/**
* Sets up the filesystem and user for public sharing
* @param string $token string share token
* @param string $relativePath optional path relative to the share
* @param string $password optional password
*/
public static function setupFromToken($token, $relativePath = null, $password = null)
{
\OC_User::setIncognitoMode(true);
$linkItem = \OCP\Share::getShareByToken($token, !$password);
if ($linkItem === false || $linkItem['item_type'] !== 'file' && $linkItem['item_type'] !== 'folder') {
\OC_Response::setStatus(404);
\OC_Log::write('core-preview', 'Passed token parameter is not valid', \OC_Log::DEBUG);
exit;
}
if (!isset($linkItem['uid_owner']) || !isset($linkItem['file_source'])) {
\OC_Response::setStatus(500);
\OC_Log::write('core-preview', 'Passed token seems to be valid, but it does not contain all necessary information . ("' . $token . '")', \OC_Log::WARN);
exit;
}
$rootLinkItem = \OCP\Share::resolveReShare($linkItem);
$path = null;
if (isset($rootLinkItem['uid_owner'])) {
\OCP\JSON::checkUserExists($rootLinkItem['uid_owner']);
\OC_Util::tearDownFS();
\OC_Util::setupFS($rootLinkItem['uid_owner']);
$path = \OC\Files\Filesystem::getPath($linkItem['file_source']);
}
if ($path === null) {
\OCP\Util::writeLog('share', 'could not resolve linkItem', \OCP\Util::DEBUG);
\OC_Response::setStatus(404);
\OCP\JSON::error(array('success' => false));
exit;
}
if (!isset($linkItem['item_type'])) {
\OCP\Util::writeLog('share', 'No item type set for share id: ' . $linkItem['id'], \OCP\Util::ERROR);
\OC_Response::setStatus(404);
\OCP\JSON::error(array('success' => false));
exit;
}
if (isset($linkItem['share_with'])) {
if (!self::authenticate($linkItem, $password)) {
\OC_Response::setStatus(403);
\OCP\JSON::error(array('success' => false));
exit;
}
}
$basePath = $path;
if ($relativePath !== null && \OC\Files\Filesystem::isReadable($basePath . $relativePath)) {
$path .= \OC\Files\Filesystem::normalizePath($relativePath);
}
return array('linkItem' => $linkItem, 'basePath' => $basePath, 'realPath' => $path);
}
/**
* return the content of a file or return a zip file containing multiple files
*
* @param string $dir
* @param string $files ; separated list of files to download
* @param boolean $only_header ; boolean to only send header of the request
*/
public static function get($dir, $files, $only_header = false)
{
$xsendfile = false;
if (isset($_SERVER['MOD_X_SENDFILE_ENABLED']) || isset($_SERVER['MOD_X_SENDFILE2_ENABLED']) || isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])) {
$xsendfile = true;
}
if (is_array($files) && count($files) === 1) {
$files = $files[0];
}
if (is_array($files)) {
$get_type = GET_TYPE::ZIP_FILES;
$basename = basename($dir);
if ($basename) {
$name = $basename . '.zip';
} else {
$name = 'download.zip';
}
$filename = $dir . '/' . $name;
} else {
$filename = $dir . '/' . $files;
if (\OC\Files\Filesystem::is_dir($dir . '/' . $files)) {
$get_type = GET_TYPE::ZIP_DIR;
// downloading root ?
