Merge pull request #7313 from nextcloud/ensure-that-x-oc-mtime-header-is-an-integer-with-chunked-uploads
Ensure that X-OC-MTime header is an integer with chunked uploads
This commit is contained in:
Morris Jobke
GitHub
commit
5b20600da9
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@ -36,13 +36,16 @@
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namespace OCA\DAV\Connector\Sabre;
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use OC\AppFramework\Http\Request;
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use OC\Files\Filesystem;
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use OC\Files\View;
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use OCA\DAV\Connector\Sabre\Exception\EntityTooLarge;
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use OCA\DAV\Connector\Sabre\Exception\FileLocked;
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use OCA\DAV\Connector\Sabre\Exception\Forbidden as DAVForbiddenException;
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use OCA\DAV\Connector\Sabre\Exception\UnsupportedMediaType;
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use OCP\Encryption\Exceptions\GenericEncryptionException;
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use OCP\Files\EntityTooLargeException;
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use OCP\Files\FileInfo;
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use OCP\Files\ForbiddenException;
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use OCP\Files\InvalidContentException;
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use OCP\Files\InvalidPathException;
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@ -51,6 +54,7 @@ use OCP\Files\NotPermittedException;
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use OCP\Files\StorageNotAvailableException;
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use OCP\Lock\ILockingProvider;
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use OCP\Lock\LockedException;
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use OCP\Share\IManager;
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use Sabre\DAV\Exception;
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use Sabre\DAV\Exception\BadRequest;
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use Sabre\DAV\Exception\Forbidden;
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@ -61,6 +65,26 @@ use Sabre\DAV\Exception\NotFound;
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class File extends Node implements IFile {
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protected $request;
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/**
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* Sets up the node, expects a full path name
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*
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* @param \OC\Files\View $view
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* @param \OCP\Files\FileInfo $info
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* @param \OCP\Share\IManager $shareManager
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* @param \OC\AppFramework\Http\Request $request
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*/
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public function __construct(View $view, FileInfo $info, IManager $shareManager = null, Request $request = null) {
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parent::__construct($view, $info, $shareManager);
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if (isset($request)) {
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$this->request = $request;
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} else {
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$this->request = \OC::$server->getRequest();
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}
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}
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/**
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* Updates the data
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*
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@ -208,15 +232,10 @@ class File extends Node implements IFile {
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}
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// allow sync clients to send the mtime along in a header
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$request = \OC::$server->getRequest();
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if (isset($request->server['HTTP_X_OC_MTIME'])) {
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$mtimeStr = $request->server['HTTP_X_OC_MTIME'];
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if (!is_numeric($mtimeStr)) {
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throw new \InvalidArgumentException('X-OC-Mtime header must be an integer (unix timestamp).');
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}
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$mtime = intval($mtimeStr);
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if (isset($this->request->server['HTTP_X_OC_MTIME'])) {
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$mtime = $this->sanitizeMtime($this->request->server['HTTP_X_OC_MTIME']);
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if ($this->fileView->touch($this->path, $mtime)) {
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header('X-OC-MTime: accepted');
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$this->header('X-OC-MTime: accepted');
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}
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}
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@ -226,8 +245,8 @@ class File extends Node implements IFile {
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$this->refreshInfo();
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if (isset($request->server['HTTP_OC_CHECKSUM'])) {
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$checksum = trim($request->server['HTTP_OC_CHECKSUM']);
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if (isset($this->request->server['HTTP_OC_CHECKSUM'])) {
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$checksum = trim($this->request->server['HTTP_OC_CHECKSUM']);
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$this->fileView->putFileInfo($this->path, ['checksum' => $checksum]);
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$this->refreshInfo();
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} else if ($this->getChecksum() !== null && $this->getChecksum() !== '') {
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@ -470,10 +489,10 @@ class File extends Node implements IFile {
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}
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// allow sync clients to send the mtime along in a header
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$request = \OC::$server->getRequest();
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if (isset($request->server['HTTP_X_OC_MTIME'])) {
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if ($targetStorage->touch($targetInternalPath, $request->server['HTTP_X_OC_MTIME'])) {
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header('X-OC-MTime: accepted');
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if (isset($this->request->server['HTTP_X_OC_MTIME'])) {
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$mtime = $this->sanitizeMtime($this->request->server['HTTP_X_OC_MTIME']);
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if ($targetStorage->touch($targetInternalPath, $mtime)) {
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$this->header('X-OC-MTime: accepted');
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}
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}
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@ -487,8 +506,8 @@ class File extends Node implements IFile {
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// FIXME: should call refreshInfo but can't because $this->path is not the of the final file
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$info = $this->fileView->getFileInfo($targetPath);
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if (isset($request->server['HTTP_OC_CHECKSUM'])) {
