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<?php |
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namespace Swis\Laravel\StaticRequestCache; |
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use Illuminate\Filesystem\Filesystem; |
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use Illuminate\Http\Request; |
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use Illuminate\Support\Str; |
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use Swis\Laravel\StaticRequestCache\Exceptions\CacheException; |
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use Symfony\Component\HttpFoundation\Response; |
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class StaticRequestCache |
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{ |
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/** |
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* @var \Illuminate\Filesystem\Filesystem |
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*/ |
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protected $files; |
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/** |
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* @var bool |
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*/ |
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protected $enabled; |
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/** |
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* @param \Illuminate\Filesystem\Filesystem $files |
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*/ |
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public function __construct(Filesystem $files) |
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{ |
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$this->files = $files; |
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if (config('static-html-cache.enabled') === 'debug') { |
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$this->enabled = !config('app.debug'); |
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} else { |
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$this->enabled = config('static-html-cache.enabled'); |
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} |
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} |
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/** |
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* @param \Illuminate\Http\Request $request |
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* @param \Symfony\Component\HttpFoundation\Response $response |
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* |
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* @return bool |
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*/ |
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public function shouldStoreResponse(Request $request, Response $response): bool |
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{ |
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$isGETRequest = $request->getMethod() === 'GET'; |
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$hasNoParams = count($request->input()) === 0; |
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$contentTypeData = $this->getContentTypeFromResponse($response); |
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$hasIndexPhpInRequestUri = Str::contains($request->getRequestUri(), 'index.php'); |
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$isCachableMimeType = false; |
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foreach ($contentTypeData as $contentType) { |
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$isCachableMimeType = in_array($contentType, config('static-html-cache.cachable_mimetypes'), true) !== false; |
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if ($isCachableMimeType === true) { |
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break; |
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} |
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} |
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$nonCacheableCacheControlHeaders = config('static-html-cache.non_cacheable_cache_control_values', []); |
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$hasDisablingCacheHeaders = false; |
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foreach ($nonCacheableCacheControlHeaders as $nonCacheableCacheControlHeader) { |
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if ($response->headers->hasCacheControlDirective($nonCacheableCacheControlHeader)) { |
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$hasDisablingCacheHeaders = true; |
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break; |
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} |
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} |
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return $this->enabled |
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&& $response->isOk() |
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&& !$hasDisablingCacheHeaders |
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&& !$hasIndexPhpInRequestUri |
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&& $isGETRequest |
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&& $hasNoParams |
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&& $isCachableMimeType; |
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} |
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/** |
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* @param \Illuminate\Http\Request $request |
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* @param \Symfony\Component\HttpFoundation\Response $response |
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* |
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* @return string |
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*/ |
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private function getFilename(Request $request, Response $response): string |
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{ |
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$request_uri = trim($request->getRequestUri(), '/'); |
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$request_uri = empty($request_uri) ? '' : '/'.$request_uri; |
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$contentType = $this->getContentTypeFromResponse($response); |
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$filename = public_path(config('static-html-cache.cache_path_prefix').$request_uri); |
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if (in_array('text/html', $contentType, true)) { |
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$filename .= '/index.html'; |
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} |
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return $filename; |
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} |
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/** |
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* @param string $filename |
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*/ |
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private function ensureStorageDirectory(string $filename): void |
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{ |
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$path = $this->files->dirname($filename); |
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$this->files->makeDirectory($path, 0777, true, true); |
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if (!$this->files->isDirectory($path)) { |
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throw new CacheException(sprintf('Directory "%s" could not be created', $path)); |
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} |
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} |
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/** |
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* @param \Symfony\Component\HttpFoundation\Response $response |
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* |
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* @return array |
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*/ |
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private function getContentTypeFromResponse(Response $response): array |
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{ |
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return explode(';', $response->headers->get('content-type')); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isEnabled(): bool |
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{ |
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return $this->enabled; |
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} |
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public function disable(): void |
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{ |
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$this->enabled = false; |
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} |
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/** |
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* @param \Illuminate\Http\Request $request |
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* @param \Symfony\Component\HttpFoundation\Response $response |
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*/ |
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public function store(Request $request, Response $response): void |
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{ |
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$filename = $this->getFilename($request, $response); |
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$this->ensureStorageDirectory($filename); |
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$file = $response->getContent(); |
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if ($this->files->put($filename, $file) === false) { |
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throw new CacheException(sprintf('File "%s" could not be created', $filename)); |
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} |
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} |
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} |
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swisnl /
laravel-static-request-cache
