BookStack/app/Entities/Repos/EntityRepo.php

887 lines
28 KiB
PHP

<?php namespace BookStack\Entities\Repos;
use BookStack\Actions\TagRepo;
use BookStack\Actions\ViewService;
use BookStack\Auth\Permissions\PermissionService;
use BookStack\Auth\User;
use BookStack\Entities\Book;
use BookStack\Entities\Bookshelf;
use BookStack\Entities\Chapter;
use BookStack\Entities\Entity;
use BookStack\Entities\EntityProvider;
use BookStack\Entities\Page;
use BookStack\Entities\SearchService;
use BookStack\Exceptions\NotFoundException;
use BookStack\Exceptions\NotifyException;
use BookStack\Uploads\AttachmentService;
use DOMDocument;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Http\Request;
use Illuminate\Support\Collection;
class EntityRepo
{
/**
* @var EntityProvider
*/
protected $entityProvider;
/**
* @var PermissionService
*/
protected $permissionService;
/**
* @var ViewService
*/
protected $viewService;
/**
* @var TagRepo
*/
protected $tagRepo;
/**
* @var SearchService
*/
protected $searchService;
/**
* EntityRepo constructor.
* @param EntityProvider $entityProvider
* @param ViewService $viewService
* @param PermissionService $permissionService
* @param TagRepo $tagRepo
* @param SearchService $searchService
*/
public function __construct(
EntityProvider $entityProvider,
ViewService $viewService,
PermissionService $permissionService,
TagRepo $tagRepo,
SearchService $searchService
) {
$this->entityProvider = $entityProvider;
$this->viewService = $viewService;
$this->permissionService = $permissionService;
$this->tagRepo = $tagRepo;
$this->searchService = $searchService;
}
/**
* Base query for searching entities via permission system
* @param string $type
* @param bool $allowDrafts
* @param string $permission
* @return \Illuminate\Database\Query\Builder
*/
protected function entityQuery($type, $allowDrafts = false, $permission = 'view')
{
$q = $this->permissionService->enforceEntityRestrictions($type, $this->entityProvider->get($type), $permission);
if (strtolower($type) === 'page' && !$allowDrafts) {
$q = $q->where('draft', '=', false);
}
return $q;
}
/**
* Check if an entity with the given id exists.
* @param $type
* @param $id
* @return bool
*/
public function exists($type, $id)
{
return $this->entityQuery($type)->where('id', '=', $id)->exists();
}
/**
* Get an entity by ID
* @param string $type
* @param integer $id
* @param bool $allowDrafts
* @param bool $ignorePermissions
* @return \BookStack\Entities\Entity
*/
public function getById($type, $id, $allowDrafts = false, $ignorePermissions = false)
{
$query = $this->entityQuery($type, $allowDrafts);
if ($ignorePermissions) {
$query = $this->entityProvider->get($type)->newQuery();
}
return $query->find($id);
}
/**
* @param string $type
* @param []int $ids
* @param bool $allowDrafts
* @param bool $ignorePermissions
* @return \Illuminate\Database\Eloquent\Builder[]|\Illuminate\Database\Eloquent\Collection|Collection
*/
public function getManyById($type, $ids, $allowDrafts = false, $ignorePermissions = false)
{
$query = $this->entityQuery($type, $allowDrafts);
if ($ignorePermissions) {
$query = $this->entityProvider->get($type)->newQuery();
}
return $query->whereIn('id', $ids)->get();
}
/**
* Get an entity by its url slug.
* @param string $type
* @param string $slug
* @param string|bool $bookSlug
* @return \BookStack\Entities\Entity
* @throws NotFoundException
*/
public function getBySlug($type, $slug, $bookSlug = false)
{
$q = $this->entityQuery($type)->where('slug', '=', $slug);
if (strtolower($type) === 'chapter' || strtolower($type) === 'page') {
$q = $q->where('book_id', '=', function ($query) use ($bookSlug) {
$query->select('id')
->from($this->entityProvider->book->getTable())
->where('slug', '=', $bookSlug)->limit(1);
});
}
$entity = $q->first();
if ($entity === null) {
throw new NotFoundException(trans('errors.' . strtolower($type) . '_not_found'));
}
return $entity;
}
/**
* Get all entities of a type with the given permission, limited by count unless count is false.
