BookStack Code Mirror - bookstack/blob - app/Http/Controllers/PageController.php

   1 <?php namespace BookStack\Http\Controllers;
   2
   3 use Activity;
   4 use BookStack\Exceptions\NotFoundException;
   5 use BookStack\Repos\EntityRepo;
   6 use BookStack\Repos\UserRepo;
   7 use BookStack\Services\ExportService;
   8 use Illuminate\Http\Request;
   9 use Illuminate\Http\Response;
  10 use Views;
  11 use GatherContent\Htmldiff\Htmldiff;
  12
  13 class PageController extends Controller
  14 {
  15
  16     protected $entityRepo;
  17     protected $exportService;
  18     protected $userRepo;
  19
  20     /**
  21      * PageController constructor.
  22      * @param EntityRepo $entityRepo
  23      * @param ExportService $exportService
  24      * @param UserRepo $userRepo
  25      */
  26     public function __construct(EntityRepo $entityRepo, ExportService $exportService, UserRepo $userRepo)
  27     {
  28         $this->entityRepo = $entityRepo;
  29         $this->exportService = $exportService;
  30         $this->userRepo = $userRepo;
  31         parent::__construct();
  32     }
  33
  34     /**
  35      * Show the form for creating a new page.
  36      * @param string $bookSlug
  37      * @param string $chapterSlug
  38      * @return Response
  39      * @internal param bool $pageSlug
  40      * @throws NotFoundException
  41      */
  42     public function create($bookSlug, $chapterSlug = null)
  43     {
  44         if ($chapterSlug !== null) {
  45             $chapter = $this->entityRepo->getBySlug('chapter', $chapterSlug, $bookSlug);
  46             $book = $chapter->book;
  47         } else {
  48             $chapter = null;
  49             $book = $this->entityRepo->getBySlug('book', $bookSlug);
  50         }
  51
  52         $parent = $chapter ? $chapter : $book;
  53         $this->checkOwnablePermission('page-create', $parent);
  54
  55         // Redirect to draft edit screen if signed in
  56         if ($this->signedIn) {
  57             $draft = $this->entityRepo->getDraftPage($book, $chapter);
  58             return redirect($draft->getUrl());
  59         }
  60
  61         // Otherwise show the edit view if they're a guest
  62         $this->setPageTitle(trans('entities.pages_new'));
  63         return view('pages/guest-create', ['parent' => $parent]);
  64     }
  65
  66     /**
  67      * Create a new page as a guest user.
  68      * @param Request $request
  69      * @param string $bookSlug
  70      * @param string|null $chapterSlug
  71      * @return mixed
  72      * @throws NotFoundException
  73      */
  74     public function createAsGuest(Request $request, $bookSlug, $chapterSlug = null)
  75     {
  76         $this->validate($request, [
  77             'name' => 'required|string|max:255'
  78         ]);
  79
  80         if ($chapterSlug !== null) {
  81             $chapter = $this->entityRepo->getBySlug('chapter', $chapterSlug, $bookSlug);
  82             $book = $chapter->book;
  83         } else {
  84             $chapter = null;
  85             $book = $this->entityRepo->getBySlug('book', $bookSlug);
  86         }
  87
  88         $parent = $chapter ? $chapter : $book;
  89         $this->checkOwnablePermission('page-create', $parent);
  90
  91         $page = $this->entityRepo->getDraftPage($book, $chapter);
  92         $this->entityRepo->publishPageDraft($page, [
  93             'name' => $request->get('name'),
  94             'html' => ''
  95         ]);
  96         return redirect($page->getUrl('/edit'));
  97     }
  98
  99     /**
 100      * Show form to continue editing a draft page.
 101      * @param string $bookSlug
 102      * @param int $pageId
 103      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
 104      */
 105     public function editDraft($bookSlug, $pageId)
 106     {
 107         $draft = $this->entityRepo->getById('page', $pageId, true);
 108         $this->checkOwnablePermission('page-create', $draft->parent);
 109         $this->setPageTitle(trans('entities.pages_edit_draft'));
 110
 111         $draftsEnabled = $this->signedIn;
 112         return view('pages/edit', [
 113             'page' => $draft,
 114             'book' => $draft->book,
 115             'isDraft' => true,
 116             'draftsEnabled' => $draftsEnabled
 117         ]);
 118     }
 119
 120     /**
 121      * Store a new page by changing a draft into a page.
