94 lines
2.5 KiB
PHP
94 lines
2.5 KiB
PHP
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<?php
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namespace Szurubooru\Services;
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class FileService
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{
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private $dataDirectory;
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private $httpHelper;
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public function __construct($dataDirectory, \Szurubooru\Helpers\HttpHelper $httpHelper)
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{
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$this->dataDirectory = $dataDirectory;
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$this->httpHelper = $httpHelper;
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}
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public function serve($source, $options = [])
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{
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$finalSource = $this->getFullPath($source);
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$daysToLive = isset($options->daysToLive)
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? $options->daysToLive
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: 7;
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$secondsToLive = $daysToLive * 24 * 60 * 60;
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$lastModified = filemtime($finalSource);
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$eTag = md5(file_get_contents($finalSource)); //todo: faster
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$ifModifiedSince = isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])
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? $_SERVER['HTTP_IF_MODIFIED_SINCE']
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: false;
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$eTagHeader = isset($_SERVER['HTTP_IF_NONE_MATCH'])
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? trim($_SERVER['HTTP_IF_NONE_MATCH'], "\" \t\r\n")
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: false;
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$this->httpHelper->setHeader('ETag', '"' . $eTag . '"');
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$this->httpHelper->setHeader('Last-Modified', gmdate('D, d M Y H:i:s \G\M\T', $lastModified));
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$this->httpHelper->setHeader('Pragma', 'public');
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$this->httpHelper->setHeader('Cache-Control', 'public, max-age=' . $secondsToLive);
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$this->httpHelper->setHeader('Expires', gmdate('D, d M Y H:i:s \G\M\T', time() + $secondsToLive));
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if (isset($options->customFileName))
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{
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$this->httpHelper->setHeader('Content-Disposition', 'inline; filename="' . $options->customFileName . '"');
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}
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if (isset($options->mimeType))
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{
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$this->httpHelper->setHeader('Content-Type', $options->mimeType);
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}
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else
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{
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$this->httpHelper->setHeader('Content-Type', mime_content_type($finalSource));
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}
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if (strtotime($ifModifiedSince) == $lastModified or $eTagHeader == $eTag)
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{
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$this->httpHelper->setResponseCode(304);
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}
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else
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{
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$this->httpHelper->setResponseCode(200);
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readfile($finalSource);
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}
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exit;
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}
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public function exists($source)
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{
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$finalSource = $this->getFullPath($source);
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return $source and file_exists($finalSource);
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}
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public function delete($source)
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{
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$finalSource = $this->getFullPath($source);
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if (file_exists($finalSource))
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unlink($finalSource);
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}
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public function saveFromBase64($base64string, $destination)
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{
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$finalDestination = $this->getFullPath($destination);
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$commaPosition = strpos($base64string, ',');
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if ($commaPosition !== null)
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$base64string = substr($base64string, $commaPosition + 1);
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$data = base64_decode($base64string);
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file_put_contents($finalDestination, $data);
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}
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public function getFullPath($destination)
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{
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return $this->dataDirectory . DIRECTORY_SEPARATOR . $destination;
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}
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}
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