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paypal-api.php
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paypal-api.php
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<?php
function generateAccessToken()
{
global $wpdb;
$result = $wpdb->get_results('SELECT * FROM ' . $wpdb->prefix . 'Paypal_Settings LIMIT 1', ARRAY_A);
if (empty($result)) {
$client_id = PAYPAL_DEFAULT_CLIENT_ID;
$app_sceret = PAYPAL_DEFAULT_APP_SECRET;
try {
$curl = curl_init();
$auth = base64_encode($client_id . ':' . $app_sceret);
curl_setopt_array($curl, array(
CURLOPT_URL => PAYPAL_API_URL . '/v1/oauth2/token',
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array('Authorization: Basic ' . $auth),
CURLOPT_POSTFIELDS => 'grant_type=client_credentials'
));
$result = curl_exec($curl);
if (!$result) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => curl_error($curl)
)
);
}
} catch (Exception $e) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => $e->getMessage()
)
);
}
$response = handleResponse($result);
curl_close($curl);
return $response['access_token'];
} else {
foreach ($result as $row) {
$client_id = $row['client_id'];
$app_sceret = $row['app_sceret'];
try {
$curl = curl_init();
$auth = base64_encode($client_id . ':' . $app_sceret);
$api_url = $row['api_url'];
curl_setopt_array($curl, array(
CURLOPT_URL => $api_url . '/v1/oauth2/token',
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array('Authorization: Basic ' . $auth),
CURLOPT_POSTFIELDS => 'grant_type=client_credentials'
));
$result = curl_exec($curl);
if (!$result) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => curl_error($curl)
)
);
}
} catch (Exception $e) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => $e->getMessage()
)
);
}
$response = handleResponse($result);
curl_close($curl);
return $response['access_token'];
}
}
}
function handleResponse($response)
{
$response = json_decode($response, true);
if (!empty($response['access_token']) || $response['status'] == 'CREATED' || $response['status'] == 'COMPLETED') {
return $response;
} else {
throw new Exception(json_encode(array('error' => 'Invalid status code', 'response' => $response)));
}
}
function createOrder()
{
global $wpdb;
$result = $wpdb->get_results('SELECT * FROM ' . $wpdb->prefix . 'Paypal_Settings LIMIT 1', ARRAY_A);
$accessToken = generateAccessToken();
if (empty($result)) {
$currency = PAYPAL_DEFAULT_CURRENCY;
$amount = isset($_REQUEST['amount']) ? $_REQUEST['amount'] : PAYPAL_ORDERS_DEFAULT_AMOUNT;
try {
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => PAYPAL_API_URL . '/v2/checkout/orders',
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array(
'Authorization: Bearer ' . $accessToken,
'Content-Type: application/json'
),
CURLOPT_POSTFIELDS => json_encode(array(
'intent' => 'CAPTURE',
'purchase_units' => array(
array(
'amount' => array(
'currency_code' => $currency,
'value' => $amount
)
)
)
))
));
$result = curl_exec($curl);
if (!$result) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => curl_error($curl)
)
);
}
} catch (Exception $e) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => $e->getMessage()
)
);
}
$response = handleResponse($result);
curl_close($curl);
echo json_encode($response, JSON_PRETTY_PRINT);
die();
} else {
foreach ($result as $row) {
$currency = $row['currency'];
$amount = $row['default_amount'];
$api_url = $row['api_url'];
try {
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => $api_url . '/v2/checkout/orders',
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array(
'Authorization: Bearer ' . $accessToken,
'Content-Type: application/json'
),
CURLOPT_POSTFIELDS => json_encode(array(
'intent' => 'CAPTURE',
'purchase_units' => array(
array(
'amount' => array(
'currency_code' => $currency,
'value' => $amount
)
)
)
))
));
$result = curl_exec($curl);
if (!$result) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => curl_error($curl)
)
);
}
} catch (Exception $e) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => $e->getMessage()
)
);
}
$response = handleResponse($result);
curl_close($curl);
echo json_encode($response, JSON_PRETTY_PRINT);
die();
}
}
}
function capturePayment()
{
if (isset($_REQUEST['orderID'])) {
$orderId = $_REQUEST['orderID'];
} else {
echo json_encode(
array(
'msg' => 'Cannot capture payment',
'error' => 'MISSING REQUEST PARAMETER(S)',
'missing_parameter' => 'orderID'
),
JSON_PRETTY_PRINT
);
die();
}
$accessToken = generateAccessToken();
global $wpdb;
$result = $wpdb->get_results('SELECT * FROM ' . $wpdb->prefix . 'Paypal_Settings LIMIT 1', ARRAY_A);
if (empty($result)) {
try {
