/**
 * pfValidIP
 *
 * @author Jonathan Smit (PayFast.co.za)
 * @param $sourceIP String Source IP address
 */
function pmpro_pfValidIP($sourceIP)
{
    // Variable initialization
    $validHosts = array('www.payfast.co.za', 'sandbox.payfast.co.za', 'w1w.payfast.co.za', 'w2w.payfast.co.za');
    $validIps = array();
    foreach ($validHosts as $pfHostname) {
        $ips = gethostbynamel($pfHostname);
        if ($ips !== false) {
            $validIps = array_merge($validIps, $ips);
        }
    }
    // Remove duplicates
    $validIps = array_unique($validIps);
    ipnlog("Valid IPs:\n" . print_r($validIps, true));
    if (in_array($sourceIP, $validIps)) {
        return true;
    } else {
        return false;
    }
}
function pmpro_ipnSaveOrder($txn_id, $last_order)
{
    global $wpdb;
    //check that txn_id has not been previously processed
    $old_txn = $wpdb->get_var("SELECT payment_transaction_id FROM {$wpdb->pmpro_membership_orders} WHERE payment_transaction_id = '" . $txn_id . "' LIMIT 1");
    if (empty($old_txn)) {
        //hook for successful subscription payments
        do_action("pmpro_subscription_payment_completed");
        //save order
        $morder = new MemberOrder();
        $morder->user_id = $last_order->user_id;
        $morder->membership_id = $last_order->membership_id;
        $morder->payment_transaction_id = $txn_id;
        $morder->subscription_transaction_id = $last_order->subscription_transaction_id;
        $morder->gateway = $last_order->gateway;
        $morder->gateway_environment = $last_order->gateway_environment;
        // Payment Status
        $morder->status = 'success';
        // We have confirmed that and thats the reason we are here.
        // Payment Type.
        $morder->payment_type = $last_order->payment_type;
        //set amount based on which PayPal type
        if ($last_order->gateway == "paypal") {
            $morder->InitialPayment = $_POST['amount'];
            //not the initial payment, but the class is expecting that
            $morder->PaymentAmount = $_POST['amount'];
        } elseif ($last_order->gateway == "paypalexpress") {
            $morder->InitialPayment = $_POST['amount'];
            //not the initial payment, but the class is expecting that
            $morder->PaymentAmount = $_POST['amount'];
        } elseif ($last_order->gateway == "paypalstandard") {
            $morder->InitialPayment = $_POST['mc_gross'];
            //not the initial payment, but the class is expecting that
            $morder->PaymentAmount = $_POST['mc_gross'];
        }
        $morder->FirstName = $_POST['first_name'];
        $morder->LastName = $_POST['last_name'];
        $morder->Email = $_POST['payer_email'];
        //get address info if appropriate
        if ($last_order->gateway == "paypal") {
            $morder->Address1 = get_user_meta($last_order->user_id, "pmpro_baddress1", true);
            $morder->City = get_user_meta($last_order->user_id, "pmpro_bcity", true);
            $morder->State = get_user_meta($last_order->user_id, "pmpro_bstate", true);
            $morder->CountryCode = "US";
            $morder->Zip = get_user_meta($last_order->user_id, "pmpro_bzip", true);
            $morder->PhoneNumber = get_user_meta($last_order->user_id, "pmpro_bphone", true);
            $morder->billing->name = $_POST['first_name'] . " " . $_POST['last_name'];
            $morder->billing->street = get_user_meta($last_order->user_id, "pmpro_baddress1", true);
            $morder->billing->city = get_user_meta($last_order->user_id, "pmpro_bcity", true);
            $morder->billing->state = get_user_meta($last_order->user_id, "pmpro_bstate", true);
            $morder->billing->zip = get_user_meta($last_order->user_id, "pmpro_bzip", true);
            $morder->billing->country = get_user_meta($last_order->user_id, "pmpro_bcountry", true);
            $morder->billing->phone = get_user_meta($last_order->user_id, "pmpro_bphone", true);
            //get CC info that is on file
            $morder->cardtype = get_user_meta($last_order->user_id, "pmpro_CardType", true);
            $morder->accountnumber = hideCardNumber(get_user_meta($last_order->user_id, "pmpro_AccountNumber", true), false);
            $morder->expirationmonth = get_user_meta($last_order->user_id, "pmpro_ExpirationMonth", true);
            $morder->expirationyear = get_user_meta($last_order->user_id, "pmpro_ExpirationYear", true);
            $morder->ExpirationDate = $morder->expirationmonth . $morder->expirationyear;
            $morder->ExpirationDate_YdashM = $morder->expirationyear . "-" . $morder->expirationmonth;
        }
        //save
        $morder->saveOrder();
        $morder->getMemberOrderByID($morder->id);
        //email the user their invoice
        $pmproemail = new PMProEmail();
        $pmproemail->sendInvoiceEmail(get_userdata($last_order->user_id), $morder);
        ipnlog("New order (" . $morder->code . ") created.");
        return true;
    } else {
        ipnlog("Duplicate Transaction ID: " . $txn_id);
        return false;
    }
}
function pmpro_ipnSaveOrder($txn_id, $last_order)
{
    global $wpdb;
    //check that txn_id has not been previously processed
    $old_txn = $wpdb->get_var("SELECT payment_transaction_id FROM {$wpdb->pmpro_membership_orders} WHERE payment_transaction_id = '" . $txn_id . "' LIMIT 1");
    if (empty($old_txn)) {
        //save order
        $morder = new MemberOrder();
        $morder->user_id = $last_order->user_id;
        $morder->membership_id = $last_order->membership_id;
        $morder->payment_transaction_id = $txn_id;
        $morder->subscription_transaction_id = $last_order->subscription_transaction_id;
        $morder->gateway = $last_order->gateway;
        $morder->gateway_environment = $last_order->gateway_environment;
        // Payment Status
        $morder->status = 'success';
        // We have confirmed that and thats the reason we are here.
