author | Kim Alvefur <zash@zash.se> |
Fri, 04 Oct 2013 16:40:27 +0200 | |
changeset 5851 | cdcfd93e2f43 |
parent 5626 | 8416d4619d80 |
child 6441 | b1c40054b59d |
permissions | -rw-r--r-- |
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mod_pubsub: Split out handlers into a module library
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1 |
local st = require "util.stanza"; |
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local uuid_generate = require "util.uuid".generate; |
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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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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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|
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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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local e = pubsub_errors[error]; |
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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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_M.pubsub_error_reply = pubsub_error_reply; |
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|
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31 |
function handlers.get_items(origin, stanza, items, service) |
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local node = items.attr.node; |
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local item = items:get_child("item"); |
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local id = item and item.attr.id; |
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|
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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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|
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local data = st.stanza("items", { node = node }); |
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for _, id in ipairs(results) do |
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data:add_child(results[id]); |
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47 |
end |
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48 |
local reply; |
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if data then |
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reply = st.reply(stanza) |
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51 |
:tag("pubsub", { xmlns = xmlns_pubsub }) |
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:add_child(data); |
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else |
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reply = pubsub_error_reply(stanza, "item-not-found"); |
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end |
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return origin.send(reply); |
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end |
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|
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function handlers.get_subscriptions(origin, stanza, subscriptions, service) |
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local node = subscriptions.attr.node; |
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local ok, ret = service:get_subscriptions(node, stanza.attr.from, stanza.attr.from); |
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if not ok then |
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return origin.send(pubsub_error_reply(stanza, ret)); |
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end |
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local reply = st.reply(stanza) |
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:tag("pubsub", { xmlns = xmlns_pubsub }) |
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:tag("subscriptions"); |
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for _, sub in ipairs(ret) do |
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reply:tag("subscription", { node = sub.node, jid = sub.jid, subscription = 'subscribed' }):up(); |
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end |
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return origin.send(reply); |
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end |
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|
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function handlers.set_create(origin, stanza, create, service) |
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75 |
local node = create.attr.node; |
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local ok, ret, reply; |
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if node then |
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ok, ret = service:create(node, stanza.attr.from); |
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if ok then |
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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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until ok or ret ~= "conflict"; |
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if ok then |
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reply = st.reply(stanza) |
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91 |
:tag("pubsub", { xmlns = xmlns_pubsub }) |
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:tag("create", { node = node }); |
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else |
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reply = pubsub_error_reply(stanza, ret); |
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95 |
end |
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96 |
end |
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return origin.send(reply); |
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98 |
end |
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99 |
|
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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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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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local ok, ret = service:delete(node, stanza.attr.from); |
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if ok then |
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109 |
reply = st.reply(stanza); |
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else |
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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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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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if not (node and jid) then |
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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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local options_tag, options = stanza.tags[1]:get_child("options"), nil; |
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123 |
if options_tag then |
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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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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" |
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137 |
}):up(); |
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138 |
if options_tag then |
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139 |
reply:add_child(options_tag); |
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140 |
end |
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141 |
else |
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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) |
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local node, jid = unsubscribe.attr.node, unsubscribe.attr.jid; |
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149 |
if not (node and jid) then |
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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); |
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176 |
local reply; |
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177 |
if ok then |
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178 |
reply = st.reply(stanza) |
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179 |
:tag("pubsub", { xmlns = xmlns_pubsub }) |
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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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183 |
reply = pubsub_error_reply(stanza, ret); |
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184 |
end |
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185 |
return origin.send(reply); |
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186 |
end |
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187 |
|
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188 |
function handlers.set_retract(origin, stanza, retract, service) |
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189 |
local node, notify = retract.attr.node, retract.attr.notify; |
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190 |
notify = (notify == "1") or (notify == "true"); |
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191 |
local item = retract:get_child("item"); |
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192 |
local id = item and item.attr.id |
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193 |
if not (node and id) then |
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194 |
return origin.send(pubsub_error_reply(stanza, node and "item-not-found" or "nodeid-required")); |
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195 |
end |
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196 |
local reply, notifier; |
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197 |
if notify then |
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|
198 |
notifier = st.stanza("retract", { id = id }); |
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199 |
end |
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200 |
local ok, ret = service:retract(node, stanza.attr.from, id, notifier); |
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|
201 |
if ok then |
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|
202 |
reply = st.reply(stanza); |
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203 |
else |
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204 |
reply = pubsub_error_reply(stanza, ret); |
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205 |
end |
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206 |
return origin.send(reply); |
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207 |
end |
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208 |
|
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|
209 |
function handlers.set_purge(origin, stanza, purge, service) |
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|
210 |
local node, notify = purge.attr.node, purge.attr.notify; |
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211 |
notify = (notify == "1") or (notify == "true"); |
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212 |
local reply; |
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213 |
if not node then |
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214 |
return origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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215 |
end |
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216 |
local ok, ret = service:purge(node, stanza.attr.from, notify); |
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217 |
if ok then |
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218 |
reply = st.reply(stanza); |
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219 |
else |
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220 |
reply = pubsub_error_reply(stanza, ret); |
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221 |
end |
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222 |
return origin.send(reply); |
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223 |
end |
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224 |
|
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225 |
return _M; |