How to integrate captcha functionality in the AnQiCMS comment form to prevent spam submissions?

In website operation, the message form is an important bridge for user interaction with the website.It carries users' inquiries, feedback, and even cooperation intentions.However, with the increasing complexity of the network environment, spam submission, also known as the 'form flooding' we often talk about, has become a chronic problem for countless website operators.This spam information not only consumes server resources, but also severely affects the data quality and user experience of the website.As an experienced website operations expert, I am well aware that AnQiCMS (AnQi Content Management System) not only provides an efficient content management solution but also attaches great importance to website security.Today, let's delve into how to cleverly integrate the captcha feature into the comment form of AnQiCMS, thereby effectively curbing spam.

Why do we need to integrate captcha in the comment form?

Imagine a bulletin board without captcha protection, like an open door, where various automated programs (robots) can flood in unchecked, submitting a vast amount of meaningless advertisements, promotions, and even malicious links.This will not only fill your backend with invalid data, increase the workload for manual cleaning, but may also damage the professional image of the website due to the appearance of spam content, and even affect the trustworthiness of search engines.

CAPTCHA, which stands for 'Completely Automated Public Turing test to tell Computers and Humans Apart', is one of the most common and effective methods to prevent spam information.It confirms that the submitter is a real human and not a machine by requiring the user to complete a simple test (such as recognizing text or numbers in an image), thereby keeping the vast majority of spam out.For AnQiCMS, which is committed to providing secure and efficient management tools for small and medium-sized enterprises and content operation teams, integrating captcha functionality is particularly important.

How does AnQiCMS support captcha integration in the comment form?

AnQiCMS knows the value of website security, therefore it built-in support for captcha in the system design.The integration process is very intuitive, mainly consisting of two key steps: first, enabling the captcha feature in the background management system, and second, integrating it into the front-end message form template.

Step 1: Enable the captcha comment verification feature in the background

In the AnQiCMS admin panel, you can easily find the option to enable captcha.Generally, this is located under 'Function Management' and related settings such as 'Website Messages' or 'Content Comments'.You will see an option similar to a switch or checkbox labeled 'Enable comment captcha verification' or similar.Just a light tap, switch its status from off to on, and the system is ready for the captcha feature of the comment form.This operation is the basis for enabling captcha, it tells AnQiCMS that an additional captcha verification is required when the user submits the form.

Step 2: Integrate captcha into the comment form

After enabling the background, we need to modify the front-end form template of the website's message board, adding the display and input box for the captcha. AnQiCMS's template system is flexible and powerful, allowing you to add in accordance with your own needs,guestbook/index.htmlorguestbook.htmlCustomize the template files related to the leave message form.

AnQiCMS provides a simple captcha API and frontend code examples, you can directly embed them into your comment form<form>Label inside, usually located between the user filling in basic information and the submit button.

Here is the critical integration code:

<div style="display: flex; clear: both; align-items: center; margin-top: 15px;">
  <input type="hidden" name="captcha_id" id="captcha_id">
  <input type="text" name="captcha" required placeholder="请填写验证码" class="layui-input" style="flex: 1; margin-right: 10px; height: 38px; line-height: 38px; border: 1px solid #e6e6e6; padding: 0 15px; border-radius: 2px;">
  <img src="" id="get-captcha" alt="验证码" style="width: 120px; height: 38px; cursor: pointer; border: 1px solid #e6e6e6; border-radius: 2px;" title="点击刷新验证码" />
</div>
<script>
  // 获取验证码图片和ID的函数
  function fetchCaptcha() {
    fetch('/api/captcha')
      .then(response => response.json())
      .then(res => {
        if (res.code === 0 && res.data) {
          document.getElementById('captcha_id').value = res.data.captcha_id;
          document.getElementById('get-captcha').src = res.data.captcha;
        } else {
          console.error('Failed to load captcha:', res.msg);
        }
      })
      .catch(err => console.error('Error fetching captcha:', err));
  }

  // 页面加载时自动获取一次验证码
  document.addEventListener('DOMContentLoaded', fetchCaptcha);

  // 点击图片刷新验证码
  document.getElementById('get-captcha').addEventListener('click', fetchCaptcha);
</script>

Code interpretation and practical guidance:

