "remove"});
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61 end
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62 stanza:up(); -- move out from item
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63 stanza:up(); -- move out from stanza
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64 -- stanza ready
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65 for _, session in pairs(hosts[host].sessions[username].sessions) do
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66 if session.interested then
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67 -- FIXME do we need to set stanza.attr.to?
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68 session.send(stanza);
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69 end
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70 end
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71 end
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72 end
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73
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74 function load_roster(username, host)
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75 log("debug", "load_roster: asked for: "..username.."@"..host);
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76 if hosts[host] and hosts[host].sessions[username] then
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77 local roster = hosts[host].sessions[username].roster;
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78 if not roster then
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79 log("debug", "load_roster: loading for new user: "..username.."@"..host);
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80 roster = datamanager.load(username, host, "roster") or {};
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81 hosts[host].sessions[username].roster = roster;
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82 end
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83 return roster;
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84 end
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85 -- Attempt to load roster for non-loaded user
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86 log("debug", "load_roster: loading for offline user: "..username.."@"..host);
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87 return datamanager.load(username, host, "roster") or {};
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88 end
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89
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90 function save_roster(username, host)
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91 log("debug", "save_roster: saving roster for "..username.."@"..host);
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92 if hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster then
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93 return datamanager.store(username, host, "roster", hosts[host].sessions[username].roster);
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94 end
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95 return nil;
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96 end
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97
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98 function process_inbound_subscription_approval(username, host, jid)
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99 local roster = load_roster(username, host);
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100 local item = roster[jid];
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101 if item and item.ask then
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102 if item.subscription == "none" then
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103 item.subscription = "to";
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104 else -- subscription == from
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105 item.subscription = "both";
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106 end
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107 item.ask = nil;
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108 return datamanager.store(username, host, "roster", roster);
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109 end
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110 end
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111
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112 function process_inbound_subscription_cancellation(username, host, jid)
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113 local roster = load_roster(username, host);
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114 local item = roster[jid];
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115 local changed = nil;
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116 if is_contact_pending_out(username, host, jid) then
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117 item.ask = nil;
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118 changed = true;
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119 end
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120 if item then
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121 if item.subscription == "to" then
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122 item.subscription = "none";
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123 changed = true;
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124 elseif item.subscription == "both" then
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125 item.subscription = "from";
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126 changed = true;
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127 end
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128 end
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129 if changed then
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130 return datamanager.store(username, host, "roster", roster);
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131 end
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132 end
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133
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134 function process_inbound_unsubscribe(username, host, jid)
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135 local roster = load_roster(username, host);
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136 local item = roster[jid];
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137 local changed = nil;
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138 if is_contact_pending_in(username, host, jid) then
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139 roster.pending[jid] = nil; -- TODO maybe delete roster.pending if empty?
