prosody
0dc2c3530d64
plugins/adhoc/mod_adhoc.lua

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plugins/adhoc/mod_adhoc.lua @ 11907:0dc2c3530d64

MUC: Add 'muc-pre-set-affiliation' event, allowing to block change or modify data
author Matthew Wild <mwild1@gmail.com>
date Tue, 16 Nov 2021 11:41:08 +0000
parent 11209:f6661fac7e9a
child 12387:05c250fa335a
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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 it = require "util.iterators";
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9 local st = require "util.stanza";
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10 local is_admin = require "core.usermanager".is_admin;
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11 local jid_host = require "util.jid".host;
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12 local adhoc_handle_cmd = module:require "adhoc".handle_cmd;
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13 local xmlns_cmd = "http://jabber.org/protocol/commands";
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14 local commands = {};
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15
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16 module:add_feature(xmlns_cmd);
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17
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18 module:hook("host-disco-info-node", function (event)
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19 local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
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20 if commands[node] then
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21 local from = stanza.attr.from;
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22 local privileged = is_admin(from, stanza.attr.to);
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23 local global_admin = is_admin(from);
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24 local hostname = jid_host(from);
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25 local command = commands[node];
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26 if (command.permission == "admin" and privileged)
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27 or (command.permission == "global_admin" and global_admin)
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28 or (command.permission == "local_user" and hostname == module.host)
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29 or (command.permission == "any") then
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30 reply:tag("identity", { name = command.name,
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31 category = "automation", type = "command-node" }):up();
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32 reply:tag("feature", { var = xmlns_cmd }):up();
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33 reply:tag("feature", { var = "jabber:x:data" }):up();
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34 event.exists = true;
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35 else
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36 origin.send(st.error_reply(stanza, "auth", "forbidden", "This item is not available to you"));
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37 return true;
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38 end
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39 elseif node == xmlns_cmd then
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40 reply:tag("identity", { name = "Ad-Hoc Commands",
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41 category = "automation", type = "command-list" }):up();
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42 event.exists = true;
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43 end
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44 end);
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45
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46 module:hook("host-disco-items-node", function (event)
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47 local stanza, reply, disco_node = event.stanza, event.reply, event.node;
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48 if disco_node ~= xmlns_cmd then
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49 return;
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50 end
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51
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52 local from = stanza.attr.from;
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53 local admin = is_admin(from, stanza.attr.to);
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54 local global_admin = is_admin(from);
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55 local hostname = jid_host(from);
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56 for node, command in it.sorted_pairs(commands) do
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57 if (command.permission == "admin" and admin)
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58 or (command.permission == "global_admin" and global_admin)
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59 or (command.permission == "local_user" and hostname == module.host)
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60 or (command.permission == "any") then
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61 reply:tag("item", { name = command.name,
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62 node = node, jid = module:get_host() });
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63 reply:up();
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64 end
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65 end
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66 event.exists = true;
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67 end);
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68
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69 module:hook("iq-set/host/"..xmlns_cmd..":command", function (event)
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70 local origin, stanza = event.origin, event.stanza;
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71 local node = stanza.tags[1].attr.node
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72 local command = commands[node];
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73 if command then
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74 local from = stanza.attr.from;
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75 local admin = is_admin(from, stanza.attr.to);
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76 local global_admin = is_admin(from);
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77 local hostname = jid_host(from);
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78 if (command.permission == "admin" and not admin)
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79 or (command.permission == "global_admin" and not global_admin)
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80 or (command.permission == "local_user" and hostname ~= module.host) then
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81 origin.send(st.error_reply(stanza, "auth", "forbidden", "You don't have permission to execute this command"):up()
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82 :add_child(commands[node]:cmdtag("canceled")
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83 :tag("note", {type="error"}):text("You don't have permission to execute this command")));
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84 return true
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85 end
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86 -- User has permission now execute the command
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87 adhoc_handle_cmd(commands[node], origin, stanza);
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88 return true;
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89 end
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90 end, 500);
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91
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92 local function adhoc_added(event)
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93 local item = event.item;
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94 -- Dang this was noicy
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95 module:log("debug", "Command added by mod_%s: %q, %q", item._provided_by or "<unknown module>", item.name, item.node);
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96 commands[item.node] = item;
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97 end
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98
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99 local function adhoc_removed(event)
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100 commands[event.item.node] = nil;
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101 end
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102
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103 module:handle_items("adhoc", adhoc_added, adhoc_removed); -- COMPAT pre module:provides() introduced in 0.9
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104 module:handle_items("adhoc-provider", adhoc_added, adhoc_removed);