如何在單個頁面中添加多個不可見的recaptcha？

Question

我添加了兩個不可見的recaptcha div，但是當我在inspect 元素中看到代碼時，我的單個頁面中只添加了一個不可見的recaptcha。 我的代碼是：

 <div id="captcha1" class="g-recaptcha"
      data-sitekey="your_site_key"
      data-callback="onSubmit"
      data-size="invisible"></div>
<div id="captcha2" class="g-recaptcha"
      data-sitekey="your_site_key"
      data-callback="onSubmit"
     ></div>

從以編程方式調用 recaptcha獲取參考

你能幫我我做錯了什么嗎？

Answer 1

下面是嵌套元素時更可靠的彼得和亞歷山德羅答案的解決方案。

<script>
$(".g-recaptcha").each(function() {
    var object = $(this);
    grecaptcha.render(object.attr("id"), {
        "sitekey" : "6LdwRC0UAAAAAK0hjA8O4y1tViGPk9ypXEH_LU22",
        "callback" : function(token) {
            object.parents('form').find(".g-recaptcha-response").val(token);
            object.parents('form').submit();
        }
    });
});
</script>

<form>
    <input type="text" name="example"/>
    <button id="captcha1" class="g-recaptcha">submit form 1</button>
</form>

<form>
    <input type="text" name="example"/>
    <button id="captcha2" class="g-recaptcha">submit form 2</button>
</form>

<script src='https://www.google.com/recaptcha/api.js?onload=onloadCallback&render=explicit' async defer></script>

Answer 2

有同樣的問題。 經過一番令人費解的工作，我讓它工作了。

使用了 Alessandro 提供的想法，並使其在成功時自動提交表單。

<script type="text/javascript">
    var onloadCallback = function() {
        $(".g-recaptcha").each(function() {
            var el = $(this);
            grecaptcha.render($(el).attr("id"), {
                "sitekey" : SITE_KEY,
                "callback" : function(token) {
                    $(el).parent().find(".g-recaptcha-response").val(token);
                    $(el).parent().submit();
                }
            });
        });
    };
</script>

<script src="https://www.google.com/recaptcha/api.js?onload=onloadCallback&render=explicit" async defer></script>

Answer 3

您必須對每個提交按鈕進行顯式渲染

<form>
    <button id="captcha1" class="g-recaptcha invisible-recaptcha">submit form 1</button>
</form>

<form>
    <button id="captcha2" class="g-recaptcha invisible-recaptcha">submit form 2</button>
</form>

<script>
    function verifyCaptcha(token){
        console.log('success!');
    };

    var onloadCallback = function() {
        $( ".invisible-recaptcha" ).each(function() {
            grecaptcha.render($( this ).attr('id'), {
                'sitekey' : $key,
                'callback' : verifyCaptcha
            });
        });
    };
</script>

<script src='https://www.google.com/recaptcha/api.js?onload=onloadCallback&render=explicit' async defer></script>

Answer 4

單個頁面上的多個 Invisible reCaptcha V2 動態

Github 代碼： https : //github.com/prathameshsawant7/multiple-invisible-recaptcha

步驟 1>

在頁面上添加以下 2 個 Js 庫

<!--  reCaptcha Library -->
<script type="text/javascript" src="https://www.google.com/recaptcha/api.js?render=explicit"></script>

<!--  Customized Init for invisible reCaptcha  -->
<script src="js/init_recaptcha.js" async defer></script>

步驟 2>

在相應的表格中添加以下 div。

<div id="recaptcha-form-1" style="display:none;"></div> <!--for Form 1-->
<div id="recaptcha-form-2" style="display:none;"></div> <!--for Form 2-->
<div id="recaptcha-form-3" style="display:none;"></div> <!--for Form 3-->

步驟 3>

創建init_recaptcha.js

• 第 1 步 - 初始化 reCaptcha 站點密鑰和小部件，例如：Form 1 的 widget_1
• 第 2 步 - 在 init 函數中添加代碼以創建表單提交回調操作。

• 第 3 步 - 通過傳遞 reCaptcha ID 和 createCallbackFn 響應來調用 renderInvisibleReCaptcha 函數。

