public function handle_stripe_ipn()
{
SwpmLog::log_simple_debug("Stripe Buy Now IPN received. Processing request...", true);
//SwpmLog::log_simple_debug(print_r($_REQUEST, true), true);//Useful for debugging purpose
//Include the Stripe library.
include SIMPLE_WP_MEMBERSHIP_PATH . 'lib/stripe-gateway/init.php';
//Read and sanitize the request parameters.
$button_id = sanitize_text_field($_REQUEST['item_number']);
$button_id = absint($button_id);
$button_title = sanitize_text_field($_REQUEST['item_name']);
$payment_amount = sanitize_text_field($_REQUEST['item_price']);
$price_in_cents = $payment_amount * 100;
//The amount (in cents). This value is used in Stripe API.
$currency_code = sanitize_text_field($_REQUEST['currency_code']);
$stripe_token = sanitize_text_field($_POST['stripeToken']);
$stripe_token_type = sanitize_text_field($_POST['stripeTokenType']);
$stripe_email = sanitize_email($_POST['stripeEmail']);
//Retrieve the CPT for this button
$button_cpt = get_post($button_id);
if (!$button_cpt) {
//Fatal error. Could not find this payment button post object.
SwpmLog::log_simple_debug("Fatal Error! Failed to retrieve the payment button post object for the given button ID: " . $button_id, false);
wp_die("Fatal Error! Payment button (ID: " . $button_id . ") does not exist. This request will fail.");
}
$membership_level_id = get_post_meta($button_id, 'membership_level_id', true);
//Validate and verify some of the main values.
$true_payment_amount = get_post_meta($button_id, 'payment_amount', true);
if ($payment_amount != $true_payment_amount) {
//Fatal error. Payment amount may have been tampered with.
$error_msg = 'Fatal Error! Received payment amount (' . $payment_amount . ') does not match with the original amount (' . $true_payment_amount . ')';
SwpmLog::log_simple_debug($error_msg, false);
wp_die($error_msg);
}
$true_currency_code = get_post_meta($button_id, 'payment_currency', true);
if ($currency_code != $true_currency_code) {
//Fatal error. Currency code may have been tampered with.
$error_msg = 'Fatal Error! Received currency code (' . $currency_code . ') does not match with the original code (' . $true_currency_code . ')';
SwpmLog::log_simple_debug($error_msg, false);
wp_die($error_msg);
}
//Validation passed. Go ahead with the charge.
//Sandbox and other settings
$settings = SwpmSettings::get_instance();
$sandbox_enabled = $settings->get_value('enable-sandbox-testing');
if ($sandbox_enabled) {
SwpmLog::log_simple_debug("Sandbox payment mode is enabled. Using test API key details.", true);
$secret_key = get_post_meta($button_id, 'stripe_test_secret_key', true);
//Use sandbox API key
} else {
$secret_key = get_post_meta($button_id, 'stripe_live_secret_key', true);
//Use live API key
}
//Set secret API key in the Stripe library
\Stripe\Stripe::setApiKey($secret_key);
// Get the credit card details submitted by the form
$token = $stripe_token;
// Create the charge on Stripe's servers - this will charge the user's card
try {
$charge = \Stripe\Charge::create(array("amount" => $price_in_cents, "currency" => strtolower($currency_code), "source" => $token, "description" => $button_title));
} catch (\Stripe\Error\Card $e) {
// The card has been declined
SwpmLog::log_simple_debug("Stripe Charge Error! The card has been declined. " . $e->getMessage(), false);
$body = $e->getJsonBody();
$error = $body['error'];
$error_string = print_r($error, true);
SwpmLog::log_simple_debug("Error details: " . $error_string, false);
wp_die("Stripe Charge Error! Card charge has been declined. " . $e->getMessage() . $error_string);
}
//Everything went ahead smoothly with the charge.
SwpmLog::log_simple_debug("Stripe Buy Now charge successful.", true);
//Grab the charge ID and set it as the transaction ID.
$txn_id = $charge->id;
//$charge->balance_transaction;
//The charge ID can be used to retrieve the transaction details using hte following call.
//\Stripe\Charge::retrieve($charge->id);
$custom = sanitize_text_field($_REQUEST['custom']);
$custom_var = SwpmTransactions::parse_custom_var($custom);
$swpm_id = isset($custom_var['swpm_id']) ? $custom_var['swpm_id'] : '';
//Create the $ipn_data array.