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140 changed = true;
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141 end
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142 if item then
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143 if item.subscription == "from" then
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144 item.subscription = "none";
176
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145 changed = true;
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146 elseif item.subscription == "both" then
173
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147 item.subscription = "to";
176
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148 changed = true;
173
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149 end
176
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150 end
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151 if changed then
173
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152 return datamanager.store(username, host, "roster", roster);
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153 end
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154 end
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155
174
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156 function is_contact_subscribed(username, host, jid)
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157 local roster = load_roster(username, host);
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158 local item = roster[jid];
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159 return item and (item.subscription == "from" or item.subscription == "both");
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160 end
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161
176
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162 function is_contact_pending_in(username, host, jid)
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163 local roster = load_roster(username, host);
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164 return roster.pending and roster.pending[jid];
176
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165 end
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166 function set_contact_pending_in(username, host, jid, pending)
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167 local roster = load_roster(username, host);
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168 local item = roster[jid];
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169 if item and (item.subscription == "from" or item.subscription == "both") then
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170 return; -- false
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171 end
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172 if not roster.pending then roster.pending = {}; end
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173 roster.pending[jid] = true;
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174 return datamanager.store(username, host, "roster", roster);
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175 end
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176 function is_contact_pending_out(username, host, jid)
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177 local roster = load_roster(username, host);
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178 local item = roster[jid];
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179 return item and item.ask;
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180 end
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181 function set_contact_pending_out(username, host, jid) -- subscribe
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182 local roster = load_roster(username, host);
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183 local item = roster[jid];
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184 if item and (item.ask or item.subscription == "to" or item.subscription == "both") then
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185 return true;
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186 end
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187 if not item then
177
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188 item = {subscription = "none", groups = {}};
176
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189 roster[jid] = item;
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190 end
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191 item.ask = "subscribe";
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192 log("debug", "set_contact_pending_out: saving roster; set "..username.."@"..host..".roster["..jid.."].ask=subscribe");
176
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193 return datamanager.store(username, host, "roster", roster);
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194 end
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195 function unsubscribe(username, host, jid)
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196 local roster = load_roster(username, host);
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197 local item = roster[jid];
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198 if not item then return false; end
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199 if (item.subscription == "from" or item.subscription == "none") and not item.ask then
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200 return true;
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201 end
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202 item.ask = nil;
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203 if item.subscription == "both" then
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204 item.subscription = "from";
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205 elseif item.subscription == "to" then
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206 item.subscription = "none";
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207 end
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208 return datamanager.store(username, host, "roster", roster);
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209 end
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210 function subscribed(username, host, jid)
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211 if is_contact_pending_in(username, host, jid) then
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212 local roster = load_roster(username, host);
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213 local item = roster[jid];
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214 if item.subscription == "none" then
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215 item.subscription = "from";
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216 else -- subscription == to
177
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217 item.subscription = "both";
176
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218 end
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219 roster.pending[jid] = nil;
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220 -- TODO maybe remove roster.pending if empty
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221 return datamanager.store(username, host, "roster", roster);
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222 end -- TODO else implement optional feature pre-approval (ask = subscribed)
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223 end
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224 function unsubscribed(username, host, jid)
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225 local roster = load_roster(username, host);
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226 local item = roster[jid];
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227 local pending = is_contact_pending_in(username, host, jid);
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228 local changed = nil;
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229 if is_contact_pending_in(username, host, jid) then
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230 roster.pending[jid] = nil; -- TODO maybe delete roster.pending if empty?
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231 changed = true;
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232 end
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233 if item then
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diff changeset
234 if item.subscription == "from" then
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235 item.subscription = "none";
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236 changed = true;
267
6303b7454ad0 Some bugs fixed
Waqas Hussain <waqas20@gmail.com>
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diff changeset
237 elseif item.subscription == "both" then
176
e5cd2a03891d Outbound presence subscription
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diff changeset
238 item.subscription = "to";
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239 changed = true;
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240 end
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diff changeset
241 end
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diff changeset
242 if changed then
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diff changeset
243 return datamanager.store(username, host, "roster", roster);
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244 end
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245 end
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diff changeset
246
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diff changeset
247 function process_outbound_subscription_request(username, host, jid)
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248 local roster = load_roster(username, host);
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249 local item = roster[jid];
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250 if item and (item.subscription == "none" or item.subscription == "from") then
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diff changeset
251 item.ask = "subscribe";
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252 return datamanager.store(username, host, "roster", roster);
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253 end
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diff changeset
254 end
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diff changeset
255
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diff changeset
256 --[[function process_outbound_subscription_approval(username, host, jid)
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257 local roster = load_roster(username, host);
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258 local item = roster[jid];
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diff changeset
259 if item and (item.subscription == "none" or item.subscription == "from" then
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diff changeset
260 item.ask = "subscribe";
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261 return datamanager.store(username, host, "roster", roster);
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262 end
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263 end]]
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264
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265
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diff changeset
266
80
523ac742cc19 Fixed: rostermanager.lua now returns the module
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diff changeset
267 return _M;