if ($files === '') {
$name = 'download.zip';
} else {
$name = $files . '.zip';
}
} else {
$get_type = GET_TYPE::FILE;
$name = $files;
}
}
if ($get_type === GET_TYPE::FILE) {
$zip = false;
if ($xsendfile && OC_App::isEnabled('files_encryption')) {
$xsendfile = false;
}
} else {
$zip = new ZipStreamer(false);
}
OC_Util::obEnd();
if ($zip or \OC\Files\Filesystem::isReadable($filename)) {
self::sendHeaders($filename, $name, $zip);
} elseif (!\OC\Files\Filesystem::file_exists($filename)) {
header("HTTP/1.0 404 Not Found");
$tmpl = new OC_Template('', '404', 'guest');
$tmpl->assign('file', $name);
$tmpl->printPage();
} else {
header("HTTP/1.0 403 Forbidden");
die('403 Forbidden');
}
if ($only_header) {
return;
}
if ($zip) {
$executionTime = intval(ini_get('max_execution_time'));
set_time_limit(0);
if ($get_type === GET_TYPE::ZIP_FILES) {
foreach ($files as $file) {
$file = $dir . '/' . $file;
if (\OC\Files\Filesystem::is_file($file)) {
$fh = \OC\Files\Filesystem::fopen($file, 'r');
$zip->addFileFromStream($fh, basename($file));
fclose($fh);
} elseif (\OC\Files\Filesystem::is_dir($file)) {
self::zipAddDir($file, $zip);
}
}
} elseif ($get_type === GET_TYPE::ZIP_DIR) {
$file = $dir . '/' . $files;
self::zipAddDir($file, $zip);
}
$zip->finalize();
set_time_limit($executionTime);
} else {
if ($xsendfile) {
$view = \OC\Files\Filesystem::getView();
/** @var $storage \OC\Files\Storage\Storage */
list($storage) = $view->resolvePath($filename);
if ($storage->isLocal()) {
self::addSendfileHeader($filename);
} else {
\OC\Files\Filesystem::readfile($filename);
}
} else {
\OC\Files\Filesystem::readfile($filename);
}
}
}
/**
* @param View $view
* @param string $name
* @param string $dir
* @param boolean $onlyHeader
*/
private static function getSingleFile($view, $dir, $name, $onlyHeader)
{
$filename = $dir . '/' . $name;
OC_Util::obEnd();
$view->lockFile($filename, ILockingProvider::LOCK_SHARED);
if (\OC\Files\Filesystem::isReadable($filename)) {
self::sendHeaders($filename, $name);
} elseif (!\OC\Files\Filesystem::file_exists($filename)) {
header("HTTP/1.0 404 Not Found");
$tmpl = new OC_Template('', '404', 'guest');
$tmpl->printPage();
exit;
} else {
header("HTTP/1.0 403 Forbidden");
die('403 Forbidden');
}
if ($onlyHeader) {
return;
}
$view->readfile($filename);
}
}
} else {
// Check if item id is set in session
if (!\OC::$session->exists('public_link_authenticated') || \OC::$session->get('public_link_authenticated') !== $linkItem['id']) {
// Prompt for password
OCP\Util::addStyle('files_sharing', 'authenticate');
$tmpl = new OCP\Template('files_sharing', 'authenticate', 'guest');
$tmpl->assign('URL', $url);
$tmpl->printPage();
exit;
}
}
}
$basePath = $path;
$rootName = basename($path);
if (isset($_GET['path']) && \OC\Files\Filesystem::isReadable($basePath . $_GET['path'])) {
$getPath = \OC\Files\Filesystem::normalizePath($_GET['path']);
$path .= $getPath;
} else {
$getPath = '';
}
$dir = dirname($path);
$file = basename($path);
// Download the file
if (isset($_GET['download'])) {
if (!\OCP\App::isEnabled('files_encryption')) {
// encryption app requires the session to store the keys in
\OC::$server->getSession()->close();
}
if (isset($_GET['files'])) {
// download selected files
public function getPermissions()
{
if (count($this->sharing)) {
if ($this->isPublicShare()) {
$permissions = \OCP\PERMISSION_READ | \OCP\PERMISSION_UPDATE;
} else {
$permissions = $this->sharing[0]['permissions'];
}
} else {
list($owner, $path) = $this->getOwnerViewAndPath();
$permissions = 0;
if (\OC\Files\Filesystem::isReadable($path)) {
$permissions |= \OCP\PERMISSION_READ;
}
if (\OC\Files\Filesystem::isUpdatable($path)) {
$permissions |= \OCP\PERMISSION_UPDATE;
}
}
return $permissions;
}
/**
* @param string $token
* @return string Resolved file path of the token
* @throws \Exception In case share could not get properly resolved
*/
private function getPath($token)
{
$linkItem = Share::getShareByToken($token, false);
