My wp-ShowGithubFile plugin is accepted by WordPress today!

Though I wrote the plugin initially for personal use, now the same is available for you to use in your WordPress sites.

Link: https://wordpress.org/plugins/wp-showgithubfile/

You can either download it from the directory, or install directly within your WordPress installation. Here is a live demo of the plugin:


package com.company;

import java.util.Arrays;

public class Main {

    public static void main(String[] args) {

        // New Customer wants to buy a bottle
        Customer customer = new Customer();

        // Customer Registration
        customer.RegisterMe("+919999999999", PhoneType.APP ); // App or SMS?

        // Assuming Registration successful

        // Customer requests the token using a mobile app, or by sending SMS
        String CustomerToken =  customer.giveMeAToken("695000"); // Pin code

        if (CustomerToken != null) {
            //  Assuming Customer gets the token and he goes to the Outlet
        } else {
            // Seems there are no slots available. Try again later.
            return;
        }


        // At the Outlet, sales guy is scanning the token
        Boolean OutletVerification = new Outlet().isTheTokenShownByCustomerValid(CustomerToken);

        if (OutletVerification) {
            // Assuming the validation is success
            System.out.println("Customer says: Wow, I got the bottle!");
        } else {
            System.out.println("Sales guy says: Get lost!");
        }
    }

    public enum PhoneType { APP, SMS };

    private static class VQServer {
        // Database
        public String[] tokenDB = { "A", "B","C","D","E" };
        public String[] Outlets = {"Outlet1", "Outlet2", "Outlet3"};

        public void registerCustomer(String phoneNumber, PhoneType phonetype) {
            // Register customer

        }
        public String requestNewTokenByCustomer(String pinCode) {
            // Logic for - Token generation logic
            // Logic for - Find nearest outlet using pinCode

            // Send token by SMS if PhoneType is SMS

            return "C"; // Sample token
        }

        public Boolean validateTokenByOutlet(String token) {
            return Arrays.asList(tokenDB).contains(token); // Validate
        }
    };

    static VQServer vqServer = new VQServer();

    private static class Customer {

        public String giveMeAToken(String pinCode) {
            return vqServer.requestNewTokenByCustomer(pinCode);
        }
        public void RegisterMe(String phoneNumber, PhoneType phonetype) {
            // Customer Registration
            vqServer.registerCustomer(phoneNumber, phonetype);
        }
    }
    private static class Outlet {
        public Boolean isTheTokenShownByCustomerValid(String token) {
            return vqServer.validateTokenByOutlet(token);
        }
    }
}

View in GitHub | Made with wp-showgithubfile plugin

June 9, 2020

My Groovy HelloScript contribution to community

Here goes my contribution to HelloScript project by Praseed Pai.

GitHub: https://github.com/praseedpai/HelloScript_files/blob/master/Groovy/HelloScript.groovy

Source Code:


/**
 * HelloScript.groovy
 */

//  A Simple Console Output

    println "Hello World"

//  Some more
    print ("Hello World")
    System.out.println("K-Mug"); // Java style also works

// Declare variables
    def a = 100 // a number, def is about scope
    b = 100; // another number
    year = "Twenty Twenty" // a string

// String formatting & interpolation
    println "This is ${a}, ${b}, and " + year;

// Reassign a variable
    year = 2008; // dynamic typing

// if-else
    if (year > 2008)
        println "Welcome to the future - yes, we have flying cars!"
    else if (year < 2008)
        printLN "The past - please don't change anything. Don't step on any butterflies. And for the sake of all thats good and holy, stay away from your parents!"
    else
        println "Anything wrong with your time machine? You have not gone anywhere, kiddo."


// Range based for loop
for (i in 0..3) {
    println "$i Hi there!"
}

// Copying range value to a variable
    range_array = (0..10)
    print range_array;

// Array demo
    rules = ['Do no harm','Obey','Continue Living']
    println rules;

    rules << "Be Honest" // add one more item
    println rules

// Array demo, with mixed types
    more_rules = ['Do no harm','Obey','Continue Living', 404, 403, 500, 100f]
    println more_rules;

