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<?php |
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declare(strict_types=1); |
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namespace Courier; |
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use Courier\Exceptions\TransmissionException; |
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use Courier\Exceptions\UnsupportedContentException; |
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use PhpEmail\Address; |
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use PhpEmail\Content\Contracts\SimpleContent; |
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use PhpEmail\Content\Contracts\TemplatedContent; |
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use PhpEmail\Email; |
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/** |
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* A courier that leverages the built-in `mail` function to deliver emails. |
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* |
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* This Courier is meant as a drop-in testing option for local development. The courier does not implement template |
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* rendering, but will still deliver templated emails, describing the template ID and data provided. This functionally |
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* can be extended by overwriting or wrapping the class, if desired. |
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*/ |
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class MailCourier implements Courier |
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{ |
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/** |
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* @param Email $email |
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* |
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* @throws TransmissionException |
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* @throws UnsupportedContentException |
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* |
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* @return void |
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*/ |
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public function deliver(Email $email): void |
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{ |
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if (!$this->supportsContent($email)) { |
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throw new UnsupportedContentException($email->getContent()); |
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} |
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$boundary = '==Multipart_Boundary_' . bin2hex(random_bytes(8)); |
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$headers = [ |
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'From: ' . $email->getFrom()->toRfc2822(), |
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'Content-Type: multipart/alternative;boundary="' . $boundary . '"', |
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]; |
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if ($email->getCcRecipients()) { |
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$headers[] = 'Cc: ' . $this->mapAddresses($email->getCcRecipients()); |
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} |
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if ($email->getBccRecipients()) { |
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$headers[] = 'Bcc: ' . $this->mapAddresses($email->getBccRecipients()); |
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} |
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if ($email->getReplyTos()) { |
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$headers[] = 'Reply-To: ' . $this->mapAddresses($email->getReplyTos()); |
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} |
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if ($email->getHeaders()) { |
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foreach ($email->getHeaders() as $header) { |
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$headers[] = sprintf('%s: %s', $header->getField(), $header->getValue()); |
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} |
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} |
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$result = mail( |
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$this->mapAddresses($email->getToRecipients()), |
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$email->getSubject() ?? '', |
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"--{$boundary}\r\n" . implode("\r\n--{$boundary}\r\n", array_merge($this->buildContent($email), $this->buildAttachments($email))), |
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implode("\r\n", $headers) |
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); |
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if (!$result) { |
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throw new TransmissionException(0, new \Exception(error_get_last()['message'] ?? 'Unknown mail error')); |
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} |
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} |
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public function supportsContent(Email $email): bool |
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{ |
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foreach ($this->supportedContent() as $type) { |
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if ($email->getContent() instanceof $type) { |
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return true; |
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} |
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} |
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return false; |
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} |
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protected function supportedContent(): array |
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{ |
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return [ |
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SimpleContent::class, |
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TemplatedContent::class, |
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]; |
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} |
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/** |
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* Build the MIME parts for the content. |
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* |
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* @param Email $email |
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* |
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* @return array |
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*/ |
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protected function buildContent(Email $email): array |
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{ |
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$content = $email->getContent(); |
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if ($content instanceof SimpleContent) { |
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return $this->buildSimpleContent($content); |
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} elseif ($content instanceof TemplatedContent) { |
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return $this->buildTemplatedContent($content); |
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} |
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throw new UnsupportedContentException($content); |
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} |
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protected function buildSimpleContent(SimpleContent $content): array |
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{ |
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$parts = []; |
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if ($content->getText()) { |
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$parts[] = <<<MIME |
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Content-Type: text/plain; {$content->getText()->getCharset()} |
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{$content->getText()->getBody()} |
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MIME; |
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} |
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if ($content->getHtml()) { |
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$parts[] = <<<MIME |
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Content-Type: text/html; {$content->getHtml()->getCharset()} |
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{$content->getHtml()->getBody()} |
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MIME; |
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} |
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return $parts; |
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} |
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/** |
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* Build the text representation of the template ID and data. |
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* |
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* @param TemplatedContent $content |
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* |
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* @return array |
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*/ |
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protected function buildTemplatedContent(TemplatedContent $content): array |
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{ |
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$parts = []; |
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$templateData = json_encode($content->getTemplateData(), JSON_PRETTY_PRINT); |
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$parts[] = <<<MIME |
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Content-Type: text/plain; utf-8 |
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Template ID: {$content->getTemplateId()} |
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Template Data: |
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{$templateData} |
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MIME; |
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return $parts; |
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} |
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private function mapAddresses(array $addresses): string |
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{ |
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return implode(', ', array_map(function (Address $address) { |
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return $address->toRfc2822(); |
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}, $addresses)); |
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} |
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/** |
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* Create the MIME parts for each of the attachments. |
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* |
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* @param Email $email |
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* |
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* @return array |
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*/ |
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private function buildAttachments(Email $email): array |
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{ |
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$parts = []; |
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foreach ($email->getAttachments() as $attachment) { |
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$content = chunk_split($attachment->getBase64Content()); |
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$contentType = $attachment->getContentType(); |
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if ($attachment->getCharset()) { |
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$contentType .= ';' . $attachment->getCharset(); |
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} |
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$parts[] = <<<MIME |
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Content-Type: {$contentType} |
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Content-Transfer-Encoding: base64 |
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Content-Disposition: attachment; filename="{$attachment->getName()}" |
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$content |
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MIME; |
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} |
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foreach ($email->getEmbedded() as $attachment) { |
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$content = chunk_split($attachment->getBase64Content()); |
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$contentType = $attachment->getContentType(); |
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if ($attachment->getCharset()) { |
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$contentType .= ';' . $attachment->getCharset(); |
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} |
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$parts[] = <<<MIME |
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Content-Type: {$contentType} |
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Content-Transfer-Encoding: base64 |
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Content-Disposition: inline; filename="{$attachment->getName()}" |
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Content-ID: <{$attachment->getContentId()}> |
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$content |
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MIME; |
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} |
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return $parts; |
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} |
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} |
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quartzy /
courier