        // Payment Type.
        $morder->payment_type = $last_order->payment_type;
        //set amount based on which PayPal type
        if (false !== stripos($last_order->gateway, "paypal")) {
            if (isset($_POST['amount']) && !empty($_POST['amount'])) {
                $morder->InitialPayment = $_POST['amount'];
                //not the initial payment, but the class is expecting that
                $morder->PaymentAmount = $_POST['amount'];
            } elseif (isset($_POST['mc_gross']) && !empty($_POST['mc_gross'])) {
                $morder->InitialPayment = $_POST['mc_gross'];
                //not the initial payment, but the class is expecting that
                $morder->PaymentAmount = $_POST['mc_gross'];
            } elseif (isset($_POST['payment_gross']) && !empty($_POST['payment_gross'])) {
                $morder->InitialPayment = $_POST['payment_gross'];
                //not the initial payment, but the class is expecting that
                $morder->PaymentAmount = $_POST['payment_gross'];
            }
        }
        $morder->FirstName = $_POST['first_name'];
        $morder->LastName = $_POST['last_name'];
        $morder->Email = $_POST['payer_email'];
        //get address info if appropriate
        if ($last_order->gateway == "paypal") {
            $morder->Address1 = get_user_meta($last_order->user_id, "pmpro_baddress1", true);
            $morder->City = get_user_meta($last_order->user_id, "pmpro_bcity", true);
            $morder->State = get_user_meta($last_order->user_id, "pmpro_bstate", true);
            $morder->CountryCode = "US";
            $morder->Zip = get_user_meta($last_order->user_id, "pmpro_bzip", true);
            $morder->PhoneNumber = get_user_meta($last_order->user_id, "pmpro_bphone", true);
            $morder->billing->name = $_POST['first_name'] . " " . $_POST['last_name'];
            $morder->billing->street = get_user_meta($last_order->user_id, "pmpro_baddress1", true);
            $morder->billing->city = get_user_meta($last_order->user_id, "pmpro_bcity", true);
            $morder->billing->state = get_user_meta($last_order->user_id, "pmpro_bstate", true);
            $morder->billing->zip = get_user_meta($last_order->user_id, "pmpro_bzip", true);
            $morder->billing->country = get_user_meta($last_order->user_id, "pmpro_bcountry", true);
            $morder->billing->phone = get_user_meta($last_order->user_id, "pmpro_bphone", true);
            //get CC info that is on file
            $morder->cardtype = get_user_meta($last_order->user_id, "pmpro_CardType", true);
            $morder->accountnumber = hideCardNumber(get_user_meta($last_order->user_id, "pmpro_AccountNumber", true), false);
            $morder->expirationmonth = get_user_meta($last_order->user_id, "pmpro_ExpirationMonth", true);
            $morder->expirationyear = get_user_meta($last_order->user_id, "pmpro_ExpirationYear", true);
            $morder->ExpirationDate = $morder->expirationmonth . $morder->expirationyear;
            $morder->ExpirationDate_YdashM = $morder->expirationyear . "-" . $morder->expirationmonth;
        }
        //figure out timestamp or default to none (today)
        if (!empty($_POST['payment_date'])) {
            $morder->timestamp = strtotime($_POST['payment_date']);
        }
        // Save the event ID for the last processed user/IPN (in case we want to be able to replay IPN requests)
        $ipn_id = isset($_POST['ipn_track_id']) ? sanitize_text_field($_POST['ipn_track_id']) : null;
        // Allow extraction of the IPN Track ID from the order notes (if needed)
        $morder->notes = "{$morder->notes} [IPN_ID]{$ipn_id}[/IPN_ID]";
        /**
         * Post processing for a specific subscription related IPN event ID
         *
         * @param       string      $ipn_id     - The ipn_track_id from the PayPal IPN request
         * @param       MemberOrder $morder     - The completed Member Order object for the IPN request
         */
        do_action('pmpro_subscription_ipn_event_processed', $ipn_id, $morder);
        if (!is_null($ipn_id)) {
            if (false === update_user_meta($morder->user_id, "pmpro_last_{$morder->gateway}_ipn_id", $ipn_id)) {
                ipnlog("Unable to save the IPN event ID ({$ipn_id}) to usermeta for {$morder->user_id} ");
            }
        }
        //save
        $morder->saveOrder();
        $morder->getMemberOrderByID($morder->id);
        //email the user their invoice
        $pmproemail = new PMProEmail();
        $pmproemail->sendInvoiceEmail(get_userdata($last_order->user_id), $morder);
        //hook for successful subscription payments
        do_action("pmpro_subscription_payment_completed", $morder);
        ipnlog("New order (" . $morder->code . ") created.");
        return true;
    } else {
        ipnlog("Duplicate Transaction ID: " . $txn_id);
        return false;
    }
}