annotate mod_privacy/mod_privacy.lua @ 11:529819205379

do the first real blocking actions
author Thilo Cestonaro <thilo@cestona.ro>
date Sat, 26 Sep 2009 22:22:51 +0200
parents 7d70faba234c
children 14b18ef8b554
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2009 Matthew Wild
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3 -- Copyright (C) 2008-2009 Waqas Hussain
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4 -- Copyright (C) 2009 Thilo Cestonaro
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9
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10 local prosody = prosody;
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11 local helpers = require "util/helpers";
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12 local st = require "util.stanza";
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13 local datamanager = require "util.datamanager";
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14 local bare_sessions = bare_sessions;
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15 local util_Jid = require "util.jid";
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16 local jid_bare = util_Jid.bare;
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17 local jid_split = util_Jid.split;
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19 function findNamedList (privacy_lists, name)
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20 local ret = nil
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21 if privacy_lists.lists == nil then
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22 module:log("debug", "no lists loaded.")
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23 return nil;
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24 end
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25
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26 module:log("debug", "searching for list: %s", name);
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27 for i=1, #privacy_lists.lists do
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28 if privacy_lists.lists[i].name == name then
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29 ret = i;
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30 break;
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31 end
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32 end
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33 return ret;
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34 end
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36 function declineList (privacy_lists, origin, stanza, which)
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37 module:log("info", "User requests to decline the use of privacy list: %s", which);
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38 privacy_lists[which] = nil;
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39 origin.send(st.reply(stanza));
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40 return true;
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41 end
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43 function activateList (privacy_lists, origin, stanza, which, name)
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44 module:log("info", "User requests to change the privacy list: %s, to be list named %s", which, name);
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45 local ret = false;
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46 local idx = findNamedList(privacy_lists, name);
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47
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48 if privacy_lists[which] == nil then
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49 privacy_lists[which] = "";
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50 end
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51
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52 if privacy_lists[which] ~= name and idx ~= nil then
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53 privacy_lists[which] = name;
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54 origin.send(st.reply(stanza));
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55 ret = true;
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56 end
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57 return ret;
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58 end
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59
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60 function deleteList (privacy_lists, origin, stanza, name)
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61 module:log("info", "User requests to delete privacy list: %s", name);
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62 local ret = false;
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63 local idx = findNamedList(privacy_lists, name);
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64
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65 if idx ~= nil then
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66 table.remove(privacy_lists.lists, idx);
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67 origin.send(st.reply(stanza));
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68 ret = true;
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69 end
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70 return ret;
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71 end
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72
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73 local function sortByOrder(a, b)
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74 if a.order < b.order then
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75 return true;
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76 end
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77 return false;
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78 end
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79
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80 function createOrReplaceList (privacy_lists, origin, stanza, name, entries)
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81 module:log("info", "User requests to create / replace list named %s, item count: %d", name, #entries);
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82 local ret = true;
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83 local idx = findNamedList(privacy_lists, name);
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84 local bare_jid = origin.username.."@"..origin.host;
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85
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86 if privacy_lists.lists == nil then
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87 privacy_lists.lists = {};
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88 end
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89
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90 if idx == nil then
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91 idx = #privacy_lists.lists + 1;
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92 end
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93
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94 local list = {};
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95 list.name = name;
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96 list.items = {};
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97
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98 for _,item in ipairs(entries) do
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99 tmp = {};
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100 tmp["type"] = item.attr.type;
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101 tmp["value"] = item.attr.value;
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102 tmp["action"] = item.attr.action;
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103 tmp["order"] = item.attr.order;
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104 tmp["presence-in"] = false;
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105 tmp["presence-out"] = false;
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106 tmp["message"] = false;
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107 tmp["iq"] = false;
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108
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109 if #item.tags > 0 then
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110 for _,tag in ipairs(item.tags) do
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111 tmp[tag.name] = true;
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112 end
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113 end
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114 list.items[#list.items + 1] = tmp;
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115 end
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116
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117 table.sort(list, sortByOrder);
