我有一个联系表单，可以通过AJAX执行验证客户端和服务器端。
但是在联系表单上实施Google ReCaptcha v2时遇到了一些困难。我已经尝试过实现，但是我做错了。
有人可以建议我如何正确实施吗？
Javascript：
$(window).load(function() {
$("#loader").fadeOut("slow");
$('#main').fadeIn("slow");
});
$(document).ready(function(){
jQuery.validator.setDefaults({
errorPlacement : function(error, element) {
element.removeClass('has-success').addClass('has-error');
}
});
$('#contactForm').validate( {
submitHandler : function(form) {
return false;
},
rules : {
emailAddress:{
required: true,
email: true
},
firstName:{
required : true,
minlength : 3,
maxlength : 50
},
lastName:{
required : true,
minlength : 3,
maxlength : 50
},
companyName:{
required : true,
minlength : 3,
maxlength : 50
},
companyAddress: {
required : true,
minlength : 10
},
city: {
required : true,
minlength : 10
},
message: {
required : true,
minlength : 50
}
},
messages : {
emailAddress:{
required : "Please enter your Email"
},
firstName:{
required : "Please enter your name"
},
lastName:{
required : "Please enter your name"
},
companyName:{
required : "Please enter your name"
},
companyAddress: {
required : "Please enter your contact purpose",
minlength : "Minimum length of subject must be 10 chars long."
},
city: {
required : "Please enter your contact purpose",
minlength : "Minimum length of subject must be 10 chars long."
},
message: {
required : "Please enter your sweet message",
minlength : "Minimum length of your message must be 50 chars long."
}
},
errorPlacement : function(error, element) {
$(element).closest('div.form-group').find('.help-block').html(error.html());
},
highlight : function(element) {
$(element).closest('div.form-group').removeClass('has-success').addClass('has-error');
},
unhighlight: function(element, errorClass, validClass) {
$(element).closest('div.form-group').removeClass('has-error').addClass('has-success');
$(element).closest('div.form-group').find('.help-block').html('');
}
});
$(document).on('click', '#sendMailBtn', function(e){
e.preventDefault();
if( $('#contactForm').valid() ) {
var sendMailBtn = $('#sendMailBtn');
sendMailBtn.button('loading');
$.ajax({
url: 'ajax.php',
method: 'post',
dataType: 'json',
data : { data: JSON.stringify($('#contactForm').serializeObject()) },
success: function( response ){
sendMailBtn.button('reset');
$('input,textarea').val('');
showSuccessMessage();
},
error: function( response ) {
sendMailBtn.button('reset');
if( response.status === 400 || response.status === 403 || response.status === 500 ) {
showWarningMessage(response.responseJSON.message);
} else {
showWarningMessage();
}
}
});
}
return false;
});
function showSuccessMessage(){
swal({
title: "Many Thanks!!!",
text: "Thanks for contacting us, We will get back to your inbox shortly...",
type: "success",
html: true
/*imageUrl: "img/thumbs-up.jpg"*/
});
}
function showWarningMessage(message){
if(typeof message === 'undefined' || message === '' ) message = "Something went wrong, Please try again.";
swal({
title: "Oops...",
text: message,
type: "error",
html: true
});
}
$.fn.serializeObject = function()
{
var o = {};
var a = this.serializeArray();
$.each(a, function() {
if (o[this.name] !== undefined) {
if (!o[this.name].push) {
o[this.name] = [o[this.name]];
}
o[this.name].push(this.value || '');
} else {
o[this.name] = this.value || '';
}
});
return o;
};
});
PHP：
<?php
require_once 'config.php';
require 'vendor/autoload.php';
$response = [
'status' => 'success',
'message' => 'Mail sent successfully',
'data' => []
];
//Checking is it ajax request
if (strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) !== 'xmlhttprequest') {
//Invalid Ajax request
http_response_code(403);
$response = [
'status' => 'error',
'message' => 'Invalid request, please try again.',
'data' => []
];
responseHandler($response);
}
if( !isset($_POST['data']) ) {
http_response_code(400);
$response = [
'status' => 'error',
'message' => 'Empty post data.',
'data' => []
];
responseHandler($response);
}
$data = json_decode($_POST['data'], true); $errors = '';
//Email validation
if ( isset($data["emailAddress"]) && !empty( $data["emailAddress"] ) ) {
$email = trim($data["emailAddress"]);
if ( filter_var($emailAddress, FILTER_VALIDATE_EMAIL) === false){
$errors .= "$emailAddress is <strong>NOT</strong> a valid email address.<br/>";
}
} else {
$errors .= 'Please enter your email address.<br/>';
}
//First Name Validation
if ( isset($data["firstName"]) && !empty( $data["firstName"] ) ) {
$name = trim( $data["firstName"] );
if ( filter_var($firstName, FILTER_SANITIZE_STRING) === false){
$errors .= 'Please enter a valid first name.<br/>';
} elseif (!preg_match("/^[a-zA-Z ]*$/",$firstName)) {
$errors .= 'Only letters and white space allowed for first name...<br/>';
}
} else {
$errors .= 'Please enter your name.<br/>';
}
//Last Name Validation
if ( isset($data["lastName"]) && !empty( $data["lastName"] ) ) {
$name = trim( $data["lastName"] );
if ( filter_var($lastName, FILTER_SANITIZE_STRING) === false){
$errors .= 'Please enter a valid name.<br/>';
} elseif (!preg_match("/^[a-zA-Z ]*$/",$lastName)) {
