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plugins/mod_pubsub/pubsub.lib.lua @ 6441:bcb1ea9047d3
mod_pubsub: Add support for requesting default node configuration
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 28 Sep 2014 01:55:32 +0200 |
parent | 6438:b1c40054b59d |
child | 6445:f1ad3923368c |
rev | line source |
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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 local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner"; |
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7 |
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8 local _M = {}; |
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9 |
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10 local handlers = {}; |
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11 _M.handlers = handlers; |
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12 |
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13 local pubsub_errors = { |
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14 ["conflict"] = { "cancel", "conflict" }; |
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15 ["invalid-jid"] = { "modify", "bad-request", nil, "invalid-jid" }; |
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16 ["jid-required"] = { "modify", "bad-request", nil, "jid-required" }; |
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17 ["nodeid-required"] = { "modify", "bad-request", nil, "nodeid-required" }; |
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18 ["item-not-found"] = { "cancel", "item-not-found" }; |
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19 ["not-subscribed"] = { "modify", "unexpected-request", nil, "not-subscribed" }; |
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20 ["forbidden"] = { "cancel", "forbidden" }; |
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21 ["not-allowed"] = { "cancel", "not-allowed" }; |
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22 }; |
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23 local function pubsub_error_reply(stanza, error) |
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24 local e = pubsub_errors[error]; |
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25 local reply = st.error_reply(stanza, unpack(e, 1, 3)); |
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26 if e[4] then |
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27 reply:tag(e[4], { xmlns = xmlns_pubsub_errors }):up(); |
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28 end |
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29 return reply; |
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30 end |
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31 _M.pubsub_error_reply = pubsub_error_reply; |
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32 |
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33 function handlers.get_items(origin, stanza, items, service) |
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34 local node = items.attr.node; |
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35 local item = items:get_child("item"); |
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36 local id = item and item.attr.id; |
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37 |
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38 if not node then |
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39 return origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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40 end |
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41 local ok, results = service:get_items(node, stanza.attr.from, id); |
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42 if not ok then |
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43 return origin.send(pubsub_error_reply(stanza, results)); |
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44 end |
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45 |
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46 local data = st.stanza("items", { node = node }); |
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47 for _, id in ipairs(results) do |
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48 data:add_child(results[id]); |
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49 end |
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50 local reply; |
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51 if data then |
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52 reply = st.reply(stanza) |
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53 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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54 :add_child(data); |
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55 else |
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56 reply = pubsub_error_reply(stanza, "item-not-found"); |
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57 end |
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58 return origin.send(reply); |
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59 end |
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60 |
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61 function handlers.get_subscriptions(origin, stanza, subscriptions, service) |
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62 local node = subscriptions.attr.node; |
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63 local ok, ret = service:get_subscriptions(node, stanza.attr.from, stanza.attr.from); |
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64 if not ok then |
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65 return origin.send(pubsub_error_reply(stanza, ret)); |
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66 end |
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67 local reply = st.reply(stanza) |
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68 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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69 :tag("subscriptions"); |
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70 for _, sub in ipairs(ret) do |
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71 reply:tag("subscription", { node = sub.node, jid = sub.jid, subscription = 'subscribed' }):up(); |
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72 end |
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73 return origin.send(reply); |
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74 end |
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75 |
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76 function handlers.set_create(origin, stanza, create, service) |
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77 local node = create.attr.node; |
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78 local ok, ret, reply; |
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79 if node then |
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80 ok, ret = service:create(node, stanza.attr.from); |
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81 if ok then |
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82 reply = st.reply(stanza); |
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83 else |
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84 reply = pubsub_error_reply(stanza, ret); |
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85 end |
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86 else |
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87 repeat |
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88 node = uuid_generate(); |
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89 ok, ret = service:create(node, stanza.attr.from); |
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90 until ok or ret ~= "conflict"; |
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91 if ok then |
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92 reply = st.reply(stanza) |
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93 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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94 :tag("create", { node = node }); |
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95 else |
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96 reply = pubsub_error_reply(stanza, ret); |
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97 end |
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98 end |
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99 return origin.send(reply); |
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100 end |
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101 |
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102 function handlers.set_delete(origin, stanza, delete, service) |
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103 local node = delete.attr.node; |
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104 |
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105 local reply, notifier; |
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106 if not node then |
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107 return origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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108 end |
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109 local ok, ret = service:delete(node, stanza.attr.from); |
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110 if ok then |
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111 reply = st.reply(stanza); |
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112 else |
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113 reply = pubsub_error_reply(stanza, ret); |
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114 end |
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115 return origin.send(reply); |
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116 end |
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117 |
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118 function handlers.set_subscribe(origin, stanza, subscribe, service) |
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119 local node, jid = subscribe.attr.node, subscribe.attr.jid; |
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120 if not (node and jid) then |
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121 return origin.send(pubsub_error_reply(stanza, jid and "nodeid-required" or "invalid-jid")); |
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122 end |
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123 --[[ |
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124 local options_tag, options = stanza.tags[1]:get_child("options"), nil; |
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125 if options_tag then |
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126 options = options_form:data(options_tag.tags[1]); |
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127 end |
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128 --]] |
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129 local options_tag, options; -- FIXME |
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130 local ok, ret = service:add_subscription(node, stanza.attr.from, jid, options); |
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131 local reply; |
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132 if ok then |
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133 reply = st.reply(stanza) |
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134 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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135 :tag("subscription", { |
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136 node = node, |
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137 jid = jid, |
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138 subscription = "subscribed" |
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139 }):up(); |
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140 if options_tag then |
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141 reply:add_child(options_tag); |
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142 end |
