prosody-modules: mod_pubsub_mqtt/mod_pubsub

annotate mod_pubsub_mqtt/mod_pubsub_mqtt.lua @ 5596:d2561c1d26f5

mod_client_management: Allow revoking a specific client version Could be useful in case of a security issue affecting a particular version. Even if in that case, the more likely use case is revoking all older versions except the fixed one(s), this can be done with a loop or improved later.

author	Kim Alvefur <zash@zash.se>
date	Fri, 14 Jul 2023 15:16:06 +0200
parents	85a7304cfea1
children	801f64e6d4e9

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

Mercurial > prosody-modules

annotate mod_pubsub_mqtt/mod_pubsub_mqtt.lua @ 5596:d2561c1d26f5