Pluggable share provider

Signed-off-by: Carl Schwan <carl@carlschwan.eu>
Signed-off-by: Louis Chemineau <louis@chmn.me>

1 files changed, 33 insertions, 217 deletions

diff --git a/apps/files_sharing/lib/Controller/ShareController.php b/apps/files_sharing/lib/Controller/ShareController.php
index 6a6fd1c9f7f..ae21259e21e 100644
--- a/apps/files_sharing/lib/Controller/ShareController.php
+++ b/apps/files_sharing/lib/Controller/ShareController.php
@@ -77,6 +77,7 @@ use OCP\Share;
 use OCP\Share\Exceptions\ShareNotFound;
 use OCP\Share\IManager as ShareManager;
 use OCP\Share\IShare;
+use OCP\Share\IPublicShareTemplateFactory;
 use OCP\Template;
 
 /**
@@ -99,24 +100,28 @@ class ShareController extends AuthPublicShareController {
 	protected ShareManager $shareManager;
 	protected ISecureRandom $secureRandom;
 	protected ?Share\IShare $share = null;
-
-	public function __construct(string $appName,
-								IRequest $request,
-								IConfig $config,
-								IURLGenerator $urlGenerator,
-								IUserManager $userManager,
-								ILogger $logger,
-								\OCP\Activity\IManager $activityManager,
-								ShareManager $shareManager,
-								ISession $session,
-								IPreview $previewManager,
-								IRootFolder $rootFolder,
-								FederatedShareProvider $federatedShareProvider,
-								IAccountManager $accountManager,
-								IEventDispatcher $eventDispatcher,
-								IL10N $l10n,
-								ISecureRandom $secureRandom,
-								Defaults $defaults) {
+	private IPublicShareTemplateFactory $publicShareTemplateFactory;
+
+	public function __construct(
+		string $appName,
+		IRequest $request,
+		IConfig $config,
+		IURLGenerator $urlGenerator,
+		IUserManager $userManager,
+		ILogger $logger,
+		\OCP\Activity\IManager $activityManager,
+		ShareManager $shareManager,
+		ISession $session,
+		IPreview $previewManager,
+		IRootFolder $rootFolder,
+		FederatedShareProvider $federatedShareProvider,
+		IAccountManager $accountManager,
+		IEventDispatcher $eventDispatcher,
+		IL10N $l10n,
+		ISecureRandom $secureRandom,
+		Defaults $defaults,
+		IPublicShareTemplateFactory $publicShareTemplateFactory
+	) {
 		parent::__construct($appName, $request, $session, $urlGenerator);
 
 		$this->config = $config;
@@ -132,6 +137,7 @@ class ShareController extends AuthPublicShareController {
 		$this->secureRandom = $secureRandom;
 		$this->defaults = $defaults;
 		$this->shareManager = $shareManager;
+		$this->publicShareTemplateFactory = $publicShareTemplateFactory;
 	}
 
 	public const SHARE_ACCESS = 'access';
@@ -367,6 +373,15 @@ class ShareController extends AuthPublicShareController {
 
 		$shareNode = $share->getNode();
 
+		try {
+			$templateProvider = $this->publicShareTemplateFactory->getProvider($share);
+			$response = $templateProvider->renderPage($share, $this->getToken(), $path);
+		} catch (NotFoundException $e) {
+			$this->emitAccessShareHook($share, 404, 'Share not found');
+			$this->emitShareAccessEvent($share, ShareController::SHARE_ACCESS, 404, 'Share not found');
+			throw new NotFoundException();
+		}
+
 		// We can't get the path of a file share
 		try {
 			if ($shareNode instanceof \OCP\Files\File && $path !== '') {
@@ -380,205 +395,6 @@ class ShareController extends AuthPublicShareController {
 			throw $e;
 		}
 
