prosody
0129ffcaa7ab
plugins/mod_pep.lua

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plugins/mod_pep.lua @ 6864:0129ffcaa7ab

mod_pep: Document data structures, so I don't have to spend time remembering every time I work on this module
author Matthew Wild <mwild1@gmail.com>
date Fri, 04 Sep 2015 11:26:51 +0100
parent 5804:bb27ba619932
child 6865:20b0f0b48655
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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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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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10 local jid_bare = require "util.jid".bare;
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11 local jid_split = require "util.jid".split;
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12 local st = require "util.stanza";
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13 local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed;
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14 local pairs = pairs;
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15 local next = next;
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16 local type = type;
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17 local calculate_hash = require "util.caps".calculate_hash;
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18 local core_post_stanza = prosody.core_post_stanza;
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19
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20 -- Used as canonical 'empty table'
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21 local NULL = {};
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22 -- data[user_bare_jid][node] = item_stanza
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23 local data = {};
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24 --- recipients[user_bare_jid][contact_full_jid][subscribed_node] = true
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25 local recipients = {};
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26 -- hash_map[hash][subscribed_nodes] = true
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27 local hash_map = {};
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28
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29 module.save = function()
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30 return { data = data, recipients = recipients, hash_map = hash_map };
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31 end
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32 module.restore = function(state)
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33 data = state.data or {};
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34 recipients = state.recipients or {};
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35 hash_map = state.hash_map or {};
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36 end
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37
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38 module:add_identity("pubsub", "pep", module:get_option_string("name", "Prosody"));
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39 module:add_feature("http://jabber.org/protocol/pubsub#publish");
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40
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41 local function subscription_presence(user_bare, recipient)
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42 local recipient_bare = jid_bare(recipient);
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43 if (recipient_bare == user_bare) then return true end
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44 local username, host = jid_split(user_bare);
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45 return is_contact_subscribed(username, host, recipient_bare);
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46 end
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47
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48 local function publish(session, node, id, item)
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49 item.attr.xmlns = nil;
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50 local disable = #item.tags ~= 1 or #item.tags[1] == 0;
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51 if #item.tags == 0 then item.name = "retract"; end
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52 local bare = session.username..'@'..session.host;
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53 local stanza = st.message({from=bare, type='headline'})
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54 :tag('event', {xmlns='http://jabber.org/protocol/pubsub#event'})
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55 :tag('items', {node=node})
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56 :add_child(item)
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57 :up()
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58 :up();
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59
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60 -- store for the future
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61 local user_data = data[bare];
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62 if disable then
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63 if user_data then
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64 user_data[node] = nil;
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65 if not next(user_data) then data[bare] = nil; end
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66 end
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67 else
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68 if not user_data then user_data = {}; data[bare] = user_data; end
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69 user_data[node] = {id, item};
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70 end
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71
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72 -- broadcast
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73 for recipient, notify in pairs(recipients[bare] or NULL) do
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74 if notify[node] then
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75 stanza.attr.to = recipient;
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76 core_post_stanza(session, stanza);
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77 end
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78 end
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79 end
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80 local function publish_all(user, recipient, session)
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81 local d = data[user];
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82 local notify = recipients[user] and recipients[user][recipient];
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83 if d and notify then
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84 for node in pairs(notify) do
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85 if d[node] then
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86 local id, item = unpack(d[node]);
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87 session.send(st.message({from=user, to=recipient, type='headline'})
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88 :tag('event', {xmlns='http://jabber.org/protocol/pubsub#event'})
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89 :tag('items', {node=node})
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90 :add_child(item)
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91 :up()
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92 :up());
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93 end
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94 end
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95 end
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96 end
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97
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98 local function get_caps_hash_from_presence(stanza, current)
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99 local t = stanza.attr.type;
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100 if not t then
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101 for _, child in pairs(stanza.tags) do
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102 if child.name == "c" and child.attr.xmlns == "http://jabber.org/protocol/caps" then
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103 local attr = child.attr;
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104 if attr.hash then -- new caps
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105 if attr.hash == 'sha-1' and attr.node and attr.ver then return attr.ver, attr.node.."#"..attr.ver; end
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106 else -- legacy caps
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107 if attr.node and attr.ver then return attr.node.."#"..attr.ver.."#"..(attr.ext or ""), attr.node.."#"..attr.ver; end
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108 end
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109 return; -- bad caps format
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110 end
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111 end
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112 elseif t == "unavailable" or t == "error" then
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113 return;
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114 end
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115 return current; -- no caps, could mean caps optimization, so return current
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116 end
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117
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118 module:hook("presence/bare", function(event)
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119 -- inbound presence to bare JID recieved
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120 local origin, stanza = event.origin, event.stanza;
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121 local user = stanza.attr.to or (origin.username..'@'..origin.host);
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122 local t = stanza.attr.type;
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123 local self = not stanza.attr.to;
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124
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125 if not t then -- available presence
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126 if self or subscription_presence(user, stanza.attr.from) then
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Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
127 local recipient = stanza.attr.from;
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
128 local current = recipients[user] and recipients[user][recipient];
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
129 local hash = get_caps_hash_from_presence(stanza, current);
4207
06eb75d071ec mod_pep: Fix comparison between incoming hash and the cached hash for a JID, fixes repeated PEP events on presence (fixes #225)
Matthew Wild <mwild1@gmail.com>
parents: 3738
diff changeset
130 if current == hash or (current and current == hash_map[hash]) then return; end
3132
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
131 if not hash then
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
132 if recipients[user] then recipients[user][recipient] = nil; end
1439
f989608964ec mod_pep: Use cached caps
Waqas Hussain <waqas20@gmail.com>
parents: 1437
diff changeset
133 else
3132
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
134 recipients[user] = recipients[user] or {};
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
135 if hash_map[hash] then
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
136 recipients[user][recipient] = hash_map[hash];
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
137 publish_all(user, recipient, origin);
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
138 else
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
139 recipients[user][recipient] = hash;
3738
ae2ac97b23b1 mod_pep: Fixed a traceback when non-local users send presence.
