383 lines
15 KiB
PHP
383 lines
15 KiB
PHP
<?php
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// Load other apps for file previews
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OC_App::loadApps();
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/**
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* lookup file path and owner by fetching it from the fscache
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* needed because OC_FileCache::getPath($id, $user) already requires the user
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* @param int $id
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* @return array
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*/
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function getPathAndUser($id) {
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$query = \OC_DB::prepare('SELECT `user`, `path` FROM `*PREFIX*fscache` WHERE `id` = ?');
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$result = $query->execute(array($id));
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$row = $result->fetchRow();
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return $row;
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}
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if (isset($_GET['t'])) {
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$token = $_GET['t'];
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$linkItem = OCP\Share::getShareByToken($token);
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if (is_array($linkItem) && isset($linkItem['uid_owner'])) {
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// seems to be a valid share
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$type = $linkItem['item_type'];
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$fileSource = $linkItem['file_source'];
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$shareOwner = $linkItem['uid_owner'];
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if (OCP\User::userExists($shareOwner) && $fileSource != -1 ) {
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$pathAndUser = getPathAndUser($linkItem['file_source']);
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$fileOwner = $pathAndUser['user'];
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//if this is a reshare check the file owner also exists
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if ($shareOwner != $fileOwner && ! OCP\User::userExists($fileOwner)) {
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OCP\Util::writeLog('share', 'original file owner '.$fileOwner
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.' does not exist for share '.$linkItem['id'], \OCP\Util::ERROR);
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header('HTTP/1.0 404 Not Found');
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$tmpl = new OCP\Template('', '404', 'guest');
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$tmpl->printPage();
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exit();
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}
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//mount filesystem of file owner
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OC_Util::setupFS($fileOwner);
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}
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}
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} else {
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if (isset($_GET['file']) || isset($_GET['dir'])) {
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OCP\Util::writeLog('share', 'Missing token, trying fallback file/dir links', \OCP\Util::DEBUG);
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if (isset($_GET['dir'])) {
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$type = 'folder';
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$path = $_GET['dir'];
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if (strlen($path) > 1 and substr($path, -1, 1) === '/') {
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$path = substr($path, 0, -1);
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}
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$baseDir = $path;
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$dir = $baseDir;
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} else {
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$type = 'file';
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$path = $_GET['file'];
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if (strlen($path) > 1 and substr($path, -1, 1) === '/') {
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$path = substr($path, 0, -1);
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}
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}
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$shareOwner = substr($path, 1, strpos($path, '/', 1) - 1);
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if (OCP\User::userExists($shareOwner)) {
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OC_Util::setupFS($shareOwner);
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$fileSource = getId($path);
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if ($fileSource != -1) {
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$linkItem = OCP\Share::getItemSharedWithByLink($type, $fileSource, $shareOwner);
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$pathAndUser['path'] = $path;
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$path_parts = explode('/', $path, 5);
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$pathAndUser['user'] = $path_parts[1];
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$fileOwner = $path_parts[1];
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}
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}
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}
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}
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if ($linkItem) {
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if (!isset($linkItem['item_type'])) {
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OCP\Util::writeLog('share', 'No item type set for share id: ' . $linkItem['id'], \OCP\Util::ERROR);
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header('HTTP/1.0 404 Not Found');
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$tmpl = new OCP\Template('', '404', 'guest');
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$tmpl->printPage();
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exit();
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}
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if (isset($linkItem['share_with'])) {
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// Authenticate share_with
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$url = OCP\Util::linkToPublic('files') . '&t=' . $token;
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if (isset($_GET['file'])) {
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$url .= '&file=' . urlencode($_GET['file']);
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} else {
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if (isset($_GET['dir'])) {
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$url .= '&dir=' . urlencode($_GET['dir']);
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}
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}
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if (isset($_POST['password'])) {
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$password = $_POST['password'];
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if ($linkItem['share_type'] == OCP\Share::SHARE_TYPE_LINK) {
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// Check Password
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$forcePortable = (CRYPT_BLOWFISH != 1);
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$hasher = new PasswordHash(8, $forcePortable);
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if (!($hasher->CheckPassword($password.OC_Config::getValue('passwordsalt', ''),
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$linkItem['share_with']))) {
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$tmpl = new OCP\Template('files_sharing', 'authenticate', 'guest');
