narutaro

MQTT in your browser

MQTT is probably best known as a lightweight messaging protocol implemented for small sensors, but there is actually a JavaScript implementation called MQTT.js. It's a JavaScript implementation, so of course it works in a browser. I think it's a great option for front-end engineers who are working with MQTT/IoT-related projects (for example, creating a dashboard to visualize MQTT data). In this article, I'd like to write about what I did when I tried to connect MQTT.js to the test server (broker) of Mosquitto™.

• MQTT.js
• Mosquitto™

rktalusani

1. sendScreenShot (front-end js) method uses subsciber.getImgData() method to capture screenshot of the subscriber (remote participant) and post it to the server.
2. On the server we use detectFace() method to detect the facial features in this image and we get a identifier for the detected face (id1)
3. we use detectFace() again with the image we want to compare with and we get identifier for the detected face (id2)
4. we use verifyFace() method and pass id1 and id2 as the inputs. Microsoft face API compares these two faces and provides a result that includes match/mismatch as well as a score.

Reference - 
1. getImgData() - https://tokbox.com/developer/sdks/js/reference/Subscriber.html#getImgData
2. Microsoft Face API - https://westus.dev.cognitive.microsoft.com/docs/services/563879b61984550e40cbbe8d/operations/563879b61984550f30395236

valterh4ck3r

import 'dart:async';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:intl/date_symbol_data_local.dart' as intl;
import 'package:intl/intl.dart' as intl;

class _PTBRMaterialLocalizationsDelegate
    extends LocalizationsDelegate<MaterialLocalizations> {

yoyosan

Problem

I've recently been hacked on my VPS(using Centos 7.6 and CWP up to date) and the following files/folders were created:

• /tmp/.ICEd-unix
• /var/tmp/.ICEd-unix
• /tmp/kdevtmpfsi
• /var/tmp/kinsing

The following processes were running and using 100% CPU and Memory:

onamfc

<?php

namespace App\Passport;

use App\User;
use Lcobucci\JWT\Builder;
use Lcobucci\JWT\Signer\Key;
use League\OAuth2\Server\CryptKey;
use Lcobucci\JWT\Signer\Rsa\Sha256;
use Laravel\Passport\Bridge\AccessToken as BaseToken;

cjgiridhar

package main

import "fmt"

func main() {
	// shoppingList is a map that has a map inside it
	shoppingList := make(map[string]map[string]int)

	// veggies key points to veggiesMap
	veggiesMap := map[string]int{"onion": 2, "orka": 3}

bludnic

/* SELECT test */
SELECT ID, reg_replace(post_content, '<aside class="mashsb-container(.*)">((.|\n)*)<\/aside>', '', TRUE, 2, 0) as content
FROM wp_posts
WHERE post_content REGEXP('<aside class="mashsb-container(.*)">((.|\n)*)<\/aside>')
LIMIT 1

/* Update */
UPDATE wp_posts
SET post_content = REGEXP_REPLACE('post_content', '<aside class="mashsb-container(.*)">((.|\n)*)<\/aside>', '')
WHERE ID = 469

rsudip90

package main

import (
	"database/sql"
	"encoding/json"
	"fmt"
	"log"
	"time"

	"github.com/go-sql-driver/mysql"

michael-grunder

<?php

$opt = getopt('', ['host:', 'port:', 'skey:', 'group:', 'consumer:', 'sleep:']);

$host = isset($opt['host']) ? $opt['host'] : 'localhost';
$port = isset($opt['port']) ? $opt['port'] : '6379';
$skey = isset($opt['skey']) ? $opt['skey'] : 'stream';
$group = isset($opt['group']) ? $opt['group'] : 'group';
$consumer = isset($opt['consumer']) ? $opt['consumer'] : 'Alice';
$sleep = isset($opt['sleep']) ? $opt['sleep'] : 100000;

aschmelyun

<template>
  <div class="wrapper">
    <div class="box" @scroll="handleScroll">
      <p>Your content here...</p>
    </div>
    <a href="#" v-if="hasScrolledToBottom">Show After Scrolling</a>
  </div>
</template>
<script>
  export default {