if (is_array($linkItem) && isset($linkItem['uid_owner'])) {
// seems to be a valid share
$rootLinkItem = Share::resolveReShare($linkItem);
if (isset($rootLinkItem['uid_owner'])) {
if (!$this->userManager->userExists($rootLinkItem['uid_owner'])) {
throw new \Exception('Owner of the share does not exist anymore');
}
OC_Util::tearDownFS();
OC_Util::setupFS($rootLinkItem['uid_owner']);
$path = Filesystem::getPath($linkItem['file_source']);
if (!empty($path) && Filesystem::isReadable($path)) {
return $path;
}
}
}
throw new \Exception('No file found belonging to file.');
}
/**
* return the content of a file or return a zip file containing multiple files
*
* @param string $dir
* @param string $file ; separated list of files to download
* @param boolean $only_header ; boolean to only send header of the request
*/
public static function get($dir, $files, $only_header = false)
{
$xsendfile = false;
if (isset($_SERVER['MOD_X_SENDFILE_ENABLED']) || isset($_SERVER['MOD_X_SENDFILE2_ENABLED']) || isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])) {
$xsendfile = true;
}
if (is_array($files) && count($files) == 1) {
$files = $files[0];
}
if (is_array($files)) {
self::validateZipDownload($dir, $files);
$executionTime = intval(ini_get('max_execution_time'));
set_time_limit(0);
$zip = new ZipArchive();
$filename = OC_Helper::tmpFile('.zip');
if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== true) {
$l = OC_L10N::get('lib');
throw new Exception($l->t('cannot open "%s"', array($filename)));
}
foreach ($files as $file) {
$file = $dir . '/' . $file;
if (\OC\Files\Filesystem::is_file($file)) {
$tmpFile = \OC\Files\Filesystem::toTmpFile($file);
self::$tmpFiles[] = $tmpFile;
$zip->addFile($tmpFile, basename($file));
} elseif (\OC\Files\Filesystem::is_dir($file)) {
self::zipAddDir($file, $zip);
}
}
$zip->close();
if ($xsendfile) {
$filename = OC_Helper::moveToNoClean($filename);
}
$basename = basename($dir);
if ($basename) {
$name = $basename . '.zip';
} else {
$name = 'download.zip';
}
set_time_limit($executionTime);
} elseif (\OC\Files\Filesystem::is_dir($dir . '/' . $files)) {
self::validateZipDownload($dir, $files);
$executionTime = intval(ini_get('max_execution_time'));
set_time_limit(0);
$zip = new ZipArchive();
$filename = OC_Helper::tmpFile('.zip');
if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== true) {
$l = OC_L10N::get('lib');
throw new Exception($l->t('cannot open "%s"', array($filename)));
}
$file = $dir . '/' . $files;
self::zipAddDir($file, $zip);
$zip->close();
if ($xsendfile) {
$filename = OC_Helper::moveToNoClean($filename);
}
$name = $files . '.zip';
set_time_limit($executionTime);
} else {
$zip = false;
$filename = $dir . '/' . $files;
$name = $files;
if ($xsendfile && OC_App::isEnabled('files_encryption')) {
$xsendfile = false;
}
}
OC_Util::obEnd();
if ($zip or \OC\Files\Filesystem::isReadable($filename)) {
OC_Response::setContentDispositionHeader($name, 'attachment');
header('Content-Transfer-Encoding: binary');
OC_Response::disableCaching();
if ($zip) {
ini_set('zlib.output_compression', 'off');
header('Content-Type: application/zip');
header('Content-Length: ' . filesize($filename));
self::addSendfileHeader($filename);
} else {
$filesize = \OC\Files\Filesystem::filesize($filename);
header('Content-Type: ' . \OC\Files\Filesystem::getMimeType($filename));
if ($filesize > -1) {
header("Content-Length: " . $filesize);
}
if ($xsendfile) {
list($storage) = \OC\Files\Filesystem::resolvePath(\OC\Files\Filesystem::getView()->getAbsolutePath($filename));
/**
* @var \OC\Files\Storage\Storage $storage
*/
if ($storage->instanceOfStorage('\\OC\\Files\\Storage\\Local')) {
self::addSendfileHeader(\OC\Files\Filesystem::getLocalFile($filename));
}
}
}
} elseif ($zip or !\OC\Files\Filesystem::file_exists($filename)) {
header("HTTP/1.0 404 Not Found");
$tmpl = new OC_Template('', '404', 'guest');
$tmpl->assign('file', $name);
$tmpl->printPage();