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$tmpl->assign('URL', $url);
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$tmpl->assign('error', true);
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$tmpl->printPage();
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exit();
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} else {
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// Save item id in session for future requests
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$_SESSION['public_link_authenticated'] = $linkItem['id'];
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}
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} else {
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OCP\Util::writeLog('share', 'Unknown share type '.$linkItem['share_type']
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.' for share id '.$linkItem['id'], \OCP\Util::ERROR);
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header('HTTP/1.0 404 Not Found');
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$tmpl = new OCP\Template('', '404', 'guest');
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$tmpl->printPage();
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exit();
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}
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} else {
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// Check if item id is set in session
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if (!isset($_SESSION['public_link_authenticated'])
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|| $_SESSION['public_link_authenticated'] !== $linkItem['id']
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) {
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// Prompt for password
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$tmpl = new OCP\Template('files_sharing', 'authenticate', 'guest');
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$tmpl->assign('URL', $url);
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$tmpl->printPage();
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exit();
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}
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}
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}
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$basePath = substr($pathAndUser['path'], strlen('/' . $fileOwner . '/files'));
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$path = $basePath;
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if (isset($_GET['path'])) {
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$path .= $_GET['path'];
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}
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if (!$path || !\OC\Files\Filesystem::isValidPath($path) || !\OC\Files\Filesystem::file_exists($path)) {
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OCP\Util::writeLog('share', 'Invalid path ' . $path . ' for share id ' . $linkItem['id'], \OCP\Util::ERROR);
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header('HTTP/1.0 404 Not Found');
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$tmpl = new OCP\Template('', '404', 'guest');
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$tmpl->printPage();
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exit();
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}
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$dir = dirname($path);
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$file = basename($path);
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// Download the file
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if (isset($_GET['download'])) {
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if (isset($_GET['path']) && $_GET['path'] !== '') {
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if (isset($_GET['files'])) { // download selected files
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OC_Files::get($path, $_GET['files'], $_SERVER['REQUEST_METHOD'] == 'HEAD' ? true : false);
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} else {
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if (isset($_GET['path']) && $_GET['path'] != '') { // download a file from a shared directory
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OC_Files::get($dir, $file, $_SERVER['REQUEST_METHOD'] == 'HEAD' ? true : false);
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} else { // download the whole shared directory
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OC_Files::get($dir, $file, $_SERVER['REQUEST_METHOD'] == 'HEAD' ? true : false);
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}
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}
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} else { // download a single shared file
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OC_Files::get($dir, $file, $_SERVER['REQUEST_METHOD'] == 'HEAD' ? true : false);
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}
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} else {
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OCP\Util::addStyle('files_sharing', 'public');
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OCP\Util::addScript('files_sharing', 'public');
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OCP\Util::addScript('files', 'fileactions');
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$tmpl = new OCP\Template('files_sharing', 'public', 'base');
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$tmpl->assign('uidOwner', $shareOwner);
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$tmpl->assign('displayName', \OCP\User::getDisplayName($shareOwner));
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$tmpl->assign('dir', $dir);
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$tmpl->assign('filename', $file);
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$tmpl->assign('mimetype', \OC\Files\Filesystem::getMimeType($path));
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if (isset($_GET['path'])) {
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$getPath = $_GET['path'];
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} else {
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$getPath = '';
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}
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//
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$urlLinkIdentifiers= (isset($token)?'&t='.$token:'')
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.(isset($_GET['dir'])?'&dir='.$_GET['dir']:'')
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.(isset($_GET['file'])?'&file='.$_GET['file']:'');
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// Show file list
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if (\OC\Files\Filesystem::is_dir($path)) {
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OCP\Util::addStyle('files', 'files');
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OCP\Util::addScript('files', 'files');
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OCP\Util::addScript('files', 'filelist');
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OCP\Util::addscript('files', 'keyboardshortcuts');
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$files = array();
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$rootLength = strlen($basePath) + 1;
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foreach (OC_Files::getDirectoryContent($path) as $i) {
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$i['date'] = OCP\Util::formatDate($i['mtime']);
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if ($i['type'] == 'file') {
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$fileinfo = pathinfo($i['name']);
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$i['basename'] = $fileinfo['filename'];
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$i['extension'] = isset($fileinfo['extension']) ? ('.' . $fileinfo['extension']) : '';
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}
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$i['directory'] = '/' . substr($i['directory'], $rootLength);
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if ($i['directory'] == '/') {
