Mercurial > prosody-modules

annotate mod_devices/mod_devices.lua @ 5929:c094eabdb30f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_ping_muc: Describe the client facing protocol (from XEP-0045)
author Kim Alvefur <zash@zash.se>
date Thu, 11 Jul 2024 15:14:33 +0200
parents 4cf65afd90f4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3397
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 local it = require "util.iterators";
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 local new_id = require "util.id".medium;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
4 local max_user_devices = module:get_option_number("max_user_devices", 5);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6 local device_store = module:open_store("devices");
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 local device_map_store = module:open_store("devices", "map");
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 --- Helper functions
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
10
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 local function _compare_device_timestamps(a, b)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 return (a.last_activity_at or 0) < (b.last_activity_at or 0);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14 local function sorted_devices(devices)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 return it.sorted_pairs(devices, _compare_device_timestamps);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 local function new_device(username, alt_ids)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 local current_time = os.time();
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 local device = {
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 id = "dv-"..new_id();
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 created_at = current_time;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 last_activity = "created";
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 last_activity_at = current_time;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 alt_ids = alt_ids or {};
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 };
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 local devices = device_store:get(username);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 if not devices then
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30 devices = {};
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 devices[device.id] = device;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33 local devices_ordered = {};
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34 for id in sorted_devices(devices) do
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 table.insert(devices_ordered, id);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 if #devices_ordered > max_user_devices then
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38 -- Iterate through oldest devices that are above limit, backwards
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 for i = #devices_ordered, max_user_devices+1, -1 do
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 local id = table.remove(devices_ordered, i);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 devices[id] = nil;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
42 module:log("debug", "Removing old device for %s: %s", username, id);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
44 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45 device_store:set(username, devices);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 return device;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
48
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
49 local function get_device_with_alt_id(username, alt_id_type, alt_id)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50 local devices = device_store:get(username);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 if not devices then
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52 return nil;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
55 for _, device in pairs(devices) do
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
56 if device.alt_ids[alt_id_type] == alt_id then
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
57 return device;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
58 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
60 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
61
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
62 local function set_device_alt_id(username, device_id, alt_id_type, alt_id)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
63 local devices = device_store:get(username);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
64 if not devices or not devices[device_id] then
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
65 return nil, "no such device";
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
66 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
67 devices[device_id].alt_ids[alt_id_type] = alt_id;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
68 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
69
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
70 local function record_device_state(username, device_id, activity, time)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
71 local device = device_map_store:get(username, device_id);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
72 device.last_activity = activity;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
73 device.last_activity_at = time or os.time();
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
74 device_map_store:set(username, device_id, device);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
75 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
76
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
77 local function find_device(username, info)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
78 for _, alt_id_type in ipairs({ "resumption_token", "resource" }) do
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
79 local alt_id = info[alt_id_type];
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
80 if alt_id then
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
81 local device = get_device_with_alt_id(username, alt_id_type, alt_id);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
82 if device then
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
83 return device, alt_id_type;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
84 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
85 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
86 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
87 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
88
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
89 --- Information gathering
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
90
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
91 module:hook("pre-resource-bind", function (event)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
92 event.session.device_requested_resource = event.resource;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
93 end, 1000);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
94
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
95
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
96 local function store_resumption_token(session, stanza)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
97 session.device_requested_resume = stanza.attr.previd;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
98 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
99 module:hook_stanza("urn:xmpp:sm:2", "resume", store_resumption_token, 5);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
100 module:hook_stanza("urn:xmpp:sm:3", "resume", store_resumption_token, 5);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
101
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
102 --- Identify device after resource bind
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
103
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
104 module:hook("resource-bind", function (event)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
105 local info = {
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
106 resource = event.session.device_requested_resource;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
107 resumption_token = event.session.device_requested_resume;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
108 };
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
109 local device, source = find_device(event.session.username, info);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
110 if device then
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
111 event.session.log("debug", "Associated with device %s (from %s)", device.id, source);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
112 event.session.device_id = device.id;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
113 else
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
114 device = new_device(event.session.username, info);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
115 event.session.log("debug", "Creating new device %s for session", device.id);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
116 event.session.device_id = device.id;
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
117 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
118 record_device_state(event.session.username, device.id, "login");
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
119 end, 1000);
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
120
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
121 module:hook("resource-unbind", function (event)
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
122 if event.session.device_id then
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
123 record_device_state(event.session.username, event.session.device_id, "logout");
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
124 end
4cf65afd90f4 mod_devices: New module for device identification
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
125 end);