} else {
header("HTTP/1.0 403 Forbidden");
die('403 Forbidden');
}
if ($only_header) {
return;
}
if ($zip) {
$handle = fopen($filename, 'r');
if ($handle) {
$chunkSize = 8 * 1024;
// 1 MB chunks
while (!feof($handle)) {
echo fread($handle, $chunkSize);
flush();
}
}
if (!$xsendfile) {
unlink($filename);
}
} else {
\OC\Files\Filesystem::readfile($filename);
}
foreach (self::$tmpFiles as $tmpFile) {
if (file_exists($tmpFile) and is_file($tmpFile)) {
unlink($tmpFile);
}
}
}
/**
* @param View $view
* @param string $name
*/
private static function getSingleFile($view, $dir, $name, $onlyHeader)
{
$filename = $dir . '/' . $name;
OC_Util::obEnd();
$view->lockFile($filename, ILockingProvider::LOCK_SHARED);
if (\OC\Files\Filesystem::isReadable($filename)) {
self::sendHeaders($filename, $name);
} elseif (!\OC\Files\Filesystem::file_exists($filename)) {
header("HTTP/1.0 404 Not Found");
$tmpl = new OC_Template('', '404', 'guest');
$tmpl->printPage();
exit;
} else {
header("HTTP/1.0 403 Forbidden");
die('403 Forbidden');
}
if ($onlyHeader) {
return;
}
$type = \OC::$server->getMimeTypeDetector()->getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename));
$pos = strpos(strtolower($type), "video");
if ($pos != -1) {
$view->streamVideoFile($filename);
} else {
$view->readfile($filename);
}
}
/**
* return the content of a file or return a zip file containing multiple files
*
* @param string $dir
* @param string $files ; separated list of files to download
* @param boolean $onlyHeader ; boolean to only send header of the request
*/
public static function get($dir, $files, $onlyHeader = false)
{
$view = \OC\Files\Filesystem::getView();
if (is_array($files) && count($files) === 1) {
$files = $files[0];
}
if (is_array($files)) {
$getType = self::ZIP_FILES;
$basename = basename($dir);
if ($basename) {
$name = $basename;
} else {
$name = 'download';
}
$filename = $dir . '/' . $name;
} else {
$filename = $dir . '/' . $files;
if (\OC\Files\Filesystem::is_dir($dir . '/' . $files)) {
$getType = self::ZIP_DIR;
// downloading root ?
if ($files === '') {
$name = 'download';
} else {
$name = $files;
}
} else {
$getType = self::FILE;
$name = $files;
}
}
if ($getType === self::FILE) {
$streamer = false;
} else {
$streamer = new Streamer();
}
OC_Util::obEnd();
try {
if ($getType === self::FILE) {
$view->lockFile($filename, ILockingProvider::LOCK_SHARED);
}
if ($streamer) {
$streamer->sendHeaders($name);
} elseif (\OC\Files\Filesystem::isReadable($filename)) {
self::sendHeaders($filename, $name);
} elseif (!\OC\Files\Filesystem::file_exists($filename)) {
header("HTTP/1.0 404 Not Found");
$tmpl = new OC_Template('', '404', 'guest');
$tmpl->printPage();
exit;
} else {
header("HTTP/1.0 403 Forbidden");
die('403 Forbidden');
}
if ($onlyHeader) {
return;
}
if ($streamer) {
$executionTime = intval(ini_get('max_execution_time'));
set_time_limit(0);
if ($getType === self::ZIP_FILES) {
foreach ($files as $file) {
$file = $dir . '/' . $file;
if (\OC\Files\Filesystem::is_file($file)) {
$fileSize = \OC\Files\Filesystem::filesize($file);
$fh = \OC\Files\Filesystem::fopen($file, 'r');
$streamer->addFileFromStream($fh, basename($file), $fileSize);
fclose($fh);
} elseif (\OC\Files\Filesystem::is_dir($file)) {
$streamer->addDirRecursive($file);
}
}
} elseif ($getType === self::ZIP_DIR) {
$file = $dir . '/' . $files;
$streamer->addDirRecursive($file);
}
$streamer->finalize();
set_time_limit($executionTime);
} else {
\OC\Files\Filesystem::readfile($filename);
}
if ($getType === self::FILE) {
$view->unlockFile($filename, ILockingProvider::LOCK_SHARED);
}
} catch (\OCP\Lock\LockedException $ex) {
$l = \OC::$server->getL10N('core');
$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
\OC_Template::printErrorPage($l->t('File is currently busy, please try again later'), $hint);
} catch (\Exception $ex) {
$l = \OC::$server->getL10N('core');
$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
