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sources/apps/files_sharing/public.php
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<?php
// Load other apps for file previews
OC_App::loadApps();
function fileCmp($a, $b) {
if ($a['type'] == 'dir' and $b['type'] != 'dir') {
return -1;
} elseif ($a['type'] != 'dir' and $b['type'] == 'dir') {
return 1;
} else {
return strnatcasecmp($a['name'], $b['name']);
}
}
if (isset($_GET['t'])) {
$token = $_GET['t'];
$linkItem = OCP\Share::getShareByToken($token);
if (is_array($linkItem) && isset($linkItem['uid_owner'])) {
// seems to be a valid share
$type = $linkItem['item_type'];
$fileSource = $linkItem['file_source'];
$shareOwner = $linkItem['uid_owner'];
$path = null;
$rootLinkItem = OCP\Share::resolveReShare($linkItem);
$fileOwner = $rootLinkItem['uid_owner'];
if (isset($fileOwner)) {
OC_Util::tearDownFS();
OC_Util::setupFS($fileOwner);
$path = \OC\Files\Filesystem::getPath($linkItem['file_source']);
}
}
}
if (isset($path)) {
if (!isset($linkItem['item_type'])) {
OCP\Util::writeLog('share', 'No item type set for share id: ' . $linkItem['id'], \OCP\Util::ERROR);
header('HTTP/1.0 404 Not Found');
$tmpl = new OCP\Template('', '404', 'guest');
$tmpl->printPage();
exit();
}
if (isset($linkItem['share_with'])) {
// Authenticate share_with
$url = OCP\Util::linkToPublic('files') . '&t=' . $token;
if (isset($_GET['file'])) {
$url .= '&file=' . urlencode($_GET['file']);
} else {
if (isset($_GET['dir'])) {
$url .= '&dir=' . urlencode($_GET['dir']);
}
}
if (isset($_POST['password'])) {
$password = $_POST['password'];
if ($linkItem['share_type'] == OCP\Share::SHARE_TYPE_LINK) {
// Check Password
$forcePortable = (CRYPT_BLOWFISH != 1);
$hasher = new PasswordHash(8, $forcePortable);
if (!($hasher->CheckPassword($password.OC_Config::getValue('passwordsalt', ''),
$linkItem['share_with']))) {
$tmpl = new OCP\Template('files_sharing', 'authenticate', 'guest');
$tmpl->assign('URL', $url);
$tmpl->assign('wrongpw', true);
$tmpl->printPage();
exit();
} else {
// Save item id in session for future requests
$_SESSION['public_link_authenticated'] = $linkItem['id'];
}
} else {
OCP\Util::writeLog('share', 'Unknown share type '.$linkItem['share_type']
.' for share id '.$linkItem['id'], \OCP\Util::ERROR);
header('HTTP/1.0 404 Not Found');
$tmpl = new OCP\Template('', '404', 'guest');
$tmpl->printPage();
exit();
}
} else {
// Check if item id is set in session
if (!isset($_SESSION['public_link_authenticated'])
|| $_SESSION['public_link_authenticated'] !== $linkItem['id']
) {
// Prompt for password
$tmpl = new OCP\Template('files_sharing', 'authenticate', 'guest');
$tmpl->assign('URL', $url);
$tmpl->printPage();
exit();
}
}
}
$basePath = $path;
if (isset($_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($_GET['download'])) {
if (isset($_GET['files'])) { // download selected files
$files = urldecode($_GET['files']);
$files_list = json_decode($files);
// in case we get only a single file
if ($files_list === NULL ) {
$files_list = array($files);
}
OC_Files::get($path, $files_list, $_SERVER['REQUEST_METHOD'] == 'HEAD' ? true : false);
} else {
OC_Files::get($dir, $file, $_SERVER['REQUEST_METHOD'] == 'HEAD' ? true : false);
}
exit();
} else {
OCP\Util::addScript('files', 'file-upload');
OCP\Util::addStyle('files_sharing', 'public');
OCP\Util::addScript('files_sharing', 'public');
OCP\Util::addScript('files', 'fileactions');
OCP\Util::addScript('files', 'jquery.iframe-transport');
OCP\Util::addScript('files', 'jquery.fileupload');
$maxUploadFilesize=OCP\Util::maxUploadFilesize($path);
$tmpl = new OCP\Template('files_sharing', 'public', 'base');
$tmpl->assign('uidOwner', $shareOwner);
$tmpl->assign('displayName', \OCP\User::getDisplayName($shareOwner));
$tmpl->assign('filename', $file);
$tmpl->assign('directory_path', $linkItem['file_target']);
$tmpl->assign('mimetype', \OC\Files\Filesystem::getMimeType($path));
$tmpl->assign('fileTarget', basename($linkItem['file_target']));
$tmpl->assign('dirToken', $linkItem['token']);