// Loop through Array
    i = 0
    while (i < rules.size()) {
        print "Rule " + (i + 1) + " : " + rules[i]
        i += 1
    }

    println() // just a newline

// Associating array
    associated = [
        'hello'    :    'world',
        'foo'    :    'bar',
        'lorem'    :    'ipsum'
    ]

    for (ele in associated) {
        print ele.key + " : " + ele.value
    }

    println() // just a newline

// Example of a Nested Loop
// To calculate Pythagorean Triplets
    n = 10
    println "-------------------------------------"
    for (va in (1..n)) {
        for (vb in (va..n)) {
            Integer c_square = va**2 + vb**2
            Integer vc = Math.sqrt(c_square)
            if ((c_square - vc**2) == 0) {
                println va + " " + vb + " " + vc
            }
        }
    }
    println "----------------------------------"

// Iterating over a list using range and size
    println "-------------------------------------"
    fibonacci = [0,1,1,2,3,5,8,13,21]
    for (i in (0..fibonacci.size()-1)) {
        println i + " " + fibonacci[i]
    }
    println "---------------------------------------"

// Parsing a line - split and join
    csv_values = "hello,world,how,are,you".split(",")
    println csv_values;
    println csv_values.join(":")

// A Single Argument Function
    def hello(name) {
        return "Hello ${name}!"
    }
    println hello("Praveen")

// A simple class
    class Movie {
        String name = ""
        Integer rating = 0

        def Movie(movieName) {
            this.name = movieName
            this.rateMovie()
        }

        def rateMovie() {
            this.rating = (this.name.length() % 10) + 1     // IMDBs rating algorithm. True story!
        }
        def printMovieDetails() {
            println "Movie : " +   this.name
            println "Rating : " + '*'.multiply(this.rating)  +  "(" + this.rating +")"
        }
    }

// Create the Object
    ncfom = new Movie("New Country for Old Men");     // It's a sequel!
    ncfom.printMovieDetails()

// Closures in action
    myList = ["Hello","My","World","What's","Up"]
    myList.each {
        print it + "-" // it is special
    }

// Multiplication table
    (1..10).each {
        println "${it} x 2 = ${it*2}"
    }

    println() // just a newline

// Tuples
    myTuple = new Tuple(1, 'two', 3, 'four')
    println myTuple

// File IO - Create a new file
    myFile = new File("myfile.txt");
    myFile.text = "Hello World! - from the file"
    myFile.createNewFile()

// File IO - Read from file
    println myFile.text

// File IO - With closure
    myFile.eachLine {
        l -> println l.toUpperCase()
    }

// Regular Expressions
    import java.util.regex.Pattern
    Pattern pattern = ~/World/
    str = "Hello World, this is Universe, not your World!"
    println "Found " + pattern.matcher(str).size() + " mathes."

View in GitHub | Made with wp-showgithubfile plugin [Code generated by wp-ShowGithubFile plugin]

June 7, 2020June 7, 2020

WordPress plugin – Show your source code directly from GitHub in your blog/website

Show a file, preferably source code file content in a WordPress blog post or page. This plugin shows always the latest code from GitHub.

Visit my GitHub repository to download the plugin for free – https://github.com/ninethsense/wp-ShowGithubFile

Source Code: (Live Example directly from GitHub 🙂


<?php
/**
 * Plugin Name: wp-ShowGithubFile
 * Description:       Show a file, preferably source code file content in a WordPress blog post or page
 * Version:           1.0.0
 * Author:            NinethSense
 * Author URI:        https://blog.ninethsense.com/
 * License:           GPL v2 or later
 */


    add_shortcode( "GitHub", "ShowGitHub" );
    function ShowGitHub($atts) {
        if (!isset($atts["file"]) && !strpos(strtolower($atts["file"]), "https://raw.githubusercontent.com/" )) {
            // Also, I want only files from GitHub. Modify this to show file from any URL
            return "[Invalid GitHub Raw file]";
        }
        
        $fh = @get_headers($atts["file"]);
        
        if (strpos($fh[0],"200") == 0) {
            return "[Invalid file]";
        }
        
        $fcontents = file_get_contents(trim($atts["file"]));
        $notphp = false;
        
        if (strpos($fcontents, "?php") == false) {
            $fcontents = "<?php ".$fcontents;
            $notphp = true;
        }
        
        // Make use of PHP syntax highlighing. Something is better than nothing.
        $fcontents = highlight_string($fcontents, TRUE);
        
        if ($notphp) {
            $fcontents = str_replace("&lt;?php&nbsp;", "",$fcontents);
            $notphp = false;
        }

        $fcontents = str_replace(["<code>", "</code>"], "",$fcontents);
        
        $fcontents = explode("<br />",$fcontents);
        
