Mercurial > prosody-modules

annotate mod_pubsub_mqtt/mod_pubsub_mqtt.lua @ 5598:b496ebc12aed

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_http_oauth2: Add titles and descriptions to registration schema Since it is exposed publicly, it can serve as documentation.
author Kim Alvefur <zash@zash.se>
date Fri, 14 Jul 2023 16:04:11 +0200
parents 85a7304cfea1
children 801f64e6d4e9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 module:set_global();
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 local mqtt = module:require "mqtt";
5113
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
4 local id = require "util.id";
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 local st = require "util.stanza";
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6
5113
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
7 local function tostring_content(item)
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
8 return tostring(item[1]);
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
9 end
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
10
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
11 local data_translators = setmetatable({
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
12 utf8 = {
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
13 from_item = function (item)
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
14 return item:find("{https://prosody.im/protocol/data}data#");
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
15 end;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
16 to_item = function (payload)
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
17 return st.stanza("item", { xmlns = "http://jabber.org/protocol/pubsub", id = id.medium() })
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
18 :text_tag("data", payload, { xmlns = "https://prosody.im/protocol/data" })
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
19 end;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
20 };
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
21 json = {
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
22 from_item = function (item)
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
23 return item:find("{urn:xmpp:json:0}json#");
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
24 end;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
25 to_item = function (payload)
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
26 return st.stanza("item", { xmlns = "http://jabber.org/protocol/pubsub", id = id.medium() })
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
27 :text_tag("json", payload, { xmlns = "urn:xmpp:json:0" });
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
28 end;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
29 };
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
30 atom_title = {
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
31 from_item = function (item)
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
32 return item:find("{http://www.w3.org/2005/Atom}entry/title#");
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
33 end;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
34 to_item = function (payload)
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
35 return st.stanza("item", { xmlns = "http://jabber.org/protocol/pubsub", id = id.medium() })
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
36 :tag("entry", { xmlns = "http://www.w3.org/2005/Atom" })
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
37 :text_tag("title", payload, { type = "text" });
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
38 end;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
39 };
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
40 }, {
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
41 __index = function () return { from_item = tostring }; end;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
42 });
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
43
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
44 local pubsub_services = {};
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45 local pubsub_subscribers = {};
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 local packet_handlers = {};
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
48 function handle_packet(session, packet)
5112
9499b88f3453 mod_pubsub_mqtt: Fix some inappropriate log levels
Matthew Wild <mwild1@gmail.com>
parents: 5111
diff changeset
49 module:log("debug", "MQTT packet received! Length: %d", packet.length);
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50 for k,v in pairs(packet) do
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 module:log("debug", "MQTT %s: %s", tostring(k), tostring(v));
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 local handler = packet_handlers[packet.type];
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54 if not handler then
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
55 module:log("warn", "Unhandled command: %s", tostring(packet.type));
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
56 return;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
57 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
58 handler(session, packet);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
60
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
61 function packet_handlers.connect(session, packet)
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
62 session.conn:write(mqtt.serialize_packet{
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
63 type = "connack";
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
64 data = string.char(0x00, 0x00);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
65 });
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
66 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
67
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
68 function packet_handlers.disconnect(session, packet)
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
69 session.conn:close();
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
70 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
71
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
72 function packet_handlers.publish(session, packet)
5112
9499b88f3453 mod_pubsub_mqtt: Fix some inappropriate log levels
Matthew Wild <mwild1@gmail.com>
parents: 5111
diff changeset
73 module:log("info", "PUBLISH to %s", packet.topic);
5113
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
74 local host, payload_type, node = packet.topic:match("^([^/]+)/([^/]+)/(.+)$");
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
75 if not host then
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
76 module:log("warn", "Invalid topic format - expected: HOST/TYPE/NODE");
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
77 return;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
78 end
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
79 local pubsub = pubsub_services[host];
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
80 if not pubsub then
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
81 module:log("warn", "Unable to locate host/node: %s", packet.topic);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
82 return;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
83 end
5113
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
84
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
85 local payload_translator = data_translators[payload_type];
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
86 if not payload_translator or not payload_translator.to_item then
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
87 module:log("warn", "Unsupported payload type '%s' on topic '%s'", payload_type, packet.topic);
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
88 return;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
89 end
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
90
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
91 local payload_item = payload_translator.to_item(packet.data);
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
92 local ok, err = pubsub:publish(node, true, payload_item.attr.id, payload_item);
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
93 if not ok then
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
94 module:log("warn", "Error publishing MQTT data: %s", tostring(err));
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
95 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
96 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
97
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
98 function packet_handlers.subscribe(session, packet)
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
99 for _, topic in ipairs(packet.topics) do
5112
9499b88f3453 mod_pubsub_mqtt: Fix some inappropriate log levels
Matthew Wild <mwild1@gmail.com>
parents: 5111
diff changeset
100 module:log("info", "SUBSCRIBE to %s", topic);
