Download demo - 3.9 MB; Introduction. CAPTCHA is actually an acronym that stands for Completely Automated Public Turing test to tell bots and Humans Apart. Latest Topics | ZDNet. Last week I wrote about a 3. Raspberry Pi (RPi) microcomputers. But can you do useful work on such a low- cost, low- power cluster? Yes, you can. Hadoop runs on massive clusters, but you can also run it on your own, highly- scalable, RPi cluster.
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Script into our environment and web application, which is a risk into your secure enterprise application where using external Java. Script is not permitted. Therefore, here is the full solution to build your own for Re. Captcha without any external third party plugins Like Google re. CAPTCHA, etc. It’s a simple code developed with Genric. Handler, MVC 4. 0, Bootstrap, Jquery AJAX, and CSS. In the example, I have two solutions - one for basic use and the other for complex use. Simple Re. Captcha. Complex Re. Captch. Note: It has required Bootstrap Package to design Get Bootstrap from here. Output demo as shown below. Demo. Background. In the current internet world, tools like Re. Captcha are necessary for every web application. They protects web applications from malicious attacks or bots interaction to web form of the web application. So most of the web applications use free recapcha services provided by Google, etc. Java. Script. However, some applications create their own recaptcha tool to support and protect their web application from unwanted activity by bots. This solution also solves this problem with the help of using generic handler and C# code and is able to create a fully functional recaptcha code to use. Using the Code. The code starts from the basic web pages, which includes four main pages, one extra bit for complex recaptcha code._Layout. Index. cshtml. Home. Contoller. cs. Generate. Recaptcha. ashx (Simple. Recaptcha Code)Generate. Recaptcha. 2. ashx (Complex Recaptcha Code)Step 1. Sql Server Trigger On Insert Update Find here. To create this small recaptcha tool, first folder structure is very important as I am using MVC here.Create the folder structure shown below for your web application.Folder Structure. Step 2. Creating _Layout. MVC template - just edit as per your need)._Layout. Query or CSS like bootstrap. This is an option page for reference to your respective master page; it will help you to integrate the recaptcha tool into your web application. Code of _Layout. cshtml will look like below._Layout. DOCTYPEhtml> < htmllang="en"> < head> < metacharset="utf- 8"/> < title> @View. Bag. Title< /title> < linkhref="~/favicon. Content/css/bootstrap. Content/js/jquery- 1. Content/js/Common. Recaptcha Demo < small>.Net Recaptcha with MVC and Responsive.Design with bootstrap< /small> < /h. more. Render. Section("featured", required: false). Render. Body(). < /section> < /div> < /div> < footer> < divclass="container- fluid"> < divclass="left"> < p> MVC < /p> < /div> < /div> < /footer>. Render. Section("scripts", required: false). Step 3. We need one more page where we can use the recaptcha tool, so I am using the default MVC index page to accommodate my recaptcha request and provide the container to hold it. Code of Index. cshtml will look like below. Index. cshtml@model Re. Captcha. Demo. Models.Employee. View. Bag.Title = "Index". Layout = "~/Views/Shared/_Layout. . Recaptcha. Enter. Code. margin- top: 1. Recaptcha. Enter. Code. 2. margin- top: 1. Form With Recaptcha< /h. Html. Begin. Form("Validate. Recaptcha. 