$ipn_data = array();
$ipn_data['mc_gross'] = $payment_amount;
$ipn_data['first_name'] = '';
$ipn_data['last_name'] = '';
$ipn_data['payer_email'] = $stripe_email;
$ipn_data['membership_level'] = $membership_level_id;
$ipn_data['txn_id'] = $txn_id;
$ipn_data['subscr_id'] = $txn_id;
$ipn_data['swpm_id'] = $swpm_id;
$ipn_data['ip'] = $custom_var['user_ip'];
$ipn_data['custom'] = $custom;
$ipn_data['gateway'] = 'stripe';
$ipn_data['status'] = 'completed';
$ipn_data['address_street'] = '';
$ipn_data['address_city'] = '';
$ipn_data['address_state'] = '';
$ipn_data['address_zipcode'] = '';
$ipn_data['country'] = '';
//Handle the membership signup related tasks.
swpm_handle_subsc_signup_stand_alone($ipn_data, $membership_level_id, $txn_id, $swpm_id);
//Save the transaction record
SwpmTransactions::save_txn_record($ipn_data);
SwpmLog::log_simple_debug('Transaction data saved.', true);
//Trigger the stripe IPN processed action hook (so other plugins can can listen for this event).
do_action('swpm_stripe_ipn_processed', $ipn_data);
do_action('swpm_payment_ipn_processed', $ipn_data);
//Redirect the user to the return URL (or to the homepage if a return URL is not specified for this payment button).
$return_url = get_post_meta($button_id, 'return_url', true);
if (empty($return_url)) {
$return_url = SIMPLE_WP_MEMBERSHIP_SITE_HOME_URL;
}
SwpmLog::log_simple_debug("Redirecting customer to: " . $return_url, true);
SwpmLog::log_simple_debug("End of Stripe Buy Now IPN processing.", true, true);
SwpmMiscUtils::redirect_to_url($return_url);
}
function swpm_validate_and_create_membership()
{
// Check Product Name , Price , Currency , Receivers email ,
$error_msg = "";
// Read the IPN and validate
$gross_total = $this->ipn_data['mc_gross'];
$transaction_type = $this->ipn_data['txn_type'];
$txn_id = $this->ipn_data['txn_id'];
$payment_status = $this->ipn_data['payment_status'];
//Check payment status
if (!empty($payment_status)) {
if ($payment_status == "Denied") {
$this->debug_log("Payment status for this transaction is DENIED. You denied the transaction... most likely a cancellation of an eCheque. Nothing to do here.", false);
return false;
}
if ($payment_status == "Canceled_Reversal") {
$this->debug_log("This is a dispute closed notification in your favour. The plugin will not do anyting.", false);
return true;
}
if ($payment_status != "Completed" && $payment_status != "Processed" && $payment_status != "Refunded" && $payment_status != "Reversed") {
$error_msg .= 'Funds have not been cleared yet. Transaction will be processed when the funds clear!';
$this->debug_log($error_msg, false);
return false;
}
}
//Check txn type
if ($transaction_type == "new_case") {
$this->debug_log('This is a dispute case. Nothing to do here.', true);
return true;
}
$custom = $this->ipn_data['custom'];
$delimiter = "&";
$customvariables = array();
$namevaluecombos = explode($delimiter, $custom);
foreach ($namevaluecombos as $keyval_unparsed) {
$equalsignposition = strpos($keyval_unparsed, '=');
if ($equalsignposition === false) {
$customvariables[$keyval_unparsed] = '';
continue;
}
$key = substr($keyval_unparsed, 0, $equalsignposition);
$value = substr($keyval_unparsed, $equalsignposition + 1);
$customvariables[$key] = $value;
}
//Handle refunds
if ($gross_total < 0) {
// This is a refund or reversal
$this->debug_log('This is a refund notification. Refund amount: ' . $gross_total, true);
swpm_handle_subsc_cancel_stand_alone($this->ipn_data, true);
return true;
}
if (isset($this->ipn_data['reason_code']) && $this->ipn_data['reason_code'] == 'refund') {
$this->debug_log('This is a refund notification. Refund amount: ' . $gross_total, true);
swpm_handle_subsc_cancel_stand_alone($this->ipn_data, true);
return true;
}
if ($transaction_type == "subscr_signup") {
$this->debug_log('Subscription signup IPN received... nothing to do here(handled by the subscription IPN handler)', true);
