public function ipn_callback()
{
$this->log(' [Info] Entered ipn_callback()...');
// Retrieve the Invoice ID and Network URL from the supposed IPN data
$post = file_get_contents("php://input");
if (true === empty($post)) {
$this->log(' [Error] No post data sent to IPN handler!');
error_log('[Error] BitPay plugin received empty POST data for an IPN message.');
wp_die('No post data');
} else {
$this->log(' [Info] The post data sent to IPN handler is present...');
}
$json = json_decode($post, true);
if (true === empty($json)) {
$this->log(' [Error] Invalid JSON payload sent to IPN handler: ' . $post);
error_log('[Error] BitPay plugin received an invalid JSON payload sent to IPN handler: ' . $post);
wp_die('Invalid JSON');
} else {
$this->log(' [Info] The post data was decoded into JSON...');
}
if (false === array_key_exists('id', $json)) {
$this->log(' [Error] No invoice ID present in JSON payload: ' . var_export($json, true));
error_log('[Error] BitPay plugin did not receive an invoice ID present in JSON payload: ' . var_export($json, true));
wp_die('No Invoice ID');
} else {
$this->log(' [Info] Invoice ID present in JSON payload...');
}
if (false === array_key_exists('url', $json)) {
$this->log(' [Error] No invoice URL present in JSON payload: ' . var_export($json, true));
error_log('[Error] BitPay plugin did not receive an invoice URL present in JSON payload: ' . var_export($json, true));
wp_die('No Invoice URL');
} else {
$this->log(' [Info] Invoice URL present in JSON payload...');
}
// Get a BitPay Client to prepare for invoice fetching
$client = new \Bitpay\Client\Client();
if (false === isset($client) && true === empty($client)) {
$this->log(' [Error] The Bitpay payment plugin was called to handle an IPN but could not instantiate a client object.');
throw new \Exception('The Bitpay payment plugin was called to handle an IPN but could not instantiate a client object. Cannot continue!');
} else {
$this->log(' [Info] Created new Client object in IPN handler...');
}
if (false === strpos($json['url'], 'test')) {
$network = new \Bitpay\Network\Livenet();
$this->log(' [Info] Set network to Livenet.');
} else {
$network = new \Bitpay\Network\Testnet();
$this->log(' [Info] Set network to Testnet.');
}
$this->log(' [Info] Checking IPN response is valid via ' . $network->getName() . '...');
$client->setNetwork($network);
$curlAdapter = new \Bitpay\Client\Adapter\CurlAdapter();
if (false === isset($curlAdapter) && true === empty($curlAdapter)) {
$this->log(' [Error] The Bitpay payment plugin was called to handle an IPN but could not instantiate a CurlAdapter object.');
throw new \Exception('The Bitpay payment plugin was called to handle an IPN but could not instantiate a CurlAdapter object. Cannot continue!');
} else {
$this->log(' [Info] Created new CurlAdapter object in IPN handler...');
}
// Setting the Adapter param to a new BitPay CurlAdapter object
$client->setAdapter($curlAdapter);
if (false === empty($this->api_key)) {
$client->setPrivateKey($this->api_key);
} else {
$this->log(' [Error] The Bitpay payment plugin was called to handle an IPN but could not set client->setPrivateKey to this->api_key. The empty() check failed!');
throw new \Exception('The Bitpay payment plugin was called to handle an IPN but could not set client->setPrivateKey to this->api_key. The empty() check failed!');
}
if (false === empty($this->api_pub)) {
$client->setPublicKey($this->api_pub);
} else {
$this->log(' [Error] The Bitpay payment plugin was called to handle an IPN but could not set client->setPublicKey to this->api_pub. The empty() check failed!');
throw new \Exception('The Bitpay payment plugin was called to handle an IPN but could not set client->setPublicKey to this->api_pub. The empty() check failed!');
}
if (false === empty($this->api_token)) {
$client->setToken($this->api_token);
} else {
$this->log(' [Error] The Bitpay payment plugin was called to handle an IPN but could not set client->setToken to this->api_token. The empty() check failed!');
throw new \Exception('The Bitpay payment plugin was called to handle an IPN but could not set client->setToken to this->api_token. The empty() check failed!');
}
$this->log(' [Info] Key and token empty checks passed. Parameters in client set accordingly...');
// Fetch the invoice from BitPay's server to update the order
try {
$invoice = $client->getInvoice($json['id']);
if (true === isset($invoice) && false === empty($invoice)) {
$this->log(' [Info] The IPN check appears to be valid.');
} else {
$this->log(' [Error] The IPN check did not pass!');
wp_die('Invalid IPN');
}
} catch (\Exception $e) {
$error_string = 'IPN Check: Can\'t find invoice ' . $json['id'];
$this->log(" [Error] {$error_string}");
$this->log(" [Error] " . $e->getMessage());