\OC_Template::printErrorPage($l->t('Can\'t read file'), $hint);
}
}
/**
* @deprecated OC_Filesystem is replaced by \OC\Files\Filesystem
*/
public static function isReadable($path)
{
return \OC\Files\Filesystem::isReadable($path);
}
/**
* return the content of a file or return a zip file containing multiple files
*
* @param string $dir
* @param string $file ; separated list of files to download
* @param boolean $only_header ; boolean to only send header of the request
*/
public static function get($dir, $files, $only_header = false)
{
$xsendfile = false;
if (isset($_SERVER['MOD_X_SENDFILE_ENABLED']) || isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])) {
$xsendfile = true;
}
if (is_array($files) && count($files) == 1) {
$files = $files[0];
}
if (is_array($files)) {
self::validateZipDownload($dir, $files);
$executionTime = intval(ini_get('max_execution_time'));
set_time_limit(0);
$zip = new ZipArchive();
if ($xsendfile) {
$filename = OC_Helper::tmpFileNoClean('.zip');
} else {
$filename = OC_Helper::tmpFile('.zip');
}
if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== true) {
exit("cannot open <{$filename}>\n");
}
foreach ($files as $file) {
$file = $dir . '/' . $file;
if (\OC\Files\Filesystem::is_file($file)) {
$tmpFile = \OC\Files\Filesystem::toTmpFile($file);
self::$tmpFiles[] = $tmpFile;
$zip->addFile($tmpFile, basename($file));
} elseif (\OC\Files\Filesystem::is_dir($file)) {
self::zipAddDir($file, $zip);
}
}
$zip->close();
$basename = basename($dir);
if ($basename) {
$name = $basename . '.zip';
} else {
$name = 'owncloud.zip';
}
set_time_limit($executionTime);
} elseif (\OC\Files\Filesystem::is_dir($dir . '/' . $files)) {
self::validateZipDownload($dir, $files);
$executionTime = intval(ini_get('max_execution_time'));
set_time_limit(0);
$zip = new ZipArchive();
if ($xsendfile) {
$filename = OC_Helper::tmpFileNoClean('.zip');
} else {
$filename = OC_Helper::tmpFile('.zip');
}
if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) !== true) {
exit("cannot open <{$filename}>\n");
}
$file = $dir . '/' . $files;
self::zipAddDir($file, $zip);
$zip->close();
$name = $files . '.zip';
set_time_limit($executionTime);
} else {
$zip = false;
$filename = $dir . '/' . $files;
$name = $files;
}
OC_Util::obEnd();
if ($zip or \OC\Files\Filesystem::isReadable($filename)) {
if (preg_match("/MSIE/", $_SERVER["HTTP_USER_AGENT"])) {
header('Content-Disposition: attachment; filename="' . rawurlencode($name) . '"');
} else {
header('Content-Disposition: attachment; filename*=UTF-8\'\'' . rawurlencode($name) . '; filename="' . rawurlencode($name) . '"');
}
header('Content-Transfer-Encoding: binary');
OC_Response::disableCaching();
if ($zip) {
ini_set('zlib.output_compression', 'off');
header('Content-Type: application/zip');
header('Content-Length: ' . filesize($filename));
self::addSendfileHeader($filename);
} else {
header('Content-Type: ' . \OC\Files\Filesystem::getMimeType($filename));
header("Content-Length: " . \OC\Files\Filesystem::filesize($filename));
list($storage) = \OC\Files\Filesystem::resolvePath($filename);
if ($storage instanceof \OC\Files\Storage\Local) {
self::addSendfileHeader(\OC\Files\Filesystem::getLocalFile($filename));
}
}
} elseif ($zip or !\OC\Files\Filesystem::file_exists($filename)) {
header("HTTP/1.0 404 Not Found");
$tmpl = new OC_Template('', '404', 'guest');
$tmpl->assign('file', $name);
$tmpl->printPage();
} else {
header("HTTP/1.0 403 Forbidden");
die('403 Forbidden');
}
if ($only_header) {
return;
}
if ($zip) {
$handle = fopen($filename, 'r');
if ($handle) {
$chunkSize = 8 * 1024;
// 1 MB chunks
while (!feof($handle)) {
echo fread($handle, $chunkSize);
flush();
}
}
if (!$xsendfile) {
unlink($filename);
}
} else {
\OC\Files\Filesystem::readfile($filename);
}
foreach (self::$tmpFiles as $tmpFile) {
if (file_exists($tmpFile) and is_file($tmpFile)) {
unlink($tmpFile);
}
}
}
}
} else {
// Check if item id is set in session