 122      * @param  Request $request
 123      * @param  string $bookSlug
 124      * @param  int $pageId
 125      * @return Response
 126      */
 127     public function store(Request $request, $bookSlug, $pageId)
 128     {
 129         $this->validate($request, [
 130             'name' => 'required|string|max:255'
 131         ]);
 132
 133         $input = $request->all();
 134         $draftPage = $this->entityRepo->getById('page', $pageId, true);
 135         $book = $draftPage->book;
 136
 137         $parent = $draftPage->parent;
 138         $this->checkOwnablePermission('page-create', $parent);
 139
 140         if ($parent->isA('chapter')) {
 141             $input['priority'] = $this->entityRepo->getNewChapterPriority($parent);
 142         } else {
 143             $input['priority'] = $this->entityRepo->getNewBookPriority($parent);
 144         }
 145
 146         $page = $this->entityRepo->publishPageDraft($draftPage, $input);
 147
 148         Activity::add($page, 'page_create', $book->id);
 149         return redirect($page->getUrl());
 150     }
 151
 152     /**
 153      * Display the specified page.
 154      * If the page is not found via the slug the revisions are searched for a match.
 155      * @param string $bookSlug
 156      * @param string $pageSlug
 157      * @return Response
 158      * @throws NotFoundException
 159      */
 160     public function show($bookSlug, $pageSlug)
 161     {
 162         try {
 163             $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 164         } catch (NotFoundException $e) {
 165             $page = $this->entityRepo->getPageByOldSlug($pageSlug, $bookSlug);
 166             if ($page === null) {
 167                 throw $e;
 168             }
 169             return redirect($page->getUrl());
 170         }
 171
 172         $this->checkOwnablePermission('page-view', $page);
 173
 174         $page->html = $this->entityRepo->renderPage($page);
 175         $sidebarTree = $this->entityRepo->getBookChildren($page->book);
 176         $pageNav = $this->entityRepo->getPageNav($page->html);
 177
 178         // check if the comment's are enabled
 179         $commentsEnabled = !setting('app-disable-comments');
 180         if ($commentsEnabled) {
 181             $page->load(['comments.createdBy']);
 182         }
 183
 184         Views::add($page);
 185         $this->setPageTitle($page->getShortName());
 186         return view('pages/show', [
 187             'page' => $page,'book' => $page->book,
 188             'current' => $page,
 189             'sidebarTree' => $sidebarTree,
 190             'commentsEnabled' => $commentsEnabled,
 191             'pageNav' => $pageNav
 192         ]);
 193     }
 194
 195     /**
 196      * Get page from an ajax request.
 197      * @param int $pageId
 198      * @return \Illuminate\Http\JsonResponse
 199      */
 200     public function getPageAjax($pageId)
 201     {
 202         $page = $this->entityRepo->getById('page', $pageId);
 203         return response()->json($page);
 204     }
 205
 206     /**
 207      * Show the form for editing the specified page.
 208      * @param string $bookSlug
 209      * @param string $pageSlug
 210      * @return Response
 211      */
 212     public function edit($bookSlug, $pageSlug)
 213     {
 214         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 215         $this->checkOwnablePermission('page-update', $page);
 216         $this->setPageTitle(trans('entities.pages_editing_named', ['pageName'=>$page->getShortName()]));
 217         $page->isDraft = false;
 218
 219         // Check for active editing
 220         $warnings = [];
 221         if ($this->entityRepo->isPageEditingActive($page, 60)) {
 222             $warnings[] = $this->entityRepo->getPageEditingActiveMessage($page, 60);
 223         }
 224
 225         // Check for a current draft version for this user
 226         if ($this->entityRepo->hasUserGotPageDraft($page, $this->currentUser->id)) {
 227             $draft = $this->entityRepo->getUserPageDraft($page, $this->currentUser->id);
 228             $page->name = $draft->name;
 229             $page->html = $draft->html;
 230             $page->markdown = $draft->markdown;
 231             $page->isDraft = true;
 232             $warnings [] = $this->entityRepo->getUserPageDraftMessage($draft);
 233         }
 234
 235         if (count($warnings) > 0) {
 236             session()->flash('warning', implode("\n", $warnings));
 237         }
 238
 239         $draftsEnabled = $this->signedIn;
 240         return view('pages/edit', [
 241             'page' => $page,
 242             'book' => $page->book,
 243             'current' => $page,
 244             'draftsEnabled' => $draftsEnabled
 245         ]);
 246     }
 247
 248     /**
 249      * Update the specified page in storage.