wp_die($e->getMessage());
}
$order_id = $invoice->getOrderId();
if (false === isset($order_id) && true === empty($order_id)) {
$this->log(' [Error] The Bitpay payment plugin was called to process an IPN message but could not obtain the order ID from the invoice.');
throw new \Exception('The Bitpay payment plugin was called to process an IPN message but could not obtain the order ID from the invoice. Cannot continue!');
} else {
$this->log(' [Info] Order ID is: ' . $order_id);
}
// Creating a new WooCommerce Order object with $order_id
$order = wc_get_order($order_id);
if (false === isset($order) && true === empty($order)) {
$this->log(' [Error] The Bitpay payment plugin was called to process an IPN message but could not retrieve the order details for order_id ' . $order_id);
throw new \Exception('The Bitpay payment plugin was called to process an IPN message but could not retrieve the order details for order_id ' . $order_id . '. Cannot continue!');
} else {
$this->log(' [Info] Order details retrieved successfully...');
}
$current_status = $order->get_status();
if (false === isset($current_status) && true === empty($current_status)) {
$this->log(' [Error] The Bitpay payment plugin was called to process an IPN message but could not obtain the current status from the order.');
throw new \Exception('The Bitpay payment plugin was called to process an IPN message but could not obtain the current status from the order. Cannot continue!');
} else {
$this->log(' [Info] The current order status for this order is ' . $current_status);
}
$order_states = $this->get_option('order_states');
$new_order_status = $order_states['new'];
$paid_status = $order_states['paid'];
$confirmed_status = $order_states['confirmed'];
$complete_status = $order_states['complete'];
$invalid_status = $order_states['invalid'];
$checkStatus = $invoice->getStatus();
if (false === isset($checkStatus) && true === empty($checkStatus)) {
$this->log(' [Error] The Bitpay payment plugin was called to process an IPN message but could not obtain the current status from the invoice.');
throw new \Exception('The Bitpay payment plugin was called to process an IPN message but could not obtain the current status from the invoice. Cannot continue!');
} else {
$this->log(' [Info] The current order status for this invoice is ' . $checkStatus);
}
// Based on the payment status parameter for this
// IPN, we will update the current order status.
switch ($checkStatus) {
// The "paid" IPN message is received almost
// immediately after the BitPay invoice is paid.
case 'paid':
$this->log(' [Info] IPN response is a "paid" message.');
if ($current_status == $complete_status || 'wc_' . $current_status == $complete_status || $current_status == 'completed') {
$error_string = 'Paid IPN, but order has status: ' . $current_status;
$this->log(" [Warning] {$error_string}");
} else {
$this->log(' [Info] This order has not been updated yet so setting new status...');
$order->update_status($paid_status);
$order->add_order_note(__('BitPay invoice paid. Awaiting network confirmation and payment completed status.', 'bitpay'));
}
break;
// The "confirmed" status is sent when the payment is
// confirmed based on your transaction speed setting.
// The "confirmed" status is sent when the payment is
// confirmed based on your transaction speed setting.
case 'confirmed':
$this->log(' [Info] IPN response is a "confirmed" message.');
if ($current_status == $complete_status || 'wc_' . $current_status == $complete_status || $current_status == 'completed') {
$error_string = 'Confirmed IPN, but order has status: ' . $current_status;
$this->log(" [Warning] {$error_string}");
} else {
$this->log(' [Info] This order has not been updated yet so setting confirmed status...');
$order->update_status($confirmed_status);
$order->add_order_note(__('BitPay invoice confirmed. Awaiting payment completed status.', 'bitpay'));
}
break;
// The complete status is when the Bitcoin network
// obtains 6 confirmations for this transaction.
// The complete status is when the Bitcoin network
// obtains 6 confirmations for this transaction.
case 'complete':
$this->log(' [Info] IPN response is a "complete" message.');
if ($current_status == $complete_status || 'wc_' . $current_status == $complete_status || $current_status == 'completed') {
$error_string = 'Complete IPN, but order has status: ' . $current_status;
$this->log(" [Warning] {$error_string}");
} else {
$this->log(' [Info] This order has not been updated yet so setting complete status...');
$order->payment_complete();
$order->update_status($complete_status);
$order->add_order_note(__('BitPay invoice payment completed. Payment credited to your merchant account.', 'bitpay'));
}
break;
// This order is invalid for some reason.
