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<?php declare(strict_types=1); |
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namespace Limoncello\Crypt; |
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/** |
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* Copyright 2015-2019 [email protected] |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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use Limoncello\Crypt\Exceptions\CryptException; |
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use function openssl_error_string; |
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/** |
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* @package Limoncello\Crypt |
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*/ |
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abstract class BaseCrypt |
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{ |
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/** |
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* @return void |
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*/ |
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protected function clearErrors(): void |
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{ |
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/** @noinspection PhpStatementHasEmptyBodyInspection */ |
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while ($this->openSslErrorString() !== false) { |
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// drop all accumulated error messages if any |
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} |
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} |
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/** |
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* @return null|string |
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*/ |
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protected function getErrorMessage(): ?string |
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{ |
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$message = null; |
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while (($errorLine = $this->openSslErrorString()) !== false) { |
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$message .= ($message === null ? $errorLine : PHP_EOL . $errorLine); |
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} |
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return $message; |
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} |
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/** |
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* @param CryptException $exception |
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* |
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* @return void |
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*/ |
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protected function throwException(CryptException $exception): void |
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{ |
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throw $exception; |
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} |
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/** |
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* We need this wrapper for testing purposes so we can mock system call to Open SSL. |
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* |
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* @return string|false |
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*/ |
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protected function openSslErrorString() |
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{ |
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return openssl_error_string(); |
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} |
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} |
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limoncello-php-dist /
crypt
This check looks for the generic type
arrayas a return type and suggests a more specific type. This type is inferred from the actual code.