prosody
8416d4619d80
plugins/mod_pubsub/pubsub.lib.lua

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plugins/mod_pubsub/pubsub.lib.lua @ 5626:8416d4619d80

mod_pubsub: Split out handlers into a module library
author Florian Zeitz <florob@babelmonkeys.de>
date Fri, 17 May 2013 18:33:32 +0200
child 5851:cdcfd93e2f43
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5626
8416d4619d80 mod_pubsub: Split out handlers into a module library
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1 local st = require "util.stanza";
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2 local uuid_generate = require "util.uuid".generate;
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3
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4 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
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5 local xmlns_pubsub_errors = "http://jabber.org/protocol/pubsub#errors";
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6
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7 local _M = {};
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8
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9 local handlers = {};
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10 _M.handlers = handlers;
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11
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12 local pubsub_errors = {
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13 ["conflict"] = { "cancel", "conflict" };
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14 ["invalid-jid"] = { "modify", "bad-request", nil, "invalid-jid" };
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15 ["jid-required"] = { "modify", "bad-request", nil, "jid-required" };
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16 ["nodeid-required"] = { "modify", "bad-request", nil, "nodeid-required" };
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17 ["item-not-found"] = { "cancel", "item-not-found" };
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18 ["not-subscribed"] = { "modify", "unexpected-request", nil, "not-subscribed" };
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19 ["forbidden"] = { "cancel", "forbidden" };
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20 };
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21 local function pubsub_error_reply(stanza, error)
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22 local e = pubsub_errors[error];
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23 local reply = st.error_reply(stanza, unpack(e, 1, 3));
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24 if e[4] then
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25 reply:tag(e[4], { xmlns = xmlns_pubsub_errors }):up();
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26 end
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27 return reply;
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28 end
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29 _M.pubsub_error_reply = pubsub_error_reply;
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30
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31 function handlers.get_items(origin, stanza, items, service)
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32 local node = items.attr.node;
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33 local item = items:get_child("item");
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34 local id = item and item.attr.id;
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35
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36 if not node then
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37 return origin.send(pubsub_error_reply(stanza, "nodeid-required"));
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38 end
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39 local ok, results = service:get_items(node, stanza.attr.from, id);
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40 if not ok then
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41 return origin.send(pubsub_error_reply(stanza, results));
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42 end
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43
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44 local data = st.stanza("items", { node = node });
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45 for _, entry in pairs(results) do
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46 data:add_child(entry);
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47 end
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48 local reply;
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49 if data then
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50 reply = st.reply(stanza)
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51 :tag("pubsub", { xmlns = xmlns_pubsub })
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52 :add_child(data);
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53 else
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54 reply = pubsub_error_reply(stanza, "item-not-found");
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55 end
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56 return origin.send(reply);
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57 end
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58
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59 function handlers.get_subscriptions(origin, stanza, subscriptions, service)
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60 local node = subscriptions.attr.node;
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61 local ok, ret = service:get_subscriptions(node, stanza.attr.from, stanza.attr.from);
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62 if not ok then
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63 return origin.send(pubsub_error_reply(stanza, ret));
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64 end
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65 local reply = st.reply(stanza)
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66 :tag("pubsub", { xmlns = xmlns_pubsub })
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67 :tag("subscriptions");
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68 for _, sub in ipairs(ret) do
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69 reply:tag("subscription", { node = sub.node, jid = sub.jid, subscription = 'subscribed' }):up();
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70 end
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71 return origin.send(reply);
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72 end
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73
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74 function handlers.set_create(origin, stanza, create, service)
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75 local node = create.attr.node;
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76 local ok, ret, reply;
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77 if node then
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78 ok, ret = service:create(node, stanza.attr.from);
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79 if ok then
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80 reply = st.reply(stanza);
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81 else
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82 reply = pubsub_error_reply(stanza, ret);
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83 end
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84 else
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85 repeat
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86 node = uuid_generate();
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87 ok, ret = service:create(node, stanza.attr.from);
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88 until ok or ret ~= "conflict";
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89 if ok then
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90 reply = st.reply(stanza)
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91 :tag("pubsub", { xmlns = xmlns_pubsub })
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92 :tag("create", { node = node });
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93 else
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94 reply = pubsub_error_reply(stanza, ret);
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95 end
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96 end
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97 return origin.send(reply);
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98 end
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99
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100 function handlers.set_delete(origin, stanza, delete, service)
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101 local node = delete.attr.node;
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102
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103 local reply, notifier;
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104 if not node then
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105 return origin.send(pubsub_error_reply(stanza, "nodeid-required"));
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106 end
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107 local ok, ret = service:delete(node, stanza.attr.from);
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108 if ok then
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109 reply = st.reply(stanza);
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110 else
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111 reply = pubsub_error_reply(stanza, ret);
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112 end
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113 return origin.send(reply);
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114 end
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115
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116 function handlers.set_subscribe(origin, stanza, subscribe, service)
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117 local node, jid = subscribe.attr.node, subscribe.attr.jid;
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118 if not (node and jid) then