 250      * @param  Request $request
 251      * @param  string $bookSlug
 252      * @param  string $pageSlug
 253      * @return Response
 254      */
 255     public function update(Request $request, $bookSlug, $pageSlug)
 256     {
 257         $this->validate($request, [
 258             'name' => 'required|string|max:255'
 259         ]);
 260         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 261         $this->checkOwnablePermission('page-update', $page);
 262         $this->entityRepo->updatePage($page, $page->book->id, $request->all());
 263         Activity::add($page, 'page_update', $page->book->id);
 264         return redirect($page->getUrl());
 265     }
 266
 267     /**
 268      * Save a draft update as a revision.
 269      * @param Request $request
 270      * @param int $pageId
 271      * @return \Illuminate\Http\JsonResponse
 272      */
 273     public function saveDraft(Request $request, $pageId)
 274     {
 275         $page = $this->entityRepo->getById('page', $pageId, true);
 276         $this->checkOwnablePermission('page-update', $page);
 277
 278         if (!$this->signedIn) {
 279             return response()->json([
 280                 'status' => 'error',
 281                 'message' => trans('errors.guests_cannot_save_drafts'),
 282             ], 500);
 283         }
 284
 285         $draft = $this->entityRepo->updatePageDraft($page, $request->only(['name', 'html', 'markdown']));
 286
 287         $updateTime = $draft->updated_at->timestamp;
 288         return response()->json([
 289             'status'    => 'success',
 290             'message'   => trans('entities.pages_edit_draft_save_at'),
 291             'timestamp' => $updateTime
 292         ]);
 293     }
 294
 295     /**
 296      * Redirect from a special link url which
 297      * uses the page id rather than the name.
 298      * @param int $pageId
 299      * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
 300      */
 301     public function redirectFromLink($pageId)
 302     {
 303         $page = $this->entityRepo->getById('page', $pageId);
 304         return redirect($page->getUrl());
 305     }
 306
 307     /**
 308      * Show the deletion page for the specified page.
 309      * @param string $bookSlug
 310      * @param string $pageSlug
 311      * @return \Illuminate\View\View
 312      */
 313     public function showDelete($bookSlug, $pageSlug)
 314     {
 315         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 316         $this->checkOwnablePermission('page-delete', $page);
 317         $this->setPageTitle(trans('entities.pages_delete_named', ['pageName'=>$page->getShortName()]));
 318         return view('pages/delete', ['book' => $page->book, 'page' => $page, 'current' => $page]);
 319     }
 320
 321
 322     /**
 323      * Show the deletion page for the specified page.
 324      * @param string $bookSlug
 325      * @param int $pageId
 326      * @return \Illuminate\View\View
 327      * @throws NotFoundException
 328      */
 329     public function showDeleteDraft($bookSlug, $pageId)
 330     {
 331         $page = $this->entityRepo->getById('page', $pageId, true);
 332         $this->checkOwnablePermission('page-update', $page);
 333         $this->setPageTitle(trans('entities.pages_delete_draft_named', ['pageName'=>$page->getShortName()]));
 334         return view('pages/delete', ['book' => $page->book, 'page' => $page, 'current' => $page]);
 335     }
 336
 337     /**
 338      * Remove the specified page from storage.
 339      * @param string $bookSlug
 340      * @param string $pageSlug
 341      * @return Response
 342      * @internal param int $id
 343      */
 344     public function destroy($bookSlug, $pageSlug)
 345     {
 346         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 347         $book = $page->book;
 348         $this->checkOwnablePermission('page-delete', $page);
 349         $this->entityRepo->destroyPage($page);
 350
 351         Activity::addMessage('page_delete', $book->id, $page->name);
 352         session()->flash('success', trans('entities.pages_delete_success'));
 353         return redirect($book->getUrl());
 354     }
 355
 356     /**
 357      * Remove the specified draft page from storage.