* @param string $type
* @param integer|bool $count
* @param string $permission
* @return Collection
*/
public function getAll($type, $count = 20, $permission = 'view')
{
$q = $this->entityQuery($type, false, $permission)->orderBy('name', 'asc');
if ($count !== false) {
$q = $q->take($count);
}
return $q->get();
}
/**
* Get all entities in a paginated format
* @param $type
* @param int $count
* @param string $sort
* @param string $order
* @param null|callable $queryAddition
* @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
*/
public function getAllPaginated($type, int $count = 10, string $sort = 'name', string $order = 'asc', $queryAddition = null)
{
$query = $this->entityQuery($type);
$query = $this->addSortToQuery($query, $sort, $order);
if ($queryAddition) {
$queryAddition($query);
}
return $query->paginate($count);
}
/**
* Add sorting operations to an entity query.
* @param Builder $query
* @param string $sort
* @param string $order
* @return Builder
*/
protected function addSortToQuery(Builder $query, string $sort = 'name', string $order = 'asc')
{
$order = ($order === 'asc') ? 'asc' : 'desc';
$propertySorts = ['name', 'created_at', 'updated_at'];
if (in_array($sort, $propertySorts)) {
return $query->orderBy($sort, $order);
}
return $query;
}
/**
* Get the most recently created entities of the given type.
* @param string $type
* @param int $count
* @param int $page
* @param bool|callable $additionalQuery
* @return Collection
*/
public function getRecentlyCreated($type, $count = 20, $page = 0, $additionalQuery = false)
{
$query = $this->permissionService->enforceEntityRestrictions($type, $this->entityProvider->get($type))
->orderBy('created_at', 'desc');
if (strtolower($type) === 'page') {
$query = $query->where('draft', '=', false);
}
if ($additionalQuery !== false && is_callable($additionalQuery)) {
$additionalQuery($query);
}
return $query->skip($page * $count)->take($count)->get();
}
/**
* Get the most recently updated entities of the given type.
* @param string $type
* @param int $count
* @param int $page
* @param bool|callable $additionalQuery
* @return Collection
*/
public function getRecentlyUpdated($type, $count = 20, $page = 0, $additionalQuery = false)
{
$query = $this->permissionService->enforceEntityRestrictions($type, $this->entityProvider->get($type))
->orderBy('updated_at', 'desc');
if (strtolower($type) === 'page') {
$query = $query->where('draft', '=', false);
}
if ($additionalQuery !== false && is_callable($additionalQuery)) {
$additionalQuery($query);
}
return $query->skip($page * $count)->take($count)->get();
}
/**
* Get the most recently viewed entities.
* @param string|bool $type
* @param int $count
* @param int $page
* @return mixed
*/
public function getRecentlyViewed($type, $count = 10, $page = 0)
{
$filter = is_bool($type) ? false : $this->entityProvider->get($type);
return $this->viewService->getUserRecentlyViewed($count, $page, $filter);
}
/**
* Get the latest pages added to the system with pagination.
* @param string $type
* @param int $count
* @return mixed
*/
public function getRecentlyCreatedPaginated($type, $count = 20)
{
return $this->entityQuery($type)->orderBy('created_at', 'desc')->paginate($count);
}
/**
* Get the latest pages added to the system with pagination.
* @param string $type
* @param int $count
* @return mixed
*/
public function getRecentlyUpdatedPaginated($type, $count = 20)
{
return $this->entityQuery($type)->orderBy('updated_at', 'desc')->paginate($count);
}
/**
* Get the most popular entities base on all views.
* @param string $type
* @param int $count
* @param int $page
* @return mixed
*/
public function getPopular(string $type, int $count = 10, int $page = 0)
{
return $this->viewService->getPopular($count, $page, $type);
}
/**
* Get draft pages owned by the current user.
* @param int $count
* @param int $page
* @return Collection
*/
public function getUserDraftPages($count = 20, $page = 0)
{
return $this->entityProvider->page->where('draft', '=', true)
->where('created_by', '=', user()->id)
->orderBy('updated_at', 'desc')
->skip($count * $page)->take($count)->get();
}
/**
* Get the number of entities the given user has created.
