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<?php |
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namespace Kodus\Mail\SMTP; |
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use Kodus\Mail\MailService; |
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use Kodus\Mail\Message; |
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use Kodus\Mail\MIMEWriter; |
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use Kodus\Mail\SMTP\Authenticator\NoAuthenticator; |
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/** |
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* This Mail Service implementation delivers Messages directly to an SMTP server. |
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* |
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* It will block the script while connecting and delivering the Message. |
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*/ |
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class SMTPMailService implements MailService |
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{ |
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/** |
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* @var SMTPConnector |
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*/ |
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private $connector; |
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/** |
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* @var SMTPAuthenticator |
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*/ |
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protected $authenticator; |
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/** |
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* @var string |
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*/ |
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protected $client_domain; |
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/** |
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* @var SMTPClient|null |
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*/ |
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private $client; |
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/** |
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* @param SMTPConnector $connector provides the SMTP connection |
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* @param SMTPAuthenticator|null $authenticator performs SMTP authentication (or NULL to use `NoAuthenticator`) |
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* @param string $client_domain client domain-name (provided in handshakes when connecting) |
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*/ |
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public function __construct(SMTPConnector $connector, ?SMTPAuthenticator $authenticator, string $client_domain) |
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{ |
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$this->connector = $connector; |
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$this->authenticator = $authenticator ?: new NoAuthenticator(); |
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$this->client_domain = $client_domain; |
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} |
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public function send(Message $message): void |
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{ |
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$this->getClient()->sendMail( |
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$this->getSender($message), |
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$this->getRecipients($message), |
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function ($socket) use ($message) { |
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$writer = new MIMEWriter($socket); |
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$writer->writeMessage($message); |
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} |
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); |
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} |
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/** |
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* Internally disconnect the SMTP Client. |
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* |
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* Long-running services may wish to disconnect the SMTP client after sending a batch |
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* of Messages, to avoid timeouts. |
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*/ |
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public function disconnect(): void |
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{ |
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// NOTE: this will cause the SMTP Client instance will fall out of scope, which |
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// will trigger it's destructor, which will send QUIT and close the socket. |
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$this->client = null; |
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} |
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/** |
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* Connect and authenticate SMTP Client (if not already connected) |
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* |
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* @return SMTPClient |
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*/ |
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protected function getClient(): SMTPClient |
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{ |
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if (! isset($this->client)) { |
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$this->client = $this->connector->connect($this->client_domain); |
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$this->authenticator->authenticate($this->client); |
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} |
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return $this->client; |
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} |
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/** |
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* Determine the sender e-mail address from the "Sender" or first "From" field of the Message |
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* |
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* @param Message $message |
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* |
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* @return string sender e-mail address |
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*/ |
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private function getSender(Message $message): string |
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{ |
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$sender = $message->getSender(); |
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if ($sender) { |
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return $sender->getEmail(); |
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} |
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$from = $message->getFrom(); |
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return $from[0]->getEmail(); |
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} |
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/** |
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* Extract recipient e-mail addresses from the "To", "CC" and "BCC" fields of the Message |
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* |
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* @param Message $message |
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* |
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* @return string[] list of recipient e-mail addresses |
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*/ |
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private function getRecipients(Message $message): array |
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{ |
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$recipients = []; |
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foreach ($message->getTo() as $recipient) { |
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$recipients[] = $recipient->getEmail(); |
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} |
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foreach ($message->getCC() as $recipient) { |
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$recipients[] = $recipient->getEmail(); |
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} |
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foreach ($message->getBCC() as $recipient) { |
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$recipients[] = $recipient->getEmail(); |
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} |
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return $recipients; |
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} |
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} |
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kodus /
mail
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