ApiQueryRevisionsBase.php

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<?php
use MediaWiki\Revision\RevisionAccessException;
use MediaWiki\Revision\RevisionRecord;
use MediaWiki\Revision\SlotRecord;
use MediaWiki\MediaWikiServices;

abstract class ApiQueryRevisionsBase extends ApiQueryGeneratorBase {

    // Bits to indicate the results of the revdel permission check on a revision,
    // see self::checkRevDel()
    const IS_DELETED = 1; // Whether the field is revision-deleted
    const CANNOT_VIEW = 2; // Whether the user cannot view the field due to revdel

    protected $limit, $diffto, $difftotext, $difftotextpst, $expandTemplates, $generateXML,
        $section, $parseContent, $fetchContent, $contentFormat, $setParsedLimit = true,
        $slotRoles = null, $needSlots;

    protected $fld_ids = false, $fld_flags = false, $fld_timestamp = false,
        $fld_size = false, $fld_slotsize = false, $fld_sha1 = false, $fld_slotsha1 = false,
        $fld_comment = false, $fld_parsedcomment = false, $fld_user = false, $fld_userid = false,
        $fld_content = false, $fld_tags = false, $fld_contentmodel = false, $fld_roles = false,
        $fld_parsetree = false;

    public function execute() {
        $this->run();
    }

    public function executeGenerator( $resultPageSet ) {
        $this->run( $resultPageSet );
    }

    abstract protected function run( ApiPageSet $resultPageSet = null );

    protected function parseParameters( $params ) {
        $prop = array_flip( $params['prop'] );

        $this->fld_ids = isset( $prop['ids'] );
        $this->fld_flags = isset( $prop['flags'] );
        $this->fld_timestamp = isset( $prop['timestamp'] );
        $this->fld_comment = isset( $prop['comment'] );
        $this->fld_parsedcomment = isset( $prop['parsedcomment'] );
        $this->fld_size = isset( $prop['size'] );
        $this->fld_slotsize = isset( $prop['slotsize'] );
        $this->fld_sha1 = isset( $prop['sha1'] );
        $this->fld_slotsha1 = isset( $prop['slotsha1'] );
        $this->fld_content = isset( $prop['content'] );
        $this->fld_contentmodel = isset( $prop['contentmodel'] );
        $this->fld_userid = isset( $prop['userid'] );
        $this->fld_user = isset( $prop['user'] );
        $this->fld_tags = isset( $prop['tags'] );
        $this->fld_roles = isset( $prop['roles'] );
        $this->fld_parsetree = isset( $prop['parsetree'] );

        $this->slotRoles = $params['slots'];

        if ( $this->slotRoles !== null ) {
            if ( $this->fld_parsetree ) {
                $this->dieWithError( [
                    'apierror-invalidparammix-cannotusewith',
                    $this->encodeParamName( 'prop=parsetree' ),
                    $this->encodeParamName( 'slots' ),
                ], 'invalidparammix' );
            }
            foreach ( [
                'expandtemplates', 'generatexml', 'parse', 'diffto', 'difftotext', 'difftotextpst',
                'contentformat'
            ] as $p ) {
                if ( $params[$p] !== null && $params[$p] !== false ) {
                    $this->dieWithError( [
                        'apierror-invalidparammix-cannotusewith',
                        $this->encodeParamName( $p ),
                        $this->encodeParamName( 'slots' ),
                    ], 'invalidparammix' );
                }
            }
        }

        if ( !empty( $params['contentformat'] ) ) {
            $this->contentFormat = $params['contentformat'];
        }

