prosody
0.11.11
plugins/mod_announce.lua

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plugins/mod_announce.lua @ 12089:76b4e3f12b53 0.11 0.11.11

mod_pep: Wipe pubsub service on user deletion Data is already wiped from storage, but this ensures everything is properly unsubscribed, possibly with notifications etc. Clears recipient cache as well, since it is no longer relevant.
author Kim Alvefur <zash@zash.se>
date Thu, 04 Nov 2021 01:00:06 +0100
parent 10026:1117138fa372
child 10545:2fbcdf6da331
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rev   line source
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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 "util.stanza", require "util.jid";
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10
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11 local hosts = prosody.hosts;
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12 local is_admin = require "core.usermanager".is_admin;
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13
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14 function send_to_online(message, host)
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15 local sessions;
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16 if host then
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17 sessions = { [host] = hosts[host] };
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18 else
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19 sessions = hosts;
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20 end
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21
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22 local c = 0;
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23 for hostname, host_session in pairs(sessions) do
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24 if host_session.sessions then
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25 message.attr.from = hostname;
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26 for username in pairs(host_session.sessions) do
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27 c = c + 1;
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28 message.attr.to = username.."@"..hostname;
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29 module:send(message);
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30 end
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31 end
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32 end
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33
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34 return c;
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35 end
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36
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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 local node, host, resource = jid.split(stanza.attr.to);
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42
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43 if resource ~= "announce/online" then
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44 return; -- Not an announcement
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45 end
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46
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47 if not is_admin(stanza.attr.from, host) then
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48 -- Not an admin? Not allowed!
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49 module:log("warn", "Non-admin '%s' tried to send server announcement", stanza.attr.from);
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50 return;
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51 end
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52
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53 module:log("info", "Sending server announcement to all online users");
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54 local message = st.clone(stanza);
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55 message.attr.type = "headline";
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56 message.attr.from = host;
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57
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58 local c = send_to_online(message, host);
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59 module:log("info", "Announcement sent to %d online users", c);
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60 return true;
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61 end
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62 module:hook("message/host", handle_announcement);
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63
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64 -- Ad-hoc command (XEP-0133)
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65 local dataforms_new = require "util.dataforms".new;
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66 local announce_layout = dataforms_new{
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67 title = "Making an Announcement";
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68 instructions = "Fill out this form to make an announcement to all\nactive users of this service.";
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69
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70 { name = "FORM_TYPE", type = "hidden", value = "http://jabber.org/protocol/admin" };
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71 { name = "subject", type = "text-single", label = "Subject" };
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72 { name = "announcement", type = "text-multi", required = true, label = "Announcement" };
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73 };
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74
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75 function announce_handler(_, data, state)
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76 if state then
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77 if data.action == "cancel" then
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78 return { status = "canceled" };
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79 end
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80
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81 local fields = announce_layout:data(data.form);
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82
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83 module:log("info", "Sending server announcement to all online users");
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84 local message = st.message({type = "headline"}, fields.announcement):up()
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85 :tag("subject"):text(fields.subject or "Announcement");
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86
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87 local count = send_to_online(message, data.to);
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88
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89 module:log("info", "Announcement sent to %d online users", count);
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90 return { status = "completed", info = ("Announcement sent to %d online users"):format(count) };
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91 else
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92 return { status = "executing", actions = {"next", "complete", default = "complete"}, form = announce_layout }, "executing";
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93 end
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94 end
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95
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96 module:depends "adhoc";
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97 local adhoc_new = module:require "adhoc".new;
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98 local announce_desc = adhoc_new("Send Announcement to Online Users", "http://jabber.org/protocol/admin#announce", announce_handler, "admin");
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99 module:provides("adhoc", announce_desc);
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100