webhook.php

<?php

// Bootup the Composer autoloader
include '../api-library/vendor/autoload.php';  
session_start();
use Mautic\Auth\ApiAuth;
use Mautic\MauticApi;


// facebook variables 
$challenge = isset($_REQUEST['hub_challenge']) ? $_REQUEST['hub_challenge'] : '';
$verify_token = isset($_REQUEST['hub_verify_token']) ? $_REQUEST['hub_verify_token'] : ''; 

$fb_access_token = ""; // you have to subscribe to the page that has the form to generate an Access Token


//Mautic variables
// ApiAuth::initiate will accept an array of OAuth settings
$settings = array(
    'baseUrl'          => '',       // Base URL of the Mautic instance
    'version'          => 'OAuth2', // Version of the OAuth can be OAuth2 or OAuth1a. OAuth2 is the default value.
    'clientKey'        => '',       // Client/Consumer key from Mautic
    'clientSecret'     => '',       // Client/Consumer secret key from Mautic
    'callback'         => ''        // Redirect URI/Callback URI to this script
);


// If you already have the access token, pass them in as well to prevent the need for reauthorization
$settings['accessToken']        = "";
$settings['accessTokenSecret']  = ""; //for OAuth1.0a
$settings['accessTokenExpires'] = ""; //UNIX timestamp
$settings['refreshToken']       = "";

 


// this is used to subscribe to facebook webhook
if ($verify_token === 'abc133') { // 
  echo $challenge;
}


//$string = '{"entry":[{"changes":[{"field":"leadgen","value":{"ad_id":0,"form_id":624049361108589,"leadgen_id":701196670060524,"created_time":1488987674,"page_id":561823650667842,"adgroup_id":0}}],"id":"561823650667842","time":1488987675}],"object":"page"}	';
//$data = json_decode($string, true);

// Process retrieved data from facebook webhook
$data = json_decode(file_get_contents("php://input"),true);
$leadgen_id = $data['entry'][0]['changes'][0]['value']['leadgen_id']; // extract leadgen ID


// check leadgen ID before calling Facebook API
if($leadgen_id){
	$ch = curl_init();

	$url = "https://graph.facebook.com/v2.8/".$leadgen_id;
	$url_query = "access_token=".$fb_access_token; 

	$url_final = $url.'?'.$url_query;
	curl_setopt($ch, CURLOPT_URL, $url_final);
	curl_setopt($ch, CURLOPT_HTTPGET, 1);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	$response = curl_exec($ch);
	curl_close ($ch);
	$data = json_decode($response, true);
	var_dump($data);
	$lead_email = $data['field_data'][0][values][0];
	$lead_first = $data['field_data'][1][values][0];
	$lead_last = $data['field_data'][2][values][0];
} 


// check if we have a valid lead before calling Mautic Api
if($lead_email){
	
	// Initiate the auth object
	$apiAuth = new ApiAuth();
	$auth = $apiAuth->newAuth($settings);

	// Initiate process for obtaining an access token; this will redirect the user to the $authorizationUrl and/or
	// set the access_tokens when the user is redirected back after granting authorization
	// If the access token is expired, and a refresh token is set above, then a new access token will be requested

	$auth->enableDebugMode();

	try {
    	if ($auth->validateAccessToken()) {
	    	

        	// Obtain the access token returned; call accessTokenUpdated() to catch if the token was updated via a
			// refresh token

			// $accessTokenData will have the following keys:
			// For OAuth1.0a: access_token, access_token_secret, expires
			// For OAuth2: access_token, expires, token_type, refresh_token
        
			if ($auth->accessTokenUpdated()) {
            	$accessTokenData = $auth->getAccessTokenData();
            	// variables will be printed, you can copy them and store them in the variables above to avoid reauthorization
				var_dump($accessTokenData); 				
        	}
    	}else{
        
        	echo 'not valid access token';

    	}
	} catch (Exception $e) {
    	// Do Error handling
	}


	// Create an api context by passing in the desired context (Contacts, Forms, Pages, etc), the $auth object from above
	// and the base URL to the Mautic server (i.e. http://my-mautic-server.com/api/)

	$api = new MauticApi();
	$contactApi = $api->newApi('contacts', $auth, $settings['baseUrl']);

	//Create a new Contact

	$fields =array(); 

	$fields['firstname'] = $lead_first;
	$fields['lastname'] = $lead_last;
	$fields['email'] = $lead_email;
	$fields['position'] = "coconut"; // i used this to automatically subscribe lead to a list


	// Set the IP address the contact originated from if it is different than that of the server making the request
	//$data['ipAddress'] = $ipAddress;

	// Create the contact 
	$contact = $contactApi->create($fields);

	if (isset($contact['error'])) {
    	echo $contact['error']['code'] . ": " . $result['error']['message'];
	} else {
    	// do whatever with the info
		echo "Contact created!";
	}

} // end valid lead check

?>