prosody
06453c564141
plugins/mod_announce.lua

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plugins/mod_announce.lua @ 13014:06453c564141

util.startup: Add prosody.started promise to easily execute code after startup To avoid a race where server-started fires before the promise function body is run (on next tick), I moved server-started to fire on the next tick, which seems sensible anyway. Errors are logged, I'm not sure if we ought to be doing something more here. I'm sure we'll find out.
author Matthew Wild <mwild1@gmail.com>
date Sat, 01 Apr 2023 11:56:38 +0100
parent 12977:74b9e05af71e
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 local st, jid = require "prosody.util.stanza", require "prosody.util.jid";
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10
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11 local hosts = prosody.hosts;
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12
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13 function send_to_online(message, host)
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14 local sessions;
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15 if host then
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16 sessions = { [host] = hosts[host] };
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17 else
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18 sessions = hosts;
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19 end
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20
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21 local c = 0;
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22 for hostname, host_session in pairs(sessions) do
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23 if host_session.sessions then
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24 message.attr.from = hostname;
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25 for username in pairs(host_session.sessions) do
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26 c = c + 1;
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27 message.attr.to = username.."@"..hostname;
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28 module:send(message);
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29 end
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30 end
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31 end
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32
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33 return c;
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34 end
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35
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36 module:default_permission("prosody:admin", ":send-announcement");
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37
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38 -- Old <message>-based jabberd-style announcement sending
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39 function handle_announcement(event)
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40 local stanza = event.stanza;
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41 -- luacheck: ignore 211/node
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42 local node, host, resource = jid.split(stanza.attr.to);
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43
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44 if resource ~= "announce/online" then
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45 return; -- Not an announcement
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46 end
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47
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48 if not module:may(":send-announcement", event) then
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49 -- Not allowed!
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50 module:log("warn", "Non-admin '%s' tried to send server announcement", stanza.attr.from);
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51 return;
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52 end
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53
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54 module:log("info", "Sending server announcement to all online users");
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55 local message = st.clone(stanza);
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56 message.attr.type = "headline";
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57 message.attr.from = host;
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58
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59 local c = send_to_online(message, host);
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60 module:log("info", "Announcement sent to %d online users", c);
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61 return true;
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62 end
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63 module:hook("message/host", handle_announcement);
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64
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65 -- Ad-hoc command (XEP-0133)
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66 local dataforms_new = require "prosody.util.dataforms".new;
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67 local announce_layout = dataforms_new{
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68 title = "Making an Announcement";
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69 instructions = "Fill out this form to make an announcement to all\nactive users of this service.";
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70
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71 { name = "FORM_TYPE", type = "hidden", value = "http://jabber.org/protocol/admin" };
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72 { name = "subject", type = "text-single", label = "Subject" };
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73 { name = "announcement", type = "text-multi", required = true, label = "Announcement" };
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74 };
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75
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76 function announce_handler(_, data, state)
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77 if state then
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78 if data.action == "cancel" then
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79 return { status = "canceled" };
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80 end
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81
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82 local fields = announce_layout:data(data.form);
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83
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84 module:log("info", "Sending server announcement to all online users");
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85 local message = st.message({type = "headline"}, fields.announcement):up()
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86 :tag("subject"):text(fields.subject or "Announcement");
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87
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88 local count = send_to_online(message, data.to);
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89
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90 module:log("info", "Announcement sent to %d online users", count);
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91 return { status = "completed", info = ("Announcement sent to %d online users"):format(count) };
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92 else
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93 return { status = "executing", actions = {"next", "complete", default = "complete"}, form = announce_layout }, "executing";
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94 end
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95 end
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96
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97 module:depends "adhoc";
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98 local adhoc_new = module:require "adhoc".new;
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99 local announce_desc = adhoc_new("Send Announcement to Online Users", "http://jabber.org/protocol/admin#announce", announce_handler, "admin");
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100 module:provides("adhoc", announce_desc);
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101