Waqas Hussain <waqas20@gmail.com>
parents: 3737
diff changeset
140 local from_bare = origin.type == "c2s" and origin.username.."@"..origin.host;
3737
659563b1db89 mod_pep: Handle the case where local contacts send directed presence with caps hash.
Waqas Hussain <waqas20@gmail.com>
parents: 3668
diff changeset
141 if self or origin.type ~= "c2s" or (recipients[from_bare] and recipients[from_bare][origin.full_jid]) ~= hash then
5804
bb27ba619932 mod_pep: Update COMPAT comment, it seems Asterisk 1.8 also suffers from this issue (thanks Lonnie Abelbeck)
Matthew Wild <mwild1@gmail.com>
parents: 5682
diff changeset
142 -- COMPAT from ~= stanza.attr.to because OneTeam and Asterisk 1.8 can't deal with missing from attribute
3664
345cd1e04e80 mod_pep: Optimised PEP requests for disco info on caps change (issue #150).
Waqas Hussain <waqas20@gmail.com>
parents: 3648
diff changeset
143 origin.send(
4394
676b0845eae4 mod_pep: Always include a 'from' attribute on service discovery requests to local clients (compatibility fix for OneTeam).
Waqas Hussain <waqas20@gmail.com>
parents: 4207
diff changeset
144 st.stanza("iq", {from=user, to=stanza.attr.from, id="disco", type="get"})
3664
345cd1e04e80 mod_pep: Optimised PEP requests for disco info on caps change (issue #150).
Waqas Hussain <waqas20@gmail.com>
parents: 3648
diff changeset
145 :query("http://jabber.org/protocol/disco#info")
345cd1e04e80 mod_pep: Optimised PEP requests for disco info on caps change (issue #150).
Waqas Hussain <waqas20@gmail.com>
parents: 3648
diff changeset
146 );
345cd1e04e80 mod_pep: Optimised PEP requests for disco info on caps change (issue #150).
Waqas Hussain <waqas20@gmail.com>
parents: 3648
diff changeset
147 end
3132
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
148 end
1439
f989608964ec mod_pep: Use cached caps
Waqas Hussain <waqas20@gmail.com>
parents: 1437
diff changeset
149 end
1325
b58645973d7d mod_pep: Send items to contacts coming online
Waqas Hussain <waqas20@gmail.com>
parents: 1324
diff changeset
150 end
3132
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
151 elseif t == "unavailable" then
4d2251242ac1 mod_pep: Corrected and optimized handling of non-available presence stanzas.
Waqas Hussain <waqas20@gmail.com>
parents: 3130
diff changeset
152 if recipients[user] then recipients[user][stanza.attr.from] = nil; end
3668
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
153 elseif not self and t == "unsubscribe" then
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
154 local from = jid_bare(stanza.attr.from);
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
155 local subscriptions = recipients[user];
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
156 if subscriptions then
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
157 for subscriber in pairs(subscriptions) do
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
158 if jid_bare(subscriber) == from then
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
159 recipients[user][subscriber] = nil;
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
160 end
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
161 end
29a340777d7b mod_pep: Remove PEP subscriptions on getting a presence unsubscribe.
