/**
* Complete checkout and charge money.
*/
public function completeCheckout()
{
global $language;
$shop = shop::getInstance();
$return_url = fix_chars($_REQUEST['return_url']);
$recurring = isset($_REQUEST['type']) && $_REQUEST['type'] == 'recurring';
$transaction_uid = $_SESSION['transaction']['uid'];
// get billing information
$billing = array();
$fields = array('billing_full_name', 'billing_card_type', 'billing_credit_card', 'billing_expire_month', 'billing_expire_year', 'billing_cvv');
foreach ($fields as $field) {
if (isset($_REQUEST[$field])) {
$billing[$field] = fix_chars($_REQUEST[$field]);
}
}
// create recurring profile
if ($recurring) {
$request_id = 0;
$plan_name = $_SESSION['recurring_plan'];
$manager = PayPal_PlansManager::getInstance();
$plan = $manager->getSingleItem($manager->getFieldNames(), array('text_id' => $plan_name));
$current_plan = $shop->getRecurringPlan();
// cancel existing recurring payment if exists
if (!is_null($current_plan)) {
$plans = $this->get_recurring_plans();
$current_group = null;
// get plan data
if (isset($plans[$current_plan->plan_name])) {
$current_group = $plans[$current_plan->plan_name]['group'];
}
// cancel current plan
if (!is_null($current_group) && $current_group == $plan->group_name) {
$shop->cancelTransaction($current_plan->transaction);
}
}
// generate params for description
$plan_params = array('price' => $plan->price, 'period' => $plan->interval_count, 'unit' => $plan->interval, 'setup' => $plan->setup_price, 'trial_period' => $plan->trial_count, 'trial_unit' => $plan->trial);
// charge one time setup fee
// TODO: Charge one time setup fee.
// create recurring payments profile
$recurring_fields = $fields;
// set buyer information
$name = explode(' ', $billing['billing_full_name']);
$recurring_fields['CREDITCARDTYPE'] = $this->card_type[$billing['billing_card_type']];
$recurring_fields['ACCT'] = $billing['billing_credit_card'];
$recurring_fields['EXPDATE'] = $billing['billing_expire_month'] . $billing['billing_expire_year'];
$recurring_fields['FIRSTNAME'] = $name[0];
$recurring_fields['LASTNAME'] = $name[1];
// set starting date of the profile
$start_timestamp = strtotime($plan->start_time);
if ($start_timestamp < time()) {
$start_timestamp = time();
}
$recurring_fields['PROFILESTARTDATE'] = strftime('%Y-%m-%dT%T%z', $start_timestamp);
// set description
$recurring_fields['DESC'] = $shop->formatRecurring($plan_params);
// set currency
$recurring_fields['AMT'] = $plan->price;
$recurring_fields['CURRENCYCODE'] = $shop->getDefaultCurrency();
// billing period
$recurring_fields['BILLINGPERIOD'] = $this->units[$plan->interval];
$recurring_fields['BILLINGFREQUENCY'] = $plan->interval_count;
// trial period
if ($plan->trial_count > 0) {
$recurring_fields['TRIALBILLINGPERIOD'] = $this->units[$plan->trial];
$recurring_fields['TRIALBILLINGFREQUENCY'] = $plan->trial_count;
$recurring_fields['TRIALTOTALBILLINGCYCLES'] = 1;
}
// make api call
$response = PayPal_Helper::callAPI(PayPal_Helper::METHOD_CreateRecurringPaymentsProfile, $recurring_fields);
if ($response['ACK'] == 'Success' || $response['ACK'] == 'SuccessWithWarning') {
// update transaction token
$shop->setTransactionToken($transaction_uid, fix_chars($response['PROFILEID']));
// update transaction status
if ($response['PROFILESTATUS'] == 'ActiveProfile') {
$shop->setTransactionStatus($transaction_uid, TransactionStatus::COMPLETED);
}
} else {
// report error
$error_code = urldecode($response['L_ERRORCODE0']);
$error_long = urldecode($response['L_LONGMESSAGE0']);
trigger_error("PayPal_Express: ({$error_code}) - {$error_long}", E_USER_ERROR);
}
// redirect user
header('Location: ' . $return_url, true, 302);
}
}
/**
* Handle IPN.
*/
private function handleIPN()
{
if (!PayPal_Helper::validate_notification()) {
trigger_error('PayPal: Invalid notification received. ' . json_encode($_POST), E_USER_WARNING);
return;
}
// get objects
$transaction_manager = ShopTransactionsManager::getInstance();
// get data
$handled = false;
$type = escape_chars($_POST['txn_type']);
$amount = escape_chars($_POST['amount']);
// handle different notification types
switch ($type) {
case 'recurring_payment':
case 'recurring_payment_expired':
case 'recurring_payment_failed':
case 'recurring_payment_profile_created':
case 'recurring_payment_profile_cancel':
case 'recurring_payment_skipped':
case 'recurring_payment_suspended':
case 'recurring_payment_suspended_due_to_max_failed_payment':
$profile_id = escape_chars($_REQUEST['recurring_payment_id']);
$transaction = $transaction_manager->getSingleItem($transaction_manager->getFieldNames(), array('token' => $profile_id));
if (is_object($transaction)) {
$handled = $this->handleRecurringIPN($transaction, $type, $amount);
} else {
trigger_error("PayPal: Unable to handle IPN, unknown transaction {$profile_id}.", E_USER_WARNING);
}
break;
}
// record unhandled notifications
if (!$handled) {
trigger_error("PayPal: Unhandled notification '{$type}'.", E_USER_NOTICE);
}
}
/**
* Set API credentials.