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$checksum = trim($request->server['HTTP_OC_CHECKSUM']);
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if (isset($this->request->server['HTTP_OC_CHECKSUM'])) {
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$checksum = trim($this->request->server['HTTP_OC_CHECKSUM']);
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$this->fileView->putFileInfo($targetPath, ['checksum' => $checksum]);
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} else if ($info->getChecksum() !== null && $info->getChecksum() !== '') {
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$this->fileView->putFileInfo($this->path, ['checksum' => '']);
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@ -570,6 +589,18 @@ class File extends Node implements IFile {
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throw new \Sabre\DAV\Exception($e->getMessage(), 0, $e);
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}
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private function sanitizeMtime($mtimeFromRequest) {
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// In PHP 5.X "is_numeric" returns true for strings in hexadecimal
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// notation. This is no longer the case in PHP 7.X, so this check
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// ensures that strings with hexadecimal notations fail too in PHP 5.X.
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$isHexadecimal = is_string($mtimeFromRequest) && preg_match('/^\s*0[xX]/', $mtimeFromRequest);
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if ($isHexadecimal || !is_numeric($mtimeFromRequest)) {
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throw new \InvalidArgumentException('X-OC-MTime header must be an integer (unix timestamp).');
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}
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return intval($mtimeFromRequest);
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}
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/**
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* Get the checksum for this file
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*
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@ -578,4 +609,8 @@ class File extends Node implements IFile {
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public function getChecksum() {
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return $this->info->getChecksum();
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}
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protected function header($string) {
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\header($string);
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}
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}
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@ -31,6 +31,7 @@ use OC\Files\Storage\Local;
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use OC\Files\View;
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use OCP\Files\ForbiddenException;
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use OCP\Files\Storage;
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use OCP\IConfig;
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use Test\HookHelper;
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use OC\Files\Filesystem;
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use OCP\Lock\ILockingProvider;
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@ -49,6 +50,9 @@ class FileTest extends \Test\TestCase {
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*/
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private $user;
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/** @var IConfig | \PHPUnit_Framework_MockObject_MockObject */
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protected $config;
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public function setUp() {
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parent::setUp();
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unset($_SERVER['HTTP_OC_CHUNKED']);
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@ -62,6 +66,8 @@ class FileTest extends \Test\TestCase {
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$userManager->createUser($this->user, 'pass');
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$this->loginAsUser($this->user);
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$this->config = $this->getMockBuilder('\OCP\IConfig')->getMock();
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}
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public function tearDown() {
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@ -284,10 +290,11 @@ class FileTest extends \Test\TestCase {
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*
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* @param string $path path to put the file into
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* @param string $viewRoot root to use for the view
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* @param null|\OC\AppFramework\Http\Request $request the HTTP request
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*
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* @return null|string of the PUT operaiton which is usually the etag
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*/
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private function doPut($path, $viewRoot = null) {
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private function doPut($path, $viewRoot = null, \OC\AppFramework\Http\Request $request = null) {
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$view = \OC\Files\Filesystem::getView();
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if (!is_null($viewRoot)) {
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$view = new \OC\Files\View($viewRoot);
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@ -303,7 +310,11 @@ class FileTest extends \Test\TestCase {
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null
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);
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$file = new \OCA\DAV\Connector\Sabre\File($view, $info);
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/** @var \OCA\DAV\Connector\Sabre\File | \PHPUnit_Framework_MockObject_MockObject $file */
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$file = $this->getMockBuilder(\OCA\DAV\Connector\Sabre\File::class)
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->setConstructorArgs([$view, $info, null, $request])
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->setMethods(['header'])
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->getMock();
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// beforeMethod locks
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$view->lockFile($path, ILockingProvider::LOCK_SHARED);
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@ -323,6 +334,110 @@ class FileTest extends \Test\TestCase {
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$this->assertNotEmpty($this->doPut('/foo.txt'));
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}
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public function legalMtimeProvider() {
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return [
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"string" => [
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'HTTP_X_OC_MTIME' => "string",
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'expected result' => null
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],
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"castable string (int)" => [
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'HTTP_X_OC_MTIME' => "34",
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'expected result' => 34
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],
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"castable string (float)" => [
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'HTTP_X_OC_MTIME' => "34.56",
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'expected result' => 34
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],
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"float" => [
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'HTTP_X_OC_MTIME' => 34.56,
