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Merge pull request #1 from povils/develop
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‎.gitignore‎

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/vendor
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composer.lock
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composer.phar
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phpunit.xml
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.idea

‎phpunit.xml.dist‎

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<?xml version="1.0" encoding="UTF-8"?>
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<phpunit backupGlobals="false"
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backupStaticAttributes="false"
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bootstrap="vendor/autoload.php"
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colors="true"
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convertErrorsToExceptions="true"
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convertNoticesToExceptions="true"
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convertWarningsToExceptions="true"
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processIsolation="false"
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stopOnFailure="false"
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syntaxCheck="false">
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<testsuites>
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<testsuite name="Omnipay Paysera Test Suite">
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<directory>./tests</directory>
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</testsuite>
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</testsuites>
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<filter>
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<whitelist>
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<directory>./src</directory>
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<exclude>
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<directory>./vendor</directory>
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</exclude>
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</whitelist>
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</filter>
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</phpunit>

‎src/Common/Encoder.php‎

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<?php
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/**
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* This is the part of Povils open-source library.
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*
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* @author Povilas Susinskas
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*/
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namespace Omnipay\Paysera\Common;
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/**
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* Class Encoder
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*
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* @package Omnipay\Paysera\Common
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*/
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class Encoder
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{
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/**
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* @param string $input
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*
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* @return string
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*/
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public static function encode($input)
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{
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return strtr(base64_encode($input), ['+' => '-', '/' => '_']);
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}
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/**
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* @param $input
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*
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* @return string
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*/
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public static function decode($input)
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{
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return base64_decode(strtr($input, ['-' => '+', '_' => '/']));
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}
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}

‎src/Common/PurchaseDataGenerator.php‎

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<?php
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/**
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* This is the part of Povils open-source library.
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*
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* @author Povilas Susinskas
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*/
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namespace Omnipay\Paysera\Common;
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use Omnipay\Paysera\Message\PurchaseRequest;
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/**
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* Class PurchaseDataGenerator
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*
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* @package Omnipay\Paysera\Common
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*/
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class PurchaseDataGenerator
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{
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/**
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* @param PurchaseRequest $request
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*
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* @return string
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*/
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public static function generate(PurchaseRequest $request)
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{
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$parameters = [
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'projectid' => $request->getProjectId(),
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'orderid' => $request->getTransactionId(),
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'accepturl' => $request->getReturnUrl(),
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'cancelurl' => $request->getCancelUrl(),
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'callbackurl' => $request->getNotifyUrl(),
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'version' => $request->getVersion(),
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'payment' => $request->getPaymentMethod(),
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'lang' => $request->getLanguage(),
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'amount' => $request->getAmountInteger(),
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'currency' => $request->getCurrency(),
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'test' => $request->getTestMode() ? '1' : '0',
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];
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if(null !== $customer = $request->getCustomer()){
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$customerData = [
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'p_firstname' => $customer->getFirstName(),
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'p_lastname' => $customer->getLastName(),
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'p_email' => $customer->getEmail(),
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'p_street' => $customer->getStreet(),
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'p_city' => $customer->getCity(),
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'p_state' => $customer->getState(),
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'p_zip' => $customer->getPostcode(),
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'p_countrycode' => $customer->getCountryCode(),
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'country' => $customer->getCountry(),
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];
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$parameters = array_merge($parameters, $customerData);
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}
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$filteredParameters = self::filterParameters($parameters);
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PurchaseParameterValidator::validate($filteredParameters);
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return Encoder::encode(http_build_query($filteredParameters, '', '&'));
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}
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/**
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* @param array $parameters
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*
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* @return array
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*/
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private static function filterParameters(array $parameters)
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{
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return array_filter($parameters, function ($value) {
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return $value !== '' && $value !== null;
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});
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}
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}