        $this->limit = $params['limit'];

        if ( !is_null( $params['difftotext'] ) ) {
            $this->difftotext = $params['difftotext'];
            $this->difftotextpst = $params['difftotextpst'];
        } elseif ( !is_null( $params['diffto'] ) ) {
            if ( $params['diffto'] == 'cur' ) {
                $params['diffto'] = 0;
            }
            if ( ( !ctype_digit( $params['diffto'] ) || $params['diffto'] < 0 )
                && $params['diffto'] != 'prev' && $params['diffto'] != 'next'
            ) {
                $p = $this->getModulePrefix();
                $this->dieWithError( [ 'apierror-baddiffto', $p ], 'diffto' );
            }
            // Check whether the revision exists and is readable,
            // DifferenceEngine returns a rather ambiguous empty
            // string if that's not the case
            if ( $params['diffto'] != 0 ) {
                $difftoRev = MediaWikiServices::getInstance()->getRevisionStore()
                    ->getRevisionById( $params['diffto'] );
                if ( !$difftoRev ) {
                    $this->dieWithError( [ 'apierror-nosuchrevid', $params['diffto'] ] );
                }
                $revDel = $this->checkRevDel( $difftoRev, RevisionRecord::DELETED_TEXT );
                if ( $revDel & self::CANNOT_VIEW ) {
                    $this->addWarning( [ 'apiwarn-difftohidden', $difftoRev->getId() ] );
                    $params['diffto'] = null;
                }
            }
            $this->diffto = $params['diffto'];
        }

        $this->fetchContent = $this->fld_content || !is_null( $this->diffto )
            || !is_null( $this->difftotext ) || $this->fld_parsetree;

        $smallLimit = false;
        if ( $this->fetchContent ) {
            $smallLimit = true;
            $this->expandTemplates = $params['expandtemplates'];
            $this->generateXML = $params['generatexml'];
            $this->parseContent = $params['parse'];
            if ( $this->parseContent ) {
                // Must manually initialize unset limit
                if ( is_null( $this->limit ) ) {
                    $this->limit = 1;
                }
            }
            $this->section = $params['section'] ?? false;
        }

        $userMax = $this->parseContent ? 1 : ( $smallLimit ? ApiBase::LIMIT_SML1 : ApiBase::LIMIT_BIG1 );
        $botMax = $this->parseContent ? 1 : ( $smallLimit ? ApiBase::LIMIT_SML2 : ApiBase::LIMIT_BIG2 );
        if ( $this->limit == 'max' ) {
            $this->limit = $this->getMain()->canApiHighLimits() ? $botMax : $userMax;
            if ( $this->setParsedLimit ) {
                $this->getResult()->addParsedLimit( $this->getModuleName(), $this->limit );
            }
        }

        if ( is_null( $this->limit ) ) {
            $this->limit = 10;
        }
        $this->validateLimit( 'limit', $this->limit, 1, $userMax, $botMax );

        $this->needSlots = $this->fetchContent || $this->fld_contentmodel ||
            $this->fld_slotsize || $this->fld_slotsha1;
        if ( $this->needSlots && $this->slotRoles === null ) {
            $encParam = $this->encodeParamName( 'slots' );
            $name = $this->getModuleName();
            $parent = $this->getParent();
            $parentParam = $parent->encodeParamName( $parent->getModuleManager()->getModuleGroup( $name ) );
            $this->addDeprecation(
                [ 'apiwarn-deprecation-missingparam', $encParam ],
                "action=query&{$parentParam}={$name}&!{$encParam}"
            );
        }
    }

    private function checkRevDel( RevisionRecord $revision, $field ) {
        $ret = $revision->isDeleted( $field ) ? self::IS_DELETED : 0;
        if ( $ret ) {
            $canSee = $revision->audienceCan( $field, RevisionRecord::FOR_THIS_USER, $this->getUser() );
            $ret = $ret | ( $canSee ? 0 : self::CANNOT_VIEW );
        }
        return $ret;
    }

    protected function extractRevisionInfo( RevisionRecord $revision, $row ) {
        $vals = [];
        $anyHidden = false;

        if ( $this->fld_ids ) {
            $vals['revid'] = intval( $revision->getId() );
            if ( !is_null( $revision->getParentId() ) ) {
                $vals['parentid'] = intval( $revision->getParentId() );
            }
        }

        if ( $this->fld_flags ) {
            $vals['minor'] = $revision->isMinor();
        }