   "use strict"; var PS = PS || {}; var widget_1;var widget_2;var widget_3; var recaptcha_site_key = 'RECAPTCHA_SITE_KEY'; if( typeof PS.RECAPTCHA === 'undefined' ) { (function (a, $) { var retryTime = 300; var x = { init: function(){ if(typeof grecaptcha != 'undefined'){ //For Form 1 Initialization if($('#form1 #recaptcha-form-1').length > 0){ var callbackFn = { action : function(){ saveData('1'); //Here Callback Function } } /*--- 'recaptcha-form-1' - reCaptcha div ID | 'form1' - Form ID ---*/ widget_1 = x.renderInvisibleReCaptcha('recaptcha-form-1',x.createCallbackFn(widget_1,'form1',callbackFn)); } //For Form 2 Initialization if($('#form2 #recaptcha-form-2').length > 0){ var callbackFn = { action : function(){ saveData('2'); //Here Callback Function } } /*--- 'recaptcha-form-2' - reCaptcha div ID | 'form2' - Form ID ---*/ widget_2 = x.renderInvisibleReCaptcha('recaptcha-form-2',x.createCallbackFn(widget_2,'form2',callbackFn)); } //For Form 3 Initialization if($('#form3 #recaptcha-form-3').length > 0){ var callbackFn = { action : function(){ saveData('3'); //Here Callback Function } } /*--- 'recaptcha-form-3' - reCaptcha div ID | 'form3' - Form ID ---*/ widget_3 = x.renderInvisibleReCaptcha('recaptcha-form-3',x.createCallbackFn(widget_3,'form3',callbackFn)); } }else{ setTimeout(function(){ x.init();} , retryTime); } }, renderInvisibleReCaptcha: function(recaptchaID,callbackFunction){ return grecaptcha.render(recaptchaID, { 'sitekey' : recaptcha_site_key, "theme" : "light", 'size' : 'invisible', 'badge' : 'inline', 'callback' : callbackFunction }); }, createCallbackFn: function (widget,formID,callbackFn) { return function(token) { $('#'+formID+' .g-recaptcha-response').val(token); if($.trim(token) == ''){ grecaptcha.reset(widget); }else{ callbackFn.action(); } } } } a.RECAPTCHA = x; })( PS, $ ); } $(window).load(function(){ PS.RECAPTCHA.init(); });

步驟 4>表單驗證 JS 中的更改 -

/* Execute respective Widget on form submit after form Validations  */
function formSubmit(form){
    var text = $.trim($('#text'+form).val());
    if(text != ''){
        switch(form){
            case '1' : grecaptcha.execute(widget_1); break;
            case '2' : grecaptcha.execute(widget_2); break;
            case '3' : grecaptcha.execute(widget_3); break;
        }
    }
}

步驟 5>從服務器端驗證 reCaptcha -

<?php
    define('RECAPTCHA_SECRET_KEY','KEY');
    /**
    *  @Desc:   To Validate invisible recaptcha from server-side
    *  @Param:  g-recaptcha-response value
    *  @Return: True/False
    **/
    if(!function_exists('check_recaptcha')){
        function check_recaptcha($recaptcha_response){
            $test = array ('secret' => RECAPTCHA_SECRET_KEY,'remoteip' => $_SERVER["REMOTE_ADDR"],'response' => $recaptcha_response);
            foreach ($test as $key => $value) {
                $req .= $key . '=' . urlencode(stripslashes($value)) . '&';
            }
            $req=substr($req, 0, strlen($req)-1);
            $path = 'https://www.google.com/recaptcha/api/siteverify?';
            $response = file_get_contents($path . $req);
            $responseData = json_decode($response);
            if($responseData->success){
                return true;            
            }else{
                return false;
            }
        }
    }

    // Validate reCaptcha
    if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == "POST" && !empty($_POST)) {
        $checkCapcha = false;
            $recaptcha = $_POST['g-recaptcha-response'];
                $checkCapcha = check_recaptcha($recaptcha);
                if($checkCapcha){
                    echo $_POST['textmsg']; exit;
                    /** Perform Actions Here (Add,Update,Delete etc) 
**/
                }
    else{
            echo “reCaptcha Error”;
        }
    }
    echo "failed";exit;
?>

步驟 6>服務器調用后重置小部件 -

// saveData will be automatically get called on grecaptacha.execute 
function saveData(form){
$.ajax( {
    type: 'POST',
    url:  $("#form"+form).attr( 'action' ),
    data: $("#form"+form).serialize(),
    success: function( response ) {
                switch(form){
            case '1' : grecaptcha.reset(widget_1); break;
            case '2' : grecaptcha.reset(widget_2); break;
            case '3' : grecaptcha.reset(widget_3); break;
            }
        }
    } );
}

Answer 5

你可以使用隱形的recaptcha。 在您的按鈕上，使用“formname='rcaptchaformname'”之類的標簽來指定要提交的表單並隱藏提交表單輸入。

這允許您保持 html5 表單驗證完整，一個 recaptcha，但多個按鈕界面。 只需捕獲由recaptcha 生成的令牌密鑰的“驗證碼”輸入值。

<script src="https://www.google.com/recaptcha/api.js" async defer ></script>

<div class="g-recaptcha" data-sitekey="yours" data-callback="onSubmit" data-size="invisible"></div>
<script>

$('button').on('click', function () { formname = '#'+$(this).attr('formname');
    if ( $(formname)[0].checkValidity() == true) { grecaptcha.execute(); }
    else { $(formname).find('input[type="submit"]').click() }
    });

var onSubmit = function(token) {
    $(formname).append("<input type='hidden' name='captcha' value='"+token+"' />");
    $(formname).find('input[type="submit"]').click()
    };
</script>

