Prakash

Is your WordPress site redirect to another URL?

Your WordPress site and admin panel/dashboard redirect to another unknown URL then it is hacked and affected with trojan malware.

How WordPress website get hacked? 

  • Poor passwords and compromised user accounts
  • XSS scripting attacks
  • backdoors in nulled themes and plugins
  • vulnerabilities in plugins and themes

How to prevent WordPress redirect hacks? 

  • Install security plugin
  • Use strong passwords on website and database
  • SSL certificates apply to the website
  • Use trusted plugins only

How to resolve redirection to another URL? 

  • run the malware scan on your server. For Linux, the EST endpoint is a good one. Remove virus/malware from the server.
  • Remove all comments from unknown users/spam
  • Check the WP_Options table. Remove all the records which not added by WordPress by default and you. Also, correct the URLs in the “home” and “site” records.
  • Also,, check that any plugins installed that you don’t recognize, remove it. Check the header and footer file and if find any unknown script / malicious script remove it.

Every day the redirects malware coming with a new Avtar. So, the best way is to install a good security plugin and installed only trusted plugins for the website.

May 20, 2023 by WordPress

Create a custom autocomplete control in ASP.NET MVC

How to create a custom HTML control in ASP.NET MVC?

using System;
using System.Web.Mvc;


namespace MvcApplication1.Helpers
{
     public static class LabelExtensions
     {
          public static string Label(this HtmlHelper helper, string target, string text)
          {
               return String.Format("", target, text);
          }
     }
}

Refer link: https://docs.microsoft.com/en-us/aspnet/mvc/overview/older-versions-1/views/creating-custom-html-helpers-cs

Auto complete custom control: Download

 

August 18, 2019 by MVC

Nth Highest Salary


Create table #tblEmployee (Id int, [Name] varchar(100), City varchar(100), Salary decimal (10,3))
Insert into #tblEmployee values(1, 'Prakash Rathod', 'Gandhinagar', 100000)
Insert into #tblEmployee values(2, 'Salman Khan', 'Mumbai', 100000)
Insert into #tblEmployee values(3, 'Aamir Khan', 'Mumbai', 90000)
Insert into #tblEmployee values(4, 'Katrina Kaif', 'Mumbai', 80000)
Insert into #tblEmployee values(5, 'Rashmi Bansal', 'Indor', 95500)
Insert into #tblEmployee values(6, 'Jinen Kothari', 'Ahmedabad', 60000)
Insert into #tblEmployee values(7, 'Deepika Patel', 'Gandhinagar', 60000)
Insert into #tblEmployee values(8, 'Ranbir Singh', 'Gandhinagar', 36000)
Insert into #tblEmployee values(9, 'Mohini Trivedi', 'Ahmedabad', 25000)
Insert into #tblEmployee values(10, 'Jalpa Patel', 'Surat', 100000)
Insert into #tblEmployee values(11, 'Kruti Patel', 'Surat', 100000)
Insert into #tblEmployee values(12, 'Viral Zala', 'Surat', 100000)
Insert into #tblEmployee values(13, 'Dipbha Parmar', 'Surat', 100000)
Insert into #tblEmployee values(14, 'Jagubha Chotu', 'Gandhinagar', 100000)
Insert into #tblEmployee values(15, 'Kailashba Rathod', 'Surat', 100000)
select * from #tblEmployee

--2nd hightest salary
--SELECT top 1 Salary FROM #tblEmployee
--WHERE Salary < (select max(salary) from #tblEmployee ) ;With Result As ( select salary, DENSE_RANK() over (order by salary desc) as RowNumber from #tblEmployee ) select salary from result where RowNumber=1 drop table #tblEmployee

May 10, 2019 by SQL Interview Questions

Generate x509 certificate in pem, cer and pfx and export public key

Generate x509 cerntifcate

c:\Demo>openssl req -x509 -days 365 -newkey rsa:2048 -keyout my-key.pem -out -my-cert.pem

Generating a RSA private key
………………………+++++
…………..+++++
writing new private key to ‘my-key.pem’
Enter PEM pass phrase:
Verifying – Enter PEM pass phrase:
—–
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter ‘.’, the field will be left blank.
—–
Country Name (2 letter code) [AU]:IN
State or Province Name (full name) [Some-State]:Gujarat
Locality Name (eg, city) []:Gandhinagar
Organization Name (eg, company) [Internet Widgits Pty Ltd]:Your Company Name
Organizational Unit Name (eg, section) []:Development
Common Name (e.g. server FQDN or YOUR name) []:www.yourcompany.com
Email Address []:your@emailaddress.com

