ApiQueryUserInfo.php

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<?php
use MediaWiki\MediaWikiServices;

class ApiQueryUserInfo extends ApiQueryBase {

    const WL_UNREAD_LIMIT = 1000;

    private $params = [];
    private $prop = [];

    public function __construct( ApiQuery $query, $moduleName ) {
        parent::__construct( $query, $moduleName, 'ui' );
    }

    public function execute() {
        $this->params = $this->extractRequestParams();
        $result = $this->getResult();

        if ( !is_null( $this->params['prop'] ) ) {
            $this->prop = array_flip( $this->params['prop'] );
        }

        $r = $this->getCurrentUserInfo();
        $result->addValue( 'query', $this->getModuleName(), $r );
    }

    public static function getBlockInfo( Block $block ) {
        global $wgContLang;
        $vals = [];
        $vals['blockid'] = $block->getId();
        $vals['blockedby'] = $block->getByName();
        $vals['blockedbyid'] = $block->getBy();
        $vals['blockreason'] = $block->mReason;
        $vals['blockedtimestamp'] = wfTimestamp( TS_ISO_8601, $block->mTimestamp );
        $vals['blockexpiry'] = $wgContLang->formatExpiry(
            $block->getExpiry(), TS_ISO_8601, 'infinite'
        );
        return $vals;
    }

    public static function getCentralUserInfo( Config $config, User $user, $attachedWiki = null ) {
        $providerIds = array_keys( $config->get( 'CentralIdLookupProviders' ) );

        $ret = [
            'centralids' => [],
            'attachedlocal' => [],
        ];
        ApiResult::setArrayType( $ret['centralids'], 'assoc' );
        ApiResult::setArrayType( $ret['attachedlocal'], 'assoc' );
        if ( $attachedWiki ) {
            $ret['attachedwiki'] = [];
            ApiResult::setArrayType( $ret['attachedwiki'], 'assoc' );
        }

        $name = $user->getName();
        foreach ( $providerIds as $providerId ) {
            $provider = CentralIdLookup::factory( $providerId );
            $ret['centralids'][$providerId] = $provider->centralIdFromName( $name );
            $ret['attachedlocal'][$providerId] = $provider->isAttached( $user );
            if ( $attachedWiki ) {
                $ret['attachedwiki'][$providerId] = $provider->isAttached( $user, $attachedWiki );
            }
        }

        return $ret;
    }

    protected function getCurrentUserInfo() {
        $user = $this->getUser();
        $vals = [];
        $vals['id'] = intval( $user->getId() );
        $vals['name'] = $user->getName();

        if ( $user->isAnon() ) {
            $vals['anon'] = true;
        }

        if ( isset( $this->prop['blockinfo'] ) && $user->isBlocked() ) {
            $vals = array_merge( $vals, self::getBlockInfo( $user->getBlock() ) );
        }

        if ( isset( $this->prop['hasmsg'] ) ) {
            $vals['messages'] = $user->getNewtalk();
        }

        if ( isset( $this->prop['groups'] ) ) {
            $vals['groups'] = $user->getEffectiveGroups();
            ApiResult::setArrayType( $vals['groups'], 'array' ); // even if empty
            ApiResult::setIndexedTagName( $vals['groups'], 'g' ); // even if empty
        }

        if ( isset( $this->prop['implicitgroups'] ) ) {
            $vals['implicitgroups'] = $user->getAutomaticGroups();
            ApiResult::setArrayType( $vals['implicitgroups'], 'array' ); // even if empty
            ApiResult::setIndexedTagName( $vals['implicitgroups'], 'g' ); // even if empty
        }

        if ( isset( $this->prop['rights'] ) ) {
            // User::getRights() may return duplicate values, strip them
            $vals['rights'] = array_values( array_unique( $user->getRights() ) );
            ApiResult::setArrayType( $vals['rights'], 'array' ); // even if empty
            ApiResult::setIndexedTagName( $vals['rights'], 'r' ); // even if empty
        }

        if ( isset( $this->prop['changeablegroups'] ) ) {
            $vals['changeablegroups'] = $user->changeableGroups();
            ApiResult::setIndexedTagName( $vals['changeablegroups']['add'], 'g' );
            ApiResult::setIndexedTagName( $vals['changeablegroups']['remove'], 'g' );
            ApiResult::setIndexedTagName( $vals['changeablegroups']['add-self'], 'g' );
            ApiResult::setIndexedTagName( $vals['changeablegroups']['remove-self'], 'g' );
        }

        if ( isset( $this->prop['options'] ) ) {
            $vals['options'] = $user->getOptions();
            $vals['options'][ApiResult::META_BC_BOOLS] = array_keys( $vals['options'] );
        }

        if ( isset( $this->prop['preferencestoken'] ) ) {
            $p = $this->getModulePrefix();
            $this->setWarning(
                "{$p}prop=preferencestoken has been deprecated. Please use action=query&meta=tokens instead."
            );
        }
        if ( isset( $this->prop['preferencestoken'] ) &&
            !$this->lacksSameOriginSecurity() &&
            $user->isAllowed( 'editmyoptions' )
        ) {
            $vals['preferencestoken'] = $user->getEditToken( '', $this->getMain()->getRequest() );
        }

