nextcloud/lib/private/Files/Template/TemplateManager.php

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<?php
/**
* @copyright Copyright (c) 2021 Julius Härtl <jus@bitgrid.net>
*
* @author Julius Härtl <jus@bitgrid.net>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
declare(strict_types=1);
namespace OC\Files\Template;
use OC\AppFramework\Bootstrap\Coordinator;
use OC\Files\Cache\Scanner;
use OC\Files\Filesystem;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Files\Folder;
use OCP\Files\File;
use OCP\Files\GenericFileException;
use OCP\Files\IRootFolder;
use OCP\Files\Node;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use OCP\Files\Template\FileCreatedFromTemplateEvent;
use OCP\Files\Template\ICustomTemplateProvider;
use OCP\Files\Template\ITemplateManager;
use OCP\Files\Template\Template;
use OCP\Files\Template\TemplateFileCreator;
use OCP\IConfig;
use OCP\IPreview;
use OCP\IServerContainer;
use OCP\IUserSession;
use OCP\L10N\IFactory;
use Psr\Log\LoggerInterface;
class TemplateManager implements ITemplateManager {
private $registeredTypes = [];
private $types = [];
/** @var array|null */
private $providers = null;
private $serverContainer;
private $eventDispatcher;
private $rootFolder;
private $previewManager;
private $config;
private $l10n;
private $logger;
private $userId;
private $l10nFactory;
/** @var Coordinator */
private $bootstrapCoordinator;
public function __construct(
IServerContainer $serverContainer,
IEventDispatcher $eventDispatcher,
Coordinator $coordinator,
IRootFolder $rootFolder,
IUserSession $userSession,
IPreview $previewManager,
IConfig $config,
IFactory $l10nFactory,
LoggerInterface $logger
) {
$this->serverContainer = $serverContainer;
$this->eventDispatcher = $eventDispatcher;
$this->bootstrapCoordinator = $coordinator;
$this->rootFolder = $rootFolder;
$this->previewManager = $previewManager;
$this->config = $config;
$this->l10nFactory = $l10nFactory;
$this->l10n = $l10nFactory->get('lib');
$this->logger = $logger;
$user = $userSession->getUser();
$this->userId = $user ? $user->getUID() : null;
}
public function registerTemplateFileCreator(callable $callback): void {
$this->registeredTypes[] = $callback;
}
public function getRegisteredProviders(): array {
if ($this->providers !== null) {
return $this->providers;
}
$context = $this->bootstrapCoordinator->getRegistrationContext();
$this->providers = [];
foreach ($context->getTemplateProviders() as $provider) {
$this->providers[$provider['class']] = $this->serverContainer->get($provider['class']);
}
return $this->providers;
}
public function getTypes(): array {
foreach ($this->registeredTypes as $registeredType) {
$this->types[] = $registeredType();
}
return $this->types;
}
public function listCreators(): array {
$types = $this->getTypes();
usort($types, function (TemplateFileCreator $a, TemplateFileCreator $b) {
return $a->getOrder() - $b->getOrder();
});
return $types;
}
public function listTemplates(): array {
return array_map(function (TemplateFileCreator $entry) {
return array_merge($entry->jsonSerialize(), [
'templates' => $this->getTemplateFiles($entry)
]);
}, $this->listCreators());
}
/**
* @param string $filePath
* @param string $templateId
* @return array
* @throws GenericFileException
*/
public function createFromTemplate(string $filePath, string $templateId = '', string $templateType = 'user'): array {
$userFolder = $this->rootFolder->getUserFolder($this->userId);
try {
$userFolder->get($filePath);
throw new GenericFileException($this->l10n->t('File already exists'));
} catch (NotFoundException $e) {
}
try {
$targetFile = $userFolder->newFile($filePath);
if ($templateType === 'user' && $templateId !== '') {
$template = $userFolder->get($templateId);
$template->copy($targetFile->getPath());
} else {
$matchingProvider = array_filter($this->getRegisteredProviders(), function (ICustomTemplateProvider $provider) use ($templateType) {
return $templateType === get_class($provider);
});
$provider = array_shift($matchingProvider);
if ($provider) {
$template = $provider->getCustomTemplate($templateId);
$template->copy($targetFile->getPath());
}
}
$this->eventDispatcher->dispatchTyped(new FileCreatedFromTemplateEvent($template, $targetFile));
return $this->formatFile($userFolder->get($filePath));
} catch (\Exception $e) {
$this->logger->error($e->getMessage(), ['exception' => $e]);
throw new GenericFileException($this->l10n->t('Failed to create file from template'));
}
}
/**
* @return Folder
* @throws \OCP\Files\NotFoundException
* @throws \OCP\Files\NotPermittedException
* @throws \OC\User\NoUserException
*/
private function getTemplateFolder(): Node {
if ($this->getTemplatePath() !== '') {
return $this->rootFolder->getUserFolder($this->userId)->get($this->getTemplatePath());
}
throw new NotFoundException();
}
private function getTemplateFiles(TemplateFileCreator $type): array {
$templates = [];
foreach ($this->getRegisteredProviders() as $provider) {
foreach ($type->getMimetypes() as $mimetype) {
foreach ($provider->getCustomTemplates($mimetype) as $template) {
$templates[] = $template;
}
}
}
try {
$userTemplateFolder = $this->getTemplateFolder();
} catch (\Exception $e) {
return $templates;
