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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 Notifier\Channel\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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1 |
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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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$this->buildMailHeaders() |
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); |
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if (!$status) { |
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$error = error_get_last(); |
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throw new SendingMessageFailed($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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$toList = []; |
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foreach ($this->message->to as $to) { |
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[$email, $name] = $to; |
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$toList[] = (null !== $name) ? $name . ' <' . $email . '>' : $email; |
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} |
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return implode(',', $toList); |
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} |
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private function buildSubject(): string |
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{ |
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return $this->message->subject; |
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} |
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private function buildMessage(): string |
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{ |
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return wordwrap($this->message->body, self::MESSAGE_LINE_CHARACTERS_LIMIT); |
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} |
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private function buildMailHeaders(): string |
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{ |
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$headers = 'Content-type: ' . $this->message->contentType . '; charset=utf-8' . "\r\n"; |
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if ($this->message->contentType === 'text/html') { |
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$headers .= "MIME-Version: 1.0\r\n"; |
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} |
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if (null !== $this->message->from) { |
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$headers .= 'From: ' . $this->message->from[0] . "\r\n"; |
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} |
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return $headers; |
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} |
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} |
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nikolaposa /
notifier
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.