 358      * @param string $bookSlug
 359      * @param int $pageId
 360      * @return Response
 361      * @throws NotFoundException
 362      */
 363     public function destroyDraft($bookSlug, $pageId)
 364     {
 365         $page = $this->entityRepo->getById('page', $pageId, true);
 366         $book = $page->book;
 367         $this->checkOwnablePermission('page-update', $page);
 368         session()->flash('success', trans('entities.pages_delete_draft_success'));
 369         $this->entityRepo->destroyPage($page);
 370         return redirect($book->getUrl());
 371     }
 372
 373     /**
 374      * Shows the last revisions for this page.
 375      * @param string $bookSlug
 376      * @param string $pageSlug
 377      * @return \Illuminate\View\View
 378      */
 379     public function showRevisions($bookSlug, $pageSlug)
 380     {
 381         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 382         $this->setPageTitle(trans('entities.pages_revisions_named', ['pageName'=>$page->getShortName()]));
 383         return view('pages/revisions', ['page' => $page, 'book' => $page->book, 'current' => $page]);
 384     }
 385
 386     /**
 387      * Shows a preview of a single revision
 388      * @param string $bookSlug
 389      * @param string $pageSlug
 390      * @param int $revisionId
 391      * @return \Illuminate\View\View
 392      */
 393     public function showRevision($bookSlug, $pageSlug, $revisionId)
 394     {
 395         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 396         $revision = $page->revisions()->where('id', '=', $revisionId)->first();
 397         if ($revision === null) {
 398             abort(404);
 399         }
 400
 401         $page->fill($revision->toArray());
 402         $this->setPageTitle(trans('entities.pages_revision_named', ['pageName' => $page->getShortName()]));
 403
 404         return view('pages/revision', [
 405             'page' => $page,
 406             'book' => $page->book,
 407             'revision' => $revision
 408         ]);
 409     }
 410
 411     /**
 412      * Shows the changes of a single revision
 413      * @param string $bookSlug
 414      * @param string $pageSlug
 415      * @param int $revisionId
 416      * @return \Illuminate\View\View
 417      */
 418     public function showRevisionChanges($bookSlug, $pageSlug, $revisionId)
 419     {
 420         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 421         $revision = $page->revisions()->where('id', '=', $revisionId)->first();
 422         if ($revision === null) {
 423             abort(404);
 424         }
 425
 426         $prev = $revision->getPrevious();
 427         $prevContent = ($prev === null) ? '' : $prev->html;
 428         $diff = (new Htmldiff)->diff($prevContent, $revision->html);
 429
 430         $page->fill($revision->toArray());
 431         $this->setPageTitle(trans('entities.pages_revision_named', ['pageName'=>$page->getShortName()]));
 432
 433         return view('pages/revision', [
 434             'page' => $page,
 435             'book' => $page->book,
 436             'diff' => $diff,
 437             'revision' => $revision
 438         ]);
 439     }
 440
 441     /**
 442      * Restores a page using the content of the specified revision.
 443      * @param string $bookSlug
 444      * @param string $pageSlug
 445      * @param int $revisionId
 446      * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
 447      */
 448     public function restoreRevision($bookSlug, $pageSlug, $revisionId)
 449     {
 450         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 451         $this->checkOwnablePermission('page-update', $page);
 452         $page = $this->entityRepo->restorePageRevision($page, $page->book, $revisionId);
 453         Activity::add($page, 'page_restore', $page->book->id);
 454         return redirect($page->getUrl());
 455     }
 456
 457
 458     /**
 459      * Deletes a revision using the id of the specified revision.
 460      * @param string $bookSlug
 461      * @param string $pageSlug
 462      * @param int $revId
 463      * @throws NotFoundException
 464      * @throws BadRequestException
 465      * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
 466      */
 467     public function destroyRevision($bookSlug, $pageSlug, $revId)
 468     {
 469         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 470         $this->checkOwnablePermission('page-delete', $page);
 471
 472         $revision = $page->revisions()->where('id', '=', $revId)->first();
 473         if ($revision === null) {
 474             throw new NotFoundException("Revision #{$revId} not found");
 475         }
 476
 477         // Get the current revision for the page
 478         $currentRevision = $page->getCurrentRevision();
 479
 480         // Check if its the latest revision, cannot delete latest revision.
