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<?php namespace crocodicstudio\crudbooster\controllers; |
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use File; |
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use Image; |
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use Request; |
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use Response; |
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use Storage; |
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class FileController extends Controller |
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{ |
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public function getPreview($one, $two = null, $three = null, $four = null, $five = null) |
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{ |
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if ($two) { |
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$fullFilePath = 'uploads'.DIRECTORY_SEPARATOR.$one.DIRECTORY_SEPARATOR.$two; |
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$filename = $two; |
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if ($three) { |
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$fullFilePath = 'uploads'.DIRECTORY_SEPARATOR.$one.DIRECTORY_SEPARATOR.$two.DIRECTORY_SEPARATOR.$three; |
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$filename = $three; |
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if ($four) { |
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$fullFilePath = 'uploads'.DIRECTORY_SEPARATOR.$one.DIRECTORY_SEPARATOR.$two.DIRECTORY_SEPARATOR.$three.DIRECTORY_SEPARATOR.$four; |
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$filename = $four; |
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if ($five) { |
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$fullFilePath = 'uploads'.DIRECTORY_SEPARATOR.$one.DIRECTORY_SEPARATOR.$two.DIRECTORY_SEPARATOR.$three.DIRECTORY_SEPARATOR.$four.DIRECTORY_SEPARATOR.$five; |
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$filename = $five; |
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} |
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} |
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} |
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} else { |
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$fullFilePath = 'uploads'.DIRECTORY_SEPARATOR.$one; |
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$filename = $one; |
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} |
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$fullStoragePath = storage_path('app/'.$fullFilePath); |
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$lifetime = 31556926; // One year in seconds |
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if (! Storage::exists($fullFilePath)) { |
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abort(404); |
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} |
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$handler = new \Symfony\Component\HttpFoundation\File\File(storage_path('app/'.$fullFilePath)); |
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$extension = strtolower(File::extension($fullStoragePath)); |
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$images_ext = config('crudbooster.IMAGE_EXTENSIONS', 'jpg,png,gif,bmp'); |
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$images_ext = explode(',', $images_ext); |
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$imageFileSize = 0; |
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if (in_array($extension, $images_ext)) { |
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$defaultThumbnail = config('crudbooster.DEFAULT_THUMBNAIL_WIDTH'); |
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if ($defaultThumbnail != 0) { |
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$w = Request::get('w') ?: $defaultThumbnail; |
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$h = Request::get('h') ?: $w; |
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} else { |
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$w = Request::get('w'); |
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$h = Request::get('h') ?: $w; |
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} |
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$imgRaw = Image::cache(function ($image) use ($fullStoragePath, $w, $h) { |
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$im = $image->make($fullStoragePath); |
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if ($w) { |
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if (! $h) { |
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$im->fit($w); |
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} else { |
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$im->fit($w, $h); |
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} |
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} |
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return $im; |
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}); |
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$imageFileSize = mb_strlen($imgRaw, '8bit') ?: 0; |
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} |
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/** |
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* Prepare some header variables |
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*/ |
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$file_time = $handler->getMTime(); // Get the last modified time for the file (Unix timestamp) |
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$header_content_type = $handler->getMimeType(); |
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$header_content_length = ($imageFileSize) ?: $handler->getSize(); |
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$header_etag = md5($file_time.$fullFilePath); |
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$header_last_modified = gmdate('r', $file_time); |
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$header_expires = gmdate('r', $file_time + $lifetime); |
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$headers = [ |
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'Content-Disposition' => 'inline; filename="'.$filename.'"', |
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'Last-Modified' => $header_last_modified, |
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'Cache-Control' => 'must-revalidate', |
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'Expires' => $header_expires, |
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'Pragma' => 'public', |
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'Etag' => $header_etag, |
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]; |
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/** |
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* Is the resource cached? |
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*/ |
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$h1 = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && $_SERVER['HTTP_IF_MODIFIED_SINCE'] == $header_last_modified; |
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$h2 = isset($_SERVER['HTTP_IF_NONE_MATCH']) && str_replace('"', '', stripslashes($_SERVER['HTTP_IF_NONE_MATCH'])) == $header_etag; |
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$headers = array_merge($headers, [ |
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'Content-Type' => $header_content_type, |
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'Content-Length' => $header_content_length, |
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]); |
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if (in_array($extension, $images_ext)) { |
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if ($h1 || $h2) { |
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return Response::make('', 304, $headers); // File (image) is cached by the browser, so we don't have to send it again |
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} else { |
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return Response::make($imgRaw, 200, $headers); |
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} |
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} else { |
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if (Request::get('download')) { |
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return Response::download(storage_path('app/'.$fullFilePath), $filename, $headers); |
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} else { |
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return Response::file(storage_path('app/'.$fullFilePath), $headers); |
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} |
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} |
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} |
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} |
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