Generate .PFX file

c:\Demo>openssl pkcs12 -export -in -my-cert.pem -inkey my-key.pem -out my-xero.pfx
Enter pass phrase for my-key.pem:
Enter Export Password:
Verifying - Enter Export Password:

Generate .cer certificate

c:\Demo>openssl pkcs12 -export -in -my-cert.pem -inkey my-key.pem -out my-xero.cer
Enter pass phrase for my-key.pem:
Enter Export Password:
Verifying - Enter Export Password:

Export public key


c:\Demo>openssl pkcs12 -in my-xero.pfx -clcerts -nokeys -out myxeropublic.cer
Enter Import Password:

Reference: https://www.youtube.com/watch?v=3EBXAtyB6ys

May 3, 2019 by c#.net

Send an image (stored as base64 string) inline in email


Byte[] bitmapData = Convert.FromBase64String(FixBase64ForImage("Base64 string"));
System.IO.MemoryStream streamBitmap = new System.IO.MemoryStream(bitmapData);
var imageToInline = new LinkedResource(streamBitmap, MediaTypeNames.Image.Jpeg);
imageToInline.ContentId = "Pic1";
AlternateView avHtml = AlternateView.CreateAlternateViewFromString(mailMessage.Body, null, MediaTypeNames.Text.Html);
avHtml.LinkedResources.Add(imageToInline);
mailMessage.AlternateViews.Add(avHtml);

public static string FixBase64ForImage(string Image)
{
System.Text.StringBuilder sbText = new System.Text.StringBuilder(Image, Image.Length);
sbText.Replace("\r\n", string.Empty); sbText.Replace(" ", string.Empty);
return sbText.ToString();
}

April 26, 2018 by c#.net

Put/Delete http verb not working server

Please add following code in web.cofig file.


<system.webServer>
		<modules>
			<remove name="WebDAVModule"/>
			<remove name="FormsAuthentication" />
			<remove name="ApplicationInsightsWebTracking" />
			<add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" preCondition="managedHandler" />
		</modules>
		<handlers>
			<remove name="WebDAV" />
			<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
			<remove name="OPTIONSVerbHandler" />
			<remove name="TRACEVerbHandler" />
			<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
		</handlers>

If not solve then please follow link.

October 25, 2017 by MVC

Dynamically add rows and html controls in table using jQuery

How to add rows dynamically in HTML table with textbox and textarea controls. Example: Download

<html>
<head>
<title>Table Dynamic Row Add Delete Demo</title>
<script src="https://code.jquery.com/jquery-3.2.1.js"
integrity="sha256-DZAnKJ/6XZ9si04Hgrsxu/8s717jcIzLy3oi35EouyE="
crossorigin="anonymous"></script>
</head>
<body>
<div>
<table id="tbl1">
<thead>
<tr>
<th>
Family
</th>
<th>
Address
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<input type="text" id="txtFamil_01" name="txtFamily_01" />
</td>
<td>
<input type="text" id="txtAddress_01" name="txtAddress_01" />
</td>
</tr>
<tr>
<td>
<textarea id="txtFamil_02" name="txtFamily_02"></textarea>
</td>
<td>
<textarea id="txtAddress_02" name="txtAddress_02"></textarea>
</td>
</tr>
</tbody>
</table>
<br />
<button type="button" id="btnAddNewRow">Add New Row</button>
<button type="button" id="btnSave" name="btnSave">Save</button>
</div>
<script type="text/javascript">
$(document).ready(function () {
$("#btnAddNewRow").on("click", function () {

var $newRows = $get_lastID();

$(“#tbl1>tbody”).append($newRows);

});

$get_lastID = function () {
var $id = $(‘#tbl1 tbody tr:last-child td:first-child textarea’).attr(“name”);
$lastChar = parseInt($id.substr($id.length – 2), 10);
$lastChar = $lastChar + 1;
var $newRows=””;
$newRow1 = “<tr> \
<td><input type=’text’ name=’txtFamily_0″+ $lastChar + “‘ /></td> \
<td><input type=’text’ name=’txtAddress_0” + $lastChar + “‘ /></td> \ </tr>”

$newRow2 = “<tr> \
<td><textarea type=’text’ name=’txtFamily_0″+ ($lastChar + 1) + “‘></textarea></td> \
<td><textarea type=’text’ name=’txtAddress_0” + ($lastChar + 1) + “‘></textarea></td> \ </tr>”

$newRows = $newRow1+$newRow2;

return $newRows;
}

$(“#btnSave”).on(“click”, function () {
$(“#tbl1 tbody tr”).each(function (i, tr) {

var famil1, famil2, address1, address2;

if (i % 2 === 0) { /* textbox find here*/
famil1 = $(this).find(‘td’).eq(0).find(‘input’).val();
famil2 = $(this).find(‘td’).eq(1).find(‘input’).val();
alert(famil1 + ” ” + famil2);
}
else { /* textarea find here */

address1 = $(this).find(‘td’).eq(0).find(‘textarea’).val();
address2 = $(this).find(‘td’).eq(1).find(‘textarea’).val();
alert(address1 + ” ” + address2);

}

});

});
});
</script>
</body>
</html>

April 11, 2017 by HTML5 CSS3

CSS style problem with MVC rendered checkboxes using MVC helper

I have faced the issue with CSS for checkboxes in asp.net mvc. Below is mvc code.