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'expected result' => 34
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],
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"zero" => [
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'HTTP_X_OC_MTIME' => 0,
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'expected result' => 0
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],
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"zero string" => [
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'HTTP_X_OC_MTIME' => "0",
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'expected result' => 0
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],
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"negative zero string" => [
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'HTTP_X_OC_MTIME' => "-0",
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'expected result' => 0
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],
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"string starting with number following by char" => [
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'HTTP_X_OC_MTIME' => "2345asdf",
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'expected result' => null
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],
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"string castable hex int" => [
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'HTTP_X_OC_MTIME' => "0x45adf",
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'expected result' => null
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],
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"string that looks like invalid hex int" => [
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'HTTP_X_OC_MTIME' => "0x123g",
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'expected result' => null
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],
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"negative int" => [
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'HTTP_X_OC_MTIME' => -34,
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'expected result' => -34
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],
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"negative float" => [
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'HTTP_X_OC_MTIME' => -34.43,
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'expected result' => -34
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],
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];
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}
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/**
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* Test putting a file with string Mtime
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* @dataProvider legalMtimeProvider
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*/
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public function testPutSingleFileLegalMtime($requestMtime, $resultMtime) {
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$request = new \OC\AppFramework\Http\Request([
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'server' => [
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'HTTP_X_OC_MTIME' => $requestMtime,
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]
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], null, $this->config, null);
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$file = 'foo.txt';
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if ($resultMtime === null) {
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$this->expectException(\InvalidArgumentException::class);
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$this->expectExceptionMessage("X-OC-MTime header must be an integer (unix timestamp).");
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}
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$this->doPut($file, null, $request);
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if ($resultMtime !== null) {
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$this->assertEquals($resultMtime, $this->getFileInfos($file)['mtime']);
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}
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}
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/**
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* Test putting a file with string Mtime using chunking
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* @dataProvider legalMtimeProvider
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*/
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public function testChunkedPutLegalMtime($requestMtime, $resultMtime) {
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$request = new \OC\AppFramework\Http\Request([
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'server' => [
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'HTTP_X_OC_MTIME' => $requestMtime,
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]
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], null, $this->config, null);
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$_SERVER['HTTP_OC_CHUNKED'] = true;
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$file = 'foo.txt';
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if ($resultMtime === null) {
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$this->expectException(\Sabre\DAV\Exception::class);
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$this->expectExceptionMessage("X-OC-MTime header must be an integer (unix timestamp).");
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}
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$this->doPut($file.'-chunking-12345-2-0', null, $request);
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$this->doPut($file.'-chunking-12345-2-1', null, $request);
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if ($resultMtime !== null) {
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$this->assertEquals($resultMtime, $this->getFileInfos($file)['mtime']);
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}
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}
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/**
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* Test putting a file using chunking
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*/
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@ -967,6 +1082,25 @@ class FileTest extends \Test\TestCase {
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return $files;
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}
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/**
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* returns an array of file information filesize, mtime, filetype, mimetype
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*
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* @param string $path
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* @param View $userView
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* @return array
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*/
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private function getFileInfos($path = '', View $userView = null) {
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if ($userView === null) {
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$userView = Filesystem::getView();
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}
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return [
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"filesize" => $userView->filesize($path),
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"mtime" => $userView->filemtime($path),
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"filetype" => $userView->filetype($path),
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"mimetype" => $userView->getMimeType($path)
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];
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}
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/**
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* @expectedException \Sabre\DAV\Exception\ServiceUnavailable
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*/
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