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<?php |
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/** |
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* Helper class |
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*/ |
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namespace Omnipay\Common; |
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use InvalidArgumentException; |
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/** |
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* Helper class |
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* |
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* This class defines various static utility functions that are in use |
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* throughout the Omnipay system. |
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*/ |
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class Helper |
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{ |
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/** |
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* Convert a string to camelCase. Strings already in camelCase will not be harmed. |
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* |
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* @param string $str The input string |
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* @return string camelCased output string |
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*/ |
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public static function camelCase($str) |
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{ |
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$str = self::convertToLowercase($str); |
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return preg_replace_callback( |
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'/_([a-z])/', |
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function ($match) { |
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return strtoupper($match[1]); |
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}, |
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$str |
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); |
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} |
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/** |
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* Convert strings with underscores to be all lowercase before camelCase is preformed. |
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* |
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* @param string $str The input string |
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* @return string The output string |
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*/ |
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protected static function convertToLowercase($str) |
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{ |
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$explodedStr = explode('_', $str); |
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$lowercasedStr = []; |
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if (count($explodedStr) > 1) { |
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foreach ($explodedStr as $value) { |
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$lowercasedStr[] = strtolower($value); |
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} |
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$str = implode('_', $lowercasedStr); |
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} |
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return $str; |
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} |
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/** |
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* Validate a card number according to the Luhn algorithm. |
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* |
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* @param string $number The card number to validate |
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* @return boolean True if the supplied card number is valid |
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*/ |
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public static function validateLuhn($number) |
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{ |
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$str = ''; |
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foreach (array_reverse(str_split($number)) as $i => $c) { |
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$str .= $i % 2 ? $c * 2 : $c; |
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} |
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return array_sum(str_split($str)) % 10 === 0; |
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} |
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/** |
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* Initialize an object with a given array of parameters |
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* |
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* Parameters are automatically converted to camelCase. Any parameters which do |
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* not match a setter on the target object are ignored. |
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* |
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* @param mixed $target The object to set parameters on |
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* @param array $parameters An array of parameters to set |
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*/ |
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public static function initialize($target, array $parameters = null) |
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{ |
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if ($parameters) { |
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foreach ($parameters as $key => $value) { |
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$method = 'set'.ucfirst(static::camelCase($key)); |
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if (method_exists($target, $method)) { |
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$target->$method($value); |
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} |
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} |
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} |
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} |
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/** |
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* Resolve a gateway class to a short name. |
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* |
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* The short name can be used with GatewayFactory as an alias of the gateway class, |
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* to create new instances of a gateway. |
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*/ |
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public static function getGatewayShortName($className) |
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{ |
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if (0 === strpos($className, '\\')) { |
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$className = substr($className, 1); |
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} |
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if (0 === strpos($className, 'Omnipay\\')) { |
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return trim(str_replace('\\', '_', substr($className, 8, -7)), '_'); |
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} |
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return '\\'.$className; |
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} |
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/** |
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* Resolve a short gateway name to a full namespaced gateway class. |
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* |
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* Class names beginning with a namespace marker (\) are left intact. |
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* Non-namespaced classes are expected to be in the \Omnipay namespace, e.g.: |
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* |
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* \Custom\Gateway => \Custom\Gateway |
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* \Custom_Gateway => \Custom_Gateway |
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* Stripe => \Omnipay\Stripe\Gateway |
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* PayPal\Express => \Omnipay\PayPal\ExpressGateway |
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* PayPal_Express => \Omnipay\PayPal\ExpressGateway |
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* |
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* @param string $shortName The short gateway name |
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* @return string The fully namespaced gateway class name |
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*/ |
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public static function getGatewayClassName($shortName) |
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{ |
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if (0 === strpos($shortName, '\\')) { |
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return $shortName; |
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} |
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// replace underscores with namespace marker, PSR-0 style |
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$shortName = str_replace('_', '\\', $shortName); |
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if (false === strpos($shortName, '\\')) { |
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$shortName .= '\\'; |
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} |
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return '\\Omnipay\\'.$shortName.'Gateway'; |
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} |
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} |
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thephpleague /
omnipay-common
