protected function _start($log_dir, $log_file, $task)
{
// Tick tock tick...
$this->start = microtime(TRUE) * 10000;
$this->task = $task;
// --------------------------------------------------------------------------
// Set log details
_LOG_FILE('cron/' . $log_dir . '/' . $log_file . '-' . date('Y-m-d') . '.php');
_LOG('Starting job [' . $this->task . ']...');
_LOG();
}
protected function _notify_paypal()
{
// Configure log
_LOG_FILE(app_setting('url', 'shop') . 'notify/paypal/ipn-' . date('Y-m-d') . '.php');
_LOG();
_LOG('- - - - - - - - - - - - - - - - - - -');
_LOG('Waking up IPN responder; handling with PayPal');
// --------------------------------------------------------------------------
// POST data?
// Want to test a previous IPN message?
// Paste the IPN message into the following and uncomment the following lines
// $_message = '';
// $_message = str_replace( '+', '%2B', $_message );
// parse_str( $_message, $_POST );
if (!$this->data['testing'] && !$this->input->post()) {
_LOG('No POST data, going back to sleep...');
_LOG('- - - - - - - - - - - - - - - - - - -');
_LOG();
return;
}
// --------------------------------------------------------------------------
// Are we testing?
if ($this->data['testing']) {
$_ipn = TRUE;
_LOG();
_LOG('**TESTING**');
_LOG('**Simulating data sent from PayPal**');
_LOG();
// Check order exists
$_order = $this->shop_order_model->get_by_ref($this->input->get('ref'));
if (!$_order) {
_LOG('Invalid order reference, aborting.');
_LOG('- - - - - - - - - - - - - - - - - - -');
_LOG();
return;
}
// --------------------------------------------------------------------------
$_paypal = array();
$_paypal['payment_type'] = 'instant';
$_paypal['invoice'] = $_order->ref;
$_paypal['custom'] = $this->encrypt->encode(md5($_order->ref . ':' . $_order->code), APP_PRIVATE_KEY);
$_paypal['txn_id'] = 'TEST:' . random_string('alpha', 6);
$_paypal['txn_type'] = 'cart';
$_paypal['payment_status'] = 'Completed';
$_paypal['pending_reason'] = 'PaymentReview';
$_paypal['mc_fee'] = 0.0;
} else {
_LOG('Validating the IPN call');
$this->load->library('paypal');
$_ipn = $this->paypal->validate_ipn();
$_paypal = $this->input->post();
$_order = $this->shop_order_model->get_by_ref($this->input->post('invoice'));
if (!$_order) {
_LOG('Invalid order ID, aborting. Likely a transaction not initiated by the site.');
_LOG('- - - - - - - - - - - - - - - - - - -');
_LOG();
return;
}
}
// --------------------------------------------------------------------------
// Did the IPN validate?
if ($_ipn) {
_LOG('IPN Verified with PayPal');
_LOG();
// --------------------------------------------------------------------------
// Extra verification step, check the 'custom' variable decodes appropriately
_LOG('Verifying data');
_LOG();
$_verification = $this->encrypt->decode($_paypal['custom'], APP_PRIVATE_KEY);
if ($_verification != md5($_order->ref . ':' . $_order->code)) {
$_data = array('pp_txn_id' => $_paypal['txn_id']);
$this->shop_order_model->fail($_order->id, $_data);
_LOG('Order failed secondary verification, aborting.');
_LOG('- - - - - - - - - - - - - - - - - - -');
_LOG();
// --------------------------------------------------------------------------
// Inform developers
send_developer_mail('An IPN request failed', 'An IPN request was made which failed secondary verification, Order: ' . $_paypal['invoice']);
return;
}
// --------------------------------------------------------------------------
// Only bother to handle certain types
// TODO: handle refunds
_LOG('Checking txn_type is supported');
_LOG();
if ($_paypal['txn_type'] != 'cart') {
_LOG('"' . $_paypal['txn_type'] . '" is not a supported PayPal txn_type, gracefully aborting.');
_LOG('- - - - - - - - - - - - - - - - - - -');
_LOG();
return;
}
// --------------------------------------------------------------------------
// Check if order has already been processed
_LOG('Checking if order has already been processed');
_LOG();
if (ENVIRONMENT == 'production' && $_order->status != 'UNPAID') {
_LOG('Order has already been processed, aborting.');
_LOG('- - - - - - - - - - - - - - - - - - -');
_LOG();
return;
} elseif (ENVIRONMENT != 'production' && $_order->status != 'UNPAID') {
_LOG('Order has already been processed, but not on production so continuing anyway.');
_LOG();
}
// --------------------------------------------------------------------------
// Check the status of the payment
_LOG('Checking the status of the payment');
_LOG();
switch (strtolower($_paypal['payment_status'])) {
case 'completed':
// Do nothing, this transaction is OK
_LOG('Payment status is "completed"; continuing...');