* @param string $type
* @param User $user
* @return int
*/
public function getUserTotalCreated(string $type, User $user)
{
return $this->entityProvider->get($type)
->where('created_by', '=', $user->id)->count();
}
/**
* Get the child items for a chapter sorted by priority but
* with draft items floated to the top.
* @param \BookStack\Entities\Bookshelf $bookshelf
* @return \Illuminate\Database\Eloquent\Collection|static[]
*/
public function getBookshelfChildren(Bookshelf $bookshelf)
{
return $this->permissionService->enforceEntityRestrictions('book', $bookshelf->books())->get();
}
/**
* Get the direct children of a book.
* @param Book $book
* @return \Illuminate\Database\Eloquent\Collection
*/
public function getBookDirectChildren(Book $book)
{
$pages = $this->permissionService->enforceEntityRestrictions('page', $book->directPages())->get();
$chapters = $this->permissionService->enforceEntityRestrictions('chapters', $book->chapters())->get();
return collect()->concat($pages)->concat($chapters)->sortBy('priority')->sortByDesc('draft');
}
/**
* Get all child objects of a book.
* Returns a sorted collection of Pages and Chapters.
* Loads the book slug onto child elements to prevent access database access for getting the slug.
* @param \BookStack\Entities\Book $book
* @param bool $filterDrafts
* @param bool $renderPages
* @return mixed
*/
public function getBookChildren(Book $book, $filterDrafts = false, $renderPages = false)
{
$q = $this->permissionService->bookChildrenQuery($book->id, $filterDrafts, $renderPages)->get();
$entities = [];
$parents = [];
$tree = [];
foreach ($q as $index => $rawEntity) {
if ($rawEntity->entity_type === $this->entityProvider->page->getMorphClass()) {
$entities[$index] = $this->entityProvider->page->newFromBuilder($rawEntity);
if ($renderPages) {
$entities[$index]->html = $rawEntity->html;
$entities[$index]->html = $this->renderPage($entities[$index]);
};
} else if ($rawEntity->entity_type === $this->entityProvider->chapter->getMorphClass()) {
$entities[$index] = $this->entityProvider->chapter->newFromBuilder($rawEntity);
$key = $entities[$index]->entity_type . ':' . $entities[$index]->id;
$parents[$key] = $entities[$index];
$parents[$key]->setAttribute('pages', collect());
}
if ($entities[$index]->chapter_id === 0 || $entities[$index]->chapter_id === '0') {
$tree[] = $entities[$index];
}
$entities[$index]->book = $book;
}
foreach ($entities as $entity) {
if ($entity->chapter_id === 0 || $entity->chapter_id === '0') {
continue;
}
$parentKey = $this->entityProvider->chapter->getMorphClass() . ':' . $entity->chapter_id;
if (!isset($parents[$parentKey])) {
$tree[] = $entity;
continue;
}
$chapter = $parents[$parentKey];
$chapter->pages->push($entity);
}
return collect($tree);
}
/**
* Get the child items for a chapter sorted by priority but
* with draft items floated to the top.
* @param \BookStack\Entities\Chapter $chapter
* @return \Illuminate\Database\Eloquent\Collection|static[]
*/
public function getChapterChildren(Chapter $chapter)
{
return $this->permissionService->enforceEntityRestrictions('page', $chapter->pages())
->orderBy('draft', 'DESC')->orderBy('priority', 'ASC')->get();
}
/**
* Get the next sequential priority for a new child element in the given book.
* @param \BookStack\Entities\Book $book
* @return int
*/
public function getNewBookPriority(Book $book)
{
$lastElem = $this->getBookChildren($book)->pop();
return $lastElem ? $lastElem->priority + 1 : 0;
}
/**
* Get a new priority for a new page to be added to the given chapter.
* @param \BookStack\Entities\Chapter $chapter
* @return int
*/
public function getNewChapterPriority(Chapter $chapter)
{
$lastPage = $chapter->pages('DESC')->first();
return $lastPage !== null ? $lastPage->priority + 1 : 0;
}
/**
* Find a suitable slug for an entity.
