richdocuments/lib/Controller/DocumentController.php
raul e0bb28d04a Fix: Hide local editing button for public shares
Signed-off-by: raul <raul@nextcloud.com>
2022-09-26 19:32:53 +02:00

412 lines
13 KiB
PHP

<?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\Service\FederationService;
use OCA\Richdocuments\Service\InitialStateService;
use OCA\Richdocuments\TemplateManager;
use OCA\Richdocuments\TokenManager;
use \OCP\AppFramework\Controller;
use OCP\AppFramework\Http\RedirectResponse;
use OCP\Constants;
use OCP\Files\File;
use OCP\Files\Folder;
use OCP\Files\IRootFolder;
use OCP\Files\Node;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use \OCP\IRequest;
use \OCP\IConfig;
use \OCP\ILogger;
use \OCP\AppFramework\Http\TemplateResponse;
use \OCA\Richdocuments\AppConfig;
use OCP\ISession;
use OCP\Share\Exceptions\ShareNotFound;
use OCP\Share\IManager;
class DocumentController extends Controller {
use DocumentTrait;
/** @var string */
private $uid;
/** @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 TemplateManager */
private $templateManager;
/** @var FederationService */
private $federationService;
/** @var InitialStateService */
private $initialState;
public function __construct(
$appName,
IRequest $request,
IConfig $config,
AppConfig $appConfig,
IManager $shareManager,
TokenManager $tokenManager,
IRootFolder $rootFolder,
ISession $session,
$UserId,
ILogger $logger,
TemplateManager $templateManager,
FederationService $federationService,
InitialStateService $initialState
) {
parent::__construct($appName, $request);
$this->uid = $UserId;
$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'
];
}
/**
* @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;
}
$templateFile = $this->templateManager->getTemplateSource($item->getId());
if ($templateFile) {
list($urlSrc, $wopi) = $this->tokenManager->getTokenForTemplate($templateFile, $this->uid, $item->getId());
$token = $wopi->getToken();
} else {
list($urlSrc, $token, $wopi) = $this->tokenManager->getToken($item->getId());
}
$params = [
'permissions' => $item->getPermissions(),
'title' => $item->getName(),
'fileId' => $item->getId() . '_' . $this->config->getSystemValue('instanceid'),
'token' => $token,
'token_ttl' => $wopi->getExpiry(),
'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);
}
$this->initialState->provideDocument($wopi);
$response = new TemplateResponse('richdocuments', 'documents', $params, 'base');
$this->applyPolicies($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(),
'token_ttl' => $wopi->getExpiry(),
'urlsrc' => $urlSrc,
'path' => $userFolder->getRelativePath($file->getPath()),
'instanceId' => $this->config->getSystemValue('instanceid'),
'canonical_webroot' => $this->appConfig->getAppValue('canonical_webroot'),
'userId' => $this->uid
];
$this->initialState->provideDocument($wopi);
$response = new TemplateResponse('richdocuments', 'documents', $params, 'base');
$this->applyPolicies($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' => $this->uid,
'isPublicShare' => true,
];
list($urlSrc, $token, $wopi) = $this->tokenManager->getToken($item->getId(), $shareToken, $this->uid);
$params['token'] = $token;
$params['token_ttl'] = $wopi->getExpiry();
$params['urlsrc'] = $urlSrc;
$this->initialState->provideDocument($wopi);
$response = new TemplateResponse('richdocuments', 'documents', $params, 'base');
$this->applyPolicies($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');
}
/**
* 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,
'token_ttl' => $wopi->getExpiry(),
'urlsrc' => $urlSrc,
'path' => '/',
'instanceId' => $this->config->getSystemValue('instanceid'),
'canonical_webroot' => $this->appConfig->getAppValue('canonical_webroot'),
'userId' => $remoteWopi->getEditorUid() ? ($remoteWopi->getEditorUid() . '@' . $remoteServer) : null,
];
$this->initialState->provideDocument($wopi);
$response = new TemplateResponse('richdocuments', 'documents', $params, 'base');
$this->applyPolicies($response);
return $response;
}
} catch (ShareNotFound $e) {
return new TemplateResponse('core', '404', [], 'guest');
} catch (\Exception $e) {
$this->logger->logException($e, ['app' => 'richdocuments']);
return $this->renderErrorPage('Failed to open the requested file.');
}
return new TemplateResponse('core', '403', [], 'guest');
}
private function renderErrorPage($message) {
$params = [
'errors' => [['error' => $message]]
];
return new TemplateResponse('core', 'error', $params, 'guest');
}
}