 @Html.CheckBoxFor(model => model.GroupClosed)
  <label for="GroupClosed" class="block">
                            Group Closed
                        </label>

It will render as below:


 <div class="checkbox clip-check check-primary">
                        <span class="control-label" style="color:white">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
                        <input id="GroupClosed" name="GroupClosed" type="checkbox" value="true"><input name="GroupClosed" type="hidden" value="false">
                        <label for="GroupClosed" class="block">
                            Group Closed
                        </label>
                    </div>

Before modify the css file as below.


.clip-check input[type="checkbox"]:checked + label:before,
 {
  border-width: 10px;
}

After modify:


.clip-check input[type="checkbox"]:checked + label:before,
.clip-check  input[type="checkbox"]:checked + input[type="hidden"] + label::before {
  border-width: 10px;
}

Note that the bold line contains the input[type=”hidden”] which identifies the hidden checkbox and solve the issue. I have added this line and make changes according to css has been written in css file. Happy 🙂

March 9, 2017 by HTML5 CSS3

Generate and Download PDF file on Ajax Post method, C#

Requirements: On ajax post, save data to database, generate invoice and download as PDF file. There are many open source packages available to generate PDF file. So I’m not going describe that using which paid/free package is used to generate PDF file. I am going to describe the trick how can download the generated PDF file without saving on hard drive.

HomeController.CS


public class HomeController : Controller
    {
        public ActionResult Index()
        {         
            return View();
        }

        public ActionResult Download()
        {
            //using (var ms = new MemoryStream())
            //{
                //using (var document = new Document(PageSize.A4, 50, 50, 15, 15))
                //{
                //    PdfWriter.GetInstance(document, ms);
                //    document.Open();
                //    document.Add(new Paragraph("HelloWorld"));
                //    document.Close();
                //}
                //Response.Clear();
                ////Response.ContentType = "application/pdf";
                //Response.ContentType = "application/octet-stream";
                //Response.AddHeader("content-disposition", "attachment;filename= Test.pdf");
                //Response.Buffer = true;
                //Response.Clear();
                //var bytes = ms.ToArray();
                //Response.OutputStream.Write(bytes, 0, bytes.Length);
                //Response.OutputStream.Flush();
           // }

            return View();
        }

        [HttpPost]
        public ActionResult Save()
        {

// write code here to save the data in database. 
            var fName = string.Format("MYPDF-{0}.pdf", DateTime.Now.ToString("s"));
            using (var ms = new MemoryStream())
            {
                using (var document = new Document(PageSize.A4, 50, 50, 15, 15))
                {
                    PdfWriter.GetInstance(document, ms);
                    document.Open();
                    document.Add(new Paragraph("HelloWorld"));
                    document.Close();
                }

                var bytes = ms.ToArray();              
                Session[fName] = bytes;
            }

            return Json(new { success = true, fName }, JsonRequestBehavior.AllowGet);
            //return View();
        }
         public ActionResult DownloadInvoice(string fName)
         {
             var ms =  Session[fName] as byte[] ;
             if(ms == null)
                 return new EmptyResult();
             Session[fName] = null;
             return File(ms, "application/octet-stream", fName);
         }
    }

Index.cshtml

 <input type="button" id="btnSave" value="Save & Download PDF" />
 
 $(document).ready(function () {
 $("#btnSave").click(function () {
 $.ajax({
 type: 'POST',
 url: "/home/save",
 dataType: "json",
 success: function (resultData)
 {
 if (resultData.success) {
 window.location = "/home/DownloadInvoice" + "?fName=" + resultData.fName;
 }
 }
 });
 })
 })

On ajax post method, data will save into the database. Here Save is a post method. Check the HomeController.CS file. Generate file and save an array of byte in Session. In JSON result, send the name of file. Ajax post method retrieve the data and using window.location send request to server to download the file. Now, check DownloadInvoice method in HomeController.cs.

Thank you for reading this post.

December 22, 2016 by Asp.Net c#.net MVC Uncategorized