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<?php |
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declare(strict_types=1); |
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namespace PhpEmail\Attachment; |
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use PhpEmail\Attachment; |
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use PhpEmail\Validate; |
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/** |
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* Attach a file by URL. This requires that the `allow_url_fopen` be enabled. |
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*/ |
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class UrlAttachment extends AttachmentWithHeaders |
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{ |
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/** |
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* @var string |
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*/ |
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private $url; |
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/** |
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* @var string|null |
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*/ |
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private $content = null; |
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/** |
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* @param string $url |
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* @param null|string $name If null, the class will determine a name for the attachment based on the URL. |
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* @param null|string $contentId |
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* @param null|string $contentType |
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* @param null|string $charset |
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*/ |
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public function __construct( |
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string $url, |
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?string $name = null, |
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?string $contentId = null, |
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?string $contentType = null, |
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string $charset = null |
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) { |
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Validate::that() |
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->isUrl('url', $url) |
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->now(); |
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$this->url = $url; |
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$this->name = $name ?: urldecode(basename(parse_url($url, PHP_URL_PATH))); |
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$this->contentId = $contentId; |
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$this->contentType = $contentType; |
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$this->charset = $charset; |
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} |
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/** |
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* A static constructor for the UrlAttachment constructor. |
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* |
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* @param string $url |
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* @param null|string $name If null, the class will determine a name for the attachment based on the URL. |
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* @param null|string $contentId |
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* @param null|string $contentType |
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* @param null|string $charset |
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* |
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* @return UrlAttachment |
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*/ |
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public static function fromUrl( |
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string $url, |
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?string $name = null, |
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?string $contentId = null, |
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?string $contentType = null, |
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string $charset = null |
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): UrlAttachment { |
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return new self($url, $name, $contentId, $contentType, $charset); |
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} |
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/** |
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* @return string |
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*/ |
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public function getUrl(): string |
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{ |
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return $this->url; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getContent(): string |
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{ |
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if ($this->content === null) { |
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$this->content = file_get_contents($this->url); |
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} |
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return $this->content; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getBase64Content(): string |
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{ |
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return base64_encode($this->getContent()); |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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return json_encode([ |
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'url' => $this->url, |
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'name' => $this->name, |
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'contentId' => $this->contentId, |
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]); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function determineContentType(): string |
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{ |
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$contentType = get_headers($this->url, 1)['Content-Type'] ?? null; |
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1 |
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if (!$contentType) { |
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return 'application/octet-stream'; |
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} else { |
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return explode(';', $contentType)[0]; |
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} |
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} |
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} |
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quartzy /
php-email
