prosody
d6be4dda1f60
plugins/mod_pubsub/mod_pubsub.lua

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plugins/mod_pubsub/mod_pubsub.lua @ 11694:d6be4dda1f60

net.server_epoll: Set minimum wait time to 1ms, matching epoll A timeout value less than 0.001 gets turned into zero on the C side, so epoll_wait() returns instantly and essentially busy-loops up to 1ms, e.g. when a timer event ends up scheduled (0, 0.001)ms into the future. Unsure if this has much effect in practice, but it may waste a small amount of CPU time. How much would depend on how often this ends up happening and how fast the CPU gets trough main loop iterations.
author Kim Alvefur <zash@zash.se>
date Thu, 15 Jul 2021 01:38:44 +0200
parent 11631:6641ca266d94
child 11715:ddd6e21e58bf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 local pubsub = require "util.pubsub";
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2 local st = require "util.stanza";
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3 local jid_bare = require "util.jid".bare;
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4 local usermanager = require "core.usermanager";
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5 local new_id = require "util.id".medium;
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parents: 9597
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6 local storagemanager = require "core.storagemanager";
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7
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8 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
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9 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event";
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10 local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner";
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11
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12 local autocreate_on_publish = module:get_option_boolean("autocreate_on_publish", false);
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13 local autocreate_on_subscribe = module:get_option_boolean("autocreate_on_subscribe", false);
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879be73c0a58 mod_pubsub: Fix syntax error introduced in 241f02bd66ce
Matthew Wild <mwild1@gmail.com>
parents: 7980
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14 local pubsub_disco_name = module:get_option_string("name", "Prosody PubSub Service");
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c9a72c64c3e2 mod_pubsub: Add support for including the publisher in item broadcasts
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15 local expose_publisher = module:get_option_boolean("expose_publisher", false)
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16
8416d4619d80 mod_pubsub: Split out handlers into a module library
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17 local service;
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18
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19 local lib_pubsub = module:require "pubsub";
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20
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21 module:depends("disco");
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22 module:add_identity("pubsub", "service", pubsub_disco_name);
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23 module:add_feature("http://jabber.org/protocol/pubsub");
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24
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25 function handle_pubsub_iq(event)
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26 return lib_pubsub.handle_pubsub_iq(event, service);
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27 end
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28
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29 -- An itemstore supports the following methods:
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30 -- items(): iterator over (id, item)
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31 -- get(id): return item with id
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32 -- set(id, item): set id to item
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33 -- clear(): clear all items
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34 -- resize(n): set new limit and trim oldest items
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35 -- tail(): return the latest item
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36
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37 -- A nodestore supports the following methods:
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38 -- set(node_name, node_data)
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39 -- get(node_name)
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40 -- users(): iterator over (node_name)
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41
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parents: 11202
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42 local max_max_items = module:get_option_number("pubsub_max_items", 256);
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43
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44 local function tonumber_max_items(n)
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45 if n == "max" then
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46 return max_max_items;
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47 end
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48 return tonumber(n);
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49 end
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50
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51 local node_store = module:open_store(module.name.."_nodes");
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52
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53 local function create_simple_itemstore(node_config, node_name) --> util.cache like object
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parents: 9597
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54 local driver = storagemanager.get_driver(module.host, "pubsub_data");
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parents: 9597
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55 local archive = driver:open("pubsub_"..node_name, "archive");
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56 local max_items = tonumber_max_items(node_config["max_items"]);
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57 return lib_pubsub.archive_itemstore(archive, max_items, nil, node_name);
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e1272aeef31c mod_pubsub: Add item persistence using mod_storage_*’s archive store.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 8210
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58 end
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59
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60 function simple_broadcast(kind, node, jids, item, actor, node_obj)
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61 if node_obj then
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62 if node_obj.config["notify_"..kind] == false then
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63 return;
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64 end
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parents: 9179
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65 end
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82fad995a149 util.pubsub: Pass "retract" as the type of such broadcasts
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66 if kind == "retract" then
82fad995a149 util.pubsub: Pass "retract" as the type of such broadcasts
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67 kind = "items"; -- XEP-0060 signals retraction in an <items> container
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68 end
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69
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70 if item then
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71 item = st.clone(item);
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72 item.attr.xmlns = nil; -- Clear the pubsub namespace
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73 if kind == "items" then
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74 if node_obj and node_obj.config.include_payload == false then