// Code to handle the signup IPN for subscription
$subsc_ref = $customvariables['subsc_ref'];
if (!empty($subsc_ref)) {
$this->debug_log('swpm integration is being used... creating member account...', true);
$swpm_id = $customvariables['swpm_id'];
swpm_handle_subsc_signup_stand_alone($this->ipn_data, $subsc_ref, $this->ipn_data['subscr_id'], $swpm_id);
//Handle customized subscription signup
}
return true;
} else {
if ($transaction_type == "subscr_cancel" || $transaction_type == "subscr_eot" || $transaction_type == "subscr_failed") {
// Code to handle the IPN for subscription cancellation
swpm_handle_subsc_cancel_stand_alone($this->ipn_data);
$this->debug_log('Subscription cancellation IPN received... nothing to do here(handled by the subscription IPN handler)', true);
return true;
} else {
$cart_items = array();
$this->debug_log('Transaction Type: Buy Now/Subscribe', true);
$item_number = $this->ipn_data['item_number'];
$item_name = $this->ipn_data['item_name'];
$quantity = $this->ipn_data['quantity'];
$mc_gross = $this->ipn_data['mc_gross'];
$mc_currency = $this->ipn_data['mc_currency'];
$current_item = array('item_number' => $item_number, 'item_name' => $item_name, 'quantity' => $quantity, 'mc_gross' => $mc_gross, 'mc_currency' => $mc_currency);
array_push($cart_items, $current_item);
}
}
$counter = 0;
foreach ($cart_items as $current_cart_item) {
$cart_item_data_num = $current_cart_item['item_number'];
$cart_item_data_name = trim($current_cart_item['item_name']);
$cart_item_data_quantity = $current_cart_item['quantity'];
$cart_item_data_total = $current_cart_item['mc_gross'];
$cart_item_data_currency = $current_cart_item['mc_currency'];
if (empty($cart_item_data_quantity)) {
$cart_item_data_quantity = 1;
}
$this->debug_log('Item Number: ' . $cart_item_data_num, true);
$this->debug_log('Item Name: ' . $cart_item_data_name, true);
$this->debug_log('Item Quantity: ' . $cart_item_data_quantity, true);
$this->debug_log('Item Total: ' . $cart_item_data_total, true);
$this->debug_log('Item Currency: ' . $cart_item_data_currency, true);
//Get the button id
$button_id = $cart_item_data_num;
//Button id is the item number.
//*** Handle Membership Payment ***
//--------------------------------------------------------------------------------------
// ========= Need to find the (level ID) in the custom variable ============
$subsc_ref = $customvariables['subsc_ref'];
//Membership level ID
$this->debug_log('Membership payment paid for membership level ID: ' . $subsc_ref, true);
if (!empty($subsc_ref)) {
$swpm_id = "";
if (isset($customvariables['swpm_id'])) {
$swpm_id = $customvariables['swpm_id'];
}
if ($transaction_type == "web_accept") {
$this->debug_log('swpm integration is being used... creating member account...', true);
swpm_handle_subsc_signup_stand_alone($this->ipn_data, $subsc_ref, $this->ipn_data['txn_id'], $swpm_id);
} else {
if ($transaction_type == "subscr_payment") {
$this->debug_log('swpm subscr_payment type transaction. Checking if the member profile needed to be updated', true);
swpm_update_member_subscription_start_date_if_applicable($this->ipn_data);
}
}
} else {
$this->debug_log('Membership level ID is missing in the payment notification! Cannot process this notification.', false);
}
//== End of Membership payment handling ==
$counter++;
}
/*** Do Post payment operation and cleanup ***/
//Save the transaction data
$this->debug_log('Saving transaction data to the database table.', true);
$this->ipn_data['gateway'] = 'paypal';
$this->ipn_data['status'] = $this->ipn_data['payment_status'];
SwpmTransactions::save_txn_record($this->ipn_data, $cart_items);
$this->debug_log('Transaction data saved.', true);
//Trigger the PayPal IPN processed action hook (so other plugins can can listen for this event).
do_action('swpm_paypal_ipn_processed', $this->ipn_data);
do_action('swpm_payment_ipn_processed', $this->ipn_data);
return true;
}
