prosody-modules
9901d267f938
mod_carbons_copies/mod_carbons_copies.lua

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mod_carbons_copies/mod_carbons_copies.lua @ 889:9901d267f938

mod_carbons_copies: Initial commit; allow the user to enable v0 style carbons for clients which are not carbons-capable yet. This will not interfere with clients which have support for regular Message Carbons (XEP-0280). This module takes two optional parameters: carbons_copies_default - if set to true, copies will be enabled by default carbons_copies_adhoc - Enable Adhoc-commands to allow the user to enable/disable copies
author Michael Holzt <kju@fqdn.org>
date Sun, 23 Dec 2012 19:34:29 +0100
child 1343:7dbde05b48a9
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888:f8d08f8ed7de 889:9901d267f938
1 -- Send carbons v0 style copies of incoming messages to clients which
2 -- are not (yet) capable of Message Carbons (XEP-0280).
3 --
4 -- This extension integrates with the mod_carbons plugin in such a way
5 -- that a client capable of Message Carbons will not get a v0 copy.
6 --
7 -- This extension can be enabled for all users by default by setting
8 -- carbons_copies_default = true.
9 --
10 -- Alternatively or additionally setting carbons_copies_adhoc = true
11 -- will allow the user to enable or disable copies through Adhoc
12 -- commands.
13 --
14 -- Copyright (C) 2012 Michael Holzt
15 --
16 -- This file is MIT/X11 licensed.
17
18 local jid_split = require "util.jid".split;
19 local dm_load = require "util.datamanager".load;
20 local dm_store = require "util.datamanager".store;
21 local adhoc_new = module:require "adhoc".new;
22 local xmlns_carbons_v0 = "urn:xmpp:carbons:0";
23 local storename = "mod_carbons_copies";
24
25 local function toggle_copies(data, on)
26 local username, hostname, resource = jid_split(data.from);
27 dm_store(username, hostname, storename, { enabled = on });
28 end
29
30 local function adhoc_enable_copies(self, data, state)
31 toggle_copies(data, true);
32 return { info = "Copies are enabled for you now.\nPlease restart/reconnect clients.", status = "completed" };
33 end
34
35 local function adhoc_disable_copies(self, data, state)
36 toggle_copies(data, false);
37 return { info = "Copies are disabled for you now.\nPlease restart/reconnect clients.", status = "completed" };
38 end
39
40 module:hook("resource-bind", function(event)
41 local session = event.session;
42 local username, hostname, resource = jid_split(session.full_jid);
43
44 local store = dm_load(username, hostname, storename) or
45 { enabled =
46 module:get_option_boolean("carbons_copies_default") };
47
48 if store.enabled then
49 session.want_carbons = xmlns_carbons_v0;
50 module:log("debug", "%s enabling copies", session.full_jid);
51 end
52 end);
53
54 -- Adhoc-Support
55 if module:get_option_boolean("carbons_copies_adhoc") then
56 local enable_desc = adhoc_new("Carbons: Enable Copies",
57 "mod_carbons_copies#enable", adhoc_enable_copies);
58 local disable_desc = adhoc_new("Carbons: Disable Copies",
59 "mod_carbons_copies#disable", adhoc_disable_copies);
60
61 module:add_item("adhoc", enable_desc);
62 module:add_item("adhoc", disable_desc);
63 end