prosody
fe8abac62682
plugins/adhoc/mod_adhoc.lua

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plugins/adhoc/mod_adhoc.lua @ 9222:fe8abac62682

mod_adhoc: Simplify iq handling by hooking on iq-set/ instead of iq/.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Fri, 24 Aug 2018 20:34:00 +0200
parent 8563:50f2ad088589
child 9331:2f634cc02eac
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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 keys = require "util.iterators".keys;
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10 local array_collect = require "util.array".collect;
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11 local is_admin = require "core.usermanager".is_admin;
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12 local jid_split = require "util.jid".split;
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13 local adhoc_handle_cmd = module:require "adhoc".handle_cmd;
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14 local xmlns_cmd = "http://jabber.org/protocol/commands";
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15 local commands = {};
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16
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17 module:add_feature(xmlns_cmd);
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18
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19 module:hook("host-disco-info-node", function (event)
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20 local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
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21 if commands[node] then
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22 local from = stanza.attr.from;
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23 local privileged = is_admin(from, stanza.attr.to);
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24 local global_admin = is_admin(from);
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25 local username, hostname = jid_split(from);
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26 local command = commands[node];
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27 if (command.permission == "admin" and privileged)
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28 or (command.permission == "global_admin" and global_admin)
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29 or (command.permission == "local_user" and hostname == module.host)
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30 or (command.permission == "user") then
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31 reply:tag("identity", { name = command.name,
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32 category = "automation", type = "command-node" }):up();
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33 reply:tag("feature", { var = xmlns_cmd }):up();
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34 reply:tag("feature", { var = "jabber:x:data" }):up();
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35 event.exists = true;
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36 else
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37 origin.send(st.error_reply(stanza, "auth", "forbidden", "This item is not available to you"));
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38 return true;
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39 end
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40 elseif node == xmlns_cmd then
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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 event.exists = true;
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44 end
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45 end);
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46
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47 module:hook("host-disco-items-node", function (event)
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48 local stanza, reply, disco_node = event.stanza, event.reply, event.node;
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49 if disco_node ~= xmlns_cmd then
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50 return;
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51 end
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52
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53 local from = stanza.attr.from;
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54 local admin = is_admin(from, stanza.attr.to);
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55 local global_admin = is_admin(from);
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56 local username, hostname = jid_split(from);
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57 local nodes = array_collect(keys(commands)):sort();
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58 for _, node in ipairs(nodes) do
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59 local command = commands[node];
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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 == "local_user" and hostname == module.host)
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63 or (command.permission == "user") then
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64 reply:tag("item", { name = command.name,
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65 node = node, jid = module:get_host() });
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66 reply:up();
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67 end
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68 end
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69 event.exists = true;
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70 end);
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71
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72 module:hook("iq-set/host/"..xmlns_cmd..":command", function (event)
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73 local origin, stanza = event.origin, event.stanza;
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74 local node = stanza.tags[1].attr.node
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75 local command = commands[node];
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76 if command then
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77 local from = stanza.attr.from;
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78 local admin = is_admin(from, stanza.attr.to);
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79 local global_admin = is_admin(from);
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80 local username, hostname = jid_split(from);
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81 if (command.permission == "admin" and not admin)
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82 or (command.permission == "global_admin" and not global_admin)
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83 or (command.permission == "local_user" and hostname ~= module.host) then
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84 origin.send(st.error_reply(stanza, "auth", "forbidden", "You don't have permission to execute this command"):up()
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85 :add_child(commands[node]:cmdtag("canceled")
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86 :tag("note", {type="error"}):text("You don't have permission to execute this command")));
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87 return true
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88 end
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89 -- User has permission now execute the command
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90 adhoc_handle_cmd(commands[node], origin, stanza);
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91 return true;
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92 end
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93 end, 500);
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94
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95 local function adhoc_added(event)
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96 local item = event.item;
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97 commands[item.node] = item;
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98 end
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99
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100 local function adhoc_removed(event)
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101 commands[event.item.node] = nil;
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102 end
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103
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104 module:handle_items("adhoc", adhoc_added, adhoc_removed);
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105 module:handle_items("adhoc-provider", adhoc_added, adhoc_removed);