        if ( isset( $this->prop['editcount'] ) ) {
            // use intval to prevent null if a non-logged-in user calls
            // api.php?format=jsonfm&action=query&meta=userinfo&uiprop=editcount
            $vals['editcount'] = intval( $user->getEditCount() );
        }

        if ( isset( $this->prop['ratelimits'] ) ) {
            $vals['ratelimits'] = $this->getRateLimits();
        }

        if ( isset( $this->prop['realname'] ) &&
            !in_array( 'realname', $this->getConfig()->get( 'HiddenPrefs' ) )
        ) {
            $vals['realname'] = $user->getRealName();
        }

        if ( $user->isAllowed( 'viewmyprivateinfo' ) ) {
            if ( isset( $this->prop['email'] ) ) {
                $vals['email'] = $user->getEmail();
                $auth = $user->getEmailAuthenticationTimestamp();
                if ( !is_null( $auth ) ) {
                    $vals['emailauthenticated'] = wfTimestamp( TS_ISO_8601, $auth );
                }
            }
        }

        if ( isset( $this->prop['registrationdate'] ) ) {
            $regDate = $user->getRegistration();
            if ( $regDate !== false ) {
                $vals['registrationdate'] = wfTimestamp( TS_ISO_8601, $regDate );
            }
        }

        if ( isset( $this->prop['acceptlang'] ) ) {
            $langs = $this->getRequest()->getAcceptLang();
            $acceptLang = [];
            foreach ( $langs as $lang => $val ) {
                $r = [ 'q' => $val ];
                ApiResult::setContentValue( $r, 'code', $lang );
                $acceptLang[] = $r;
            }
            ApiResult::setIndexedTagName( $acceptLang, 'lang' );
            $vals['acceptlang'] = $acceptLang;
        }

        if ( isset( $this->prop['unreadcount'] ) ) {
            $store = MediaWikiServices::getInstance()->getWatchedItemStore();
            $unreadNotifications = $store->countUnreadNotifications(
                $user,
                self::WL_UNREAD_LIMIT
            );

            if ( $unreadNotifications === true ) {
                $vals['unreadcount'] = self::WL_UNREAD_LIMIT . '+';
            } else {
                $vals['unreadcount'] = $unreadNotifications;
            }
        }

        if ( isset( $this->prop['centralids'] ) ) {
            $vals += self::getCentralUserInfo(
                $this->getConfig(), $this->getUser(), $this->params['attachedwiki']
            );
        }

        return $vals;
    }

    protected function getRateLimits() {
        $retval = [
            ApiResult::META_TYPE => 'assoc',
        ];

        $user = $this->getUser();
        if ( !$user->isPingLimitable() ) {
            return $retval; // No limits
        }

        // Find out which categories we belong to
        $categories = [];
        if ( $user->isAnon() ) {
            $categories[] = 'anon';
        } else {
            $categories[] = 'user';
        }
        if ( $user->isNewbie() ) {
            $categories[] = 'ip';
            $categories[] = 'subnet';
            if ( !$user->isAnon() ) {
                $categories[] = 'newbie';
            }
        }
        $categories = array_merge( $categories, $user->getGroups() );

        // Now get the actual limits
        foreach ( $this->getConfig()->get( 'RateLimits' ) as $action => $limits ) {
            foreach ( $categories as $cat ) {
                if ( isset( $limits[$cat] ) && !is_null( $limits[$cat] ) ) {
                    $retval[$action][$cat]['hits'] = intval( $limits[$cat][0] );
                    $retval[$action][$cat]['seconds'] = intval( $limits[$cat][1] );
                }
            }
        }

        return $retval;
    }

    public function getAllowedParams() {
        return [
            'prop' => [
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_TYPE => [
                    'blockinfo',
                    'hasmsg',
                    'groups',
                    'implicitgroups',
                    'rights',
                    'changeablegroups',
                    'options',
                    'preferencestoken',
                    'editcount',
                    'ratelimits',
                    'email',
                    'realname',
                    'acceptlang',
                    'registrationdate',
                    'unreadcount',
                    'centralids',
                ],
                ApiBase::PARAM_HELP_MSG_PER_VALUE => [
                    'unreadcount' => [
                        'apihelp-query+userinfo-paramvalue-prop-unreadcount',
                        self::WL_UNREAD_LIMIT - 1,
                        self::WL_UNREAD_LIMIT . '+',
                    ],
                ],
            ],
            'attachedwiki' => null,
        ];
    }

    protected function getExamplesMessages() {
        return [
            'action=query&meta=userinfo'
                => 'apihelp-query+userinfo-example-simple',
            'action=query&meta=userinfo&uiprop=blockinfo|groups|rights|hasmsg'
                => 'apihelp-query+userinfo-example-data',
        ];
    }

    public function getHelpUrls() {
        return 'https://www.mediawiki.org/wiki/API:Userinfo';
    }
}