<?php
/**
 * Description: This is where the email address given will be posted once the user has filled it in on the newsletter widget
 */

// Include file with auth vars
require_once('../../../wp-config.php');

// Define variables
$useremail = "";
$apiemail = get_option('apiemail');
$apipassword = get_option('apipassword');
$listID = get_option('listID');
$xml_string = "";
$input_unsuccessful_slug = get_option('slugUnsuccess');
$input_successful_slug = get_option('slugSuccess');

// Tidies slug slashes
$unsuccessful_slug = str_replace('/', '', $input_unsuccessful_slug);
$successful_slug = str_replace('/', '', $input_successful_slug);

// Create un/success URLs
$success_url = site_url() . '/' . $successful_slug;
$unsuccess_url = site_url() . '/' . $unsuccessful_slug;

// Test for validation
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $useremail = test_input($_POST["useremail"]);
}

// Tidy input
function test_input($data) {
  $data = trim($data);
  $data = stripslashes($data);
  $data = htmlspecialchars($data);
  return $data;
}

// Sanitise email
$clean_useremail = filter_var($useremail, FILTER_SANITIZE_EMAIL);

// Build URL
$auth_url = 'https://api.dotmailer.com/v2/address-books/' . $listID .'/contacts';

// Create the XML data to be added
$xml = array(
    'id' => 'generic',
    'email' => $clean_useremail,
    'optInType' => 'Unknown',
    'emailType' => 'Html',
    'dataFields' => ':null',
    'status' => 'Subscribed'
);

// JSON
$xml_string = json_encode($xml);

// The request
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$auth_url);
curl_setopt($ch,CURLOPT_POST, count($xml));
curl_setopt($ch,CURLOPT_POSTFIELDS, $xml_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_USERPWD, "$apiemail:$apipassword");
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Content-Type: application/json',
    'Content-Length: ' . strlen($xml_string))
);
$result = curl_exec ($ch);
$status_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);   //get status code
curl_close ($ch);

// User feedback
if (isset($status_code)) {
    if ($status_code == '200'){
        header('Location:' . $success_url);
    }
    else if ($status_code =='400'){
        header('Location:' . $unsuccess_url);
    }
    else{
        echo 'Submission success undetermined. HTTP response = ' . $status_code . '<br />Please contact the site administrator';
    }
};


?>