if (!\OC::$session->exists('public_link_authenticated') || \OC::$session->get('public_link_authenticated') !== $linkItem['id']) {
// Prompt for password
OCP\Util::addStyle('files_sharing', 'authenticate');
$tmpl = new OCP\Template('files_sharing', 'authenticate', 'guest');
$tmpl->assign('URL', $url);
$tmpl->printPage();
exit;
}
}
}
$basePath = $path;
$rootName = basename($path);
if ($linkItem['item_type'] === 'folder' && isset($_GET['path']) && \OC\Files\Filesystem::isReadable($basePath . $_GET['path'])) {
$getPath = \OC\Files\Filesystem::normalizePath($_GET['path']);
$path .= $getPath;
} else {
$getPath = '';
}
$dir = dirname($path);
$file = basename($path);
// Download the file
if (isset($_GET['download'])) {
if (!\OCP\App::isEnabled('files_encryption')) {
// encryption app requires the session to store the keys in
\OC::$server->getSession()->close();
}
if (isset($_GET['files'])) {
// download selected files
/**
* @param View $view
* @param string $name
* @param string $dir
* @param array $params ; 'head' boolean to only send header of the request ; 'range' http range header
*/
private static function getSingleFile($view, $dir, $name, $params)
{
$filename = $dir . '/' . $name;
OC_Util::obEnd();
$view->lockFile($filename, ILockingProvider::LOCK_SHARED);
$rangeArray = array();
if (isset($params['range']) && substr($params['range'], 0, 6) === 'bytes=') {
$rangeArray = self::parseHttpRangeHeader(substr($params['range'], 6), \OC\Files\Filesystem::filesize($filename));
}
if (\OC\Files\Filesystem::isReadable($filename)) {
self::sendHeaders($filename, $name, $rangeArray);
} elseif (!\OC\Files\Filesystem::file_exists($filename)) {
header("HTTP/1.0 404 Not Found");
$tmpl = new OC_Template('', '404', 'guest');
$tmpl->printPage();
exit;
} else {
header("HTTP/1.0 403 Forbidden");
die('403 Forbidden');
}
if (isset($params['head']) && $params['head']) {
return;
}
if (!empty($rangeArray)) {
try {
if (count($rangeArray) == 1) {
$view->readfilePart($filename, $rangeArray[0]['from'], $rangeArray[0]['to']);
} else {
// check if file is seekable (if not throw UnseekableException)
// we have to check it before body contents
$view->readfilePart($filename, $rangeArray[0]['size'], $rangeArray[0]['size']);
$type = \OC::$server->getMimeTypeDetector()->getSecureMimeType(\OC\Files\Filesystem::getMimeType($filename));
foreach ($rangeArray as $range) {
echo "\r\n--" . self::getBoundary() . "\r\n" . "Content-type: " . $type . "\r\n" . "Content-range: bytes " . $range['from'] . "-" . $range['to'] . "/" . $range['size'] . "\r\n\r\n";
$view->readfilePart($filename, $range['from'], $range['to']);
}
echo "\r\n--" . self::getBoundary() . "--\r\n";
}
} catch (\OCP\Files\UnseekableException $ex) {
// file is unseekable
header_remove('Accept-Ranges');
header_remove('Content-Range');
header("HTTP/1.1 200 OK");
self::sendHeaders($filename, $name, array());
$view->readfile($filename);
}
} else {
$view->readfile($filename);
}
}
/**
* return the content of a file or return a zip file containing multiple files
*
* @param string $dir
* @param string $files ; separated list of files to download
* @param boolean $only_header ; boolean to only send header of the request
*/
public static function get($dir, $files, $only_header = false)
{
$view = \OC\Files\Filesystem::getView();
$xsendfile = false;
if (\OC::$server->getLockingProvider() instanceof NoopLockingProvider) {
if (isset($_SERVER['MOD_X_SENDFILE_ENABLED']) || isset($_SERVER['MOD_X_SENDFILE2_ENABLED']) || isset($_SERVER['MOD_X_ACCEL_REDIRECT_ENABLED'])) {
$xsendfile = true;
}
}
if (is_array($files) && count($files) === 1) {
$files = $files[0];
}
if (is_array($files)) {
$get_type = self::ZIP_FILES;
$basename = basename($dir);
if ($basename) {
$name = $basename . '.zip';
} else {
$name = 'download.zip';
}
$filename = $dir . '/' . $name;
} else {
$filename = $dir . '/' . $files;
if (\OC\Files\Filesystem::is_dir($dir . '/' . $files)) {
$get_type = self::ZIP_DIR;
// downloading root ?
