prosody
34280b1544fc
core/rostermanager.lua

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core/rostermanager.lua @ 3109:34280b1544fc

mod_presence: Removed a useless check when handling incoming presence probes and subscriptions.
author Waqas Hussain <waqas20@gmail.com>
date Mon, 24 May 2010 00:04:22 +0500
parent 3090:f14d2962f32c
child 3110:7426727548ed
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9
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10
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12 local log = require "util.logger".init("rostermanager");
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14 local setmetatable = setmetatable;
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15 local format = string.format;
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16 local loadfile, setfenv, pcall = loadfile, setfenv, pcall;
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17 local pairs, ipairs = pairs, ipairs;
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18 local tostring = tostring;
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19
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20 local hosts = hosts;
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21 local bare_sessions = bare_sessions;
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22
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23 local datamanager = require "util.datamanager"
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24 local st = require "util.stanza";
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25
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26 module "rostermanager"
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27
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28 function add_to_roster(session, jid, item)
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29 if session.roster then
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30 local old_item = session.roster[jid];
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31 session.roster[jid] = item;
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32 if save_roster(session.username, session.host) then
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33 return true;
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34 else
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35 session.roster[jid] = old_item;
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36 return nil, "wait", "internal-server-error", "Unable to save roster";
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37 end
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38 else
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39 return nil, "auth", "not-authorized", "Session's roster not loaded";
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40 end
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41 end
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42
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43 function remove_from_roster(session, jid)
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44 if session.roster then
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45 local old_item = session.roster[jid];
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46 session.roster[jid] = nil;
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47 if save_roster(session.username, session.host) then
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48 return true;
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49 else
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50 session.roster[jid] = old_item;
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51 return nil, "wait", "internal-server-error", "Unable to save roster";
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52 end
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53 else
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54 return nil, "auth", "not-authorized", "Session's roster not loaded";
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55 end
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56 end
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57
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58 function roster_push(username, host, jid)
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59 local roster = jid and jid ~= "pending" and hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster;
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60 if roster then
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61 local item = hosts[host].sessions[username].roster[jid];
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62 local stanza = st.iq({type="set"});
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63 stanza:tag("query", {xmlns = "jabber:iq:roster", ver = tostring(roster[false].version or "1") });
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64 if item then
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65 stanza:tag("item", {jid = jid, subscription = item.subscription, name = item.name, ask = item.ask});
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66 for group in pairs(item.groups) do
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67 stanza:tag("group"):text(group):up();
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68 end
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69 else
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70 stanza:tag("item", {jid = jid, subscription = "remove"});
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71 end
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72 stanza:up(); -- move out from item
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73 stanza:up(); -- move out from stanza
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74 -- stanza ready
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75 for _, session in pairs(hosts[host].sessions[username].sessions) do
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76 if session.interested then
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77 -- FIXME do we need to set stanza.attr.to?