// Either it's a double spend or some other
// problem occurred.
// This order is invalid for some reason.
// Either it's a double spend or some other
// problem occurred.
case 'invalid':
$this->log(' [Info] IPN response is a "invalid" message.');
if ($current_status == $complete_status || 'wc_' . $current_status == $complete_status || $current_status == 'completed') {
$error_string = 'Paid IPN, but order has status: ' . $current_status;
$this->log(" [Warning] {$error_string}");
} else {
$this->log(' [Info] This order has a problem so setting "invalid" status...');
$order->update_status($invalid_status, __('Bitcoin payment is invalid for this order! The payment was not confirmed by the network within 1 hour. Do not ship the product for this order!', 'bitpay'));
}
break;
// There was an unknown message received.
// There was an unknown message received.
default:
$this->log(' [Info] IPN response is an unknown message type. See error message below:');
$error_string = 'Unhandled invoice status: ' . $invoice->getStatus();
$this->log(" [Warning] {$error_string}");
}
$this->log(' [Info] Leaving ipn_callback()...');
}
function bitpay_callback()
{
global $wpdb;
try {
if (isset($_GET['bitpay_callback'])) {
$post = file_get_contents("php://input");
if (true === empty($post)) {
return array('error' => 'No post data');
}
$json = json_decode($post, true);
if (true === is_string($json)) {
return array('error' => $json);
}
if (false === array_key_exists('posData', $json)) {
return array('error' => 'no posData');
}
if (false === array_key_exists('id', $json)) {
return 'Cannot find invoice ID';
}
// Don't trust parameters from the scary internet.
// Use invoice ID from the $json in getInvoice($invoice_id) and get status from that.
$client = new \Bitpay\Client\Client();
$adapter = new \Bitpay\Client\Adapter\CurlAdapter();
$network = strpos($json['url'], 'test') === false ? new \Bitpay\Network\Livenet() : new \Bitpay\Network\Testnet();
$client->setAdapter($adapter);
$client->setNetwork($network);
// Checking invoice is valid...
$response = $client->getInvoice($json['id']);
$sessionid = $response->getPosData();
// get buyer email
$sql = "SELECT * FROM `" . WPSC_TABLE_PURCHASE_LOGS . "` WHERE `sessionid`=" . $sessionid;
$purchase_log = $wpdb->get_results($sql, ARRAY_A);
$email_form_field = $wpdb->get_var("SELECT `id` FROM `" . WPSC_TABLE_CHECKOUT_FORMS . "` WHERE `type` IN ('email') AND `active` = '1' ORDER BY `checkout_order` ASC LIMIT 1");
$email = $wpdb->get_var($wpdb->prepare("SELECT `value` FROM `" . WPSC_TABLE_SUBMITTED_FORM_DATA . "` WHERE `log_id` = %d AND `form_id` = %d LIMIT 1", $purchase_log[0]['id'], $email_form_field));
// get cart contents
$sql = "SELECT * FROM `" . WPSC_TABLE_CART_CONTENTS . "` WHERE `purchaseid`=" . $purchase_log[0]['id'];
$cart_contents = $wpdb->get_results($sql, ARRAY_A);
// get currency symbol
$currency_id = get_option('currency_type');
$sql = "SELECT * FROM `" . WPSC_TABLE_CURRENCY_LIST . "` WHERE `id`=" . $currency_id;
$currency_data = $wpdb->get_results($sql, ARRAY_A);
$currency_symbol = $currency_data[0]['symbol'];
// list products and individual prices in the email
$message_product = "\r\n\r\nTransaction Details:\r\n\r\n";
$pnp = 0.0;
$subtotal = 0.0;
foreach ($cart_contents as $product) {
// shipping for each item
$pnp += $product['pnp'];
$message_product .= 'x' . $product['quantity'] . ' ' . $product['name'] . ' - ' . $currency_symbol . $product['price'] * $product['quantity'] . "\r\n";
$subtotal += $product['price'] * $product['quantity'];
}
//list subtotal
$subtotal = number_format($subtotal, 2, '.', ',');
$message_product .= "\r\n" . 'Subtotal: ' . $currency_symbol . $subtotal . "\r\n";
//list total taxes and total shipping costs in the email
$message_product .= 'Taxes: ' . $currency_symbol . $purchase_log[0]['wpec_taxes_total'] . "\r\n";
$message_product .= 'Shipping: ' . $currency_symbol . ($purchase_log[0]['base_shipping'] + $pnp) . "\r\n\r\n";
//display total price in the email
$message_product .= 'Total Price: ' . $currency_symbol . $purchase_log[0]['totalprice'];
switch ($response->getStatus()) {
//For low and medium transaction speeds, the order status is set to "Order Received" . The customer receives
//an initial email stating that the transaction has been paid.