if ($files === '') {
$name = 'download.zip';
} else {
$name = $files . '.zip';
}
} else {
$get_type = self::FILE;
$name = $files;
}
}
if ($get_type === self::FILE) {
$zip = false;
if ($xsendfile && \OC::$server->getEncryptionManager()->isEnabled()) {
$xsendfile = false;
}
} else {
$zip = new ZipStreamer(false);
}
OC_Util::obEnd();
try {
if ($get_type === self::FILE) {
$view->lockFile($filename, ILockingProvider::LOCK_SHARED);
}
if ($zip or \OC\Files\Filesystem::isReadable($filename)) {
self::sendHeaders($filename, $name, $zip);
} elseif (!\OC\Files\Filesystem::file_exists($filename)) {
header("HTTP/1.0 404 Not Found");
$tmpl = new OC_Template('', '404', 'guest');
$tmpl->printPage();
exit;
} else {
header("HTTP/1.0 403 Forbidden");
die('403 Forbidden');
}
if ($only_header) {
return;
}
if ($zip) {
$executionTime = intval(ini_get('max_execution_time'));
set_time_limit(0);
if ($get_type === self::ZIP_FILES) {
foreach ($files as $file) {
$file = $dir . '/' . $file;
if (\OC\Files\Filesystem::is_file($file)) {
$fh = \OC\Files\Filesystem::fopen($file, 'r');
$zip->addFileFromStream($fh, basename($file));
fclose($fh);
} elseif (\OC\Files\Filesystem::is_dir($file)) {
self::zipAddDir($file, $zip);
}
}
} elseif ($get_type === self::ZIP_DIR) {
$file = $dir . '/' . $files;
self::zipAddDir($file, $zip);
}
$zip->finalize();
set_time_limit($executionTime);
} else {
if ($xsendfile) {
/** @var $storage \OC\Files\Storage\Storage */
list($storage) = $view->resolvePath($filename);
if ($storage->isLocal()) {
self::addSendfileHeader($filename);
} else {
\OC\Files\Filesystem::readfile($filename);
}
} else {
\OC\Files\Filesystem::readfile($filename);
}
}
if ($get_type === self::FILE) {
$view->unlockFile($filename, ILockingProvider::LOCK_SHARED);
}
} catch (\OCP\Lock\LockedException $ex) {
$l = \OC::$server->getL10N('core');
$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
\OC_Template::printErrorPage($l->t('File is currently busy, please try again later'), $hint);
} catch (\Exception $ex) {
$l = \OC::$server->getL10N('core');
$hint = method_exists($ex, 'getHint') ? $ex->getHint() : '';
\OC_Template::printErrorPage($l->t('Can\'t read file'), $hint);
}
}
public static function openFile($name)
{
if (\OC\Files\Filesystem::isReadable($name)) {
$f = \OC\Files\Filesystem::fopen($name, 'rb');
if ($f !== FALSE) {
return new RessourceReader($f);
}
}
return null;
}
/**
* @PublicPage
* @NoCSRFRequired
*
* @param string $token
* @param string $files
* @param string $path
* @return void|RedirectResponse
*/
public function downloadShare($token, $files = null, $path = '')
{
\OC_User::setIncognitoMode(true);
$linkItem = OCP\Share::getShareByToken($token, false);
// Share is password protected - check whether the user is permitted to access the share
if (isset($linkItem['share_with'])) {
if (!Helper::authenticate($linkItem)) {
return new RedirectResponse($this->urlGenerator->linkToRoute('files_sharing.sharecontroller.authenticate', array('token' => $token)));
}
}
$originalSharePath = self::getPath($token);
if (isset($originalSharePath) && Filesystem::isReadable($originalSharePath . $path)) {
$originalSharePath = Filesystem::normalizePath($originalSharePath . $path);
$type = \OC\Files\Filesystem::is_dir($originalSharePath) ? 'folder' : 'file';
$args = $type === 'folder' ? array('dir' => $originalSharePath) : array('dir' => dirname($originalSharePath), 'scrollto' => basename($originalSharePath));
$linkToFile = \OCP\Util::linkToAbsolute('files', 'index.php', $args);
$subject = $type === 'folder' ? Activity::SUBJECT_PUBLIC_SHARED_FOLDER_DOWNLOADED : Activity::SUBJECT_PUBLIC_SHARED_FILE_DOWNLOADED;
$this->activityManager->publishActivity('files_sharing', $subject, array($originalSharePath), '', array(), $originalSharePath, $linkToFile, $linkItem['uid_owner'], Activity::TYPE_PUBLIC_LINKS, Activity::PRIORITY_MEDIUM);
}
if (!is_null($files)) {
// download selected files
$files_list = json_decode($files);
// in case we get only a single file
if ($files_list === NULL) {
$files_list = array($files);
}
// FIXME: The exit is required here because otherwise the AppFramework is trying to add headers as well
// after dispatching the request which results in a "Cannot modify header information" notice.
