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|
<?php
/**
* ownCloud - Richdocuments App
*
* @author Victor Dubiniuk
* @copyright 2014 Victor Dubiniuk victor.dubiniuk@gmail.com
*
* This file is licensed under the Affero General Public License version 3 or
* later.
*/
namespace OCA\Richdocuments\Controller;
use OCA\Richdocuments\AppInfo\Application;
use OCA\Richdocuments\Db\Wopi;
use OCA\Richdocuments\Events\BeforeFederationRedirectEvent;
use OCA\Richdocuments\Service\FederationService;
use OCA\Richdocuments\TokenManager;
use \OCP\AppFramework\Controller;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\JSONResponse;
use OCP\AppFramework\Http\RedirectResponse;
use OCP\AppFramework\Services\IInitialState;
use OCP\Constants;
use OCP\Files\File;
use OCP\Files\Folder;
use OCP\Files\GenericFileException;
use OCP\Files\IRootFolder;
use OCP\Files\Node;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use \OCP\IRequest;
use \OCP\IConfig;
use \OCP\IL10N;
use \OCP\ILogger;
use \OCP\AppFramework\Http\ContentSecurityPolicy;
use \OCP\AppFramework\Http\FeaturePolicy;
use \OCP\AppFramework\Http\TemplateResponse;
use \OCA\Richdocuments\AppConfig;
use \OCA\Richdocuments\Helper;
use OCP\ISession;
use OCP\Share\Exceptions\ShareNotFound;
use OCP\Share\IManager;
use OC\Files\Type\TemplateManager;
class DocumentController extends Controller {
/** @var string */
private $uid;
/** @var IL10N */
private $l10n;
/** @var IConfig */
private $config;
/** @var AppConfig */
private $appConfig;
/** @var ILogger */
private $logger;
/** @var IManager */
private $shareManager;
/** @var TokenManager */
private $tokenManager;
/** @var ISession */
private $session;
/** @var IRootFolder */
private $rootFolder;
/** @var \OCA\Richdocuments\TemplateManager */
private $templateManager;
/** @var FederationService */
private $federationService;
/** @var IInitialState */
private $initialState;
const ODT_TEMPLATE_PATH = '/assets/odttemplate.odt';
public function __construct(
$appName,
IRequest $request,
IConfig $config,
AppConfig $appConfig,
IL10N $l10n,
IManager $shareManager,
TokenManager $tokenManager,
IRootFolder $rootFolder,
ISession $session,
$UserId,
ILogger $logger,
\OCA\Richdocuments\TemplateManager $templateManager,
FederationService $federationService,
Helper $helper,
IInitialState $initialState
) {
parent::__construct($appName, $request);
$this->uid = $UserId;
$this->l10n = $l10n;
$this->config = $config;
$this->appConfig = $appConfig;
$this->shareManager = $shareManager;
$this->tokenManager = $tokenManager;
$this->rootFolder = $rootFolder;
$this->session = $session;
$this->logger = $logger;
$this->templateManager = $templateManager;
$this->federationService = $federationService;
$this->initialState = $initialState;
}
/**
* @PublicPage
* @NoCSRFRequired
*
* Returns the access_token and urlsrc for WOPI access for given $fileId
* Requests is accepted only when a secret_token is provided set by admin in
* settings page
*
* @param string $fileId
* @return array access_token, urlsrc
*/
public function extAppGetData($fileId) {
$secretToken = $this->request->getParam('secret_token');
$apps = array_filter(explode(',', $this->appConfig->getAppValue('external_apps')));
foreach($apps as $app) {
if ($app !== '' && $secretToken === $app) {
$appName = explode(':', $app);
$this->logger->debug('External app "{extApp}" authenticated; issuing access token for fileId {fileId}', [
'app' => $this->appName,
'extApp' => $appName[0],
'fileId' => $fileId
]);
try {
$folder = $this->rootFolder->getUserFolder($this->uid);
$item = $folder->getById($fileId)[0];
if(!($item instanceof Node)) {
throw new \Exception();
}
list($urlSrc, $token) = $this->tokenManager->getToken($item->getId());
return [
'status' => 'success',
'urlsrc' => $urlSrc,
'token' => $token
];
} catch (\Exception $e) {
$this->logger->logException($e, ['app'=>'richdocuments']);
}
}
}
return [
'status' => 'error',
'message' => 'Permission denied'
];
}
/**
* Strips the path and query parameters from the URL.