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78 session.send(stanza);
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79 end
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80 end
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81 end
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82 end
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83
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84 function load_roster(username, host)
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85 local jid = username.."@"..host;
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86 log("debug", "load_roster: asked for: "..jid);
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87 local user = bare_sessions[jid];
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88 local roster;
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89 if user then
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90 roster = user.roster;
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91 if roster then return roster; end
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92 log("debug", "load_roster: loading for new user: "..username.."@"..host);
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93 else -- Attempt to load roster for non-loaded user
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94 log("debug", "load_roster: loading for offline user: "..username.."@"..host);
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95 end
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96 local data, err = datamanager.load(username, host, "roster");
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97 roster = data or {};
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98 if user then user.roster = roster; end
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99 if not roster[false] then roster[false] = { }; end
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100 if roster[jid] then
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101 roster[jid] = nil;
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102 log("warn", "roster for "..jid.." has a self-contact");
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103 end
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104 if not err then
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105 hosts[host].events.fire_event("roster-load", username, host, roster);
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106 end
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107 return roster, err;
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108 end
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109
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110 function save_roster(username, host, roster)
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111 log("debug", "save_roster: saving roster for "..username.."@"..host);
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112 if not roster then
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113 roster = hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster;
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114 --if not roster then
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115 -- --roster = load_roster(username, host);
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116 -- return true; -- roster unchanged, no reason to save
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117 --end
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118 end
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119 if roster then
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120 local metadata = roster[false];
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121 if not metadata then
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122 metadata = {};
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123 roster[false] = metadata;
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124 end
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125 if metadata.version ~= true then
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126 metadata.version = (metadata.version or 0) + 1;
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127 end
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128 return datamanager.store(username, host, "roster", roster);
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129 end
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130 log("warn", "save_roster: user had no roster to save");
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131 return nil;
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matthew
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diff changeset
132 end
80
523ac742cc19 Fixed: rostermanager.lua now returns the module
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133
171
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diff changeset
134 function process_inbound_subscription_approval(username, host, jid)
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diff changeset
135 local roster = load_roster(username, host);
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diff changeset
136 local item = roster[jid];
176
e5cd2a03891d Outbound presence subscription
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diff changeset
137 if item and item.ask then
171
28f420d057a0 Inbound subscription approval
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parents: 132
diff changeset
138 if item.subscription == "none" then
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parents: 132
diff changeset
139 item.subscription = "to";
176
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diff changeset
140 else -- subscription == from
171
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parents: 132
diff changeset
141 item.subscription = "both";
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parents: 132
diff changeset
142 end
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parents: 132
diff changeset
143 item.ask = nil;
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1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
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diff changeset
144 return save_roster(username, host, roster);
171
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diff changeset
145 end
28f420d057a0 Inbound subscription approval
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parents: 132
diff changeset
146 end
28f420d057a0 Inbound subscription approval
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diff changeset
147
172
71247788c7c7 Inbound subscription cancellation
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diff changeset
148 function process_inbound_subscription_cancellation(username, host, jid)
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149 local roster = load_roster(username, host);
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diff changeset
150 local item = roster[jid];
176
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151 local changed = nil;
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diff changeset
152 if is_contact_pending_out(username, host, jid) then
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153 item.ask = nil;
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154 changed = true;
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155 end
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parents: 174
diff changeset
156 if item then
172
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parents: 171
diff changeset
157 if item.subscription == "to" then
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parents: 171
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158 item.subscription = "none";
176
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159 changed = true;
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parents: 174
diff changeset
160 elseif item.subscription == "both" then
172
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diff changeset
161 item.subscription = "from";
176
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162 changed = true;
172
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diff changeset
163 end
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
164 end
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parents: 174
diff changeset
165 if changed then
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1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
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diff changeset
166 return save_roster(username, host, roster);
172
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diff changeset
167 end
71247788c7c7 Inbound subscription cancellation
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parents: 171
diff changeset
168 end
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parents: 171
diff changeset
169
173
f3a2af4d2ff2 Inbound unsubscribe
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parents: 172
diff changeset
170 function process_inbound_unsubscribe(username, host, jid)
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parents: 172
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171 local roster = load_roster(username, host);
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172 local item = roster[jid];
176
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173 local changed = nil;
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parents: 174
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174 if is_contact_pending_in(username, host, jid) then
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parents: 174
diff changeset
175 roster.pending[jid] = nil; -- TODO maybe delete roster.pending if empty?