‎src/Common/PurchaseParameterValidator.php‎

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<?php
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/**
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* This is the part of Povils open-source library.
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*
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* @author Povilas Susinskas
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*/
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namespace Omnipay\Paysera\Common;
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use Omnipay\Common\Exception\InvalidRequestException;
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/**
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* Class PurchaseParameterValidator
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*
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* @package Omnipay\Paysera\Common
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*/
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class PurchaseParameterValidator
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{
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/**
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* @param array $data
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*
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* @throws InvalidRequestException
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*/
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public static function validate(array $data)
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{
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foreach (self::getRequestSpecifications() as $specification) {
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list($name, $maxLength, $required, $regexp) = $specification;
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if ($required && false === isset($data[$name])) {
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throw new InvalidRequestException(sprintf("'%s' is required but missing.", $name));
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}
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if (false === empty($data[$name])) {
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if ($maxLength && strlen($data[$name]) > $maxLength) {
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throw new InvalidRequestException(sprintf(
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"'%s' value is too long (%d), %d characters allowed.",
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$name,
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strlen($data[$name]),
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$maxLength
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));
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}
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if ($regexp !== '' && !preg_match($regexp, $data[$name])) {
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throw new InvalidRequestException(sprintf("'%s' value '%s' is invalid.", $name, $data[$name]));
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}
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}
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}
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}
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/**
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* Array structure:
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* name – request parameter name
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* maxLength – max allowed length for parameter
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* required – is this parameter required
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* regexp – regexp to test parameter value
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*
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* @return array
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*/
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protected static function getRequestSpecifications()
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{
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return [
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['orderid', 40, true, ''],
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['accepturl', 255, true, ''],
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['cancelurl', 255, true, ''],
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['callbackurl', 255, true, ''],
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['lang', 3, false, '/^[a-z]{3}$/i'],
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['amount', 11, false, '/^\d+$/'],
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['currency', 3, false, '/^[a-z]{3}$/i'],
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['payment', 20, false, ''],
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['country', 2, false, '/^[a-z_]{2}$/i'],
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['p_firstname', 255, false, ''],
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['p_lastname', 255, false, ''],
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['p_email', 255, false, ''],
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['p_street', 255, false, ''],
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['p_city', 255, false, ''],
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['p_state', 20, false, ''],
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['p_zip', 20, false, ''],
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['p_countrycode', 2, false, '/^[a-z]{2}$/i'],
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['test', 1, false, '/^[01]$/'],
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];
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}
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}

‎src/Common/SignatureGenerator.php‎

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<?php
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/**
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* This is the part of Povils open-source library.
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*
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* @author Povilas Susinskas
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*/
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namespace Omnipay\Paysera\Common;
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/**
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* Class SignatureGenerator
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*
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* @package Omnipay\Paysera\Common
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*/
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class SignatureGenerator
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{
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/**
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* @param string $data
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* @param string $password
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*
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* @return string
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*/
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public static function generate($data, $password)
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{
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return md5($data . $password);
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}
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}

‎src/Common/SignatureValidator.php‎

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<?php
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/**
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* This is the part of Povils open-source library.
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*
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* @author Povilas Susinskas
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*/
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namespace Omnipay\Paysera\Common;
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use Guzzle\Http\ClientInterface;
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/**
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* Class SignatureValidator
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*
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* @package Omnipay\Paysera\Common
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*/
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class SignatureValidator
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{
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/**
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* @var string
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*/
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private static $endpoint = 'http://www.paysera.com/download/public.key';
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/**
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* @param array $data
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* @param string $password
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* @param ClientInterface $client
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*
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* @return bool
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*/
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public static function isValid(array $data, $password, ClientInterface $client)
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{
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return self::isValidSS1($data, $password) && self::isValidSS2($data, $client);
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}
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/**
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* @param array $data
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* @param string $password
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*
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* @return bool
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*/
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private static function isValidSS1(array $data, $password)
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{
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return SignatureGenerator::generate($data['data'], $password) === $data['ss1'];
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}
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/**
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* @param array $data
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* @param ClientInterface $client
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*
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* @return bool
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*/
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private static function isValidSS2(array $data, ClientInterface $client)
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{
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$response = $client->get(self::$endpoint)->send();
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if (200 === $response->getStatusCode() && false !== $publicKey = openssl_get_publickey($response->getBody())) {
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return openssl_verify($data['data'], Encoder::decode($data['ss2']), $publicKey) === 1;
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}
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return false;
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}
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}

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