        $style = (isset($atts["style"])) ?$atts["style"]:"";
        $ret = "<div style='font-family:monospace;background-color:#dcd7ca;width:100%;overflow:auto;white-space:nowrap;border:solid 1px #aaa;font-size:10pt;$style'>";
        for ($i=0;$i<sizeof($fcontents);$i++) {
            $line = $fcontents[$i];
            $ret .= "<span style='font-size:10pt;display:block;width:40px;background-color:#aaa;float:left'>" . 
                str_pad($i+1, 3,'0',STR_PAD_LEFT) ." </span><span style='margin-left:10px;width:100%;inline-block'>" . $line . "</span><br />";
        }
        $ret .= "</div>";
       
        file_put_contents("D:\\test.txt", $ret);
        return $ret;

        
    }
?>

View in GitHub | Made with wp-showgithubfile plugin

June 6, 2020

PHP PortPing script – check host connectivity

Here is a script in PHP I wrote to check if a remote host and port are open for you to connect. Do not mistake this as an equivalent to ping command because ping uses ICMP and I used TCP using PHP’s famous fsockopen() function, and a small piece of AJAX.

You can get the latest source code from my GitHub code share page – https://github.com/ninethsense/code-share/

PHP:


function ping($host, $port) {
         $startTime = time();
         if ($fs = fsockopen($host, $port, $errCode, $errStr, 1)) {
             $timeTaken = (time()-$startTime)/1000;
         echo "Reply from $host:$port time={$timeTaken}ms";
             fclose($fs);
         } else {    
             echo "Request timed out.";
         }
         echo "<br>";
     }

JavaScript:


var count = 0;
             var intervalID = setInterval(function PortPing() {
                 var xhttp = new XMLHttpRequest();
                 xhttp.onreadystatechange = function() {
                     if (this.readyState == 4 && this.status == 200) {
                         document.getElementById("console").innerHTML += this.responseText;
                     }
                 };
                 xhttp.open("GET", "PortPing.php?source=self&host=<?=$host?>&port=<?=$port?>", true);
                 xhttp.send();
                 if (++count > <?=$t-1?>) {
                     clearInterval(intervalID);
                 }
             },2);

June 3, 2020

How to setup AWS SES / Simple Email Service

This is a tutorial on how to setup AWS SES / Simple Email Service.

Step 1 – Login to your AWS Console, then choose Services –> Customer Engagement –> Simple Email Service

Step 2 – Verify a New Domain

Choose “Domains” from left navigation panel, then click –> Verify a New Domain button

Step 2.2 – Enter Domain name

Also click checkbox Generate DKIM settings, though optional, I will be using this.

You will be displayed with a list of DNS settings in the next screen.

Once you completed the Step 3, click close.

Step 3 – Edit DNS records

You will have to login to your domain control panel and add these.

I will be using cPanel for this exercise. Steps are almost same with any domain/hosting control panel.

Step 4 – Wait for the domain to get verified. Click refresh icon on the right-top whenever you are impatient.

You have nothing to do here. Just wait for some 2-5-10 minutes.

Step 4.1 – Verify Email Address

You cannot even send a test mail, unless you have a email id verified.

Choose ‘Email Addresses’ from the left-navigation panel and click “Verify a New Email Address” button.

Make sure you enter an already existing email id.

A verification mail will be sent to your inbox.

There will be a URL you are expected to click, and you are verified.

Once verified, you should be able to see the verification status updated in AWS console too.

Step 5 – Send test mail.

Go back to Domains –> “Send a Test Mail” button.

May 29, 2020May 29, 2020

A simple Folder Watcher for windows

Here is a simple file system watcher for windows. I wrote a script to monitor a folder for a specific purpose, but then thought to make this a generic tool so someone will benefit if I host in GitHub.

Find full project at https://github.com/ninethsense/FolderWatcher

Source Code:


private void Form1_Load(object sender, EventArgs e)
{
    toolStripLabel.Text = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
    StartMonitoring();
}
private void StartMonitoring()
{
    watcher = new FileSystemWatcher(toolStripLabel.Text)
    {
        IncludeSubdirectories = true,
        EnableRaisingEvents = true
    };
    watcher.Created += Watcher_Handler;
    watcher.Deleted += Watcher_Handler;
    watcher.Renamed += Watcher_Handler;
    watcher.Changed += Watcher_Handler;
}
private void Watcher_Handler(object sender, FileSystemEventArgs e)
{
    Invoke(new Action(() =>
    {
        listBoxLog.Items.Add($"[{DateTime.Now}][{e.ChangeType}] {e.FullPath}");
    }));
}
private void ToolStripClearButton_Click(object sender, EventArgs e)
{
    listBoxLog.Items.Clear();
}
private void ToolStripChooseFolderButton_Click(object sender, EventArgs e)
{
    watcher.EnableRaisingEvents = false;
    folderBrowserDialog.SelectedPath = toolStripLabel.Text;
    var dlg = folderBrowserDialog.ShowDialog();