$errors .= 'Only letters and white space allowed for last name...<br/>';
}
} else {
$errors .= 'Please enter your name.<br/>';
}
//Company Name Validation
if ( isset($data["companyName"]) && !empty( $data["companyName"] ) ) {
$name = trim( $data["companyName"] );
if ( filter_var($companyName, FILTER_SANITIZE_STRING) === false){
$errors .= 'Please enter a valid name.<br/>';
} elseif (!preg_match("/^[a-zA-Z ]*$/",$companyName)) {
$errors .= 'Only letters and white space allowed for company name...<br/>';
}
} else {
$errors .= 'Please enter your name.<br/>';
}
//Company Address Validation
if ( isset($data["companyAddress"]) && !empty( $data["companyAddress"] ) ) {
$subject = trim( $data["companyAddress"] );
if ( filter_var($companyAddress, FILTER_SANITIZE_STRING) === false){
$errors .= 'Please enter a company Address to send.<br/>';
}
} else {
$errors .= 'Please enter a company Address to send.<br/>';
}
//City Name Validation
if ( isset($data["city"]) && !empty( $data["city"] ) ) {
$name = trim( $data["city"] );
if ( filter_var($city, FILTER_SANITIZE_STRING) === false){
$errors .= 'Please enter a valid city.<br/>';
} elseif (!preg_match("/^[a-zA-Z ]*$/",$city)) {
$errors .= 'Only letters and white space allowed for city name...<br/>';
}
} else {
$errors .= 'Please enter your city name.<br/>';
}
//Message Validation
if ( isset($data["message"]) && !empty( $data["message"] ) ) {
$message = trim( $data["message"] );
if ( filter_var($message, FILTER_SANITIZE_STRING) === false){
$errors .= 'Please enter a message to send.<br/>';
}
} else {
$errors .= 'Please enter a message to send.<br/>';
}
//Google ReCaptcha
if (isset($_POST['g-recaptcha-response']) && !empty($_POST['g-recaptcha-response'])) {
$response = $_POST['g-recaptcha-response'];
} else if (isset($_GET['g-recaptcha-response']) && !empty($_GET['g-recaptcha-response'])) {
$response = $_GET['g-recaptcha-response'];
}
if (isset($response) && !empty($response)) {
$url = 'https://www.google.com/recaptcha/api/siteverify';
$data = [
'secret' => $apiSecret,
'response' => $response
];
$options = [
'http' => [
'method' => 'POST',
'content' => http_build_query($data)
]
];
$context = stream_context_create($options);
$verify = file_get_contents($url, false, $context);
$captcha_success = json_decode($verify);
if ($captcha_success->success == false) {
return false;
} else {
return true;
}
} else {
return false;
}
}
if(!empty( $errors )) {
http_response_code(400);
$response = [
'status' => 'error',
'message' => $errors,
'data' => []
];
responseHandler($response);
}
//Filtering out newlines in the email subject
$subject = str_replace(array("\r","\n"),array(" "," "),$subject);
$contactContent = file_get_contents('email_templates/contact.html');;
$parameters = ['name' => $name, 'to_name' => TO_NAME, 'message' => $message ];
if(! send_mail( $email, $subject, $contactContent, $parameters ) ){
//Email sent failed.
http_response_code(500);
$response = [
'status' => 'error',
'message' => 'Email service failing temporarily Or Maybe you are entered invalid E-mail, Please enter valid email and try again.',
'data' => []
];
responseHandler($response);
} else {
//Email successfully sent
http_response_code(200);
responseHandler($response);
}
/**
* responseHandler function
* @param array $response request response
*/
function responseHandler($response)
{
header('Content-type: application/json');
echo json_encode($response);
exit;
}
/**
* send_mail function
* @param string $email [[Description]]
* @param string $Subject [[Description]]
* @param string $message [[Description]]
* @param array [$parameters = []] [[Description]]
* @return boolean [[Description]]
*/
function send_mail($email, $Subject, $message, $parameters = []){
////Parse the message with given parameters
if( !empty( $parameters ) )$message = parse($message, $parameters);
$mail = new PHPMailer;
//$mail->SMTPDebug = 3; // Enable verbose debug output
$mail->isSMTP(); // Set mailer to use SMTP
$mail->Host = SMTP_HOST; // Specify main and backup SMTP servers
$mail->SMTPAuth = SMTP_AUTH; // Enable SMTP authentication
$mail->Username = SMTP_USERNAME;
$mail->Password = SMTP_PASSWORD;
$mail->SMTPSecure = SMTP_SECURE; // Enable TLS encryption, `ssl` also accepted
$mail->Port = SMTP_PORT; // TCP port to connect to
if( isset($parameters['name']) )
$mail->setFrom($email, $parameters['name']);
else
$mail->setFrom($email);
$mail->addAddress(TO_EMAIL); // Add a recipient
//$mail->addReplyTo($email, 'Smart Invoice V3 Promotion');
$mail->addBCC(TO_EMAIL);
$mail->isHTML(true); // Set email format to HTML
$mail->Subject = $Subject;
$mail->Body = $message;
$mail->AltBody = strip_tags($message);
if(!$mail->send()) {//$mail->ErrorInfo;
return false;
}
return true;
}
/**
* parse function
* @param string $message [[Description]]
* @param array $parameters [[Description]]
* @return string [[Description]]
*/
function parse($message, $parameters) {
foreach ($parameters as $key => $value) {
$message = str_replace('{'.$key.'}', $value, $message);
}
return $message;
}