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$i['directory'] = '';
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}
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$i['permissions'] = OCP\PERMISSION_READ;
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$files[] = $i;
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}
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// Make breadcrumb
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$breadcrumb = array();
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$pathtohere = '';
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//add base breadcrumb
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$breadcrumb[] = array('dir' => '/', 'name' => basename($basePath));
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//add subdir breadcrumbs
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foreach (explode('/', urldecode($getPath)) as $i) {
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if ($i != '') {
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$pathtohere .= '/' . $i;
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$breadcrumb[] = array('dir' => $pathtohere, 'name' => $i);
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$path = $linkItem['path'];
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if (isset($_GET['path'])) {
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$path .= $_GET['path'];
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$dir .= $_GET['path'];
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if (!\OC\Files\Filesystem::file_exists($path)) {
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header('HTTP/1.0 404 Not Found');
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$tmpl = new OCP\Template('', '404', 'guest');
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$tmpl->printPage();
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exit();
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}
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}
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$list = new OCP\Template('files', 'part.list', '');
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$list->assign('files', $files, false);
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$list->assign('publicListView', true);
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$list->assign('baseURL', OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&path=', false);
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$list->assign('downloadURL', OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&download&path=', false);
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$breadcrumbNav = new OCP\Template('files', 'part.breadcrumb', '');
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$breadcrumbNav->assign('breadcrumb', $breadcrumb, false);
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$breadcrumbNav->assign('baseURL', OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&path=', false);
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$folder = new OCP\Template('files', 'index', '');
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$folder->assign('fileList', $list->fetchPage(), false);
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$folder->assign('breadcrumb', $breadcrumbNav->fetchPage(), false);
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$folder->assign('isCreatable', false);
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$folder->assign('permissions', 0);
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$folder->assign('files', $files);
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$folder->assign('uploadMaxFilesize', 0);
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$folder->assign('uploadMaxHumanFilesize', 0);
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$folder->assign('allowZipDownload', intval(OCP\Config::getSystemValue('allowZipDownload', true)));
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$tmpl->assign('folder', $folder->fetchPage(), false);
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$tmpl->assign('allowZipDownload', intval(OCP\Config::getSystemValue('allowZipDownload', true)));
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$tmpl->assign('downloadURL', OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&download&path=' . urlencode($getPath));
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} else {
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// Show file preview if viewer is available
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if ($type == 'file') {
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$tmpl->assign('downloadURL', OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&download');
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} else {
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OCP\Util::addStyle('files_sharing', 'public');
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OCP\Util::addScript('files_sharing', 'public');
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OCP\Util::addScript('files', 'fileactions');
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$tmpl = new OCP\Template('files_sharing', 'public', 'base');
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$tmpl->assign('owner', $uidOwner);
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// Show file list
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if (\OC\Files\Filesystem::is_dir($path)) {
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OCP\Util::addStyle('files', 'files');
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OCP\Util::addScript('files', 'files');
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OCP\Util::addScript('files', 'filelist');
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$files = array();
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$rootLength = strlen($baseDir) + 1;
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foreach (OC_Files::getDirectoryContent($path) as $i) {
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$i['date'] = OCP\Util::formatDate($i['mtime']);
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if ($i['type'] == 'file') {
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$fileinfo = pathinfo($i['name']);
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$i['basename'] = $fileinfo['filename'];
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$i['extension'] = isset($fileinfo['extension']) ? ('.' . $fileinfo['extension']) : '';
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}
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$i['directory'] = '/' . substr('/' . $uidOwner . '/files' . $i['directory'], $rootLength);
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if ($i['directory'] == '/') {
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$i['directory'] = '';
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}
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$i['permissions'] = OCP\PERMISSION_READ;
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$files[] = $i;
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}
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// Make breadcrumb
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$breadcrumb = array();
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$pathtohere = '';
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$count = 1;
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foreach (explode('/', $dir) as $i) {
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if ($i != '') {
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if ($i != $baseDir) {
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$pathtohere .= '/' . $i;
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}
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if (strlen($pathtohere) < strlen($_GET['dir'])) {
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continue;
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}
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$breadcrumb[] = array('dir' => str_replace($_GET['dir'], "", $pathtohere, $count), 'name' => $i);
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}