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176 changed = true;
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parents: 174
diff changeset
177 end
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parents: 174
diff changeset
178 if item then
173
f3a2af4d2ff2 Inbound unsubscribe
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parents: 172
diff changeset
179 if item.subscription == "from" then
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parents: 172
diff changeset
180 item.subscription = "none";
176
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181 changed = true;
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parents: 174
diff changeset
182 elseif item.subscription == "both" then
173
f3a2af4d2ff2 Inbound unsubscribe
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parents: 172
diff changeset
183 item.subscription = "to";
176
e5cd2a03891d Outbound presence subscription
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diff changeset
184 changed = true;
173
f3a2af4d2ff2 Inbound unsubscribe
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parents: 172
diff changeset
185 end
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
186 end
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parents: 174
diff changeset
187 if changed then
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1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
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diff changeset
188 return save_roster(username, host, roster);
173
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parents: 172
diff changeset
189 end
f3a2af4d2ff2 Inbound unsubscribe
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parents: 172
diff changeset
190 end
f3a2af4d2ff2 Inbound unsubscribe
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parents: 172
diff changeset
191
174
f9aff1fc7e99 Inbound subscription request
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parents: 173
diff changeset
192 function is_contact_subscribed(username, host, jid)
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parents: 173
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193 local roster = load_roster(username, host);
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194 local item = roster[jid];
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diff changeset
195 return item and (item.subscription == "from" or item.subscription == "both");
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parents: 173
diff changeset
196 end
f9aff1fc7e99 Inbound subscription request
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parents: 173
diff changeset
197
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
198 function is_contact_pending_in(username, host, jid)
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diff changeset
199 local roster = load_roster(username, host);
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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diff changeset
200 return roster.pending and roster.pending[jid];
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
201 end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
202 function set_contact_pending_in(username, host, jid, pending)
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diff changeset
203 local roster = load_roster(username, host);
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diff changeset
204 local item = roster[jid];
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diff changeset
205 if item and (item.subscription == "from" or item.subscription == "both") then
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diff changeset
206 return; -- false
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diff changeset
207 end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
208 if not roster.pending then roster.pending = {}; end
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diff changeset
209 roster.pending[jid] = true;
1898
1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
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parents: 1897
diff changeset
210 return save_roster(username, host, roster);
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
211 end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
212 function is_contact_pending_out(username, host, jid)
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parents: 174
diff changeset
213 local roster = load_roster(username, host);
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diff changeset
214 local item = roster[jid];
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parents: 174
diff changeset
215 return item and item.ask;
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
216 end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
217 function set_contact_pending_out(username, host, jid) -- subscribe
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parents: 174
diff changeset
218 local roster = load_roster(username, host);
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parents: 174
diff changeset
219 local item = roster[jid];
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parents: 174
diff changeset
220 if item and (item.ask or item.subscription == "to" or item.subscription == "both") then
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
221 return true;
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
222 end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
223 if not item then
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
224 item = {subscription = "none", groups = {}};
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
225 roster[jid] = item;
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
226 end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
227 item.ask = "subscribe";
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
228 log("debug", "set_contact_pending_out: saving roster; set "..username.."@"..host..".roster["..jid.."].ask=subscribe");
1898
1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
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diff changeset
229 return save_roster(username, host, roster);
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
230 end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
231 function unsubscribe(username, host, jid)
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
232 local roster = load_roster(username, host);
e5cd2a03891d Outbound presence subscription
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diff changeset
233 local item = roster[jid];
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
234 if not item then return false; end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
235 if (item.subscription == "from" or item.subscription == "none") and not item.ask then
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
236 return true;
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
237 end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
238 item.ask = nil;
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
239 if item.subscription == "both" then
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
240 item.subscription = "from";
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
241 elseif item.subscription == "to" then
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
242 item.subscription = "none";
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
243 end
1898
1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
Waqas Hussain <waqas20@gmail.com>
parents: 1897
diff changeset
244 return save_roster(username, host, roster);
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
245 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
246 function subscribed(username, host, jid)
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
247 if is_contact_pending_in(username, host, jid) then
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
248 local roster = load_roster(username, host);
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
249 local item = roster[jid];
925
4861bcf0afa4 Fixed: rostermanager: Create new roster item if one doesn't exist on subscription approval (fixes issue #77)
Waqas Hussain <waqas20@gmail.com>
parents: 916
diff changeset
250 if not item then -- FIXME should roster item be auto-created?