* @param string $type
* @param string $name
* @param bool|integer $currentId
* @param bool|integer $bookId Only pass if type is not a book
* @return string
*/
public function findSuitableSlug($type, $name, $currentId = false, $bookId = false)
{
$slug = $this->nameToSlug($name);
while ($this->slugExists($type, $slug, $currentId, $bookId)) {
$slug .= '-' . substr(md5(rand(1, 500)), 0, 3);
}
return $slug;
}
/**
* Check if a slug already exists in the database.
* @param string $type
* @param string $slug
* @param bool|integer $currentId
* @param bool|integer $bookId
* @return bool
*/
protected function slugExists($type, $slug, $currentId = false, $bookId = false)
{
$query = $this->entityProvider->get($type)->where('slug', '=', $slug);
if (strtolower($type) === 'page' || strtolower($type) === 'chapter') {
$query = $query->where('book_id', '=', $bookId);
}
if ($currentId) {
$query = $query->where('id', '!=', $currentId);
}
return $query->count() > 0;
}
/**
* Updates entity restrictions from a request
* @param Request $request
* @param \BookStack\Entities\Entity $entity
* @throws \Throwable
*/
public function updateEntityPermissionsFromRequest(Request $request, Entity $entity)
{
$entity->restricted = $request->get('restricted', '') === 'true';
$entity->permissions()->delete();
if ($request->filled('restrictions')) {
foreach ($request->get('restrictions') as $roleId => $restrictions) {
foreach ($restrictions as $action => $value) {
$entity->permissions()->create([
'role_id' => $roleId,
'action' => strtolower($action)
]);
}
}
}
$entity->save();
$this->permissionService->buildJointPermissionsForEntity($entity);
}
/**
* Create a new entity from request input.
* Used for books and chapters.
* @param string $type
* @param array $input
* @param bool|Book $book
* @return \BookStack\Entities\Entity
*/
public function createFromInput($type, $input = [], $book = false)
{
$isChapter = strtolower($type) === 'chapter';
$entityModel = $this->entityProvider->get($type)->newInstance($input);
$entityModel->slug = $this->findSuitableSlug($type, $entityModel->name, false, $isChapter ? $book->id : false);
$entityModel->created_by = user()->id;
$entityModel->updated_by = user()->id;
$isChapter ? $book->chapters()->save($entityModel) : $entityModel->save();
if (isset($input['tags'])) {
$this->tagRepo->saveTagsToEntity($entityModel, $input['tags']);
}
$this->permissionService->buildJointPermissionsForEntity($entityModel);
$this->searchService->indexEntity($entityModel);
return $entityModel;
}
/**
* Update entity details from request input.
* Used for books and chapters
* @param string $type
* @param \BookStack\Entities\Entity $entityModel
* @param array $input
* @return \BookStack\Entities\Entity
*/
public function updateFromInput($type, Entity $entityModel, $input = [])
{
if ($entityModel->name !== $input['name']) {
$entityModel->slug = $this->findSuitableSlug($type, $input['name'], $entityModel->id);
}
$entityModel->fill($input);
$entityModel->updated_by = user()->id;
$entityModel->save();
if (isset($input['tags'])) {
$this->tagRepo->saveTagsToEntity($entityModel, $input['tags']);
}
$this->permissionService->buildJointPermissionsForEntity($entityModel);
$this->searchService->indexEntity($entityModel);
return $entityModel;
}
/**
* Sync the books assigned to a shelf from a comma-separated list
* of book IDs.
* @param \BookStack\Entities\Bookshelf $shelf
* @param string $books
*/
public function updateShelfBooks(Bookshelf $shelf, string $books)
{
$ids = explode(',', $books);
// Check books exist and match ordering
$bookIds = $this->entityQuery('book')->whereIn('id', $ids)->get(['id'])->pluck('id');
$syncData = [];
foreach ($ids as $index => $id) {
if ($bookIds->contains($id)) {
$syncData[$id] = ['order' => $index];
}
}
$shelf->books()->sync($syncData);
}
/**
* Append a Book to a BookShelf.