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119 return origin.send(pubsub_error_reply(stanza, jid and "nodeid-required" or "invalid-jid"));
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120 end
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121 --[[
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122 local options_tag, options = stanza.tags[1]:get_child("options"), nil;
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123 if options_tag then
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124 options = options_form:data(options_tag.tags[1]);
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125 end
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126 --]]
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127 local options_tag, options; -- FIXME
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128 local ok, ret = service:add_subscription(node, stanza.attr.from, jid, options);
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129 local reply;
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130 if ok then
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131 reply = st.reply(stanza)
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132 :tag("pubsub", { xmlns = xmlns_pubsub })
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133 :tag("subscription", {
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134 node = node,
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135 jid = jid,
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136 subscription = "subscribed"
8416d4619d80 mod_pubsub: Split out handlers into a module library
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137 }):up();
8416d4619d80 mod_pubsub: Split out handlers into a module library
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138 if options_tag then
8416d4619d80 mod_pubsub: Split out handlers into a module library
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139 reply:add_child(options_tag);
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140 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
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141 else
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142 reply = pubsub_error_reply(stanza, ret);
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143 end
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144 origin.send(reply);
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145 end
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146
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147 function handlers.set_unsubscribe(origin, stanza, unsubscribe, service)
8416d4619d80 mod_pubsub: Split out handlers into a module library
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148 local node, jid = unsubscribe.attr.node, unsubscribe.attr.jid;
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149 if not (node and jid) then
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150 return origin.send(pubsub_error_reply(stanza, jid and "nodeid-required" or "invalid-jid"));
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151 end
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152 local ok, ret = service:remove_subscription(node, stanza.attr.from, jid);
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153 local reply;
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154 if ok then
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155 reply = st.reply(stanza);
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156 else
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157 reply = pubsub_error_reply(stanza, ret);
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158 end
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159 return origin.send(reply);
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160 end
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161
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162 function handlers.set_publish(origin, stanza, publish, service)
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163 local node = publish.attr.node;
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164 if not node then
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165 return origin.send(pubsub_error_reply(stanza, "nodeid-required"));
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166 end
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167 local item = publish:get_child("item");
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168 local id = (item and item.attr.id);
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169 if not id then
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170 id = uuid_generate();
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171 if item then
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172 item.attr.id = id;
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173 end
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174 end
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175 local ok, ret = service:publish(node, stanza.attr.from, id, item);
8416d4619d80 mod_pubsub: Split out handlers into a module library
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diff changeset
176 local reply;
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diff changeset
177 if ok then
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diff changeset
178 reply = st.reply(stanza)
8416d4619d80 mod_pubsub: Split out handlers into a module library
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diff changeset
179 :tag("pubsub", { xmlns = xmlns_pubsub })
8416d4619d80 mod_pubsub: Split out handlers into a module library
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180 :tag("publish", { node = node })
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181 :tag("item", { id = id });
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182 else
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diff changeset
183 reply = pubsub_error_reply(stanza, ret);
8416d4619d80 mod_pubsub: Split out handlers into a module library
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diff changeset
184 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
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185 return origin.send(reply);
8416d4619d80 mod_pubsub: Split out handlers into a module library
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186 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
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diff changeset
187
8416d4619d80 mod_pubsub: Split out handlers into a module library
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diff changeset
188 function handlers.set_retract(origin, stanza, retract, service)
8416d4619d80 mod_pubsub: Split out handlers into a module library
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diff changeset
189 local node, notify = retract.attr.node, retract.attr.notify;
8416d4619d80 mod_pubsub: Split out handlers into a module library
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190 notify = (notify == "1") or (notify == "true");
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
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191 local item = retract:get_child("item");
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
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diff changeset
192 local id = item and item.attr.id
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
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diff changeset
193 if not (node and id) then
8416d4619d80 mod_pubsub: Split out handlers into a module library
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diff changeset
194 return origin.send(pubsub_error_reply(stanza, node and "item-not-found" or "nodeid-required"));
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
195 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
196 local reply, notifier;
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
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diff changeset
197 if notify then
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
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diff changeset
198 notifier = st.stanza("retract", { id = id });
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
199 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
200 local ok, ret = service:retract(node, stanza.attr.from, id, notifier);
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
201 if ok then
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
202 reply = st.reply(stanza);
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
203 else
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
204 reply = pubsub_error_reply(stanza, ret);
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
205 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
206 return origin.send(reply);
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
207 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
208
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
209 function handlers.set_purge(origin, stanza, purge, service)
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
210 local node, notify = purge.attr.node, purge.attr.notify;
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
211 notify = (notify == "1") or (notify == "true");
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
212 local reply;
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
213 if not node then
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
214 return origin.send(pubsub_error_reply(stanza, "nodeid-required"));
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
215 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
216 local ok, ret = service:purge(node, stanza.attr.from, notify);
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
217 if ok then
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
218 reply = st.reply(stanza);
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
219 else
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
220 reply = pubsub_error_reply(stanza, ret);
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
221 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
222 return origin.send(reply);
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
223 end
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
224
8416d4619d80 mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
225 return _M;