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Setting Up ReCaptcha

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Setting Up ReCaptcha

Mar 01, 2019

reCAPTCHA is a free service provided by Google that can be used to protect against spam or other forms of internet abuse by verifying whether a user is a human or a robot. It comes in the form of a widget.

Let's learn how to set up and use reCaptcha with WSO2 Identity Server. 

How it works 

First, you will need to register and create an API key pair for the required domain. The key pair consists of a site key and site secret. The site key is used to display the reCaptcha widget on a web page. After the verification, a new parameter called g-recaptcha-response appears on the form, which can be submitted by the user. From the server side, you can verify the submitted captcha response by calling the Google API with the secret key.

Follow the steps below to configure this. 

Configuring reCAPTCHA API keys

  1. Register your identity server domain.

    1. Visit https://www.google.com/recaptcha/admin.

    2. Provide the following details and click Submit.

    3. Click Submit. 

      Note that a site key and secret key get generated. Copy them for later use.

  2. Open the captcha-config.properties file located in the <IS_HOME>/repository/conf/identity/ directory and configure the following properties.

    # Google reCAPTCHA settings # Enable Google reCAPTCHA recaptcha.enabled=true # reCaptcha API URL recaptcha.api.url=https://www.google.com/recaptcha/api.js # reCaptcha verification URL recaptcha.verify.url=https://www.google.com/recaptcha/api/siteverify # reCaptcha site key recaptcha.site.key=<your site key> # reCaptcha secret key recaptcha.secret.key=<your site secret key>

  3. Restart WSO2 Identity Server. 

You have successfully set up reCaptcha for your site. You can now configure reCaptcha with any of the following: