BookStack/app/Entities/EntityRepo.php

1295 lines
42 KiB
PHP

<?php namespace BookStack\Entities;
use BookStack\Actions\TagRepo;
use BookStack\Actions\ViewService;
use BookStack\Auth\Permissions\PermissionService;
use BookStack\Auth\User;
use BookStack\Exceptions\NotFoundException;
use BookStack\Exceptions\NotifyException;
use BookStack\Uploads\AttachmentService;
use Carbon\Carbon;
use DOMDocument;
use DOMXPath;
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;
}
/**
* Search through page revisions and retrieve the last page in the
* current book that has a slug equal to the one given.
* @param string $pageSlug
* @param string $bookSlug
* @return null|Page
*/
public function getPageByOldSlug($pageSlug, $bookSlug)
{
$revision = $this->entityProvider->pageRevision->where('slug', '=', $pageSlug)
->whereHas('page', function ($query) {
$this->permissionService->enforceEntityRestrictions('page', $query);
})
->where('type', '=', 'version')
->where('book_slug', '=', $bookSlug)
->orderBy('created_at', 'desc')
->with('page')->first();
return $revision !== null ? $revision->page : null;
}
/**
* 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 $count
* @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
*/
public function getAllPaginated($type, $count = 10)
{
return $this->entityQuery($type)->orderBy('name', 'asc')->paginate($count);
}
/**
* 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|bool $type
* @param int $count
* @param int $page
* @return mixed
*/
public function getPopular($type, $count = 10, $page = 0)
{
$filter = is_bool($type) ? false : $this->entityProvider->get($type);
return $this->viewService->getPopular($count, $page, $filter);
}
/**
* 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 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);
}
/**
* 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;
}
/**
* Get a new draft page instance.
* @param Book $book
* @param Chapter|bool $chapter
* @return \BookStack\Entities\Page
*/
public function getDraftPage(Book $book, $chapter = false)
{
$page = $this->entityProvider->page->newInstance();
$page->name = trans('entities.pages_initial_name');
$page->created_by = user()->id;
$page->updated_by = user()->id;
$page->draft = true;
if ($chapter) {
$page->chapter_id = $chapter->id;
}
$book->pages()->save($page);
$page = $this->entityProvider->page->find($page->id);
$this->permissionService->buildJointPermissionsForEntity($page);
return $page;
}
/**
* Publish a draft page to make it a normal page.
* Sets the slug and updates the content.
* @param Page $draftPage
* @param array $input
* @return Page
*/
public function publishPageDraft(Page $draftPage, array $input)
{
$draftPage->fill($input);
// Save page tags if present
if (isset($input['tags'])) {
$this->tagRepo->saveTagsToEntity($draftPage, $input['tags']);
}
$draftPage->slug = $this->findSuitableSlug('page', $draftPage->name, false, $draftPage->book->id);
$draftPage->html = $this->formatHtml($input['html']);
$draftPage->text = $this->pageToPlainText($draftPage);
$draftPage->draft = false;
$draftPage->revision_count = 1;
$draftPage->save();
$this->savePageRevision($draftPage, trans('entities.pages_initial_revision'));
$this->searchService->indexEntity($draftPage);
return $draftPage;
}
/**
* Create a copy of a page in a new location with a new name.
* @param \BookStack\Entities\Page $page
* @param \BookStack\Entities\Entity $newParent
* @param string $newName
* @return \BookStack\Entities\Page
*/
public function copyPage(Page $page, Entity $newParent, $newName = '')
{
$newBook = $newParent->isA('book') ? $newParent : $newParent->book;
$newChapter = $newParent->isA('chapter') ? $newParent : null;
$copyPage = $this->getDraftPage($newBook, $newChapter);
$pageData = $page->getAttributes();
// Update name
if (!empty($newName)) {
$pageData['name'] = $newName;
}
// Copy tags from previous page if set
if ($page->tags) {
$pageData['tags'] = [];
foreach ($page->tags as $tag) {
$pageData['tags'][] = ['name' => $tag->name, 'value' => $tag->value];
}
}
// Set priority
if ($newParent->isA('chapter')) {
$pageData['priority'] = $this->getNewChapterPriority($newParent);
} else {
$pageData['priority'] = $this->getNewBookPriority($newParent);
}
return $this->publishPageDraft($copyPage, $pageData);
}
/**
* Saves a page revision into the system.