* @param Bookshelf $shelf
* @param Book $book
*/
public function appendBookToShelf(Bookshelf $shelf, Book $book)
{
if ($shelf->contains($book)) {
return;
}
$maxOrder = $shelf->books()->max('order');
$shelf->books()->attach($book->id, ['order' => $maxOrder + 1]);
}
/**
* Change the book that an entity belongs to.
* @param string $type
* @param integer $newBookId
* @param Entity $entity
* @param bool $rebuildPermissions
* @return \BookStack\Entities\Entity
*/
public function changeBook($type, $newBookId, Entity $entity, $rebuildPermissions = false)
{
$entity->book_id = $newBookId;
// Update related activity
foreach ($entity->activity as $activity) {
$activity->book_id = $newBookId;
$activity->save();
}
$entity->slug = $this->findSuitableSlug($type, $entity->name, $entity->id, $newBookId);
$entity->save();
// Update all child pages if a chapter
if (strtolower($type) === 'chapter') {
foreach ($entity->pages as $page) {
$this->changeBook('page', $newBookId, $page, false);
}
}
// Update permissions if applicable
if ($rebuildPermissions) {
$entity->load('book');
$this->permissionService->buildJointPermissionsForEntity($entity->book);
}
return $entity;
}
/**
* Alias method to update the book jointPermissions in the PermissionService.
* @param Book $book
*/
public function buildJointPermissionsForBook(Book $book)
{
$this->permissionService->buildJointPermissionsForEntity($book);
}
/**
* Format a name as a url slug.
* @param $name
* @return string
*/
protected function nameToSlug($name)
{
$slug = preg_replace('/[\+\/\\\?\@\}\{\.\,\=\[\]\#\&\!\*\'\;\:\$\%]/', '', mb_strtolower($name));
$slug = preg_replace('/\s{2,}/', ' ', $slug);
$slug = str_replace(' ', '-', $slug);
if ($slug === "") {
$slug = substr(md5(rand(1, 500)), 0, 5);
}
return $slug;
}
/**
* Render the page for viewing
* @param Page $page
* @param bool $blankIncludes
* @return string
*/
public function renderPage(Page $page, bool $blankIncludes = false) : string
{
$content = $page->html;
if (!config('app.allow_content_scripts')) {
$content = $this->escapeScripts($content);
}
if ($blankIncludes) {
$content = $this->blankPageIncludes($content);
} else {
$content = $this->parsePageIncludes($content);
}
return $content;
}
/**
* Remove any page include tags within the given HTML.
* @param string $html
* @return string
*/
protected function blankPageIncludes(string $html) : string
{
return preg_replace("/{{@\s?([0-9].*?)}}/", '', $html);
}
/**
* Parse any include tags "{{@<page_id>#section}}" to be part of the page.
* @param string $html
* @return mixed|string
*/
protected function parsePageIncludes(string $html) : string
{
$matches = [];
preg_match_all("/{{@\s?([0-9].*?)}}/", $html, $matches);
$topLevelTags = ['table', 'ul', 'ol'];
foreach ($matches[1] as $index => $includeId) {
$splitInclude = explode('#', $includeId, 2);
$pageId = intval($splitInclude[0]);
if (is_nan($pageId)) {
continue;
}
$matchedPage = $this->getById('page', $pageId);
if ($matchedPage === null) {
$html = str_replace($matches[0][$index], '', $html);
continue;
}
if (count($splitInclude) === 1) {
$html = str_replace($matches[0][$index], $matchedPage->html, $html);
continue;
}
$doc = new DOMDocument();
$doc->loadHTML(mb_convert_encoding('<body>'.$matchedPage->html.'</body>', 'HTML-ENTITIES', 'UTF-8'));
$matchingElem = $doc->getElementById($splitInclude[1]);
if ($matchingElem === null) {
$html = str_replace($matches[0][$index], '', $html);
continue;
}
$innerContent = '';
$isTopLevel = in_array(strtolower($matchingElem->nodeName), $topLevelTags);
if ($isTopLevel) {
$innerContent .= $doc->saveHTML($matchingElem);
} else {
foreach ($matchingElem->childNodes as $childNode) {
$innerContent .= $doc->saveHTML($childNode);
}
}
$html = str_replace($matches[0][$index], trim($innerContent), $html);
}
return $html;
}
/**
* Escape script tags within HTML content.
