如何与表单联系人一起使用reCAPTCHA? [英] How can I use reCAPTCHA with my form contact?

问题描述

当我按表单上的提交"按钮时，reCAPTCHA将允许.我的表格可以发送邮件而无需检查我不是机器人.我不知道这是否包含ajax.如何与表单联系人一起使用reCAPTCHA?

非常感谢您的时间和协助.

这是我的HTML代码.

 < form class ="callus" onSubmit ="return false">< div id ="result"></div><输入type ="text" name ="name" id ="name"><输入type ="email" name ="email" id ="email">< textarea name ="message" id ="message"></textarea>< div class ="g-recaptcha" data-sitekey ="XXXXX"></div>< button id ="submit_btn">提交</button></form> 

这是我的Javascript.

  jQuery(document).ready(function($){$(#submit_btn").click(function(){var user_name = $('input [name = name]').val();var user_email = $('input [name = email]').val();var user_message = $('textarea [name = message]').val();var post_data，输出；varproced = true;if(user_name =="){继续=假;}if(user_email =="){继续=假;}if(user_subject =="){继续=假;}if(user_message =="){继续=假;}如果(继续){post_data = {'userName':user_name，'userEmail':user_email，'userMessage':user_message};$ .post('email.php'，post_data，function(response){if(response.type =='错误'){输出='< div class ="alert-danger">'+ response.text +'</div>';;}别的{输出='< div class ="alert-success">'+ response.text +'</div>';$('.callus input').val('');$('.callus textarea').val('');}$(#result").hide().html(output).slideDown();}，'json');}});$(.callus input，.callus textarea").keyup(function(){$(#result").slideUp();});}); 

email.php

 <?phpif($ _ POST){$ to_Email ='[e-mail]';$ subject ='新联系人查询';if(！isset($ _ SERVER ['HTTP_X_REQUESTED_WITH'])AND strtolower($ _ SERVER ['HTTP_X_REQUESTED_WITH'])！='xmlhttprequest'){$输出= json_encode(大批('type'=>'错误'，'文本'=>请求必须来自Ajax"))；die($ output);}if(！isset($ _ POST ["userName"]))||！isset($ _ POST ["userEmail"])||！isset($ _ POST ["userMessage"]))){$ output = json_encode(array('type'=>'error'，'text'=>'输入字段为空！'));die($ output);}$ user_Name = filter_var($ _ POST ["userName"]，FILTER_SANITIZE_STRING);$ user_Email = filter_var($ _ POST ["userEmail"]，FILTER_SANITIZE_EMAIL);$ user_Message = filter_var($ _ POST ["userMessage"]，FILTER_SANITIZE_STRING);if(strlen($ user_Name)< 3){$ output = json_encode(array('type'=>'error'，'text'=>'名称太短或为空！'));die($ output);}if(！filter_var($ user_Email，FILTER_VALIDATE_EMAIL)){$ output = json_encode(array('type'=>'error'，'text'=>'请输入有效的电子邮件！'));die($ output);}if(strlen($ user_Message)< 5){$ output = json_encode(array('type'=>'error'，'text'=>'消息太短！请输入内容.'));die($ output);}$ message_Body =< strong>名称:</strong>".$ user_Name.< br>";$ message_Body.="< strong>电子邮件:</strong>.$ user_Email.< br>";$ message_Body.="< strong>消息:</strong>.$ user_Message.< br>";$ headers =发件人:".strip_tags($ user_Email)."\ r \ n";$ headers.="回复至:.strip_tags($ user_Email)."\ r \ n";$ headers.=" MIME版本:1.0 \ r \ n;$ headers.=内容类型:文本/html; charset = ISO-8859-1 \ r \ n";$ sentMail = @mail($ to_Email，$ subject，$ message_Body，$ headers);if(！$ sentMail){$ output = json_encode(array('type'=>'error'，'text'=>'无法发送邮件！请检查您的PHP邮件配置.'));die($ output);}别的{$ output = json_encode(array('type'=>'message'，'text'=>'嗨'.$ user_Name.'感谢您与我们联系.'));die($ output);}}?> 

解决方案

您必须在服务器端验证验证码.一旦您检查了验证码，它将为您提供验证码.

  var captchaCode = this.grecaptcha.getResponse(); 

Re-Captcaha 提供类似

的回调函数

 < div class ="g-recaptcha" id ="headerCaptcha" data-callback ="recaptchaCallbackHeader" data-expired-callback ="recaptchaExpiryHeader" data-sitekey ="xxx"></div> 

您必须将此capthca代码发布到backednd以便在 recaptchaCallbackHeader 中进行验证.(有关详细代码，请参见下面的链接)

  $ secretKey =在这里放置您的秘密密钥";$ ip = $ _SERVER ['REMOTE_ADDR'];$ response = file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=".$ secretKey.& response =".$ captcha.& remoteip =".$ ip); 

您将获得此API的响应.

  $ responseKeys = json_decode($ response，true);if(intval($ responseKeys ["success"])！== 1){回声'< h2>您不是@ $％K out</h2>'的机器人';} 别的 {echo'< h2>感谢发表评论.</h2>';} 

请记住Recaptcha提供两种类型的密钥.

1. 在服务器端用于验证验证码的私钥.
2. 用于在clint一侧呈现验证码的网站密钥.