* @param Page $page
* @param null|string $summary
* @return \BookStack\Entities\PageRevision
*/
public function savePageRevision(Page $page, $summary = null)
{
$revision = $this->entityProvider->pageRevision->newInstance($page->toArray());
if (setting('app-editor') !== 'markdown') {
$revision->markdown = '';
}
$revision->page_id = $page->id;
$revision->slug = $page->slug;
$revision->book_slug = $page->book->slug;
$revision->created_by = user()->id;
$revision->created_at = $page->updated_at;
$revision->type = 'version';
$revision->summary = $summary;
$revision->revision_number = $page->revision_count;
$revision->save();
$revisionLimit = config('app.revision_limit');
if ($revisionLimit !== false) {
$revisionsToDelete = $this->entityProvider->pageRevision->where('page_id', '=', $page->id)
->orderBy('created_at', 'desc')->skip(intval($revisionLimit))->take(10)->get(['id']);
if ($revisionsToDelete->count() > 0) {
$this->entityProvider->pageRevision->whereIn('id', $revisionsToDelete->pluck('id'))->delete();
}
}
return $revision;
}
/**
* Formats a page's html to be tagged correctly
* within the system.
* @param string $htmlText
* @return string
*/
protected function formatHtml($htmlText)
{
if ($htmlText == '') {
return $htmlText;
}
libxml_use_internal_errors(true);
$doc = new DOMDocument();
$doc->loadHTML(mb_convert_encoding($htmlText, 'HTML-ENTITIES', 'UTF-8'));
$container = $doc->documentElement;
$body = $container->childNodes->item(0);
$childNodes = $body->childNodes;
// Ensure no duplicate ids are used
$idArray = [];
foreach ($childNodes as $index => $childNode) {
/** @var \DOMElement $childNode */
if (get_class($childNode) !== 'DOMElement') {
continue;
}
// Overwrite id if not a BookStack custom id
if ($childNode->hasAttribute('id')) {
$id = $childNode->getAttribute('id');
if (strpos($id, 'bkmrk') === 0 && array_search($id, $idArray) === false) {
$idArray[] = $id;
continue;
};
}
// Create an unique id for the element
// Uses the content as a basis to ensure output is the same every time
// the same content is passed through.
$contentId = 'bkmrk-' . substr(strtolower(preg_replace('/\s+/', '-', trim($childNode->nodeValue))), 0, 20);
$newId = urlencode($contentId);
$loopIndex = 0;
while (in_array($newId, $idArray)) {
$newId = urlencode($contentId . '-' . $loopIndex);
$loopIndex++;
}
$childNode->setAttribute('id', $newId);
$idArray[] = $newId;
}
// Generate inner html as a string
$html = '';
foreach ($childNodes as $childNode) {
$html .= $doc->saveHTML($childNode);
}
return $html;
}
/**
* Render the page for viewing, Parsing and performing features such as page transclusion.
* @param Page $page
* @param bool $ignorePermissions
* @return mixed|string
*/
public function renderPage(Page $page, $ignorePermissions = false)
{
$content = $page->html;
if (!config('app.allow_content_scripts')) {
$content = $this->escapeScripts($content);
}
$matches = [];
preg_match_all("/{{@\s?([0-9].*?)}}/", $content, $matches);
if (count($matches[0]) === 0) {
return $content;
}
$topLevelTags = ['table', 'ul', 'ol'];
foreach ($matches[1] as $index => $includeId) {
$splitInclude = explode('#', $includeId, 2);
$pageId = intval($splitInclude[0]);
if (is_nan($pageId)) {
continue;
}
$matchedPage = $this->getById('page', $pageId, false, $ignorePermissions);
if ($matchedPage === null) {
$content = str_replace($matches[0][$index], '', $content);
continue;
}
if (count($splitInclude) === 1) {
$content = str_replace($matches[0][$index], $matchedPage->html, $content);
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) {
$content = str_replace($matches[0][$index], '', $content);
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);
}
}
$content = str_replace($matches[0][$index], trim($innerContent), $content);
}
return $content;
}
/**
* Escape script tags within HTML content.