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118
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119 privacy_lists.lists[idx] = list;
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120 origin.send(st.reply(stanza));
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121 if bare_sessions[bare_jid] ~= nil then
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122 iq = st.iq ( { type = "set", id="push1" } );
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123 iq:tag ("query", { xmlns = "jabber:iq:privacy" } );
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124 iq:tag ("list", { name = list.name } ):up();
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125 iq:up();
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126 for resource, session in pairs(bare_sessions[bare_jid].sessions) do
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127 iq.attr.to = bare_jid.."/"..resource
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128 session.send(iq);
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129 end
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130 end
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131 return true;
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132 end
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133
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134 function getList(privacy_lists, origin, stanza, name)
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135 module:log("info", "User requests list named: %s", name or "nil");
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136 local ret = false;
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137 local reply = st.reply(stanza);
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diff changeset
138 reply:tag("query", {xmlns="jabber:iq:privacy"});
8
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diff changeset
139
10
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diff changeset
140 if name == nil then
8
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diff changeset
141 reply:tag("active", {name=privacy_lists.active or ""}):up();
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diff changeset
142 reply:tag("default", {name=privacy_lists.default or ""}):up();
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parents:
diff changeset
143 if privacy_lists.lists then
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diff changeset
144 for _,list in ipairs(privacy_lists.lists) do
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diff changeset
145 reply:tag("list", {name=list.name}):up();
10
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parents: 8
diff changeset
146 end
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diff changeset
147 ret = true;
8
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parents:
diff changeset
148 end
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parents:
diff changeset
149 else
10
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diff changeset
150 local idx = findNamedList(privacy_lists, name);
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151 module:log("debug", "list idx: %d", idx or -1);
10
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diff changeset
152 if idx ~= nil then
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diff changeset
153 list = privacy_lists.lists[idx];
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diff changeset
154 reply = reply:tag("list", {name=list.name});
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parents: 8
diff changeset
155 for _,item in ipairs(list.items) do
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diff changeset
156 reply:tag("item", {type=item.type, value=item.value, action=item.action, order=item.order});
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diff changeset
157 if item["message"] then reply:tag("message"):up(); end
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parents: 8
diff changeset
158 if item["iq"] then reply:tag("iq"):up(); end
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parents: 8
diff changeset
159 if item["presence-in"] then reply:tag("presence-in"):up(); end
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parents: 8
diff changeset
160 if item["presence-out"] then reply:tag("presence-out"):up(); end
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diff changeset
161 reply:up();
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diff changeset
162 end
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diff changeset
163 ret = true;
8
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164 end
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parents:
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165 end
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diff changeset
166
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diff changeset
167 if ret then
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diff changeset
168 origin.send(reply);
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169 end
8
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170 return ret;
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parents:
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171 end
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parents:
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172
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parents:
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173 -- "[tagname]/[target-type]/[payload-namespace]:[payload-tagname]"
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parents:
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174 module:hook("iq/bare/jabber:iq:privacy:query", function(data)
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parents:
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175 local origin, stanza = data.origin, data.stanza;
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176
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diff changeset
177 if stanza.attr.to == nil then -- only service requests to own bare JID
10
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178 local err_reply = nil;
8
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diff changeset
179 local query = stanza.tags[1]; -- the query element
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180 local valid = false;
10
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181 local privacy_lists = datamanager.load(origin.username, origin.host, "privacy") or {};
8
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diff changeset
182
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parents:
diff changeset
183 if stanza.attr.type == "set" then
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
184 if #query.tags >= 1 then
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parents:
diff changeset
185 for _,tag in ipairs(query.tags) do
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parents:
diff changeset
186 if tag.name == "active" or tag.name == "default" then
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parents:
diff changeset
187 if tag.attr.name == nil then -- Client declines the use of active / default list
10
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diff changeset
188 valid = declineList(privacy_lists, origin, stanza, tag.name);
8
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diff changeset
189 else -- Client requests change of active / default list
10
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diff changeset
190 valid = activateList(privacy_lists, origin, stanza, tag.name, tag.attr.name);
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parents: 8
diff changeset
191 err_reply = st.error_reply(stanza, "cancel", "item-not-found");
8
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parents:
diff changeset
192 end
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parents:
diff changeset
193 elseif tag.name == "list" and tag.attr.name then -- Client adds / edits a privacy list
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parents:
diff changeset
194 if #tag.tags == 0 then -- Client removes a privacy list
10
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diff changeset
195 valid = deleteList(privacy_lists, origin, stanza, tag.attr.name);
8
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diff changeset
196 else -- Client edits a privacy list
10
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diff changeset
197 valid = createOrReplaceList(privacy_lists, origin, stanza, tag.attr.name, tag.tags)
8
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parents:
diff changeset
198 end
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parents:
diff changeset
199 end
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
200 end
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
201 end
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
202 elseif stanza.attr.type == "get" then
