function Add_Edit_Payment($args)
{
global $wpdb, $ewd_feup_payments_table_name;
extract(shortcode_atts(array('action' => $_POST['action'], 'Payment_ID' => stripslashes_deep($_POST['Payment_ID']), 'User_ID' => stripslashes_deep($_POST['User_ID']), 'Username' => stripslashes_deep($_POST['Username']), 'Payer_ID' => stripslashes_deep($_POST['Payer_ID']), 'PayPal_Receipt_Number' => stripslashes_deep($_POST['PayPal_Receipt_Number']), 'Payment_Date' => stripslashes_deep($_POST['Payment_Date']), 'Next_Payment_Date' => stripslashes_deep($_POST['Next_Payment_Date']), 'Payment_Amount' => stripslashes_deep($_POST['Payment_Amount']), 'Discount_Code_Used' => stripslashes_deep($_POST['Discount_Code_Used'])), $args));
if (!isset($error)) {
/* Pass the data to the appropriate function in Update_Admin_Databases.php to create the product */
if ($action == "Add_Payment") {
$user_update = Add_EWD_FEUP_Payment($User_ID, $Username, $Payer_ID, $PayPal_Receipt_Number, $Payment_Date, $Next_Payment_Date, $Payment_Amount, $Discount_Code_Used);
} else {
$user_update = Edit_EWD_FEUP_Payment($Payment_ID, $User_ID, $Username, $Payer_ID, $PayPal_Receipt_Number, $Payment_Date, $Next_Payment_Date, $Payment_Amount, $Discount_Code_Used);
}
$user_update = array("Message_Type" => "Update", "Message" => $user_update);
return $user_update;
} else {
$output_error = array("Message_Type" => "Error", "Message" => $error);
return $output_error;
}
}
function EWD_FEUP_IPN()
{
global $wpdb;
global $ewd_feup_payments_table_name;
global $ewd_feup_user_table_name;
$Payment_Frequency = get_option("EWD_FEUP_Payment_Frequency");
$Payment_Types = get_option("EWD_FEUP_Payment_Types");
$Membership_Cost = get_option("EWD_FEUP_Membership_Cost");
$Levels_Payment_Array = get_option("EWD_FEUP_Levels_Payment_Array");
$Discount_Codes_Array = get_option("EWD_FEUP_Discount_Codes_Array");
// CONFIG: Enable debug mode. This means we'll log requests into 'ipn.log' in the same directory.
// Especially useful if you encounter network errors or other intermittent problems with IPN (validation).
// Set this to 0 once you go live or don't require logging.
define("DEBUG", 0);
// Set to 0 once you're ready to go live
define("USE_SANDBOX", 0);
define("LOG_FILE", "./ipn.log");
// Read POST data
// reading posted data directly from $_POST causes serialization
// issues with array data in POST. Reading raw POST data from input stream instead.
$raw_post_data = file_get_contents('php://input');
$raw_post_array = explode('&', $raw_post_data);
$myPost = array();
foreach ($raw_post_array as $keyval) {
$keyval = explode('=', $keyval);
if (count($keyval) == 2) {
$myPost[$keyval[0]] = urldecode($keyval[1]);
}
}
// read the post from PayPal system and add 'cmd'
$req = 'cmd=_notify-validate';
if (function_exists('get_magic_quotes_gpc')) {
$get_magic_quotes_exists = true;
}
foreach ($myPost as $key => $value) {
if ($get_magic_quotes_exists == true && get_magic_quotes_gpc() == 1) {
$value = urlencode(stripslashes($value));
} else {
$value = urlencode($value);
}
$req .= "&{$key}={$value}";
}
// Post IPN data back to PayPal to validate the IPN data is genuine
// Without this step anyone can fake IPN data
if (USE_SANDBOX == true) {
$paypal_url = "https://www.sandbox.paypal.com/cgi-bin/webscr";
} else {
$paypal_url = "https://www.paypal.com/cgi-bin/webscr";
}
$ch = curl_init($paypal_url);
if ($ch == FALSE) {
return FALSE;
}
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
if (DEBUG == true) {
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLINFO_HEADER_OUT, 1);
}
// CONFIG: Optional proxy configuration
//curl_setopt($ch, CURLOPT_PROXY, $proxy);
//curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
// Set TCP timeout to 30 seconds
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));
// CONFIG: Please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set the directory path
// of the certificate as shown below. Ensure the file is readable by the webserver.
// This is mandatory for some environments.