5113
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
101 local host, payload_type, node = topic:match("^([^/]+)/([^/]+)/(.+)$");
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
102 if not host then
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
103 module:log("warn", "Invalid topic format - expected: HOST/TYPE/NODE");
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
104 return;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
105 end
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
106 local pubsub = pubsub_subscribers[host];
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
107 if not pubsub then
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
108 module:log("warn", "Unable to locate host/node: %s", topic);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
109 return;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
110 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
111 local node_subs = pubsub[node];
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
112 if not node_subs then
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
113 node_subs = {};
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
114 pubsub[node] = node_subs;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
115 end
5113
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
116 session.subscriptions[topic] = payload_type;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
117 node_subs[session] = payload_type;
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
118 end
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1309
diff changeset
119
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
120 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
121
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
122 function packet_handlers.pingreq(session, packet)
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
123 session.conn:write(mqtt.serialize_packet{type = "pingresp"});
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
124 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
125
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
126 local sessions = {};
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
127
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
128 local mqtt_listener = {};
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
129
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
130 function mqtt_listener.onconnect(conn)
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
131 sessions[conn] = {
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
132 conn = conn;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
133 stream = mqtt.new_stream();
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
134 subscriptions = {};
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
135 };
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
136 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
137
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
138 function mqtt_listener.onincoming(conn, data)
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
139 local session = sessions[conn];
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
140 if session then
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
141 local packets = session.stream:feed(data);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
142 for i = 1, #packets do
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
143 handle_packet(session, packets[i]);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
144 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
145 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
146 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
147
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
148 function mqtt_listener.ondisconnect(conn)
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
149 local session = sessions[conn];
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
150 for topic in pairs(session.subscriptions) do
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
151 local host, node = topic:match("^([^/]+)/(.+)$");
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
152 local subs = pubsub_subscribers[host];
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
153 if subs then
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
154 local node_subs = subs[node];
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
155 if node_subs then
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
156 node_subs[session] = nil;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
157 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
158 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
159 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
160 sessions[conn] = nil;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
161 module:log("debug", "MQTT client disconnected");
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
162 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
163
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
164 module:provides("net", {
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
165 default_port = 1883;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
166 listener = mqtt_listener;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
167 });
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
168
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
169 function module.add_host(module)
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
170 local pubsub_module = hosts[module.host].modules.pubsub
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
171 if pubsub_module then
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
172 module:log("debug", "MQTT enabled for %s", module.host);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
173 module:depends("pubsub");
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
174 pubsub_services[module.host] = assert(pubsub_module.service);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
175 local subscribers = {};
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
176 pubsub_subscribers[module.host] = subscribers;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
177 local function handle_publish(event)
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
178 -- Build MQTT packet
5113
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
179 local packet_types = setmetatable({}, {
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
180 __index = function (self, payload_type)
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
181 local packet = mqtt.serialize_packet{
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
182 type = "publish";
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
183 id = "\000\000";
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
184 topic = module.host.."/"..payload_type.."/"..event.node;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
185 data = data_translators[payload_type].from_item(event.item) or "";
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
186 };
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
187 rawset(self, packet);
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
188 return packet;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
189 end;
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
190 });
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
191 -- Broadcast to subscribers
5113
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
192 module:log("debug", "Broadcasting PUBLISH to subscribers of %s/*/%s", module.host, event.node);
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
193 for session, payload_type in pairs(subscribers[event.node] or {}) do
85a7304cfea1 mod_pubsub_mqtt: Support atom_title payload type
Matthew Wild <mwild1@gmail.com>
parents: 5112
diff changeset
194 session.conn:write(packet_types[payload_type]);
1240
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
195 module:log("debug", "Sent to %s", tostring(session));
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
196 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
197 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
198 pubsub_services[module.host].events.add_handler("item-published", handle_publish);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
199 function module.unload()
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
200 module:log("debug", "MQTT disabled for %s", module.host);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
201 pubsub_module.service.remove_handler("item-published", handle_publish);
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
202 pubsub_services[module.host] = nil;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
203 pubsub_subscribers[module.host] = nil;
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
204 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
205 end
e0d97eb52ab8 mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
206 end