查看reCaptcah的工作原理

并且在此处使用PHP进行验证.

When I press button Submit on form, reCAPTCHA will allow. My form can send message without check I'm not a robot. I don't know if it's about include ajax. How can I use reCAPTCHA with my form contact?

Thank you very much for your time and assistance in this matter.

This my HTML code.

<form class="callus" onSubmit="return false">
  <div id="result"></div>
  <input type="text" name="name" id="name">
  <input type="email" name="email" id="email">
  <textarea name="message" id="message"></textarea>
  <div class="g-recaptcha" data-sitekey="XXXXX"></div>
  <button id="submit_btn">Submit</button>
</form>

This is my Javascript.

jQuery(document).ready(function($){
  $("#submit_btn").click(function() {
    var user_name       = $('input[name=name]').val();
    var user_email      = $('input[name=email]').val();
    var user_message    = $('textarea[name=message]').val();

    var post_data, output;
    var proceed = true;
      if(user_name==""){
        proceed = false;
      }
      if(user_email==""){
        proceed = false;
      }
      if(user_subject==""){
        proceed = false;
      }
      if(user_message==""){
        proceed = false;
      }

      if(proceed) {
        post_data = {'userName':user_name, 'userEmail':user_email, 'userMessage':user_message};

        $.post('email.php', post_data, function(response){

          if(response.type == 'error') {
            output = '<div class="alert-danger">'+response.text+'</div>';
          }else{
            output = '<div class="alert-success">'+response.text+'</div>';
            $('.callus input').val('');
            $('.callus textarea').val('');
          }
        $("#result").hide().html(output).slideDown();
      }, 'json');
    }
  });

  $(".callus input, .callus textarea").keyup(function() {
    $("#result").slideUp();
  });
});

email.php

<?php
  if($_POST) {
    $to_Email       = '[e-mail]';
    $subject        = 'New Contact Inquiry';

    if(!isset($_SERVER['HTTP_X_REQUESTED_WITH']) AND strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) != 'xmlhttprequest') {

      $output = json_encode(
        array(
          'type'=>'error',
          'text' => 'Request must come from Ajax'
      ));
      die($output);
    }

    if(!isset($_POST["userName"]) || !isset($_POST["userEmail"]) || !isset($_POST["userMessage"])) {
      $output = json_encode(array('type'=>'error', 'text' => 'Input fields are empty!'));
      die($output);
    }

    $user_Name        = filter_var($_POST["userName"], FILTER_SANITIZE_STRING);
    $user_Email       = filter_var($_POST["userEmail"], FILTER_SANITIZE_EMAIL);
    $user_Message     = filter_var($_POST["userMessage"], FILTER_SANITIZE_STRING);

    if(strlen($user_Name)<3) {
      $output = json_encode(array('type'=>'error', 'text' => 'Name is too short or empty!'));
      die($output);
    }
    if(!filter_var($user_Email, FILTER_VALIDATE_EMAIL)) {
      $output = json_encode(array('type'=>'error', 'text' => 'Please enter a valid email!'));
      die($output);
    }

    if(strlen($user_Message)<5) {
      $output = json_encode(array('type'=>'error', 'text' => 'Too short message! Please enter something.'));
      die($output);
    }

    $message_Body = "<strong>Name: </strong>". $user_Name ."<br>";
    $message_Body .= "<strong>Email: </strong>". $user_Email ."<br>";
    $message_Body .= "<strong>Message: </strong>". $user_Message ."<br>";

    $headers = "From: " . strip_tags($user_Email) . "\r\n";
    $headers .= "Reply-To: ". strip_tags($user_Email) . "\r\n";
    $headers .= "MIME-Version: 1.0\r\n";
    $headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";

    $sentMail = @mail($to_Email, $subject, $message_Body, $headers);

    if(!$sentMail) {
      $output = json_encode(array('type'=>'error', 'text' => 'Could not send mail! Please check your PHP mail configuration.'));
      die($output);
    }else{
      $output = json_encode(array('type'=>'message', 'text' => 'Hi '.$user_Name .' Thank you for contacting us.'));
      die($output);
    }
  }
?>

解决方案

You have to validate captcha code at server side . Once you checked captcha it will give you captcha code.

var captchaCode = this.grecaptcha.getResponse();

Re-Captcaha provide callback functions like

<div class="g-recaptcha" id="headerCaptcha" data-callback="recaptchaCallbackHeader" data-expired-callback="recaptchaExpiryHeader" data-sitekey="xxx"></div>

You have to post this capthca code to backednd for validation inside recaptchaCallbackHeader. (refer below links for detail code)

    $secretKey = "Put your secret key here";
    $ip = $_SERVER['REMOTE_ADDR'];
    $response=file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=".$secretKey."&response=".$captcha."&remoteip=".$ip);

Inresponse of this API you will get .

  $responseKeys = json_decode($response,true);
    if(intval($responseKeys["success"]) !== 1) {
      echo '<h2>You are not a robot  @$%K out</h2>';
    } else {
      echo '<h2>Thanks for posting comment.</h2>';
    }

Remember recaptcha provide two types of keys.

1. Private key which is used on server side for validation of captcha code.
2. Site-key which is used to render captcha on clint side.

See how reCaptcah works

And Here to validate using PHP.

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