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<?php |
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/** |
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* ownCloud - Documents App |
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* |
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* @author Victor Dubiniuk |
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* @copyright 2014 Victor Dubiniuk [email protected] |
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* |
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* This file is licensed under the Affero General Public License version 3 or |
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* later. |
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*/ |
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namespace OCA\Documents; |
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use OC\Files\Filesystem; |
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use \OCP\AppFramework\Http; |
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use \OCP\IRequest; |
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use \OC\Files\View; |
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class DownloadResponse extends \OCP\AppFramework\Http\Response { |
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private $request; |
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private $view; |
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private $path; |
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/** |
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* @param IRequest $request |
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* @param string $user |
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* @param string $path |
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*/ |
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public function __construct(IRequest $request, $user, $path) { |
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$this->request = $request; |
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$this->user = $user; |
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$this->path = $path; |
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Filesystem::initMountPoints($user); |
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$this->view = new View('/' . $user); |
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if (!$this->view->file_exists($path)){ |
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$this->setStatus(Http::STATUS_NOT_FOUND); |
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} |
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} |
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public function render(){ |
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if ($this->getStatus() === Http::STATUS_NOT_FOUND){ |
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return ''; |
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} |
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$info = $this->view->getFileInfo($this->path); |
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$this->ETag = $info['etag']; |
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$content = $this->view->file_get_contents($this->path); |
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$data = \OCA\Documents\Filter::read($content, $info['mimetype']); |
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$size = strlen($data['content']); |
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if (isset($this->request->server['HTTP_RANGE']) && !is_null($this->request->server['HTTP_RANGE'])){ |
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$isValidRange = preg_match('/^bytes=\d*-\d*(,\d*-\d*)*$/', $this->request->server['HTTP_RANGE']); |
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if (!$isValidRange){ |
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return $this->sendRangeNotSatisfiable($size); |
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} |
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$ranges = explode(',', substr($this->request->server['HTTP_RANGE'], 6)); |
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foreach ($ranges as $range){ |
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$parts = explode('-', $range); |
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if ($parts[0]==='' && $parts[1]=='') { |
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$this->sendNotSatisfiable($size); |
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} |
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if ($parts[0]==='') { |
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$start = $size - $parts[1]; |
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$end = $size - 1; |
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} else { |
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$start = $parts[0]; |
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$end = ($parts[1]==='') ? $size - 1 : $parts[1]; |
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} |
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if ($start > $end){ |
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$this->sendNotSatisfiable($size); |
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} |
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$buffer = substr($data['content'], $start, $end - $start); |
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$md5Sum = md5($buffer); |
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// send the headers and data |
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$this->addHeader('Content-Length', $end - $start); |
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$this->addHeader('Content-md5', $md5Sum); |
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$this->addHeader('Accept-Ranges', 'bytes'); |
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$this->addHeader('Content-Range', 'bytes ' . $start . '-' . ($end) . '/' . $size); |
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$this->addHeader('Connection', 'close'); |
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$this->addHeader('Content-Type', $data['mimetype']); |
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$this->addContentDispositionHeader(); |
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return $buffer; |
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} |
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} |
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$this->addHeader('Content-Type', $data['mimetype']); |
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$this->addContentDispositionHeader(); |
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$this->addHeader('Content-Length', $size); |
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return $data['content']; |
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} |
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/** |
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* Send 416 if we can't satisfy the requested ranges |
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* @param integer $filesize |
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*/ |
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protected function sendRangeNotSatisfiable($filesize){ |
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$this->setStatus(Http::STATUS_REQUEST_RANGE_NOT_SATISFIABLE); |
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$this->addHeader('Content-Range', 'bytes */' . $filesize); // Required in 416. |
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return ''; |
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} |
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protected function addContentDispositionHeader(){ |
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$encodedName = rawurlencode(basename($this->path)); |
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$isIE = preg_match("/MSIE/", $this->request->server["HTTP_USER_AGENT"]); |
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if ($isIE){ |
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$this->addHeader( |
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'Content-Disposition', |
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'attachment; filename="' . $encodedName . '"' |
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); |
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} else { |
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$this->addHeader( |
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'Content-Disposition', |
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'attachment; filename*=UTF-8\'\'' . $encodedName . '; filepath="' . $encodedName . '"' |
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); |
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} |
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} |
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} |
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owncloud /
documents
