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plugins/mod_pubsub/pubsub.lib.lua @ 8320:fe5eaf4ed631
mod_pep_plus: Make node persistence configurable via pubsub#persist_items
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 12 Oct 2017 01:37:35 +0200 |
parent | 8318:d0a7fc7614de |
child | 8323:f2c1d65f706b |
rev | line source |
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1 local t_unpack = table.unpack or unpack; -- luacheck: ignore 113 |
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2 local time_now = os.time; |
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3 |
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4 local st = require "util.stanza"; |
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5 local uuid_generate = require "util.uuid".generate; |
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6 local dataform = require"util.dataforms".new; |
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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_errors = "http://jabber.org/protocol/pubsub#errors"; |
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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 _M = {}; |
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13 |
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14 local handlers = {}; |
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15 _M.handlers = handlers; |
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16 |
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17 local pubsub_errors = { |
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18 ["conflict"] = { "cancel", "conflict" }; |
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19 ["invalid-jid"] = { "modify", "bad-request", nil, "invalid-jid" }; |
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20 ["jid-required"] = { "modify", "bad-request", nil, "jid-required" }; |
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21 ["nodeid-required"] = { "modify", "bad-request", nil, "nodeid-required" }; |
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22 ["item-not-found"] = { "cancel", "item-not-found" }; |
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23 ["not-subscribed"] = { "modify", "unexpected-request", nil, "not-subscribed" }; |
6473 | 24 ["forbidden"] = { "auth", "forbidden" }; |
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25 ["not-allowed"] = { "cancel", "not-allowed" }; |
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26 }; |
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27 local function pubsub_error_reply(stanza, error) |
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28 local e = pubsub_errors[error]; |
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29 local reply = st.error_reply(stanza, t_unpack(e, 1, 3)); |
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30 if e[4] then |
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31 reply:tag(e[4], { xmlns = xmlns_pubsub_errors }):up(); |
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32 end |
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33 return reply; |
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34 end |
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35 _M.pubsub_error_reply = pubsub_error_reply; |
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36 |
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37 local node_config_form = dataform { |
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38 { |
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39 type = "hidden"; |
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40 name = "FORM_TYPE"; |
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41 value = "http://jabber.org/protocol/pubsub#node_config"; |
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42 }; |
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43 { |
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44 type = "text-single"; |
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45 name = "pubsub#max_items"; |
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46 label = "Max # of items to persist"; |
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47 }; |
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48 { |
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49 type = "boolean"; |
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50 name = "pubsub#persist_items"; |
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51 label = "Persist items to storage"; |
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52 }; |
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53 }; |
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54 |
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55 function handlers.get_items(origin, stanza, items, service) |
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56 local node = items.attr.node; |
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57 local item = items:get_child("item"); |
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58 local item_id = item and item.attr.id; |
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59 |
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60 if not node then |
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61 origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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62 return true; |
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63 end |
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64 local ok, results = service:get_items(node, stanza.attr.from, item_id); |
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65 if not ok then |
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66 origin.send(pubsub_error_reply(stanza, results)); |
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67 return true; |
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68 end |
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69 |
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70 local data = st.stanza("items", { node = node }); |
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71 for _, id in ipairs(results) do |
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72 data:add_child(results[id]); |
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73 end |
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74 local reply; |
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75 if data then |
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76 reply = st.reply(stanza) |
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77 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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78 :add_child(data); |
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79 else |
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80 reply = pubsub_error_reply(stanza, "item-not-found"); |
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81 end |
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82 origin.send(reply); |
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83 return true; |
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84 end |
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85 |
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86 function handlers.get_subscriptions(origin, stanza, subscriptions, service) |
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87 local node = subscriptions.attr.node; |
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88 local ok, ret = service:get_subscriptions(node, stanza.attr.from, stanza.attr.from); |
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89 if not ok then |
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90 origin.send(pubsub_error_reply(stanza, ret)); |
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91 return true; |
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92 end |
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93 local reply = st.reply(stanza) |
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94 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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95 :tag("subscriptions"); |
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96 for _, sub in ipairs(ret) do |
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97 reply:tag("subscription", { node = sub.node, jid = sub.jid, subscription = 'subscribed' }):up(); |
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98 end |
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99 origin.send(reply); |
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100 return true; |
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101 end |
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102 |
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103 function handlers.set_create(origin, stanza, create, service) |
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104 local node = create.attr.node; |
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105 local ok, ret, reply; |
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106 if node then |
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107 ok, ret = service:create(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 else |