}
foreach ($type->getMimetypes() as $mimetype) {
foreach ($userTemplateFolder->searchByMime($mimetype) as $templateFile) {
$template = new Template(
'user',
$this->rootFolder->getUserFolder($this->userId)->getRelativePath($templateFile->getPath()),
$templateFile
);
$template->setHasPreview($this->previewManager->isAvailable($templateFile));
$templates[] = $template;
}
}
return $templates;
}
/**
* @param Node|File $file
* @return array
* @throws NotFoundException
* @throws \OCP\Files\InvalidPathException
*/
private function formatFile(Node $file): array {
return [
'basename' => $file->getName(),
'etag' => $file->getEtag(),
'fileid' => $file->getId(),
'filename' => $this->rootFolder->getUserFolder($this->userId)->getRelativePath($file->getPath()),
'lastmod' => $file->getMTime(),
'mime' => $file->getMimetype(),
'size' => $file->getSize(),
'type' => $file->getType(),
'hasPreview' => $this->previewManager->isAvailable($file)
];
}
public function hasTemplateDirectory(): bool {
try {
$this->getTemplateFolder();
return true;
} catch (\Exception $e) {
}
return false;
}
public function setTemplatePath(string $path): void {
$this->config->setUserValue($this->userId, 'core', 'templateDirectory', $path);
}
public function getTemplatePath(): string {
return $this->config->getUserValue($this->userId, 'core', 'templateDirectory', '');
}
public function initializeTemplateDirectory(string $path = null, string $userId = null, $copyTemplates = true): string {
if ($userId !== null) {
$this->userId = $userId;
}
$defaultSkeletonDirectory = \OC::$SERVERROOT . '/core/skeleton';
$defaultTemplateDirectory = \OC::$SERVERROOT . '/core/skeleton/Templates';
$skeletonPath = $this->config->getSystemValue('skeletondirectory', $defaultSkeletonDirectory);
$skeletonTemplatePath = $this->config->getSystemValue('templatedirectory', $defaultTemplateDirectory);
$isDefaultSkeleton = $skeletonPath === $defaultSkeletonDirectory;
$isDefaultTemplates = $skeletonTemplatePath === $defaultTemplateDirectory;
$userLang = $this->l10nFactory->getUserLanguage();
try {
$l10n = $this->l10nFactory->get('lib', $userLang);
$userFolder = $this->rootFolder->getUserFolder($this->userId);
$userTemplatePath = $path ?? $l10n->t('Templates') . '/';
// Initial user setup without a provided path
if ($path === null) {
// All locations are default so we just need to rename the directory to the users language
if ($isDefaultSkeleton && $isDefaultTemplates) {
if (!$userFolder->nodeExists('Templates')) {
return '';
}
$newPath = Filesystem::normalizePath($userFolder->getPath() . '/' . $userTemplatePath);
if ($newPath !== $userFolder->get('Templates')->getPath()) {
$userFolder->get('Templates')->move($newPath);
}
$this->setTemplatePath($userTemplatePath);
return $userTemplatePath;
}
if ($isDefaultSkeleton && !empty($skeletonTemplatePath) && !$isDefaultTemplates && $userFolder->nodeExists('Templates')) {
$shippedSkeletonTemplates = $userFolder->get('Templates');
$shippedSkeletonTemplates->delete();
}
}
try {
$folder = $userFolder->newFolder($userTemplatePath);
} catch (NotPermittedException $e) {
$folder = $userFolder->get($userTemplatePath);
}
$folderIsEmpty = count($folder->getDirectoryListing()) === 0;
if (!$copyTemplates) {
$this->setTemplatePath($userTemplatePath);
return $userTemplatePath;
}
if (!$isDefaultTemplates && $folderIsEmpty) {
$localizedSkeletonTemplatePath = $this->getLocalizedTemplatePath($skeletonTemplatePath, $userLang);
if (!empty($localizedSkeletonTemplatePath) && file_exists($localizedSkeletonTemplatePath)) {
\OC_Util::copyr($localizedSkeletonTemplatePath, $folder);
$userFolder->getStorage()->getScanner()->scan($userTemplatePath, Scanner::SCAN_RECURSIVE);
$this->setTemplatePath($userTemplatePath);
return $userTemplatePath;
}
}
if ($path !== null && $isDefaultSkeleton && $isDefaultTemplates && $folderIsEmpty) {
$localizedSkeletonPath = $this->getLocalizedTemplatePath($skeletonPath . '/Templates', $userLang);
if (!empty($localizedSkeletonPath) && file_exists($localizedSkeletonPath)) {
\OC_Util::copyr($localizedSkeletonPath, $folder);
$userFolder->getStorage()->getScanner()->scan($userTemplatePath, Scanner::SCAN_RECURSIVE);
$this->setTemplatePath($userTemplatePath);
return $userTemplatePath;
}
}
$this->setTemplatePath($path ?? '');
return $this->getTemplatePath();
} catch (\Throwable $e) {
$this->logger->error('Failed to initialize templates directory to user language ' . $userLang . ' for ' . $userId, ['app' => 'files_templates', 'exception' => $e]);
}
$this->setTemplatePath('');
return $this->getTemplatePath();
}
private function getLocalizedTemplatePath(string $skeletonTemplatePath, string $userLang) {
$localizedSkeletonTemplatePath = str_replace('{lang}', $userLang, $skeletonTemplatePath);
if (!file_exists($localizedSkeletonTemplatePath)) {
$dialectStart = strpos($userLang, '_');
if ($dialectStart !== false) {
$localizedSkeletonTemplatePath = str_replace('{lang}', substr($userLang, 0, $dialectStart), $skeletonTemplatePath);
}
if ($dialectStart === false || !file_exists($localizedSkeletonTemplatePath)) {
$localizedSkeletonTemplatePath = str_replace('{lang}', 'default', $skeletonTemplatePath);
}
}
return $localizedSkeletonTemplatePath;
}
}