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<?php |
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/** |
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* GravatarExtension.php |
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* |
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* @copyright More in license.md |
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* @license https://www.ipublikuj.eu |
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* @author Adam Kadlec <[email protected]> |
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* @package iPublikuj:Gravatar! |
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* @subpackage Application |
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* @since 1.0.0 |
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* |
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* @date 02.03.15 |
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*/ |
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declare(strict_types = 1); |
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namespace IPub\Gravatar\Application; |
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use Nette; |
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use Nette\Utils; |
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use Nette\Http; |
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use IPub\Gravatar; |
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use IPub\Gravatar\Exceptions; |
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/** |
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* Gravatar image response |
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* |
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* @package iPublikuj:Gravatar! |
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* @subpackage Application |
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* |
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* @author Adam Kadlec <[email protected]> |
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*/ |
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final class GravatarResponse implements Nette\Application\IResponse |
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{ |
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/** |
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* Implement nette smart magic |
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*/ |
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use Nette\SmartObject; |
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/** |
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* @var Utils\Image |
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*/ |
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private $image; |
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/** |
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* @var string |
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*/ |
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private $type; |
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/** |
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* @param string $email |
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* @param int $size 1-512 |
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* |
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* @throws Utils\ImageException |
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*/ |
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public function __construct(string $email, int $size) |
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{ |
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// Set user email address |
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if (!Utils\Validators::isEmail($email)) { |
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throw new Exceptions\InvalidArgumentException('Inserted email is not valid email address'); |
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} |
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if ($size < 1 || $size > 512) { |
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throw new Exceptions\InvalidArgumentException(sprintf('Unsupported size "%s", Gravatar expects "1 - 512".', $size)); |
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} |
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$path = $this->createUrl($email, $size, '404'); |
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if (!$sock = @fsockopen('gravatar.com', 80, $errorNo, $error)) { |
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return NULL; |
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} |
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fputs($sock, "HEAD " . $path . " HTTP/1.0\r\n\r\n"); |
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$header = fgets($sock, 128); |
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fclose($sock); |
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if (strpos($header, '404')) { |
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throw new Exceptions\InvalidStateException('Gravatar image could not be loaded from the server.'); |
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} |
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$path = $this->createUrl($email, $size); |
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$img = @file_get_contents($path); |
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$this->image = Utils\Image::fromString($img); |
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$this->type = Utils\Image::JPEG; |
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} |
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/** |
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* Returns Nette\Utils\Image instance |
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* |
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* @return Utils\Image |
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*/ |
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public function getImage() : Utils\Image |
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{ |
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return $this->image; |
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} |
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/** |
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* Returns the type of a image |
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* |
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* @return string |
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*/ |
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public function getType() : string |
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{ |
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return $this->type; |
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} |
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/** |
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* Sends response to output |
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* |
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* @param Http\IRequest $httpRequest |
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* @param Http\IResponse $httpResponse |
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* |
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* @return void |
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*/ |
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public function send(Http\IRequest $httpRequest, Http\IResponse $httpResponse) : void |
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{ |
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echo $this->image->send($this->type, 85); |
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} |
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/** |
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* @param string $email |
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* @param int $size |
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* @param string $defaultImage |
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* |
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* @return string |
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*/ |
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private function createUrl(string $email, int $size, string $defaultImage = NULL) : string |
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{ |
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// Tack the email hash onto the end. |
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$emailHash = hash('md5', strtolower(trim($email))); |
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// Start building the URL, and deciding if we're doing this via HTTPS or HTTP. |
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$url = new Http\Url(Gravatar\Gravatar::HTTPS_URL . $emailHash); |
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// Time to figure out our request params |
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$params = []; |
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$params['s'] = $size; |
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$params['r'] = 'g'; |
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$params['d'] = $defaultImage ?: 'mm'; |
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// Add query params |
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$url->appendQuery($params); |
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// And we're done |
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return $url->getAbsoluteUrl(); |
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} |
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} |
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