Waqas Hussain <waqas20@gmail.com>
parents: 3667
diff changeset
162 end
1325
b58645973d7d mod_pep: Send items to contacts coming online
Waqas Hussain <waqas20@gmail.com>
parents: 1324
diff changeset
163 end
1327
20285e9d71ee mod_pep: Give the presence handler a higher than default priority
Waqas Hussain <waqas20@gmail.com>
parents: 1325
diff changeset
164 end, 10);
1325
b58645973d7d mod_pep: Send items to contacts coming online
Waqas Hussain <waqas20@gmail.com>
parents: 1324
diff changeset
165
1404
12abd2da8885 mod_pep: Use new style events
Waqas Hussain <waqas20@gmail.com>
parents: 1402
diff changeset
166 module:hook("iq/bare/http://jabber.org/protocol/pubsub:pubsub", function(event)
12abd2da8885 mod_pep: Use new style events
Waqas Hussain <waqas20@gmail.com>
parents: 1402
diff changeset
167 local session, stanza = event.origin, event.stanza;
2327
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
168 local payload = stanza.tags[1];
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
169
1136
506012db54e8 mod_pep: Initial commit (extremely basic implementation)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
170 if stanza.attr.type == 'set' and (not stanza.attr.to or jid_bare(stanza.attr.from) == stanza.attr.to) then
2327
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
171 payload = payload.tags[1];
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
172 if payload and (payload.name == 'publish' or payload.name == 'retract') and payload.attr.node then -- <publish node='http://jabber.org/protocol/tune'>
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
173 local node = payload.attr.node;
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
174 payload = payload.tags[1];
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
175 if payload and payload.name == "item" then -- <item>
5682
e7b9ba2d0638 mod_pep: When a client supplies no id on a published item, reflect our generated id back to it
Florian Zeitz <florob@babelmonkeys.de>
parents: 5170
diff changeset
176 local id = payload.attr.id or "1";
e7b9ba2d0638 mod_pep: When a client supplies no id on a published item, reflect our generated id back to it
Florian Zeitz <florob@babelmonkeys.de>
parents: 5170
diff changeset
177 payload.attr.id = id;
2327
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
178 session.send(st.reply(stanza));
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
179 publish(session, node, id, st.clone(payload));
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
180 return true;
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
181 end
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
182 end
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
183 elseif stanza.attr.type == 'get' then
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
184 local user = stanza.attr.to and jid_bare(stanza.attr.to) or session.username..'@'..session.host;
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
185 if subscription_presence(user, stanza.attr.from) then
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
186 local user_data = data[user];
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
187 local node, requested_id;
1136
506012db54e8 mod_pep: Initial commit (extremely basic implementation)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
188 payload = payload.tags[1];
2327
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
189 if payload and payload.name == 'items' then
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
190 node = payload.attr.node;
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
191 local item = payload.tags[1];
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
192 if item and item.name == "item" then
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
193 requested_id = item.attr.id;
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
194 end
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
195 end
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
196 if node and user_data and user_data[node] then -- Send the last item
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
197 local id, item = unpack(user_data[node]);
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
198 if not requested_id or id == requested_id then
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
199 local stanza = st.reply(stanza)
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
200 :tag('pubsub', {xmlns='http://jabber.org/protocol/pubsub'})
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
201 :tag('items', {node=node})
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
202 :add_child(item)
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
203 :up()
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
204 :up();
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
205 session.send(stanza);
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
206 return true;
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
207 else -- requested item doesn't exist
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
208 local stanza = st.reply(stanza)
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
209 :tag('pubsub', {xmlns='http://jabber.org/protocol/pubsub'})
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
210 :tag('items', {node=node})
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
211 :up();
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
212 session.send(stanza);
1136
506012db54e8 mod_pep: Initial commit (extremely basic implementation)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
213 return true;
1425
8187f72b7425 mod_pep: Removed some YODO comments
Waqas Hussain <waqas20@gmail.com>
parents: 1424
diff changeset
214 end
2327
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
215 elseif node then -- node doesn't exist
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
216 session.send(st.error_reply(stanza, 'cancel', 'item-not-found'));
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
217 return true;
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
218 else --invalid request
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
219 session.send(st.error_reply(stanza, 'modify', 'bad-request'));
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
220 return true;
1425
8187f72b7425 mod_pep: Removed some YODO comments
Waqas Hussain <waqas20@gmail.com>
parents: 1424
diff changeset
221 end
2327
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
222 else --no presence subscription
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
223 session.send(st.error_reply(stanza, 'auth', 'not-authorized')
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
224 :tag('presence-subscription-required', {xmlns='http://jabber.org/protocol/pubsub#errors'}));
5839f303addf mod_pep: Support item retrieval use cases
Paul Aurich <paul@darkrain42.org>
parents: 2326
diff changeset
225 return true;
1136
506012db54e8 mod_pep: Initial commit (extremely basic implementation)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
226 end
506012db54e8 mod_pep: Initial commit (extremely basic implementation)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
227 end
506012db54e8 mod_pep: Initial commit (extremely basic implementation)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
228 end);
506012db54e8 mod_pep: Initial commit (extremely basic implementation)
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
229
3648
c0148fddd81f mod_pep: Updated disco#info result handler to use new event name format.
