396 lines
11 KiB
PHP
396 lines
11 KiB
PHP
<?php
|
|
|
|
namespace BookStack\Entities\Tools;
|
|
|
|
use BookStack\Entities\EntityProvider;
|
|
use BookStack\Entities\Models\Book;
|
|
use BookStack\Entities\Models\Bookshelf;
|
|
use BookStack\Entities\Models\Chapter;
|
|
use BookStack\Entities\Models\Deletion;
|
|
use BookStack\Entities\Models\Entity;
|
|
use BookStack\Entities\Models\HasCoverImage;
|
|
use BookStack\Entities\Models\Page;
|
|
use BookStack\Exceptions\NotifyException;
|
|
use BookStack\Facades\Activity;
|
|
use BookStack\Uploads\AttachmentService;
|
|
use BookStack\Uploads\ImageService;
|
|
use Exception;
|
|
use Illuminate\Database\Eloquent\Builder;
|
|
use Illuminate\Support\Carbon;
|
|
|
|
class TrashCan
|
|
{
|
|
/**
|
|
* Send a shelf to the recycle bin.
|
|
*
|
|
* @throws NotifyException
|
|
*/
|
|
public function softDestroyShelf(Bookshelf $shelf)
|
|
{
|
|
$this->ensureDeletable($shelf);
|
|
Deletion::createForEntity($shelf);
|
|
$shelf->delete();
|
|
}
|
|
|
|
/**
|
|
* Send a book to the recycle bin.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
public function softDestroyBook(Book $book)
|
|
{
|
|
$this->ensureDeletable($book);
|
|
Deletion::createForEntity($book);
|
|
|
|
foreach ($book->pages as $page) {
|
|
$this->softDestroyPage($page, false);
|
|
}
|
|
|
|
foreach ($book->chapters as $chapter) {
|
|
$this->softDestroyChapter($chapter, false);
|
|
}
|
|
|
|
$book->delete();
|
|
}
|
|
|
|
/**
|
|
* Send a chapter to the recycle bin.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
public function softDestroyChapter(Chapter $chapter, bool $recordDelete = true)
|
|
{
|
|
if ($recordDelete) {
|
|
$this->ensureDeletable($chapter);
|
|
Deletion::createForEntity($chapter);
|
|
}
|
|
|
|
if (count($chapter->pages) > 0) {
|
|
foreach ($chapter->pages as $page) {
|
|
$this->softDestroyPage($page, false);
|
|
}
|
|
}
|
|
|
|
$chapter->delete();
|
|
}
|
|
|
|
/**
|
|
* Send a page to the recycle bin.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
public function softDestroyPage(Page $page, bool $recordDelete = true)
|
|
{
|
|
if ($recordDelete) {
|
|
$this->ensureDeletable($page);
|
|
Deletion::createForEntity($page);
|
|
}
|
|
|
|
$page->delete();
|
|
}
|
|
|
|
/**
|
|
* Ensure the given entity is deletable.
|
|
* Is not for permissions, but logical conditions within the application.
|
|
* Will throw if not deletable.
|
|
*
|
|
* @throws NotifyException
|
|
*/
|
|
protected function ensureDeletable(Entity $entity): void
|
|
{
|
|
$customHomeId = intval(explode(':', setting('app-homepage', '0:'))[0]);
|
|
$customHomeActive = setting('app-homepage-type') === 'page';
|
|
$removeCustomHome = false;
|
|
|
|
// Check custom homepage usage for pages
|
|
if ($entity instanceof Page && $entity->id === $customHomeId) {
|
|
if ($customHomeActive) {
|
|
throw new NotifyException(trans('errors.page_custom_home_deletion'), $entity->getUrl());
|
|
}
|
|
$removeCustomHome = true;
|
|
}
|
|
|
|
// Check custom homepage usage within chapters or books
|
|
if ($entity instanceof Chapter || $entity instanceof Book) {
|
|
if ($entity->pages()->where('id', '=', $customHomeId)->exists()) {
|
|
if ($customHomeActive) {
|
|
throw new NotifyException(trans('errors.page_custom_home_deletion'), $entity->getUrl());
|
|
}
|
|
$removeCustomHome = true;
|
|
}
|
|
}
|
|
|
|
if ($removeCustomHome) {
|
|
setting()->remove('app-homepage');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Remove a bookshelf from the system.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
protected function destroyShelf(Bookshelf $shelf): int
|
|
{
|
|
$this->destroyCommonRelations($shelf);
|
|
$shelf->forceDelete();
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Remove a book from the system.
