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<?php |
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declare(strict_types=1); |
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namespace Notifier\Channel\Email; |
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use ErrorException; |
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use Notifier\Exception\SendingMessageFailed; |
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final class SimpleMailer implements Mailer |
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{ |
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private const MESSAGE_LINE_CHARACTERS_LIMIT = 70; |
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/** @var callable|null */ |
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private $handler; |
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/** @var EmailMessage */ |
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private $message; |
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public function __construct(callable $handler = null) |
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{ |
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$this->handler = $handler; |
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} |
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public function send(EmailMessage $message): void |
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{ |
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$this->message = $message; |
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$status = call_user_func( |
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$this->handler ?? 'mail', |
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$this->buildTo(), |
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$this->buildSubject(), |
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$this->buildMessage(), |
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$this->buildHeaders() |
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); |
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if (!$status) { |
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$error = error_get_last(); |
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throw SendingMessageFailed::dueTo(new ErrorException($error['message'] ?? 'Email has not been accepted for delivery')); |
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} |
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} |
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private function buildTo(): string |
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{ |
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return implode(', ', $this->message->getTo()); |
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} |
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private function buildSubject(): string |
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{ |
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return $this->message->getSubject(); |
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} |
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private function buildMessage(): string |
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{ |
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return wordwrap($this->message->getBody(), self::MESSAGE_LINE_CHARACTERS_LIMIT); |
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} |
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private function buildHeaders(): string |
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{ |
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$headers = array_map(function (string $name, $value) { |
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if (is_array($value)) { |
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$value = implode(', ', $value); |
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} |
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return "$name: $value"; |
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}, array_keys($this->message->getHeaders()), $this->message->getHeaders()); |
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return implode("\r\n", $headers); |
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} |
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} |
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nikolaposa /
notifier