case 'paid':
if (true === is_numeric($sessionid)) {
$sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `processed`= '2' WHERE `sessionid`=" . $sessionid;
$wpdb->query($sql);
$message = 'Thank you! Your payment has been received, but the transaction has not been confirmed on the bitcoin network. You will receive another email when the transaction has been confirmed.';
$message .= $message_product;
$sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `notes`= 'The payment has been received, but the transaction has not been confirmed on the bitcoin network. This will be updated when the transaction has been confirmed.' WHERE `sessionid`=" . $sessionid;
$wpdb->query($sql);
if (wp_mail($email, 'Payment Received', $message)) {
$mail_sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `email_sent`= '1' WHERE `sessionid`=" . $sessionid;
$wpdb->query($mail_sql);
}
transaction_results($sessionid, false);
//false because this is just for email notification
}
break;
//For low and medium transaction speeds, the order status will not change. For high transaction speed, the order
//status is set to "Order Received" here. For all speeds, an email will be sent stating that the transaction has
//been confirmed.
//For low and medium transaction speeds, the order status will not change. For high transaction speed, the order
//status is set to "Order Received" here. For all speeds, an email will be sent stating that the transaction has
//been confirmed.
case 'confirmed':
if (true === is_numeric($sessionid)) {
$sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `processed`= '2' WHERE `sessionid`=" . $sessionid;
$wpdb->query($sql);
$mail_sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `email_sent`= '1' WHERE `sessionid`=" . $sessionid;
//display initial "thank you" if transaction speed is high, as the 'paid' status is skipped on high speed
if (get_option('bitpay_transaction_speed') == 'high') {
$message = 'Thank you! Your payment has been received, and the transaction has been confirmed on the bitcoin network. You will receive another email when the transaction is complete.';
$message .= $message_product;
$sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `notes`= 'The payment has been received, and the transaction has been confirmed on the bitcoin network. This will be updated when the transaction has been completed.' WHERE `sessionid`=" . $sessionid;
$wpdb->query($sql);
if (wp_mail($email, 'Payment Received', $message)) {
$wpdb->query($mail_sql);
}
} else {
$message = 'Your transaction has now been confirmed on the bitcoin network. You will receive another email when the transaction is complete.';
$sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `notes`= 'The payment has been received, and the transaction has been confirmed on the bitcoin network. This will be updated when the transaction has been completed.' WHERE `sessionid`=" . $sessionid;
$wpdb->query($sql);
if (wp_mail($email, 'Transaction Confirmed', $message)) {
$wpdb->query($mail_sql);
}
}
//false because this is just for email notification
transaction_results($sessionid, false);
}
break;
//The purchase receipt email is sent upon the invoice status changing to "complete", and the order
//status is changed to Accepted Payment
//The purchase receipt email is sent upon the invoice status changing to "complete", and the order
//status is changed to Accepted Payment
case 'complete':
if (true === is_numeric($sessionid)) {
$sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `processed`= '3' WHERE `sessionid`=" . $sessionid;
$wpdb->query($sql);
$message = 'Your transaction is now complete! Thank you for using BitPay!';
$sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `notes`= 'The transaction is now complete.' WHERE `sessionid`=" . $sessionid;
$wpdb->query($sql);
if (wp_mail($email, 'Transaction Complete', $message)) {
$mail_sql = "UPDATE `" . WPSC_TABLE_PURCHASE_LOGS . "` SET `email_sent`= '1' WHERE `sessionid`=" . $sessionid;
$wpdb->query($mail_sql);
}
//false because this is just for email notification
transaction_results($sessionid, false);
}
break;
// END OF switch ($response->getStatus())
}
}
} catch (\Exception $e) {
debuglog('[Error] In Bitpay plugin, form_bitpay() function on line ' . $e->getLine() . ', with the error "' . $e->getMessage() . '".');
throw $e;
}
}