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114 repeat |
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115 node = uuid_generate(); |
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116 ok, ret = service:create(node, stanza.attr.from); |
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117 until ok or ret ~= "conflict"; |
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118 if ok then |
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119 reply = st.reply(stanza) |
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120 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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121 :tag("create", { node = node }); |
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122 else |
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123 reply = pubsub_error_reply(stanza, ret); |
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124 end |
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125 end |
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126 origin.send(reply); |
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127 return true; |
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128 end |
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129 |
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130 function handlers.set_delete(origin, stanza, delete, service) |
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131 local node = delete.attr.node; |
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132 |
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133 local reply; |
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134 if not node then |
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135 origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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136 return true; |
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137 end |
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138 local ok, ret = service:delete(node, stanza.attr.from); |
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139 if ok then |
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140 reply = st.reply(stanza); |
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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 return true; |
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146 end |
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147 |
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148 function handlers.set_subscribe(origin, stanza, subscribe, service) |
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149 local node, jid = subscribe.attr.node, subscribe.attr.jid; |
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150 if not (node and jid) then |
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151 origin.send(pubsub_error_reply(stanza, jid and "nodeid-required" or "invalid-jid")); |
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152 return true; |
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153 end |
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154 --[[ |
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155 local options_tag, options = stanza.tags[1]:get_child("options"), nil; |
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156 if options_tag then |
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157 options = options_form:data(options_tag.tags[1]); |
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158 end |
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159 --]] |
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160 local options_tag, options; -- FIXME |
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161 local ok, ret = service:add_subscription(node, stanza.attr.from, jid, options); |
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162 local reply; |
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163 if ok then |
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164 reply = st.reply(stanza) |
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165 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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166 :tag("subscription", { |
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167 node = node, |
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168 jid = jid, |
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169 subscription = "subscribed" |
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170 }):up(); |
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171 if options_tag then |
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172 reply:add_child(options_tag); |
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173 end |
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174 else |
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175 reply = pubsub_error_reply(stanza, ret); |
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176 end |
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177 origin.send(reply); |
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178 end |
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179 |
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180 function handlers.set_unsubscribe(origin, stanza, unsubscribe, service) |
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181 local node, jid = unsubscribe.attr.node, unsubscribe.attr.jid; |
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182 if not (node and jid) then |
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183 origin.send(pubsub_error_reply(stanza, jid and "nodeid-required" or "invalid-jid")); |
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184 return true; |
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185 end |
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186 local ok, ret = service:remove_subscription(node, stanza.attr.from, jid); |
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187 local reply; |
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188 if ok then |
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189 reply = st.reply(stanza); |
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190 else |
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191 reply = pubsub_error_reply(stanza, ret); |
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192 end |
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193 origin.send(reply); |
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194 return true; |
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195 end |
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196 |
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197 function handlers.set_publish(origin, stanza, publish, service) |
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198 local node = publish.attr.node; |
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199 if not node then |
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200 origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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201 return true; |
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202 end |
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203 local item = publish:get_child("item"); |
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204 local id = (item and item.attr.id); |
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205 if not id then |
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206 id = uuid_generate(); |
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207 if item then |
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208 item.attr.id = id; |
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209 end |
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210 end |
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211 local ok, ret = service:publish(node, stanza.attr.from, id, item); |
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212 local reply; |
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213 if ok then |
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214 reply = st.reply(stanza) |
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215 :tag("pubsub", { xmlns = xmlns_pubsub }) |
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216 :tag("publish", { node = node }) |
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217 :tag("item", { id = id }); |
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218 else |
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219 reply = pubsub_error_reply(stanza, ret); |
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220 end |
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221 origin.send(reply); |
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222 return true; |
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223 end |
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224 |
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225 function handlers.set_retract(origin, stanza, retract, service) |
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226 local node, notify = retract.attr.node, retract.attr.notify; |