    if (dlg == DialogResult.OK)
    {
        string OldPath = toolStripLabel.Text;
        try
        {
            watcher.Path = folderBrowserDialog.SelectedPath;
            watcher.EnableRaisingEvents = true;
        } catch (FileNotFoundException ex)
        {
            toolStripLabel.Text = OldPath;
            watcher.Path = OldPath;
            MessageBox.Show($"Seems you don't have permission to access folder        {folderBrowserDialog.SelectedPath}. Try starting this app as Administrator\n\nDetails:\n{ex.Message}", "Error", MessageBoxButtons.OK);
            watcher.EnableRaisingEvents = true;
        }
            toolStripLabel.Text = watcher.Path;

    }
}

May 28, 2020May 28, 2020

Microsoft 365

Fluid Framework – A new framework to build distributed web applications. (in preview) [Link]
Project Cortex – Classify organization content using AI to topics. Knowledge base to improve employees’ organizational intelligence and productivity (in preview). Microsoft Graph based APIs will be available.[Link]
Microsoft Lists – Will have templates for quick lists, color formatting, and the ability to create alerts, track issues, assets, routines, contacts, and inventory for companies [Link]
Office Scripting [Link]
Outlook – Compose email messages with text prediction
Excel – New features – new capabilities, contextual experiences [Link]
Misc. – Office Add-In debugger Extension for VS Code

Teams

Teams to get customizable templates
Easily create Chatbots
Power Platform Integration
Developers can build and publish Teams app using Visual Studio and VS Code
Easy integration of custom apps and Power Apps using single click
Share Power BI reports in Teams
Schedule virtual appoints in Teams
Broadcast events and create studio productions from virtual stage

Reference: [Link]

Power Platform

Trying to bring in low-code RPA into Power Automate with the acquisition of Softomotive [Link]
New “Add to Teams” experience

Azure

Azure Synapse Link

Bringing database services and analytics together in real time [Link]

Azure ML

New “responsible machine learning” tools in AML. This will help developers understand, protect and control their models throughout the machine learning lifecycle. [Link][Link]

AI Supercomputer

New infrastructure available in Azure to train extremely large AI models [Link]

Azure Arc & Azure Stack Hub (updates)

Azure Arc – For customers who want to simplify complex and distributed environments across on-premises, edge and multicloud, Azure Arc enables deployment of Azure services anywhere and extends Azure management to any infrastructure [Link]
Azure Stack Hub – Azure Stack Hub broadens Azure to let you run apps in an on-premises environment and deliver Azure services in your datacenter [Link]

Azure SQL Edge (in preview)

Combines new capabilities such as data streaming and time series with in-database machine learning and graph features [Link]

Azure Quantum

One-stop-shop in Azure that gives you the freedom to create your own path to scalable quantum computing. [Link]

Developers

Visual Studio Codespaces (formerly Visual Studio Online) [Link]

Cloud-hosted, managed dev environments accessible from anywhere

Project Reunion

Unifying app development across the billion windows 10 devices [Link]
Breaking the barrier between Win32 and UWP APIs.

WSL / Windows Subsystem for Linux [Link]

Support for Windows Subsystem for Linux 2 distros
Run all Linux apps in WSL
GPU support

.NET

C# 9 – preview is available [Link]

Blazor

WebAssembly is out of preview

Microsoft Graph Services

productivity-focused services powered by Microsoft 365 and Azure, that are designed specifically for developers who are building high-value applications [Link]

Windows Package Manager

Native Package Manager for Windows 10 (in preview) [Link]

Certifications

Azure IoT Developer Specialty Certification

Misc.

Microsoft Cloud for Healthcare

Microsoft Cloud for Healthcare brings together trusted and integrated
capabilities for customers and partners that enrich patient engagement and
connects health teams to help improve collaboration, decision-making, and
operational efficiencies [Link]

New Microsoft Edge

May 15, 2020

Free Online Learning Due to Coronavirus – Free courses and resources

A good big list of free training courses and other resources – https://www.classcentral.com/report/free-online-learning-coronavirus/

NinethSense oWnZ mE!

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