prosody
4ae3e81513f3
core/rostermanager.lua

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core/rostermanager.lua @ 615:4ae3e81513f3

0.1 -> 0.2
author Matthew Wild <mwild1@gmail.com>
date Wed, 10 Dec 2008 15:44:03 +0000
parent 519:cccd610a0ef9
child 758:b1885732e979
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615
4ae3e81513f3 0.1 -> 0.2
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diff changeset
1 -- Prosody IM v0.2
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2 -- Copyright (C) 2008 Matthew Wild
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3 -- Copyright (C) 2008 Waqas Hussain
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4 --
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5 -- This program is free software; you can redistribute it and/or
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6 -- modify it under the terms of the GNU General Public License
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7 -- as published by the Free Software Foundation; either version 2
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8 -- of the License, or (at your option) any later version.
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9 --
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10 -- This program is distributed in the hope that it will be useful,
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11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 -- GNU General Public License for more details.
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14 --
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15 -- You should have received a copy of the GNU General Public License
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16 -- along with this program; if not, write to the Free Software
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17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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18 --
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19
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20
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21
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22
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23 local log = require "util.logger".init("rostermanager");
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24
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25 local setmetatable = setmetatable;
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26 local format = string.format;
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27 local loadfile, setfenv, pcall = loadfile, setfenv, pcall;
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28 local pairs, ipairs = pairs, ipairs;
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29
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30 local hosts = hosts;
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31
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32 local datamanager = require "util.datamanager"
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33 local st = require "util.stanza";
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34
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35 module "rostermanager"
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36
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37 function add_to_roster(session, jid, item)
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38 if session.roster then
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39 local old_item = session.roster[jid];
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40 session.roster[jid] = item;
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41 if save_roster(session.username, session.host) then
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42 return true;
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43 else
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44 session.roster[jid] = old_item;
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45 return nil, "wait", "internal-server-error", "Unable to save roster";
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46 end
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47 else
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48 return nil, "auth", "not-authorized", "Session's roster not loaded";
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49 end
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50 end
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51
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52 function remove_from_roster(session, jid)
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53 if session.roster then
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54 local old_item = session.roster[jid];
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55 session.roster[jid] = nil;
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56 if save_roster(session.username, session.host) then
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57 return true;
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58 else
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59 session.roster[jid] = old_item;
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60 return nil, "wait", "internal-server-error", "Unable to save roster";
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61 end
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62 else
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63 return nil, "auth", "not-authorized", "Session's roster not loaded";
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64 end
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65 end
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66
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67 function roster_push(username, host, jid)
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68 if jid ~= "pending" and hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster then
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69 local item = hosts[host].sessions[username].roster[jid];
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70 local stanza = st.iq({type="set"});
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71 stanza:tag("query", {xmlns = "jabber:iq:roster"});
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72 if item then
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73 stanza:tag("item", {jid = jid, subscription = item.subscription, name = item.name, ask = item.ask});
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74 for group in pairs(item.groups) do
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75 stanza:tag("group"):text(group):up();
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76 end
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77 else
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78 stanza:tag("item", {jid = jid, subscription = "remove"});
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79 end
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80 stanza:up(); -- move out from item
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81 stanza:up(); -- move out from stanza
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82 -- stanza ready
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83 for _, session in pairs(hosts[host].sessions[username].sessions) do
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84 if session.interested then
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85 -- FIXME do we need to set stanza.attr.to?
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86 session.send(stanza);
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87 end
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88 end
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89 end
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90 end
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91
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92 function load_roster(username, host)
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93 log("debug", "load_roster: asked for: "..username.."@"..host);
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94 if hosts[host] and hosts[host].sessions[username] then
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95 local roster = hosts[host].sessions[username].roster;
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96 if not roster then
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97 log("debug", "load_roster: loading for new user: "..username.."@"..host);
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98 roster = datamanager.load(username, host, "roster") or {};
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99 hosts[host].sessions[username].roster = roster;
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100 end
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101 return roster;
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102 end
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103 -- Attempt to load roster for non-loaded user
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104 log("debug", "load_roster: loading for offline user: "..username.."@"..host);
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105 return datamanager.load(username, host, "roster") or {};
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106 end
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108 function save_roster(username, host)
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109 log("debug", "save_roster: saving roster for "..username.."@"..host);
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110 if hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster then
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111 return datamanager.store(username, host, "roster", hosts[host].sessions[username].roster);
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112 end
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113 return nil;
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114 end
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115
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116 function process_inbound_subscription_approval(username, host, jid)
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117 local roster = load_roster(username, host);
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118 local item = roster[jid];
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119 if item and item.ask then
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120 if item.subscription == "none" then
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121 item.subscription = "to";
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122 else -- subscription == from
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123 item.subscription = "both";
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124 end
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125 item.ask = nil;
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126 return datamanager.store(username, host, "roster", roster);
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127 end
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128 end
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129
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130 function process_inbound_subscription_cancellation(username, host, jid)
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131 local roster = load_roster(username, host);
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132 local item = roster[jid];
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133 local changed = nil;
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134 if is_contact_pending_out(username, host, jid) then
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135 item.ask = nil;
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136 changed = true;
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137 end
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138 if item then
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139 if item.subscription == "to" then
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140 item.subscription = "none";
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141 changed = true;
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142 elseif item.subscription == "both" then
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143 item.subscription = "from";
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144 changed = true;
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145 end
176
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146 end
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diff changeset
147 if changed then
172
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148 return datamanager.store(username, host, "roster", roster);
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149 end
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diff changeset
150 end
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diff changeset
151
173
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diff changeset
152 function process_inbound_unsubscribe(username, host, jid)
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153 local roster = load_roster(username, host);
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154 local item = roster[jid];
176
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155 local changed = nil;
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156 if is_contact_pending_in(username, host, jid) then
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157 roster.pending[jid] = nil; -- TODO maybe delete roster.pending if empty?
