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<?php |
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namespace OpenBuildings\PayPal; |
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class Util { |
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public static function receiver_list($receivers, $chained = FALSE) |
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{ |
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$receiver_list = array(); |
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foreach ($receivers as $index => $receiver) |
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{ |
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$receiver_list[$index]['amount'] = number_format(abs( (float) $receiver['amount']), 2, '.', ''); |
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if ( ! empty($receiver['email'])) |
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{ |
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$receiver_list[$index]['email'] = $receiver['email']; |
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} |
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if ( ! empty($receiver['accountId'])) |
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{ |
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$receiver_list[$index]['accountId'] = $receiver['accountId']; |
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} |
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if ($chained) |
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{ |
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$receiver_list[$index]['primary'] = empty($receiver['primary']) |
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? 'false' |
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: 'true'; |
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} |
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} |
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return $receiver_list; |
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} |
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public static function array_to_nvp(array $array, $key, $prefix) |
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{ |
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$result = array(); |
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foreach ($array[$key] as $index => $values) |
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{ |
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$nvp_key = $key.'.'.$prefix.'('.$index.')'; |
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foreach ($values as $name => $value) |
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{ |
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$result[$nvp_key.'.'.$name] = $value; |
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} |
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} |
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return $result; |
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} |
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/** |
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* Parse response string without parse_str() |
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* parse_str converts dots and spaces to underscores. |
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* The reason is because all keys must be valid PHP variable names. |
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* http://php.net/manual/en/function.parse-str.php#76978 |
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* |
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* Notice: It does not work with strings representing nested arrays like: |
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* "first=value&arr[]=foo+bar&arr[]=baz" |
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* |
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* It is not needed for the purpose of parsing PayPal responses. |
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* |
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* @param string $response_string a key value pair like param1=value1¶m2=value2 |
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* @return array |
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*/ |
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public static function parse_str($response_string) |
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{ |
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$response_raw_array = explode('&', $response_string); |
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$response = array(); |
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foreach ($response_raw_array as $keyval) |
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{ |
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$keyval = explode('=', $keyval); |
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if (count($keyval) === 2) |
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{ |
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$response[$keyval[0]] = urldecode($keyval[1]); |
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} |
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} |
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return $response; |
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} |
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/** |
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* Validates an IPN request from Paypal. |
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*/ |
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public static function verify_ipn($raw_data = NULL) |
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{ |
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if ($raw_data === NULL) |
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{ |
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$raw_data = file_get_contents('php://input'); |
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} |
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if (empty($raw_data)) |
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return FALSE; |
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$raw_post_array = explode('&', $raw_data); |
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$post_data = array(); |
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foreach ($raw_post_array as $keyval) |
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{ |
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$keyval = explode('=', $keyval); |
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if (count($keyval) === 2) |
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{ |
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$post_data[$keyval[0]] = urldecode($keyval[1]); |
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} |
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} |
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$request_data = 'cmd=_notify-validate'; |
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foreach ($post_data as $key => $value) |
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{ |
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if (version_compare(PHP_VERSION, '5.4') < 0 AND get_magic_quotes_gpc()) |
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{ |
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$value = stripslashes($value); |
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} |
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$value = urlencode($value); |
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$request_data .= "&$key=$value"; |
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} |
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$url = Payment::webscr_url(); |
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$curl = curl_init($url); |
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curl_setopt_array($curl, array( |
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CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1, |
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CURLOPT_POST => 1, |
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CURLOPT_RETURNTRANSFER => 1, |
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CURLOPT_POSTFIELDS => $request_data, |
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CURLOPT_SSL_VERIFYPEER => 1, |
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CURLOPT_SSL_VERIFYHOST => 2, |
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CURLOPT_FORBID_REUSE => 1, |
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CURLOPT_HTTPHEADER => array( |
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'Connection: Close', |
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) |
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)); |
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if ( ! ($response = curl_exec($curl))) |
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{ |
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// Get the error code and message |
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$code = curl_errno($curl); |
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$error = curl_error($curl); |
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// Close curl |
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curl_close($curl); |
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throw new Request_Exception('PayPal API request for :method failed: :error (:code)', $url, $post_data, array( |
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':method' => '_notify-validate', |
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':error' => $error, |
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':code' => $code |
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)); |
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} |
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curl_close($curl); |
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if ($response === 'VERIFIED') |
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return TRUE; |
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if ($response === 'INVALID') |
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throw new Request_Exception('PayPal request to verify IPN was invalid!', $url, $post_data); |
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return FALSE; |
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} |
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} |
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