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75 item:maptags(function () return nil; end);
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76 end
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77 if expose_publisher and actor then
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78 item.attr.publisher = actor
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79 end
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80 end
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81 end
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Kim Alvefur <zash@zash.se>
parents: 8808
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82
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Kim Alvefur <zash@zash.se>
parents: 8808
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83 local id = new_id();
11201
4ae1d485a9c6 mod_pubsub: Fix notification stanza type setting (fixes #1605)
Kim Alvefur <zash@zash.se>
parents: 11199
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84 local msg_type = node_obj and node_obj.config.notification_type or "headline";
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85 local message = st.message({ from = module.host, type = msg_type, id = id })
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86 :tag("event", { xmlns = xmlns_pubsub_event })
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e7ddf70ae417 mod_pubsub: Add semicolon (code style)
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87 :tag(kind, { node = node });
8946
3a095233e178 mod_pubsub: Handle optional item (thanks jonasw)
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88
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89 if item then
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90 message:add_child(item);
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91 end
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92
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93 local summary;
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94 if item and item.tags[1] then
8815
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Kim Alvefur <zash@zash.se>
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95 local payload = item.tags[1];
9045
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96 summary = module:fire_event("pubsub-summary/"..payload.attr.xmlns, {
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97 kind = kind, node = node, jids = jids, actor = actor, item = item, payload = payload,
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98 });
8815
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99 end
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100
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Kim Alvefur <zash@zash.se>
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101 for jid, options in pairs(jids) do
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Kim Alvefur <zash@zash.se>
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102 local new_stanza = st.clone(message);
9044
18cd5102253c mod_pubsub: Skip checks for adding body if no body generated
Kim Alvefur <zash@zash.se>
parents: 9043
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103 if summary and type(options) == "table" and options["pubsub#include_body"] then
9039
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Kim Alvefur <zash@zash.se>
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104 new_stanza:body(summary);
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105 end
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parents: 8980
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106 new_stanza.attr.to = jid;
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107 module:send(new_stanza);
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108 end
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109 end
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110
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111 function check_node_config(node, actor, new_config) -- luacheck: ignore 212/node 212/actor
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112 if (tonumber_max_items(new_config["max_items"]) or 1) > max_max_items then
9100
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113 return false;
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114 end
9725
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115 if new_config["access_model"] ~= "whitelist"
8ad689b6d26f mod_pubsub: Split line in config check to improve readability
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parents: 9724
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116 and new_config["access_model"] ~= "open" then
9101
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Kim Alvefur <zash@zash.se>
parents: 9100
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117 return false;
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parents: 9100
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118 end
9100
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parents: 9045
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119 return true;
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parents: 9045
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120 end
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parents: 9045
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121
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09e7fd8b16cd mod_pubsub: Reject publishing of non-items
Kim Alvefur <zash@zash.se>
parents: 8505
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122 function is_item_stanza(item)
10672
657e61531b33 mod_pubsub, mod_pep: Ensure correct number of children of <item/> (fixes #1496)
Kim Alvefur <zash@zash.se>
parents: 9828
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123 return st.is_stanza(item) and item.attr.xmlns == xmlns_pubsub and item.name == "item" and #item.tags == 1;
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124 end
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125
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126 -- Compose a textual representation of Atom payloads
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127 module:hook("pubsub-summary/http://www.w3.org/2005/Atom", function (event)
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parents: 9188
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128 local payload = event.payload;
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129 local title = payload:get_child_text("title");
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130 local summary = payload:get_child_text("summary");
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131 if not summary and title then
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132 local author = payload:find("author/name#");
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133 summary = title;
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134 if author then
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135 summary = author .. " posted " .. summary;
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136 end
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parents: 9044
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137 end
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parents: 9044
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138 return summary;
11199
6c7c50a4de32 mod_pubsub: Lower priority of default <body> generator
Kim Alvefur <zash@zash.se>
parents: 10672
diff changeset
139 end, -1);
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parents: 9044
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140
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parents:
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141 module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
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parents:
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142 module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
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parents:
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143
8505
c9bdb4dfed96 mod_pubsub: Ignore unused parameter [luacheck]
Matthew Wild <mwild1@gmail.com>
parents: 8504
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144 local function add_disco_features_from_service(service) --luacheck: ignore 431/service
