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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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use Genkgo\Mail\Stream\OptimalTransferEncodedPhraseStream; |
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use Genkgo\Mail\Stream\OptimalTransferEncodedTextStream; |
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final class OptimalEncodedHeaderValue |
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{ |
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public const FOLDING = "\r\n "; |
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/** |
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* @var string |
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*/ |
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private $encoded; |
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/** |
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* @var string |
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*/ |
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private $encoding = '7bit'; |
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/** |
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* @param string $value |
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* @param bool $phrase |
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*/ |
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public function __construct(string $value, bool $phrase = false) |
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{ |
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if ($phrase === true) { |
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$encoded = new OptimalTransferEncodedPhraseStream($value, 68, self::FOLDING); |
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$this->encoding = $encoded->getMetadata(['transfer-encoding'])['transfer-encoding']; |
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} else { |
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$encoded = new OptimalTransferEncodedTextStream($value, 68, self::FOLDING); |
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$this->encoding = $encoded->getMetadata(['transfer-encoding'])['transfer-encoding']; |
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} |
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switch ($this->encoding) { |
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case '7bit': |
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case '8bit': |
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$this->encoded = (string) $encoded; |
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break; |
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case 'base64': |
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$this->encoded = \sprintf('=?%s?B?%s?=', 'UTF-8', (string) $encoded); |
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break; |
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case 'quoted-printable': |
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$this->encoded = \str_replace( |
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'=' . self::FOLDING, |
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'?=' . self::FOLDING . '=?UTF-8?Q?', |
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\sprintf( |
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'=?%s?Q?%s?=', |
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'UTF-8', |
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\preg_replace( |
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['/\?/', '/_/', '/(?<!^) /m'], |
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['=3F', '=5F', '_'], |
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(string) $encoded |
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) |
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) |
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); |
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break; |
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default: |
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throw new \UnexpectedValueException('Unknown encoding ' . $this->encoding); |
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} |
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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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return $this->encoded; |
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} |
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/** |
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* @return string |
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*/ |
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public function getEncoding(): string |
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{ |
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return $this->encoding; |
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} |
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/** |
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* @param string $value |
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* @return OptimalEncodedHeaderValue |
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*/ |
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public static function forPhrase(string $value): self |
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{ |
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return new self($value, true); |
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} |
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} |
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genkgo /
mail
