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1 | -- Prosody IM v0.1 |
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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 | |
0 | 21 | |
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22 | |
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23 | local log = require "util.logger".init("rostermanager"); |
0 | 24 | |
25 | local setmetatable = setmetatable; | |
26 | local format = string.format; | |
27 | local loadfile, setfenv, pcall = loadfile, setfenv, pcall; | |
110 | 28 | local pairs, ipairs = pairs, ipairs; |
0 | 29 | |
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30 | local hosts = hosts; |
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31 | |
183 | 32 | local datamanager = require "util.datamanager" |
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33 | local st = require "util.stanza"; |
0 | 34 | |
35 | module "rostermanager" | |
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 |
132 | 73 | stanza:tag("item", {jid = jid, subscription = item.subscription, name = item.name, ask = item.ask}); |
110 | 74 | for group in pairs(item.groups) do |
75 | stanza:tag("group"):text(group):up(); | |
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 |
193 | 80 | stanza:up(); -- move out from item |
81 | stanza:up(); -- move out from stanza | |
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82 | -- stanza ready |
110 | 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? |
110 | 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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107 | |
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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 |
110 | 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; |
0 | 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 |
172
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139 | if item.subscription == "to" then |
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140 | item.subscription = "none"; |
176
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141 | changed = true; |
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142 | elseif item.subscription == "both" then |
172
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143 | item.subscription = "from"; |
176
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144 | changed = true; |
172
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145 | end |
176
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146 | end |
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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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150 | end |
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151 | |
173 | 152 | function process_inbound_unsubscribe(username, host, jid) |
153 | local roster = load_roster(username, host); | |
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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160 | if item then |
173 | 161 | if item.subscription == "from" then |
162 | item.subscription = "none"; | |
176
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163 | changed = true; |
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164 | elseif item.subscription == "both" then |
173 | 165 | item.subscription = "to"; |
176
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166 | changed = true; |
173 | 167 | end |
176
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168 | end |
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169 | if changed then |
173 | 170 | return datamanager.store(username, host, "roster", roster); |
171 | end | |
172 | end | |
173 | ||
174
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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); |
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182 | return roster.pending and roster.pending[jid]; |
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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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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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205 | if not item then |
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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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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
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235 | item.subscription = "both"; |
176
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236 | end |
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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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240 | end -- TODO else implement optional feature pre-approval (ask = subscribed) |
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241 | end |
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242 | function unsubscribed(username, host, jid) |
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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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246 | local changed = nil; |
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247 | if is_contact_pending_in(username, host, jid) then |
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248 | roster.pending[jid] = nil; -- TODO maybe delete roster.pending if empty? |
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249 | changed = true; |
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250 | end |
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251 | if item then |
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252 | if item.subscription == "from" then |
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253 | item.subscription = "none"; |
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254 | changed = true; |
267 | 255 | elseif item.subscription == "both" then |
176
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256 | item.subscription = "to"; |
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257 | changed = true; |
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258 | end |
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259 | end |
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260 | if changed then |
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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 | function process_outbound_subscription_request(username, host, jid) |
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266 | local roster = load_roster(username, host); |
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267 | local item = roster[jid]; |
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268 | if item and (item.subscription == "none" or item.subscription == "from") then |
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269 | item.ask = "subscribe"; |
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270 | return datamanager.store(username, host, "roster", roster); |
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271 | end |
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272 | end |
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273 | |
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274 | --[[function process_outbound_subscription_approval(username, host, jid) |
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275 | local roster = load_roster(username, host); |
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276 | local item = roster[jid]; |
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277 | if item and (item.subscription == "none" or item.subscription == "from" then |
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278 | item.ask = "subscribe"; |
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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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284 | |
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Fixed: rostermanager.lua now returns the module
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285 | return _M; |