prosody
f5d2e58fbefa
plugins/mod_announce.lua

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plugins/mod_announce.lua @ 6937:f5d2e58fbefa

util.session: What is a session?
author Kim Alvefur <zash@zash.se>
date Tue, 24 Nov 2015 19:00:43 +0100
parent 5776:bd0ff8ae98a8
child 8680:1cc9a293e958
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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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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 origin, stanza = event.origin, 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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47 if not is_admin(stanza.attr.from) 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(self, 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
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95 return true;
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96 end
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97
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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