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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Http\Header\Internal; |
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use InvalidArgumentException; |
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use Yiisoft\Http\Header\DirectiveHeader; |
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abstract class DirectivesHeaderValue extends BaseHeaderValue |
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{ |
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protected const DIRECTIVES = []; |
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protected const ARG_EMPTY = 1; |
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protected const ARG_DELTA_SECONDS = 2; |
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protected const ARG_HEADERS_LIST = 4; |
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protected const ARG_CUSTOM = 8; |
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protected string $directive = ''; |
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protected ?string $argument = null; |
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protected int $argumentType = self::ARG_EMPTY; |
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public function __toString(): string |
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{ |
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if ($this->directive === '') { |
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return ''; |
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} |
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if ($this->argument === null) { |
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return $this->directive; |
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} |
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if ($this->argumentType === self::ARG_HEADERS_LIST) { |
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return "{$this->directive}=\"{$this->argument}\""; |
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} |
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if ($this->argumentType === self::ARG_CUSTOM) { |
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$argument = $this->encodeQuotedString($this->argument); |
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if ( |
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$argument === '' |
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|| strlen($argument) !== strlen($this->argument) |
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|| preg_match('/[^a-z0-9_]/i', $argument) === 1 |
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) { |
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$argument = '"' . $argument . '"'; |
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} |
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return "{$this->directive}={$argument}"; |
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} |
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return "{$this->directive}={$this->argument}"; |
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} |
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public static function createHeader(): DirectiveHeader |
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{ |
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return new DirectiveHeader(static::class); |
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} |
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public function getDirective(): string |
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{ |
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return $this->directive; |
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} |
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public function getValue(): string |
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{ |
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return $this->getDirective(); |
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} |
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public function hasArgument(): bool |
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{ |
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return $this->argument !== null; |
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} |
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public function getArgument(): ?string |
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{ |
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return $this->argument; |
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} |
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public function getArgumentList(): array |
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{ |
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return $this->argument === null ? [] : explode(',', $this->argument); |
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} |
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/** |
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* @param string $directive |
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* @param string|null $argument |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function withDirective(string $directive, string $argument = null): self |
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{ |
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$clone = clone $this; |
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$clone->setDirective($directive, $argument, true); |
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return $clone; |
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} |
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protected function setValue(string $value): void |
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{ |
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$this->setDirective($value); |
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} |
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private function setDirective(string $value, string $argument = null, bool $trowError = false): bool |
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{ |
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$name = strtolower($value); |
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$argumentType = static::DIRECTIVES[$name] ?? self::ARG_CUSTOM; |
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$writeProperties = function (\Exception $err = null, string $arg = null, int $type = self::ARG_EMPTY) use ( |
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$name, |
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$trowError |
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) { |
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if ($trowError && $err !== null) { |
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throw $err; |
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} |
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$this->directive = $name; |
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$this->argument = $arg; |
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$this->argumentType = $type; |
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$this->error = $err; |
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return $this->error === null; |
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}; |
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if ($argument === null && ($argumentType & self::ARG_EMPTY) === self::ARG_EMPTY) { |
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return $writeProperties(); |
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} elseif ($argumentType === self::ARG_EMPTY) { |
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1 |
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if ($argument !== null) { |
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return $writeProperties(new InvalidArgumentException("{$name} directive should not have an argument")); |
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} |
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return $writeProperties(); |
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} elseif (($argumentType & self::ARG_HEADERS_LIST) === self::ARG_HEADERS_LIST) { |
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// Validate headers list |
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$argument = $argument === null ? null : trim($argument); |
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if ($argument === null || preg_match('/^[\\w\\-]+(?:(?:\\s*,\\s*)[\\w\\-]+)*$/', $argument) !== 1) { |
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return $writeProperties( |
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new InvalidArgumentException( |
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"{$name} directive should have an argument as a comma separated headers name list" |
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) |
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); |
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} |
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return $writeProperties(null, $argument, self::ARG_HEADERS_LIST); |
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} elseif (($argumentType & self::ARG_DELTA_SECONDS) === self::ARG_DELTA_SECONDS) { |
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$this->argumentType = self::ARG_DELTA_SECONDS; |
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// Validate number |
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if ($argument === null || preg_match('/^\\d+$/', $argument) !== 1) { |
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return $writeProperties( |
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new InvalidArgumentException("{$name} directive should have numeric argument"), |
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'0', |
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self::ARG_DELTA_SECONDS |
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); |
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} |
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return $writeProperties(null, $argument, self::ARG_DELTA_SECONDS); |
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} |
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return $writeProperties(null, $argument, $argumentType); |
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} |
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} |
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yiisoft /
http
