Mercurial > prosody-modules
annotate mod_pubsub_mqtt/mqtt.lib.lua @ 2684:e491a15d7621
mod_http_upload: Switch to using a map store
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Thu, 13 Apr 2017 22:18:28 +0200 |
parents | 7dbde05b48a9 |
children | d2a84e6aed2b |
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 local bit = require "bit"; |
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 stream_mt = {}; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
4 stream_mt.__index = stream_mt; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
5 |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
6 function stream_mt:read_bytes(n_bytes) |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
7 module:log("debug", "Reading %d bytes... (buffer: %d)", n_bytes, #self.buffer); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
8 local data = self.buffer; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
9 if not data then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
10 module:log("debug", "No data, pausing."); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
11 data = coroutine.yield(); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
12 module:log("debug", "Have %d bytes of data now (want %d)", #data, n_bytes); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
13 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
14 if #data >= n_bytes then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
15 data, self.buffer = data:sub(1, n_bytes), data:sub(n_bytes+1); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
16 elseif #data < n_bytes then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
17 module:log("debug", "Not enough data (only %d bytes out of %d), pausing.", #data, n_bytes); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
18 self.buffer = data..coroutine.yield(); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
19 module:log("debug", "Now we have %d bytes, reading...", #data); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
20 return self:read_bytes(n_bytes); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
21 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
22 module:log("debug", "Returning %d bytes (buffer: %d)", #data, #self.buffer); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
23 return data; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
24 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
25 |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
26 function stream_mt:read_string() |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
27 local len1, len2 = self:read_bytes(2):byte(1,2); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
28 local len = bit.lshift(len1, 8) + len2; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
29 return self:read_bytes(len), len+2; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
30 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
31 |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
32 local packet_type_codes = { |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
33 "connect", "connack", |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
34 "publish", "puback", "pubrec", "pubrel", "pubcomp", |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
35 "subscribe", "subak", "unsubscribe", "unsuback", |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
36 "pingreq", "pingresp", |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
37 "disconnect" |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
38 }; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
39 |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
40 function stream_mt:read_packet() |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
41 local packet = {}; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
42 local header = self:read_bytes(1):byte(); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
43 packet.type = packet_type_codes[bit.rshift(bit.band(header, 0xf0), 4)]; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
44 packet.dup = bit.band(header, 0x08) == 0x08; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
45 packet.qos = bit.rshift(bit.band(header, 0x06), 1); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
46 packet.retain = bit.band(header, 0x01) == 0x01; |
1343
7dbde05b48a9
all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
1240
diff
changeset
|
47 |
1240
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
48 -- Get length |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
49 local length, multiplier = 0, 1; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
50 repeat |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
51 local digit = self:read_bytes(1):byte(); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
52 length = length + bit.band(digit, 0x7f)*multiplier; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
53 multiplier = multiplier*128; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
54 until bit.band(digit, 0x80) == 0; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
55 packet.length = length; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
56 if packet.type == "connect" then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
57 if self:read_string() ~= "MQIsdp" then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
58 module:log("warn", "Unexpected packet signature!"); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
59 packet.type = nil; -- Invalid packet |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
60 else |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
61 packet.version = self:read_bytes(1):byte(); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
62 packet.connect_flags = self:read_bytes(1):byte(); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
63 packet.keepalive_timer = self:read_bytes(1):byte(); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
64 length = length - 11; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
65 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
66 elseif packet.type == "publish" then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
67 packet.topic = self:read_string(); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
68 length = length - (#packet.topic+2); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
69 if packet.qos == 1 or packet.qos == 2 then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
70 packet.id = self:read_bytes(2); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
71 length = length - 2; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
72 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
73 elseif packet.type == "subscribe" then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
74 if packet.qos == 1 or packet.qos == 2 then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
75 packet.id = self:read_bytes(2); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
76 length = length - 2; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
77 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
78 local topics = {}; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
79 while length > 0 do |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
80 local topic, len = self:read_string(); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
81 table.insert(topics, topic); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
82 self:read_bytes(1); -- QoS not used |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
83 length = length - (len+1); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
84 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
85 packet.topics = topics; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
86 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
87 if length > 0 then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
88 packet.data = self:read_bytes(length); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
89 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
90 return packet; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
91 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
92 |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
93 local function new_parser(self) |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
94 return coroutine.wrap(function (data) |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
95 self.buffer = data; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
96 while true do |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
97 data = coroutine.yield(self:read_packet()); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
98 module:log("debug", "Parser: %d new bytes", #data); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
99 self.buffer = (self.buffer or "")..data; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
100 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
101 end); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
102 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
103 |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
104 function stream_mt:feed(data) |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
105 module:log("debug", "Feeding %d bytes", #data); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
106 local packets = {}; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
107 local packet = self.parser(data); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
108 while packet do |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
109 module:log("debug", "Received packet"); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
110 table.insert(packets, packet); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
111 packet = self.parser(""); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
112 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
113 module:log("debug", "Returning %d packets", #packets); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
114 return packets; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
115 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
116 |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
117 local function new_stream() |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
118 local stream = setmetatable({}, stream_mt); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
119 stream.parser = new_parser(stream); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
120 return stream; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
121 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
122 |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
123 local function serialize_packet(packet) |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
124 local type_num = 0; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
125 for i, v in ipairs(packet_type_codes) do -- FIXME: I'm so tired right now. |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
126 if v == packet.type then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
127 type_num = i; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
128 break; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
129 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
130 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
131 local header = string.char(bit.lshift(type_num, 4)); |
1343
7dbde05b48a9
all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
1240
diff
changeset
|
132 |
1240
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
133 if packet.type == "publish" then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
134 local topic = packet.topic or ""; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
135 packet.data = string.char(bit.band(#topic, 0xff00), bit.band(#topic, 0x00ff))..topic..packet.data; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
136 elseif packet.type == "suback" then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
137 local t = {}; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
138 for _, topic in ipairs(packet.topics) do |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
139 table.insert(t, string.char(bit.band(#topic, 0xff00), bit.band(#topic, 0x00ff))..topic.."\000"); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
140 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
141 packet.data = table.concat(t); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
142 end |
1343
7dbde05b48a9
all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
1240
diff
changeset
|
143 |
1240
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
144 -- Get length |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
145 local length = #(packet.data or ""); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
146 repeat |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
147 local digit = length%128; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
148 length = math.floor(length/128); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
149 if length > 0 then |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
150 digit = bit.bor(digit, 0x80); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
151 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
152 header = header..string.char(digit); -- FIXME: ... |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
153 until length <= 0; |
1343
7dbde05b48a9
all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents:
1240
diff
changeset
|
154 |
1240
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
155 return header..(packet.data or ""); |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
156 end |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
157 |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
158 return { |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
159 new_stream = new_stream; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
160 serialize_packet = serialize_packet; |
e0d97eb52ab8
mod_pubsub_mqtt: MQTT (a lightweight binary pubsub protocol) interface for mod_pubsub
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
161 }; |