EditRightConstraint.php

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<?php
namespace MediaWiki\EditPage\Constraint;
 
use MediaWiki\Permissions\PermissionManager;
use MediaWiki\Title\Title;
use MediaWiki\User\User;
use StatusValue;
 
class EditRightConstraint implements IEditConstraint {
 
    private User $performer;
    private PermissionManager $permManager;
    private Title $title;
    private string $result;
    private bool $new;
 
    public function __construct(
        User $performer,
        PermissionManager $permManager,
        Title $title,
        bool $new
    ) {
        $this->performer = $performer;
        $this->permManager = $permManager;
        $this->title = $title;
        $this->new = $new;
    }
 
    public function checkConstraint(): string {
        if ( $this->new ) {
            // Check isn't simple enough to just repeat when getting the status
            if ( !$this->performer->authorizeWrite( 'create', $this->title ) ) {
                $this->result = (string)self::AS_NO_CREATE_PERMISSION;
                return self::CONSTRAINT_FAILED;
            }
        }
 
        // Check isn't simple enough to just repeat when getting the status
        // Prior to 1.41 this checked if the user had edit rights in general
        // instead of for the specific page in question.
        if ( !$this->permManager->userCan(
            'edit',
            $this->performer,
            $this->title
        ) ) {
            $this->result = self::CONSTRAINT_FAILED;
            return self::CONSTRAINT_FAILED;
        }
 
        $this->result = self::CONSTRAINT_PASSED;
        return self::CONSTRAINT_PASSED;
    }
 
    public function getLegacyStatus(): StatusValue {
        $statusValue = StatusValue::newGood();
 
        if ( $this->result === self::CONSTRAINT_FAILED ) {
            if ( !$this->performer->isRegistered() ) {
                $statusValue->setResult( false, self::AS_READ_ONLY_PAGE_ANON );
            } else {
                $statusValue->fatal( 'readonlytext' );
                $statusValue->value = self::AS_READ_ONLY_PAGE_LOGGED;
            }
        } elseif ( $this->result === (string)self::AS_NO_CREATE_PERMISSION ) {
            $statusValue->fatal( 'nocreatetext' );
            $statusValue->value = self::AS_NO_CREATE_PERMISSION;
        }
 
        return $statusValue;
    }
 
}