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}
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$list = new OCP\Template('files', 'part.list', '');
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$list->assign('files', $files, false);
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$list->assign('publicListView', true);
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$list->assign('baseURL', OCP\Util::linkToPublic('files') . '&dir=' . urlencode($_GET['dir']) . '&path=', false);
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$list->assign('downloadURL', OCP\Util::linkToPublic('files') . '&download&dir=' . urlencode($_GET['dir']) . '&path=', false);
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$breadcrumbNav = new OCP\Template('files', 'part.breadcrumb', '');
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$breadcrumbNav->assign('breadcrumb', $breadcrumb, false);
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$breadcrumbNav->assign('baseURL', OCP\Util::linkToPublic('files') . '&dir=' . urlencode($_GET['dir']) . '&path=', false);
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$folder = new OCP\Template('files', 'index', '');
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$folder->assign('fileList', $list->fetchPage(), false);
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$folder->assign('breadcrumb', $breadcrumbNav->fetchPage(), false);
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$folder->assign('dir', basename($dir));
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$folder->assign('isCreatable', false);
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$folder->assign('permissions', 0);
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$folder->assign('files', $files);
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$folder->assign('uploadMaxFilesize', 0);
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$folder->assign('uploadMaxHumanFilesize', 0);
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$folder->assign('allowZipDownload', intval(OCP\Config::getSystemValue('allowZipDownload', true)));
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$tmpl->assign('folder', $folder->fetchPage(), false);
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$tmpl->assign('uidOwner', $uidOwner);
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$tmpl->assign('dir', basename($dir));
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$tmpl->assign('filename', basename($path));
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$tmpl->assign('mimetype', \OC\Files\Filesystem::getMimeType($path));
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$tmpl->assign('allowZipDownload', intval(OCP\Config::getSystemValue('allowZipDownload', true)));
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if (isset($_GET['path'])) {
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$getPath = $_GET['path'];
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} else {
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$getPath = '';
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}
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$tmpl->assign('downloadURL', OCP\Util::linkToPublic('files') . '&download&dir=' . urlencode($_GET['dir']) . '&path=' . urlencode($getPath), false);
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} else {
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// Show file preview if viewer is available
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$tmpl->assign('uidOwner', $uidOwner);
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$tmpl->assign('dir', dirname($path));
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$tmpl->assign('filename', basename($path));
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$tmpl->assign('mimetype', \OC\Files\Filesystem::getMimeType($path));
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if ($type == 'file') {
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$tmpl->assign('downloadURL', OCP\Util::linkToPublic('files') . '&file=' . urlencode($_GET['file']) . '&download', false);
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} else {
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if (isset($_GET['path'])) {
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$getPath = $_GET['path'];
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} else {
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$getPath = '';
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}
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$tmpl->assign('downloadURL', OCP\Util::linkToPublic('files') . '&download&dir=' . urlencode($_GET['dir']) . '&path=' . urlencode($getPath), false);
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}
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}
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$tmpl->printPage();
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}
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}
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$tmpl->printPage();
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}
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$list = new OCP\Template('files', 'part.list', '');
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$list->assign('files', $files, false);
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$list->assign('disableSharing', true);
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$list->assign('baseURL', OCP\Util::linkToPublic('files').$urlLinkIdentifiers.'&path=', false);
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$list->assign('downloadURL', OCP\Util::linkToPublic('files').$urlLinkIdentifiers.'&download&path=', false);
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$breadcrumbNav = new OCP\Template('files', 'part.breadcrumb', '' );
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$breadcrumbNav->assign('breadcrumb', $breadcrumb, false);
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$breadcrumbNav->assign('baseURL', OCP\Util::linkToPublic('files').$urlLinkIdentifiers.'&path=', false);
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$folder = new OCP\Template('files', 'index', '');
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$folder->assign('fileList', $list->fetchPage(), false);
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$folder->assign('breadcrumb', $breadcrumbNav->fetchPage(), false);
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$folder->assign('dir', basename($dir));
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$folder->assign('isCreatable', false);
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$folder->assign('permissions', 0);
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$folder->assign('files', $files);
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$folder->assign('uploadMaxFilesize', 0);
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$folder->assign('uploadMaxHumanFilesize', 0);
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$folder->assign('allowZipDownload', intval(OCP\Config::getSystemValue('allowZipDownload', true)));
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$tmpl->assign('folder', $folder->fetchPage(), false);
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$tmpl->assign('allowZipDownload', intval(OCP\Config::getSystemValue('allowZipDownload', true)));
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$tmpl->assign('downloadURL', OCP\Util::linkToPublic('files')
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.$urlLinkIdentifiers.'&download&path='.urlencode($getPath));
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} else {
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OCP\Util::writeLog('share', 'could not resolve linkItem', \OCP\Util::DEBUG);
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}
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}
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}
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header('HTTP/1.0 404 Not Found');
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$tmpl = new OCP\Template('', '404', 'guest');
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$tmpl->printPage();
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