*
* @param string $url
* @return string
*/
private function domainOnly($url) {
$parsed_url = parse_url($url);
$scheme = isset($parsed_url['scheme']) ? $parsed_url['scheme'] . '://' : '';
$host = isset($parsed_url['host']) ? $parsed_url['host'] : '';
$port = isset($parsed_url['port']) ? ':' . $parsed_url['port'] : '';
return "$scheme$host$port";
}
/**
* Setup policy headers for the response
*/
private function setupPolicy($response) {
$wopiDomain = $this->domainOnly($this->appConfig->getAppValue('public_wopi_url'));
$policy = new ContentSecurityPolicy();
$policy->addAllowedFrameDomain($wopiDomain);
$policy->allowInlineScript(true);
$response->setContentSecurityPolicy($policy);
$featurePolicy = new FeaturePolicy();
$featurePolicy->addAllowedFullScreenDomain($wopiDomain);
$response->setFeaturePolicy($featurePolicy);
}
private function provideDocumentInitialState(Wopi $wopi) {
$this->initialState->provideInitialState('wopi', $wopi);
$this->initialState->provideInitialState('uiDefaults', [
'UIMode' => $this->config->getAppValue(Application::APPNAME, 'uiDefaults-UIMode', 'classic')
]);
$logoSet = $this->config->getAppValue('theming', 'logoheaderMime', '') !== '';
if (!$logoSet) {
$logoSet = $this->config->getAppValue('theming', 'logoMime', '') !== '';
}
$this->initialState->provideInitialState('theming-customLogo', ($logoSet ?
\OC::$server->getURLGenerator()->getAbsoluteURL(\OC::$server->getThemingDefaults()->getLogo())
: false));
}
/**
* @NoAdminRequired
*
* @param string $fileId
* @param string|null $path
* @return RedirectResponse|TemplateResponse
*/
public function index($fileId, $path = null) {
try {
$folder = $this->rootFolder->getUserFolder($this->uid);
if ($path !== null) {
$item = $folder->get($path);
} else {
$item = $folder->getById($fileId)[0];
}
if(!($item instanceof File)) {
throw new \Exception();
}
/**
* Open file on source instance if it is originating from a federated share
* The generated url will result in {@link remote()}
*/
$federatedUrl = $this->federationService->getRemoteRedirectURL($item);
if ($federatedUrl !== null) {
$response = new RedirectResponse($federatedUrl);
$response->addHeader('X-Frame-Options', 'ALLOW');
return $response;
}
list($urlSrc, $token, $wopi) = $this->tokenManager->getToken($item->getId());
$params = [
'permissions' => $item->getPermissions(),
'title' => $item->getName(),
'fileId' => $item->getId() . '_' . $this->config->getSystemValue('instanceid'),
'token' => $token,
'urlsrc' => $urlSrc,
'path' => $folder->getRelativePath($item->getPath()),
'instanceId' => $this->config->getSystemValue('instanceid'),
'canonical_webroot' => $this->appConfig->getAppValue('canonical_webroot'),
'userId' => $this->uid
];
$encryptionManager = \OC::$server->getEncryptionManager();
if ($encryptionManager->isEnabled())
{
// Update the current file to be accessible with system public shared key
$owner = $item->getOwner()->getUID();
$absPath = '/' . $owner . '/' . $item->getInternalPath();
$accessList = \OC::$server->getEncryptionFilesHelper()->getAccessList($absPath);
$accessList['public'] = true;
$encryptionManager->getEncryptionModule()->update($absPath, $owner, $accessList);
}
$this->provideDocumentInitialState($wopi);
$response = new TemplateResponse('richdocuments', 'documents', $params, 'base');
$this->setupPolicy($response);
return $response;
} catch (\Exception $e) {
$this->logger->logException($e, ['app'=>'richdocuments']);
return $this->renderErrorPage('Failed to open the requested file.');
}
}
/**
* @NoAdminRequired
*
* Create a new file from a template
*
* @param int $templateId
* @param string $fileName
* @param string $dir
* @return TemplateResponse
* @throws NotFoundException
* @throws NotPermittedException
* @throws \OCP\Files\InvalidPathException
*/
public function createFromTemplate($templateId, $fileName, $dir) {
if (!$this->templateManager->isTemplate($templateId)) {
return new TemplateResponse('core', '403', [], 'guest');
}
