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<?php |
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/****************************************************************************** |
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* Wikipedia Account Creation Assistance tool * |
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* * |
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* All code in this file is released into the public domain by the ACC * |
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* Development Team. Please see team.json for a list of contributors. * |
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******************************************************************************/ |
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namespace Waca\Pages; |
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use Exception; |
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use Waca\DataObjects\Comment; |
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use Waca\DataObjects\Request; |
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use Waca\DataObjects\User; |
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use Waca\Exceptions\AccessDeniedException; |
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use Waca\Exceptions\ApplicationLogicException; |
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use Waca\Helpers\Logger; |
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use Waca\SessionAlert; |
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use Waca\Tasks\InternalPageBase; |
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use Waca\WebRequest; |
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class PageEditComment extends InternalPageBase |
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{ |
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/** |
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* Main function for this page, when no specific actions are called. |
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* @throws ApplicationLogicException |
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* @throws Exception |
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*/ |
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protected function main() |
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{ |
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$commentId = WebRequest::getInt('id'); |
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if ($commentId === null) { |
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throw new ApplicationLogicException('Comment ID not specified'); |
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} |
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$database = $this->getDatabase(); |
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/** @var Comment|false $comment */ |
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$comment = Comment::getById($commentId, $database); |
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if ($comment === false) { |
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throw new ApplicationLogicException('Comment not found'); |
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} |
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$currentUser = User::getCurrent($database); |
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$this->checkCommentAccess($comment, $currentUser); |
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/** @var Request|false $request */ |
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$request = Request::getById($comment->getRequest(), $database); |
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if ($request === false) { |
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throw new ApplicationLogicException('Request was not found.'); |
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} |
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$canUnflag = $this->barrierTest('unflag', $currentUser, PageFlagComment::class); |
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if (WebRequest::wasPosted()) { |
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$this->validateCSRFToken(); |
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$newComment = WebRequest::postString('newcomment'); |
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$visibility = WebRequest::postString('visibility'); |
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$doUnflag = WebRequest::postBoolean('unflag'); |
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if ($newComment === null || $newComment === '') { |
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throw new ApplicationLogicException('Comment cannot be empty!'); |
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} |
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$commentDataUnchanged = $newComment === $comment->getComment() |
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&& ($comment->getVisibility() === 'requester' || $comment->getVisibility() === $visibility); |
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$flagStatusUnchanged = (!$canUnflag || $comment->getFlagged() && !$doUnflag); |
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if ($commentDataUnchanged && $flagStatusUnchanged) { |
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// No change was made; redirect back. |
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$this->redirectBack($comment->getRequest()); |
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return; |
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} |
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// optimistically lock from the load of the edit comment form |
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$updateVersion = WebRequest::postInt('updateversion'); |
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// comment data has changed, update the object |
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if (!$commentDataUnchanged) { |
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$this->updateCommentData($comment, $visibility, $newComment); |
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} |
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if ($doUnflag && $canUnflag) { |
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$comment->setFlagged(false); |
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} |
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$comment->setUpdateVersion($updateVersion); |
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$comment->save(); |
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if (!$commentDataUnchanged) { |
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Logger::editComment($database, $comment, $request); |
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$this->getNotificationHelper()->commentEdited($comment, $request); |
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} |
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if ($doUnflag && $canUnflag) { |
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Logger::unflaggedComment($database, $comment, $request->getDomain()); |
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} |
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SessionAlert::success('Comment has been saved successfully'); |
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$this->redirectBack($comment->getRequest()); |
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} |
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else { |
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$this->assignCSRFToken(); |
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$this->assign('comment', $comment); |
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$this->assign('request', $request); |
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$this->assign('user', User::getById($comment->getUser(), $database)); |
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$this->assign('canUnflag', $canUnflag); |
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$this->setTemplate('edit-comment.tpl'); |
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} |
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} |
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/** |
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* @throws AccessDeniedException |
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*/ |
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private function checkCommentAccess(Comment $comment, User $currentUser): void |
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{ |
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if ($comment->getUser() !== $currentUser->getId() && !$this->barrierTest('editOthers', $currentUser)) { |
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throw new AccessDeniedException($this->getSecurityManager(), $this->getDomainAccessManager()); |
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} |
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$restrictedVisibility = $comment->getFlagged() |
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|| $comment->getVisibility() === 'admin' |
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|| $comment->getVisibility() === 'checkuser'; |
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if ($restrictedVisibility && !$this->barrierTest('alwaysSeePrivateData', $currentUser, 'RequestData')) { |
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// Restricted visibility comments can only be seen if the user has a request reserved. |
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/** @var Request $request */ |
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$request = Request::getById($comment->getRequest(), $comment->getDatabase()); |
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if ($request->getReserved() !== $currentUser->getId()) { |
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throw new AccessDeniedException($this->getSecurityManager(), $this->getDomainAccessManager()); |
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} |
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} |
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if ($comment->getVisibility() === 'admin' |
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&& !$this->barrierTest('seeRestrictedComments', $currentUser, 'RequestData') |
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&& $comment->getUser() !== $currentUser->getId()) { |
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throw new AccessDeniedException($this->getSecurityManager(), $this->getDomainAccessManager()); |
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} |
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if ($comment->getVisibility() === 'checkuser' |
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&& !$this->barrierTest('seeCheckuserComments', $currentUser, 'RequestData') |
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&& $comment->getUser() !== $currentUser->getId()) { |
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throw new AccessDeniedException($this->getSecurityManager(), $this->getDomainAccessManager()); |
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} |
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} |
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/** |
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* @throws ApplicationLogicException |
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*/ |
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private function updateCommentData(Comment $comment, ?string $visibility, string $newComment): void |
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{ |
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if ($comment->getVisibility() !== 'requester') { |
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if ($visibility !== 'user' && $visibility !== 'admin' && $visibility !== 'checkuser') { |
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throw new ApplicationLogicException('Comment visibility is not valid'); |
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} |
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$comment->setVisibility($visibility); |
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} |
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$comment->setComment($newComment); |
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$comment->touchEdited(); |
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} |
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private function redirectBack(int $requestId): void |
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{ |
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$source = WebRequest::getString('from'); |
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if ($source == 'flagged') { |
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$this->redirect('flaggedComments'); |
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} |
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else { |
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$this->redirect('viewRequest', null, array('id' => $requestId)); |
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} |
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} |
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} |
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