//$cert = __DIR__ . "./cacert.pem";
//curl_setopt($ch, CURLOPT_CAINFO, $cert);
$res = curl_exec($ch);
if (curl_errno($ch) != 0) {
if (DEBUG == true) {
error_log(date('[Y-m-d H:i e] ') . "Can't connect to PayPal to validate IPN message: " . curl_error($ch) . PHP_EOL, 3, LOG_FILE);
}
curl_close($ch);
exit;
} else {
// Log the entire HTTP response if debug is switched on.
if (DEBUG == true) {
error_log(date('[Y-m-d H:i e] ') . "HTTP request of validation request:" . curl_getinfo($ch, CURLINFO_HEADER_OUT) . " for IPN payload: {$req}" . PHP_EOL, 3, LOG_FILE);
error_log(date('[Y-m-d H:i e] ') . "HTTP response of validation request: {$res}" . PHP_EOL, 3, LOG_FILE);
}
curl_close($ch);
}
// Inspect IPN validation result and act accordingly
// Split response headers and payload, a better way for strcmp
$tokens = explode("\r\n\r\n", trim($res));
$res = trim(end($tokens));
if (strcmp($res, "VERIFIED") == 0) {
$Email = $_POST['payer_email'];
$PayPal_Receipt_Number = $_POST['txn_id'];
$Payer_ID = $_POST['payer_id'];
$Payment_Time = strtotime($_POST['payment_date']);
$Payment_Date = date("Y-m-d H:i:s", $Payment_Time);
$Payment_Amount = $_POST['mc_gross'];
parse_str($_POST['custom'], $Custom_Vars);
$User_ID = $Custom_Vars['User_ID'];
$Username = $wpdb->get_var($wpdb->prepare("SELECT Username FROM {$ewd_feup_user_table_name} WHERE User_ID=%d", $User_ID));
$Discount_Code_Used = $Custom_Vars['discount_code'];
//if ($_POST['mc_gross'] == $_POST['payment_gross']) {
if ($Payment_Frequency == "One_Time") {
$wpdb->get_results($wpdb->prepare("UPDATE {$ewd_feup_user_table_name} SET User_Membership_Fees_Paid='Yes', User_Account_Expiry='2100-01-01' WHERE User_ID=%d", $User_ID));
$Next_Time = time() + 60 * 60 * 24 * 366 * 100;
$Next_Payment_Date = '2100-01-01';
} elseif ($Payment_Frequency == "Yearly") {
$Next_Time = time() + 60 * 60 * 24 * 366;
$Next_Payment_Date = date("Y-m-d H:i:s", $Next_Time);
$wpdb->get_results($wpdb->prepare("UPDATE {$ewd_feup_user_table_name} SET User_Membership_Fees_Paid='Yes', User_Account_Expiry=%s WHERE User_ID=%d", $Next_Payment_Date, $User_ID));
} elseif ($Payment_Frequency == "Monthly") {
$Next_Time = time() + 60 * 60 * 24 * 31;
$Next_Payment_Date = date("Y-m-d H:i:s", $Next_Time);
$wpdb->get_results($wpdb->prepare("UPDATE {$ewd_feup_user_table_name} SET User_Membership_Fees_Paid='Yes', User_Account_Expiry=%s WHERE User_ID=%d", $Next_Payment_Date, $User_ID));
}
if ($Payment_Types == "Levels") {
$Level_ID = $Custom_Vars['level_id'];
$Current_Level_ID = $Custom_Vars['current_level_id'];
$wpdb->query($wpdb->prepare("UPDATE {$ewd_feup_user_table_name} SET Level_ID=%d WHERE User_ID=%d", $Level_ID, $User_ID));
$Return_Levels = get_option("EWD_FEUP_Return_Levels");
$New_Return['User_ID'] = $User_ID;
$New_Return['Level_ID'] = $Current_Level_ID;
$New_Return['Return_Time'] = $Next_Time;
$Return_Levels[] = $New_Return;
update_option("EWD_FEUP_Return_Levels", $Return_Levels);
}
Add_EWD_FEUP_Payment($User_ID, $Username, $Payer_ID, $PayPal_Receipt_Number, $Payment_Date, $Next_Payment_Date, $Payment_Amount, $Discount_Code_Used);
//}
if (DEBUG == true) {
foreach ($_POST as $key => $value) {
$SaveString .= $key . ": " . $value . "<br>";
}
$Current = file_get_contents("Information.html");
$SaveContent = $Current . "<BR><BR><BR><BR>FEUP<br>" . $SaveString;
file_put_contents("Information.html", $SaveContent);
}
if (DEBUG == true) {
error_log(date('[Y-m-d H:i e] ') . "Verified IPN: {$req} " . PHP_EOL, 3, LOG_FILE);
}
} else {
if (strcmp($res, "INVALID") == 0) {
// log for manual investigation
$to = $PayPal_Email_Address;
$subject = 'Download Area | Invalid Payment';
$message = '
Dear Administrator,
A payment has been made but is flagged as INVALID.
Please verify the payment manualy and contact the buyer.
Buyer Email: ' . $email . '
';
$headers = array('Content-Type: text/html; charset=UTF-8');
wp_mail($to, $subject, $message, $headers);
if (DEBUG == true) {
error_log(date('[Y-m-d H:i e] ') . "Invalid IPN: {$req}" . PHP_EOL, 3, LOG_FILE);
}
}
}
}