$userFolder = $this->rootFolder->getUserFolder($this->uid);
try {
$folder = $userFolder->get($dir);
} catch (NotFoundException $e) {
return new TemplateResponse('core', '403', [], 'guest');
}
if (!$folder instanceof Folder) {
return new TemplateResponse('core', '403', [], 'guest');
}
$file = $folder->newFile($fileName);
$template = $this->templateManager->get($templateId);
list($urlSrc, $wopi) = $this->tokenManager->getTokenForTemplate($template, $this->uid, $file->getId());
$wopiFileId = $wopi->getFileid() . '_' . $this->config->getSystemValue('instanceid');
$params = [
'permissions' => $template->getPermissions(),
'title' => $fileName,
'fileId' => $wopiFileId,
'token' => $wopi->getToken(),
'urlsrc' => $urlSrc,
'path' => $userFolder->getRelativePath($file->getPath()),
'instanceId' => $this->config->getSystemValue('instanceid'),
'canonical_webroot' => $this->appConfig->getAppValue('canonical_webroot'),
'userId' => $this->uid
];
$this->provideDocumentInitialState($wopi);
$response = new TemplateResponse('richdocuments', 'documents', $params, 'base');
$this->setupPolicy($response);
return $response;
}
/**
* @PublicPage
* @NoCSRFRequired
*
* @param string $shareToken
* @param string $fileName
* @return TemplateResponse|RedirectResponse
* @throws \Exception
*/
public function publicPage($shareToken, $fileName, $fileId) {
try {
$share = $this->shareManager->getShareByToken($shareToken);
// not authenticated ?
if($share->getPassword()){
if (!$this->session->exists('public_link_authenticated')
|| $this->session->get('public_link_authenticated') !== (string)$share->getId()
) {
throw new \Exception('Invalid password');
}
}
if (($share->getPermissions() & Constants::PERMISSION_READ) === 0) {
return new TemplateResponse('core', '403', [], 'guest');
}
$node = $share->getNode();
if($node instanceof Folder) {
$item = $node->getById($fileId)[0];
} else {
$item = $node;
}
$federatedUrl = $this->federationService->getRemoteRedirectURL($item, null, $share);
if ($federatedUrl !== null) {
$response = new RedirectResponse($federatedUrl);
$response->addHeader('X-Frame-Options', 'ALLOW');
return $response;
}
if ($item instanceof Node) {
$params = [
'permissions' => $share->getPermissions(),
'title' => $item->getName(),
'fileId' => $item->getId() . '_' . $this->config->getSystemValue('instanceid'),
'path' => '/',
'instanceId' => $this->config->getSystemValue('instanceid'),
'canonical_webroot' => $this->appConfig->getAppValue('canonical_webroot'),
'userId' => $this->uid,
];
list($urlSrc, $token, $wopi) = $this->tokenManager->getToken($item->getId(), $shareToken, $this->uid);
$params['token'] = $token;
$params['urlsrc'] = $urlSrc;
$this->provideDocumentInitialState($wopi);
$response = new TemplateResponse('richdocuments', 'documents', $params, 'base');
$this->setupPolicy($response);
return $response;
}
} catch (\Exception $e) {
$this->logger->logException($e, ['app'=>'richdocuments']);
return $this->renderErrorPage('Failed to open the requested file.');
}
return new TemplateResponse('core', '403', [], 'guest');
}
/**
* Redirect to the files app with proper CSP headers set for federated editing
* This is a workaround since we cannot set a nonce for allowing dynamic URLs in the richdocument iframe
*
* @NoAdminRequired
* @NoCSRFRequired
*/
public function openRemoteFile($fileId) {
try {
$folder = $this->rootFolder->getUserFolder($this->uid);
$item = $folder->getById($fileId)[0];
if (!($item instanceof File)) {
throw new \Exception('Node is not a file');
}
if ($item->getStorage()->instanceOfStorage(\OCA\Files_Sharing\External\Storage::class)) {
$remote = $item->getStorage()->getRemote();
$remoteCollabora = $this->federationService->getRemoteCollaboraURL($remote);
if ($remoteCollabora !== '') {
$absolute = $item->getParent()->getPath();
$relativeFolderPath = $folder->getRelativePath($absolute);
$relativeFilePath = $folder->getRelativePath($item->getPath());
$url = '/index.php/apps/files/?dir=' . $relativeFolderPath .