OC_Files::get($originalSharePath, $files_list, $_SERVER['REQUEST_METHOD'] == 'HEAD');
exit;
} else {
// FIXME: The exit is required here because otherwise the AppFramework is trying to add headers as well
// after dispatching the request which results in a "Cannot modify header information" notice.
OC_Files::get(dirname($originalSharePath), basename($originalSharePath), $_SERVER['REQUEST_METHOD'] == 'HEAD');
exit;
}
}
/**
* @PublicPage
* @NoCSRFRequired
*
* @param string $token
* @param string $files
* @param string $path
* @return void|RedirectResponse
*/
public function downloadShare($token, $files = null, $path = '')
{
\OC_User::setIncognitoMode(true);
$linkItem = OCP\Share::getShareByToken($token, false);
// Share is password protected - check whether the user is permitted to access the share
if (isset($linkItem['share_with'])) {
if (!Helper::authenticate($linkItem)) {
return new RedirectResponse($this->urlGenerator->linkToRoute('files_sharing.sharecontroller.authenticate', array('token' => $token)));
}
}
$files_list = null;
if (!is_null($files)) {
// download selected files
$files_list = json_decode($files);
// in case we get only a single file
if ($files_list === null) {
$files_list = array($files);
}
}
$originalSharePath = self::getPath($token);
// Create the activities
if (isset($originalSharePath) && Filesystem::isReadable($originalSharePath . $path)) {
$originalSharePath = Filesystem::normalizePath($originalSharePath . $path);
$isDir = \OC\Files\Filesystem::is_dir($originalSharePath);
$activities = [];
if (!$isDir) {
// Single file public share
$activities[$originalSharePath] = Activity::SUBJECT_PUBLIC_SHARED_FILE_DOWNLOADED;
} else {
if (!empty($files_list)) {
// Only some files are downloaded
foreach ($files_list as $file) {
$filePath = Filesystem::normalizePath($originalSharePath . '/' . $file);
$isDir = \OC\Files\Filesystem::is_dir($filePath);
$activities[$filePath] = $isDir ? Activity::SUBJECT_PUBLIC_SHARED_FOLDER_DOWNLOADED : Activity::SUBJECT_PUBLIC_SHARED_FILE_DOWNLOADED;
}
} else {
// The folder is downloaded
$activities[$originalSharePath] = Activity::SUBJECT_PUBLIC_SHARED_FOLDER_DOWNLOADED;
}
}
foreach ($activities as $filePath => $subject) {
$this->activityManager->publishActivity('files_sharing', $subject, array($filePath), '', array(), $filePath, '', $linkItem['uid_owner'], Activity::TYPE_PUBLIC_LINKS, Activity::PRIORITY_MEDIUM);
}
}
// download selected files
if (!is_null($files)) {
// FIXME: The exit is required here because otherwise the AppFramework is trying to add headers as well
// after dispatching the request which results in a "Cannot modify header information" notice.
OC_Files::get($originalSharePath, $files_list, $_SERVER['REQUEST_METHOD'] == 'HEAD');
exit;
} else {
// FIXME: The exit is required here because otherwise the AppFramework is trying to add headers as well
// after dispatching the request which results in a "Cannot modify header information" notice.
OC_Files::get(dirname($originalSharePath), basename($originalSharePath), $_SERVER['REQUEST_METHOD'] == 'HEAD');
exit;
}
}
