BookStack/app/Http/Controllers/AttachmentController.php

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<?php namespace BookStack\Http\Controllers;
use BookStack\Entities\Repos\PageRepo;
use BookStack\Exceptions\FileUploadException;
use BookStack\Exceptions\NotFoundException;
use BookStack\Uploads\Attachment;
use BookStack\Uploads\AttachmentService;
use Exception;
use Illuminate\Contracts\Filesystem\FileNotFoundException;
use Illuminate\Http\Request;
use Illuminate\Validation\ValidationException;
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class AttachmentController extends Controller
{
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protected $attachmentService;
protected $attachment;
protected $pageRepo;
/**
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* AttachmentController constructor.
*/
public function __construct(AttachmentService $attachmentService, Attachment $attachment, PageRepo $pageRepo)
{
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$this->attachmentService = $attachmentService;
$this->attachment = $attachment;
$this->pageRepo = $pageRepo;
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parent::__construct();
}
/**
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* Endpoint at which attachments are uploaded to.
* @throws ValidationException
* @throws NotFoundException
*/
public function upload(Request $request)
{
$this->validate($request, [
'uploaded_to' => 'required|integer|exists:pages,id',
'file' => 'required|file'
]);
$pageId = $request->get('uploaded_to');
$page = $this->pageRepo->getById($pageId);
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$this->checkPermission('attachment-create-all');
$this->checkOwnablePermission('page-update', $page);
$uploadedFile = $request->file('file');
try {
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$attachment = $this->attachmentService->saveNewUpload($uploadedFile, $pageId);
} catch (FileUploadException $e) {
return response($e->getMessage(), 500);
}
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return response()->json($attachment);
}
/**
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* Update an uploaded attachment.
* @throws ValidationException
* @throws NotFoundException
*/
public function uploadUpdate(Request $request, $attachmentId)
{
$this->validate($request, [
'uploaded_to' => 'required|integer|exists:pages,id',
'file' => 'required|file'
]);
$pageId = $request->get('uploaded_to');
$page = $this->pageRepo->getById($pageId);
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$attachment = $this->attachment->findOrFail($attachmentId);
$this->checkOwnablePermission('page-update', $page);
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$this->checkOwnablePermission('attachment-create', $attachment);
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if (intval($pageId) !== intval($attachment->uploaded_to)) {
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return $this->jsonError(trans('errors.attachment_page_mismatch'));
}
$uploadedFile = $request->file('file');
try {
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$attachment = $this->attachmentService->saveUpdatedUpload($uploadedFile, $attachment);
} catch (FileUploadException $e) {
return response($e->getMessage(), 500);
}
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return response()->json($attachment);
}
/**
* Update the details of an existing file.
* @throws ValidationException
* @throws NotFoundException
*/
public function update(Request $request, $attachmentId)
{
$this->validate($request, [
'uploaded_to' => 'required|integer|exists:pages,id',
'name' => 'required|string|min:1|max:255',
'link' => 'string|min:1|max:255'
]);
$pageId = $request->get('uploaded_to');
$page = $this->pageRepo->getById($pageId);
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$attachment = $this->attachment->findOrFail($attachmentId);
$this->checkOwnablePermission('page-update', $page);
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$this->checkOwnablePermission('attachment-create', $attachment);
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if (intval($pageId) !== intval($attachment->uploaded_to)) {
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return $this->jsonError(trans('errors.attachment_page_mismatch'));
}
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$attachment = $this->attachmentService->updateFile($attachment, $request->all());
return response()->json($attachment);
}
/**
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* Attach a link to a page.
* @throws ValidationException
* @throws NotFoundException
*/
public function attachLink(Request $request)
{
$this->validate($request, [
'uploaded_to' => 'required|integer|exists:pages,id',
'name' => 'required|string|min:1|max:255',
'link' => 'required|string|min:1|max:255'
]);
$pageId = $request->get('uploaded_to');
$page = $this->pageRepo->getById($pageId);
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$this->checkPermission('attachment-create-all');
$this->checkOwnablePermission('page-update', $page);
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$attachmentName = $request->get('name');
$link = $request->get('link');
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$attachment = $this->attachmentService->saveNewFromLink($attachmentName, $link, $pageId);
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return response()->json($attachment);
}
/**
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* Get the attachments for a specific page.
*/
public function listForPage(int $pageId)
{
$page = $this->pageRepo->getById($pageId);
$this->checkOwnablePermission('page-view', $page);
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return response()->json($page->attachments);
}
/**
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* Update the attachment sorting.
* @throws ValidationException
* @throws NotFoundException
*/
public function sortForPage(Request $request, int $pageId)
{
$this->validate($request, [
'files' => 'required|array',
'files.*.id' => 'required|integer',
]);
$page = $this->pageRepo->getById($pageId);
$this->checkOwnablePermission('page-update', $page);
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$attachments = $request->get('files');
$this->attachmentService->updateFileOrderWithinPage($attachments, $pageId);
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return response()->json(['message' => trans('entities.attachments_order_updated')]);
}
/**
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* Get an attachment from storage.
* @throws FileNotFoundException
* @throws NotFoundException
*/
public function get(int $attachmentId)
{
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$attachment = $this->attachment->findOrFail($attachmentId);
try {
$page = $this->pageRepo->getById($attachment->uploaded_to);
} catch (NotFoundException $exception) {
throw new NotFoundException(trans('errors.attachment_not_found'));
}
$this->checkOwnablePermission('page-view', $page);
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if ($attachment->external) {
return redirect($attachment->path);
}
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$attachmentContents = $this->attachmentService->getAttachmentFromStorage($attachment);
return $this->downloadResponse($attachmentContents, $attachment->getFileName());
}
/**
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* Delete a specific attachment in the system.
* @param $attachmentId
* @return mixed
* @throws Exception
*/
public function delete(int $attachmentId)
{
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$attachment = $this->attachment->findOrFail($attachmentId);
$this->checkOwnablePermission('attachment-delete', $attachment);
$this->attachmentService->deleteFile($attachment);
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return response()->json(['message' => trans('entities.attachments_deleted')]);
}
}