ParamValidatorCallbacks.php

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<?php
 
namespace MediaWiki\Rest\Validator;
 
use InvalidArgumentException;
use MediaWiki\Permissions\Authority;
use MediaWiki\Rest\RequestInterface;
use Psr\Http\Message\UploadedFileInterface;
use UtfNormal\Validator;
use Wikimedia\Message\DataMessageValue;
use Wikimedia\ParamValidator\Callbacks;
 
class ParamValidatorCallbacks implements Callbacks {
 
    private RequestInterface $request;
    private Authority $authority;
 
    public function __construct(
        RequestInterface $request,
        Authority $authority
    ) {
        $this->request = $request;
        $this->authority = $authority;
    }
 
    private function getParamsFromSource( $source ) {
        // This switch block must match Validator::KNOWN_PARAM_SOURCES
        switch ( $source ) {
            case 'path':
                return $this->request->getPathParams();
 
            case 'query':
                return $this->request->getQueryParams();
 
            case 'post':
                wfDeprecatedMsg( 'The "post" source is deprecated, use "body" instead', '1.43' );
                return $this->request->getPostParams();
 
            case 'body':
                return $this->request->getParsedBody() ?? [];
 
            default:
                throw new InvalidArgumentException( __METHOD__ . ": Invalid source '$source'" );
        }
    }
 
    public function hasParam( $name, array $options ) {
        $params = $this->getParamsFromSource( $options['source'] );
        return isset( $params[$name] );
    }
 
    public function getValue( $name, $default, array $options ) {
        $params = $this->getParamsFromSource( $options['source'] );
        $value = $params[$name] ?? $default;
 
        // Normalisation for body is being handled in Handler::parseBodyData
        if ( !isset( $options['raw'] ) && $options['source'] !== 'body' ) {
            if ( is_string( $value ) ) {
                // Normalize value to NFC UTF-8
                $normalizedValue = Validator::cleanUp( $value );
                // TODO: Warn if normalization was applied
 
                $value = $normalizedValue;
            }
        }
 
        return $value;
    }
 
    public function hasUpload( $name, array $options ) {
        if ( $options['source'] !== 'post' ) {
            return false;
        }
        return $this->getUploadedFile( $name, $options ) !== null;
    }
 
    public function getUploadedFile( $name, array $options ) {
        if ( $options['source'] !== 'post' ) {
            return null;
        }
        $upload = $this->request->getUploadedFiles()[$name] ?? null;
        return $upload instanceof UploadedFileInterface ? $upload : null;
    }
 
    public function recordCondition(
        DataMessageValue $message, $name, $value, array $settings, array $options
    ) {
        // @todo Figure out how to handle warnings
    }
 
    public function useHighLimits( array $options ) {
        return $this->authority->isAllowed( 'apihighlimits' );
    }
 
}