 481         if (intval($currentRevision->id) === intval($revId)) {
 482             session()->flash('error', trans('entities.revision_cannot_delete_latest'));
 483             return response()->view('pages/revisions', ['page' => $page, 'book' => $page->book, 'current' => $page], 400);
 484         }
 485
 486         $revision->delete();
 487         session()->flash('success', trans('entities.revision_delete_success'));
 488         return view('pages/revisions', ['page' => $page, 'book' => $page->book, 'current' => $page]);
 489     }
 490
 491     /**
 492      * Exports a page to a PDF.
 493      * https://github.com/barryvdh/laravel-dompdf
 494      * @param string $bookSlug
 495      * @param string $pageSlug
 496      * @return \Illuminate\Http\Response
 497      */
 498     public function exportPdf($bookSlug, $pageSlug)
 499     {
 500         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 501         $page->html = $this->entityRepo->renderPage($page);
 502         $pdfContent = $this->exportService->pageToPdf($page);
 503         return response()->make($pdfContent, 200, [
 504             'Content-Type'        => 'application/octet-stream',
 505             'Content-Disposition' => 'attachment; filename="' . $pageSlug . '.pdf'
 506         ]);
 507     }
 508
 509     /**
 510      * Export a page to a self-contained HTML file.
 511      * @param string $bookSlug
 512      * @param string $pageSlug
 513      * @return \Illuminate\Http\Response
 514      */
 515     public function exportHtml($bookSlug, $pageSlug)
 516     {
 517         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 518         $page->html = $this->entityRepo->renderPage($page);
 519         $containedHtml = $this->exportService->pageToContainedHtml($page);
 520         return response()->make($containedHtml, 200, [
 521             'Content-Type'        => 'application/octet-stream',
 522             'Content-Disposition' => 'attachment; filename="' . $pageSlug . '.html'
 523         ]);
 524     }
 525
 526     /**
 527      * Export a page to a simple plaintext .txt file.
 528      * @param string $bookSlug
 529      * @param string $pageSlug
 530      * @return \Illuminate\Http\Response
 531      */
 532     public function exportPlainText($bookSlug, $pageSlug)
 533     {
 534         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 535         $containedHtml = $this->exportService->pageToPlainText($page);
 536         return response()->make($containedHtml, 200, [
 537             'Content-Type'        => 'application/octet-stream',
 538             'Content-Disposition' => 'attachment; filename="' . $pageSlug . '.txt'
 539         ]);
 540     }
 541
 542     /**
 543      * Show a listing of recently created pages
 544      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
 545      */
 546     public function showRecentlyCreated()
 547     {
 548         $pages = $this->entityRepo->getRecentlyCreatedPaginated('page', 20)->setPath(baseUrl('/pages/recently-created'));
 549         return view('pages/detailed-listing', [
 550             'title' => trans('entities.recently_created_pages'),
 551             'pages' => $pages
 552         ]);
 553     }
 554
 555     /**
 556      * Show a listing of recently created pages
 557      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
 558      */
 559     public function showRecentlyUpdated()
 560     {
 561         $pages = $this->entityRepo->getRecentlyUpdatedPaginated('page', 20)->setPath(baseUrl('/pages/recently-updated'));
 562         return view('pages/detailed-listing', [
 563             'title' => trans('entities.recently_updated_pages'),
 564             'pages' => $pages
 565         ]);
 566     }
 567
 568     /**
 569      * Show the Restrictions view.
 570      * @param string $bookSlug
 571      * @param string $pageSlug
 572      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
 573      */
 574     public function showRestrict($bookSlug, $pageSlug)
 575     {
 576         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 577         $this->checkOwnablePermission('restrictions-manage', $page);
 578         $roles = $this->userRepo->getRestrictableRoles();
 579         return view('pages/restrictions', [
 580             'page'  => $page,
 581             'roles' => $roles
 582         ]);
 583     }
 584
 585     /**
 586      * Show the view to choose a new parent to move a page into.