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parents:
diff changeset
203 local name = nil;
10
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diff changeset
204 local listsToRetrieve = 0;
8
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
205 if #query.tags >= 1 then
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
206 for _,tag in ipairs(query.tags) do
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
207 if tag.name == "list" then -- Client requests a privacy list from server
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parents:
diff changeset
208 name = tag.attr.name;
10
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parents: 8
diff changeset
209 listsToRetrieve = listsToRetrieve + 1;
8
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parents:
diff changeset
210 end
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
211 end
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
212 end
10
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Thilo Cestonaro <thilo@cestona.ro>
parents: 8
diff changeset
213 if listsToRetrieve == 0 or listsToRetrieve == 1 then
7d70faba234c some error reporting during list editing
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parents: 8
diff changeset
214 valid = getList(privacy_lists, origin, stanza, name);
7d70faba234c some error reporting during list editing
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parents: 8
diff changeset
215 err_reply = st.error_reply(stanza, "cancel", "item-not-found");
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parents: 8
diff changeset
216 end
8
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
217 end
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
218
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
219 if valid == false then
10
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Thilo Cestonaro <thilo@cestona.ro>
parents: 8
diff changeset
220 if err_reply == nil then
7d70faba234c some error reporting during list editing
Thilo Cestonaro <thilo@cestona.ro>
parents: 8
diff changeset
221 err_reply = st.error_reply(stanza, "modify", "bad-request");
7d70faba234c some error reporting during list editing
Thilo Cestonaro <thilo@cestona.ro>
parents: 8
diff changeset
222 end
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Thilo Cestonaro <thilo@cestona.ro>
parents: 8
diff changeset
223 origin.send(err_reply);
8
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
224 else
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parents:
diff changeset
225 datamanager.store(origin.username, origin.host, "privacy", privacy_lists);
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parents:
diff changeset
226 end
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
227 return true;
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Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
228 end
10502594a49b adds mod_privacy; lists creating, editing and deletion working.
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
229 return false;
10502594a49b adds mod_privacy; lists creating, editing and deletion working.
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
230 end, 500);
10502594a49b adds mod_privacy; lists creating, editing and deletion working.
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
231
11
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
232 function checkIfNeedToBeBlocked(e, node_, host_)
10
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parents: 8
diff changeset
233 local origin, stanza = e.origin, e.stanza;
11
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diff changeset
234 local privacy_lists = datamanager.load(node_, host_, "privacy") or {};
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diff changeset
235 local bare_jid = node_.."@"..host_;
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Thilo Cestonaro <thilo@cestona.ro>
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diff changeset
236
529819205379 do the first real blocking actions
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parents: 10
diff changeset
237 module:log("debug", "checkIfNeedToBeBlocked: username: %s, host: %s", node_, host_);
529819205379 do the first real blocking actions
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parents: 10
diff changeset
238 module:log("debug", "stanza: %s, to: %s, form: %s", stanza.name, stanza.attr.to or "nil", stanza.attr.from or "nil");
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
239
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
240 if privacy_lists.lists ~= nil and stanza.attr.to ~= nil and stanza.attr.from ~= nil then
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
241 if privacy_lists.active == nil and privacy_lists.default == nil then
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
242 return; -- Nothing to block, default is Allow all
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
243 end
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
244
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
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diff changeset
245 local idx;
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diff changeset
246 local list;
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diff changeset
247 local item;
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diff changeset
248 local block = false;
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diff changeset
249 local apply = false;
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Thilo Cestonaro <thilo@cestona.ro>
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diff changeset
250 local listname = privacy_lists.active;
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
251 if listname == nil then
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
252 listname = privacy_lists.default; -- no active list selected, use default list
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
253 end
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parents: 10
diff changeset
254 idx = findNamedList(privacy_lists, listname);
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
255 if idx == nil then
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
256 module:log("info", "given privacy listname not found.");
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
257 return;
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
258 end
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
259 list = privacy_lists.lists[idx];
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
260 if list == nil then
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
261 module:log("info", "privacy list index wrong.");
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
262 return;
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
263 end
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
264 for _,item in ipairs(list.items) do
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
265 local apply = false;
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
266 block = false;
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
267 if (stanza.name == "message" and item.message) or
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
268 (stanza.name == "iq" and item.iq) or
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
269 (stanza.name == "presence" and jid_bare(stanza.attr.to) == bare_jid and item["presence-in"]) or
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
270 (stanza.name == "presence" and jid_bare(stanza.attr.from) == bare_jid and item["presence-out"]) or
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
271 (item.message == false and item.iq == false and item["presence-in"] == false and item["presence-in"] == false) then
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
272 module:log("debug", "stanza type matched.");
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
273 apply = true;
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
274 end
529819205379 do the first real blocking actions
Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
275 if apply then
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
276 local evilJid = {};
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Thilo Cestonaro <thilo@cestona.ro>
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diff changeset
277 apply = false;
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Thilo Cestonaro <thilo@cestona.ro>
parents: 10
diff changeset
278 if jid_bare(stanza.attr.to) == bare_jid then
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279 evilJid.node, evilJid.host, evilJid.resource = jid_split(stanza.attr.from);
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280 else
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281 evilJid.node, evilJid.host, evilJid.resource = jid_split(stanza.attr.to);
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282 end
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283 if item.type == "jid" and