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => PAYPAL_API_URL . '/v2/checkout/orders/' . $orderId . '/capture',
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array(
'Authorization: Bearer ' . $accessToken,
'Content-Type: application/json'
)
));
$result = curl_exec($curl);
if (!$result) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => curl_error($curl)
)
);
}
} catch (Exception $e) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => $e->getMessage()
)
);
}
$response = handleResponse($result);
curl_close($curl);
echo json_encode($response, JSON_PRETTY_PRINT);
die();
} else {
foreach ($result as $row) {
$api_url = $row['api_url'];
try {
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => $api_url . '/v2/checkout/orders/' . $orderId . '/capture',
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array(
'Authorization: Bearer ' . $accessToken,
'Content-Type: application/json'
)
));
$result = curl_exec($curl);
if (!$result) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => curl_error($curl)
)
);
}
} catch (Exception $e) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => $e->getMessage()
)
);
}
$response = handleResponse($result);
curl_close($curl);
echo json_encode($response, JSON_PRETTY_PRINT);
die();
}
}
}
function updateRequestStatus()
{
if (isset($_REQUEST['request_id']) && isset($_REQUEST['status'])) {
global $wpdb;
$result = $wpdb->update(
$wpdb->prefix . "Paypal_Request",
array(
'status' => $_REQUEST['status'],
),
array(
'request_id' => $_REQUEST['request_id']
)
);
if ($result) {
echo json_encode(
array(
'msg' => 'Updated request status'
),
JSON_PRETTY_PRINT
);
die();
} else {
echo json_encode(
array(
'msg' => 'Cannot updated request status',
'error' => $wpdb->last_error
),
JSON_PRETTY_PRINT
);
die();
}
} else {
echo json_encode(
array(
'msg' => 'Cannot updated request status',
'error' => 'Missing needed parameter(s)'
),
JSON_PRETTY_PRINT
);
}
}
function createPayout()
{
if (isset($_REQUEST['requester']) && isset($_REQUEST['amount'])) {
global $wpdb;
$requester = $_REQUEST['requester'];
$amount = $_REQUEST['amount'];
$result = $wpdb->get_results('SELECT * FROM ' . $wpdb->prefix . 'Paypal_Settings LIMIT 1', ARRAY_A);
$accessToken = generateAccessToken();
if (empty($result)) {
$currency = PAYPAL_DEFAULT_CURRENCY;
try {
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => PAYPAL_API_URL . '/v1/payments/payouts',
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array(
'Authorization: Bearer ' . $accessToken,
'Content-Type: application/json'
),
CURLOPT_POSTFIELDS => json_encode(array(
'sender_batch_header' => array(
'sender_batch_id' => uniqid(),
'recipient_type' => 'EMAIL',
'email_subject' => 'You have a payout!',
'email_message' => 'You have received a payout! Thanks for using our service!',
),
'items' => array(
array(
'amount' => array(
'currency' => $currency,
'value' => $amount
),
'sender_item_id' => uniqid() . '001',
'recipient_wallet' => 'PAYPAL',
'receiver' => $requester,
)
)
))
));
$result = curl_exec($curl);
if (!$result) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => curl_error($curl)
)
);
}
} catch (Exception $e) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => $e->getMessage()
)
);
}
$response = json_decode($result);
curl_close($curl);
echo json_encode($response, JSON_PRETTY_PRINT);
die();
} else {
foreach ($result as $row) {
$currency = $row['currency'];
$api_url = $row['api_url'];
try {
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => $api_url . '/v1/payments/payouts',
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => array(
'Authorization: Bearer ' . $accessToken,
'Content-Type: application/json'
),
CURLOPT_POSTFIELDS => json_encode(array(
'sender_batch_header' => array(
'sender_batch_id' => uniqid(),
'email_subject' => 'You have a payout!',
'email_message' => 'You have received a payout! Thanks for using our service!',
),
'items' => array(
array(
'amount' => array(
'currency' => $currency,
'value' => $amount
),
'sender_item_id' => uniqid() . '001',
'recipient_type' => 'EMAIL',
'recipient_wallet' => 'PAYPAL',
'receiver' => $requester,
)
)
))
));
$result = curl_exec($curl);
if (!$result) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => curl_error($curl)
)
);
}
} catch (Exception $e) {
echo json_encode(
array(
'msg' => 'cURL returned an error',
'error' => $e->getMessage()
)
);
}
$response = json_decode($result);
curl_close($curl);
echo json_encode($response, JSON_PRETTY_PRINT);
die();
}
}
} else {
echo json_encode(
array(
'msg' => 'Cannot updated request status',
'error' => 'Missing needed parameter(s)'
),
JSON_PRETTY_PRINT
);
die();
}
}