        if ( $this->fld_user || $this->fld_userid ) {
            $revDel = $this->checkRevDel( $revision, RevisionRecord::DELETED_USER );
            if ( ( $revDel & self::IS_DELETED ) ) {
                $vals['userhidden'] = true;
                $anyHidden = true;
            }
            if ( !( $revDel & self::CANNOT_VIEW ) ) {
                $u = $revision->getUser( RevisionRecord::RAW );
                if ( $this->fld_user ) {
                    $vals['user'] = $u->getName();
                }
                $userid = $u->getId();
                if ( !$userid ) {
                    $vals['anon'] = true;
                }

                if ( $this->fld_userid ) {
                    $vals['userid'] = $userid;
                }
            }
        }

        if ( $this->fld_timestamp ) {
            $vals['timestamp'] = wfTimestamp( TS_ISO_8601, $revision->getTimestamp() );
        }

        if ( $this->fld_size ) {
            try {
                $vals['size'] = intval( $revision->getSize() );
            } catch ( RevisionAccessException $e ) {
                // Back compat: If there's no size, return 0.
                // @todo: Gergő says to mention T198099 as a "todo" here.
                $vals['size'] = 0;
            }
        }

        if ( $this->fld_sha1 ) {
            $revDel = $this->checkRevDel( $revision, RevisionRecord::DELETED_TEXT );
            if ( ( $revDel & self::IS_DELETED ) ) {
                $vals['sha1hidden'] = true;
                $anyHidden = true;
            }
            if ( !( $revDel & self::CANNOT_VIEW ) ) {
                try {
                    $vals['sha1'] = Wikimedia\base_convert( $revision->getSha1(), 36, 16, 40 );
                } catch ( RevisionAccessException $e ) {
                    // Back compat: If there's no sha1, return emtpy string.
                    // @todo: Gergő says to mention T198099 as a "todo" here.
                    $vals['sha1'] = '';
                }
            }
        }

        if ( $this->fld_roles ) {
            $vals['roles'] = $revision->getSlotRoles();
        }

        if ( $this->needSlots ) {
            $revDel = $this->checkRevDel( $revision, RevisionRecord::DELETED_TEXT );
            if ( ( $this->fld_slotsha1 || $this->fetchContent ) && ( $revDel & self::IS_DELETED ) ) {
                $anyHidden = true;
            }
            if ( $this->slotRoles === null ) {
                try {
                    $slot = $revision->getSlot( SlotRecord::MAIN, RevisionRecord::RAW );
                } catch ( RevisionAccessException $e ) {
                    // Back compat: If there's no slot, there's no content, so set 'textmissing'
                    // @todo: Gergő says to mention T198099 as a "todo" here.
                    $vals['textmissing'] = true;
                    $slot = null;
                }

                if ( $slot ) {
                    $content = null;
                    $vals += $this->extractSlotInfo( $slot, $revDel, $content );
                    if ( !empty( $vals['nosuchsection'] ) ) {
                        $this->dieWithError(
                            [
                                'apierror-nosuchsection-what',
                                wfEscapeWikiText( $this->section ),
                                $this->msg( 'revid', $revision->getId() )
                            ],
                            'nosuchsection'
                        );
                    }
                    if ( $content ) {
                        $vals += $this->extractDeprecatedContent( $content, $revision );
                    }
                }
            } else {
                $roles = array_intersect( $this->slotRoles, $revision->getSlotRoles() );
                $vals['slots'] = [
                    ApiResult::META_KVP_MERGE => true,
                ];
                foreach ( $roles as $role ) {
                    try {
                        $slot = $revision->getSlot( $role, RevisionRecord::RAW );
                    } catch ( RevisionAccessException $e ) {
                        // Don't error out here so the client can still process other slots/revisions.
                        // @todo: Gergő says to mention T198099 as a "todo" here.
                        $vals['slots'][$role]['missing'] = true;
                        continue;
                    }
                    $content = null;
                    $vals['slots'][$role] = $this->extractSlotInfo( $slot, $revDel, $content );
                    // @todo Move this into extractSlotInfo() (and remove its $content parameter)
                    // when extractDeprecatedContent() is no more.
                    if ( $content ) {
                        $vals['slots'][$role]['contentmodel'] = $content->getModel();
                        $vals['slots'][$role]['contentformat'] = $content->getDefaultFormat();
                        ApiResult::setContentValue( $vals['slots'][$role], 'content', $content->serialize() );
                    }
                }
                ApiResult::setArrayType( $vals['slots'], 'kvp', 'role' );
                ApiResult::setIndexedTagName( $vals['slots'], 'slot' );
            }
        }