* @param string $html
* @return mixed
*/
protected function escapeScripts(string $html)
{
$scriptSearchRegex = '/<script.*?>.*?<\/script>/ms';
$matches = [];
preg_match_all($scriptSearchRegex, $html, $matches);
if (count($matches) === 0) {
return $html;
}
foreach ($matches[0] as $match) {
$html = str_replace($match, htmlentities($match), $html);
}
return $html;
}
/**
* Get the plain text version of a page's content.
* @param \BookStack\Entities\Page $page
* @return string
*/
public function pageToPlainText(Page $page)
{
$html = $this->renderPage($page);
return strip_tags($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;
}
/**
* Parse the headers on the page to get a navigation menu
* @param String $pageContent
* @return array
*/
public function getPageNav($pageContent)
{
if ($pageContent == '') {
return [];
}
libxml_use_internal_errors(true);
$doc = new DOMDocument();
$doc->loadHTML(mb_convert_encoding($pageContent, 'HTML-ENTITIES', 'UTF-8'));
$xPath = new DOMXPath($doc);
$headers = $xPath->query("//h1|//h2|//h3|//h4|//h5|//h6");
if (is_null($headers)) {
return [];
}
$tree = collect([]);
foreach ($headers as $header) {
$text = $header->nodeValue;
$tree->push([
'nodeName' => strtolower($header->nodeName),
'level' => intval(str_replace('h', '', $header->nodeName)),
'link' => '#' . $header->getAttribute('id'),
'text' => strlen($text) > 30 ? substr($text, 0, 27) . '...' : $text
]);
}
// Normalise headers if only smaller headers have been used
if (count($tree) > 0) {
$minLevel = $tree->pluck('level')->min();
$tree = $tree->map(function ($header) use ($minLevel) {
$header['level'] -= ($minLevel - 2);
return $header;
});
}
return $tree->toArray();
}
/**
* Updates a page with any fillable data and saves it into the database.
* @param \BookStack\Entities\Page $page
* @param int $book_id
* @param array $input
* @return \BookStack\Entities\Page
*/
public function updatePage(Page $page, $book_id, $input)
{
// Hold the old details to compare later
$oldHtml = $page->html;
$oldName = $page->name;
// Prevent slug being updated if no name change
if ($page->name !== $input['name']) {
$page->slug = $this->findSuitableSlug('page', $input['name'], $page->id, $book_id);
}
// Save page tags if present
if (isset($input['tags'])) {
$this->tagRepo->saveTagsToEntity($page, $input['tags']);
}
// Update with new details
$userId = user()->id;
$page->fill($input);
$page->html = $this->formatHtml($input['html']);
$page->text = $this->pageToPlainText($page);
if (setting('app-editor') !== 'markdown') {
$page->markdown = '';
}
$page->updated_by = $userId;
$page->revision_count++;
$page->save();
// Remove all update drafts for this user & page.
$this->userUpdatePageDraftsQuery($page, $userId)->delete();
// Save a revision after updating
if ($oldHtml !== $input['html'] || $oldName !== $input['name'] || $input['summary'] !== null) {
$this->savePageRevision($page, $input['summary']);
}
$this->searchService->indexEntity($page);
return $page;
}
/**
* The base query for getting user update drafts.
* @param \BookStack\Entities\Page $page
* @param $userId
* @return mixed
*/
protected function userUpdatePageDraftsQuery(Page $page, $userId)
{
return $this->entityProvider->pageRevision->where('created_by', '=', $userId)
->where('type', 'update_draft')
->where('page_id', '=', $page->id)
->orderBy('created_at', 'desc');
}
/**
* Checks whether a user has a draft version of a particular page or not.
* @param \BookStack\Entities\Page $page
* @param $userId
* @return bool
*/
public function hasUserGotPageDraft(Page $page, $userId)
{
return $this->userUpdatePageDraftsQuery($page, $userId)->count() > 0;
}
/**
* Get the latest updated draft revision for a particular page and user.
* @param Page $page
* @param $userId
* @return mixed
*/
public function getUserPageDraft(Page $page, $userId)
{
return $this->userUpdatePageDraftsQuery($page, $userId)->first();
}
/**
* Get the notification message that informs the user that they are editing a draft page.