• <div>Container: We use adivWrap the captcha input box and captcha image, and add some basic styles to make it present well visually on the page.You can adjust the CSS style according to your template.
• input type="hidden" name="captcha_id" id="captcha_id"This is a hidden field used to store the unique identifier ID of each generated captcha.When the user submits the form, the system will verify whether the entered captcha is correct according to this ID.Its existence ensures that the backend can accurately match the captcha that the user sees.
• input type="text" name="captcha" ...: This is the text box for user input of the verification code.requiredattribute to ensure that the user must fill in,placeholderand then provide a friendly prompt.
• img src="" id="get-captcha" ...: This is the area where the verification code image is displayed. InitiallysrcEmpty, loaded dynamically via JavaScript.cursor: pointerandtitle="点击刷新验证码"Enhanced user experience, hints to the user that clicking the image will refresh the captcha.
• JavaScript logic:
  • fetchCaptcha()Function: This function is responsible for sending a request to the backend of AnQiCMS to get a new verification code image URL and the corresponding/api/captchaInterface, obtaining a new verification code image URL and the correspondingcaptcha_id.
  • document.addEventListener('DOMContentLoaded', fetchCaptcha);: Make sure to call it immediately after the page content is loaded.fetchCaptcha[en]Function, so that users can see the captcha when they access the message page.
  • document.getElementById('get-captcha').addEventListener('click', fetchCaptcha);[en]: Add a click event listener to the captcha image, which will call again when the user clicks the image.fetchCaptchaFunction, refresh the captcha image, which is very useful for users who find it difficult to recognize the captcha.

If you are using jQuery, you can also choose the following more concise jQuery syntax to handle the refresh logic of the captcha:

<div style="display: flex; clear: both; align-items: center; margin-top: 15px;">
  <input type="hidden" name="captcha_id" id="captcha_id">
  <input type="text" name="captcha" required placeholder="请填写验证码" class="layui-input" style="flex: 1; margin-right: 10px; height: 38px; line-height: 38px; border: 1px solid #e6e6e6; padding: 0 15px; border-radius: 2px;">
  <img src="" id="get-captcha" alt="验证码" style="width: 120px; height: 38px; cursor: pointer; border: 1px solid #e6e6e6; border-radius: 2px;" title="点击刷新验证码" />
</div>
<script src="path/to/jquery.min.js"></script> <!-- 确保您的网站已引入jQuery -->
<script>
  $(document).ready(function() {
    // 获取验证码图片和ID的函数
    function fetchCaptchaJquery() {
      $.get('/api/captcha', function(res) {
        if (res.code === 0 && res.data) {
          $('#captcha_id').val(res.data.captcha_id);
          $('#get-captcha').attr('src', res.data.captcha);
        } else {
          console.error('Failed to load captcha:', res.msg);
        }
      }, 'json');
    }

    // 页面加载时自动获取一次验证码
    fetchCaptchaJquery();

    // 点击图片刷新验证码
    $('#get-captcha').on('click', fetchCaptchaJquery);
  });
</script>

No matter which implementation method you choose, please make sure to place this code in the comment form of your websiteguestbook.htmlor similar template file<form>inside the tag, ensuring that all form elements are correctly processed.

Summary

By following these two steps, you will be able to successfully integrate the captcha feature into the AnQiCMS comment form.This can not only significantly reduce the disturbance of spam information and lighten the burden on website operation, but also ensure the purity and health of your website's content ecosystem.AnQiCMS is committed to providing a secure and efficient content management experience, and the integration of captcha is a strong embodiment of this philosophy.Make good use of these built-in features, and it will make your website operation more relaxed.

Common Questions (FAQ)

Q1: Why did the captcha not display on the front-end form even though I enabled it on the backend? A1:The captcha is enabled on the backend, which simply activates the validation logic at the system level and does not automatically display the captcha on the frontend. You still need to manually modify the comment form template (such as) as described in the second part of the article.guestbook.htmlEmbed the HTML structure and JavaScript code for the captcha into the form.If the template has not been updated or the browser has a cache, also try clearing the browser cache and refreshing the page.

Q2: I have integrated the captcha according to the steps, but the captcha image cannot be displayed or the refresh button is ineffective. What is the matter? A2：This usually has several reasons. First, please check if your network connection is normal, ensure that you can access/api/captchaInterface. Secondly, check if there are any spelling mistakes in the JavaScript code you added in the template or if the DOM element selectors are incorrect. Confirm.id="captcha_id"andid="get-captcha"Match with the JavaScript code. Finally, check if the captcha feature is enabled correctly in the AnQiCMS backend, if the backend feature is not enabledapi/captchaIt may not return the expected data.

Q3: The user feedback says the captcha is difficult to recognize. Is there a way to improve it or use a different type of captcha? A3:The captcha built-in to AnQiCMS is typically an image text captcha.If the user finds it difficult to recognize, you can try to optimize the front-end display style, such as increasing the size of images, adjusting the contrast of font colors, etc.Currently, AnQiCMS mainly supports this type of image captcha.If you have more advanced verification requirements (such as sliding verification, behavioral verification), you may need to carry out secondary development or integrate third-party verification services.The functionality to refresh the captcha in the template has been provided, which can remind users to click the image to refresh.