        if ( $this->fld_comment || $this->fld_parsedcomment ) {
            $revDel = $this->checkRevDel( $revision, RevisionRecord::DELETED_COMMENT );
            if ( ( $revDel & self::IS_DELETED ) ) {
                $vals['commenthidden'] = true;
                $anyHidden = true;
            }
            if ( !( $revDel & self::CANNOT_VIEW ) ) {
                $comment = $revision->getComment( RevisionRecord::RAW );
                $comment = $comment ? $comment->text : '';

                if ( $this->fld_comment ) {
                    $vals['comment'] = $comment;
                }

                if ( $this->fld_parsedcomment ) {
                    $vals['parsedcomment'] = Linker::formatComment(
                        $comment, Title::newFromLinkTarget( $revision->getPageAsLinkTarget() )
                    );
                }
            }
        }

        if ( $this->fld_tags ) {
            if ( $row->ts_tags ) {
                $tags = explode( ',', $row->ts_tags );
                ApiResult::setIndexedTagName( $tags, 'tag' );
                $vals['tags'] = $tags;
            } else {
                $vals['tags'] = [];
            }
        }

        if ( $anyHidden && $revision->isDeleted( RevisionRecord::DELETED_RESTRICTED ) ) {
            $vals['suppressed'] = true;
        }

        return $vals;
    }

    private function extractSlotInfo( SlotRecord $slot, $revDel, &$content = null ) {
        $vals = [];
        ApiResult::setArrayType( $vals, 'assoc' );

        if ( $this->fld_slotsize ) {
            $vals['size'] = intval( $slot->getSize() );
        }

        if ( $this->fld_slotsha1 ) {
            if ( ( $revDel & self::IS_DELETED ) ) {
                $vals['sha1hidden'] = true;
            }
            if ( !( $revDel & self::CANNOT_VIEW ) ) {
                if ( $slot->getSha1() != '' ) {
                    $vals['sha1'] = Wikimedia\base_convert( $slot->getSha1(), 36, 16, 40 );
                } else {
                    $vals['sha1'] = '';
                }
            }
        }

        if ( $this->fld_contentmodel ) {
            $vals['contentmodel'] = $slot->getModel();
        }

        $content = null;
        if ( $this->fetchContent ) {
            if ( ( $revDel & self::IS_DELETED ) ) {
                $vals['texthidden'] = true;
            }
            if ( !( $revDel & self::CANNOT_VIEW ) ) {
                try {
                    $content = $slot->getContent();
                } catch ( RevisionAccessException $e ) {
                    // @todo: Gergő says to mention T198099 as a "todo" here.
                    $vals['textmissing'] = true;
                }
                // Expand templates after getting section content because
                // template-added sections don't count and Parser::preprocess()
                // will have less input
                if ( $content && $this->section !== false ) {
                    $content = $content->getSection( $this->section, false );
                    if ( !$content ) {
                        $vals['nosuchsection'] = true;
                    }
                }
            }
        }

        return $vals;
    }

    private function extractDeprecatedContent( Content $content, RevisionRecord $revision ) {
        global $wgParser;

        $vals = [];
        $title = Title::newFromLinkTarget( $revision->getPageAsLinkTarget() );

        if ( $this->fld_parsetree || ( $this->fld_content && $this->generateXML ) ) {
            if ( $content->getModel() === CONTENT_MODEL_WIKITEXT ) {
                $t = $content->getText(); # note: don't set $text

