prosody
122f142da281
plugins/adhoc/mod_adhoc.lua

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plugins/adhoc/mod_adhoc.lua @ 4291:122f142da281

mod_adhoc: Add support for commands only executable by global administrators
author Florian Zeitz <florob@babelmonkeys.de>
date Thu, 02 Jun 2011 21:56:24 +0200
parent 3511:4495403470cb
child 4450:15547fba1f09
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1 -- Copyright (C) 2009 Thilo Cestonaro
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2 -- Copyright (C) 2009-2011 Florian Zeitz
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3 --
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4 -- This file is MIT/X11 licensed. Please see the
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5 -- COPYING file in the source package for more information.
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6 --
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7
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8 local st = require "util.stanza";
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9 local is_admin = require "core.usermanager".is_admin;
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10 local adhoc_handle_cmd = module:require "adhoc".handle_cmd;
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11 local xmlns_cmd = "http://jabber.org/protocol/commands";
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12 local xmlns_disco = "http://jabber.org/protocol/disco";
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13 local commands = {};
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14
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15 module:add_feature(xmlns_cmd);
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16
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17 module:hook("iq/host/"..xmlns_disco.."#info:query", function (event)
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18 local origin, stanza = event.origin, event.stanza;
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19 local node = stanza.tags[1].attr.node;
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20 if stanza.attr.type == "get" and node then
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21 if commands[node] then
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22 local privileged = is_admin(stanza.attr.from, stanza.attr.to);
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23 if (commands[node].permission == "admin" and privileged)
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24 or (commands[node].permission == "user") then
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25 reply = st.reply(stanza);
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26 reply:tag("query", { xmlns = xmlns_disco.."#info",
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27 node = node });
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28 reply:tag("identity", { name = commands[node].name,
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29 category = "automation", type = "command-node" }):up();
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30 reply:tag("feature", { var = xmlns_cmd }):up();
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31 reply:tag("feature", { var = "jabber:x:data" }):up();
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32 else
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33 reply = st.error_reply(stanza, "auth", "forbidden", "This item is not available to you");
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34 end
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35 origin.send(reply);
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36 return true;
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37 elseif node == xmlns_cmd then
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38 reply = st.reply(stanza);
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39 reply:tag("query", { xmlns = xmlns_disco.."#info",
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40 node = node });
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41 reply:tag("identity", { name = "Ad-Hoc Commands",
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42 category = "automation", type = "command-list" }):up();
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43 origin.send(reply);
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44 return true;
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45
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46 end
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47 end
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48 end);
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49
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50 module:hook("iq/host/"..xmlns_disco.."#items:query", function (event)
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51 local origin, stanza = event.origin, event.stanza;
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52 if stanza.attr.type == "get" and stanza.tags[1].attr.node
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53 and stanza.tags[1].attr.node == xmlns_cmd then
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54 local admin = is_admin(stanza.attr.from, stanza.attr.to);
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55 local global_admin = is_admin(stanza.attr.from);
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56 reply = st.reply(stanza);
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57 reply:tag("query", { xmlns = xmlns_disco.."#items",
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58 node = xmlns_cmd });
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59 for node, command in pairs(commands) do
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60 if (command.permission == "admin" and admin)
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61 or (command.permission == "global_admin" and global_admin)
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62 or (command.permission == "user") then
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63 reply:tag("item", { name = command.name,
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64 node = node, jid = module:get_host() });
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65 reply:up();
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66 end
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67 end
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68 origin.send(reply);
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69 return true;
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70 end
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71 end, 500);
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72
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73 module:hook("iq/host/"..xmlns_cmd..":command", function (event)
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74 local origin, stanza = event.origin, event.stanza;
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75 if stanza.attr.type == "set" then
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76 local node = stanza.tags[1].attr.node
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77 if commands[node] then
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78 local admin = is_admin(stanza.attr.from, stanza.attr.to);
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79 local global_admin = is_admin(stanza.attr.from);
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80 if (commands[node].permission == "admin" and not admin)
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81 or (commands[node].permission == "global_admin" and not global_admin) then
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82 origin.send(st.error_reply(stanza, "auth", "forbidden", "You don't have permission to execute this command"):up()
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83 :add_child(commands[node]:cmdtag("canceled")
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84 :tag("note", {type="error"}):text("You don't have permission to execute this command")));
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85 return true
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86 end
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87 -- User has permission now execute the command
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88 return adhoc_handle_cmd(commands[node], origin, stanza);
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89 end
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90 end
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91 end, 500);
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92
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93 local function handle_item_added(item)
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94 commands[item.node] = item;
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95 end
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96
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97 module:hook("item-added/adhoc", function (event)
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98 return handle_item_added(event.item);
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99 end, 500);
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100
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101 module:hook("item-removed/adhoc", function (event)
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102 commands[event.item.node] = nil;
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103 end, 500);
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104
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105 -- Pick up any items that are already added
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106 for _, item in ipairs(module:get_host_items("adhoc")) do
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107 handle_item_added(item);
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108 end