-		$shareTmpl = [];
-		$shareTmpl['owner'] = '';
-		$shareTmpl['shareOwner'] = '';
-
-		$owner = $this->userManager->get($share->getShareOwner());
-		if ($owner instanceof IUser) {
-			$ownerAccount = $this->accountManager->getAccount($owner);
-
-			$ownerName = $ownerAccount->getProperty(IAccountManager::PROPERTY_DISPLAYNAME);
-			if ($ownerName->getScope() === IAccountManager::SCOPE_PUBLISHED) {
-				$shareTmpl['owner'] = $owner->getUID();
-				$shareTmpl['shareOwner'] = $owner->getDisplayName();
-			}
-		}
-
-		$shareTmpl['filename'] = $shareNode->getName();
-		$shareTmpl['directory_path'] = $share->getTarget();
-		$shareTmpl['note'] = $share->getNote();
-		$shareTmpl['mimetype'] = $shareNode->getMimetype();
-		$shareTmpl['previewSupported'] = $this->previewManager->isMimeSupported($shareNode->getMimetype());
-		$shareTmpl['dirToken'] = $this->getToken();
-		$shareTmpl['sharingToken'] = $this->getToken();
-		$shareTmpl['server2serversharing'] = $this->federatedShareProvider->isOutgoingServer2serverShareEnabled();
-		$shareTmpl['protected'] = $share->getPassword() !== null ? 'true' : 'false';
-		$shareTmpl['dir'] = '';
-		$shareTmpl['nonHumanFileSize'] = $shareNode->getSize();
-		$shareTmpl['fileSize'] = \OCP\Util::humanFileSize($shareNode->getSize());
-		$shareTmpl['hideDownload'] = $share->getHideDownload();
-
-		$hideFileList = false;
-
-		if ($shareNode instanceof \OCP\Files\Folder) {
-			$shareIsFolder = true;
-
-			try {
-				$folderNode = $shareNode->get($path);
-			} catch (\OCP\Files\NotFoundException $e) {
-				$this->emitAccessShareHook($share, 404, 'Share not found');
-				$this->emitShareAccessEvent($share, self::SHARE_ACCESS, 404, 'Share not found');
-				throw new NotFoundException();
-			}
-
-			$shareTmpl['dir'] = $shareNode->getRelativePath($folderNode->getPath());
-
-			/*
-			 * The OC_Util methods require a view. This just uses the node API
-			 */
-			$freeSpace = $share->getNode()->getStorage()->free_space($share->getNode()->getInternalPath());
-			if ($freeSpace < \OCP\Files\FileInfo::SPACE_UNLIMITED) {
-				$freeSpace = (int)max($freeSpace, 0);
-			} else {
-				$freeSpace = (INF > 0) ? INF: PHP_INT_MAX; // work around https://bugs.php.net/bug.php?id=69188
-			}
-
-			$hideFileList = !($share->getPermissions() & \OCP\Constants::PERMISSION_READ);
-			$maxUploadFilesize = $freeSpace;
-
-			$folder = new Template('files', 'list', '');
-
-			$folder->assign('dir', $shareNode->getRelativePath($folderNode->getPath()));
-			$folder->assign('dirToken', $this->getToken());
-			$folder->assign('permissions', \OCP\Constants::PERMISSION_READ);
-			$folder->assign('isPublic', true);
-			$folder->assign('hideFileList', $hideFileList);
-			$folder->assign('publicUploadEnabled', 'no');
-			// default to list view
-			$folder->assign('showgridview', false);
-			$folder->assign('uploadMaxFilesize', $maxUploadFilesize);
-			$folder->assign('uploadMaxHumanFilesize', \OCP\Util::humanFileSize($maxUploadFilesize));
-			$folder->assign('freeSpace', $freeSpace);
-			$folder->assign('usedSpacePercent', 0);
-			$folder->assign('trash', false);
-			$shareTmpl['folder'] = $folder->fetchPage();
-		} else {
-			$shareIsFolder = false;
-		}
-
-		// default to list view