 587      * @param string $bookSlug
 588      * @param string $pageSlug
 589      * @return mixed
 590      * @throws NotFoundException
 591      */
 592     public function showMove($bookSlug, $pageSlug)
 593     {
 594         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 595         $this->checkOwnablePermission('page-update', $page);
 596         return view('pages/move', [
 597             'book' => $page->book,
 598             'page' => $page
 599         ]);
 600     }
 601
 602     /**
 603      * Does the action of moving the location of a page
 604      * @param string $bookSlug
 605      * @param string $pageSlug
 606      * @param Request $request
 607      * @return mixed
 608      * @throws NotFoundException
 609      */
 610     public function move($bookSlug, $pageSlug, Request $request)
 611     {
 612         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 613         $this->checkOwnablePermission('page-update', $page);
 614
 615         $entitySelection = $request->get('entity_selection', null);
 616         if ($entitySelection === null || $entitySelection === '') {
 617             return redirect($page->getUrl());
 618         }
 619
 620         $stringExploded = explode(':', $entitySelection);
 621         $entityType = $stringExploded[0];
 622         $entityId = intval($stringExploded[1]);
 623
 624
 625         try {
 626             $parent = $this->entityRepo->getById($entityType, $entityId);
 627         } catch (\Exception $e) {
 628             session()->flash(trans('entities.selected_book_chapter_not_found'));
 629             return redirect()->back();
 630         }
 631
 632         $this->checkOwnablePermission('page-create', $parent);
 633
 634         $this->entityRepo->changePageParent($page, $parent);
 635         Activity::add($page, 'page_move', $page->book->id);
 636         session()->flash('success', trans('entities.pages_move_success', ['parentName' => $parent->name]));
 637
 638         return redirect($page->getUrl());
 639     }
 640
 641     /**
 642      * Show the view to copy a page.
 643      * @param string $bookSlug
 644      * @param string $pageSlug
 645      * @return mixed
 646      * @throws NotFoundException
 647      */
 648     public function showCopy($bookSlug, $pageSlug)
 649     {
 650         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 651         $this->checkOwnablePermission('page-update', $page);
 652         session()->flashInput(['name' => $page->name]);
 653         return view('pages/copy', [
 654             'book' => $page->book,
 655             'page' => $page
 656         ]);
 657     }
 658
 659     /**
 660      * Create a copy of a page within the requested target destination.
 661      * @param string $bookSlug
 662      * @param string $pageSlug
 663      * @param Request $request
 664      * @return mixed
 665      * @throws NotFoundException
 666      */
 667     public function copy($bookSlug, $pageSlug, Request $request)
 668     {
 669         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 670         $this->checkOwnablePermission('page-update', $page);
 671
 672         $entitySelection = $request->get('entity_selection', null);
 673         if ($entitySelection === null || $entitySelection === '') {
 674             $parent = $page->chapter ? $page->chapter : $page->book;
 675         } else {
 676             $stringExploded = explode(':', $entitySelection);
 677             $entityType = $stringExploded[0];
 678             $entityId = intval($stringExploded[1]);
 679
 680             try {
 681                 $parent = $this->entityRepo->getById($entityType, $entityId);
 682             } catch (\Exception $e) {
 683                 session()->flash(trans('entities.selected_book_chapter_not_found'));
 684                 return redirect()->back();
 685             }
 686         }
 687
 688         $this->checkOwnablePermission('page-create', $parent);
 689
 690         $pageCopy = $this->entityRepo->copyPage($page, $parent, $request->get('name', ''));
 691
 692         Activity::add($pageCopy, 'page_create', $pageCopy->book->id);
 693         session()->flash('success', trans('entities.pages_copy_success'));
 694
 695         return redirect($pageCopy->getUrl());
 696     }
 697
 698     /**
 699      * Set the permissions for this page.
 700      * @param string $bookSlug
 701      * @param string $pageSlug
 702      * @param Request $request
 703      * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
 704      * @throws NotFoundException
 705      */
 706     public function restrict($bookSlug, $pageSlug, Request $request)
 707     {
 708         $page = $this->entityRepo->getBySlug('page', $pageSlug, $bookSlug);
 709         $this->checkOwnablePermission('restrictions-manage', $page);
 710         $this->entityRepo->updateEntityPermissionsFromRequest($request, $page);
 711         session()->flash('success', trans('entities.pages_permissions_success'));
 712         return redirect($page->getUrl());
 713     }
 714 }