|
|
* Destroys any child chapters and pages.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
protected function destroyBook(Book $book): int
|
|
{
|
|
$count = 0;
|
|
$pages = $book->pages()->withTrashed()->get();
|
|
foreach ($pages as $page) {
|
|
$this->destroyPage($page);
|
|
$count++;
|
|
}
|
|
|
|
$chapters = $book->chapters()->withTrashed()->get();
|
|
foreach ($chapters as $chapter) {
|
|
$this->destroyChapter($chapter);
|
|
$count++;
|
|
}
|
|
|
|
$this->destroyCommonRelations($book);
|
|
$book->forceDelete();
|
|
|
|
return $count + 1;
|
|
}
|
|
|
|
/**
|
|
* Remove a chapter from the system.
|
|
* Destroys all pages within.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
protected function destroyChapter(Chapter $chapter): int
|
|
{
|
|
$count = 0;
|
|
$pages = $chapter->pages()->withTrashed()->get();
|
|
foreach ($pages as $page) {
|
|
$this->destroyPage($page);
|
|
$count++;
|
|
}
|
|
|
|
$this->destroyCommonRelations($chapter);
|
|
$chapter->forceDelete();
|
|
|
|
return $count + 1;
|
|
}
|
|
|
|
/**
|
|
* Remove a page from the system.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
protected function destroyPage(Page $page): int
|
|
{
|
|
$this->destroyCommonRelations($page);
|
|
$page->allRevisions()->delete();
|
|
|
|
// Delete Attached Files
|
|
$attachmentService = app()->make(AttachmentService::class);
|
|
foreach ($page->attachments as $attachment) {
|
|
$attachmentService->deleteFile($attachment);
|
|
}
|
|
|
|
// Remove book template usages
|
|
Book::query()->where('default_template_id', '=', $page->id)
|
|
->update(['default_template_id' => null]);
|
|
|
|
// Remove chapter template usages
|
|
Chapter::query()->where('default_template_id', '=', $page->id)
|
|
->update(['default_template_id' => null]);
|
|
|
|
$page->forceDelete();
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Get the total counts of those that have been trashed
|
|
* but not yet fully deleted (In recycle bin).
|
|
*/
|
|
public function getTrashedCounts(): array
|
|
{
|
|
$counts = [];
|
|
|
|
foreach ((new EntityProvider())->all() as $key => $instance) {
|
|
/** @var Builder<Entity> $query */
|
|
$query = $instance->newQuery();
|
|
$counts[$key] = $query->onlyTrashed()->count();
|
|
}
|
|
|
|
return $counts;
|
|
}
|
|
|
|
/**
|
|
* Destroy all items that have pending deletions.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
public function empty(): int
|
|
{
|
|
$deletions = Deletion::all();
|
|
$deleteCount = 0;
|
|
foreach ($deletions as $deletion) {
|
|
$deleteCount += $this->destroyFromDeletion($deletion);
|
|
}
|
|
|
|
return $deleteCount;
|
|
}
|
|
|
|
/**
|
|
* Destroy an element from the given deletion model.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
public function destroyFromDeletion(Deletion $deletion): int
|
|
{
|
|
// We directly load the deletable element here just to ensure it still
|
|
// exists in the event it has already been destroyed during this request.
