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Forums Using DNN Platform Modules and Other Extensions

Recaptcha V3

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Steve Johnson
New Around Here
Posts: 8
New Around Here
7/18/2019 12:30 PM

    I've got a html form that switches the default form to post to an Act-On form URL.

    This works fine.

     

    Unfortunately, it is getting a lot of spam and I want to add a Google Recaptcha V3 and don't know to to go about it. Adding the google recaptcha client site script will be easy but how will I add the server side script.

    Has anyone any experience of doing this?

     

     

    0
    Will Strohl
    Senior Member
    Posts: 1425
    Senior Member
    7/19/2019 12:19 PM
      Can you please provide some more details about where and how you're trying to add this?
      Mitchel Sellers
      Growing Member
      Posts: 98
      Growing Member
      7/19/2019 1:43 PM
        You really only have two options in this case when you are using a third-party such as Acton.

        1.) If acton supports it, you can configure the Recaptcha on their side.
        2.) You can create a custom DNN Extension that will actually accept the form, and validate the Recaptcha, and then send the data on to Acton from the server side.

        However, there isn't any easier way since you need to add code on the server side to handle Recaptcha
        Tycho de Waard (SU)
        Veteran Member
        Posts: 762
        Veteran Member
        7/19/2019 1:49 PM
          What if you think about what you want to accomplish instead of how?
          You don't want spam. Did you try to create a honeypot? Personally, I use ActionForm for this where I have :
          1. a field that is not visible for humans
          2. if that field is filled with whatever, the submit button is removed with regex in the binding like !=''

          Robots see the field and will try to fill that with their crap and this is the trigger to not show the submit button
          Steve Johnson
          New Around Here
          Posts: 8
          New Around Here
          7/19/2019 1:57 PM
            Thanks for the reply guys.
            There is already a honeypot included in the form which worked for about 12 months but the spammers seem to have realised and are now bypassing.
            Act-On do support a captcha on their form but in this instance we are not using an iframe but we post the values from our html form in DNN to their form and thus we cannot place a Captcha on their form but not on ours. We need to place the Captcha on the DNN side and not on theirs. So my conclusion matches Mitchell's option 2 which is to make a small extension with the form embedded with a Google Recaptcha V3 and then we can handle the server side response from Google.

            Has anyone any sample code on how to handle this in my extension ?
            0
            Steve Johnson
            New Around Here
            Posts: 8
            New Around Here
            7/19/2019 2:28 PM

              I've got a test page here which shows the HTML form before it is posted onto Act-On URL which takes the post values and inserts into the Act-On form and submits into their CRM

              https://www.mcs.co.uk/delme9

              I need to add the Google Recaptcha V3 into this DNN form

              0
              Will Strohl
              Senior Member
              Posts: 1425
              Senior Member
              7/19/2019 3:46 PM

                It looks like the form you'd like to associate with is built using an HTML module.  All of the examples of integration reCAPTCHA 3 require a server-side processor, which means that you'd probably need to do this by way of a custom module.  I have contact form style module that you could use as a basis for your own contact form module, then integrate reCAPTCHA 3 as you desire.

                Daniel Valadas
                Advanced Member
                Posts: 232
                Advanced Member
                8/8/2019 5:21 PM
                  I don't know if it is a good solution for you but the Form&List core module has Recaptcha support (don't remember the exact version but I submitted that I think about 1-2 years ago... https://github.com/DNNCom...FormAndList/releases or if you just want a reference to build your own, you can check that example code https://github.com/DNNCom...ndList/pull/22/files

                  If the contact form is super simple, then the core Feedback module also has Recaptcha support, download it here https://github.com/DNNCom...NN.Feedback/releases or reference the code here https://github.com/DNNCom...DNN.Feedback/pull/23 for yet another example
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