VividCortex reCaptcha AngularJS Directive

Use this directive to be able to submit with XHR a form that contains a reCaptcha.

Demo

See the demo file for an usage example.

Keep in mind that the captcha only works when used from a real domain and with a valid re-captcha key, so this file wont work if you just load it in your browser.

Usage

First, you need to get a valid public key for your domain. See http://www.google.com/recaptcha.

Then, include the reCaptcha AJAX API using this script in your HTML:

<script type="text/javascript" src="//www.google.com/recaptcha/api/js/recaptcha_ajax.js"></script>

After that, in your view, you can place a container for the captcha widget and call the vc-recaptcha directive like this (Be careful to use your public key, not your private one.):

<div
    vc-recaptcha
    key="'---- YOUR PUBLIC KEY GOES HERE ----'"
></div>

Here the key attribute is passed to the directive's scope, so you can use a property in your scope or just a string

To validate this object from your server, you need to use one of the server side plugins or roll your own. Validations is outside of the scope of this tool, since is mandatory to do that at the server side. To get the values that you need to send to your server, use the vcRecaptchaService angular service. This object contains a data() method that returns two values needed to validate the captcha in your server. response is the response of the user, and challenge is the identification of the captcha that your user resolved.

{
    "response": "foo bar",
    "challenge": "03AHJ_VuvQ5p0AdejIw4W6yUKA65eRIEFiXFTxtKYD22UH9zjavXK4IYRZ8fhaGHjKXLKZa2MA-Lqeui5V9aeRWWTZSN6e1tED4gt7O77ROTcyY0Uedkc7LHzSUbLNULMcbXb2JThqLgOMvHINaoOtoniW4CepuOLG2h8s0tRUfqaQt6iUqNeWWHQ"
}

Other Parameters

You can optionally pass other parameters to the captcha, as html attributes:

    <div
        vc-recaptcha
        ng-model="model.captcha"
        tabindex="3"
        theme="clean"
        lang="en"
        key="'---- YOUR PUBLIC KEY GOES HERE ----'"
        callback="'---- YOUR CUSTOM CALLBACK FUNCTION ----'"
    ></div>

In this case we are specifying that the captcha should use the theme named 'clean', display the texts in english language and the captcha input should have tabindex 3.

Recent Changelog

• 1.0.3 - added custom callback method to the directive, for anyone that would need to use it if needed, and reduced the timeout to 200ms from 1s.
• 1.0.2 - added extra Recaptcha object methods to the service, i.e. switch_type, showhelp, etc.
• 1.0.0 - the key attribute is now a scope property of the directive
• Added the destroy() method to the service. Thanks to @endorama.
• We added a different integration method (see demo/2.html) which is safer because it doesn't relies on a timeout on the reload event of the recaptcha. Thanks to @sboisse for reporting the issue and suggesting the solution.
• The release is now built using GruntJS so if you were using the source files (the src directory) in your projects you should now use the files in the release directory.