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<?php |
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/** |
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* SEOmatic plugin for Craft CMS 3.x |
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* |
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* A turnkey SEO implementation for Craft CMS that is comprehensive, powerful, |
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* and flexible |
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* |
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* @link https://nystudio107.com |
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* @copyright Copyright (c) 2017 nystudio107 |
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*/ |
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namespace nystudio107\seomatic\controllers; |
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use Craft; |
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use craft\helpers\FileHelper; |
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use craft\web\Controller; |
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use nystudio107\seomatic\helpers\UrlHelper; |
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use nystudio107\seomatic\Seomatic; |
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use yii\web\HttpException; |
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use yii\web\NotFoundHttpException; |
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use yii\web\Response; |
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use yii\web\ServerErrorHttpException; |
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/** |
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* @author nystudio107 |
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* @package Seomatic |
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* @since 3.0.0 |
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*/ |
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class FileController extends Controller |
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{ |
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// Properties |
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// ========================================================================= |
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/** |
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* @inheritdoc |
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*/ |
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protected $allowAnonymous = [ |
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'seo-file-link', |
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]; |
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// Public Methods |
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// ========================================================================= |
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/** |
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* @inheritDoc |
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*/ |
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public function beforeAction($action) |
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{ |
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if (!Seomatic::$settings->enableSeoFileLinkEndpoint) { |
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$this->allowAnonymous = false; |
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} |
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return parent::beforeAction($action); |
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} |
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/** |
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* Allow setting the X-Robots-Tag and Link headers on static files as per: |
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* https://moz.com/blog/how-to-advanced-relcanonical-http-headers |
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* |
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* @param $url |
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* @param string $robots |
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* @param string $canonical |
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* @param bool $inline |
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* @param string $fileName |
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* |
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* @return Response|\yii\console\Response |
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* @throws HttpException |
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* @throws NotFoundHttpException |
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*/ |
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public function actionSeoFileLink($url, $robots = '', $canonical = '', $inline = true, $fileName = '') |
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{ |
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$url = base64_decode($url); |
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$robots = base64_decode($robots); |
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$canonical = base64_decode($canonical); |
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$url = UrlHelper::absoluteUrlWithProtocol($url); |
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$contents = file_get_contents($url); |
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$response = Craft::$app->getResponse(); |
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if ($contents) { |
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// Add the X-Robots-Tag header |
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if (!empty($robots)) { |
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$headerValue = $robots; |
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$response->headers->add('X-Robots-Tag', $headerValue); |
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} |
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// Add the Link header |
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if (!empty($canonical)) { |
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$headerValue = '<' . $canonical . '>; rel="canonical"'; |
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$response->headers->add('Link', $headerValue); |
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} |
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// Ensure the file type is allowed |
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// ref: https://craftcms.com/docs/3.x/config/config-settings.html#allowedfileextensions |
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$allowedExtensions = Craft::$app->getConfig()->getGeneral()->allowedFileExtensions; |
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if (($ext = pathinfo($fileName, PATHINFO_EXTENSION)) !== '') { |
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$ext = strtolower($ext); |
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} |
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if ($ext === '' || $ext === 'svg' || !in_array($ext, $allowedExtensions, true)) { |
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throw new ServerErrorHttpException(Craft::t('seomatic', 'File format not allowed.')); |
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} |
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// Send the file as a stream, so it can exist anywhere |
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$response->sendContentAsFile( |
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$contents, |
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$fileName, |
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[ |
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'inline' => $inline, |
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'mimeType' => FileHelper::getMimeTypeByExtension($fileName), |
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] |
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); |
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} else { |
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throw new NotFoundHttpException(Craft::t('seomatic', 'File not found.')); |
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} |
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return $response; |
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} |
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} |
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nystudio107 /
craft-seomatic
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