-		$shareTmpl['showgridview'] = false;
-
-		$shareTmpl['hideFileList'] = $hideFileList;
-		$shareTmpl['downloadURL'] = $this->urlGenerator->linkToRouteAbsolute('files_sharing.sharecontroller.downloadShare', [
-			'token' => $this->getToken(),
-			'filename' => $shareIsFolder ? null : $shareNode->getName()
-		]);
-		$shareTmpl['shareUrl'] = $this->urlGenerator->linkToRouteAbsolute('files_sharing.sharecontroller.showShare', ['token' => $this->getToken()]);
-		$shareTmpl['maxSizeAnimateGif'] = $this->config->getSystemValue('max_filesize_animated_gifs_public_sharing', 10);
-		$shareTmpl['previewEnabled'] = $this->config->getSystemValue('enable_previews', true);
-		$shareTmpl['previewMaxX'] = $this->config->getSystemValue('preview_max_x', 1024);
-		$shareTmpl['previewMaxY'] = $this->config->getSystemValue('preview_max_y', 1024);
-		$shareTmpl['disclaimer'] = $this->config->getAppValue('core', 'shareapi_public_link_disclaimertext', null);
-		$shareTmpl['previewURL'] = $shareTmpl['downloadURL'];
-
-		if ($shareTmpl['previewSupported']) {
-			$shareTmpl['previewImage'] = $this->urlGenerator->linkToRouteAbsolute('files_sharing.PublicPreview.getPreview',
-				['x' => 200, 'y' => 200, 'file' => $shareTmpl['directory_path'], 'token' => $shareTmpl['dirToken']]);
-			$ogPreview = $shareTmpl['previewImage'];
-
-			// We just have direct previews for image files
-			if ($shareNode->getMimePart() === 'image') {
-				$shareTmpl['previewURL'] = $this->urlGenerator->linkToRouteAbsolute('files_sharing.publicpreview.directLink', ['token' => $this->getToken()]);
-
-				$ogPreview = $shareTmpl['previewURL'];
-
-				//Whatapp is kind of picky about their size requirements
-				if ($this->request->isUserAgent(['/^WhatsApp/'])) {
-					$ogPreview = $this->urlGenerator->linkToRouteAbsolute('files_sharing.PublicPreview.getPreview', [
-						'token' => $this->getToken(),
-						'x' => 256,
-						'y' => 256,
-						'a' => true,
-					]);
-				}
-			}
-		} else {
-			$shareTmpl['previewImage'] = $this->urlGenerator->getAbsoluteURL($this->urlGenerator->imagePath('core', 'favicon-fb.png'));
-			$ogPreview = $shareTmpl['previewImage'];
-		}
-
-		// Load files we need
-		\OCP\Util::addScript('files', 'semaphore');
-		\OCP\Util::addScript('files', 'file-upload');
-		\OCP\Util::addStyle('files_sharing', 'publicView');
-		\OCP\Util::addScript('files_sharing', 'public');
-		\OCP\Util::addScript('files_sharing', 'templates');
-		\OCP\Util::addScript('files', 'fileactions');
-		\OCP\Util::addScript('files', 'fileactionsmenu');
-		\OCP\Util::addScript('files', 'jquery.fileupload');
-		\OCP\Util::addScript('files_sharing', 'files_drop');
-
-		if (isset($shareTmpl['folder'])) {
-			// JS required for folders
-			\OCP\Util::addStyle('files', 'merged');
-			\OCP\Util::addScript('files', 'filesummary');
-			\OCP\Util::addScript('files', 'templates');
-			\OCP\Util::addScript('files', 'breadcrumb');
-			\OCP\Util::addScript('files', 'fileinfomodel');
-			\OCP\Util::addScript('files', 'newfilemenu');
-			\OCP\Util::addScript('files', 'files');
-			\OCP\Util::addScript('files', 'filemultiselectmenu');
-			\OCP\Util::addScript('files', 'filelist');
-			\OCP\Util::addScript('files', 'keyboardshortcuts');