* @param PageRevision $draft
* @return string
*/
public function getUserPageDraftMessage(PageRevision $draft)
{
$message = trans('entities.pages_editing_draft_notification', ['timeDiff' => $draft->updated_at->diffForHumans()]);
if ($draft->page->updated_at->timestamp <= $draft->updated_at->timestamp) {
return $message;
}
return $message . "\n" . trans('entities.pages_draft_edited_notification');
}
/**
* Check if a page is being actively editing.
* Checks for edits since last page updated.
* Passing in a minuted range will check for edits
* within the last x minutes.
* @param \BookStack\Entities\Page $page
* @param null $minRange
* @return bool
*/
public function isPageEditingActive(Page $page, $minRange = null)
{
$draftSearch = $this->activePageEditingQuery($page, $minRange);
return $draftSearch->count() > 0;
}
/**
* A query to check for active update drafts on a particular page.
* @param Page $page
* @param null $minRange
* @return mixed
*/
protected function activePageEditingQuery(Page $page, $minRange = null)
{
$query = $this->entityProvider->pageRevision->where('type', '=', 'update_draft')
->where('page_id', '=', $page->id)
->where('updated_at', '>', $page->updated_at)
->where('created_by', '!=', user()->id)
->with('createdBy');
if ($minRange !== null) {
$query = $query->where('updated_at', '>=', Carbon::now()->subMinutes($minRange));
}
return $query;
}
/**
* Restores a revision's content back into a page.
* @param Page $page
* @param Book $book
* @param int $revisionId
* @return \BookStack\Entities\Page
*/
public function restorePageRevision(Page $page, Book $book, $revisionId)
{
$page->revision_count++;
$this->savePageRevision($page);
$revision = $page->revisions()->where('id', '=', $revisionId)->first();
$page->fill($revision->toArray());
$page->slug = $this->findSuitableSlug('page', $page->name, $page->id, $book->id);
$page->text = $this->pageToPlainText($page);
$page->updated_by = user()->id;
$page->save();
$this->searchService->indexEntity($page);
return $page;
}
/**
* Save a page update draft.
* @param Page $page
* @param array $data
* @return PageRevision|Page
*/
public function updatePageDraft(Page $page, $data = [])
{
// If the page itself is a draft simply update that
if ($page->draft) {
$page->fill($data);
if (isset($data['html'])) {
$page->text = $this->pageToPlainText($page);
}
$page->save();
return $page;
}
// Otherwise save the data to a revision
$userId = user()->id;
$drafts = $this->userUpdatePageDraftsQuery($page, $userId)->get();
if ($drafts->count() > 0) {
$draft = $drafts->first();
} else {
$draft = $this->entityProvider->pageRevision->newInstance();
$draft->page_id = $page->id;
$draft->slug = $page->slug;
$draft->book_slug = $page->book->slug;
$draft->created_by = $userId;
$draft->type = 'update_draft';
}
$draft->fill($data);
if (setting('app-editor') !== 'markdown') {
$draft->markdown = '';
}
$draft->save();
return $draft;
}
/**
* Get a notification message concerning the editing activity on a particular page.
* @param Page $page
* @param null $minRange
* @return string
*/
public function getPageEditingActiveMessage(Page $page, $minRange = null)
{
$pageDraftEdits = $this->activePageEditingQuery($page, $minRange)->get();
$userMessage = $pageDraftEdits->count() > 1 ? trans('entities.pages_draft_edit_active.start_a', ['count' => $pageDraftEdits->count()]): trans('entities.pages_draft_edit_active.start_b', ['userName' => $pageDraftEdits->first()->createdBy->name]);
$timeMessage = $minRange === null ? trans('entities.pages_draft_edit_active.time_a') : trans('entities.pages_draft_edit_active.time_b', ['minCount'=>$minRange]);
return trans('entities.pages_draft_edit_active.message', ['start' => $userMessage, 'time' => $timeMessage]);
}
/**
* Change the page's parent to the given entity.
* @param \BookStack\Entities\Page $page
* @param \BookStack\Entities\Entity $parent
*/
public function changePageParent(Page $page, Entity $parent)
{
$book = $parent->isA('book') ? $parent : $parent->book;
$page->chapter_id = $parent->isA('chapter') ? $parent->id : 0;
$page->save();
if ($page->book->id !== $book->id) {
$page = $this->changeBook('page', $book->id, $page);
}
$page->load('book');
$this->permissionService->buildJointPermissionsForEntity($book);
}
/**
* 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;
}
}