8340
7c1fb8c042dc mod_pubsub: Move service feature dection to pubsub.lib to allow reuse
Kim Alvefur <zash@zash.se>
parents: 8339
diff changeset
145 for feature in lib_pubsub.get_feature_set(service) do
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parents: 8339
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146 module:add_feature(xmlns_pubsub.."#"..feature);
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147 end
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148 end
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149
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diff changeset
150 module:hook("host-disco-info-node", function (event)
8980
4d2738b99b07 mod_pubsub: Move service discovery to pubsub.lib to allow reuse
Kim Alvefur <zash@zash.se>
parents: 8957
diff changeset
151 return lib_pubsub.handle_disco_info_node(event, service);
5626
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152 end);
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153
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154 module:hook("host-disco-items-node", function (event)
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parents: 8957
diff changeset
155 return lib_pubsub.handle_disco_items_node(event, service);
5690
630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
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parents: 5626
diff changeset
156 end);
5626
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parents:
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157
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parents:
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158
5690
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parents: 5626
diff changeset
159 module:hook("host-disco-items", function (event)
8210
352d605b1178 mod_pubsub: Fix a few warnings [luacheck]
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 7984
diff changeset
160 local stanza, reply = event.stanza, event.reply;
352d605b1178 mod_pubsub: Fix a few warnings [luacheck]
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 7984
diff changeset
161 local ok, ret = service:get_nodes(stanza.attr.from);
5626
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parents:
diff changeset
162 if not ok then
5970
6a2c3293d4d7 mod_pubsub: Don't sent error replies from service disco events, let mod_disco handle that
Kim Alvefur <zash@zash.se>
parents: 5690
diff changeset
163 return;
5626
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parents:
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164 end
5690
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parents: 5626
diff changeset
165 for node, node_obj in pairs(ret) do
9597
17d43543f9b6 pubsub: Set pubsub#title as name attribute in disco#items (fixes #1226)
Kim Alvefur <zash@zash.se>
parents: 9234
diff changeset
166 reply:tag("item", { jid = module.host, node = node, name = node_obj.config.title }):up();
5690
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parents: 5626
diff changeset
167 end
5626
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168 end);
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parents:
diff changeset
169
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parents:
diff changeset
170 local admin_aff = module:get_option_string("default_admin_affiliation", "owner");
7708
c420a38db5ef Backed out changeset f1af4edd5722, doesn't work as intended (node is the name of the node and always present)
Kim Alvefur <zash@zash.se>
parents: 6841
diff changeset
171 local function get_affiliation(jid)
5626
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parents:
diff changeset
172 local bare_jid = jid_bare(jid);
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parents:
diff changeset
173 if bare_jid == module.host or usermanager.is_admin(bare_jid, module.host) then
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parents:
diff changeset
174 return admin_aff;
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parents:
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175 end
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parents:
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176 end
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parents:
diff changeset
177
9118
70f34c663fb3 mod_pubsub: Add a public method for retrieving the service object
Kim Alvefur <zash@zash.se>
parents: 9108
diff changeset
178 function get_service()
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Kim Alvefur <zash@zash.se>
parents: 9108
diff changeset
179 return service;
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Kim Alvefur <zash@zash.se>
parents: 9108
diff changeset
180 end
70f34c663fb3 mod_pubsub: Add a public method for retrieving the service object
Kim Alvefur <zash@zash.se>
parents: 9108
diff changeset
181
5626
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Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
182 function set_service(new_service)
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parents:
diff changeset
183 service = new_service;
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parents:
diff changeset
184 module.environment.service = service;
5690
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parents: 5626
diff changeset
185 add_disco_features_from_service(service);
5626
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parents:
diff changeset
186 end
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parents:
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187
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parents:
diff changeset
188 function module.save()
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parents:
diff changeset
189 return { service = service };
8416d4619d80 mod_pubsub: Split out handlers into a module library
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parents:
diff changeset
190 end
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parents:
diff changeset
191
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
192 function module.restore(data)
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Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
193 set_service(data.service);
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parents:
diff changeset
194 end
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parents:
diff changeset
195
5690
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parents: 5626
diff changeset
196 function module.load()
630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 5626
diff changeset
197 if module.reloading then return; end
630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
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parents: 5626
diff changeset
198
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5626
diff changeset
199 set_service(pubsub.new({
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parents: 5626
diff changeset
200 autocreate_on_publish = autocreate_on_publish;
630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 5626
diff changeset
201 autocreate_on_subscribe = autocreate_on_subscribe;
5626
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
202
8504
80b8355c8b8b mod_pubsub: Add nodestore to service configuration
Matthew Wild <mwild1@gmail.com>
parents: 8503
diff changeset
203 nodestore = node_store;
8503
3b86134c56ea mod_pubsub: Some variable renames for clarity
Matthew Wild <mwild1@gmail.com>
parents: 8340
diff changeset
204 itemstore = create_simple_itemstore;
5690
630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 5626
diff changeset
205 broadcaster = simple_broadcast;
8695
09e7fd8b16cd mod_pubsub: Reject publishing of non-items
Kim Alvefur <zash@zash.se>
parents: 8505
diff changeset
206 itemcheck = is_item_stanza;
9100
e01c7d0cbbf4 mod_pubsub: Add configurable maximum on number of items
Kim Alvefur <zash@zash.se>
parents: 9045
diff changeset
207 check_node_config = check_node_config;
5690
630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 5626
diff changeset
208 get_affiliation = get_affiliation;
5626
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parents:
diff changeset
209
5690
630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 5626
diff changeset
210 normalize_jid = jid_bare;
630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 5626
diff changeset
211 }));
630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 5626
diff changeset
212 end