4861bcf0afa4 Fixed: rostermanager: Create new roster item if one doesn't exist on subscription approval (fixes issue #77)
Waqas Hussain <waqas20@gmail.com>
parents: 916
diff changeset
251 item = {subscription = "none", groups = {}};
4861bcf0afa4 Fixed: rostermanager: Create new roster item if one doesn't exist on subscription approval (fixes issue #77)
Waqas Hussain <waqas20@gmail.com>
parents: 916
diff changeset
252 roster[jid] = item;
4861bcf0afa4 Fixed: rostermanager: Create new roster item if one doesn't exist on subscription approval (fixes issue #77)
Waqas Hussain <waqas20@gmail.com>
parents: 916
diff changeset
253 end
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
254 if item.subscription == "none" then
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
255 item.subscription = "from";
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
256 else -- subscription == to
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
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parents: 176
diff changeset
257 item.subscription = "both";
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
258 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
259 roster.pending[jid] = nil;
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
260 -- TODO maybe remove roster.pending if empty
1898
1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
Waqas Hussain <waqas20@gmail.com>
parents: 1897
diff changeset
261 return save_roster(username, host, roster);
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
262 end -- TODO else implement optional feature pre-approval (ask = subscribed)
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
263 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
264 function unsubscribed(username, host, jid)
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
265 local roster = load_roster(username, host);
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
266 local item = roster[jid];
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
267 local pending = is_contact_pending_in(username, host, jid);
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parents: 174
diff changeset
268 local changed = nil;
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
269 if is_contact_pending_in(username, host, jid) then
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
270 roster.pending[jid] = nil; -- TODO maybe delete roster.pending if empty?
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parents: 174
diff changeset
271 changed = true;
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
272 end
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
273 if item then
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
274 if item.subscription == "from" then
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
275 item.subscription = "none";
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parents: 174
diff changeset
276 changed = true;
267
6303b7454ad0 Some bugs fixed
Waqas Hussain <waqas20@gmail.com>
parents: 193
diff changeset
277 elseif item.subscription == "both" then
176
e5cd2a03891d Outbound presence subscription
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parents: 174
diff changeset
278 item.subscription = "to";
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parents: 174
diff changeset
279 changed = true;
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
280 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
281 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
282 if changed then
1898
1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
Waqas Hussain <waqas20@gmail.com>
parents: 1897
diff changeset
283 return save_roster(username, host, roster);
176
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
284 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
285 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
286
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
287 function process_outbound_subscription_request(username, host, jid)
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
288 local roster = load_roster(username, host);
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
289 local item = roster[jid];
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
290 if item and (item.subscription == "none" or item.subscription == "from") then
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
291 item.ask = "subscribe";
1898
1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
Waqas Hussain <waqas20@gmail.com>
parents: 1897
diff changeset
292 return save_roster(username, host, roster);
176
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
293 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
294 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
295
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
296 --[[function process_outbound_subscription_approval(username, host, jid)
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
297 local roster = load_roster(username, host);
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
298 local item = roster[jid];
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
299 if item and (item.subscription == "none" or item.subscription == "from" then
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
300 item.ask = "subscribe";
1898
1ce02e2f5a3f rostermanager: Fixed: Roster version was not being properly updated in some edge cases.
Waqas Hussain <waqas20@gmail.com>
parents: 1897
diff changeset
301 return save_roster(username, host, roster);
176
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
302 end
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
303 end]]
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
304
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
305
e5cd2a03891d Outbound presence subscription
Waqas Hussain <waqas20@gmail.com>
parents: 174
diff changeset
306
916
f0743928ef7e core.rostermanager/mod_roster: Support for roster versioning
Matthew Wild <mwild1@gmail.com>
parents: 896
diff changeset
307 return _M;