Waqas Hussain <waqas20@gmail.com>
parents: 3344
diff changeset
230 module:hook("iq-result/bare/disco", function(event)
1424
6969ad97ca58 mod_pep: Added handler for disco responses
Waqas Hussain <waqas20@gmail.com>
parents: 1404
diff changeset
231 local session, stanza = event.origin, event.stanza;
6969ad97ca58 mod_pep: Added handler for disco responses
Waqas Hussain <waqas20@gmail.com>
parents: 1404
diff changeset
232 if stanza.attr.type == "result" then
6969ad97ca58 mod_pep: Added handler for disco responses
Waqas Hussain <waqas20@gmail.com>
parents: 1404
diff changeset
233 local disco = stanza.tags[1];
6969ad97ca58 mod_pep: Added handler for disco responses
Waqas Hussain <waqas20@gmail.com>
parents: 1404
diff changeset
234 if disco and disco.name == "query" and disco.attr.xmlns == "http://jabber.org/protocol/disco#info" then
6969ad97ca58 mod_pep: Added handler for disco responses
Waqas Hussain <waqas20@gmail.com>
parents: 1404
diff changeset
235 -- Process disco response
3664
345cd1e04e80 mod_pep: Optimised PEP requests for disco info on caps change (issue #150).
Waqas Hussain <waqas20@gmail.com>
parents: 3648
diff changeset
236 local self = not stanza.attr.to;
1437
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
237 local user = stanza.attr.to or (session.username..'@'..session.host);
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
238 local contact = stanza.attr.from;
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
239 local current = recipients[user] and recipients[user][contact];
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
240 if type(current) ~= "string" then return; end -- check if waiting for recipient's response
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
241 local ver = current;
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
242 if not string.find(current, "#") then
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
243 ver = calculate_hash(disco.tags); -- calculate hash
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
244 end
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
245 local notify = {};
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
246 for _, feature in pairs(disco.tags) do
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
247 if feature.name == "feature" and feature.attr.var then
1461
51f0202b0868 mod_pep: Escape + in pattern
Matthew Wild <mwild1@gmail.com>
parents: 1457
diff changeset
248 local nfeature = feature.attr.var:match("^(.*)%+notify$");
1437
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
249 if nfeature then notify[nfeature] = true; end
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
250 end
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
251 end
cf2eba9b1716 mod_pep: Entity capabilities
Waqas Hussain <waqas20@gmail.com>
parents: 1430
diff changeset
252 hash_map[ver] = notify; -- update hash map
3664
345cd1e04e80 mod_pep: Optimised PEP requests for disco info on caps change (issue #150).
Waqas Hussain <waqas20@gmail.com>
parents: 3648
diff changeset
253 if self then
3666
44c4789d6e17 mod_pep: Fixed a nil access (thanks Zash).
Waqas Hussain <waqas20@gmail.com>
parents: 3664
diff changeset
254 for jid, item in pairs(session.roster) do -- for all interested contacts
3664
345cd1e04e80 mod_pep: Optimised PEP requests for disco info on caps change (issue #150).
Waqas Hussain <waqas20@gmail.com>
parents: 3648
diff changeset
255 if item.subscription == "both" or item.subscription == "from" then
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256 if not recipients[jid] then recipients[jid] = {}; end
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257 recipients[jid][contact] = notify;
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258 publish_all(jid, contact, session);
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259 end
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260 end
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261 end
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262 recipients[user][contact] = notify; -- set recipient's data to calculated data
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263 -- send messages to recipient
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264 publish_all(user, contact, session);
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265 end
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266 end
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267 end);
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268
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269 module:hook("account-disco-info", function(event)
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270 local stanza = event.stanza;
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271 stanza:tag('identity', {category='pubsub', type='pep'}):up();
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272 stanza:tag('feature', {var='http://jabber.org/protocol/pubsub#publish'}):up();
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273 end);
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274
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275 module:hook("account-disco-items", function(event)
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1eec2bd19bf7 mod_pep: Fixed a possible traceback during disco#items queries on a user's bare JID by remote users.
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276 local stanza = event.stanza;
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277 local bare = stanza.attr.to;
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278 local user_data = data[bare];
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279
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280 if user_data then
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281 for node, _ in pairs(user_data) do
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282 stanza:tag('item', {jid=bare, node=node}):up(); -- TODO we need to handle queries to these nodes
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283 end
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284 end
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285 end);