                $wgParser->startExternalParse(
                    $title,
                    ParserOptions::newFromContext( $this->getContext() ),
                    Parser::OT_PREPROCESS
                );
                $dom = $wgParser->preprocessToDom( $t );
                if ( is_callable( [ $dom, 'saveXML' ] ) ) {
                    $xml = $dom->saveXML();
                } else {
                    $xml = $dom->__toString();
                }
                $vals['parsetree'] = $xml;
            } else {
                $vals['badcontentformatforparsetree'] = true;
                $this->addWarning(
                    [
                        'apierror-parsetree-notwikitext-title',
                        wfEscapeWikiText( $title->getPrefixedText() ),
                        $content->getModel()
                    ],
                    'parsetree-notwikitext'
                );
            }
        }

        if ( $this->fld_content ) {
            $text = null;

            if ( $this->expandTemplates && !$this->parseContent ) {
                if ( $content->getModel() === CONTENT_MODEL_WIKITEXT ) {
                    $text = $content->getText();

                    $text = $wgParser->preprocess(
                        $text,
                        $title,
                        ParserOptions::newFromContext( $this->getContext() )
                    );
                } else {
                    $this->addWarning( [
                        'apierror-templateexpansion-notwikitext',
                        wfEscapeWikiText( $title->getPrefixedText() ),
                        $content->getModel()
                    ] );
                    $vals['badcontentformat'] = true;
                    $text = false;
                }
            }
            if ( $this->parseContent ) {
                $po = $content->getParserOutput(
                    $title,
                    $revision->getId(),
                    ParserOptions::newFromContext( $this->getContext() )
                );
                $text = $po->getText();
            }

            if ( $text === null ) {
                $format = $this->contentFormat ?: $content->getDefaultFormat();
                $model = $content->getModel();

                if ( !$content->isSupportedFormat( $format ) ) {
                    $name = wfEscapeWikiText( $title->getPrefixedText() );
                    $this->addWarning( [ 'apierror-badformat', $this->contentFormat, $model, $name ] );
                    $vals['badcontentformat'] = true;
                    $text = false;
                } else {
                    $text = $content->serialize( $format );
                    // always include format and model.
                    // Format is needed to deserialize, model is needed to interpret.
                    $vals['contentformat'] = $format;
                    $vals['contentmodel'] = $model;
                }
            }

            if ( $text !== false ) {
                ApiResult::setContentValue( $vals, 'content', $text );
            }
        }

        if ( $content && ( !is_null( $this->diffto ) || !is_null( $this->difftotext ) ) ) {
            static $n = 0; // Number of uncached diffs we've had

            if ( $n < $this->getConfig()->get( 'APIMaxUncachedDiffs' ) ) {
                $vals['diff'] = [];
                $context = new DerivativeContext( $this->getContext() );
                $context->setTitle( $title );
                $handler = $content->getContentHandler();

                if ( !is_null( $this->difftotext ) ) {
                    $model = $title->getContentModel();

                    if ( $this->contentFormat
                        && !ContentHandler::getForModelID( $model )->isSupportedFormat( $this->contentFormat )
                    ) {
                        $name = wfEscapeWikiText( $title->getPrefixedText() );
                        $this->addWarning( [ 'apierror-badformat', $this->contentFormat, $model, $name ] );
                        $vals['diff']['badcontentformat'] = true;
                        $engine = null;
                    } else {
                        $difftocontent = ContentHandler::makeContent(
                            $this->difftotext,
                            $title,
                            $model,
                            $this->contentFormat
                        );

                        if ( $this->difftotextpst ) {
                            $popts = ParserOptions::newFromContext( $this->getContext() );
                            $difftocontent = $difftocontent->preSaveTransform( $title, $this->getUser(), $popts );
                        }

                        $engine = $handler->createDifferenceEngine( $context );
                        $engine->setContent( $content, $difftocontent );
                    }
                } else {
                    $engine = $handler->createDifferenceEngine( $context, $revision->getId(), $this->diffto );
                    $vals['diff']['from'] = $engine->getOldid();
                    $vals['diff']['to'] = $engine->getNewid();
                }
                if ( $engine ) {
                    $difftext = $engine->getDiffBody();
                    ApiResult::setContentValue( $vals['diff'], 'body', $difftext );
                    if ( !$engine->wasCacheHit() ) {
                        $n++;
                    }
                }
            } else {
                $vals['diff']['notcached'] = true;
            }
        }

