74 lines
2.1 KiB
PHP
74 lines
2.1 KiB
PHP
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<?php
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/*
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* Core PHP Framework
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*
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* Licensed under the European Union Public Licence (EUPL) v1.2.
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* See LICENSE file for details.
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*/
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declare(strict_types=1);
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namespace Core\Seo\Controllers;
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use Core\Front\Controller;
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use Core\Seo\Services\ServiceOgImageService;
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use Illuminate\Http\Response;
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use Illuminate\Support\Facades\Storage;
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/**
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* OG Image Controller
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*
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* Serves dynamically generated Open Graph images for service pages.
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* Images are cached to disk and served with long cache headers.
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*/
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class OgImageController extends Controller
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{
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/**
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* Cache TTL in seconds (30 days).
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*/
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private const CACHE_TTL = 2592000;
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/**
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* Serve an OG image for a service page.
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*
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* Generates the image on first request, then serves from cache.
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* Returns 404 for invalid service names.
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*/
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public function service(string $service, ServiceOgImageService $ogService): Response
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{
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// Remove .png extension if present
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$service = preg_replace('/\.png$/i', '', $service);
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$service = strtolower($service);
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// Validate service name
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if (! $ogService->isValidService($service)) {
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return response('Not Found', 404);
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}
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// Generate if doesn't exist
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if (! $ogService->exists($service)) {
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$ogService->generate($service);
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}
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// Get the image content
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$filename = "og-images/services/{$service}.png";
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if (! Storage::disk('public')->exists($filename)) {
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return response('Not Found', 404);
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}
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$content = Storage::disk('public')->get($filename);
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$lastModified = Storage::disk('public')->lastModified($filename);
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return response($content, 200, [
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'Content-Type' => 'image/png',
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'Content-Length' => strlen($content),
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'Cache-Control' => 'public, max-age='.self::CACHE_TTL.', immutable',
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'Last-Modified' => gmdate('D, d M Y H:i:s', $lastModified).' GMT',
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'ETag' => '"'.md5($content).'"',
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'X-Content-Type-Options' => 'nosniff',
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]);
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}
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}
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