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227 notify = (notify == "1") or (notify == "true"); |
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228 local item = retract:get_child("item"); |
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229 local id = item and item.attr.id |
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230 if not (node and id) then |
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231 origin.send(pubsub_error_reply(stanza, node and "item-not-found" or "nodeid-required")); |
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232 return true; |
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233 end |
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234 local reply, notifier; |
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235 if notify then |
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236 notifier = st.stanza("retract", { id = id }); |
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237 end |
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238 local ok, ret = service:retract(node, stanza.attr.from, id, notifier); |
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239 if ok then |
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240 reply = st.reply(stanza); |
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241 else |
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242 reply = pubsub_error_reply(stanza, ret); |
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243 end |
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244 origin.send(reply); |
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245 return true; |
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246 end |
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247 |
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248 function handlers.set_purge(origin, stanza, purge, service) |
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249 local node, notify = purge.attr.node, purge.attr.notify; |
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250 notify = (notify == "1") or (notify == "true"); |
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251 local reply; |
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252 if not node then |
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253 origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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254 return true; |
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255 end |
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256 local ok, ret = service:purge(node, stanza.attr.from, notify); |
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257 if ok then |
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258 reply = st.reply(stanza); |
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259 else |
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260 reply = pubsub_error_reply(stanza, ret); |
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261 end |
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262 origin.send(reply); |
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263 return true; |
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264 end |
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265 |
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266 function handlers.get_configure(origin, stanza, config, service) |
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267 local node = config.attr.node; |
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268 if not node then |
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269 origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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270 return true; |
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271 end |
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272 |
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273 if not service:may(node, stanza.attr.from, "configure") then |
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274 origin.send(pubsub_error_reply(stanza, "forbidden")); |
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275 return true; |
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276 end |
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277 |
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278 local node_obj = service.nodes[node]; |
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279 if not node_obj then |
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280 origin.send(pubsub_error_reply(stanza, "item-not-found")); |
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281 return true; |
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282 end |
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283 |
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284 local reply = st.reply(stanza) |
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285 :tag("pubsub", { xmlns = xmlns_pubsub_owner }) |
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286 :tag("configure", { node = node }) |
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287 :add_child(node_config_form:form(node_obj.config)); |
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288 origin.send(reply); |
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289 return true; |
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290 end |
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291 |
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292 function handlers.set_configure(origin, stanza, config, service) |
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293 local node = config.attr.node; |
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294 if not node then |
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295 origin.send(pubsub_error_reply(stanza, "nodeid-required")); |
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296 return true; |
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297 end |
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298 if not service:may(node, stanza.attr.from, "configure") then |
6841
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299 origin.send(pubsub_error_reply(stanza, "forbidden")); |
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300 return true; |
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301 end |
8317
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diff
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|
302 local config_form = config:get_child("x", "jabber:x:data"); |
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diff
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|
303 if not config_form then |
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|
304 origin.send(st.error_reply(stanza, "modify", "bad-request", "Missing dataform")); |
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|
305 return true; |
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diff
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|
306 end |
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diff
changeset
|
307 local new_config, err = node_config_form:data(config_form); |
6438
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|
308 if not new_config then |
6841
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|
309 origin.send(st.error_reply(stanza, "modify", "bad-request", err)); |
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|
310 return true; |
6438
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diff
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|
311 end |
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|
312 local ok, err = service:set_node_config(node, stanza.attr.from, new_config); |
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|
313 if not ok then |
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314 origin.send(pubsub_error_reply(stanza, err)); |
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|
315 return true; |
6438
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diff
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|
316 end |
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|
317 origin.send(st.reply(stanza)); |
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318 return true; |
6438
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diff
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|
319 end |
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|
320 |
6441
bcb1ea9047d3
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6438
diff
changeset
|
321 function handlers.get_default(origin, stanza, default, service) |
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diff
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|
322 local reply = st.reply(stanza) |
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diff
changeset
|
323 :tag("pubsub", { xmlns = xmlns_pubsub_owner }) |
6447
8c2dc2ac5a40
mod_pubsub: Fix retreival of node config defaults
Kim Alvefur <zash@zash.se>
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6446
diff
changeset
|
324 :tag("default") |
6448
f799b45cf735
pubsub.lib: Fix variable renaming issue
Kim Alvefur <zash@zash.se>
