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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the humbug/php-scoper package. |
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* |
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* Copyright (c) 2017 Théo FIDRY <[email protected]>, |
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* Pádraic Brady <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Humbug\PhpScoper; |
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use Countable; |
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use InvalidArgumentException; |
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use function array_map; |
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use function array_merge; |
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use function array_unique; |
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use function count; |
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use function in_array; |
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use function sprintf; |
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use function substr; |
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use function trim; |
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final class Whitelist implements Countable |
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{ |
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private $classes; |
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private $namespaces; |
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private $whitelistGlobalConstants; |
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public static function create(bool $whitelistGlobalConstants, string ...$elements): self |
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{ |
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$classes = []; |
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$namespaces = []; |
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foreach ($elements as $element) { |
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if (isset($element[0]) && '\\' === $element[0]) { |
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$element = substr($element, 1); |
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} |
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if ('' === trim($element)) { |
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throw new InvalidArgumentException( |
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sprintf( |
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'Invalid whitelist element "%s": cannot accept an empty string', |
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$element |
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) |
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); |
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} |
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if ('\*' === substr($element, -2)) { |
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$namespaces[] = substr($element, 0, -2); |
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} elseif ('*' === $element) { |
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$namespaces[] = ''; |
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} else { |
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$classes[] = $element; |
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} |
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} |
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return new self( |
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$whitelistGlobalConstants, |
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array_unique($classes), |
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array_unique($namespaces) |
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); |
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} |
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/** |
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* @param string[] $classes |
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* @param string[] $namespaces |
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*/ |
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private function __construct(bool $whitelistGlobalConstants, array $classes, array $namespaces) |
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{ |
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$this->whitelistGlobalConstants = $whitelistGlobalConstants; |
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$this->classes = $classes; |
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$this->namespaces = $namespaces; |
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} |
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public function whitelistGlobalConstants(): bool |
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{ |
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return $this->whitelistGlobalConstants; |
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} |
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public function isClassWhitelisted(string $name): bool |
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{ |
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return in_array($name, $this->classes, true); |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getClassWhitelistArray(): array |
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{ |
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return $this->classes; |
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} |
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public function isNamespaceWhitelisted(string $name): bool |
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{ |
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foreach ($this->namespaces as $namespace) { |
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if ('' === $namespace || 0 === strpos($name, $namespace)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function count(): int |
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{ |
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return count($this->classes) + count($this->namespaces); |
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} |
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public function toArray(): array |
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{ |
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$namespaces = array_map( |
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function (string $namespace): string { |
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return '' === $namespace ? '*' : $namespace.'\*'; |
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}, |
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$this->namespaces |
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); |
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return array_merge($this->classes, $namespaces); |
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} |
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} |
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humbug /
php-scoper
