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<?php |
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declare(strict_types=1); |
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namespace Genkgo\Mail\Header; |
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/** |
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* Class HeaderValue |
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* @package Genkgo\Mail\Header |
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*/ |
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final class HeaderValue |
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{ |
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/** |
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* @var string |
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*/ |
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private $value; |
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/** |
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* @var array |
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*/ |
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private $parameters = []; |
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/** |
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* HeaderValue constructor. |
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* @param string $value |
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*/ |
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public function __construct(string $value) |
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{ |
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$this->assertValid($value); |
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$this->value = $value; |
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} |
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/** |
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* @param HeaderValueParameter $parameter |
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* @return HeaderValue |
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*/ |
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public function withParameter(HeaderValueParameter $parameter): HeaderValue |
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{ |
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$clone = clone $this; |
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$clone->parameters[$parameter->getName()] = $parameter; |
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return $clone; |
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} |
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/** |
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* @return string |
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*/ |
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public function getRaw(): string |
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{ |
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return $this->value; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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$value = implode('; ', array_merge([$this->value], $this->parameters)); |
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return (string) (new OptimalEncodedHeaderValue($value)); |
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} |
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/** |
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* @param string $value |
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*/ |
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private function assertValid(string $value): void |
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{ |
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if ($this->validate($value) === false) { |
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throw new \InvalidArgumentException('Invalid header value ' . $value); |
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} |
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} |
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/** |
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* @param $value |
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* @return bool |
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*/ |
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private function validate(string $value): bool |
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{ |
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$total = strlen($value); |
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for ($i = 0; $i < $total; $i += 1) { |
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$ord = ord($value[$i]); |
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if ($ord === 10) { |
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1 |
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return false; |
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} |
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if ($ord === 13) { |
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if ($i + 2 >= $total) { |
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return false; |
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} |
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$lf = ord($value[$i + 1]); |
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$sp = ord($value[$i + 2]); |
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if ($lf !== 10 || ! in_array($sp, [9, 32], true)) { |
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return false; |
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} |
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// skip over the LF following this |
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$i += 2; |
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} |
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} |
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return true; |
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} |
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/** |
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* @param string $name |
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* @return HeaderValueParameter |
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*/ |
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4 |
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public function getParameter(string $name): HeaderValueParameter |
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{ |
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if (isset($this->parameters[$name])) { |
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return $this->parameters[$name]; |
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} |
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throw new \UnexpectedValueException('No parameter with name ' . $name); |
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} |
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} |
genkgo /
mail