Answer 6

@Prathamesh Sawant 解決方案是完整的，但如果您不需要它是動態的，您可以簡化流程：

1.加載recaptcha庫

<script src='https://www.google.com/recaptcha/api.js?onload=onloadCallback&render=explicit' async defer></script>

2. 在每個表單的 HTML 中添加占位符

<form ...>
...
<div class="g-recaptcha"></div>
...
</form>

3. 在你的 JS 中，寫入你在加載 reCaptcha 腳本時調用的回調作為參數：

window.onloadCallback = function() {
      $('.g-recaptcha').each(function(i, v) {
        const $placeholder = $(this)

        // Define a widget id that will be used by every grecaptcha method 
        // to keep track of which form is being used
        $placeholder.data('widget-id', i)

        grecaptcha.render( this, {
          callback: function( token ) {

            return new Promise(function(resolve, reject) {
              if( grecaptcha === undefined ) {
                console.log( 'reCaptcha not defined' )
                reject()
              }

              var response = grecaptcha.getResponse( $placeholder.data('widget-id') )
              if( !response ) {
                console.log( 'Could not get reCaptcha response' )
                reject()
              }

              const $form = $placeholder.closest('form')

              $form.find('.g-recaptcha-response').val( token )
              $form
              // Add a class that will be used to bypass the prevented submit event
              .addClass('recap-done')
              // submit by clicking the submit button of your form
              .find('[type="submit"]').trigger('click')
              resolve()
              grecaptcha.reset( $placeholder.data('widget-id') )
            })
          },
          sitekey: RECAPTCHA_KEY,
          size: 'invisible', // This makes the real reCaptcha V2 Invisible
        })
      })
    }

注意：我使用 promise 來防止 Promise null 問題， 記錄在此處。

4.為所有表單添加一個提交事件處理程序

$('form').on('submit', function(e) {
      const $form = $(this)

      // 2nd pass (when the submit is triggered within the callback)
      // This bypasses the event to be prevented a new time -> form is really submitted
      if( $form.hasClass('recap-done') ) {
        return
      }

      // 1st pass: prevents the form to be submitted and do the reCaptcha process
      const $placeholder = $form.find('.g-recaptcha')
      if( $placeholder.length > 0 ) {
        e.preventDefault()

        grecaptcha.execute( $placeholder.data('widget-id') )
      }
    })

5. 享受

Answer 7

對於 Google Recaptcha V3 頁面上的多個 Recpatchas：

HTML :

<script src="https://www.google.com/recaptcha/api.js?render=explicit&onload=grecaptcha_onload"></script>
<script>
    function grecaptcha_onload() {
        $('.g-recaptcha-response').each(function( k, v ) {
            var submit = $(v).closest("form").find('[type="submit"]');
            grecaptcha.render( submit[0], {
                'sitekey' : SITE_KEY,
                'callback' : function( token ) {
                    $(v).closest("form").find('.g-recaptcha-response').val( token );
                    $(v).closest("form").submit();
                },
                'size' : 'invisible',
            });
        });
    }
</script>
<form>
    <input type="hidden" value="" name="g-recaptcha-response" class="g-recaptcha-response" />
    <button type="submit">Submit</button>
</form>
<form>
    <input type="hidden" value="" name="g-recaptcha-response" class="g-recaptcha-response" />
    <button type="submit">Submit</button>
</form>

PHP :

    function validate()
    {
        if( $_SERVER['REQUEST_METHOD'] == 'POST' ) {
            // Build POST request:
            $recaptcha_url = 'https://www.google.com/recaptcha/api/siteverify';
            $recaptcha_response = $_POST[ 'g-recaptcha-response' ];
            $recaptcha = file_get_contents( $recaptcha_url . '?secret=' . self::SECRET_KEY . '&response=' . $recaptcha_response );
            $recaptcha = json_decode( $recaptcha );

            if( $recaptcha->success == true ){
                // Take action based on the score returned:
                if( $recaptcha->score >= 0.1 ) {
                    return true;
                } else {
                    $this->errors[] = 'Something went wrong with sumbitting the form.<br />Please try again!';

                    foreach( (array) $recaptcha as $key => $value ) {
                        $this->errors[] = 'Key: ' . $key . ' Value: ' . $value;
                    }

                    return false;
                }
            } else { // there is an error /
                switch ( $recaptcha->{'error-codes'}[0] ) {
                    case 'missing-input-secret':
                        $this->errors[] = 'The secret parameter is missing';
                        break;
                    case 'invalid-input-secret':
                        $this->errors[] = 'The secret parameter is invalid or malformed';
                        break;
                    case 'missing-input-response':
                        $this->errors[] = 'The response parameter is missing';
                        break;
                    case 'invalid-input-response':
                        $this->errors[] = 'The response parameter is invalid or malformed';
                        break;
                    case 'bad-request':
                        $this->errors[] = 'The request is invalid or malformed';
                        break;
                    case 'timeout-or-duplicate':
                        $this->errors[] = 'The response is no longer valid: either is too old or has been used previously';
                        break;
                    default:
                        break;
                }

                return false;
            }
        }
    }