Mqtt Websocket

Intro

前篇提到如何簡單建置mqtt server and client
但若是網頁前端想屆接mqtt server
光開放tcp port是不夠的
必須再開放websocket port
若web使用http,mosquitto只需設置帳號密碼
若web使用https,mosquitto則要建置tls認證機制
此篇先已http為主題實作

Dependencies

sudo apt-get update
sudo apt-get install build-essential python quilt python-setuptools python3
sudo apt-get install openssl
sudo apt-get install libssl-dev
sudo apt-get install cmake
sudo apt-get install g++
sudo apt-get install libc-ares-dev
sudo apt-get install uuid-dev
sudo apt-get install daemon
sudo apt-get install libwebsockets-dev

Broker

與前篇不同，為了開啟websocket開關必須自行下載mosquitto原始碼進行編譯執行

install:

wget http://mosquitto.org/files/source/mosquitto-1.6.1.tar.gz
tar -zxvf mosquitto-1.6.1.tar.gz
cd mosquitto-1.6.1/

edit config:

sudo vim config.mk

開啟webwocket開關

WITH_WEBSOCKETS:=yes

build:

make
sudo make install

Set Up User/Password:

1. 建立一個帳號名為 User

   sudo mosquitto_passwd -c /etc/mosquitto/passwd User
   

2. 執行指令後輸入密碼

   Password: xxxx
   Reenter password: xxxx
   

edit mosquitto.conf:

port 1883
allow_anonymous false
password_file /etc/mosquitto/passwd
listener 9001
protocol websockets

start service with config:

mosquitto -c /etc/mosquitto/mosquitto.conf
// -d background