prosody
f15e23840780
plugins/adhoc/mod_adhoc.lua

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plugins/adhoc/mod_adhoc.lua @ 13124:f15e23840780

util.http: Implement parser for RFC 7239 Forwarded header Standardized and structured replacement for the X-Forwarded-For, X-Forwarded-Proto set of headers. Notably, this allows per-hop protocol information, unlike X-Forwarded-Proto which is always a single value for some reason.
author Kim Alvefur <zash@zash.se>
date Sat, 03 Jun 2023 16:15:52 +0200
parent 13097:6771acb8e857
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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 "prosody.util.iterators";
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9 local st = require "prosody.util.stanza";
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10 local jid_host = require "prosody.util.jid".host;
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11 local adhoc_handle_cmd = module:require "adhoc".handle_cmd;
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12 local xmlns_cmd = "http://jabber.org/protocol/commands";
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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 local function check_permissions(event, node, command, execute)
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18 return (command.permission == "check" and module:may("adhoc:"..node, event, not execute))
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19 or (command.permission == "local_user" and jid_host(event.stanza.attr.from) == module.host)
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20 or (command.permission == "any");
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21 end
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22
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23 module:hook("host-disco-info-node", function (event)
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24 local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
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25 if commands[node] then
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26 local command = commands[node];
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27 if check_permissions(event, node, command) then
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28 reply:tag("identity", { name = command.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 event.exists = true;
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33 else
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34 origin.send(st.error_reply(stanza, "auth", "forbidden", "This item is not available to you"));
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35 return true;
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36 end
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37 elseif node == xmlns_cmd then
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38 reply:tag("identity", { name = "Ad-Hoc Commands",
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39 category = "automation", type = "command-list" }):up();
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40 event.exists = true;
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41 end
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42 end);
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43
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44 module:hook("host-disco-items-node", function (event)
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45 local reply, disco_node = event.reply, event.node;
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46 if disco_node ~= xmlns_cmd then
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47 return;
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48 end
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49
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50 for node, command in it.sorted_pairs(commands) do
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51 if check_permissions(event, node, command) then
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52 reply:tag("item", { name = command.name,
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53 node = node, jid = module:get_host() });
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54 reply:up();
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55 end
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56 end
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57 event.exists = true;
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58 end);
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59
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60 module:hook("iq-set/host/"..xmlns_cmd..":command", function (event)
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61 local origin, stanza = event.origin, event.stanza;
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62 local node = stanza.tags[1].attr.node
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63 local command = commands[node];
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64 if command then
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65 if not check_permissions(event, node, command, true) then
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66 origin.send(st.error_reply(stanza, "auth", "forbidden", "You don't have permission to execute this command"):up()
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67 :add_child(command:cmdtag("canceled")
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68 :tag("note", {type="error"}):text("You don't have permission to execute this command")));
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69 return true
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70 end
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71 -- User has permission now execute the command
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72 adhoc_handle_cmd(command, origin, stanza);
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73 return true;
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74 end
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75 end, 500);
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76
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77 local function adhoc_added(event)
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78 local item = event.item;
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79 -- Dang this was noisy
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80 module:log("debug", "Command added by mod_%s: %q, %q", item._provided_by or "<unknown module>", item.name, item.node);
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81 commands[item.node] = item;
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82 end
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83
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84 local function adhoc_removed(event)
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85 commands[event.item.node] = nil;
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86 end
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87
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88 module:handle_items("adhoc", adhoc_added, adhoc_removed); -- COMPAT pre module:provides() introduced in 0.9
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89 module:handle_items("adhoc-provider", adhoc_added, adhoc_removed);