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| 1 | <?php |
| 2 | |
| 3 | declare( strict_types = 1 ); |
| 4 | |
| 5 | namespace EntitySchema\MediaWiki\Actions; |
| 6 | |
| 7 | use EditAction; |
| 8 | use MediaWiki\Html\Html; |
| 9 | use MediaWiki\MediaWikiServices; |
| 10 | use MediaWiki\Request\WebRequest; |
| 11 | use MediaWiki\Revision\RevisionRecord; |
| 12 | use MediaWiki\Status\Status; |
| 13 | use PermissionsError; |
| 14 | use ReadOnlyError; |
| 15 | use UserBlockedError; |
| 16 | |
| 17 | /** |
| 18 | * @license GPL-2.0-or-later |
| 19 | */ |
| 20 | abstract class AbstractRestoreAction extends EditAction { |
| 21 | |
| 22 | public function getRestriction(): string { |
| 23 | return 'edit'; |
| 24 | } |
| 25 | |
| 26 | protected function getRevisionFromRequest( WebRequest $req ): Status { |
| 27 | $restoreID = $req->getInt( 'restore' ); |
| 28 | $revStore = MediaWikiServices::getInstance()->getRevisionStore(); |
| 29 | $revToRestore = $revStore->getRevisionById( $restoreID ); |
| 30 | if ( $revToRestore === null || $revToRestore->isDeleted( RevisionRecord::DELETED_TEXT ) ) { |
| 31 | return Status::newFatal( $this->msg( 'entityschema-restore-bad-revisions' ) ); |
| 32 | } |
| 33 | |
| 34 | if ( $revToRestore->getPageId() !== $this->getTitle()->getArticleID() ) { |
| 35 | return Status::newFatal( $this->msg( 'entityschema-error-wrong-page-revisions' ) ); |
| 36 | } |
| 37 | |
| 38 | return Status::newGood( $revToRestore ); |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * @throws ReadOnlyError |
| 43 | * @throws UserBlockedError |
| 44 | * @throws PermissionsError |
| 45 | */ |
| 46 | protected function checkPermissions(): void { |
| 47 | $services = MediaWikiServices::getInstance(); |
| 48 | $pm = $services->getPermissionManager(); |
| 49 | $checkReplica = !$this->getRequest()->wasPosted(); |
| 50 | |
| 51 | $permissionErrors = $pm->getPermissionErrors( |
| 52 | $this->getRestriction(), |
| 53 | $this->getUser(), |
| 54 | $this->getTitle(), |
| 55 | $checkReplica ? $pm::RIGOR_FULL : $pm::RIGOR_SECURE |
| 56 | ); |
| 57 | if ( $permissionErrors !== [] ) { |
| 58 | throw new PermissionsError( $this->getRestriction(), $permissionErrors ); |
| 59 | } |
| 60 | |
| 61 | if ( $services->getReadOnlyMode()->isReadOnly() ) { |
| 62 | throw new ReadOnlyError; |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * Output an error page showing the given status |
| 68 | * |
| 69 | * @param Status $status The status to report. |
| 70 | */ |
| 71 | protected function showRestoreErrorPage( Status $status ): void { |
| 72 | $this->getOutput()->prepareErrorPage(); |
| 73 | $this->getOutput()->setPageTitleMsg( |
| 74 | $this->msg( 'entityschema-restore-heading-failed' ) |
| 75 | ); |
| 76 | $this->getOutput()->setHTMLTitle( |
| 77 | $this->msg( 'errorpagetitle' ) |
| 78 | ); |
| 79 | |
| 80 | $this->getOutput()->addHTML( Html::errorBox( $status->getMessage()->parse() ) ); |
| 81 | |
| 82 | $this->getOutput()->returnToMain( null, $this->getTitle() ); |
| 83 | } |
| 84 | |
| 85 | } |