break;
// --------------------------------------------------------------------------
// --------------------------------------------------------------------------
case 'reversed':
// Transaction was cancelled, mark order as FAILED
_LOG('Payment was reversed, marking as failed and aborting');
$_data = array('pp_txn_id' => $_paypal['txn_id']);
$this->shop_order_model->fail($_order->id, $_data);
break;
// --------------------------------------------------------------------------
// --------------------------------------------------------------------------
case 'pending':
// Check the pending_reason, if it's 'paymentreview' then gracefully stop
// processing; PayPal will send a further IPN once the payment is complete
_LOG('Payment status is "pending"; check the reason.');
if (strtolower($_paypal['pending_reason']) == 'paymentreview') {
// The transaction is pending review, gracefully stop proicessing, but don't cancel the order
_LOG('Payment is pending review by PayPal, gracefully aborting just now.');
$this->shop_order_model->pending($_order->id);
return;
} else {
_LOG('Unsupported payment reason "' . $_paypal['pending_reason'] . '", aborting.');
// --------------------------------------------------------------------------
$_data = array('pp_txn_id' => $_paypal['txn_id']);
$this->shop_order_model->fail($_order->id, $_data);
// --------------------------------------------------------------------------
// Inform developers
send_developer_mail('A PayPal payment failed', '<strong>' . $_order->user->first_name . ' ' . $_order->user->last_name . ' (' . $_order->user->email . ')</strong> has just attempted to pay for order ' . $_order->ref . '. The payment failed with status "' . $_paypal['payment_status'] . '" and reason "' . $_paypal['pending_reason'] . '".');
return;
}
// --------------------------------------------------------------------------
return;
break;
// --------------------------------------------------------------------------
// --------------------------------------------------------------------------
default:
// Unknown/invalid payment status
_LOG('Invalid payment status');
$_data = array('pp_txn_id' => $_paypal['txn_id']);
$this->shop_order_model->fail($_order->id, $_data);
// --------------------------------------------------------------------------
// Inform developers
send_developer_mail('A PayPal payment failed', '<strong>' . $_order->user->first_name . ' ' . $_order->user->last_name . ' (' . $_order->user->email . ')</strong> has just attempted to pay for order ' . $_order->ref . '. The payment failed with status "' . $_paypal['payment_status'] . '" and reason "' . $_paypal['pending_reason'] . '".');
return;
break;
}
// --------------------------------------------------------------------------
// All seems good, continue with order processing
_LOG('All seems well, continuing...');
_LOG();
_LOG('Setting txn_id (' . $_paypal['txn_id'] . ') and fees_deducted (' . $_paypal['mc_fee'] . ').');
_LOG();
$_data = array('pp_txn_id' => $_paypal['txn_id'], 'fees_deducted' => $_paypal['mc_fee']);
$this->shop_order_model->paid($_order->id, $_data);
// --------------------------------------------------------------------------
// PROCESSSSSS...
$this->shop_order_model->process($_order);
_LOG();
// --------------------------------------------------------------------------
// Send a receipt to the customer
_LOG('Sending receipt to customer: ' . $_order->user->email);
$this->shop_order_model->send_receipt($_order);
_LOG();
// --------------------------------------------------------------------------
// Send a notification to the store owner(s)
_LOG('Sending notification to store owner(s): ' . notification('notify_order', 'shop'));
$this->shop_order_model->send_order_notification($_order);
// --------------------------------------------------------------------------
if ($_order->voucher) {
// Redeem the voucher, if it's there
_LOG('Redeeming voucher: ' . $_order->voucher->code . ' - ' . $_order->voucher->label);
$this->shop_voucher_model->redeem($_order->voucher->id, $_order);
}
// --------------------------------------------------------------------------
_LOG();
// --------------------------------------------------------------------------
_LOG('All done here, going back to sleep...');
_LOG('- - - - - - - - - - - - - - - - - - -');
_LOG();
if ($this->data['testing']) {
echo anchor(app_setting('url', 'shop') . 'checkout/processing?ref=' . $_order->ref, 'Continue to Processing Page');
}
} else {
_LOG('PayPal did not verify this IPN call, aborting.');
_LOG('- - - - - - - - - - - - - - - - - - -');
_LOG();
}
}