-			\OCP\Util::addScript('files', 'operationprogressbar');
-		}
-
-		// Load Viewer scripts
-		if (class_exists(LoadViewer::class)) {
-			$this->eventDispatcher->dispatchTyped(new LoadViewer());
-		}
-		// OpenGraph Support: http://ogp.me/
-		\OCP\Util::addHeader('meta', ['property' => "og:title", 'content' => $shareTmpl['filename']]);
-		\OCP\Util::addHeader('meta', ['property' => "og:description", 'content' => $this->defaults->getName() . ($this->defaults->getSlogan() !== '' ? ' - ' . $this->defaults->getSlogan() : '')]);
-		\OCP\Util::addHeader('meta', ['property' => "og:site_name", 'content' => $this->defaults->getName()]);
-		\OCP\Util::addHeader('meta', ['property' => "og:url", 'content' => $shareTmpl['shareUrl']]);
-		\OCP\Util::addHeader('meta', ['property' => "og:type", 'content' => "object"]);
-		\OCP\Util::addHeader('meta', ['property' => "og:image", 'content' => $ogPreview]);
-
-		$this->eventDispatcher->dispatchTyped(new BeforeTemplateRenderedEvent($share));
-
-		$csp = new \OCP\AppFramework\Http\ContentSecurityPolicy();
-		$csp->addAllowedFrameDomain('\'self\'');
-
-		$response = new PublicTemplateResponse($this->appName, 'public', $shareTmpl);
-		$response->setHeaderTitle($shareTmpl['filename']);
-		if ($shareTmpl['shareOwner'] !== '') {
-			$response->setHeaderDetails($this->l10n->t('shared by %s', [$shareTmpl['shareOwner']]));
-		}
-
-		$isNoneFileDropFolder = $shareIsFolder === false || $share->getPermissions() !== \OCP\Constants::PERMISSION_CREATE;
-
-		if ($isNoneFileDropFolder && !$share->getHideDownload()) {
-			\OCP\Util::addScript('files_sharing', 'public_note');
-
-			$downloadWhite = new SimpleMenuAction('download', $this->l10n->t('Download'), 'icon-download-white', $shareTmpl['downloadURL'], 0);
-			$downloadAllWhite = new SimpleMenuAction('download', $this->l10n->t('Download all files'), 'icon-download-white', $shareTmpl['downloadURL'], 0);
-			$download = new SimpleMenuAction('download', $this->l10n->t('Download'), 'icon-download', $shareTmpl['downloadURL'], 10, $shareTmpl['fileSize']);
-			$downloadAll = new SimpleMenuAction('download', $this->l10n->t('Download all files'), 'icon-download', $shareTmpl['downloadURL'], 10, $shareTmpl['fileSize']);
-			$directLink = new LinkMenuAction($this->l10n->t('Direct link'), 'icon-public', $shareTmpl['previewURL']);
-			// TRANSLATORS The placeholder refers to the software product name as in 'Add to your Nextcloud'
-			$externalShare = new ExternalShareMenuAction($this->l10n->t('Add to your %s', [$this->defaults->getProductName()]), 'icon-external', $shareTmpl['owner'], $shareTmpl['shareOwner'], $shareTmpl['filename']);
-
-			$responseComposer = [];
-
-			if ($shareIsFolder) {
-				$responseComposer[] = $downloadAllWhite;
-				$responseComposer[] = $downloadAll;
-			} else {
-				$responseComposer[] = $downloadWhite;
-				$responseComposer[] = $download;
-			}
-			$responseComposer[] = $directLink;
-			if ($this->federatedShareProvider->isOutgoingServer2serverShareEnabled()) {
-				$responseComposer[] = $externalShare;
-			}
-
-			$response->setHeaderActions($responseComposer);
-		}
-
-		$response->setContentSecurityPolicy($csp);
 
 		$this->emitAccessShareHook($share);
 		$this->emitShareAccessEvent($share, self::SHARE_ACCESS);