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<?php |
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|
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.com> |
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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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|
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namespace Symfony\Component\Mime\Encoder; |
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|
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/** |
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* An IDN email address encoder. |
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* |
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* Encodes the domain part of an address using IDN. This is compatible will all |
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* SMTP servers. |
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* |
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* Note: It leaves the local part as is. In case there are non-ASCII characters |
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* in the local part then it depends on the SMTP Server if this is supported. |
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* |
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* @author Christian Schmidt |
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*/ |
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final class IdnAddressEncoder implements AddressEncoderInterface |
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{ |
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/** |
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* Encodes the domain part of an address using IDN. |
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*/ |
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public function encodeString(string $address): string |
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{ |
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$i = strrpos($address, '@'); |
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if (false !== $i) { |
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$local = substr($address, 0, $i); |
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$domain = substr($address, $i + 1); |
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|
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if (preg_match('/[^\x00-\x7F]/', $domain)) { |
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$address = sprintf('%s@%s', $local, idn_to_ascii($domain, \IDNA_DEFAULT | \IDNA_USE_STD3_RULES | \IDNA_CHECK_BIDI | \IDNA_CHECK_CONTEXTJ | \IDNA_NONTRANSITIONAL_TO_ASCII, \INTL_IDNA_VARIANT_UTS46)); |
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} |
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} |
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|
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return $address; |
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} |
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} |
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