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284 (evilJid.node and evilJid.host and evilJid.resource and item.value == evilJid.node.."@"..evilJid.host.."/"..evilJid.resource) or
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285 (evilJid.node and evilJid.host and item.value == evilJid.node.."@"..evilJid.host) or
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286 (evilJid.host and evilJid.resource and item.value == evilJid.host.."/"..evilJid.resource) or
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287 (evilJid.host and item.value == evilJid.host) then
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288 module:log("debug", "jid matched.");
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289 apply = true;
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290 block = (item.action == "deny");
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291 elseif item.type == "group" then
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292 local groups = origin.roster[jid_bare(stanza.from)].groups;
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293 for _,group in ipairs(groups) do
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294 if group == item.value then
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295 module:log("debug", "group matched.");
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296 apply = true;
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297 block = (item.action == "deny");
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298 break;
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299 end
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300 end
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301 elseif item.type == "subscription" then
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302 if origin.roster[jid_bare(stanza.from)].subscription == item.value then
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303 module:log("debug", "subscription matched.");
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304 apply = true;
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305 block = (item.action == "deny");
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306 end
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307 elseif item.type == nil then
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308 module:log("debug", "no item.type, so matched.");
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309 apply = true;
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310 block = (item.action == "deny");
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311 end
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312 end
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313 if apply then
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314 if block then
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315 module:log("info", "stanza blocked: %s, to: %s, from: %s", stanza.name, stanza.attr.to or "nil", stanza.attr.from or "nil");
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316 if stanza.name == "message" then
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317 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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318 elseif stanza.name == "iq" and (stanza.attr.type == "get" or stanza.attr.type == "set") then
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319 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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320 end
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321 return true; -- stanza blocked !
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322 else
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323 module:log("info", "stanza explicit allowed!")
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324 end
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325 end
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326 end
10
7d70faba234c some error reporting during list editing
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327 end
11
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328 return;
8
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329 end
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330
11
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331 function preCheckIncoming(e)
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332 if e.stanza.attr.to ~= nil then
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333 local node, host, resource = jid_split(e.stanza.attr.to);
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334 if node == nil or host == nil then
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335 return;
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336 end
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337 return checkIfNeedToBeBlocked(e, node, host);
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338 end
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339 return;
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340 end
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341
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342 function preCheckOutgoing(e)
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343 if e.stanza.attr.from ~= nil then
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344 local node, host, resource = jid_split(e.stanza.attr.from);
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345 if node == nil or host == nil then
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346 return;
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347 end
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348 return checkIfNeedToBeBlocked(e, node, host);
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349 end
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350 return;
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351 end
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352
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353
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354 module:hook("pre-message/full", preCheckOutgoing, 500);
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355 module:hook("pre-message/bare", preCheckOutgoing, 500);
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356 module:hook("pre-message/host", preCheckOutgoing, 500);
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357 module:hook("pre-iq/full", preCheckOutgoing, 500);
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358 module:hook("pre-iq/bare", preCheckOutgoing, 500);
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359 module:hook("pre-iq/host", preCheckOutgoing, 500);
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360 module:hook("pre-presence/full", preCheckOutgoing, 500);
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361 module:hook("pre-presence/bare", preCheckOutgoing, 500);
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362 module:hook("pre-presence/host", preCheckOutgoing, 500);
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363
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364 module:hook("message/full", preCheckIncoming, 500);
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365 module:hook("message/bare", preCheckIncoming, 500);
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366 module:hook("message/host", preCheckIncoming, 500);
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367 module:hook("iq/full", preCheckIncoming, 500);
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diff changeset
368 module:hook("iq/bare", preCheckIncoming, 500);
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diff changeset
369 module:hook("iq/host", preCheckIncoming, 500);
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370 module:hook("presence/full", preCheckIncoming, 500);
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diff changeset
371 module:hook("presence/bare", preCheckIncoming, 500);
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diff changeset
372 module:hook("presence/host", preCheckIncoming, 500);
8
10502594a49b adds mod_privacy; lists creating, editing and deletion working.
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parents:
diff changeset
373
10502594a49b adds mod_privacy; lists creating, editing and deletion working.
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
374 -- helpers.log_events(hosts["albastru.de"].events, "albastru.de");
10502594a49b adds mod_privacy; lists creating, editing and deletion working.
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parents:
diff changeset
375 -- helpers.log_events(prosody.events, "*");
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parents:
diff changeset
376
10502594a49b adds mod_privacy; lists creating, editing and deletion working.
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parents:
diff changeset
377 module:log("info", "mod_privacy loaded ...");