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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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use Symfony\Component\Mime\Exception\RuntimeException; |
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|
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/** |
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* @author Fabien Potencier <fabien@symfony.com> |
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*/ |
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final class Base64ContentEncoder extends Base64Encoder implements ContentEncoderInterface |
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{ |
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public function encodeByteStream($stream, int $maxLineLength = 0): iterable |
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{ |
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if (!\is_resource($stream)) { |
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throw new \TypeError(sprintf('Method "%s" takes a stream as a first argument.', __METHOD__)); |
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} |
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|
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$filter = stream_filter_append($stream, 'convert.base64-encode', \STREAM_FILTER_READ, [ |
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'line-length' => 0 >= $maxLineLength || 76 < $maxLineLength ? 76 : $maxLineLength, |
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'line-break-chars' => "\r\n", |
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]); |
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if (!\is_resource($filter)) { |
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throw new RuntimeException('Unable to set the base64 content encoder to the filter.'); |
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} |
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|
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while (!feof($stream)) { |
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yield fread($stream, 16372); |
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} |
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stream_filter_remove($filter); |
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} |
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|
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public function getName(): string |
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{ |
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return 'base64'; |
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} |
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} |
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|
