prosody
f3a2af4d2ff2
core/rostermanager.lua

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core/rostermanager.lua @ 173:f3a2af4d2ff2

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author Waqas Hussain <waqas20@gmail.com>
date Sat, 25 Oct 2008 02:38:24 +0500
parent 172:71247788c7c7
child 174:f9aff1fc7e99
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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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11
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12 local hosts = hosts;
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14 require "util.datamanager"
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15
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16 local datamanager = datamanager;
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17 local st = require "util.stanza";
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18
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19 module "rostermanager"
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20
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21 function add_to_roster(session, jid, item)
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22 if session.roster then
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23 local old_item = session.roster[jid];
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24 session.roster[jid] = item;
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25 if save_roster(session.username, session.host) then
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26 return true;
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27 else
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28 session.roster[jid] = old_item;
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29 return nil, "wait", "internal-server-error", "Unable to save roster";
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30 end
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31 else
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32 return nil, "auth", "not-authorized", "Session's roster not loaded";
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33 end
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34 end
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35
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36 function remove_from_roster(session, jid)
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37 if session.roster then
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38 local old_item = session.roster[jid];
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39 session.roster[jid] = nil;
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40 if save_roster(session.username, session.host) then
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41 return true;
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42 else
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43 session.roster[jid] = old_item;
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44 return nil, "wait", "internal-server-error", "Unable to save roster";
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45 end
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46 else
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47 return nil, "auth", "not-authorized", "Session's roster not loaded";
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48 end
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49 end
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50
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51 function roster_push(username, host, jid)
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52 if hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster then
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53 local item = hosts[host].sessions[username].roster[jid];
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54 local stanza = st.iq({type="set"});
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55 stanza:tag("query", {xmlns = "jabber:iq:roster"});
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56 if item then
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57 stanza:tag("item", {jid = jid, subscription = item.subscription, name = item.name, ask = item.ask});
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58 for group in pairs(item.groups) do
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59 stanza:tag("group"):text(group):up();
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60 end
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61 else
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62 stanza:tag("item", {jid = jid, subscription = "remove"});
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63 end
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64 stanza:up();
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65 stanza:up();
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66 -- stanza ready
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67 for _, session in pairs(hosts[host].sessions[username].sessions) do
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68 if session.interested then
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69 -- FIXME do we need to set stanza.attr.to?
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70 session.send(stanza);
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71 end
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72 end
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73 end
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74 end
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75
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76 function load_roster(username, host)
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77 if hosts[host] and hosts[host].sessions[username] then
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78 local roster = hosts[host].sessions[username].roster;
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79 if not roster then
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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 return datamanager.load(username, host, "roster") or {};
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87 end
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88
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89 function save_roster(username, host)
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90 if hosts[host] and hosts[host].sessions[username] and hosts[host].sessions[username].roster then
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91 return datamanager.store(username, host, "roster", hosts[host].sessions[username].roster);
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92 end
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93 return nil;
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94 end
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95
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96 function process_inbound_subscription_approval(username, host, jid)
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97 local roster = load_roster(username, host);
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98 local item = roster[jid];
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99 if item and item.ask and (item.subscription == "none" or item.subscription == "from") then
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100 if item.subscription == "none" then
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101 item.subscription = "to";
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102 else
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103 item.subscription = "both";
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104 end
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105 item.ask = nil;
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106 return datamanager.store(username, host, "roster", roster);
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107 end
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108 end
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109
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110 function process_inbound_subscription_cancellation(username, host, jid)
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111 local roster = load_roster(username, host);
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112 local item = roster[jid];
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113 if item and (item.subscription == "to" or item.subscription == "both") then
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114 if item.subscription == "to" then
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115 item.subscription = "none";
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116 else
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117 item.subscription = "from";
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118 end
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119 -- FIXME do we need to item.ask = nil;?
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120 return datamanager.store(username, host, "roster", roster);
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121 end
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122 end
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123
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124 function process_inbound_unsubscribe(username, host, jid)
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125 local roster = load_roster(username, host);
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126 local item = roster[jid];
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127 if item and (item.subscription == "from" or item.subscription == "both") then
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128 if item.subscription == "from" then
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129 item.subscription = "none";
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130 else
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131 item.subscription = "to";
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132 end
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133 item.ask = nil;
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134 return datamanager.store(username, host, "roster", roster);
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135 end
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136 end
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137
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138 return _M;