'&richdocuments_open=' . $relativeFilePath .
'&richdocuments_fileId=' . $fileId .
'&richdocuments_remote_access=' . $remote;
$event = new BeforeFederationRedirectEvent(
$item, $relativeFolderPath, $remote
);
$eventDispatcher = \OC::$server->getEventDispatcher();
$eventDispatcher->dispatch(BeforeFederationRedirectEvent::class, $event);
if ($event->getRedirectUrl()) {
$url = $event->getRedirectUrl();
}
return new RedirectResponse($url);
}
$this->logger->warning('Failed to connect to remote collabora instance for ' . $fileId);
}
} catch (\Exception $e) {
$this->logger->logException($e, ['app'=>'richdocuments']);
return $this->renderErrorPage('Failed to open the requested file.');
}
return new TemplateResponse('core', '403', [], 'guest');
}
/**
* Open file on Source instance with token from Initiator instance
*
* @PublicPage
* @NoCSRFRequired
*
* @param string $shareToken
* @param $remoteServer
* @param $remoteServerToken
* @param null $filePath
* @return TemplateResponse
*/
public function remote($shareToken, $remoteServer, $remoteServerToken, $filePath = null) {
try {
$share = $this->shareManager->getShareByToken($shareToken);
// not authenticated ?
if($share->getPassword()){
if (!$this->session->exists('public_link_authenticated')
|| $this->session->get('public_link_authenticated') !== (string)$share->getId()
) {
throw new \Exception('Invalid password');
}
}
if (($share->getPermissions() & Constants::PERMISSION_READ) === 0) {
return new TemplateResponse('core', '403', [], 'guest');
}
$node = $share->getNode();
if ($filePath !== null) {
$node = $node->get($filePath);
}
if ($node instanceof Node) {
list($urlSrc, $token, $wopi) = $this->tokenManager->getToken($node->getId(), $shareToken, $this->uid);
$remoteWopi = $this->federationService->getRemoteFileDetails($remoteServer, $remoteServerToken);
if ($remoteWopi === null) {
throw new \Exception('Invalid remote file details for ' . $remoteServerToken);
}
$this->tokenManager->upgradeToRemoteToken($wopi, $remoteWopi, $shareToken, $remoteServer, $remoteServerToken);
$permissions = $share->getPermissions();
if (!$remoteWopi->getCanwrite()) {
$permissions = $permissions & ~ Constants::PERMISSION_UPDATE;
}
$params = [
'permissions' => $permissions,
'title' => $node->getName(),
'fileId' => $node->getId() . '_' . $this->config->getSystemValue('instanceid'),
'token' => $token,
'urlsrc' => $urlSrc,
'path' => '/',
'instanceId' => $this->config->getSystemValue('instanceid'),
'canonical_webroot' => $this->appConfig->getAppValue('canonical_webroot'),
'userId' => $remoteWopi->getEditorUid() ? ($remoteWopi->getEditorUid() . '@' . $remoteServer) : null,
];
$this->provideDocumentInitialState($wopi);
$response = new TemplateResponse('richdocuments', 'documents', $params, 'base');
$remoteWopi = $this->domainOnly($this->appConfig->getAppValue('wopi_url'));
$policy = new ContentSecurityPolicy();
$policy->addAllowedFrameDomain($remoteWopi);
$policy->allowInlineScript(true);
$policy->addAllowedFrameAncestorDomain('https://*');
$response->setContentSecurityPolicy($policy);
$featurePolicy = new FeaturePolicy();
$featurePolicy->addAllowedFullScreenDomain($remoteWopi);