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143 else |
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144 reply = pubsub_error_reply(stanza, ret); |
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145 end |
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146 origin.send(reply); |
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147 end |
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148 |
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149 function handlers.set_unsubscribe(origin, stanza, unsubscribe, service) |
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150 local node, jid = unsubscribe.attr.node, unsubscribe.attr.jid; |
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151 if not (node and jid) then |
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152 return origin.send(pubsub_error_reply(stanza, jid and "nodeid-required" or "invalid-jid")); |
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153 end |
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154 local ok, ret = service:remove_subscription(node, stanza.attr.from, jid); |
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155 local reply; |
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156 if ok then |
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157 reply = st.reply(stanza); |
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158 else |
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159 reply = pubsub_error_reply(stanza, ret); |
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160 end |
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161 return origin.send(reply); |
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162 end |
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163 |
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164 function handlers.set_publish(origin, stanza, publish, service) |
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165 local node = publish.attr.node; |
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166 if not node then |
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167 return origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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168 end |
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169 local item = publish:get_child("item"); |
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170 local id = (item and item.attr.id); |
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171 if not id then |
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172 id = uuid_generate(); |
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173 if item then |
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174 item.attr.id = id; |
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175 end |
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176 end |
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177 local ok, ret = service:publish(node, stanza.attr.from, id, item); |
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178 local reply; |
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179 if ok then |
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180 reply = st.reply(stanza) |
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181 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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182 :tag("publish", { node = node }) |
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183 :tag("item", { id = id }); |
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184 else |
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185 reply = pubsub_error_reply(stanza, ret); |
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186 end |
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187 return origin.send(reply); |
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188 end |
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189 |
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190 function handlers.set_retract(origin, stanza, retract, service) |
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191 local node, notify = retract.attr.node, retract.attr.notify; |
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192 notify = (notify == "1") or (notify == "true"); |
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193 local item = retract:get_child("item"); |
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194 local id = item and item.attr.id |
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195 if not (node and id) then |
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196 return origin.send(pubsub_error_reply(stanza, node and "item-not-found" or "nodeid-required")); |
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197 end |
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198 local reply, notifier; |
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199 if notify then |
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200 notifier = st.stanza("retract", { id = id }); |
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201 end |
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202 local ok, ret = service:retract(node, stanza.attr.from, id, notifier); |
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203 if ok then |
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204 reply = st.reply(stanza); |
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205 else |
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206 reply = pubsub_error_reply(stanza, ret); |
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207 end |
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208 return origin.send(reply); |
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209 end |
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210 |
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211 function handlers.set_purge(origin, stanza, purge, service) |
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212 local node, notify = purge.attr.node, purge.attr.notify; |
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213 notify = (notify == "1") or (notify == "true"); |
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214 local reply; |
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215 if not node then |
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216 return origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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217 end |
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218 local ok, ret = service:purge(node, stanza.attr.from, notify); |
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219 if ok then |
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220 reply = st.reply(stanza); |
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221 else |
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222 reply = pubsub_error_reply(stanza, ret); |
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223 end |
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224 return origin.send(reply); |
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225 end |
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226 |
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227 function handlers.get_configure(origin, stanza, config, service) |
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228 local node = config.attr.node; |
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229 if not node then |
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230 return origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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231 end |
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232 |
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233 if not service:may(node, actor, "configure") then |
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234 return origin.send(pubsub_error_reply(stanza, "forbidden")); |
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235 end |
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236 |
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237 local node_obj = service.nodes[node]; |
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238 if not node_obj then |
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239 return origin.send(pubsub_error_reply(stanza, "item-not-found")); |
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240 end |
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241 |
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242 local form = self.config.node_config_form; |
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243 if not form then |
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244 return origin.send(pubsub_error_reply(stanza, "not-allowed")); |
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245 end |
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246 |
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247 local reply = st.reply(stanza) |
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248 :tag("pubsub", { xmlns = xmlns_pubsub_owner }) |
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249 :tag("configure", { node = node }) |
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250 :add_child(form:form(node_obj.config)); |
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251 return origin.send(reply); |
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252 end |
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253 |
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254 function handlers.set_configure(origin, stanza, config, service) |
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255 local node = config.attr.node; |
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256 if not node then |
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257 return origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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258 end |
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259 local form, node_obj = service:get_node_config_form(node, stanza.attr.from); |
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260 if not form then |
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261 return origin.send(pubsub_error_reply(stanza, node_obj)); |
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262 end |
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263 local new_config, err = form:data(config.tags[1]); |
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264 if not new_config then |
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265 return origin.send(st.error_reply(stanza, "modify", "bad-request", err)); |
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266 end |
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267 local ok, err = service:set_node_config(node, stanza.attr.from, new_config); |
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268 if not ok then |
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269 return origin.send(pubsub_error_reply(stanza, err)); |
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270 end |
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271 return origin.send(st.reply(stanza)); |
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272 end |
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273 |
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274 function handlers.get_default(origin, stanza, default, service) |
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275 local reply = st.reply(stanza) |
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276 :tag("pubsub", { xmlns = xmlns_pubsub_owner }) |
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277 :tag("configure", { node = node }) |
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278 :add_child(form:form(service.node_default_config)); |
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279 return origin.send(reply); |
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280 end |
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281 |
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282 return _M; |