$allowPublicUploadEnabled = (($linkItem['permissions'] & OCP\PERMISSION_CREATE) ? true : false );
if (\OCP\App::isEnabled('files_encryption')) {
$allowPublicUploadEnabled = false;
}
if (OC_Appconfig::getValue('core', 'shareapi_allow_public_upload', 'yes') === 'no') {
$allowPublicUploadEnabled = false;
}
if ($linkItem['item_type'] !== 'folder') {
$allowPublicUploadEnabled = false;
}
$tmpl->assign('allowPublicUploadEnabled', $allowPublicUploadEnabled);
$tmpl->assign('uploadMaxFilesize', $maxUploadFilesize);
$tmpl->assign('uploadMaxHumanFilesize', OCP\Util::humanFileSize($maxUploadFilesize));
$urlLinkIdentifiers= (isset($token)?'&t='.$token:'')
.(isset($_GET['dir'])?'&dir='.$_GET['dir']:'')
.(isset($_GET['file'])?'&file='.$_GET['file']:'');
// Show file list
if (\OC\Files\Filesystem::is_dir($path)) {
$tmpl->assign('dir', $getPath);
OCP\Util::addStyle('files', 'files');
OCP\Util::addScript('files', 'files');
OCP\Util::addScript('files', 'filelist');
OCP\Util::addscript('files', 'keyboardshortcuts');
$files = array();
$rootLength = strlen($basePath) + 1;
$totalSize = 0;
foreach (\OC\Files\Filesystem::getDirectoryContent($path) as $i) {
$totalSize += $i['size'];
$i['date'] = OCP\Util::formatDate($i['mtime']);
if ($i['type'] == 'file') {
$fileinfo = pathinfo($i['name']);
$i['basename'] = $fileinfo['filename'];
if (!empty($fileinfo['extension'])) {
$i['extension'] = '.' . $fileinfo['extension'];
} else {
$i['extension'] = '';
}
}
$i['directory'] = $getPath;
$i['permissions'] = OCP\PERMISSION_READ;
$files[] = $i;
}
usort($files, "fileCmp");
// Make breadcrumb
$breadcrumb = array();
$pathtohere = '';
foreach (explode('/', $getPath) as $i) {
if ($i != '') {
$pathtohere .= '/' . $i;
$breadcrumb[] = array('dir' => $pathtohere, 'name' => $i);
}
}
$list = new OCP\Template('files', 'part.list', '');
$list->assign('files', $files);
$list->assign('disableSharing', true);
$list->assign('baseURL', OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&path=');
$list->assign('downloadURL',
OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&download&path=');
$breadcrumbNav = new OCP\Template('files', 'part.breadcrumb', '');
$breadcrumbNav->assign('breadcrumb', $breadcrumb);
$breadcrumbNav->assign('baseURL', OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&path=');
$maxUploadFilesize=OCP\Util::maxUploadFilesize($path);
$folder = new OCP\Template('files', 'index', '');
$folder->assign('fileList', $list->fetchPage());
$folder->assign('breadcrumb', $breadcrumbNav->fetchPage());
$folder->assign('dir', $getPath);
$folder->assign('isCreatable', false);
$folder->assign('permissions', OCP\PERMISSION_READ);
$folder->assign('isPublic',true);
$folder->assign('publicUploadEnabled', 'no');
$folder->assign('files', $files);
$folder->assign('uploadMaxFilesize', $maxUploadFilesize);
$folder->assign('uploadMaxHumanFilesize', OCP\Util::humanFileSize($maxUploadFilesize));
$folder->assign('allowZipDownload', intval(OCP\Config::getSystemValue('allowZipDownload', true)));
$folder->assign('usedSpacePercent', 0);
$tmpl->assign('folder', $folder->fetchPage());
$allowZip = OCP\Config::getSystemValue('allowZipDownload', true)
&& $totalSize <= OCP\Config::getSystemValue('maxZipInputSize', OCP\Util::computerFileSize('800 MB'));
$tmpl->assign('allowZipDownload', intval($allowZip));
$tmpl->assign('downloadURL',
OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&download&path=' . urlencode($getPath));
} else {
$tmpl->assign('dir', $dir);
// Show file preview if viewer is available
if ($type == 'file') {
$tmpl->assign('downloadURL', OCP\Util::linkToPublic('files') . $urlLinkIdentifiers . '&download');
} else {
$tmpl->assign('downloadURL', OCP\Util::linkToPublic('files')
.$urlLinkIdentifiers.'&download&path='.urlencode($getPath));
}
}
$tmpl->printPage();
}
exit();
} else {
OCP\Util::writeLog('share', 'could not resolve linkItem', \OCP\Util::DEBUG);
}
header('HTTP/1.0 404 Not Found');
$tmpl = new OCP\Template('', '404', 'guest');
$tmpl->printPage();
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