Plugin that saves a lead from OptinMonster to HubSpot CRM (directly)

custom_html_form.html

<form role="form"  method="POST" action="/" onsubmit="return false;" class="optin-tk-forms">                                            
	<input placeholder="Fullname" id="nombre"  name="name" type="text" />
	<input placeholder="Email" id="email"  name="email" type="text" />
	<input autcomplete="off" placeholder="ej. @twitter" name="twitter" type="text" class="optinMonster-twitter"/>
	<!-- [name=twitter] imput field should be set to display:none or any other technique that makes that imput dissapear (HoneyPot Technique) -->
	<input type="radio" name="contact_type" value="recruiter" checked/>are you recruiter? &nbsp; <input type="radio" name="contact_type" value="candidate"/> Are you candidateo?<br/>
	<input type="submit" value="Enviar" />
</form>

wp-plugin.php

<?php
/**
 * Plugin Name: OptinMonster + HubSpot CRM
 * Plugin URI: https://blog.talenteca.com
 * Description: Saves the lead from an optin directly to HubSpot CRM with custom fields
 * Author: Juan José de la Torre
 * Author URI: http://twitter.com/juanjodlt
 * Version: 0.0.1
 */
add_action( 'wp_footer', 'save_lead_to_hubspot_javascript' );
add_action( 'wp_ajax_save_lead_to_hubspot', 'save_lead_to_hubspot_callback' );
add_action( 'wp_ajax_nopriv_save_lead_to_hubspot', 'save_lead_to_hubspot_callback' );


function save_lead_to_hubspot_javascript() { ?>
	<script type="text/javascript">
		jQuery(document).ready(function() {
	  	jQuery(document).on('OptinMonsterOptinSuccess', function(event, props, object) {
				var email = props.optin_data.fields.email;
				var name = props.optin_data.fields.name;
				var twitterHandler = props.optin_data.fields.twitter;
				var contactType =  jQuery('.optin-tk-forms input:radio[name=contact_type]:checked').val() || 'candidato';

				var data = {
					"action": "save_lead_to_hubspot",
					"email": email,
					"fullname": name,
					"twitter_username" : twitterHandler,
					"contact_type" : contactType
				};
				jQuery.post("<?php echo admin_url('admin-ajax.php');?>", data, function(data, textStatus, jqXHR) {
					var result =  jQuery.parseJSON(data);
					if (result.error == '') {
						alert('Thanks for subscribing!.');
						object.trackEvent('conversion', object.getProp('ga_campaign'), object.getProp('ga_campaign_id')); 
					} else {
						alert(result.error);
					}
				});
			});	
		});

	</script> <?php
}


function save_lead_to_hubspot_callback() {

	$fullname = sanitize_text_field($_POST['fullname']);
	$email = sanitize_email($_POST['email']);
	$honey_pot_value = $_POST['twitter_username'];  #http://haacked.com/archive/2007/09/11/honeypot-captcha.aspx/
	$contact_type = sanitize_text_field($_POST['contact_type']);

	$response = array('error' => '' );
	if ($fullname == '' || $email == '' || $contact_type == '') {
		$response['error'] = 'All fields are requiered!';
		echo json_encode($response);
		wp_die();
	}

	if ($honey_pot_value !== '') {
		wp_mail('admin@domain.com', '[blog-alert] ** SPAM ALERT **', admin_email_body_generator($_SERVER, 'honey_pot form field was filled, someones is trying to do spam'));
		echo json_encode($response);
		wp_die();
	}

	$hapikey = HUBSPOT_SALES_API_KEY;
	$hubspot_url_endpoint = 'http://api.hubapi.com/contacts/v1/contact/createOrUpdate/email/'.$email.'/?hapikey='. $hapikey;

	@list($firstName, $lastName) = @explode(' ', $fullname, 2);

	$data = array(
	        'properties' => array(
	            array(
	                'property' => 'email',
	                'value' => $email
	            ),
	            array(
	                'property' => 'firstname',
	                'value' => $firstName
	            ),
	            array(
	                'property' => 'lastname',
	                'value' => $lastName
	            ),
	            array(
	            		'property' 	=> 'contact_type',
	            		'value' 		=> $contact_type 
	            )
	        )
	    );

	$data_as_json = json_encode($data);

	$ch = curl_init();
	curl_setopt($ch, CURLOPT_POST, true);
	curl_setopt($ch, CURLOPT_POSTFIELDS, $data_as_json);
	curl_setopt($ch, CURLOPT_URL, $hubspot_url_endpoint);
	curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	$hubSpot_response = curl_exec($ch);
	$call_info = curl_getinfo($ch);
	curl_close($ch);

	if ($call_info['http_code'] !== 200) {
		$response['error'] = 'Error!';
		wp_mail('admin@domain.com', '[blog-alert] ** HubSpot API call failed **', admin_email_body_generator(array('server_data' => $_SERVER), 'Failed when trying to save a lead. HubSpot API response :: '. "\n\n" . var_export(json_decode($hubSpot_response), true)));
		echo json_encode($response);
		wp_die();
	} else {
		echo json_encode($response);
		wp_die();
	}

}

function admin_email_body_generator($request, $message) {
	$body = $message . "\n\n";
	$body .= 'Server data (IP and stuff) :: ' ."\n\n";
	$body .= var_export($request, true);

	return $body;
}

?>