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6447
diff
changeset
|
325 :add_child(node_config_form:form(service.node_defaults)); |
6841
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|
326 origin.send(reply); |
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|
327 return true; |
6441
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6438
diff
changeset
|
328 end |
bcb1ea9047d3
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6438
diff
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|
329 |
8213
e1272aeef31c
mod_pubsub: Add item persistence using mod_storage_*’s archive store.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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8210
diff
changeset
|
330 local function create_encapsulating_item(id, payload, publisher, expose_publisher) |
8216
d80233ca006d
mod_pubsub: Pass xmlns correctly
Kim Alvefur <zash@zash.se>
parents:
8213
diff
changeset
|
331 local item = st.stanza("item", { id = id, xmlns = xmlns_pubsub }); |
8213
e1272aeef31c
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diff
changeset
|
332 item:add_child(payload); |
e1272aeef31c
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diff
changeset
|
333 if expose_publisher then |
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diff
changeset
|
334 item.attr.publisher = publisher; |
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diff
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|
335 end |
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|
336 return item; |
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changeset
|
337 end |
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diff
changeset
|
338 |
8318
d0a7fc7614de
mod_pubsub, mod_pep_plus: Rename simple_itemstore to reflect that it's based on archive storage
Kim Alvefur <zash@zash.se>
parents:
8317
diff
changeset
|
339 local function archive_itemstore(archive, config, user, node, expose_publisher) |
8213
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diff
changeset
|
340 module:log("debug", "Creation of itemstore for node %s with config %s", node, config); |
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diff
changeset
|
341 local get_set = {}; |
8308
ab189d3f55d1
mod_pubsub: Remove use of non-existent fields
Kim Alvefur <zash@zash.se>
parents:
8302
diff
changeset
|
342 function get_set:items() -- luacheck: ignore 212/self |
8300
7759eb130938
mod_pep_plus, mod_pubsub: Store node content in separate archive stores
Kim Alvefur <zash@zash.se>
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8298
diff
changeset
|
343 local data, err = archive:find(user); |
8213
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diff
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|
344 if not data then |
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diff
changeset
|
345 module:log("error", "Unable to get items: %s", err); |
e1272aeef31c
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diff
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|
346 return true; |
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347 end |
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348 module:log("debug", "Listed items %s", data); |
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349 return function() |
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350 local id, payload, when, publisher = data(); |
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351 if id == nil then |
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352 return; |
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353 end |
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354 local item = create_encapsulating_item(id, payload, publisher, expose_publisher); |
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355 return id, item; |
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356 end; |
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357 end |
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358 function get_set:get(key) -- luacheck: ignore 212/self |
8219
2e68ae095645
mod_pubsub: Store data in users store, node in 'with' metadata field
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359 local data, err = archive:find(user, { |
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360 key = key; |
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mod_pubsub: Workaround some storage modules without archive key deduplication
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361 -- Get the last item with that key, if the archive doesn't deduplicate |
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362 reverse = true, |
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363 limit = 1; |
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364 }); |
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365 if not data then |
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366 module:log("error", "Unable to get item: %s", err); |
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367 return nil, err; |
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368 end |
8296
e23328adca25
mod_pubsub: Remove workaround for SQL issue (fixed in becb593ed86d)
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369 local id, payload, when, publisher = data(); |
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370 module:log("debug", "Get item %s (published at %s by %s)", id, when, publisher); |
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371 if id == nil then |
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372 return nil; |
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373 end |
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374 return create_encapsulating_item(id, payload, publisher, expose_publisher); |
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375 end |
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376 function get_set:set(key, value) -- luacheck: ignore 212/self |
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377 module:log("debug", "Set item %s to %s for %s", key, value, node); |
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378 local data, err; |
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379 if value ~= nil then |
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380 local publisher = value.attr.publisher; |
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381 local payload = value.tags[1]; |
8300
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Kim Alvefur <zash@zash.se>
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diff
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|
382 data, err = archive:append(user, key, payload, time_now(), publisher); |
8213
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383 else |
8300
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Kim Alvefur <zash@zash.se>
parents:
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diff
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384 data, err = archive:delete(user, { key = key; }); |
8213
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parents:
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diff
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385 end |
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diff
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386 if not data then |
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diff
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|
387 module:log("error", "Unable to set item: %s", err); |
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388 return nil, err; |
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diff
changeset
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389 end |
8217
5f4e0d67b82a
util.pubsub: Catch overriden id from storage
Kim Alvefur <zash@zash.se>
parents:
8216
diff
changeset
|
390 return data; |
8213
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diff
changeset
|
391 end |
8301
e2ab440a3437
mod_pubsub: Ignore unused 'self' since the data used is an upvalue [luacheck]
Kim Alvefur <zash@zash.se>
parents:
8300
diff
changeset
|
392 function get_set:clear() -- luacheck: ignore 212/self |
8300
7759eb130938
mod_pep_plus, mod_pubsub: Store node content in separate archive stores
Kim Alvefur <zash@zash.se>
parents:
8298
diff
changeset
|
393 return archive:delete(user); |
8298
dd9fa511494a
mod_pubsub: Add method to clear data from a simple_itemstore
Kim Alvefur <zash@zash.se>
parents:
8296
diff
changeset
|
394 end |
8213
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395 return setmetatable(get_set, archive); |
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parents:
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diff
changeset
|
396 end |
8318
d0a7fc7614de
mod_pubsub, mod_pep_plus: Rename simple_itemstore to reflect that it's based on archive storage
Kim Alvefur <zash@zash.se>
parents:
8317
diff
changeset
|
397 _M.archive_itemstore = archive_itemstore; |
8213
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diff
changeset
|
398 |
5626
8416d4619d80
mod_pubsub: Split out handlers into a module library
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff
changeset
|
399 return _M; |