<?php

include_once './engine/initialize.php';

//Load the most important module

$CORE->load_CoreModule('accounts.finances');

//Setup the finances class

$finance = new AccountFinances();

define('SECRET', ''); // YOUR SECRET KEY

define('CREDIT_TYPE_CHARGEBACK', 2);

//Whitelisted IP addresses

$ipsWhitelist = array(

);

//Get them variables

$userId = isset($_GET['uid']) ? (int)$_GET['uid'] : NULL;

$credits = isset($_GET['currency']) ? (int)$_GET['currency'] : NULL;

$type = isset($_GET['type']) ? (int)$_GET['type'] : NULL;

$refId = isset($_GET['ref']) ? $_GET['ref'] : NULL;

$signature = isset($_GET['sig']) ? $_GET['sig'] : NULL;

//Assume failured

$result = false;

//A little fuction

function calculatePingbackSignature($params, $secret)

}

//Check if them variables are set

if (!empty($userId) && !empty($credits) && isset($type) && !empty($refId) && !empty($signature))

{

//Let's generate the signature

$signatureParams = array(

'uid' => $userId,

'currency' => $credits,

'type' => $type,

'ref' => $refId

);

$signatureCalculated = calculatePingbackSignature($signatureParams, SECRET);

//check if IP is in whitelist and if signature matches

if (in_array($_SERVER['REMOTE_ADDR'], $ipsWhitelist) && ($signature == $signatureCalculated))

{

//Success

$result = true;

//Log this transaction

$CORE->load_CoreModule('transaction.logging');

//Setup the log class

$Logs = new TransactionLogging();

//Save the variables

$Logs->SetVariables($_GET);

//Set the account id

$finance->SetAccount($userId);

//Set the currency to gold

$finance->SetCurrency(CURRENCY_GOLD);

//Check if it's deduction, Paymentwall send amount value with "-"

if ($type == CREDIT_TYPE_CHARGEBACK)

{

//remove the minus

$credits = (int)trim($credits, '-');

}

//Set the amount we are Giving/Taking

$finance->SetAmount($credits);

if ($type == CREDIT_TYPE_CHARGEBACK)

{

// Deduct credits from user

// This is optional, but we recommend this type of crediting to be implemented as well

// Note that currency amount sent for chargeback is negative, e.g. -5, so be caferul about the sign

// Don’t deduct negative number, otherwise user will get credits instead of losing them

//Resolve the deduction reason by id

switch ($_GET['reason'])

{

case 1:

$reason = 'Chargeback';

$reasonUser = 'Payment chargeback';

break;

case 2:

$reason = 'Credit Card fraud Ban user';

$reasonUser = 'Credit Card fraud';

break;

case 3:

$reason = 'Order fraud Ban user';

$reasonUser = 'Order fraud';

break;

case 4:

$reason = 'Bad data entry';

$reasonUser = 'Bad data entry';

break;

case 5:

$reason = 'Fake / proxy user';

$reasonUser = 'Fake / proxy user';

break;

case 6:

$reason = 'Rejected by advertiser';

$reasonUser = 'Rejected by advertiser';

break;

case 7:

$reason = 'Duplicate conversions';

$reasonUser = 'Duplicate conversions';

break;

case 8:

$reason = 'Goodwill credit taken back';

$reasonUser = 'Goodwill credit taken back';

break;

case 9:

$reason = 'Cancelled order';

$reasonUser = 'Cancelled order';

break;

case 10:

$reason = 'Partially reversed transaction';

$reasonUser = 'Partially reversed transaction';

break;

default:

$reason = 'Unknown code ' . (int)$_GET['reason'];

$reasonUser = 'Uuknown reason';

break;

}

//append message to the log

$Logs->append("The transaction is deduction type, reason: \"".$reason."\". ");

//Take the coins from the user

$Deduct = $finance->Charge('Deduction reason: ' . $reasonUser . '.', CA_SOURCE_TYPE_DEDUCTION);

//Check if the deduction was successfull

if ($Deduct === true)

{

//Deduction success

$Logs->SetLogType(TRANSACTION_LOG_TYPE_NORMAL);

//append message to the log

$Logs->append("The deduction was successfull.");

}

else

{

//Deduction failed

$Logs->SetLogType(TRANSACTION_LOG_TYPE_URGENT);

//append message to the log

$Logs->append("The deduction of coins failed, error returned: ".$Deduct.". ");

}

unset($reason, $reasonUser, $Deduct);

}

else

{

// Give credits to user

//resolve the transaction type

switch ($type)

{

case 0:

$TransactionType = 'Credit is given.';

$CA_SourceType = CA_SOURCE_TYPE_PURCHASE;

$CA_SourceString = 'Purchased Gold Coins';

break;

case 1:

$TransactionType = 'Credit is given as a customer service.';

$CA_SourceType = CA_SOURCE_TYPE_REWARD;

$CA_SourceString = 'Earned Gold Coins';

break;

default:

$TransactionType = 'Uknown type ' . $type;

$CA_SourceType = CA_SOURCE_TYPE_NONE;

$CA_SourceString = 'Received gold coins from unknown source';

break;

}

//append message to the log

$Logs->append("The transaction is reward type, type: \"".$TransactionType."\". ");

//Give coins to the user

$Reward = $finance->Reward($CA_SourceString, $CA_SourceType);

//check if the reward was successful

if ($Reward)

{

//Reward success

$Logs->SetLogType(TRANSACTION_LOG_TYPE_NORMAL);

//append message to the log

$Logs->append("The rewarding was successfull. ");

}

else

{

//Reward failed

$Logs->SetLogType(TRANSACTION_LOG_TYPE_URGENT);

//append message to the log

$Logs->append("The rewarding with coins failed, error returned: ".$Reward.". ");

}

unset($TransactionType, $CA_SourceType, $CA_SourceString, $Reward);

}

unset($finance);

//save the log

$Logs->save();

}

}

//The request was OK

if ($result)

{

echo 'OK';

exit;

}

else

{

header('HTTP/1.0 404 not found');

exit;

}