* @param string $html
* @return string
*/
protected function escapeScripts(string $html) : string
{
$scriptSearchRegex = '/<script.*?>.*?<\/script>/ms';
$matches = [];
preg_match_all($scriptSearchRegex, $html, $matches);
foreach ($matches[0] as $match) {
$html = str_replace($match, htmlentities($match), $html);
}
return $html;
}
/**
* Search for image usage within page content.
* @param $imageString
* @return mixed
*/
public function searchForImage($imageString)
{
$pages = $this->entityQuery('page')->where('html', 'like', '%' . $imageString . '%')->get();
foreach ($pages as $page) {
$page->url = $page->getUrl();
$page->html = '';
$page->text = '';
}
return count($pages) > 0 ? $pages : false;
}
/**
* Destroy a bookshelf instance
* @param \BookStack\Entities\Bookshelf $shelf
* @throws \Throwable
*/
public function destroyBookshelf(Bookshelf $shelf)
{
$this->destroyEntityCommonRelations($shelf);
$shelf->delete();
}
/**
* Destroy the provided book and all its child entities.
* @param \BookStack\Entities\Book $book
* @throws NotifyException
* @throws \Throwable
*/
public function destroyBook(Book $book)
{
foreach ($book->pages as $page) {
$this->destroyPage($page);
}
foreach ($book->chapters as $chapter) {
$this->destroyChapter($chapter);
}
$this->destroyEntityCommonRelations($book);
$book->delete();
}
/**
* Destroy a chapter and its relations.
* @param \BookStack\Entities\Chapter $chapter
* @throws \Throwable
*/
public function destroyChapter(Chapter $chapter)
{
if (count($chapter->pages) > 0) {
foreach ($chapter->pages as $page) {
$page->chapter_id = 0;
$page->save();
}
}
$this->destroyEntityCommonRelations($chapter);
$chapter->delete();
}
/**
* Destroy a given page along with its dependencies.
* @param Page $page
* @throws NotifyException
* @throws \Throwable
*/
public function destroyPage(Page $page)
{
// Check if set as custom homepage
$customHome = setting('app-homepage', '0:');
if (intval($page->id) === intval(explode(':', $customHome)[0])) {
throw new NotifyException(trans('errors.page_custom_home_deletion'), $page->getUrl());
}
$this->destroyEntityCommonRelations($page);
// Delete Attached Files
$attachmentService = app(AttachmentService::class);
foreach ($page->attachments as $attachment) {
$attachmentService->deleteFile($attachment);
}
$page->delete();
}
/**
* Destroy or handle the common relations connected to an entity.
* @param \BookStack\Entities\Entity $entity
* @throws \Throwable
*/
protected function destroyEntityCommonRelations(Entity $entity)
{
\Activity::removeEntity($entity);
$entity->views()->delete();
$entity->permissions()->delete();
$entity->tags()->delete();
$entity->comments()->delete();
$this->permissionService->deleteJointPermissionsForEntity($entity);
$this->searchService->deleteEntityTerms($entity);
}
/**
* Copy the permissions of a bookshelf to all child books.
* Returns the number of books that had permissions updated.
* @param \BookStack\Entities\Bookshelf $bookshelf
* @return int
* @throws \Throwable
*/
public function copyBookshelfPermissions(Bookshelf $bookshelf)
{
$shelfPermissions = $bookshelf->permissions()->get(['role_id', 'action'])->toArray();
$shelfBooks = $bookshelf->books()->get();
$updatedBookCount = 0;
foreach ($shelfBooks as $book) {
if (!userCan('restrictions-manage', $book)) {
continue;
}
$book->permissions()->delete();
$book->restricted = $bookshelf->restricted;
$book->permissions()->createMany($shelfPermissions);
$book->save();
$this->permissionService->buildJointPermissionsForEntity($book);
$updatedBookCount++;
}
return $updatedBookCount;
}
}