|
|
$entity = $deletion->deletable()->first();
|
|
$count = 0;
|
|
if ($entity) {
|
|
$count = $this->destroyEntity($deletion->deletable);
|
|
}
|
|
$deletion->delete();
|
|
|
|
return $count;
|
|
}
|
|
|
|
/**
|
|
* Restore the content within the given deletion.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
public function restoreFromDeletion(Deletion $deletion): int
|
|
{
|
|
$shouldRestore = true;
|
|
$restoreCount = 0;
|
|
|
|
if ($deletion->deletable instanceof Entity) {
|
|
$parent = $deletion->deletable->getParent();
|
|
if ($parent && $parent->trashed()) {
|
|
$shouldRestore = false;
|
|
}
|
|
}
|
|
|
|
if ($deletion->deletable instanceof Entity && $shouldRestore) {
|
|
$restoreCount = $this->restoreEntity($deletion->deletable);
|
|
}
|
|
|
|
$deletion->delete();
|
|
|
|
return $restoreCount;
|
|
}
|
|
|
|
/**
|
|
* Automatically clear old content from the recycle bin
|
|
* depending on the configured lifetime.
|
|
* Returns the total number of deleted elements.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
public function autoClearOld(): int
|
|
{
|
|
$lifetime = intval(config('app.recycle_bin_lifetime'));
|
|
if ($lifetime < 0) {
|
|
return 0;
|
|
}
|
|
|
|
$clearBeforeDate = Carbon::now()->addSeconds(10)->subDays($lifetime);
|
|
$deleteCount = 0;
|
|
|
|
$deletionsToRemove = Deletion::query()->where('created_at', '<', $clearBeforeDate)->get();
|
|
foreach ($deletionsToRemove as $deletion) {
|
|
$deleteCount += $this->destroyFromDeletion($deletion);
|
|
}
|
|
|
|
return $deleteCount;
|
|
}
|
|
|
|
/**
|
|
* Restore an entity so it is essentially un-deleted.
|
|
* Deletions on restored child elements will be removed during this restoration.
|
|
*/
|
|
protected function restoreEntity(Entity $entity): int
|
|
{
|
|
$count = 1;
|
|
$entity->restore();
|
|
|
|
$restoreAction = function ($entity) use (&$count) {
|
|
if ($entity->deletions_count > 0) {
|
|
$entity->deletions()->delete();
|
|
}
|
|
|
|
$entity->restore();
|
|
$count++;
|
|
};
|
|
|
|
if ($entity instanceof Chapter || $entity instanceof Book) {
|
|
$entity->pages()->withTrashed()->withCount('deletions')->get()->each($restoreAction);
|
|
}
|
|
|
|
if ($entity instanceof Book) {
|
|
$entity->chapters()->withTrashed()->withCount('deletions')->get()->each($restoreAction);
|
|
}
|
|
|
|
return $count;
|
|
}
|
|
|
|
/**
|
|
* Destroy the given entity.
|
|
*
|
|
* @throws Exception
|
|
*/
|
|
public function destroyEntity(Entity $entity): int
|
|
{
|
|
if ($entity instanceof Page) {
|
|
return $this->destroyPage($entity);
|
|
}
|
|
if ($entity instanceof Chapter) {
|
|
return $this->destroyChapter($entity);
|
|
}
|
|
if ($entity instanceof Book) {
|
|
return $this->destroyBook($entity);
|
|
}
|
|
if ($entity instanceof Bookshelf) {
|
|
return $this->destroyShelf($entity);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Update entity relations to remove or update outstanding connections.
|
|
*/
|
|
protected function destroyCommonRelations(Entity $entity)
|
|
{
|
|
Activity::removeEntity($entity);
|
|
$entity->views()->delete();
|
|
$entity->permissions()->delete();
|
|
$entity->tags()->delete();
|
|
$entity->comments()->delete();
|
|
$entity->jointPermissions()->delete();
|
|
$entity->searchTerms()->delete();
|
|
$entity->deletions()->delete();
|
|
$entity->favourites()->delete();
|
|
$entity->watches()->delete();
|
|
$entity->referencesTo()->delete();
|
|
$entity->referencesFrom()->delete();
|
|
|
|
if ($entity instanceof HasCoverImage && $entity->cover()->exists()) {
|
|
$imageService = app()->make(ImageService::class);
|
|
$imageService->destroy($entity->cover()->first());
|
|
}
|
|
}
|
|
}
|