$response->setFeaturePolicy($featurePolicy);
$response->addHeader('X-Frame-Options', 'ALLOW');
return $response;
}
} catch (ShareNotFound $e) {
return new TemplateResponse('core', '404', [], 'guest');
} catch (\Exception $e) {
$this->logger->logException($e, ['app'=>'richdocuments']);
return $this->renderErrorPage('Failed to open the requested file.');
}
return new TemplateResponse('core', '403', [], 'guest');
}
/**
* @NoAdminRequired
*
* @param string $mimetype
* @param string $filename
* @param string $dir
* @return JSONResponse
* @throws NotPermittedException
* @throws GenericFileException
*/
public function create($mimetype,
$filename,
$dir = '/'){
$root = $this->rootFolder->getUserFolder($this->uid);
try {
/** @var Folder $folder */
$folder = $root->get($dir);
} catch (NotFoundException $e) {
return new JSONResponse([
'status' => 'error',
'message' => $this->l10n->t('Cannot create document')
], Http::STATUS_BAD_REQUEST);
}
if (!($folder instanceof Folder)) {
return new JSONResponse([
'status' => 'error',
'message' => $this->l10n->t('Cannot create document')
], Http::STATUS_BAD_REQUEST);
}
$basename = $this->l10n->t('New Document.odt');
switch ($mimetype) {
case 'application/vnd.oasis.opendocument.spreadsheet':
$basename = $this->l10n->t('New Spreadsheet.ods');
break;
case 'application/vnd.oasis.opendocument.presentation':
$basename = $this->l10n->t('New Presentation.odp');
break;
case 'application/vnd.openxmlformats-officedocument.wordprocessingml.document':
$basename = $this->l10n->t('New Document.docx');
break;
case 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet':
$basename = $this->l10n->t('New Spreadsheet.xlsx');
break;
case 'application/vnd.openxmlformats-officedocument.presentationml.presentation':
$basename = $this->l10n->t('New Presentation.pptx');
break;
default:
// to be safe
$mimetype = 'application/vnd.oasis.opendocument.text';
break;
}
if (!$filename){
$filename = Helper::getNewFileName($folder, $basename);
}
if ($folder->nodeExists($filename)) {
return new JSONResponse([
'status' => 'error',
'message' => $this->l10n->t('Document already exists')
], Http::STATUS_BAD_REQUEST);
}
try {
$file = $folder->newFile($filename);
} catch (NotPermittedException $e) {
return new JSONResponse([
'status' => 'error',
'message' => $this->l10n->t('Not allowed to create document')
], Http::STATUS_BAD_REQUEST);
}
$content = '';
if (class_exists(TemplateManager::class)){
$manager = \OC_Helper::getFileTemplateManager();
$content = $manager->getTemplate($mimetype);
}
if (!$content){
$content = file_get_contents(dirname(dirname(__DIR__)) . self::ODT_TEMPLATE_PATH);
}
if ($content) {
$file->putContent($content);
return new JSONResponse([
'status' => 'success',
'data' => \OCA\Files\Helper::formatFileInfo($file->getFileInfo())
]);
}
return new JSONResponse([
'status' => 'error',
'message' => $this->l10n->t('Cannot create document')
]);
}
private function renderErrorPage($message) {
$params = [
'errors' => [['error' => $message]]
];
return new TemplateResponse('core', 'error', $params, 'guest');
}
}
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