*
* @param string $username
* @param string $password
* @param string $signature
*/
public static function setCredentials($username, $password, $signature)
{
self::$api_username = $username;
self::$api_password = $password;
self::$api_signature = $signature;
}
/**
* Complete checkout and charge money.
*/
public function completeCheckout()
{
global $language;
// prepare data for new recurring profile
$shop = shop::getInstance();
$token = escape_chars($_REQUEST['token']);
$payer_id = escape_chars($_REQUEST['payer_id']);
$return_url = fix_chars($_REQUEST['return_url']);
$recurring = isset($_REQUEST['type']) && $_REQUEST['type'] == 'recurring';
$transaction_uid = $_SESSION['transaction']['uid'];
// get buyer information
$fields = array('TOKEN' => $token);
$response = PayPal_Helper::callAPI(PayPal_Helper::METHOD_GetExpressCheckoutDetails, $fields);
// update transaction status and buyer
if ($response['ACK'] == 'Success' || $response['ACK'] == 'SuccessWithWarning') {
$buyer = array('first_name' => $response['FIRSTNAME'], 'last_name' => $response['LASTNAME'], 'email' => $response['EMAIL'], 'uid' => $response['PAYERID']);
$shop->updateBuyerInformation($transaction_uid, $buyer);
} else {
// report error
$error_code = urldecode($response['L_ERRORCODE0']);
$error_long = urldecode($response['L_LONGMESSAGE0']);
trigger_error("PayPal_Express: ({$error_code}) - {$error_long}", E_USER_ERROR);
}
// create recurring profile
if ($recurring) {
$request_id = 0;
$plan_name = $_SESSION['recurring_plan'];
$manager = PayPal_PlansManager::getInstance();
$plan = $manager->getSingleItem($manager->getFieldNames(), array('text_id' => $plan_name));
$current_plan = $shop->getRecurringPlan();
// cancel existing recurring payment if exists
if (!is_null($current_plan)) {
$plans = $this->get_recurring_plans();
$current_group = null;
// get plan data
if (isset($plans[$current_plan->plan_name])) {
$current_group = $plans[$current_plan->plan_name]['group'];
}
// cancel current plan
if (!is_null($current_group) && $current_group == $plan->group_name) {
$shop->cancelTransaction($current_plan->transaction);
}
}
// generate params for description
$plan_params = array('price' => $plan->price, 'period' => $plan->interval_count, 'unit' => $plan->interval, 'setup' => $plan->setup_price, 'trial_period' => $plan->trial_count, 'trial_unit' => $plan->trial);
// charge one time setup fee
if (is_object($plan) && $plan->setup_price > 0) {
$setup_fields = $fields;
$setup_fields["PAYMENTREQUEST_{$request_id}_AMT"] = $plan->setup_price;
$setup_fields["PAYMENTREQUEST_{$request_id}_CURRENCYCODE"] = $shop->getDefaultCurrency();
$setup_fields["PAYMENTREQUEST_{$request_id}_DESC"] = $this->parent->getLanguageConstant('api_setup_fee');
$setup_fields["PAYMENTREQUEST_{$request_id}_INVNUM"] = $_SESSION['transaction']['uid'];
$setup_fields["PAYMENTREQUEST_{$request_id}_PAYMENTACTION"] = 'Sale';
$response = PayPal_Helper::callAPI(PayPal_Helper::METHOD_DoExpressCheckoutPayment, $setup_fields);
}
// create recurring payments profile
$recurring_fields = $fields;
// set starting date of the profile
$start_timestamp = strtotime($plan->start_time);
if ($start_timestamp < time()) {
$start_timestamp = time();
}
$recurring_fields['PROFILESTARTDATE'] = strftime('%Y-%m-%dT%T%z', $start_timestamp);
$recurring_fields['PAYERID'] = $payer_id;
// set description
$recurring_fields['DESC'] = $shop->formatRecurring($plan_params);
// set currency
$recurring_fields['AMT'] = $plan->price;
$recurring_fields['CURRENCYCODE'] = $shop->getDefaultCurrency();
// billing period
$recurring_fields['BILLINGPERIOD'] = $this->units[$plan->interval];
$recurring_fields['BILLINGFREQUENCY'] = $plan->interval_count;
// trial period
if ($plan->trial_count > 0) {
$recurring_fields['TRIALBILLINGPERIOD'] = $this->units[$plan->trial];
$recurring_fields['TRIALBILLINGFREQUENCY'] = $plan->trial_count;
$recurring_fields['TRIALTOTALBILLINGCYCLES'] = 1;
}
// make api call
$response = PayPal_Helper::callAPI(PayPal_Helper::METHOD_CreateRecurringPaymentsProfile, $recurring_fields);
if ($response['ACK'] == 'Success' || $response['ACK'] == 'SuccessWithWarning') {
// update transaction token
$shop->setTransactionToken($transaction_uid, fix_chars($response['PROFILEID']));
// update transaction status
if ($response['PROFILESTATUS'] == 'ActiveProfile') {
$shop->setTransactionStatus($transaction_uid, TransactionStatus::COMPLETED);
}
} else {
// report error
$error_code = urldecode($response['L_ERRORCODE0']);
$error_long = urldecode($response['L_LONGMESSAGE0']);
trigger_error("PayPal_Express: ({$error_code}) - {$error_long}", E_USER_ERROR);
}
// redirect user
header('Location: ' . $return_url, true, 302);
}
}