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158 changed = true;
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159 end
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diff changeset
160 if item then
173
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parents: 172
diff changeset
161 if item.subscription == "from" then
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162 item.subscription = "none";
176
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163 changed = true;
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164 elseif item.subscription == "both" then
173
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165 item.subscription = "to";
176
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166 changed = true;
173
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167 end
176
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168 end
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169 if changed then
173
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170 return datamanager.store(username, host, "roster", roster);
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171 end
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172 end
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parents: 172
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173
174
f9aff1fc7e99 Inbound subscription request
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174 function is_contact_subscribed(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.subscription == "from" or item.subscription == "both");
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178 end
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179
176
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180 function is_contact_pending_in(username, host, jid)
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181 local roster = load_roster(username, host);
177
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182 return roster.pending and roster.pending[jid];
176
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183 end
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184 function set_contact_pending_in(username, host, jid, pending)
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185 local roster = load_roster(username, host);
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186 local item = roster[jid];
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187 if item and (item.subscription == "from" or item.subscription == "both") then
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188 return; -- false
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189 end
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190 if not roster.pending then roster.pending = {}; end
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191 roster.pending[jid] = true;
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192 return datamanager.store(username, host, "roster", roster);
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193 end
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194 function is_contact_pending_out(username, host, jid)
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195 local roster = load_roster(username, host);
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196 local item = roster[jid];
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197 return item and item.ask;
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198 end
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diff changeset
199 function set_contact_pending_out(username, host, jid) -- subscribe
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200 local roster = load_roster(username, host);
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201 local item = roster[jid];
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202 if item and (item.ask or item.subscription == "to" or item.subscription == "both") then
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203 return true;
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204 end
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diff changeset
205 if not item then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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diff changeset
206 item = {subscription = "none", groups = {}};
176
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207 roster[jid] = item;
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208 end
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209 item.ask = "subscribe";
177
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210 log("debug", "set_contact_pending_out: saving roster; set "..username.."@"..host..".roster["..jid.."].ask=subscribe");
176
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211 return datamanager.store(username, host, "roster", roster);
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212 end
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213 function unsubscribe(username, host, jid)
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214 local roster = load_roster(username, host);
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215 local item = roster[jid];
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216 if not item then return false; end
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217 if (item.subscription == "from" or item.subscription == "none") and not item.ask then
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218 return true;
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219 end
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diff changeset
220 item.ask = nil;
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221 if item.subscription == "both" then
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222 item.subscription = "from";
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223 elseif item.subscription == "to" then
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224 item.subscription = "none";
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225 end
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226 return datamanager.store(username, host, "roster", roster);
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227 end
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228 function subscribed(username, host, jid)
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229 if is_contact_pending_in(username, host, jid) then
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230 local roster = load_roster(username, host);
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231 local item = roster[jid];
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232 if item.subscription == "none" then
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233 item.subscription = "from";
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234 else -- subscription == to
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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diff changeset
235 item.subscription = "both";
176
e5cd2a03891d Outbound presence subscription
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diff changeset
236 end
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diff changeset
237 roster.pending[jid] = nil;
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238 -- TODO maybe remove roster.pending if empty
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239 return datamanager.store(username, host, "roster", roster);
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parents: 174
diff changeset
240 end -- TODO else implement optional feature pre-approval (ask = subscribed)
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parents: 174
diff changeset
241 end
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diff changeset
242 function unsubscribed(username, host, jid)
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diff changeset
243 local roster = load_roster(username, host);
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244 local item = roster[jid];
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245 local pending = is_contact_pending_in(username, host, jid);
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diff changeset
246 local changed = nil;
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diff changeset
247 if is_contact_pending_in(username, host, jid) then
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diff changeset
248 roster.pending[jid] = nil; -- TODO maybe delete roster.pending if empty?
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diff changeset
249 changed = true;
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250 end
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parents: 174
diff changeset
251 if item then
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parents: 174
diff changeset
252 if item.subscription == "from" then
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diff changeset
253 item.subscription = "none";
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parents: 174
diff changeset
254 changed = true;
267
6303b7454ad0 Some bugs fixed
Waqas Hussain <waqas20@gmail.com>
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diff changeset
255 elseif item.subscription == "both" then
176
e5cd2a03891d Outbound presence subscription
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diff changeset
256 item.subscription = "to";
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diff changeset
257 changed = true;
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diff changeset
258 end
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diff changeset
259 end
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diff changeset
260 if changed then
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parents: 174
diff changeset
261 return datamanager.store(username, host, "roster", roster);
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diff changeset
262 end
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diff changeset
263 end
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parents: 174
diff changeset
264
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
265 function process_outbound_subscription_request(username, host, jid)
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diff changeset
266 local roster = load_roster(username, host);
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diff changeset
267 local item = roster[jid];
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diff changeset
268 if item and (item.subscription == "none" or item.subscription == "from") then
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diff changeset
269 item.ask = "subscribe";
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diff changeset
270 return datamanager.store(username, host, "roster", roster);
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271 end
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diff changeset
272 end
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diff changeset
273
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diff changeset
274 --[[function process_outbound_subscription_approval(username, host, jid)
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275 local roster = load_roster(username, host);
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diff changeset
276 local item = roster[jid];
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diff changeset
277 if item and (item.subscription == "none" or item.subscription == "from" then
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diff changeset
278 item.ask = "subscribe";
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diff changeset
279 return datamanager.store(username, host, "roster", roster);
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280 end
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281 end]]
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282
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283
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diff changeset
284
80
523ac742cc19 Fixed: rostermanager.lua now returns the module
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diff changeset
285 return _M;