        return $vals;
    }

    public function getCacheMode( $params ) {
        if ( $this->userCanSeeRevDel() ) {
            return 'private';
        }

        return 'public';
    }

    public function getAllowedParams() {
        $slotRoles = MediaWikiServices::getInstance()->getSlotRoleRegistry()->getKnownRoles();
        sort( $slotRoles, SORT_STRING );

        return [
            'prop' => [
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_DFLT => 'ids|timestamp|flags|comment|user',
                ApiBase::PARAM_TYPE => [
                    'ids',
                    'flags',
                    'timestamp',
                    'user',
                    'userid',
                    'size',
                    'slotsize',
                    'sha1',
                    'slotsha1',
                    'contentmodel',
                    'comment',
                    'parsedcomment',
                    'content',
                    'tags',
                    'roles',
                    'parsetree',
                ],
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-prop',
                ApiBase::PARAM_HELP_MSG_PER_VALUE => [
                    'ids' => 'apihelp-query+revisions+base-paramvalue-prop-ids',
                    'flags' => 'apihelp-query+revisions+base-paramvalue-prop-flags',
                    'timestamp' => 'apihelp-query+revisions+base-paramvalue-prop-timestamp',
                    'user' => 'apihelp-query+revisions+base-paramvalue-prop-user',
                    'userid' => 'apihelp-query+revisions+base-paramvalue-prop-userid',
                    'size' => 'apihelp-query+revisions+base-paramvalue-prop-size',
                    'slotsize' => 'apihelp-query+revisions+base-paramvalue-prop-slotsize',
                    'sha1' => 'apihelp-query+revisions+base-paramvalue-prop-sha1',
                    'slotsha1' => 'apihelp-query+revisions+base-paramvalue-prop-slotsha1',
                    'contentmodel' => 'apihelp-query+revisions+base-paramvalue-prop-contentmodel',
                    'comment' => 'apihelp-query+revisions+base-paramvalue-prop-comment',
                    'parsedcomment' => 'apihelp-query+revisions+base-paramvalue-prop-parsedcomment',
                    'content' => 'apihelp-query+revisions+base-paramvalue-prop-content',
                    'tags' => 'apihelp-query+revisions+base-paramvalue-prop-tags',
                    'roles' => 'apihelp-query+revisions+base-paramvalue-prop-roles',
                    'parsetree' => [ 'apihelp-query+revisions+base-paramvalue-prop-parsetree',
                        CONTENT_MODEL_WIKITEXT ],
                ],
                ApiBase::PARAM_DEPRECATED_VALUES => [
                    'parsetree' => true,
                ],
            ],
            'slots' => [
                ApiBase::PARAM_TYPE => $slotRoles,
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-slots',
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_ALL => true,
            ],
            'limit' => [
                ApiBase::PARAM_TYPE => 'limit',
                ApiBase::PARAM_MIN => 1,
                ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
                ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2,
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-limit',
            ],
            'expandtemplates' => [
                ApiBase::PARAM_DFLT => false,
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-expandtemplates',
                ApiBase::PARAM_DEPRECATED => true,
            ],
            'generatexml' => [
                ApiBase::PARAM_DFLT => false,
                ApiBase::PARAM_DEPRECATED => true,
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-generatexml',
            ],
            'parse' => [
                ApiBase::PARAM_DFLT => false,
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-parse',
                ApiBase::PARAM_DEPRECATED => true,
            ],
            'section' => [
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-section',
            ],
            'diffto' => [
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-diffto',
                ApiBase::PARAM_DEPRECATED => true,
            ],
            'difftotext' => [
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-difftotext',
                ApiBase::PARAM_DEPRECATED => true,
            ],
            'difftotextpst' => [
                ApiBase::PARAM_DFLT => false,
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-difftotextpst',
                ApiBase::PARAM_DEPRECATED => true,
            ],
            'contentformat' => [
                ApiBase::PARAM_TYPE => ContentHandler::getAllContentFormats(),
                ApiBase::PARAM_HELP_MSG => 'apihelp-query+revisions+base-param-contentformat',
                ApiBase::PARAM_DEPRECATED => true,
            ],
        ];
    }

}