2", "Home". Form. Method. Post, new { id = "mvc. Form. 2" })). < divclass="col- xs- 6"> < h. Simple re. CAPTCHA< /h. Fisrt Name< /label> < divclass="col- xs- 8">. Html. Text. Box. For(m => m. First. Name. new { @class = "form- control". Name", placeholder = "First Name". Last Name< /label> < divclass="col- xs- 8">. Html. Text. Box. For(m => m. Last. Name. new { @class = "form- control", id = "l. Name". placeholder = "Last Name", type = "text" }). Email< /label> < divclass="col- xs- 8">. Html. Text. Box. For(m => m. Email. new { @class = "form- control", id = "email". Email", type = "email" }). Recaptcha. 2"> < tableclass=""> < trstyle="background- color: white. Re. Captcha. Image"id="re. Captcha. Image. 2"class="img- responsive"/> < /div> < /td> < td> < div> < divclass="btn- group- vertical"> < spanclass="btn btn- default btn- xs"title="Help"> < iclass="glyphicon glyphicon- info- sign"> < /i> < /span> < spanid="reload. Captcha. 2"class="btn btn- warning btn- sm"title="Reload captcha image"> < icl< spanclass="btn btn- default. Speak - development in progress"> < /i> < /span> < /div> < /div> < /td> < /tr> < tr> < tdcolspan="2"> < divclass="Recaptcha. Enter. Code. 2">. Re. Captcha text enter below. Html. Text. Box. For(m => m. Re. Captcha. Code. Captcha". placeholder = "Type text ". Action"value="Validate. Captcha. 2"> Validate Re. Captcha< /button> < /div> < divclass="col- xs- 8">. Is. Null. Or. Empty(@View. Bag. Rechaptcha. Message. View. Bag. Rechaptcha. Message. 2< /div>. Html. Begin. Form("Validate. Recaptcha", "Home". Form. Method. Post, new { id = "mvc. Form" })). < divclass="col- xs- 6"> < h. Extreme re. CAPTCHA< /h. Fisrt Name< /label> < divclass="col- xs- 8">. Html. Text. Box. For(m => m. First. Name. new { @class = "form- control", id = "f. Name". placeholder = "First Name", type = "text" }). Last Name< /label> < divclass="col- xs- 8">. Html. Text. Box. For(m => m. Last. Name, new {. Name". placeholder = "Last Name", type = "text" }). Email< /label> < divclass="col- xs- 8">. Html. Text. Box. For(m => m. Email, new {. @class = "form- control", id = "email". Email", type = "email" }). Recaptcha"> < tableclass=""> < trstyle="background- color: white. Re. Captcha. Image"id="re. Captcha. Image"class="img- responsive"/> < /div> < /td> < td> < div> < divclass="btn- group- vertical"> < spanclass="btn btn- default btn- xs"title="Help"> < iclass="glyphicon glyphicon- info- sign"> < /i> < /span> < spanid="reload. Captcha"class="btn btn- warning btn- sm"title="Reload captcha image"> < iclass="glyphicon glyphicon- refresh"> < /i> < /span> < spanclass="btn btn- default btn- xs"title="Speak - development in progress"> < iclass="glyphicon glyphicon- headphones"> < /i> < /span> < /div> < /div> < /td> < /tr> < tr> < tdcolspan="2"> < divclass="Recaptcha. Enter. Code">. Re. Captcha text enter below. Html. Text. Box. For(m => m. Re. Captcha. Code. Captcha". placeholder = "Type text ", type = "text" }). Action"value="Validate. Captcha. 1"> Validate Re. Captcha< /button> < /div> < divclass="col- xs- 8">. Is. Null. Or. Empty(@View. Bag. Rechaptcha. Message. View. Bag. Rechaptcha. Message. 1. < /div>. Date. Time. Now. Year - Recaptcha Demo By Shiv< /div> < /div> Step 4. The main part of any of the MVC projects is The Controller, It will facilitate the communication between View and the handler, as I am using handler to create recaptcha image and to process that and make available to the view Controller takes place and can do the work for us. As you can see the code of controller, it is directly making a call to httphandler to get the images information and passed as a json result to Index. As I am using the default controller of MVC, the name is Home. Controller. cs, which we can modify according to our need. Code of Home. Controller. Home. Controller. System. using System. Collections. Generic. System. Linq. using System. Web. using System. Web. Mvc. using Re. Captcha. Demo. Models. Re. Captcha. Demo. Controllers. publicclass Home. Controller : Controller. Action. Result Index(). View(). public Json. Result Get. Recaptcha.
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